Recording medium

FIELD: physics, computer engineering.

SUBSTANCE: recording medium successively includes a substrate, a first ink-receiving layer and a second ink-receiving layer, wherein content of boric acid in the first ink-receiving layer is 2.0 wt % or more and 7.0 wt % or less with respect to content of polyvinyl alcohol in the first ink-receiving layer, and content of boric acid in the second ink-receiving layer is 10.0 wt % or more and 30.0 wt % or less with respect to content of polyvinyl alcohol in the second ink-receiving layer; the outermost surface layer of the recording medium has particle content of 0.5 wt % or more and 5.0 wt % or less with respect to content of an inorganic pigment, said particles having secondary particle average size of 1.0 mcm or more and 20.0 mcm or less.

EFFECT: disclosed recording medium reduces cracking when bent.

5 cl, 6 tbl

 

BACKGROUND of the INVENTION

The SCOPE of the INVENTION

[0001] the Present invention relates to a storage medium (recording medium).

The DESCRIPTION of the RELEVANT field of TECHNOLOGY

[0002] Known examples of the media in which recording is carried out by the printing ink (also referred to as ink or just paint), include media, each of which contains raskopanny layer on the substrate. Recent trends toward higher recording speed demand media, which have a higher ability to absorb the paint.

[0003] In Japanese patent publication No. 2004-1528 disclosed to the media that contains many krasnopresnya layers on the substrate. In this media the mass ratio of the content of the binder to the pigment content (ratio of binder to pigment) each of krasnopresnya layers increases with increasing distance from kratkovremennogo layer remote from the substrate, to kratkovremennogo layer adjacent to the substrate, thereby improving the ability to absorb ink and the adhesion between the substrate and cracovienne layers.

The INVENTION

[0004] In the case of media on which to record the image, known adverse "phenomenon cracking when bent". The phenomenon of cracking in Shiban and is a phenomenon, when image crack along the folds, when the storage medium on which the recorded image stack. In recent years, the phenomenon of cracking when bent attracted special attention as technical problems in the field of photo books, photo albums and so on, for which demand is increasing. The mechanism of occurrence of cracking when bent in the process of making a photo book or photo album described below.

[0005] the photo Book or photo album made by the method described below. The image recorded on one surface of the first media. In the media make a crease along the center line of the recording media. In this case, the left-hand surface is designated as the left surface and the right surface is designated as a right surface, towards the crease. Then prepare a second storage medium. As with the first storage medium to record the image and fold. The rear surface of the right surface of the first storage media connected to the rear surface of the left surface of the second media. Many media are subjected to a similar operation, thereby making a photo book or photo album, where you can use a double page spread, centered on the crease of each wear the oil information. In this manufacturing process, discovered that, when the storage medium recording the image, passing from one page to the next page, there is a cracking image when bent. Thus, the media used for photo books and photo albums, must have a high resistance to cracking when bent.

[0006] in Addition, the properties required of the media used for photo books and photo albums include high optical density of the formed image, the depressed, the occurrence of cracking after coating kratkovremennogo layer, a high ability to absorb paint, high gloss and high ease of turning by hand.

[0007] According to the studies of the inventors discovered that the storage medium disclosed in Japanese patent publication No. 2004-1528 not have sufficient resistance to cracking when bent or easily turn by hand.

[0008] Accordingly, aspects of the present invention can provide a storage medium that is designed to achieve a high optical density of the formed image, suppress the occurrence of cracking after coating kratkovremennogo layer and having a high ability to absorb paint, high resistance to cracking when is gubanyi, high gloss and high ease of turning by hand.

[0009] one aspect of the present invention, the media consistently includes a substrate, first raskopanny layer and the second raskopanny layer in which the first raskopanny layer contains at least one inorganic pigment selected from the group consisting of aluminum oxide, hydrate of aluminum oxide and finely dispersed silicon dioxide, polyvinyl alcohol and boric acid, and the second raskopanny layer contains at least one inorganic pigment selected from the group consisting of aluminum oxide and hydrate of aluminum oxide, polyvinyl alcohol and boric acid, in which the content of boric acid in the first krasoprema the layer is 2.0% by mass or more and 7.0% by mass or less with respect to the content of polyvinyl alcohol in the first krasoprema layer and the content of boric acid in the second krasoprema layer is 10.0% by mass or more and 30.0% by mass or less with respect to the content of polyvinyl alcohol in the second krasoprema layer, in which the outermost surface layer of the storage media contains particles having an average size of secondary particles of 1.0 μm or more and 20.0 μm or less, in which the content of particles having an average size of secondary particles of 1.0 μm Il is more and to 20.0 μm or less, is 0.5% by mass or more and 5.0 mass% or less with respect to the content of the inorganic pigment in the outermost surface layer.

[0010] Additional features of the present invention will be apparent from the following description of exemplary embodiments.

DESCRIPTION of embodiments

[0011] First will be described the circumstances that led to the present invention. Traditional raskopanny layer, formed from a single kratkovremennogo layer containing inorganic pigment, polyvinyl alcohol and a crosslinking agent such as boric acid, often contains a relatively large amount of cross-linking agent. Thus, such raskopanny layer often has a high degree of crosslinking. In this case, probably should effectively suppressed cracking, which occurs after covering kratkovremennogo layer, thereby providing raskopanny layer having a satisfactory ability to absorb the paint. However, the resulting raskopanny layer is fragile due to its high degree of crosslinking, so raskopanny layer sometimes has a low resistance to cracking when bent.

[0012] In the case where a crosslinking agent is not contained, the cracking that occurs after coating, definitely reduces the ability to absorb to the ACMS. In addition, raskopanny layer sometimes has a low resistance to cracking when bent. The reason for this is not clear, but it is likely that in the case where polyvinyl alcohol is not sewn, weaken the link between polyvinyl alcohol, an inorganic pigment and a water-resistant backing.

[0013] the inventors have conducted a thorough research and found that when polyvinyl alcohol krasoprema layer stitched in a specific range, provides satisfactory resistance to cracking when bent. However, in this particular band, in some cases, after coating cracking occurs and there is a reduced ability to absorb the paint. Accordingly, the inventors have found that when there are two krasnopresnya layer, i.e. the first raskopanny layer and the second raskopanny layer, and when the degree of crosslinking of polyvinyl alcohol in each of these two layers precisely defined, it is possible to increase the resistance to cracking after coating, the ability to absorb paint and resistance to cracking when bent.

[0014] the inventors have conducted further studies and found that the addition of particles, each of which has a specific particle size in the outer surface of the storage medium increases the gloss and ease of perivor the air traffic management hand without compromising resistance to cracking after coating krasnopresnya layers and resistance to cracking when bent. The inventors have also found that the presence of these particles increases the ability to absorb the paint.

Media

[0015] Below will be described storage medium according to aspects of the present invention. The media according to aspects of the present invention includes a substrate and at least two krasnopresnya layer, i.e. the first raskopanny layer and the second raskopanny layer. First raskopanny layer and the second raskopanny layer provided on the substrate in this order. Namely, the first raskopanny layer is closer to the substrate than the second raskopanny layer. In addition, the outermost surface layer of the information carrier according to aspects of the present invention contains particles.

[0016] According to aspects of the present invention, in the case where the storage medium includes two krasnopresnya layer is the first raskopanny layer and the second raskopanny layer, the second raskopanny layer serves as the outermost surface layer. That is, the storage medium having such a structure, the second raskopanny layer contains particles. In the case where the storage medium includes three krasnopresnya layer and when the third raskopanny layer is provided so as to be farther from the substrate than the second ink is receiving layer, this third raskopanny layer serves as the outermost surface layer and contains particles. In aspects of the present invention, the first raskopanny layer may be adjacent to the second kratkovremennym layer.

[0017] aspects of the present invention, the storage medium may include a substrate, a first raskopanny layer and the second raskopanny layer provided in this order, and the second raskopanny layer contains particles. Alternatively, the storage medium may include a substrate, a first raskopanny layer, the second raskopanny layer and the outermost surface layer provided in this order, and the outermost surface layer contains particles.

Substrate

[0018] aspects of the present invention as a substrate, you can use waterproof substrate. Examples of water-resistant substrates include substrates (coated paper), each of which is obtained by coating the paper base polymer; synthetic paper; and plastic films. In particular, as a water-resistant substrate can be used polymer coated paper.

[0019] an Example of the paper base, which can be used for polymer coated paper, is a simple paper General purpose. You can use smooth paper is again, used as a photographic substrate. In particular, you can use a paper basis, which was subjected to surface treatment in which the compression (compaction) is carried out under pressure, for example, by using a calender, during the manufacture of the paper or after manufacture of paper, and which has a high surface smoothness. Examples of paper pulp, paper component basis, include natural pulp, re-used (recycled) pulp and synthetic pulp. These paper pulp can be used separately or in combination as a mixture of two or more. The paper base may contain additives, such as adhesive, reinforcing the paper substance, a filler, an antistatic agent, a fluorescent bleach and dye, which are commonly used in paper production. In addition, the base paper may be coated surface with an adhesive, surface hardening agent, a fluorescent Brightener, an antistatic agent, dye fixing agent. The paper base preferably has a density of 0.6 g/cm3or more and 1.2 g/cm3or less, and preferably 0.7 g/cm3or more. Density of 1.2 g/cm3or less leads to the suppression of the lower shock-absorbing properties and transport properties. Density of 0.6 g/cm3 or more leads to the suppression of reducing the smoothness of the surface. The paper base may have a thickness of 50.0 μm or more. The thickness of 50.0 μm or more leads to improved tensile strength, tensile strength and texture. The paper base may have a thickness of 350,0 μm or less from the viewpoint of performance and so on. The thickness of the polymer (polymer layer), which cover the base paper preferably is 5.0 μm or more, and preferably 8.0 µm or more, and preferably to 40.0 μm or less, and preferably of 35.0 μm or less. Thickness of 5.0 μm or more leads to suppression of the penetration of water and gas in a paper basis and suppression of cracking krasnopresnya layers when bent. The thickness of 40.0 μm or less leads to improved protivoshokovymi properties. Examples of the polymer which can be used include low density polyethylene (LDPE) and high density polyethylene (HDPE). In addition, you can use a linear low density polyethylene (LLDPE) and polypropylene. In particular, for a polymer layer located on the other side (side surface), where the form cracovienne layers, the polyethylene can be added to the titanium oxide rutile or anatase modification, fluorescent bleach or ultramarine blue to improve opacity, brightness and hue. In the case where the polymer layer contains titanium oxide, the content of titanium oxide preference is sustained fashion is 3.0 mass% or more, and it is preferable to 4.0% by mass or more, and preferably 20.0 mass% or less, and more preferable is 13.0% by mass or less, relative to the total weight of the polymer.

[0020] Examples of the plastic film include films formed from thermoplastic polymers, such as polyethylene, polypropylene, polystyrene, polyvinyl chloride and a complex polyester, thermosetting polymers such as polymers of urea, melamine resins and phenolic resins. The plastic film may have a thickness of 50.0 μm or more and 250,0 μm or less.

[0021] water-Resistant substrate can have a desired surface, such as glossy, semi glossy surface or matte surface. In particular, you can use a gloss surface or a matte surface. For example, when the polymer ekstragiruyut from the melt to the surface of the paper base, in order to carry out the coating, can be embossed by casting the polymer surface in contact under pressure with a roller having a patterned surface with irregularities, to form a semi glossy surface or matte surface. In the case where cracovienne layers formed on a substrate having a gloss surface or a matte surface, uneven, reflecting the roughness of the substrate, are formed on top of the spine kratkovremennogo layer, i.e. on the surface of the media. This suppresses the reflection due to excessively high gloss. Size of the binding between the substrate and kratkovremennym layer is high, thereby improving the resistance to cracking when bent. The arithmetical mean roughness (Ra)corresponding to the standard of JIS B0601:2001, of the surface of the storage medium when the length of the cut-off of 0.8 mm, preferably 0.3 μm or more and 6.0 μm or less, and preferably 0.5 µm or more and 3.0 μm or less. The arithmetical mean roughness of 0.3 μm or more and 6.0 μm or less leads to a satisfactory gloss.

[0022] aspects of the present invention on the surface of the substrate, where they form cracovienne layers may be formed primer layer mainly composed of a hydrophilic polymer such as gelatin or polyvinyl alcohol. Alternatively, you can perform improving the adhesion treatment, such as treatment by corona discharge or plasma. Thus, it is possible to improve adhesion between the substrate and kratkovremennym layer.

[0023] the Materials that can be used for krasnopresnya layers according to aspects of the present invention, described in detail below.

