Registration sheet with improved printing quality at low levels of additives. RU patent 2517511.

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 Q_total 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

The technical field

The present invention relates to the registration lists, for example, the recording sheets on a paper basis with superior print quality. The invention also relates to a method of manufacture and the ways to use the recording sheets. Although they are suitable for use in any process of printing, recording sheets are especially suitable for processes inkjet printing.

Description of technology

The paper base with the so-called structure of the "I-beam", developed recently and reportedly have improved volume rigidity and/or high dimensional stability. See, for example, a patent application US 2004/0065423, published 8 April 2004, in which revealed a three-layer sheet with double t structure, which has pulp and Central layer and the upper and lower layers of coatings, soaked starch sizing press. See also patents of USA 2008/0035292, published on 14 February 2008, in which disclosed the paper base with high dimensional stability at high gluing surface and low internal sizing.

Calcium chloride currently use in inkjet media registration for improving density inkjet printing and drying time. See, for example, a patent application US 2007/0087138, published on 19 April 2007, which revealed the registration sheet with improved drying time image, which contains the soluble salts ferrous metals. In inkjet media registration are other metal salts. In the U.S. patent 4,381,185 disclosed paper, which contains multi-charged metal cations. In the U.S. patent 4,554,181 revealed the recording sheet for inkjet printing with the recording surface, which contains salt polyvalent metal. In the U.S. patent 6,162,328 disclosed gluing of paper to the framework for inkjet printing, which includes cation salts of metals. In the U.S. patent 6,207,258 revealed a compound for the treatment of the substrate surface inkjet, which contains salt of ferrous metal. In the U.S. patent 6,880,928 disclosed paper recording basics inkjet, coated, which includes salt polyvalent metal. The authors of the present invention found that the use of calcium chloride can be problematic. High levels of calcium chloride can cause problems with passing in paper machines; calcium chloride is undesirable extinguishes optical Brightener based on stilbene, which is often used in sizing press, and calcium chloride affects pH compositions used in size presses. Starches used in the sizing press, require a narrow range of pH values to be effective: too high pH may cause yellowing of starch; too low pH may cause sedimentation and gelation starch. Calcium chloride can also interact with other chemicals used in the wet end, when the paper is shredded or processed.

Thus, there is a need for registration sheet that keeps improved density inkjet printing and other benefits, but which does not have problems passing and influence on the composition related to the presence of calcium chloride.

DISCLOSURE OF THE INVENTION

These and other problems are solved by the present invention. Surprisingly, the authors of the present invention found that the registration sheet that contains at least one water-soluble salt of ferrous metal and I-structure has significantly improved the amount of color coverage, density ink jet and several other advantages mentioned in this document. These benefits cannot be predicted. Without reference to theory we believe that effective surface concentration of soluble salts ferrous metals increases with I-structure, and the increased effective surface concentration in combination with the I-structure allows to reduce the total number of supplements to the registration sheet, without prejudice to its characteristics. Other benefits include reduced the transfer of ink immediately after printing, high density black image and improved sharpness of the edges of the image when printing with pigmented inks.

One variant of the implementation of the present invention is desirable reaches equal or better the print density and drying time at a much lower levels of metal salts. In one embodiment of the present invention are smaller amounts metal salts, such as calcium chloride; achieved improved parameters of work of the paper machine, and we wish reduced interaction with other chemicals in the manufacture of paper. Other advantages of the present invention are reduced amounts of additives in the paper machine, which improves the operation parameters of the paper machine and reduces costs without compromising performance.

In another embodiment, the authors of the present invention found that the addition of surface pigments, such as ground calcium carbonate (ICC), precipitated calcium carbonate (COC) and others, synergistically enhances the amount of color coverage and drying time.

BRIEF DESCRIPTION OF DRAWINGS

Different ways of implementing the present invention described in connection with the attached drawings, in which:

Figure 1 shows the estimated using optical microscope penetration of starch in comparative and illustrative embodiments of the present invention.

Figure 2 shows estimated using optical microscope penetration of starch in the I-structure for illustrative options for the implementation of the examples.

Figure 3 - a graph showing the results of the colour coverage for illustrative pigmented and non pigmented options for the implementation at different pressure contact zones loaded quantities of pigments and loaded quantities of salts ferrous metals.

Figure 4 - a graph showing the results of the colour coverage for illustrative and comparative options for the implementation of the examples.

Figure 5 is a chart showing the average color coverage on the y-axis for comparative and illustrative options for the implementation of the examples.

6 is a graph showing the average color coverage on the y-axis for comparative and illustrative options for the implementation of the examples.

7 - a graph showing the average color coverage on the y-axis for comparative and illustrative not pigmented options for the implementation of the examples.

Fig is a chart showing the average color coverage on the y-axis for comparative and illustrative containing pigment options for the implementation of the examples.

Figure 9 - a graph showing the average density of the black y-axis and comparative illustrations containing and not containing pigment options for the implementation of the examples.

Figure 10 - a graph showing the average density of black on the y-axis for comparative and illustrative containing and not containing pigment options for the implementation of the examples.

11 - a graph showing the average density of black on the y-axis for comparative and illustrative containing and not containing pigment options for the implementation of the examples.

Fig is a chart showing the average color coverage on the y-axis for comparative and illustrative containing and not containing pigment options for the implementation of the examples.

Fig is a chart showing the average color coverage on the y-axis for comparative and illustrative containing and not containing pigment options for the implementation of the examples.

Fig is a chart showing the average black density/density inkjet printing on the y-axis for comparative and illustrative containing and not containing pigment options for the implementation of the examples.

Fig is a chart showing the average black density/density of paint on the y-axis for comparative and illustrative containing and not containing pigment options for the implementation of the examples.

DETAILED DESCRIPTION OF SEVERAL METHODS OF IMPLEMENTING

The authors of the present invention found a way to achieve equal or superior density print/drying time when much more smaller quantities of additives, in some cases at levels of application (absorption = pounds per ton), which range from half to one third of the amounts that are commonly used in sizing press. The authors of the present invention to the surprise found that effective surface concentration of soluble salts ferrous metals such as calcium chloride, can be saved or improved by the introduction containing salt glue in I-beam structure. Also it was found that further addition of surface pigments, such as the ICC, the OCC and other, synergistically enhances the amount of color coverage and drying time.

The formation of an I-structure is best done in a dosed sizing press, such as with dozer blade, usually using compositions with high content of solid substances, scrapers smaller volume control plucking and optimum pressure in the contact zone to prevent compression paper. This way is convenient to control applying adhesive and maintain the integrity of I-beam structure.

The high content of solid particles, lower absorption or increased viscosity of the composition size press allows you to change the pressure in zones of contact with less impact.

Registering a worksheet can contain the "effective number of soluble salts ferrous metal in contact with at least one surface of the basis. Used herein, the term "effective number" specifies the amount, which is sufficient for the formation of I-beam structure with a suitable adhesive or to improve the drying time of the image. This total soluble salts ferrous metal basis can change in wide limits, provided that maintained or achieved desirable I-beam structure. Usually this amount is at least 0.02 g/m 2 , although you can use a lower or higher value. The number of soluble salts ferrous metal preferably is approximately 0.04 g/m 2 to 3 g/m 2 , including all values and ranges between these values, including 0,04, 0,05, 0,06, 0,07, 0,08, 0,09, 0,1, 0,2, 0,3, 0,4, 0,5, 0,6, 0,7, 0,8, 0,9, 1, 1,5, 2, 2,5 and 3 g/m 2, or any combination, and it is most preferable approximately 0.04 g/m 2 up to 2.0 g/m 2 . In the best options for implementation of a number of water-soluble salts divalent metal preferably is approximately 0.04 g/m 2 up to 1.0 g/m 2 . In the implementation of the present invention can be used with any water soluble salt of ferrous metal. Suitable soluble salts ferrous metal include, without limitation, the compounds containing divalent calcium, magnesium, barium, zinc, or any combination. Opposite ions (anions) can be simple or complex and can vary widely. Examples of such materials are calcium chloride, magnesium chloride and calcium acetate. Preferred water-soluble salts ferrous metal for the practical implementation of the present invention are water-soluble salts of calcium, especially calcium chloride. In one embodiment, salt ferrous metal can be salt mineral or organic acid from the divalent cation of metal or a combination of both. In one embodiment, the water-soluble salt of metal may include halogen, nitrate, chlorate, ammonium sulphate, acetate, carboxylate, hydroxide, sodium nitrite, etc. or a combination with calcium, magnesium, barium, zinc (II), etc. or a combination of them. Some examples of salts ferrous metals include, without limitation, calcium chloride, magnesium chloride, bromide, magnesium, bromide, calcium, barium chloride, calcium nitrate, magnesium nitrate, barium nitrate, calcium acetate, magnesium acetate, barium acetate, an acetate calcium-magnesium, calcium propionate, propionate magnesium, propionate barium, calcium formate, 2-ethylbutyl calcium, calcium nitrite, calcium hydroxide, zinc chloride, zinc acetate and their combinations.