Raskopanny layer

[0024] the First and second cracovienne layers according to aspects of the present invention can represent the manage a solidified layers of liquids for coating, designed to create krasnopresnya layers (hereinafter referred to here as "liquids for application kratkovremennogo layer"), and these hardened layers formed by coating liquids for application kratkovremennogo waterproof layer on the substrate and drying the resulting film coating. The total thickness of krasnopresnya layers, including the first raskopanny layer and the second raskopanny layer is preferably from 15.0 μm or more, and preferably of 20.0 μm or more, and preferably to 50.0 μm or less, and preferably to 40.0 μm or less. When the total thickness of krasnopresnya layers is of 15.0 μm or more and 50.0 μm or less, it is possible to achieve satisfactory optical density, the ability to absorb paint and resistance to cracking when bent. In particular, the total thickness krasnopresnya layers may be about 30.0 μm or more and 38.0 μm or less.

[0025] the First raskopanny layer contains at least one inorganic pigment selected from the group consisting of aluminum oxide, hydrate of aluminum oxide and finely dispersed silicon dioxide; polyvinyl alcohol; and boric acid. Second raskopanny layer contains at least one inorganic pigment selected from the group consisting of aluminum oxide and hydrate of aluminum oxide; polyvinyl the initial alcohol; and boric acid. These components will be described below.

Aluminium oxide

[0026] Examples of aluminum oxide (alumina) include γ-alumina, α-alumina, δ-alumina, θ-alumina and χ-alumina. Among these compounds are γ-alumina can be used from the viewpoint of achieving good optical density and the ability to absorb the paint. An example of a γ-alumina is commercially available fine γ-alumina (for example, trade name: AEROXIDE Alu C, the production company EVONIK Industries).

The hydrate of aluminum oxide

[0027] it is Possible to use the hydrate of aluminum oxide represented by the General formula (X):

Al2O3-n(OH)2n·mH2O (X),

where n represents 0, 1, 2 or 3, and m represents 0 or more and 10 or less, and preferably 0 or more and 5 or less, provided that m and n are not zero at the same time, m can be an integer or non-integer number, since mH2O is often a detachable water, which is not involved in the formation of the crystal lattice, and m can reach zero when the hydrate of alumina is heated.

[0028] the Known crystal structure of the hydrate of aluminum oxide include amorphous gibbsite and boehmite, depending on the temperature of heat treatment. You can use GI the Rath of aluminum oxide, having any of these crystal structures. In particular, you can use the hydrate of aluminum oxide having a structure of boehmite or amorphous structure determined by x-ray diffraction analysis. Specific examples of the hydrate of aluminum oxide include hydrates of aluminum oxide, as described, for example, in Japanese patent publications No. 7-232473, 8-132731, 9-66664 and 9-76628. Specific examples of the form of the hydrate of aluminum oxide used in aspects of the present invention include an indefinite shape and definite forms, such as spherical and plate form. You can use any of the indeterminate forms and in certain forms. Alternatively, you can use them in combination. In particular, you can use the hydrate of alumina, primary particles which have srednetsenovoj a particle size of 5 nm or more and 50 nm or less. You can use the plate hydrate of aluminum oxide having an aspect ratio of 2 or more. The ratio may be determined by the method described in Japanese patent publication No. 5-16015. Namely, the ratio expressed as the ratio of diameter to thickness of the particles. Used herein, the term "diameter" means the diameter of a circle (diameter of equivalent circle with area equal to the square of the projection of each particle hydrate of aluminum oxide when observing g the dratha alumina under a microscope or electron microscope.

[0029] aspects of the present invention, the specific surface area of the hydrate of aluminum oxide, determined by the method of brunauer-Emmett-teller (BET), i.e., specific surface area by BET, is preferably 100 m2/g or more and 200 m2/g or less, and preferably 125 m2/g or more and 190 m2/g or less. Used here BET method means a method in which molecules or ions with a known size, give the ability to adsorb on the surfaces of the sample and to determine the specific surface area of the sample by the number of adsorbed molecules or ions. In aspects of the present invention as a gas to be adsorbed to the sample, using gaseous nitrogen.

[0030] the Hydrate of aluminum oxide can be obtained in a known manner, for example the way in which the hydrolyzing alcoholate (alkoxide) aluminum, or the way in which the hydrolyzing sodium aluminate as described in U.S. patent No. 4242271 and 4202870. Alternatively, the hydrate of aluminum oxide can also be obtained in a known manner, for example by a method in which an aqueous sodium aluminate solution is neutralized by adding an aqueous solution of aluminum sulfate, aluminum chloride or the like. Specific examples of the hydrate of aluminum oxide used in aspects of the present invention include hydrates of the oxide of al is MINIA, having a structure of boehmite and amorphous structure defined x-ray diffraction analysis. A concrete example of hydrate of alumina is commercially available hydrate aluminum oxide (for example, trade name: DISPERAL HP14, manufactured by Sasol).

[0031] the aluminum Oxide and hydrate of aluminum oxide can be used in combination as a mixture. In the case where the aluminum oxide and hydrate of aluminum oxide are mixed together, powdered aluminum oxide and powdered hydrate of aluminum oxide can be mixed and atomized for preparation of dispersion (Zola). Alternatively, a dispersion of aluminum oxide and the variance of the hydrate of aluminum oxide can be mixed together. Each of the alumina and hydrate of aluminum oxide in the dispersion preferably has an average particle size (the size of the secondary particles) of 50 nm or more and 300 nm or less, and preferably 100 nm or more and 200 nm or less. The average particle size (the size of the secondary particles) of each of the alumina and hydrate of aluminum oxide in the dispersion can be measured by dynamic light scattering. In particular, the variance, similar to a dilute aqueous solution prepared by diluting the dispersion with deionized water, can be measured using a measuring device (series ELSZ, for example ELSZ-1 or ELSZ-2, the production company Osuka Electronics Co., Ltd.), thereby measuring the average particle size of aluminum oxide and hydrate of aluminum oxide.

Highly dispersed silicon dioxide

[0032] highly dispersed silicon dioxide denotes a silicon dioxide (silica)obtained by the combustion of silicon tetrachloride, hydrogen and oxygen, and is also known as silica obtained by a dry method. Example highly disperse silicon dioxide is commercially available highly dispersed silicon dioxide (for example, trade name: AEROSIL 300, manufactured by company EVONIK industries).

[0033] highly dispersed silicon dioxide preferably has a specific surface area by BET 50 m2/g or more, and preferably 200 m2/g or more, and preferably 400 m2/g or less, and preferably 350 m2/g or less, from the viewpoint of achieving good ability to absorb the dye, the optical density and resistance to cracking during coating and drying. Specific surface area by BET define in the same way as described above hydrate of aluminum oxide. Highly disperse silicon dioxide in a liquid (dispersion) for applying kratkovremennogo layer containing highly dispersed silicon dioxide preferably has an average particle size (the size of the secondary particles) of 50 nm or more and 300 nm or less, and prepost thainee - 100 nm or more and 200 nm or less. The average particle size of highly disperse silicon dioxide in the dispersion can be measured by the same method as that for measuring the average particle size of aluminum oxide and hydrate of aluminum oxide, as described above.

Polyvinyl alcohol

[0034] Examples of the polyvinyl alcohol is a common polyvinyl alcohol obtained by hydrolysis of polyvinyl acetate. Polyvinyl alcohol preferably has an average viscometric degree of polymerization of 2000 or more and 4500 or less, and preferably 3,000 or more and 4,000 or less. The average viscometric degree of polymerization of 2000 or more and 4500 or less leads to improvements in the ability to absorb the dye, the optical density and resistance to cracking when bent, and suppresses the occurrence of cracking during the coating process. Polyvinyl alcohol can be a partially or completely saponified polyvinyl alcohol. Polyvinyl alcohol may have a degree of saponification of 85 mol.% or more and 100 mol.% or less. Example polyvinyl alcohol PVA is 235 (production company Kuraray Co., Ltd., the degree of saponification: 88 mol.%, the average degree of polymerization: 3500).

[0035] In the case where polyvinyl alcohol is included in the composition of the liquid for applying kratkovremennogo layer, polyvinyl alcohol can sod is to ratesa in aqueous solution. This contains polyvinyl alcohol aqueous solution may have a concentration of polyvinyl alcohol to 4.0% by mass or more and 15.0 mass% or less, calculated on the solids content. The concentration of polyvinyl alcohol to 4.0% by mass or more and 15.0% by mass leads to the suppression of a significant reduction in drying rate due to excessive decrease in the concentration of liquid for spraying, and also leads to the suppression of the decrease in smoothness due to a significant increase in the viscosity of the liquid for application caused an increase in the concentration of the liquid to be applied.

[0036] Each of krasnopresnya layers may optionally contain a binder other than polyvinyl alcohol. To adequately provide beneficial effects of the aspects of the present invention, the content of the binder other than polyvinyl alcohol, may be to 50.0% by mass or less relative to the total mass of polyvinyl alcohol.

Boric acid

[0037] examples of the boric acids include orthoboric acid (H3BO3), metaboric acid and hypobromous acid. These compounds can be used in the form of borates. Examples of the borates include orthoborate, such as InBO3, ScBO3, YBO3, LaBO3, Mg3(BO3)2and Co3(BO3)2; diborate, such as the Mg2B2O5and Cosub> 2B2O5; metaborate, such as LiBO2, Ca(BO2)2, NaBO2and KBO2; tetraborate, such as Na2B4O7·10H2O; pentaborate, such as KB5O8·4H2O CA2In6About11·7H2Oh and CsB5O5; and their hydrates. Among these borates can be used orthoboric acid from the viewpoint of stability of the liquid for application in time. In aspects of the present invention, the content of orthoboric acid is preferably 80 mass% or more and 100 mass% or less, and preferably 90 mass% or more and 100 mass% or less, relative to the total weight of boric acid.

[0038] In the case where boric acid is in the composition of the liquid for applying kratkovremennogo layer, boric acid may be contained in the aqueous solution. This contains boric acid aqueous solution may have a solids content of 0.5% by mass or more and 8.0% by mass or less. The concentration of boric acid, and 0.5% by mass or more and 8.0% by mass or less leads to the suppression of a significant reduction in drying rate due to the lower concentration of liquid for application and leads to the suppression of precipitation of boric acid in the precipitate.

Supplement

[0039] Each of krasnopresnya layers of the information carrier according to aspects of the present invention may, when is neobhodimosti, to contain the additive. Examples of the additive include fixing agents such as cationic resins; flocculants such as salts of multivalent metals; surface-active substances (surfactants); fluorescent brighteners; thickening agents; defoamers; foam inhibitors; antiadhesive; penetrating agents; lubricating agents; ultraviolet absorbers of radiation; antioxidants; leveling means; preservatives; and pH regulators.

[0040] the Characteristic structure of the first kratkovremennogo layer, the second kratkovremennogo layer and the outermost surface layer will be described in detail below.

First raskopanny layer

[0041] aspects of the present invention, the content of boric acid in the first krasoprema layer is 2.0% by mass or more and 7.0% by mass or less with respect to the content of polyvinyl alcohol in the first krasoprema layer. The content of boric acid and 2.0% by mass or more and 7.0% by mass or less leads to suppression of occurrence of cracking after coating and increase resistance to cracking when bent. The content of boric acid in the first krasoprema layer may amount to 3.0% by mass or more and 6.5% by mass or less with respect to the content of polyvinyl alcohol in the first krasoprema layer.

[0042] the First raskopanny layer with the contains as inorganic pigment, at least one connection, selected from aluminum oxide, hydrate of aluminum oxide and finely dispersed silicon dioxide. The hydrate of aluminum oxide has a high surface density of hydroxyl groups and a high bonding strength with polyvinyl alcohol as compared with high disperse silicon dioxide and aluminum oxide. Thus, the inorganic pigment in the first krasoprema layer preferably has a content of hydrate of alumina to 50.0% by mass or more, preferably 80% by mass or more, and particularly preferably 100% by weight, i.e. inorganic pigment consists of a hydrate of aluminum oxide, from the viewpoint of the resistance to cracking when bent.

[0043] the Content of polyvinyl alcohol in the first krasoprema layer is preferably of 11.0% by mass or more and 40.0% by mass or less, and preferably 12.0 mass% or more and 30.0% by mass or less, relative to the content of the inorganic pigment in the first krasoprema layer. The content of polyvinyl alcohol to 11.0% by mass or more and 40.0% by mass or less, further enhances the suppression of cracking after coating, the ability to absorb paint and resistance to cracking when bent. First raskopanny layer preferably has a thickness of 20.0 μm or more and 40.0 μm or less, preferably - 25,0 µm or more is to 35.0 μm or less, and especially preferably of 26.5 μm or more and 33.0 μm or less.

Second raskopanny layer

[0044] aspects of the present invention the ratio of boric acid to the amount of polyvinyl alcohol in the second krasoprema layer is higher than in the first krasoprema layer. In aspects of the present invention this ratio in the second krasoprema layer not only higher than in the first krasoprema layer. The content of boric acid in the second krasoprema layer is 10.0% by mass or more and 30.0% by mass or less with respect to the content of polyvinyl alcohol in the second krasoprema layer. Second raskopanny layer with the content of boric acid to 10.0% by mass or more and 30.0% by mass or less has a suitably high degree of crosslinking polyvinyl alcohol compared with the first kratkovremennym layer. Thus, even if the surface of the drops fall colors, polyvinyl alcohol less inclined to swell, thereby providing a high ability to absorb the paint and improve resistance to cracking during coating and drying. The content of boric acid in the second krasoprema layer can be 12.0 mass% or more and 25.0% by mass or less with respect to the content of polyvinyl alcohol in the second krasoprema layer.

[0045] the content of the polyvinyl alcohol during the second krasoprema layer preferably is 5.0% by mass or more and 10.0 mass% or less, and it is preferable to 6.0 mass% or more and 9.0% by mass or less, relative to the content of the inorganic pigment in the second krasoprema layer. The content of polyvinyl alcohol is 5.0% by mass or more and 10.0 mass% or less leads to suppression of occurrence of cracking after coating and increase the ability to absorb paint and resistance to cracking when bent, in combination with the structure of the first kratkovremennogo layer having a quantity of boric acid relative to the amount of polyvinyl alcohol.

[0046] the Second raskopanny layer contains, as the inorganic pigment is at least one compound selected from alumina and hydrate of aluminum oxide. The total mass of aluminum oxide and hydrate of aluminum oxide is preferably 90 mass% or more, and preferably 100% by weight, i.e. inorganic pigment in the second krasoprema layer consists of aluminum oxide and/or hydrate of aluminum oxide, relative to the total mass of the inorganic pigment in the second krasoprema layer. Second raskopanny layer may contain as an inorganic pigment such as alumina and hydrate of aluminum oxide. In the case where the second raskopanny layer contains as inorganic pigment such as alumina and hydrate of aluminum oxide is INIA, the ratio of aluminum oxide to hydrate aluminum oxide may range from 60:40 to 80:20.

[0047] the Second raskopanny layer preferably has a thickness of 5.0 μm or more and 20.0 μm or less, and preferably to 7.0 μm or more and 15.0 μm or less. The ratio of the thicknesses of the second kratkovremennogo layer to the first krasoprema layer, i.e. the second raskopanny layer/first raskopanny layer may be of 0.08 or more and 1.0 or less. The ratio of the thicknesses of 0.08 or more and 1.0 or less leads to a satisfactory resistance to cracking when bent, the ability to absorb paint and resistance to cracking during coating and drying.

[0048] aspects of the present invention between the first kratkovremennym layer and the substrate or between the first kratkovremennym layer and the second kratkovremennym layer can be provided a thin film on the condition that significantly attenuated the beneficial effects of the aspects of the present invention. A thin film may have a thickness of 0.1 μm or more and 3.0 μm or less.

[0049] the Term "thickness"used in aspects of the present invention, the mean thickness in the dry state, and the thickness is defined as the average value of measured values obtained by measuring the thickness at four points in the slice using a scanning electron microscope. In aspects nastojasih the invention the object, the thickness of which is measured, specified rectangle. Four points are located in positions 1 cm from the four corners in the direction of the center of gravity of the quadrangle.

The outermost surface layer

[0050] The outermost surface layer of the information carrier according to aspects of the present invention contains particles having an average size of secondary particles of 1.0 μm or more and 20.0 μm or less. The inventors have conducted studies and found that the presence of such particles on the outer surface of the storage medium attached to the information carrier suitable sliding properties, thereby improving the ease of turning by hand for making books. Photo book made with double-sided glossy paper having the layer structure of the media according to aspects of the present invention, at each of its surfaces, effectively suppresses the occurrence of such phenomena as binding krasnopresnya layers and adhesion krasnopresnya layers by friction, which tends to occur particularly when using photobook with the stitches vtocco or perfect binding with binding (perfect-bound) without cardboard. Thus, the user can view a photo book without strain.

[0051] as the particles can be used organic particles and inorganic particles. Particles prefer is Ino have an average size of secondary particles of 2.0 μm or more and 10.0 μm or less, and preferably of 2.0 μm or more and 6.0 μm or less. The particle content of 0.5% by mass or more and 5.0 mass% or less with respect to the content of the inorganic pigment in the outermost surface layer. When the particle content is within the above range, the ease of turning by hand is improved without impairing the gloss. The particle content can go up to 1.5% by weight or more and 4.0 mass% or less. The average size of secondary particles of the particles according to aspects of the present invention are determined by observing the surface of the medium in the optical microscope, measuring diameters of 100 randomly selected particles and compute the average values of these diameters.

[0052] Examples of the organic particles, which can be used include, but without limiting them specifically, particles consisting of organic substances, such as polyamide resin, polyester resin, polycarbonate resin, polyolefin resin, polysulfone resin, polystyrene resin, polyvinyl chloride resin, polyvinylidenechloride resin, polyphenylenesulfide resin, ionomer resin, resin, acrylic-based resins vinyl-based polymers, urea, melamine resin, urethane resin, nylon, a copolymer of these polymers, compounds based on cellulose and KRA is small. Among these compounds can be used polyolefin resin, polystyrene resin, resin, acrylic-based and starch. In particular, it is possible to use polyolefin resin. The form of the organic particles is not specifically limited. Assume that the form may be closer to globular form. In particular, the shape can be spherical. The surface charge of the particles may be cationic or non-ionic due to the affinity (affinity), since the aluminum oxide used for krasnopresnya layer is cationic. In particular, the surface charge of the particles can be cationic.

[0053] as the inorganic particles, you can use the wet method silica. As obtained by wet silicon dioxide can be used besieged (i.e. precipitated precipitated) silica or gel-like silicon dioxide. Precipitated silica can be obtained by the reaction of sodium silicate and sulfuric acid under alkaline conditions. In particular, precipitated silicon dioxide receive through the following stages: after particles of silicon dioxide have increased, the particles aggregate and precipitate. Particles filtered, washed with water, dried, crushed and divided by size (sorted). Secondary particles of silicon dioxide, obtained in this way, relative activities are crushed is but easy. Examples of precipitated silicon dioxide include commercially available products such as NIPSIL (production company Tosoh Silica Corporation) and TOKUSIL and FINESIL (production company Tokuyama Corporation). Specific examples of precipitated silicon dioxide include NIPSIL K-500 (manufactured by company Tosoh Silica Corporation), FINESIL X-37 (production company Tokuyama Corporation), FINESIL X-37B (production company Tokuyama Corporation) and FINESIL X-45 (production company Tokuyama Corporation).

[0054] the Gel-like silicon dioxide can be obtained by the reaction of sodium silicate and sulfuric acid under acidic conditions. The application of this process of obtaining leads to aggregation of the particles of silicon dioxide, while the growth of the primary particles is suppressed, thereby providing the aggregated particles in which primary particles are strongly bound together. Examples of gel-like silicon dioxide include commercially available products such as MIZUKASIL (production company Mizusawa Industrial Chemicals, Ltd.) and SYLOJET (production company Grace Japan K.K.). Specific examples of the gel-like silicon dioxide include MIZUKASIL P-707 (production company Mizusawa Industrial Chemicals, Ltd.) and MIZUKASIL P78A (production company Mizusawa Industrial Chemicals, Ltd.

[0055] the Surface energy obtained by wet silicon dioxide typically is anionic. Obtained by wet anionic silicon dioxide has a high affinity to aluminum oxide and therefore the way, can be used as is. Alternatively, obtained by wet silicon dioxide can be cationicity cationic polymer or the like before use.

[0056] aspects of the present invention, in the case where the second raskopanny layer serves as the outermost surface layer of the information medium, these particles contains a second raskopanny layer. In the case where the outermost surface layer of the information carrier according to aspects of the present invention differs from the second kratkovremennogo layer and when it is provided separately, these particles contain the outermost surface layer. In this case, the second raskopanny layer may also contain these particles. However, according to authors of the invention the presence of these particles on the external surface layer of the media is very important to improve the ease of turning by hand. Thus, in the case of media, which includes the second raskopanny layer and the outermost surface layer of the particles in the second krasoprema layer contribute less significantly to this effect. Accordingly, the content of particles in the second krasoprema layer is preferably 0.1% by mass or less, preferably 0.01 percent by mass or less, and particularly preferably 0,00% by weight, is the inorganic pigment in the second krasoprema layer.

[0057] In the case where the storage medium includes an outermost surface layer that is different from the second kratkovremennogo layer, the outermost surface layer may contain an inorganic pigment, polyvinyl alcohol and boric acid in addition to particles having an average size of secondary particles of 1.0 μm or more and 20.0 μm or less.

[0058] In the case where the outermost surface layer contains polyvinyl alcohol and boric acid, the content of boric acid in the surface layer preferably is 10.0% by mass or more and 30.0% by mass or less, and preferably 12.0 mass% or more and 25.0% by mass or less, relative to the polyvinyl alcohol.

[0059] the Content of polyvinyl alcohol in the outermost surface layer is preferably of 5.0% by mass or more and 10.0 mass% or less, and more preferable to 6.0 mass% or more and 9.0% by mass or less, relative to the inorganic pigment in the outermost surface layer.

[0060] The outermost surface layer may contain as inorganic pigment is at least one compound selected from alumina and hydrate of aluminum oxide. The total mass of aluminum oxide and hydrate of aluminum oxide is preferably 90 mass% or more, and preferably 100% by the Assos, with respect to the total mass of the inorganic pigment in the outermost surface layer. The outermost surface layer may contain as an inorganic pigment such as alumina and hydrate of aluminum oxide. In the case where the outermost surface layer contains as inorganic pigment such as alumina and hydrate of aluminum oxide, the ratio of aluminum oxide to hydrate aluminum oxide may range from 60:40 to 80:20.

[0061] In the case where the outermost surface layer is provided separately from the second kratkovremennogo layer, the outermost surface layer preferably has a thickness of 0.10 μm or more and 5.0 μm or less, and preferably 0.2 μm or more and 3.0 μm or less.

Liquid for applying kratkovremennogo layer

The Sol containing at least one compound selected from alumina and hydrate of aluminum oxide

[0062] According to aspects of the present invention in the liquid for applying kratkovremennogo layer you can add aluminum oxide or hydrate of aluminum oxide in the form of a dispersion in deflocculating condition due deflocculant. Containing hydrate of aluminum oxide dispersion, deflocculating using deflocculant, also known as Sol hydrate of aluminum oxide. Containing the aluminum oxide dispersion, Belokurova the ing with deflocculant, also known as a Sol of aluminum oxide. The Sol containing at least one compound selected from alumina and hydrate of aluminum oxide, may optionally contain an acid that serves as deflocculants. In addition, the Sol may further comprise additives such as a dispersion medium, a pigment dispersant, a thickener, a fluidity improver, an antifoam, a foaming inhibitor, surfactant, release agent, penetrating agent, color pigment, color pigment, fluorescent Brightener, UV absorbers, antioxidant, preservative, fungicide, water resistant additive, dye fixing substance, a crosslinking agent or means of protection against atmospheric influences. Examples of the dispersion medium used for Zola, containing at least one compound selected from alumina and hydrate of aluminum oxide include water, organic solvents and mixed solvent of them. In particular, it is possible to use water. In aspects of the present invention as deflocculant you can use acid (delocalised acid).

[0063] aspects of the present invention, the dispersion of the hydrate of aluminum oxide may contain as delocalise acid alkylsulfonate acid with 1-4 carbon atoms. That is cracovienne SL and may contain alkylsulfonate acid with 1-4 carbon atoms.

[0064] the Use of deflocculant alkylsulfonic acid with 4 or less carbon atoms or sulfonic acid containing benzene ring, improves color stability and moisture resistance and easily increases the optical density. The reason for this is believed that a smaller number of carbon atoms decreases the hydrophobicity of deflocculant, reducing the hydrophobicity of the surfaces of the particles of hydrate of alumina, thereby increasing the rate of fixation of the dye on the surfaces of particles of hydrate of alumina. In the case where the hydrate of aluminum oxide deflocculant alkylsulfonic acid with 4 or less carbon atoms or sulfonic acid containing benzene ring, can be provided, in particular, a satisfactory stability of the dispersion, thereby suppressing the increase in the viscosity of the dispersion. In addition, it is possible to suppress the aggregation of hydrate of alumina, thereby increasing the optical density.