Possible mixtures or combinations of salts ferrous metals, different anions or both. The relative weight of the divalent cation of metal salts ferrous metal can be maximized with respect to the anion in salt, to ensure increased efficiency on the basis of the total mass of used salt. Therefore, for this reason, for example, calcium chloride is preferred than calcium bromide. Equal to the properties of the print are expected, when in the paper are of the same doses of bivalent cations of metals salts ferrous metals, expressed in moles.

In one embodiment, salt ferrous metal soluble in the number used in the water songs for proklejki. In one embodiment, it is soluble at a pH of approximately 6 to 9. Water sizing environment can be in the form of water solution, emulsions, dispersions, latex, colloidal structure, and is used here, the term "emulsion", in the usual meaning in this area, mean or the variance type liquid-to-liquid or type of solid-to-liquid, as well as latex or colloid composition.

In one embodiment, the solubility of salts ferrous metal in water can vary from slightly or moderately soluble up soluble measured on the saturated aqueous solution of salt ferrous metal at room temperature. Solubility in water can range from 0.01 mol/l or more. This range includes all the values and sub-bands, including 0,01, 0,05, 0,1, 0,5, 1, 1,5, 2, 5, 7, 10, 15, 20, 25 mol/l and above. In one embodiment, the solubility of salts ferrous metal in water is 0.1 mol/l or higher.

The paper base contains a set of cellulose fibres. Type of cellulose fibre is not critical, and you can use any such fiber, known or suitable for use in the manufacture of paper. For example, the basis can be made from the fibers of wood pulp obtained from deciduous trees, conifers, or a combination of deciduous and coniferous trees. Fiber can be prepared for use in a composition for manufacturing paper by one or more well-known operations cooking, refining and/or bleaching, for example, is known mechanical, thermomechanical, chemical and/or Poluchenie and/or other well-known methods pulping. Used herein, the term "hardwood pulp" includes the pulp derived from wood pulp deciduous trees (Metasperm plants), such as birch, oak, beech, maple and eucalyptus. Used herein, the term "softwood pulp" includes the pulp derived from wood of coniferous trees (gymnosperms), such as various fir, spruce and pine trees, such as pine incense, pine Caribbean, the thorny spruce, balsam fir and dopasowa fir. In some embodiments, the implementation of at least part of the fibers of wood pulp can be made from non-timber herbaceous plants, including, but without limitation, kenaf, hemp, jute, flax, sisal or abaku, although the legal limitations and other considerations may make the use of cannabis and other sources of fibers impractical or impossible. You can use bleached or unbleached fiber. Also suitable for use recycled fiber.

The paper Foundation can contain from 1 to 99% by weight cellulose fibres from the total mass basis. In one embodiment, the paper base may contain from 5 to 95% by weight cellulose fibres from the total mass basis. These values include all values and ranges between them, for example, 1, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 and 99%by weight.

The paper Foundation can choose to be 1 to 100 wt.% cellulose fibers from coniferous species from the total amount of cellulose fibres in a paper basis. In one embodiment, the paper base can be from 0 to 60 wt.% cellulose fibers from deciduous species of the total number of cellulose fibres in a paper basis. These values include 1, 2, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 and 100 wt.% and all bands and sub-bands in them of total amount of cellulose fibres in a paper basis.

In one embodiment, the paper base can alternative or perekryvaet contain from 0.01 up to 99% by weight fibers from deciduous species from the total mass of the paper base. In another embodiment, the paper base may contain from 10 to 60 wt.% fibers from deciduous species from the total mass of the paper base. These ranges include all values and sub-bands in them. For example, the paper base may contain not more than 0,01, 0,05, 0,1, 0,2, 0,5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85,90,95 and 99% by weight coniferous fibres from the total mass of the paper base.

All or part of coniferous fibres can be obtained from coniferous species with canadian standard grinding degree (CSF) from 300 to 750. In one embodiment, the paper base contains fiber of coniferous type with the CSF from 400 to 550. These ranges include all values and ranges between them, for example, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460, 470, 480, 490, 500, 510, 520, 530, 540, 550, 560, 570, 580, 590, 600, 610, 620, 630, 640, 650, 660, 670, 680, 690, 700, 710, 720, 730, 740 and 750 CSF. Canadian standard grinding degree measured standard method TAPPI T-227.

The paper Foundation can choose to be 1 to 100 wt.% cellulose fibers from coniferous species of the total number of cellulose fibres in a paper basis. In one embodiment, the paper base can contain from 30 to 90 wt.% cellulose fibers from coniferous species of the total number of cellulose fibres in a paper basis. These ranges include 1, 2, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75. 80, 85, 90, 95, and 100% by weight and all values and sub-bands in them of total amount of cellulose fibres in a paper basis.

In one embodiment, the paper base can alternative or perekryvaet contain from 0.01 up to 99% by weight fibers from deciduous species from the total mass of the paper base. In another embodiment, the paper base can alternative or perekryvaet contain 60 to 90 wt.% fibers from deciduous species from the total mass of the paper base. These ranges include all values and ranges between them, including not more than 0,01, 0,05, 0,1, 0,2, 0,5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, and 99% by weight from the total mass of the paper base.

If the paper base contains deciduous and coniferous fibres, their mass ratio can choose to range from 0.001 to 1000. In one embodiment, the ratio of broadleaved/coniferous fibres can be from 90/10 to 30/60. These ranges include all values and ranges between them, including 0,001, 0,002, 0,005, 0,01, 0,02, 0,05, 0,1, 0,2, 0,5, 1, 2, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 200, 300, 400, 500, 600, 700, 800, 900 and 1000.

Coniferous fibres, hardwood fiber or both can be modified physical and/or chemical means. Examples of physical methods include, but without limitation, electromagnetic and mechanical methods. Examples of electrical modifications include, but without limitation, the ways in which the fibers are in contact with the source of electromagnetic energy, such as light and/or electric shock. Examples of mechanical modifications include, but without limitation, the ways in which fibre contact inanimate object. Examples of such inanimate objects include objects with sharp and/or blunt edges. Such methods include, for example, cutting, grinding, grinding, perforation, etc. and their combinations.

Non-limiting examples of chemical modifications include traditional methods of processing of the fibers, such as stapling and/or sedimentation by them complexes. Other examples of modifications fibers include the methods described in U.S. patent№6592717, 6592712, 6582557, 6579415, 6579414, 6506282, 6471824, 6361651, 6146494, N, 5731080, 5698688, 5698074, 5667637, 5662773, 5531728, 5443899, 5360420, 5266250, 5209953, 5160789, 5049235, 4986882, 4496427, 4431481, 4174417, 4166894, 4075136 and 4022965, all the contents of which are incorporated herein by reference. Other examples of modifications fibres can be found in patent applications, US no 60/654,712, dated 19 February 2005 and 11/358,543 dated 21 February 2006, which may include the addition of an optical brighteners, as it is written, all the contents of which are incorporated herein by reference.

The paper Foundation can choose to include a "trifle". Fiber "trifles" is the fiber, the average length of which does not exceed 100 microns. Sources of "trifles" can be fiber SaveAll, current flows, flows of marriage, threads rejected fibers and their combinations. The amount of "stuff"that is present in a paper basis can be changed, for example, by adjusting the speed of adding threads in the process of paper production. In one embodiment, the average length trifles does not exceed 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 and 100 microns, including all bands and sub-bands in them.

If they are used, fiber "trifles" can be present in a paper basis with hardwood fibres, coniferous fibres or both.

The paper Foundation can choose to be from 0.01 to 100 wt.% trivia from the total mass of the paper base. In one embodiment, the paper base may contain from 0.01 to 50 wt.% trivia from the total mass basis. These ranges include all values and ranges between them, including not more than 0,01, 0,05, 0,1, 0,2, 0,5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 and 100 wt.% trivia from the total mass of the paper base.

In one embodiment, the paper base can alternative or perekryvaet contain from 0.01 to 100 wt.% trivia from the total mass of the fibers in the paper base. This range includes all the values and ranges between them, including not more than 0,01, 0,05, 0,1, 0,2, 0,5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 and 100 wt.% trivia from the total mass of the fibers in the paper base.

The registration form contains at least one sizing substance that interacts with a paper basis for the formation of I-beam structure. Because it contains at least one water-soluble salt of ferrous metal, sizing substance is virtually unlimited, and you can use any size substance used in paper production. Sizing substance can be chemically active, chemically inactive or a combination of the inactive and active. Sizing substance may choose to give a paper basis moisture or water in varying degrees. Non-limiting examples sizing products are available in the publication "Handbook of engineer-technologist of pulp and paper production (Handbook for Pulp and Paper Technologists)", G.A. Smook (1992), Angus Wilde Publications, which are incorporated herein in full by reference. Preferably, sizing substance is surface sizing agent. Preferred sizing examples of substances are starch, dimer of alkylketen (AKD), dimer of altanissetta (ALKD), alchemistry anhydride (ASA), ASA/ALKD, styrene-acrylic emulsion (SAE), polyvinyl alcohol (PVOH), polifenolami, alginate, carboxymethylcellulose, etc. But you can use any sizing agent. See, for example, sizing agent disclosed in U.S. patent №6,207,258, all the contents of which are incorporated herein by reference. In this area is known for many chemical inactive sizing agent. Examples include, without limitation, chemically inactive polymer emulsion for gluing surface BASOPLAST® 335D manufactured by BASF Corporation (mountain olive, new Jersey), emulsion copolymer of vinyl acetate and butyl acrylate FLEXBOND® 325 produced Air Products and Chemicals, Inc. (Trexlertown, Pennsylvania) and chemically inactive sizing agent PENTAPR1NT® (disclosed, for example, in the published international patent application WO № 97/45590, published on 4 December 1997, corresponding patent application the USA, serial number 08/861,925, filed may 22, 1997, which is incorporated herein by reference), on behalf of Hercules Incorporated (Wilmington, Delaware).

For the manufacture of paper in alkaline conditions of production, you can use the sizing agent on the basis of dimers of alkylketen (AKD) or dimers of altanissetta (ALKD) or altimirov and albaniantrip anhydride (ASA). You can also use combinations of these and other sizing agents. The ketene dimer as sizing agent for paper production is well known. AKD containing one P-Laktionova ring, usually obtained by the reaction of alkylketen, made of two chlorides fatty acids. Commercial sizing agent on the basis of dimers of alkylketen often get out of palmitic and/or stearic fatty acids, for example, sizing agent Neeap® and Aquapel® (both from Hercules Incorporated).

Sizing agent on the basis of dimers of altanissetta also available, such as sizing agent Precis® (Hercules Incorporated).

In the U.S. patent №4,017,431, all the contents of which are incorporated herein by reference, provides a non-limiting illustrative disclosure sizing substances AKD mixed with wax and water-soluble cationic resins.

As sizing agent you can also use multinary of ketene containing more than one p-Laktionova rings.

Sizing agent, derived from a mixture of mono - and dicarboxylic acids, are disclosed as sizing agent for the paper have not passed the examination of patent applications Japan №168991/89 and 168992/89.

In the published European patent application №0629741 A1 disclosed dimer and mixtures of altimirov of alkylketen as sizing agent for paper used in high-speed machines for processing, treatment and reprography. Multinary of alkylketen produced by reactions monocarboxylic acids with molar excess, usually fatty acids with dicarboxylic acid. These multimeric connection cure at 25 degrees C.

In the published European patent application №0666368 A2 and in the U.S. patent №5,685,815 (Bottorff and others), all the contents of which are incorporated herein by reference, discloses the paper for speed or reprographic operations dimer and/or MultiTerm of altanissetta as a sizing substance that is inside is coated with alkyl or sizing agent. Preferred 2-Oceanology of multinary obtained at ratio of fatty acids with dikilitas in the range from 1:1 to 3.5:1.

Commercial sizing agent-based ASA are dispersions or emulsions of materials that can be obtained by the reaction of maleic anhydride with olefin (14-18 ).

Examples hydrophobic acid anhydrides, used as a sizing agent for paper, include:

(i) anhydride resin acids (see U.S. patent №3,582,464, all the contents of which are incorporated herein by reference);

(ii) anhydrides, having a structure (I):

where each R - the same or other hydrocarbon moiety; and

(iii) circular anhydrides of dicarboxylic acid, having a structure (II):

Resin can be modified or unmodified, or dispersible emulsifiable resin suitable for gluing of paper, including non-amplified resin reinforced resin and extended resin, and resin esters, and their mixtures. Used herein, the term "tar" means any one of these forms dispersed resin suitable as a sizing agent.

Resin in dispersed form not specifically restricted, and you can use any of the commercially available types of resins, such as wood resin, gum rosin, resin taly oil and mix of any two or more pitches in their crude or purified state. In one embodiment, used resin tall oil and gum rosin. You can also use partially hydrogenated resin and primaryservername resin, and resin-treated for inhibition of crystallization, for example, thermal treatment or reaction with formaldehyde.

Reinforced resin is not specifically limited. One example of such a tar is a product of accession reaction between resin and acid compound containing group

and obtained by the reaction resin and acid compounds at elevated temperature from 150 C to 210°N

The number of used acid compounds will be, which will provide enhanced resin, containing approximately 1 to 16% by weight attached acid compounds by weight reinforced resin. Methods of obtaining reinforced resin is well known to specialists in this field. See, for example, the ways disclosed in the U.S. patent # 2,628,918 and 2,684,300, all the contents of each of which are incorporated herein by reference. Examples of acid compounds containing group

which can be used to obtain enhanced resin include α b-unsaturated organic acids and their anhydrides, specific examples of which include fumaric acid, maleic acid, acrylic acid, maleic anhydride, atakanova acid, itacademy anhydride, tarakanovu acid and citraconic anhydride. The desire to receive enhanced resin, you can use a mixture of acids.

For example, a mixture of product accession of acrylic acid resin and product accession fumaric acid can be used for sizing agent in the form of dispersed resin. You can also use a reinforced resin, which in essence fully gidrogenizirovanii after the formation of the product accession.

Resin complex ethers can also be used in the sizing substances in the form of dispersed resin. Examples of suitable resin complex ethers can be esterified resin, as described in U.S. patent # 4,540,635 (Rong and others) and no 5,201,944 (Nakata and others), all the contents of each of which are incorporated herein by reference.

Non-amplified or reinforced resin or resin complex ethers can be optionally expanded known fillers, such as waxes (in particular, paraffin wax, microcrystalline wax), hydrocarbon resins including derived from petroleum hydrocarbons and terpenes and other This can be achieved by mixing of the melt or mixing of the solution with resin or reinforced with resin from 10 to 100 wt.% filler from weight resin or reinforced resins.

You can use a mixture of reinforced resin and non-amplified resin, mixture reinforced resin, non-amplified resin resin complex ethers and filler. A mixture of reinforced and non-amplified resin may include, for example, from 25% to 95% reinforced resin and from 75% to 5% non-amplified resin. Mix reinforced resin, non-amplified resins and fillers may include, for example, from 5% to 45% reinforced resin, from 0 to 50% non-amplified resin and 5% to 90% filler.

Also as a size of substances can be used hydrophobic organic isocyanates, such as alkylated isocyanates. Other traditional sizing agent for paper include alkilirovanii-chlorides, alkylated melamine, such as sterilizovanny the melamine, and styrene-acrylate.