[0065] Alkylsulfonate acid with 1-4 carbon atoms may be a monobasic acid containing only alphagroup as solubilizers group. From the viewpoint of moisture resistance can be used alkyl group which has no solubilizers groups, such as hydroxyl group or carboxyl group. Alkylsulfonate acid may be a single-axis is percent acid, as the alkyl group may be an unsubstituted alkyl group with 1-4 carbon atoms. The alkyl group may be linear or branched. Examples alkylsulfonic acid, which can be used include methanesulfonate acid, econsultancy acid, isopropanolamine acid, n-propanesulfonic acid, n-butanesulfonic acid, isobutyrophenone acid and tert-butanesulfonyl acid. Among these compounds can be used methansulfonate acid, econsultancy acid, isopropanolamine acid and n-propanesulfonic acid. In particular, you can use methansulfonate acid. Can be used in combination of two or more types alkylsulfonic acids, each of which has 1 to 4 carbon atoms.

[0066] the Content alkylsulfonic acid can amount to 1.0% by mass or more and 2.0 mass% or less with respect to the hydrate of aluminum oxide. Content alkylsulfonic acid is less than 1.0% by weight leads to poor resistance to moisture and ozone. Content alkylsulfonic acid more than 2.0% by weight leads to poor ability to absorb the paint. Content alkylsulfonic acid may be of 1.3% by mass or more. Content alkylsulfonic acid may be of 1.6% by mass or less.

The Sol containing highly dispersed silicon dioxide

[0067] highly dispersed silicon dioxide used in aspects of the present invention, can be added to the liquid for applying kratkovremennogo layer in a state in which silica is dispersed in the dispersion medium. Dispersion containing serves as a stain cationic polymer and dispersed therein finely dispersed silicon dioxide, is defined as the Sol highly dispersed silicon dioxide. Examples of the cationic polymer include polyethyleneimine resin, polyamine resin, polyamide resin, polyamide-epichlorhydrin resin, polyamine-epichlorhydrine resin, polyamide-polyamine-epichlorhydrine resin, polydiethylene resin and dicyandiamide condensates. These cationic resins can be used singly or in combination. Sol highly dispersed silicon dioxide may contain a salt of polyvalent metal. Examples of salts of polyvalent metal include aluminum compounds, such as poly(aluminum chloride), poly(aluminum acetate) and poly(aluminum lactate). Sol highly dispersed silicon dioxide can optionally contain an additive such as a surface modifier such as a silane binder, a thickener, a fluidity improver, an antifoam, a foaming inhibitor, surfactant, is antiadhesive, the penetrating agent, color pigment, color pigment, fluorescent Brightener, UV absorbers, antioxidant, preservative, fungicide, water resistant additive, a crosslinking agent or means of protection against atmospheric influences. Examples of the dispersion medium for Zola highly dispersed silicon dioxide include water, organic solvents, and mixed solvents of them. In particular, you can use the water.

The method of applying a fluid coating kratkovremennogo layer

[0068] aspects of the present invention, the liquid for applying kratkovremennogo layer is applied and dried to form raskopanny layer. Liquid for applying kratkovremennogo layer can be applied by means known in the coating. Examples of the method of coating include a method with slotted head, the way of the moving platen, the method of applying irrigation, extrusion method, a method of applying an air scraper, application method roller, and a method of applying a core-bar. Liquid for applying the first kratkovremennogo layer and the liquid for applying the second kratkovremennogo layer can be applied and dried using the serial coating or can be applied by simultaneous multilayer coating. In particular, due to the military application of multilayer coatings can be made by way of the moving platen, the slide bead method) due to its high performance.

[0069] the Drying after coating can be performed using a dryer with hot air, for example a linear tunnel dryers, arc dryers, dryers with a closed air circuit or dryer with sinusoidal with an air bag, or the dryer that uses infrared rays, heat, microwaves, or the like.

EXAMPLES

[0070] Although aspects of the present invention will be specifically described below using examples, aspects of the present invention is not limited to these examples. It should be noted that the term "part(s)" means the mass(s) part(s).

Manufacture of water-resistant substrates

[0071] Prepared pulp containing 80 parts of bleached Kraft pulp of hardwood (LBKP)having a degree of grinding of 450 ml in terms of canadian standard grinding (CSF)and 20 parts of bleached Kraft pulp from coniferous wood (NBKP)having a degree of grinding 480 ml in terms of CSF. Then in the paper mass is added to 0.60 part cationizing starch, 10 parts of heavy calcium carbonate, 15 parts of precipitated calcium carbonate, 0,10 parts of the dimer of alkylbetaine and 0.03 parts of cationic polyacrylamide. The mixture was diluted with water so as to have a solids content of 3.0% by mass, thereby obtaining a paper material. The resulting paper material was subjected to what izgotovlenie paper clinocerinae paper machine (machine Furdrine), which was carried out by three-stage wet pressing, followed by drying using a multi-cylinder dryer. The resulting paper was impregnated with an aqueous solution of oxidized starch in order to obtain a solids content of 1.0 g/m2using a size press, and then dried. The dry paper was subjected to machine calandrinia in order to obtain a base paper having a paper weight of 155 g/m2.

[0072] each surface of the paper base was applied polymer composition comprising a low density polyethylene (70 parts), high density polyethylene (20 parts) and titanium oxide (10 parts), so that the resulting polymer layers has a thickness of 25.0 μm each, thereby forming polymer layers. Directly after the formation of the polymer layers was carried out by polishing using a cooling roller with polished surface in order to give each layer of polymer glossy surface. Each polymer layer was subjected to corona discharge. Then put the acid-treated gelatin at a density of coverage of 0.05 g/m2in terms of solid content, thereby forming improving the adhesion layers. Thus obtained water-resistant backing with double-sided glossy paper.

Preparation Zola hydrate of oxide of al is MINIA

[0073] First, 1.5 parts methanesulfonic acid, serving as deflocculants, was added to 333 parts of deionized water to prepare an aqueous solution methanesulfonic acid. Then, this aqueous solution methanesulfonic acid was gradually added to 100 parts of hydrate of alumina (DISPERAL HP14, manufactured by Sasol) with stirring at a speed of 3000 rpm using a mixer-homogenizer (BECAUSE Homomixer MARK II Model of 2.5, the production company Tokushu Kika Kogyo Co., Ltd). After complete addition, the mixture was stirred for 30 minutes to obtain a colloidal solution of hydrate of alumina, having a solids content of 23.0 per cent by weight. The average size of secondary particles of hydrate of aluminum oxide in the ash hydrate of aluminum oxide was measured by the instrument ELSZ-2 (production company Otsuka Electronics Co., Ltd.) and found equal to 160 nm.

Preparation of a Sol of aluminum oxide

[0074] First, 1.5 parts methanesulfonic acid, serving as deflocculants, was added to 333 parts of deionized water to prepare an aqueous solution methanesulfonic acid. Then, this aqueous solution methanesulfonic acid was gradually added to 100 parts of aluminum oxide (AEROXIDE Alu C, the production company EVONIK Industries) under stirring with a speed of 3000 rpm using a mixer-homogenizer (BECAUSE Homomixer MARK II Model of 2.5, the production company Tokushu Kika Kogyo Co., Ltd). After the adding the mixture was stirred for 30 minutes, to obtain a Sol of aluminum oxide having a solids content of 23.0 per cent by weight. The average size of secondary particles of aluminum oxide in the ash of aluminum oxide was measured by the instrument ELSZ-2 (production company Otsuka Electronics Co., Ltd.) and found equal to 180 nm.

Preparation Zola highly dispersed silicon dioxide

[0075] First, 4.0 parts of a cationic polymer (Shallol DC-902P, made by Dai-Ichi Kogyo Seiyaku Co., Ltd) was added to 333 parts of deionized water to prepare an aqueous solution of the cationic polymer. Then, to this aqueous solution of the cationic polymer was gradually added 100 parts of highly disperse silicon dioxide (AEROSIL 300, manufactured by company EVONIK Industries) under stirring with a speed of 3000 rpm using a mixer-homogenizer (BECAUSE Homomixer MARK II Model of 2.5, the production company Tokushu Kika Kogyo Co., Ltd). After complete addition, the mixture was diluted with deionized water and homogenized twice using high-pressure homogenizer (Nanomizer, the production company Yoshida Kikai Co., Ltd.), to obtain a Sol of fine silica having a solids content of 20.0 mass%. The average size of secondary particles highly dispersed silicon dioxide in the ashes of highly disperse silicon dioxide was measured by the instrument ELSZ-2 (production company Otsuka Electronics Co., Ltd.) and found equal to 150 nm.

Prigotovlenia.detam polyvinyl alcohol aqueous solution

[0076] First, 100 parts of polyvinyl alcohol (PVA 235, manufactured by Kuraray company Co., Ltd., the degree of saponification: 88 mol.%, the average degree of polymerization: 3500) was added to 1150 parts of deionized water under stirring. When you are finished adding polyvinyl alcohol was dissolved by heating to 90°C to obtain containing polyvinyl alcohol aqueous solution (hereinafter also referred to as "aqueous solution of polyvinyl alcohol)having a solid content of 8.0% by mass.

Getting media 1

Liquid 1 for applying the second kratkovremennogo layer

[0077] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, to thereby form a mixed Sol. Obtained using the wet method silica (FINESIL X-37B, the average size of secondary particles: of 3.7 μm, made by Tokuyama Corporation) was mixed with the mixed Sol so that the ratio obtained using the wet method silica, calculated on the solids content was 2.0 parts relative to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was mixed with poluchivshim the mixed Sol thus, for the proportion of polyvinyl alcohol in terms of solid content was 7.0 part, thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid for application. With the resulting liquid for applying mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of liquid for application, thereby obtaining the liquid 1 for the application of the second kratkovremennogo layer.

Liquid 1 for applying the first kratkovremennogo layer

[0078] an Aqueous solution of polyvinyl alcohol was added to the colloidal solution of hydrate of alumina so that the proportion of polyvinyl alcohol in terms of solid content was 13,0 parts with respect to 100 parts of the solids content of the hydrate of alumina, thereby preparing a liquid mixture. An aqueous solution of orthoboric acid with containing the s solids to 5.0% by weight, added to the liquid mixture so that the ratio of orthoboric acid in terms of solid content was 5.8 parts relative to 100 parts of the solid content of polyvinyl alcohol in the liquid mixture, thereby preparing liquid 1 for applying the first kratkovremennogo layer.

The formation kratkovremennogo layer

[0079] the Liquid 1 for the application of the second kratkovremennogo layer and the liquid 1 for the application of the first kratkovremennogo layer was applied onto each surface of the substrate. The application was carried out using a device with a sliding feeder for simultaneous deposition of multilayer coatings so that in the dry state first raskopanny layer has a thickness of 25.0 μm, the second raskopanny layer has a thickness of 10.0 μm and the total thickness was compared to 35.0 μm. Subsequently, he carried out the drying at 60°C to obtain the information carrier 1. The resulting media was the media, in which the substrate, the first raskopanny layer, the second raskopanny layer are arranged in this order. On the surface of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 2

[0080] the storage Medium 2 was received as information carrier 1, except that instead of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 used liquid 2 for applying the first kratkovremennogo layer, described below. On the surface of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Liquid 2 for applying the first kratkovremennogo layer

[0081] an Aqueous solution of polyvinyl alcohol was added to the Sol highly dispersed silicon dioxide so that the proportion of polyvinyl alcohol in terms of solid content was 30,0 parts with respect to 100 parts of the solids content of highly dispersed silicon dioxide, thereby preparing a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was added to the liquid mixture so that the ratio of orthoboric acid in terms of solid content was 5.8 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid 2 for applying the first kratkovremennogo layer.

Getting media 3

[0082] the storage Medium 3 received, as well as the information carrier 1, except that instead of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 used liquid 3 for applying the first kratkovremennogo layer, described below. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Liquid 3 for applying the first kratkovremennogo layer

[0083] the Sol hydrate of aluminum oxide and a Sol of fine silicon dioxide were mixed together so that the ratio of the hydrate of aluminum oxide to highly dispersed to silicon oxide in terms of solid content was 25:75, thereby preparing a mixed Sol. An aqueous solution of polyvinyl alcohol was mixed with the mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 25.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash, thereby preparing a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that about Orcia orthoboric acid in terms of solid content was 5.8 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thus prepared liquid 3 for applying the first kratkovremennogo layer.