Possible mixture sizing agents.

You can use the outer sizing substance or both internal and surface sizing agent. If both are used, they may be present in any mass ratio and can be the same and/or different. In one embodiment, the mass ratio of surface sizing agent with the internal sizing substance is from 50/50 to 100/0, preferably from 75/25 to 100/0 surface/internal sizing agent. This range includes 50/50, 55/45, 60/40, 65/35, 70/30, 75/25, 80/20, 85/15, 90/10, 95/5 and 100/0, including all bands and sub-bands in them. Preferred example internal sizing agent is alchemistry anhydride (ASA).

In one embodiment, the mixture containing calcium chloride and one or more of starches, is in contact with at least one surface of the basis. Examples include starches found in nature carbohydrates, synthesized in corn, tapioca, potatoes, and other plants by polymerization dextrose links. You can use all these starches and modified forms, such as acetate, starch, esters starch ethers, starch, phosphate starch, cantata starch, anionic starch, cationic starch, oxidized starch, etc. that can be obtained by the reaction of starch with a suitable chemical or enzyme reagent. Optional starches can be obtained by known methods or purchased. For example, in the sale of starches include Ethylex 2035 from AU Staley, PG 280 from Penford Products, oxidized corn starches from ADM, Cargill and Raisio and enzyme converts starches, such as Amyzet 150 from Amylum.

You can use the modified starches. Non-limiting examples of modified starches include cationic chemically modified starches, such as leaded, oxidized, and maize and enzyme converts the starch Pearl. Most preferred are chemically modified starches, such as leaded, oxidized, and maize and enzyme converts the starch Pearl.

In one embodiment, the water-soluble salt of metal, such as calcium chloride, starch Ethylex 2035 use in sizing compositions applied to both sides of a sheet of paper, and have improved drying time sheet, if the mass ratio of calcium chloride with starch is equal or more than 0.5 to 20%. This range includes all the values and ranges between them, including 0,5, 0,6, 0,7, 0,8, 0,9, 1, 1,5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20%, and any combination of them. In one embodiment, the mass ratio of calcium chloride with starch can be from 0.5 to 18%. In another embodiment, the mass ratio can range from 0.75%to 17%. In another embodiment, the mass ratio can range from 1% to 16%. The mass ratio of calcium chloride with starch may be half from the above, if a mixture of starch/salt is put only on one side of the paper, and starch without salt put on the other side. In this case, the superior properties when printing can be expected only on the side of paper containing salt.

The number of soluble salts ferrous metal and one or more of starches in the basis and/or on the basis can vary widely, and you can use any of the traditional number. One advantage of the invention is that you can optionally use a reduced number sizing agent and/or water-soluble salts ferrous metal. In one embodiment, the number of soluble salts ferrous metal and/or on the basis of at least 0.02 g/m 2 recording sheet, although you can use the more and fewer. The number is preferably at least 0.03 g/m, preferably at least 0.04 g/m 2 and it is most preferable approximately 0.04 g/m 2 up to 3.0 g/m 2 . These preferred ranges include all values and ranges between them, including 0,02, 0,03, 0,04, 0,05, 0,06, 0,07, 0,08, 0,09. 0,1, 0,2, 0,3, 0,4, 0,5, 0,6, 0,7, 0,8, 0,9, 1,0, 1,2, 1,4, 1,6, 1,8, 2,0, 2,2, 2,4, 2,6, 2,8 and 3.0 g/m 2 and any combination of them.

If the sizing agent is used polyvinyl alcohol, it can have any interest hydrolysis. Preferred polyvinyl alcohols are having percentage of hydrolysis from 100% to 75%. The percentage of hydrolysis of poly (vinyl alcohol) can be 75, 76, 78, 80, 82, 84, 85, 86, 88, 90, 92, 94, 95, 96, 98 and 100%, including all bands and sub-bands in them.

The paper Foundation may contain PVOH in any wt.%. Preferably in the presence of polyvinyl alcohol is present in the number of 0,001 mass% up to 100 wt.% from the total mass sizing agent contained in and/or on the basis. This range includes 0,001, 0,002, 0,005, 0,006. 0,008, 0,01, 0,02, 0,03, 0,04, 0,05, 0,1, 0,2, 0,4, 0,5, 0,6, 0,7, 0,8, 0,9, 1, 2, 4, 5, 6, 8, 10, 12, 14, 15, 16, 18, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 and 100 wt.% from the total mass sizing agent in basis, including all bands and sub-bands in them.

Sizing substance may also include one or more supplements to choose from such as binders, pigments, thickeners, antifoaming substances, surface active substances, substances that facilitate slippage, dispersers, optical Brightener, dyes and preservatives, which are well known. Examples of pigments include, but without limitation, clay, calcium carbonate, sulfate hemihydrate calcium and dehydrate calcium sulphate, chalk, the ICC, the OCC and other Preferred pigment is calcium carbonate in the preferred form of precipitated calcium carbonate. Examples include binders, but without limitation, polyvinyl alcohol, Amres (Kimen), Bayer Parez, polichronidou emulsion, modified starch, such as hidroxidului starch, starch, polyacrylamide, modified poliakrilamid, polyol, the product of the merger of carbonyl to polyol, the condensate of arandela/polyol, Polyamid, epichlorhydrin, glyoxal, localmachine, atendia, aliphatic polyisocyanate, isocyanates, 1,6-hexamethylene diisocyanate, diisocyanate, polyisocyanate, polyester, polyester resin, polyacrylate, polyacrylate resin, acrylate and methacrylate. Other optional supplements include, but without limitation, silicon dioxide in the form of colloidal solutions and/or sols. Examples of silica include, but without limitation, sodium silicate and/or borosilicate. Other additives can be one or more solvents such as water. The possible combinations of additives.

The majority of the total number sizing agent is preferably located on the outer surface or surfaces (if the sizing is applied to both surfaces) paper base or near them. The paper Foundation of the present invention includes a sizing substance, so they (base and sizing substance) interact for the formation of I-beam structure. In this respect do not want sizing substance penetrated into the pulp fiber of the Foundation and Vice versa. However, with the mutual penetration of the coating layer and cellulose fibers obtained the paper Foundation with a layer of mutual penetration, which is included in the scope of the present invention.

The layer of mutual penetration of the paper base defines the area in which at least sizing the solution penetrates into cellulose fibre and distributed among them. The layer of mutual penetration can be from 1 to 99% of the cross-section of at least part of the paper base, including 1, 2, 5, 10, 15, 20. 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 and 99% of the paper base, including all bands and sub-bands in them. This option may not be exercised, for example, when sizing the solution add to cellulose fibres before coating, and if necessary it can be combined with subsequent coating. Where to add can be, for example, in sizing press.

Preferably, the thickness of the layer of mutual penetration of cross-section minimize. Alternative or in addition, the concentration sizing agent preferably increases in transition (in the z-direction perpendicular to the plane of base) from the inner part of the surface of the paper base. Therefore, the number sizing agent in the upper and/or lower external surfaces basis preferably more quantity sizing agent in the direction of the internal middle of the paper base. Alternatively, a higher percentage sizing agent may preferably be located at some distance on the outer surface of basis, equal to or less than 25%, more preferably 10%of the full thickness of the basics. This aspect can also be known as Qtotai, which is measured by known methods, described in the patent publication, US no 2008/0035292 from February 14, 2008, which is incorporated herein by reference. If Qtotai is 0.5, then a sizing substance approximately evenly distributed in a paper basis. If Qtotai greater than 0.5, the sizing agent and more in the direction of the Central part (in the z-direction perpendicular to the plane of base) paper base, than in the direction of the surface or surfaces of the paper base. If Q total less than 0.5, sizing agent less in the direction of the Central part of the paper base, than in the direction of the surface or surfaces of the paper base. In the light of the above, the paper base preferably has a Q total is less than 0.5, preferably less than 0.4, preferably less than 0.3, most preferably less than 0.25. Accordingly, Q total paper base can be from 0 to less than 0.5. This range includes 0, 0,001, 0,002, 0,005, 0,01, 0,02, 0,05, 0,1, 0,15, 0,2, 0,25, 0,3, 0,35, 0,4, 0,45 and 0.49, including all bands and sub-bands in them.

As mentioned above, the definition of Q can be performed according to the procedure described in the patent publication, US no 2008/0035292 from February 14, 2008

Of course, there are other ways of measuring the value of Q. In one embodiment, acceptable any dimension Q or similar method of measurement of the ratio of the number of sizing agent by the middle of the canvas to the number sizing agent to the outer surface or surfaces basis. In a preferred embodiment, this attitude is such that the maximum number sizing agent is located towards the outer surfaces basis, thereby minimizing areas of mutual penetration and/or minimise the number sizing agent in the layer of mutual penetration. It is also preferred that this distribution sizing agent took place even at very high level downloads sizing agent, preferably external download sizing agent in and/or on the canvas. Thus, it is desirable to control the amount of sizing agent in the layer of mutual penetration, if the surface download more and more external sizing agent by or minimize concentration sizing agent in this layer of mutual penetration, or by reducing the thickness of the layer of mutual penetration. In one embodiment, the characteristics of the recording sheet and/or the paper base of the present invention those that can be achieved in a control sizing agent. While this is a controlled boot sizing agent can occur in any way, it is preferable for sizing the substance is loaded or put in sizing press.

Another example of a way of measuring the amount of sizing agent in the transition from the outer edges to the middle of the sheet in the cross section contains Example 10, where paper divide and measure the amount sizing agent in every part of the sheet.

Regardless of the method of measuring the amount of sizing agent in the transition from the outer edges to the middle of the sheet in the cross section, one option implementation is that sizing substance is the salt of ferrous metal, which is effective concentration in the distance, which makes up 25% from at least one surface of basis, and at least most, preferably 75%, it is most preferable 100% of the total salt concentration of bivalent metal is located at a distance of up to 25% from at least one surface of basis, and the effective concentration of salt ferrous metal gives black optical density at least 1,15. In this embodiment, the effective concentration of salt ferrous metal can be at least 2500 parts per million, preferably at least 6000 ppm, most preferably at least 12,000 ppm.

The effective concentration of salt ferrous metal may be at a distance of up to 25%, 20%, 15%, 10% and 5% in at least one surface of basis, including all bands and sub-bands within these limits.

At least 51%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95% and 100% of total salt concentration of bivalent metal is at a distance of up to 25% at least one surface of basis, including all bands and sub-bands within these limits.

The effective concentration of the ion divalent metal is such that it gives a black optical density (as above) at least 1,0, 1,1, 1,15, 1,2, 1,25, 1,3,1,35, 1,4, 1,45, 1,5 and 1.6, including all bands and sub-bands within these limits.

Effective concentration can be anything, including 2500, 3000, 3500, 4000, 4500, 5000, 5500, 6000, 6500,7000, 7500, 8000, 8500, 9000, 9500, 10000, 10500, 11000, 11500 and 12,000 ppm ion ferrous metal, including all bands and sub-bands within these limits.

Registration sheet can be obtained by contact sizing agent cellulose fibres of the paper base. Contact can occur at acceptable levels sizing agent and/or other additives.

To prepare songs for size press one or more water-soluble salts ferrous metals can be mixed with one or more of sizing agents, such as starches, and one or more optional supplements may be dissolved or dispersed in a suitable liquid, preferably water, and put on the canvas.

For example, the composition for a size press can be applied in traditional equipment size press, including vertical, horizontal or oblique size press used in paper production, such as equipment Symsizer (Valmet), the size press KRK (Kumagai Riki Kogyo Co., Ltd., Nerima, Tokyo, Japan) for coating immersion. Size press KRK is the laboratory press, which mimics industrial size press. This press is used with sheet feed, whereas in industrial sizing press usually use a continuous sheet.

The number of soluble salts ferrous metal not specifically limited. In one embodiment, in which a sizing substance is applied on both sides of a sheet of paper, the number is from 8 up to 165, including 8-33, moles cations per tonne of paper for paper with basic weight of 75 g/m 2 . This range includes all the values and ranges between them, including 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 37, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 155, 160 and 165 of moles of cations per tonne of paper. This range is equal to the range of 2.5 to 165, including 2.5-33, of moles of cations per tonne of paper for paper with basic weight 250 g/m 2 . This range includes all the values and ranges between them, including 2, 5, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 37, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 155, 160 and 165 of moles of cations per tonne of paper. Here moth cations mean moth divalent cation of metals in the form of salts, mud, etc. or a combination of both.

In one embodiment, the conditions of interoperability sizing agent and the paper base for the formation of the I-structure designed to capture in a dry condition from 30 to 150 pounds starch per tonne of paper with the number solids 12-50% in compositions for size press. Here the number of pounds per tonne calculated for paper with the basic mass of 75 g/m 2 .

The above range of the number of starch includes all the values and ranges between them, including 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145 and 150 pounds per tonne. Here the number of pounds per tonne calculated for paper with the basic mass of 75 g/m 2 .

You must understand that the number of pounds per tonne and moles per tonne may change in a way, depending on the base of paper pulp and the present invention is not limited to paper with basic weight of 75 g/m 2 .

In one embodiment, which as soluble salts ferrous metal used calcium chloride and where sizing substance is present on both sides of a sheet of paper, quantity is from 2 to 8 pounds CaCl 2 per tonne of paper with the basic mass of 75 g/m 2 . This range includes all the values and ranges between them, including 2, 3, 4, 5, 6, 7 and 8 pounds CaCl 2 per tonne of paper. This range is equal to the range of 0.6 to 8 pounds CaCl 2 per tonne of paper with the basic mass of 250 g/m 2 . This range includes all the values and sub-bands within these limits, including 0,6, 1, 2, 3, 4, 5 6, 7, and 8 pounds CaCl 2 per tonne of paper.

In one embodiment, the percentage of solids in compositions for size press may change at least 12 to 50%. This range includes all the values and sub-bands within these limits, including 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 30, 35, 40, 45 and 50%.

In one embodiment, the capture sizing agent in dry condition can range from 0.25 to 6 g/m 2 , including all values and sub-bands within these limits, for example, 0,25, 0,3, 0,4, 0,5, 0,6, 0,7, 0,8, 0,9, 1, 2, 3, 4 5, and 6 g/m 2 and any combination of them.

In one embodiment, the thickness of the wet film is adjusted for proper grip. For example, in one embodiment, the wet film thickness can be from value greater than zero to 40 microns. This range includes all the values and ranges between them, including a value greater than zero, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 16, 17, 18, 19, 20, 25, 30, 35 and 40 microns. In one embodiment, the wet film thickness ranges from 10 to 30 microns. In one embodiment, the wet film thickness ranges from 15 to 25 microns.

In one embodiment, the amount of pigment in sizing press (size composition) can be from 10 up to 80 pounds per tonne. This range includes all the values and ranges between them, including 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 24, 26, 28, 30, 35, 40, 45, 50, 55, 60, 65, 60, 75 and 80 pounds per tonne. Here the number of pounds per tonne calculated for the basic mass of the high grade paper 20# (75 g/m2 ).

In one embodiment, the temperature in sizing press can make from 100 to 300 OC F. This range includes all the values and sub-bands within these limits, including 100,110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290 and 300 OC F.

By contact of cellulose fibres composition for size press in sizing press preferably viscosity sizing solution ranged from 50 to 500 CP in Brookfield viscometer, spindle №2, at 100 rpm and 150o f These ranges include all values and sub-bands within these limits, including 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 125, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 325, 350, 375, 400, 425 and 450 CP in Brookfield viscometer, spindle №2, at 100 rpm and 150 degrees F, including all bands and sub-bands within these limits. In one embodiment, the viscosity ranges from 50 to 350 CP. In another embodiment, the viscosity is from 100 to 500 CP.