Getting media 4

[0084] the storage Medium 4 received, as well as the information carrier 1, except that instead of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 used liquid 4 for applying the first kratkovremennogo layer, described below. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Liquid 4 for applying the first kratkovremennogo layer

[0085] the Sol hydrate of aluminum oxide and a Sol of fine silicon dioxide were mixed together so that the ratio of the hydrate of aluminum oxide to highly dispersed to silicon oxide in terms of solid content was 75:25, thereby preparing a mixed Sol. An aqueous solution of polyvinyl alcohol was mixed with the mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 18,0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash, thereby preparing a liquid mixture. Water dissolve the orthoboric acid, having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content was 5.8 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid 4 for applying the first kratkovremennogo layer.

Getting media information 5

[0086] the storage Medium 5 received, as well as the information carrier 1, except that instead of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 used liquid 5 for applying the first kratkovremennogo layer, described below. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Liquid 5 for applying the first kratkovremennogo layer

[0087] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 75:25, thereby preparing a mixed Sol. An aqueous solution of polyvinyl alcohol was mixed with the mixed Sol so that the proportion of polyvinyl alcohol in paresce the e on the solids content was 13,0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes, thereby prepare a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content was 5.8 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid 5 for applying the first kratkovremennogo layer.

Getting media information 6

[0088] the storage Medium 6 received, as well as the information carrier 1, except that instead of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 used liquid 6 for applying the first kratkovremennogo layer, described below. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Liquid 6 for applying the first kratkovremennogo layer

[0089] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 25:75, thereby preparing a mixed Sol. An aqueous solution of polyvinyl alcohol was mixed with slendeslim thus, for the proportion of polyvinyl alcohol in terms of solid content was 13,0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in mixed ash, thereby preparing a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content was 5.8 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid 6 for applying the first kratkovremennogo layer.

Getting media information 7

[0090] the storage Medium 7 received, as well as the information carrier 1, except that coating was carried out so that the second raskopanny layer had a thickness of 5.0 μm, the first raskopanny layer has a thickness of 13.0 μm and the total thickness was 18,0 µm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 8

[0091] the storage Medium 8 received, as well as the information carrier 1, except that caused the tion carried thereby, to the second raskopanny layer had a thickness of 6.0 μm, the first raskopanny layer has a thickness of 14.0 μm and the total thickness was 20.0 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 9

[0092] the information Carrier 9 was received as information carrier 1, except that coating was carried out so that the second raskopanny layer has a thickness of 12.0 μm, the first raskopanny layer has a thickness of 28.0 μm and the total thickness was 40.0 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 10

[0093] the storage Medium 10 received, as well as the information carrier 1, except that coating was carried out so that the second raskopanny layer has a thickness of 13.0 μm, the first raskopanny layer had a thickness of about 30.0 μm and the total thickness was 43,0 mm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. Figured environments is d size of secondary particles, and he found equal to 3.0 μm.

Getting media 11

[0094] the storage Medium 11 was received as information carrier 1, except that coating was carried out so that the second raskopanny layer had a thickness of 2.5 μm, the first raskopanny layer has a thickness of 32.5 μm and the total thickness was compared to 35.0 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Receiving media 12

[0095] the storage Medium 12 received as information carrier 1, except that coating was carried out so that the second raskopanny layer had a thickness of 5.0 μm, the first raskopanny layer had a thickness of about 30.0 μm and the total thickness was compared to 35.0 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 13

[0096] the storage Medium 13 received, as well as the information carrier 1, except that coating was carried out so that the second raskopanny layer has a thickness of 17.5 μm, the first raskopanny layer kaltasin of 17.5 μm, and the total thickness was compared to 35.0 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 14

[0097] the Media information 14 received, as well as the information carrier 1, except that coating was carried out so that the second raskopanny layer has a thickness of 20.0 μm, the first raskopanny layer has a thickness of 15.0 μm and the total thickness was compared to 35.0 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 15

[0098] the storage Medium 15 was received as information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 aqueous solution of orthoboric acid having a solids content of 5% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was of 10.0 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the medium and the measure, one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 16

[0099] the storage Medium 16 was received as information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 aqueous solution of orthoboric acid having a solids content of 5% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 30,0 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 17

[00100] the information Carrier 17 received, as well as the information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 aqueous solution of polyvinyl alcohol having a solids content of 8% by weight, were mixed so that the proportion of polyvinyl alcohol in terms of solid content was equal to 4.0 parts with respect to 100 parts by the total solids content of the hydrate is xida aluminum and aluminum oxide in the mixed ashes. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 18

[00101] the Media information 18 received, as well as the information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 aqueous solution of polyvinyl alcohol having a solids content of 8% by weight, were mixed so that the proportion of polyvinyl alcohol in terms of solid content were 5.0 parts relative to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 19

[00102] the storage Medium 19 received, as well as the information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 aqueous solution of polyvinyl alcohol having a solids content of 8% by weight, was mixed in such the way, for the proportion of polyvinyl alcohol in terms of solid content was of 10.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 20

[00103] the storage Medium 20 received, as well as the information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 aqueous solution of polyvinyl alcohol having a solids content of 8% by weight, were mixed so that the proportion of polyvinyl alcohol in terms of solid content was equal to 11.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 21

[00104] the storage Medium 21 received, as well as media information 1, except that in the preparation of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 2.3 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 22

[00105] the storage Medium 22 was received as information carrier 1, except that in the preparation of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 6.9 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of the secondary h is CI, and he found equal to 3.0 μm.

Getting media 23

[00106] the information Medium 23 was received as information carrier 2, except that in the preparation of liquid 2 for applying the first kratkovremennogo layer of the information carrier 2 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 2.3 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 24

[00107] the storage Medium 24 was received as information carrier 2, except that in the preparation of liquid 2 for applying the first kratkovremennogo layer of the information carrier 2 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 7.0 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the medium and the measure, one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 25

[00108] the storage Medium 25 was received as information carrier 3, except that in the preparation of liquid 3 for applying the first kratkovremennogo layer media 3 an aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 2.4 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 26

[00109] the storage Medium 26 was received as information carrier 3, except that in the preparation of liquid 3 for applying the first kratkovremennogo layer media 3 an aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 6.8 parts with respect to 100 parts by solid content of polyvinyl JV the mouth. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 27

[00110] the storage Medium 27 received as information carrier 4, except that in the preparation of liquid 4 for applying the first kratkovremennogo layer media 4 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 2.2 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 28

[00111] the storage Medium 28 was received as information carrier 4, except that in the preparation of liquid 4 for applying the first kratkovremennogo layer media 4 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in lane the account on the solids content was 6.7 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media information 29

[00112] the storage Medium 29 received as information carrier 1, except that in the preparation of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was of 10.0 parts with respect to 100 parts of the solids content of the hydrate of aluminum oxide. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 30

[00113] the storage Medium 30 received, as well as the information carrier 1, except that in the preparation of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was equal to 11.0 parts with respect to 100 parts of postergenius solid hydrate of aluminum oxide. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 31

[00114] the storage Medium 31 received, as well as the information carrier 1, except that in the preparation of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was 40.0 parts with respect to 100 parts of the solids content of the hydrate of aluminum oxide. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 32

[00115] the storage Medium 32 received as information carrier 1, except that in the preparation of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was 42,0 parts with respect to 100 parts of postergenius solid hydrate of aluminum oxide. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 33

[00116] the storage Medium 33 received as information carrier 2, except that in the preparation of liquid 2 for applying the first kratkovremennogo layer of the information carrier 2 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was of 10.0 parts with respect to 100 parts by solid content, highly dispersed silicon dioxide. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 34

[00117] the storage Medium 34 received as information carrier 2, except that in the preparation of liquid 2 for applying the first kratkovremennogo layer of the information carrier 2 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was equal to 11.0 parts in relation C parts by solid content, highly dispersed silicon dioxide. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 35

[00118] the storage Medium 35 received as information carrier 2, except that in the preparation of liquid 2 for applying the first kratkovremennogo layer of the information carrier 2 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was 40.0 parts with respect to 100 parts by solid content, highly dispersed silicon dioxide. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 36

[00119] the storage Medium 36 received as information carrier 2, except that in the preparation of liquid 2 for applying the first kratkovremennogo layer of the information carrier 2 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was 42,0 part in relation C parts by solid content, highly dispersed silicon dioxide. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 37

[00120] the storage Media 37 received as information carrier 3, except that in the preparation of liquid 3 for applying the first kratkovremennogo layer media 3 an aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was of 10.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 38

[00121] the storage Medium 38 received as information carrier 3, except that in the preparation of liquid 3 for applying the first kratkovremennogo layer media 3 an aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content is wow substances accounted for 11.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 39

[00122] the storage Medium 39 received as information carrier 3, except that in the preparation of liquid 3 for applying the first kratkovremennogo layer media 3 an aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was 40.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 40

[00123] the storage Medium 40 received, as well as information carrier 3, except that in the preparation of liquid 3 for applying the first kratkovremennogo layer media 3 an aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content is wow substances amounted to 42.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 41

[00124] the storage Medium 41 received as information carrier 4, except that in the preparation of liquid 4 for applying the first kratkovremennogo layer media 4 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was of 10.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 42

[00125] the information Medium 42 received as information carrier 4, except that in the preparation of liquid 4 for applying the first kratkovremennogo layer media 4 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content is wow substances accounted for 11.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 43

[00126] the information Carrier 43 received as information carrier 4, except that in the preparation of liquid 4 for applying the first kratkovremennogo layer media 4 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content was 40.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 44

[00127] the storage Medium 44 received as information carrier 4, except that in the preparation of liquid 4 for applying the first kratkovremennogo layer media 4 aqueous solution of polyvinyl alcohol were mixed so that the proportion of polyvinyl alcohol in terms of solid content is wow substances amounted to 42.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and finely dispersed silicon dioxide in mixed ash. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 45

[00128] the storage Medium 45 received, as well as the information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer media 1 mass ratio of hydrate of aluminum oxide to aluminum oxide in terms of solid content was 100:0. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 46

[00129] the storage Medium 46 received, as well as the information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer and the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 instead of the aqueous solution in polyvinyl alcohol used an aqueous solution (solids content: 8,0% by weight) other polyvinyl alcohol (PVA 217, made by Kuraray Co., Ltd., the degree of saponification: 88%, average degree of polymerization: 1700). On surfaces is of osites information measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 47

[00130] the storage Medium 47 received, as well as the information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer and the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 instead of the aqueous solution in polyvinyl alcohol used an aqueous solution (solids content: 8,0% by weight) other polyvinyl alcohol (PVA 424, made by Kuraray Co., Ltd., the degree of saponification: 80%, average degree of polymerization: 2400). On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 48

Liquid 2 for applying the second kratkovremennogo layer

[00131] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, to thereby form a mixed Sol. Obtained using the wet method silica (FINESIL X-37B, the average size of secondary particles: of 3.7 μm, made by Tokuyama Corporation) was mixed with the mixed-Sol thus, to the ratio obtained using the wet method silica, calculated on the solids content was 0.5 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was mixed with the resulting mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 7.0 part, thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer was mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thereby preparing a liquid 2 for applying the second kratkovremennogo layer.

[00132] the storage Medium 48 was received as information carrier 1, except that instead of the liquid 1 for the application of the second kratkovremennogo layer of the information carrier 1 used liquid 2 for applying the second kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 49

Liquid 3 for applying the second kratkovremennogo layer

[00133] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, to thereby form a mixed Sol. Obtained using the wet method silica (FINESIL X-37B, the average size of secondary particles: of 3.7 μm, made by Tokuyama Corporation) was mixed with the mixed Sol so that the ratio obtained using the wet method silica, calculated on the solids content was 5 parts relative to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was added to the resulting mixed Sol so the m way for the proportion of polyvinyl alcohol in terms of solid content was 7.0 part, thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was added to the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer was mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thereby preparing a liquid 3 for applying the second kratkovremennogo layer.

[00134] the storage Medium 49 received, as well as the information carrier 1, except that instead of the liquid 1 for the application of the second kratkovremennogo layer of the information carrier 1 used liquid 3 for applying the second kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles palacenolimit method of silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 50

Liquid 4 for applying the second kratkovremennogo layer

[00135] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, to thereby form a mixed Sol. Mixed Sol was mixed organic particles (crosslinked polymethylmethacrylate MBX-8, the average size of secondary particles of 5.0 μm, made by Sekisui Plastics Co., Ltd.) so that the proportion of organic particles in terms of solid content was 5 parts relative to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was added to the resulting mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 7.0 part, thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was added to the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 Castano the solids content of polyvinyl alcohol in the liquid mixture, thereby prepare a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer was mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thereby preparing a liquid 4 for applying the second kratkovremennogo layer.