The paper Foundation can be compressed in the press section with one or more pressure zones. You can use any pressing tool, known in the field of paper production. Pressure area may include, but without limitation, the zone with one felt, two vetrami, the shaft and the extended area of pressure in the presses. When sizing the solution containing sizing the substance comes into contact with the fiber in sizing press for manufacturing of the paper base, effective pressure in the pressure zone is not specifically restricted, while supported the integrity of I-beam structure. For example, the pressure can range from a value greater than zero up to 80 kN/M. This range includes all the values and sub-bands within these limits, including the value is greater than zero, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70 and 80 kN/m including all the ranges and sub-bands within these limits. In one embodiment, the pressure is from 30 to 80 kN/m

Width pressure area not specifically limited and may range from a value greater than zero to 40 mm This range includes all the values and sub-bands within these limits, including the value is greater than zero, 1, 2, 3, 4, 5. 6, 7, 8, 9, 10, 15, 16, 17, 18, 19, 20, 25, 30, 35 and 40 mm In one embodiment, the width pressure area is 15 to 30 mm

Shaft size press may have apparent hardness Pusi and Jones, preferably any apparent hardness Pusi and Jones. Because two shafts, the first roll can have the first hardness, and the second shaft can have a second hardness. The hardness of shaft can be from 0 to 30 apparent hardness Pusi and Jones. This range includes all the values and sub-bands within these limits, including 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25 and 30 apparent hardness Pusi and Jones. If there are two shaft, they can have the same or different hardness. First hardness and second hardness can be the same or different. As an example, the apparent hardness Pusi and Jones first shaft in sizing press can be from 0 to 30, and the apparent hardness Pusi and Jones second shaft can be from 0 to 30.

In one embodiment, the conditions in sizing press following: solids 12-50%, temperature 140-160 F, viscosity 50-350 CP, dry grip songs size press 0.25 to 10 g/m 2 , and the thickness of the wet film suitable for the desired capture.

In another embodiment, the conditions in sizing press following: solids 12-50%, temperature 140-160 F, viscosity 100-500 CP, dry grip songs for size press 0.25 to 10 g/m 2 , and the thickness of the wet film suitable for the desired capture.

The paper Foundation can be dried in the drying section. You can use any of the drying agent, well-known in the field of paper production. Section drying may include clothes dryer, drying cylinder, the device Condebelt, infrared device, or other drying tools and mechanisms, known in this area. The paper Foundation can be dried to the content of any selected amount of water. Preferably, the basis of dried before content is less than or equal to 10% of water.

The paper Foundation can be calendered any known calendaruse tool, known in the field of paper production. More specifically, you can use, for example, wet calendering, dry calendering, calendering in steel pressure zones, hot soft calendering or calendering in extended areas.

The paper Foundation can have microfinishing finish in any way, well-known in the field of paper production. Microfinanza finish usually includes the methods of surface finishing paper base. The paper Foundation can have microfinishing finish with calendering or without it, applied consistently and/or simultaneously. Examples of ways microfinishing finish can be found in patent publication, US no 2004/0123966 and mentioned in her reference materials, which are all included in the present document in full by reference.

In one embodiment, the paper base, containing sizing substance can be additionally covered by a layer of coating with the use of means of application, including a means of impregnation. The preferred method of applying the coating layer is continuous method on one or more posts. Posts coating can have any means for the coating, known in the field of paper production, including, for example, brush, scraper, air knife, sputtering, veil, Raquel, gear shaft, reverse the shaft and/or means for injection application, and any combination of them.

Next, covered with a paper basis can be dried in the drying section. You can use any of the drying agent, well-known in the field of paper production and/or coatings. Section drying may contain infrared tool, drying device, forcing air, and/or heated by steam drying drums or other drying tools and mechanisms, known in the field of coating.

Further, based coating can be finishing by any means, well-known in the field of paper production. Examples of such finishing tools, including one or more of the finishing positions, include the calender, supercalender and/or calender with increased pressure zone.

The paper base and/or record sheet can be added to any traditional method of manufacture or conversion of paper, including grinding, cleaning, cutting, roughened, perforation, sincere, calendering, final processing of sheet, transformation, coating, laminating, printing, etc. Preferred traditional processes include configured on the production of paper bases that can be used as paper products with coating or without it, cardboard and/or foundations. See the books listed in the "Handbook of engineer-technologist of pulp and paper production", G.A. Smook (1992), Angus Wilde Publications, which are incorporated herein in full by reference.

The registration sheet and/or the paper base can also include one or more optional substances, such as means of restraint, binders, fillers, thickeners and preservatives. Examples of fillers (some of which can also function as pigments, above) include, but without limitation, clay, calcium carbonate, sulfate hemihydrate calcium and dehydrate calcium sulphate, chalk, the ICC, the OCC and other Examples include binders, but without limitation, polyvinyl alcohol, Amres (Kimen), Bayer Parez, polichronidou emulsion, modified starch, such as hidroxidului starch, starch, polyacrylamide, modified polyacrylamide, polyol, the product of the merger of carbonyl to polyol, the condensate of arandela/polyol, polyamide, epichlorohydrin, glyoxal, pixelmachine, atendia, aliphatic polyisocyanate, isocyanates, 1,6-gestalterischen, diisocyanate, polyisocyanate, polyester, polyester resin, polyacrylate, polyacrylate resin, acrylate and methacrylate. Other optional substances include, but without limitation, silica, such as colloidal solutions and/or sols. Examples of silica include, but without limitation, sodium silicate and/or borosilicate. Another example optional substances are solvents, including but without limitation, water. The possible combinations of optional substances.

The registration sheet of the present invention may contain from 0.001 up to 20 wt.% optional substances from the total mass basis, preferably from 0.01 to 10%by weight, the most preferable from 0.1 to 5.0%by weight, at least one of the optional substances. This range includes 0,001, 0,002, 0,005, 0,006, 0,008, 0,01, 0,02, 0,03, 0,04, 0,05, 0,1, 0,2, 0,4, 0,5, 0,6, 0,7, 0,8, 0,9, 1, 2, 4, 5, 6, 8, 10, 12, 14, 15, 16, 18 and 20 wt.% from the total mass basis, including all bands and sub-bands within these limits.

Other traditional additives that may be present include, but without limitation, waterproof resin, internal adhesives, shoproni resin, alum, fillers, pigments and dyes. The Foundation may contain substances that adds volume, such as extensible microspheres, wood fibre and/or diamine salt.

The paper base or sizing substance may optionally contain a substance that adds volume, in any quantity from 0,25 up to 50 pounds of dry matter / tonne of final basis, preferably from 5 to 20 pounds of dry matter / tonne of final product, when such means provide volume is additive. This range includes 0,25, 0,5, 0,75, 1,0, 2,0, 2,5, 3,0, 3,5, 4, 4,5, 5, 5,5. 6, 6,5, 7, 7,5, 8, 8,5, 9, 9,5, 10, 11, 12, 13, 14, 15, 20, 25, 30, 35, 40, 45 and 50 pounds of dry matter / tonne of final product, including all bands and sub-bands within these limits.

A substance that adds volume, can be extensible microsphere, composition and/or particle to describe the volume of paper products and foundations. However, you can use any add volume of the substance, although extensible microsphere, composition, particle and/or obtained in this way the paper base is the preferred tool to add volume. Other alternative substances for giving to the volume include, but without limitation, surfactants, Reactopaque, pre-expanded sphere, STMR (bleached chemi-thermomechanical pulp), Microfinanza processing and multi-layer design to create I-effect in a base of paper or cardboard. Such substances that adds volume, can, after the introduction of a paper basis or applying to ensure adequate print quality, thickness, base weight, etc. in the absence of strict conditions calendering (i.e., the pressure in one area and/or pressure in fewer areas in the calender) and at the same time to create a paper basis with one, some, or a combination of physical and performance characteristics, mentioned in this document.

In one embodiment, the paper base may contain from 0.001 to 10%by weight, preferably from 0.02 up to 5 wt.% preferably from 0.025 to 2 wt.% the most preferable from 0.125 to 0.5% extensible microspheres from total mass basis.

Examples of extensible microspheres, with the ability to increase the volume contained in the patent application, US no 60/660,703, filed March 11, 2005, and patent application, US no 11/374,239, filed March 13, 2006, which are incorporated herein in full by reference. Other examples include examples from the U.S. patent number 6,379,497, issued may 19, 1999, and in patent publication, US no 2006/0102307, filed June 1, 2004, which is incorporated in full by reference.

Some examples add volume fibers include, but without limitation, mechanical fiber, such as ground wood pulp, STMR and other mechanical and/or polymechanics wood pulp.