[00136] the storage Medium 50 received, as well as the information carrier 1, except that instead of the liquid 1 for the application of the second kratkovremennogo layer of the information carrier 1 used liquid 4 for applying the second kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 5.0 µm.

Getting media 51

Liquid 5 for applying the second kratkovremennogo layer

[00137] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, thereby forming mixed the ol. Obtained by wet silicon dioxide (NIPGEL BY-001, the average size of secondary particles: 20,0 µm, made by Tosoh Silica Corporation) was mixed with the mixed Sol so that the ratio obtained using the wet method silica, calculated on the solids content was 2.0 parts relative to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was added to the resulting mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 7.0 part, thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was added to the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer was mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances sostav the La of 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thus prepared liquid 5 for applying the second kratkovremennogo layer.

[00138] the storage Medium 51 received, as well as the information carrier 1, except that upon receipt krasnopresnya layers of the information carrier 1 instead of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 used liquid 5 for applying the second kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 20.0 microns.

Getting media 52

Liquid 6 for applying the second kratkovremennogo layer

[00139] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, to thereby form a mixed Sol. Obtained using the wet method silica (MIZUKASIL P-707A, the average size of secondary particles of 1.0 μm, made by Mizusawa Industrial Chemicals, Ltd.) mixed mixed Sol so that the ratio obtained using the wet method silica, calculated on the solids content was 2.0 parts relative to 100 parts by the total content of solid substances is of hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was added to the resulting mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 7.0 part, thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer was mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thereby preparing a liquid 6 for applying the second kratkovremennogo layer.

[00140] the storage Medium 52 received, as well as the information carrier 1, except that in the formation krasnopresnya layers of the information carrier 1 instead of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 used the liquid 6 for applying the second kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 1.0 μm.

Getting media 53

[00141] the storage Medium 53 received, as well as the information carrier 1, except that in the formation krasnopresnya layers of the information carrier 1 formed only of the second raskopanny layer having a thickness of 35.0 μm, as a single layer coating. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 54

[00142] the storage Medium 54 received, as well as the information carrier 1, except that in the formation krasnopresnya layers of the information carrier 1 formed only the first raskopanny layer having a thickness of 35.0 μm, as a single coating layer.

Getting media 55

[00143] the storage Medium 55 received as information carrier 2, except that in the formation krasnopresnya layers of the information carrier 2 formed only the first raskopanny layer having a thickness of 35.0 μm, the image quality is as a single coating layer.

Getting media 56

[00144] the storage Media 56 received as information carrier 3, except that in the formation krasnopresnya layers of the information carrier 3 formed only the first raskopanny layer having a thickness of 35.0 μm, as a single coating layer.

Getting media 57

[00145] the storage Medium 57 received as information carrier 4, except that in the formation krasnopresnya layers of the information carrier 4 was formed by only the first raskopanny layer having a thickness of 35.0 μm, as a single coating layer.

Getting media 58

[00146] the information Carrier 58 received, as well as the information carrier 1, except that in the formation krasnopresnya layers of the information carrier 1 liquid 1 for applying the second kratkovremennogo layer and the liquid 1 for the application of the first kratkovremennogo layer was changed places.

Getting media 59

[00147] the storage Medium 59 received, as well as the information carrier 1, except that in the formation krasnopresnya layers of the information carrier 1 aqueous solution of orthoboric acid was not added in the liquid 1 for the application of the second kratkovremennogo layer or the liquid 1 for the application of the first kratkovremennogo slo is. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 60

[00148] the storage Medium 60 received, as well as the information carrier 1, except that in the formation krasnopresnya layers of the information carrier 1 aqueous solution of orthoboric acid was not added in the liquid 1 for the application of the first kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 61

[00149] the storage Medium 61 received, as well as the information carrier 1, except that in the formation krasnopresnya layers of the information carrier 1 aqueous solution of orthoboric acid was not added in the liquid 1 for the application of the second kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 62

[00150] the information Carrier 62 received, as well as the carrier of the information 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 35,7 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 63

[00151] the storage Medium 63 received, as well as the information carrier 1, except that in the preparation of liquid 1 for applying the second kratkovremennogo layer of the information carrier 1 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 9.3 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of the secondary h is CI, and he found equal to 3.0 μm.

Getting media 64

[00152] the information Medium 64 were received as information carrier 1, except that in the preparation of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 1.5 parts relative to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 65

[00153] the storage Medium 65 received, as well as the information carrier 1, except that in the preparation of the liquid 1 for the application of the first kratkovremennogo layer of the information carrier 1 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 7.7 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the medium and the measure, one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 66

[00154] the information Carrier 66 is received as the information carrier 2, except that in the preparation of liquid 2 for applying the first kratkovremennogo layer of the information carrier 2 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 1.7 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 67

[00155] the storage Medium 67 received as information carrier 2, except that in the preparation of liquid 2 for applying the first kratkovremennogo layer of the information carrier 2 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 7.7 parts with respect to 100 parts by solid content of polyvinyl JV the mouth. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 68

[00156] the storage Medium 68 received as information carrier 3, except that in the preparation of liquid 3 for applying the first kratkovremennogo layer media 3 an aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 1.6 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 69

[00157] the data Carrier 69 received as information carrier 3, except that in the preparation of liquid 3 for applying the first kratkovremennogo layer media 3 an aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in lane the account on the solids content was 7.6 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 70

[00158] the storage Medium 70 received as information carrier 4, except that in the preparation of liquid 4 for applying the first kratkovremennogo layer media 4 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in terms of solid content was 1.7 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 71

[00159] the storage Medium 71 was obtained as the storage medium 4, except that in the preparation of liquid 4 for applying the first kratkovremennogo layer media 4 aqueous solution of orthoboric acid having a solids content of 5.0% by weight, were mixed so that the proportion of orthoboric acid in lane the account on the solids content amounted to 7.8 parts with respect to 100 parts of the solid content of the polyvinyl alcohol. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 72

Liquid 7 for applying the second kratkovremennogo layer

[00160] the Aqueous solution of polyvinyl alcohol was mixed with the colloidal solution of hydrate of alumina so that the proportion of polyvinyl alcohol in terms of solid content was 6.8 parts with respect to 100 parts by solid content Zola hydrate of alumina, thereby preparing a liquid mixture. Obtained using the wet method silica (FINESIL X-37B, the average size of secondary particles: of 3.7 μm, made by Tokuyama Corporation) was mixed with the liquid mixture so that the ratio obtained using the wet method silica, calculated on the solids content was 2.0 parts relative to 100 parts by the total solids content of hydrate of alumina in the liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content, was $ 17.7 parts with respect to 100 parts by contents Tverdov the substance of polyvinyl alcohol in the liquid mixture, thereby prepare a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer was mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thereby preparing a liquid 7 for applying the second kratkovremennogo layer.

Liquid 7 for applying the first kratkovremennogo layer

[00161] the Aqueous solution of polyvinyl alcohol was mixed with the colloidal solution of hydrate of alumina so that the proportion of polyvinyl alcohol in terms of solid content was 15,0 parts with respect to 100 parts of the solids content of the hydrate of alumina, thereby preparing a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content was 8.0 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing the liquid 7 for applying the first kratkovremennogo layer.

The formation of the tion kratkovremennogo layer

[00162] the Liquid 2 for applying the second kratkovremennogo layer and the liquid 7 for applying the first kratkovremennogo layer was applied onto each surface of the substrate using a device with a sliding feeder for simultaneously applying a multilayer coating to form an integer of two layers, i.e. the first kratkovremennogo layer and the second kratkovremennogo layer provided on the first krasoprema layer so that the first raskopanny layer had a dry thickness of 20.0 μm, the second raskopanny layer had a dry thickness of 20.0 μm and the total thickness was 40.0 μm. Subsequently, he carried out the drying at 60°C for receiving the information carrier 72. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 73

Liquid 8 for applying the second kratkovremennogo layer

[00163] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, to thereby form a mixed Sol. Obtained using the wet method silica (FINESIL X-37B, the average size of secondary particles: of 3.7 μm, about what svojstva company Tokuyama Corporation) was mixed with the mixed Sol thus, to the ratio obtained using the wet method silica, calculated on the solids content was 0.3 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was mixed with the resulting mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 7.0 part, thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of liquid for coating, thereby preparing a liquid 8 for applying the second kratkovremennogo layer.

[00164] the Media 73 received, as well as the media info the information 1, except that instead of the liquid 1 for the application of the second kratkovremennogo layer of the information carrier 1 used liquid 8 for applying the second kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 74

Liquid 9 for applying the second kratkovremennogo layer

[00165] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, to thereby form a mixed Sol. Obtained using the wet method silica (FINESIL X-37B, the average size of secondary particles: of 3.7 μm, made by Tokuyama Corporation) was mixed with the mixed Sol so that the ratio obtained using the wet method silica, calculated on the solids content was 7.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was added to the resulting mixed Sol so that the proportion of polyvinyl alcohol in terms of with the content of solid matter was 7.0 parts thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was added to the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer was mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thereby preparing a liquid 9 for applying the second kratkovremennogo layer.

[00166] the storage Medium 74 received, as well as the information carrier 1, except that instead of the liquid 1 for the application of the second kratkovremennogo layer of the information carrier 1 used liquid 9 for applying the second kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 75

Liquid 10 for applying the second kratkovremennogo layer

[00167] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, to thereby form a mixed Sol. Obtained using the wet method silica (MIZUKASIL P-707M, the average size of secondary particles: 35,0 μm, made by Mizusawa Industrial Chemicals, Ltd.) mixed mixed Sol so that the ratio obtained using the wet method silica, calculated on the solids content was 2.0 parts relative to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was mixed with the resulting mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 7.0 part, thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content, the floor is vinyl alcohol in the liquid mixture, thereby prepare a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer was mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thereby preparing a liquid 10 for applying the second kratkovremennogo layer.

[00168] the storage Medium 75 received, as well as the information carrier 1, except that instead of the liquid 1 for the application of the second kratkovremennogo layer of the information carrier 1 used liquid 10 for applying the second kratkovremennogo layer. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 25.0 microns.

Getting media 81

The liquid 11 for applying the second kratkovremennogo layer

[00169] the Sol hydrate of aluminum oxide and a Sol of aluminum oxide were mixed together so that the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, thereby forming mixed the th Sol. An aqueous solution of polyvinyl alcohol was mixed with the resulting mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 7.0 parts with respect to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in mixed ash, thereby preparing a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was mixed with the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer was mixed surfactant (trade name: Surfynol 465, manufactured by company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thereby preparing a liquid 11 for applying the second kratkovremennogo layer.

Liquid 1 for the application of the outermost surface layer

[00170] the Sol hydrate of aluminum oxide and a Sol of an oxide of al is MINIA mixed together so to the mass ratio of the hydrate of aluminum oxide to aluminum oxide in terms of solid content was 70:30, to thereby form a mixed Sol. Obtained using the wet method silica (FINESIL X-37B, the average size of secondary particles: of 3.7 μm, made by Tokuyama Corporation) was mixed with the mixed Sol so that the ratio obtained using the wet method silica, calculated on the solids content was 2.0 parts relative to 100 parts by the total solids content of the hydrate of aluminum oxide and aluminum oxide in the mixed ashes. An aqueous solution of polyvinyl alcohol was added to the resulting mixed Sol so that the proportion of polyvinyl alcohol in terms of solid content was 7.0 part, thereby forming a liquid mixture. An aqueous solution of orthoboric acid having a solids content of 5.0% by weight, was added to the liquid mixture so that the ratio of orthoboric acid in terms of solid content amounted to 16.4 parts with respect to 100 parts by solid content of polyvinyl alcohol in the liquid mixture, thereby preparing a liquid for applying the second kratkovremennogo layer. With the resulting liquid for applying the second kratkovremennogo layer, mixed surface-active the e substance (trade name: Surfynol 465, production company Nissin Chemical Industry Co., Ltd.) thus, for the proportion of surface-active substances amounted to 0.1% by weight relative to the total mass of the liquid for applying the second kratkovremennogo layer, thereby preparing liquid 1 for the application of the outermost surface layer.