Adding such wood mass from 0,25 up to 75%by weight, preferably less than 60%by weight, from the total mass of used fibres they can be just add volume fibers.

Examples damigny salts include described in the patent publication, US no 2004/0065423, filed September 15, 2003, which is incorporated in full by reference. Non-limiting examples of such salts include mono - and distearate of animositisomina that can be marketed under the name Reactopaque 100, (Omnova Solutions Inc., Performance Chemicals, 1476 J.A. Cochran By-Pass, Chester, South Carolina, 29706 USA) and sold by the company Ondeo Naico Co., with headquarters in Ondeo Naico Center, NAPERVILLE, Illinois, 60563 USA, or their chemical counterparts. When using such salts is possible to use damianou salt from 0.025 to 0,25% dry mass diamides salt.

Other selected components include nitrogen-containing compounds. Their non-limiting examples include organic nitrogen-containing compounds, for example oligomers and polymers that contain one or several functional groups Quaternary ammonium. Such functional groups can vary widely and include, for example, substituted and unsubstituted amines, Emini, amides, urethanes, group Quaternary ammonium, dicyandiamide, and other guandi Examples of such materials are poliaminy, polyethylenimine, copolymers validome-tramadolflorida (DADMAC), copolymers vinylpyrrolidone with Quaternary di-acylaminopenicillin (DEAMEMA), polyamides, cationic polyurethane latex, cationic polyvinyl alcohol, copolymers polyallylamine and dicianni Dov, polymers with the accession of minglecity, polyoxyethylene (dimethylamino)ethylene (dimethylamino)ethylene] dichloride, guanidine polymers and polymer biguanides. The possible combinations of these nitrogen-containing compounds. Some examples of these compounds are given in U.S. patent №4,554,181, the U.S. patent №6,485,139, the U.S. patent №6,686,054, the U.S. patent №6,761,977 and the U.S. patent № 6,764,726, the full amount of each of which are incorporated herein by reference.

Extensible microspheres may contain an extensible shell, forming a void inside of her. An extensible shell can contain carbon, or direct connection. An example of carbon and/or heteroatomic compounds can serve organic polymer and/or copolymer. Polymer and/or copolymer can be extensive and/or custom made.

Extensible microspheres preferably are extensible heating hollow sphere of thermoplastic polymer containing thermally activated extend the substance. Examples of songs expanding microspheres, their content, methods of production and use can be found in the U.S. patent # 3,615,972; 3,864,181; 4,006,273; 4,044,176 and 6,617,364, which is incorporated in full by reference. You can also mention patent publication, US no 2001/0044477; 2003/0008931; 2003/0008932 and 2004/0157057, which is incorporated in full by reference. Microspheres can be made of polyvinylidenfluoride, polyacrylonitrile, polyalkyleneglycol, polystyrene or vinyl chloride.

Microspheres may contain polymer and/or copolymer, which has a glass transition temperature range from -150 to +180 C, preferably 50 to 150 C, the most preferable from 75 to 125°N

Microspheres can also contain at least one foaming agent, which after exposure to a number of thermal energy creates internal pressure on the inner wall of the microspheres in such a way that microsphere expanding. Foaming substances can be liquids and/or gases. In addition, examples of foaming agents, you can choose from molecules with a low boiling point and their combinations. Such foaming substances can be selected from the lower alkanes, such as neopentane, neolexan, hexane, propane, butane, pentane and their isomers. Isobutane is the preferred blowing agent for polyvinylidenfluoride microspheres. Examples unexpanded and advanced microspheres with floor shows in the U.S. patent # 4,722,943 and 4,829,094, which is incorporated in full by reference.

In one embodiment, extensible microspheres can be neutral, negatively or positively charged, preferably negatively charged.

One variant of the implementation of the present invention relates to a registration sheet for printing, contains the basis of cellulose fibers and in contact with at least one surface sizing substance containing at least one water-soluble salt of ferrous metal, and the basis and sizing substance interact for the formation of I-beam structure. The authors of the present invention unexpectedly found that the level sizing framework could be reduced if sizing matter interacts with the principal for formation of I-beam structure.

Measurement of color coverage can be performed by known methods.

In one embodiment, the registration sheet has improved drying time of the image is determined by the amount of paint that is transferred from a printed before neotectonic part of the registration sheet after rolling cushion with a fixed mass. "Ink deposits stay" is defined as the value of optical density, transferred after rolling cushion; it is expressed as a percentage of optical density, transferred to neotitanium part of the registration sheet after rolling cushion. This method includes print a solid blocks of color on paper, waiting for a certain period of time, 5 seconds after printing, follow-fold in half so that the printed part in contact with neotectonic part of the registration sheet, and rolling manual roller weighing 4.5 pounds, as, for example, roller with part number HR-100 from Chem Instruments, Inc., Mentor, Ohio, USA. The optical density reading at transferred (ODt), transferred (ODo) parts of the block and the area of the image (OD B ) using reflective densitometer X-Rite, Macbeth. Etc.). The percentage of transfer ("IT%") is defined as IT%=[(ODt-D B )/(D 0-D B )]X100.

With regard to this document, the value sizing Hercules ("HST") basis and the number and/or type of soluble salts ferrous metal can be chosen so that the registration sheet had percentage of KRASNOPEREKOPS ("IT%") equal to or less than 60. Preferably, IT% is from 0% to 50%. Preferably, IT% is from 0% to 40%. The most preferable 1T% is from 0% to 30%.

In addition to improved drying time image recording sheets have good print quality. Used herein, the term "print quality (PQ) is measured on two important parameters: the density of print and the sharpness of the edges. Print density is measured by the reflective densitometer X-Rite, Macbeth. Etc.) in units of optical density ("OD"). This method includes print a solid block of color on the sheet and measurement of optical density. There are some changes in OD depending on your specific printer and the printing mode, and from the operation mode, and color settings densitometer. The printer is not specifically restricted and can be used, for example, HP DeskJet 6122, manufactured by Hewlett-Packard, which uses the black cartridge №45 (part number HP 51645A). Print mode is determined by the type of paper and selected print quality. Can be selected print mode with default values "Ordinary (plain) paper" and "Quick - Normal quality". Suitable densitometer can be spectrodensitometer X-Rite models 528 6 mm aperture Settings density measurement can be "Visual color, Condition T" and the regime of absolute density. Increase the print density you can usually see when the surface of the paper are a sufficient number of water-soluble salts ferrous metal. Usually target the optical density for the black pigment ("ODo") equal to or greater than 1.10 in standard mode print (uncoated paper, normal quality) for desktop inkjet HP printers that use the usual black paint (equivalent to the cartridge №45). Preferably, ODo equal to or greater than 1,15. Preferably, ODo is equal to or greater 1,20. The most preferable, OD equal to or greater than 1,50 or even 1,60. ODo can be equal to or more 1,1, 1,15, 1,2, 1,25, 1,3, 1,35, 1,4, 1,45, 1,5, 1,55 and even equal or exceed 1,6, including all bands and sub-bands within these limits.

Registration sheets have good sharpness of the edge ("EA"). The sharpness of the edge is measured in such a device, as, for example, the System for analysis of personal images QEA (Quality Engineering Associates, Burlington, Massachusetts), QEA ScannerlAS or system ImageXpert KDY on the basis of the camera. All these devices are used to enlarge digital images of the sample and calculate the value of the sharpness of edges in the process of image analysis. It is also called "the graininess of the region", and it is defined in ISO 13660. The method includes print a solid line with a length of 1.27 mm or more sampling at a resolution of at least 600 dpi. The instrument calculates the location of the region on the basis of the dark color of each pixel near the edges of the line. The threshold for the region defined as the point 60% of transition from the reflection coefficient of the basis (white area, R max ) before reflectance image (dark area, R-max) using equation R60=R max -60% (R max R min ). The graininess edge then defined as the standard deviation of the residual values from the fitted line to the threshold of edge, calculated perpendicular to the fitted line. The value of field edges preferably less than 15. Preferably, EA less than 12. Preferably, EA is less than 10. The most preferable, EA is less than about 8.