The formation kratkovremennogo layer

[00171] the Liquid 1 for the application of the outermost surface layer, the liquid 11 for applying the second kratkovremennogo layer and the liquid 1 for the application of the first kratkovremennogo layer was applied onto each surface of the substrate. The application was carried out using a device with a sliding feeder for simultaneous deposition of multilayer coatings so that in the dry state first raskopanny layer has a thickness of 25.0 μm, the second raskopanny layer has a thickness of 10.0 μm, the outermost surface layer has a thickness of 0.12 μm and the total thickness was 35,12 μm. Subsequently, he carried out the drying at 60°C, receiving the storage medium 81. The storage medium 81, obtained by the above operation, includes a substrate, first raskopanny layer, the second raskopanny layer and the outermost surface layer provided in this order from the substrate. On the surfaces of the media was measured one hundred randomly selected particles obtained the CSO wet method silica. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 82

[00172] the storage Medium 82 received, as well as the storage medium 81, except that the outermost surface layer has a thickness of 0.2 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 83

[00173] the storage Medium 83 received, as well as the storage medium 81, except that the outermost surface layer had a thickness of 1.5 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 84

[00174] the storage Medium 84 received, as well as the storage medium 81, except that the outermost surface layer had a thickness of 2.0 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

Getting media 85

[00175] Media info is rmacie 85 received, as the storage medium 81, except that the outermost surface layer has a thickness of 5.0 μm. On the surfaces of the media was measured one hundred randomly selected particles obtained by wet silicon dioxide. To calculate the average size of secondary particles, and it is found equal to 3.0 μm.

[00176] In tables 1-3 shows the compositions of media 1-85. In tables 1-3 the term "entire layer" means all cracovienne layers, including the first raskopanny layer and the second raskopanny layer (in the case where the outermost surface layer is provided separately from the second kratkovremennogo layer, the term "entire layer" includes the outermost surface layer).

Assessment

Cracking after coating

[00177] the Surface krasnopresnya layers of the resulting media was observed visually. Cracking media after coating was evaluated based on the following criteria. The results from each of the storage media described in tables 4-6.

5: Cracks are not observed.

4: there are tiny cracks that are not visible to the naked eye.

3: In some places, see what I cracks, visible to the naked eye.

2: On the whole there is a lot of cracks that are visible to the naked eye.

1: there are numerous large cracks, and cracovienne layers is partially separated from the substrate.

Resistance to cracking when bent

[00178] Each of the resulting media was formed in the sheet of A4 paper. Solid black image was formed on the entire surface of the recording using an inkjet printer (trade name: MP990, manufactured by CANON KABUSHIKI KAISHA). Printed media folded in the middle so that the printed surface was folded inside. Put a load of 500 kg to the media with a press for 5 minutes to make a crease. The operation of opening and closing bent media was carried out 20 times. The bent portion was visually checked and evaluated based on the following criteria. The evaluation results are described in tables 4-6.

5: White stripe is not visible.

4: White stripe slightly visible.

3: the White stripes visible in some degree.

2: the White stripes clearly visible.

1: Wide white stripe clearly visible.

The ability to absorb paint

[00179] a Solid green image formed on the recording surfaces of each of the obtained in achiev is Tate media using an inkjet printer (trade name: MP990, manufactured by CANON KABUSHIKI KAISHA, print mode: Canon Photo Paper Gloss Gold, no color correction). The printed portion was visually observed and evaluated based on the following criteria. The evaluation results are described in tables 4-6.

5: the Solid image has almost no uneven parts.

4: the Solid image has a few uneven parts.

3: the Solid image has a bit uneven parts.

2: the Solid image has a lot of uneven parts.

1: Paint spreads on the solid image.

The density of the image

[00180] a Solid black image was formed on the surfaces of each of the received media using an inkjet printer (trade name: MP990, manufactured by CANON KABUSHIKI KAISHA, print mode: Canon Photo Paper Gloss Gold, no color correction). The optical density of the solid image was measured optical reflective densitometer (trade name: 530 spectrodensitometer, manufactured by X-Rite) and evaluated based on the following criteria. The evaluation results are described in tables 4-6.

5: 2,20 or more

4: 2,15 or more and less than 2,20

3: 2,10 or more and less than 2,15

2: 2.00 or more and less than 2,10

1: less than 2,00

The ease of turning by hand

[00181] Received twenty l of the specialists of the information carrier 1. Twenty sheets of media 1, each of which had dimensions of 10 cm × 10 cm, folded in a stack and connected on the one hand. Easy-turn media was assessed by inverting the media one by one from the end on the unconnected side. The same operation is also carried out for other media. The ease of turning evaluated based on the following criteria. The evaluation results are described in tables 4-6.

5: Sheets of media have a very high sliding properties and turn over very easily.

4: Sheets of media have a high sliding properties and turn over with a noticeable ease.

3: Sheet media roll easily.

2: Sheets of media have a low sliding properties and are prone to sticking together, so flip the sheets hard.

1: Sheets of media have a poor sliding properties and show a strong tendency to sticking together, so that the leaves turn very difficult.

Gloss at 20°

[00182] the gloss of each entry of the resulting media at 20° was measured using a measuring apparatus (model: VG 2000, manufactured by Nippon Denshoku Industries Co., Ltd). The gloss was evaluated based on the following criteria. The results of the evaluation are described in tables 4-6.

5: gloss at 20° is 30 or more.

4: gloss at 20° is 25 or more and less than 30.

3: gloss at 20° is 20 or more and less than 25.

2: gloss at 20° is 15 or more and less than 20.

1: gloss at 20° is less than 15.

Table 5
MediaThe result of evaluating
The cracking of the coated surfaceResistance to cracking when bentThe ability to absorb paintThe optical densityThe ease of turning by handGloss at 20°
Ave. 3838445444
Ave. 39395544 44
Ave. 4040553344
Ave. 4141335444
Ave. 4242445444
Ave. 4343554444
Ave. 4444553344
Ave. 45455 53444
Ave. 4646335544
Ave. 4747335444
Ave. 4848555534
Ave. 4949555553
Ave. 5050555553
Etc. 5151555553
Ave. 5252555553
Cf. Ave 153115544
Cf. Ave 254552215
Cf. Ave 355541212
Cf. Ave 456541 113
Cf. Ave 557542214
Cf. Ave 658511244
Cf. Ave 759121344
Cf. Ave 860122344
Cf. other 961222344
Cf. Ave 1062 525544
Cf. Ave 1163352444
Cf. other 1264222444
Cf. other 1365525544
Cf. other 1466123344
Cf. Ave 156751544 4
Cf. other 1668223344
Cf. other 1769515444
Cf. other 1870223444
Cf. other 1971515444
Cf. other 2072525553
Cf. Ave 217334 5514
Cf. other 2274345551
Cf. other 2375555551

Table 6
MediaThe result of evaluating
The cracking of the coated surfaceResistance to cracking when bentThe ability to absorb paintThe optical densityThe ease of turning by handGloss at 20°
Ave. 538155 545
Ave. 5482555555
Ave. 5583555555
Ave. 5684555555
Ave. 5785555554

[00183] Although the present invention has been described with reference to exemplary embodiments of the implementation, it should be understood that the invention is not limited to the disclosed exemplary embodiments of the implementation. The volume of the following claims must meet the Shire is some interpretation, however, to cover all such modifications and equivalent structures and functions.

1. The media consistently contains:
substrate;
first raskopanny layer; and
second raskopanny layer,
the first raskopanny layer contains
at least one inorganic pigment selected from the group consisting of aluminum oxide, hydrate of aluminum oxide and finely dispersed silicon dioxide,
polyvinyl alcohol and
boric acid, and
second raskopanny layer contains
at least one inorganic pigment selected from the group consisting of aluminum oxide and hydrate of alumina,
polyvinyl alcohol and
boric acid,
the content of boric acid in the first krasoprema layer is 2.0% by mass or more and 7.0% by mass or less with respect to the content of polyvinyl alcohol in the first krasoprema layer and
the content of boric acid in the second krasoprema layer is 10.0% by mass or more and 30.0% by mass or less with respect to the content of polyvinyl alcohol in the second krasoprema layer,
when the outermost surface layer of the storage media contains particles having an average size of secondary particles of 1.0 μm or more and 20.0 μm or less,
the content of particles having an average size of secondary particles of 1.0 μm Il is more and 20.0 μm or less, is 0.5% by mass or more and 5.0 mass% or less with respect to the content of the inorganic pigment in the outermost surface layer.

2. The information carrier according to claim 1, with the second raskopanny layer is the outermost surface layer of the recording media.

3. The information carrier according to claim 1, with the outermost surface layer of the media is more removed from the substrate than the second raskopanny layer.

4. The information carrier according to any one of claims 1 to 3, and the substrate is a water-resistant substrate obtained by coating the paper base polymer.

5. The information carrier according to any one of claims 1 to 3, and the particles having an average size of secondary particles of 1.0 μm or more and 20.0 μm or less, consist of the obtained wet method silica.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: method of instrument marking includes formation of an instrument 10, performing a depressed marking 15 in the instrument 10, quenching of the instrument 10, coloration of the instrument 10 in order to create a colour layer 20 on the instrument 10 in the depressed marking 15 and near it, cleaning the instrument 10 from excess of the colorant, overflowing the depressed marking 15, coloration of the instrument 10 into black colour to create a coloured black layer 40 on the instrument 10, except for the depressed marking 15, and painting the instrument 10 to form a transparent layer of paint 50 on the instrument to create luster and prevent rust.

EFFECT: marking is clear, and the applied coating protects the instrument from rust.

9 cl, 8 dwg

FIELD: printing.

SUBSTANCE: present invention relates to a sheet for printing having improved drying time of the image. The sheet for printing comprises a substrate comprising lignocellulosic fibres, and at least 0.02 g/m2 of a water soluble divalent metal salt which is applied by a gluing press. The test value of gluing Hercules ("HST") of the substrate is about from 3 seconds to 300 seconds. The HST value and the amount of divalent metal salt is selected so that the sheet for printing has a percentage of ink transfer ("IT%") equal or less than about 60.

EFFECT: proposed sheet for printing provides improved drying time of the image.

27 cl, 6 dwg, 10 tbl, 4 ex

FIELD: printing.

SUBSTANCE: invention relates to recording sheets used in printing processes. The recording sheet comprises a substrate of the web of cellulosic fibres and the sizing composition. The sizing composition comprises a binder and a divalent metal salt. The said salt in a concentration of at least 51% of the total concentration and not less than 2500 parts per million is located at a distance within 25% of the total substrate thickness from at least one surface of the said substrate. At that the recording sheet has Qtotal as a measure of the amount of the sizing agent in the transition from the outer edges towards the middle of the sheet in cross-section of less than 0.5. Also a method of production of the recording sheet is described.

EFFECT: said substrate and the sizing agent interact with formation of the I-shaped structure of the recording sheet which provides an optical density of black printing of at least 1,15.

20 cl, 15 dwg, 2 tbl, 10 ex

FIELD: printing.

SUBSTANCE: invention relates to a method of manufacturing a security or valuable document, which includes the following steps: B) multilayer material is produced, which comprises a paper substrate, a masking layer provided on the paper substrate in the masking area, and marking substance modified by laser radiation, provided in the marked area, at that the marked area covers the masking area, and L) the multilayer material in the marked area is subjected to laser action in order to create the negative signs in the masking area simultaneously in register and discolored signs on unmasked areas of the marked area. At that before performing the step L) on the masking layer at least in the marked area the recesses are made in the form of patterns, signs or a code.

EFFECT: invention provides a high degree of protection against forgery.

25 cl, 22 dwg

FIELD: printing.

SUBSTANCE: invention relates to the field of advertising, printing and photography, and is intended to produce high-strength images on metal products, in particular, on the surface of titanium products, and can be used in various fields of industry, arts and crafts. The method includes obtaining an image on the intermediate base, the image transfer on the surface of the product, high temperature burning of the product with the printed image in the oven. As the product for transferring image the titanium sheet is used. Before applying image the titanium sheet is subjected to high temperature burning at a temperature of 890-1020°C to form on its surface of a layer of the titanium oxide uniform in thickness, exposed by this temperature for 15-90 minutes. The burning temperature is selected depending on the desired shade of coloring of the oxide layer, and the exposure time - depending on its desired thickness, the image transfer is carried out on the surface of the obtained titanium oxide layer, and a high temperature burning of the product with the applied image is carried out at a temperature of 550±15°C.

EFFECT: increasing longevity of the images obtained, simplification and reduction of cost of the technologic process of their preparation, as well as the high artistic quality of the image to produce its various shades.

8 cl

FIELD: textiles, paper.

SUBSTANCE: composition comprises a mixture of one of the two porous stable aggregates and precipitated calcium carbonate (PCC) called grade B OCC or grade C OCC, in combination with the second OCC of non-equal-faced type (OCCNT) - the pigment of fine grinding. The ratio of grade B OCC or grade C OCC and OCC of non-equal-faced type OCCNT is selected in the range from 90/10% to 10/90% by dry weight. The content of dry weight of pigments is selected in the range from 0.3% to 5.0% by dry weight of the finished paper product. Depending on the granulometry of two OCC of fine grinding the said mixture may contain a pigment and/or filler of coarser grinding. The main criterion of selection of the pigment of "coarser grinding" is that it should have a granulometry which does not have influence on the significant deviation in the number of particles smaller than 0.2 microns, preferably less than 0.3 microns, more preferably less than 0.5 micron, the most preferably less than 1 micron.

EFFECT: composition enables to eliminate the print-through through the layer of light thin paper such as newsprint and to improve the technical properties of the paper sheet.

24 cl, 4 dwg, 1 tbl, 8 ex

FIELD: process engineering.

SUBSTANCE: invention relates to marking of products and goods in various industries. Proposed method consists in application of hidden thread for marking of the product by applying it on the product or its package. Note here that hidden white and hidden black threads are used to be twisted at a time in various combinations with common threads of cotton, flax, silk, synthetic fibers to be sensed by touch.

EFFECT: simple marking, possibility of tactile sensation.

2 cl, 5 dwg

FIELD: printing industry.

SUBSTANCE: proposed invention is designed for protection against counterfeit of packages and other items. Cryptography on the colourless transparent polymer film with the possibility of multiple positive-negative reading of information by means of application of information symbols onto the film with the help of local thermal impact and observation at different angle or in a clear space. Application of information is carried out through usage as a polymer film of unixially oriented rigid elastic polyolefin film, local thermal impact under pressure with subsequent deformation of elastic stretching along the axis of orientation.

EFFECT: proposed invention simplifies production of invisible images on a carrier with provision of high extent of counterfeit protection.

3 cl, 3 dwg, 4 tbl, 6 ex

FIELD: metallurgy.

SUBSTANCE: composition for marking of metal products produced by powder metallurgy method includes not more than 50% of wt % of luminophor and 50 wt % and more of binding-lubricating agent being fatty acid derivatives or powders of synthetic wax and/or paraffin. Marking of metal products by this composition consists in mixing of alloy metal powder with marking composition, which consists of at least one inorganic agent with property to provide luminescence at irradiation and binding-lubricating agent with subsequent pressing of obtained mixture and its sintering at temperature not exceeding 900°C.

EFFECT: possibility of products marking during their production by powder metallurgy method, simplifying marking technology and providing safety.

15 cl, 1 dwg, 8 ex

Recording medium // 2492058

FIELD: printing.

SUBSTANCE: invention relates to a recording medium. The recording medium comprises a substrate and a layer that receives ink deposited on the substrate, in which the arithmetic mean roughness Ra of the outer surface of the recording medium as specified in JIS B 0601:2001, is 1.1 mcm or more and 2.5 mcm or less, and the asymmetry Rsk of the roughness curve of the outer surface of the recording medium as specified in JIS B 0601:2001, is 0.1 or less.

EFFECT: invention provides creation of a recording medium capable of suppression of occurrence of ink acceptance, reduction of visibility of scratches on the outermost surface of the recording medium, and suppression of occurrence of the speckled structure on the image during recording.

7 cl, 12 ex, 2 tbl

FIELD: paper-and-pulp industry.

SUBSTANCE: when ground paper is manufactured, it is coated with ink-accepting coating. The latter contains latex binder, water-soluble binder, pigment mixture of amorphous silica with colloidal cationic silica and colloidal alumina, and ink-fixing agent. Coating operation is performed in two steps, weight ratio of coating applied in the first step to that in the second step ranging from 0.34:1 to 0.66:1. Reverse face of base paper is coated by detwisting coating. Further, coating is ennobled via superglazing at pressure in supercalender roll gap 30-75 bar.

EFFECT: improved workability of process and improved quality of paper due to increased surface strength.

4 cl, 7 ex

FIELD: polygraphy.

SUBSTANCE: one invention from a group is related to printing base, being a substrate with oleophilic surface, having Gurley-Hill porosity value greater than 5000s/100ml, while printing paint, imprinted on such base, has offset value of printing paint IGT with delay time 30s, equal to more than 0,60 printing density units. Another invention is related to printing method, which is performed in at least one printing section with use of substrate, having oleophilic surface and being not porous with Gurley-Hill porosity value over 5000s/100ml, and carrier of pigment of printing paint, having value of offset of printing paint IGT with delay time 30s, equal to more than 0,60 printing density units.

EFFECT: improved quality of printing, improved quality of folding, decreased static electricity.

2 cl, 6 dwg, 3 tbl

FIELD: pulp-and-paper industry.

SUBSTANCE: coating composition consisting of ink-compatible pigment, water-soluble binder, and cationic fixative is deposited onto one of the sides of based paper and the other side is covered with detwisting coating, after which glossy surface is formed. Coating composition is supplemented by wettability controlling agent based on polydimethylsiloxane resins in amounts 0.4 to 1.6% of the weight of pigment. Water-soluble binder is a mixture of polyvinyl alcohol with polyvinylpyrrolidone at ratio (90-50):(10-50) in amount 40-60% and styreneacrylic latex in amount 15-20% of the weight of pigment. When forming glossy surface, polyethylene oxide-based plasticizer is used in amount 7-15% of the weight of pigment followed by supercalendering at pressure in roll contact zone 20-25°C and temperature 50-90°C.

EFFECT: improved manufacturability of process.

5 cl, 1 tbl, 54 ex

FIELD: pulp-and-paper industry.

SUBSTANCE: coating composition consisting of ink-compatible pigment, binder, and cationic fixative is deposited onto one of the sides of based paper and the other side is covered with detwisting coating, after which coating is ennobled by means of supercalendering. As pigment, mixture of amorphous silicon dioxide with calcium carbonate or kaolin with outer specific surface 60-85 m2/g at ratio (25-50):(75-50). Binder is a mixture of polyvinyl alcohol with latex selected from class of styreneacrylic copolymers at ratio (20-25%):(7-18%) based on the weight of pigment. Cationic fixative is poly(diallyldimethylammonium chloride), which is directly incorporated into coating composition in amount 5-10%.

EFFECT: enabled image quality and paper surface strength control.

3 cl, 1 tbl, 13 ex

FIELD: method and device for colored flexography.

SUBSTANCE: method for applying multiple paint layers onto a substrate includes following stages: application onto a substrate of at least one painting layer of energy-hardened liquid paint with viscosity less than approximately 4000 centipoises, and including reaction-incapable paint thinner, where applied layer of energy-hardened paint has first viscosity; evaporation of at least a part of reaction-incapable paint thinner from applied paint layer for increasing viscosity of applied layer of energy-hardened paint; application onto substrate and applied layer of energy-hardened paint with increased viscosity of at least one layer of non energy-hardened liquid paint, viscosity of which is less than increased viscosity of previously applied layer of energy-hardened paint; and drying of both paint layers on the substrate. Another variant of method for applying multiple paint layers onto a substrate is differentiated by applied layer of energy-hardened paint having to be of increased viscosity compared to following layer of energy-hardened liquid paint with viscosity less than approximately 4000 centipoises, and containing reaction-incapable paint thinner, where viscosity of following layer is less than increased viscosity of energy-hardened paint layer applied beforehand. Also a method is suggested for printing multiple paint layers on a substrate, which includes stage of selection of first and second energy-hardened liquid flexography paint, where each paint contains viscosity controlling reaction-incapable paint thinner, consisting of water in amount of from 5% to 50% of thinner weight, where each paint has viscosity approximately ranging from 30 to 70 centipoises, and stage of serial application of first and second energy-hardened liquid flexography paint onto a substrate to create first and second paint layers, having overlapping parts, where second paint is applied only after at least a part of paint thinner is evaporated in first paint layer. Device for serial application of multiple overlapping paint layers onto a substrate contains substrate route and substrate drive for moving the substrate along a route, where paint application sections are adapted for applying paint onto substrate, which paint includes reaction-incapable paint thinner and has viscosity less than 4000 centipoises, and also management system, which manages transportation of substrate along a route. Viscosity of first layer of liquid paint, applied onto a substrate in one of paint sections, is increased due to evaporation of at least a part of paint thinner from first paint layer to higher viscosity compared to viscosity of second paint, applied on top of first paint layer in next paint section, located at a certain distance from first paint section, up to viscosity, sufficient for "crude" application of second liquid paint layer during transportation of substrate between paint sections.

EFFECT: in suggested methods, relief printing is achieved without insignificant modifications of printing equipment.

4 cl, 2 dwg

FIELD: printing materials.

SUBSTANCE: invention relates to printing ink containing first colorant and second colorant, at least one of the colorants including fluorescent color. First and second colorants are located separately on a printing medium while printing ink ensure obtaining printed image with improved fluorescent properties. Invention further relates to printed image and a method of forming printed image utilizing such ink. Invention solves the problem of reducing fluorescence and improving fluorescent properties by way of separating fluorescence region and colored region as well as by way of formation of area on printing medium wherein points of coagulated first colorant are spread in the region of fixed second colorant so that absorption of fluorescent emission energy from fluorescent colorant is considerably reduced by coexisting colorant involving corresponding technologies. The latter are based on a novel technical conception residing in improvement of characteristics of fluorescent emission of a second colorant used in printing ink including a first fluorescent colorant, which, being excited at specified excitation wavelength, fluoresces within specified wavelength range.

EFFECT: improved fluorescent properties of printed image.

15 cl, 31 dwg, 4 tbl, 33 ex

FIELD: polymer coatings.

SUBSTANCE: invention relates to using powder composition to coat jet printing materials utilized as visual information carriers. Powder composition contains (i) one or several powder silane-containing polyvinyl alcohols based on copolymers of fully or partially hydrolyzed esters having degree of hydrolysis from 75 to 100 mol % and (ii) one or several water re-dispersible polymer powders based on homopolymers or copolymers of one or several monomers selected from group including nonbranched or branched C1-C15-alkylcarboxylic acid vinyl esters, (meth)acrylic acid esters with C1-C15-alcohols, vinylaromatic compounds, olefins, dienes, and vinyl halides.

EFFECT: enabled manufacture of wear-resistant coatings to coat both paper and polymeric substrates, avoided undesired increase in viscosity during composition preparation procedure, and enabled more flexible variation in contents of solids in chalking mass.

10 cl, 15 ex

FIELD: chemistry.

SUBSTANCE: invention pertains to ink for an ink-jet printer. Description is given of the ink for an ink-jet printer, containing 62-77 mass % water, 10-18 mass % dye, X (%), water soluble organic substance 1 and 2.0-15 mass %, Y (%), water soluble organic substance 2. Viscosity of the ink ranges from 1 to 5 cP at 25°C, content X (%) of substance 1 and content Y (%) of substance 2 satisfies the relationship in formula (I) and formula (II): (I) 0.15 ≤ Y/X ≤ 0.9; (II) 15 mass % ≤ X+ Y ≤ 32 mass %. Compound 1 is a water-retaining water soluble organic compound, with difference between the water-retention capacity in a surrounding medium at 23°C and humidity of 45% and water-retention capacity in a surrounding medium at 30°C and 80% humidity at 36% or less. Compound 2 is a water soluble organic compound, different from the dye and from the water soluble organic compound 1.

EFFECT: proposed ink sufficiently suppresses the effect of twisting printing material and provides for stable injection.

26 cl, 6 dwg, 6 tbl, 21 ex

FIELD: polygraphy.

SUBSTANCE: invention relates to water-based printing dye used in the set of reaction liquid with water-based printing dye for image formation. The water-based printing dye is proposed making a part of the system using a reaction liquid including, at least, a polyvalent metal and water-based printing dye comprising, at least a pigment dispersion wherein the pigment is dispersed in anionic polymer disperser. Here note that the water-based printing dye meets the specified requirements.

EFFECT: production of a stable jet printing irrespective of the printing conditions, formation of uniform image with a high resistance to deterioration, clear image even in two-side printing, high-quality image sharpness.

18 cl, 1 tbl, 10 ex

FIELD: polygraphy.

SUBSTANCE: invention relates to water-based printing dye used in the set of reaction liquid with water-based printing dye for image formation. The water-based printing dye is proposed making a part of the system using a reaction liquid including, at least, a polyvalent metal and water-based printing dye comprising, at least a pigment dispersion wherein the pigment is dispersed in anionic polymer disperser. Here note that the water-based printing dye meets the specified requirements.

EFFECT: production of a stable jet printing irrespective of the printing conditions, formation of uniform image with a high resistance to deterioration, clear image even in two-side printing, high-quality image sharpness.

18 cl, 1 tbl, 10 ex

Up!