Registration sheet preferably has a high dimensional stability. Registration sheets with high dimensional stability, preferably have a lower tendency to curl. Therefore, the preferred recording sheets of the present invention has a decreased tendency to curl over traditional recording sheets.

One useful indicator of dimensional stability is the physical dimension of gyroresonant, such as gyroresonance Neenah by way 549 TAPPI by electronic monitoring and control relative humidity (RH) using desicator and humidifier, not just the concentration of salt. RH environment varies from 50% to 15%, then to 85%, causing a resize of the measured sample paper. For example, the registration sheet of the present invention may be gyroresonant in the transverse direction when changing RH, as mentioned above, from 0.1 to 1.9%, preferably from 0.7 to 1.2 percent, the most preferable from 0.8 to 1.0%. This range includes 0,1, 0,2, 0,3, 0,4, 0,5, 0,6, 0,7, 0,8, 0,9, 1,0, 1,1, 1,2, 1,3, 1,4, 1,5, 1,6, 1,7, 1,8 and 1.9%, including all bands and sub-bands within these limits.

Registration sheet preferably has inner connection in the longitudinal direction from 10 to 350 ft-lbs x 10 -3 per square inch, preferably from 75 to 120 ft-lbs x 10 -3 per square inch, preferably from 80 to 100 ft-lbs x 10 -3 per square inch, it is most preferable from 90 to 100 ft-lbs x 10 -3 per square inch. This range includes 10, 11, 12, 13, 14, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70,75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 160, 165, 170, 175, 180, 185, 190, 195, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340 and 350 ft-lbs x 10 -3 per square inch, including all bands and sub-bands within these limits. Internal communication in the longitudinal direction is the Link Scott, measured way TAPPI t-569.

Registration sheet preferably has inner connection in the transverse direction from 10 to 350 ft-lbs x 10 -3 per square inch, preferably from 75 to 120 ft-lbs x 10 -3 per square inch, preferably from -80 up to 100 ft-lbs x 10 -3 per square inch, it is most preferable from 90 to 100 ft-lbs x 10 -3 per square inch. This range includes 10, 11, 12, 13, 14, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65,70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 160, 165, 170, 175, 180, 185, 190, 195, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340 and 350 ft-lbs x 10 -3 per square inch, including all bands and sub-bands within these limits. Internal communication in the transverse direction is the Link Scott, measured way TAPPI t-569.

Both of the above internal communication in the transverse direction and in longitudinal direction, measured way TAPPI t-569, can also be measured in j/m 2 . The conversion factor for conversion of foot-pounds x 10 -3 per square inch in j/m 2 is 2. Therefore, in order to transform the inner connection 100-pound pounds x 10 -3 per square inch in j/m 2 , you simply multiply by 2 (i.e., 100-pound pounds x 10 -3 per square inch x 2 j/m 2 ) 1 of foot-pound x 10 -3 per square inch=200 j/m 2 . All of the above ranges of foot-pounds x 10 -3 in. so, then you can include the appropriate ranges in j/m 2 , below.

Registration sheet preferably has inner connection in the longitudinal direction from 20 to 700 j/m 2 , preferably from 150 to 240 j/m 2 , preferably from 160 to 200 j/m 2 , it is most preferable from 180 to 200 j/m 2 . This range includes 20, 22, 24, 26, 28, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 320, 330, 340, 350, 360, 370, 380, 390, 400, 420, 440, 460, 480, 500, 520, 540, 560, 580, 600, 620, 640, 660, 680 and 700 j/m 2 , including all bands and sub-bands within these limits. Internal communication in the longitudinal direction is the Link Scott, measured way TAPPI t-569.

Registration sheet can have any relation to internal communication/number sizing agent. In one embodiment, the basis contains large quantities of sizing agent and/or downloaded sizing agent, and at the same time has a low internal communication. Accordingly, in one embodiment, the ratio of internal communication/number sizing agent can reach 0. In another embodiment, the registration sheet has inner connection that or decreases or remains constant, or minimally increases with the content sizing and/or downloaded sizing agent. In another embodiment, the change in the internal communication of the registration sheet is 0, negative or small positive number with the increase in the number of downloadable sizing agent. It is desirable that the registration sheet had such a phenomenon in various degrees wt.% solid substances in sizing the substance is applied on fiber sizing press, as stated above. In another embodiment, it is desirable that the registration sheet had any one or all of the above phenomena, and also had greater strength surface, measured by determining the strength plucking and/or seizure of wax.

Registration sheet can have any relation to internal communication/number sizing agent. The internal communication/number sizing agent may be less than 100, preferably less than 80, preferably less than 60, most preferably less than 40 j/m 2 /g/m 2 . The internal communication/number sizing agent may be less 100, 95, 90, 85, 80, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 38, 35, 32, 30, 28, 25, 22, 20, 18, 15, 12, 10, 7, 5, 4, 3, 2 1 j/m 2 g/m 2 , including all bands and sub-bands within these limits.

The paper Foundation preferably with porosities in Gurley from 5 to 100/100 ml. This range includes 5, 10, 11, 12, 13, 14, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 75, 80, 90, 95 and with 100/100 ml, including all bands and sub-bands within these limits. Porosity Gurley measured way TAPPI t-om 460-88.

The paper Foundation preferably has stiffness in the transversal direction on Gurley from 100 to 450 mgf, preferably from 150 to 450 mgf, preferably from 200 to 350 mgf. This range includes 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290. 300, 310, 320, 330, 340, 350, 375, 400, 425 and 450 mgf including all bands and sub-bands within these limits. Stiffness in the transversal direction on Gurley measured way TAPPI t-543.

The paper Foundation preferably has a hardness on Gurley in the longitudinal direction from 40 to 250 mgf, preferably from 100 to 150 mgf. This range includes 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140,150, 160, 170, 180, 190, 200, 210, 220, 230, 240 and 250 mgf, including all bands and sub-bands within these limits. Rigidity in Gurley in the longitudinal direction is measured way TAPPI t-543.

The paper Foundation preferably opacity from 85 to 105%, preferably from 90 to 97%. This range includes 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104 and 105%, including all bands and sub-bands within these limits. Opacity is measured way TAPPI t-425.

The registration sheet of the present invention can be any white CIE, but preferably more than 70, preferably more than 100, it is most preferable to more than 125 150 or even more. White CIE can range from 125 to 200, preferably from 130 to 200, most preferably from 150 to 200. White CIE may be more or equal to 70, 80, 90, 100, 110, 120, 125, 130, 135, 140, 145, 150, 155, 160, 65, 170, 175, 180, 185, 190, 195 and 200 points of white CIE, including all bands and sub-bands within these limits. Examples of measurement of white CIE and get this white fiber for the manufacture of paper and made of paper can be found, for example, U.S. patent no 6,893,473, which is incorporated in full by reference. In addition, examples of measurement of white CIE and get this white fiber for the manufacture of paper and made of paper can be found, for example, in the patent application, US no 60/654,712, filed February 19, 2005, and in patent applications, US no 11/358,543 dated 21 February 2006, №11/445809 from June 2, 2006 and №11/446421 dated 2 June 2006, which are also included in this document in full by reference.

Registration sheet has enhanced features for print and enhanced cross-country capability (for example, characteristics of a printing press). Specifications for printing can be measured by determining improved the solidity diffusion point, capture, color, contrast, print and/or color tone. Colours, which are traditionally used in such inspections characteristics include black, cyan, Magenta and yellow, but in any case they are not restricted. Specifications for printing can be determined by the definitions of pollution visual inspection of the printing systems, cloths, plates, delivery systems, paints, etc. Pollution typically includes pollution fibers, coating or sizing, filler or binder, accumulation of dirt on the cylinders, etc. Registration sheet of the present invention has enhanced features for print and/or cross-defined each or any, or a combination of these grounds.

Registration sheet can have any strength surface. Examples of physical testing the strength of the substrate surface, which also correlate well with the printing characteristics of the basics are the test of resistance to picking and verifying the capture of wax. In addition, both types of tests that are known in this area, correlate well with good surface hardness and recording sheets. Although you can use any of these checks are preferred test of resistance to picking. Test of resistance to picking a standard audit, in which characteristics are measured way Tappi 575, which corresponds to the standard method ISO 3873.

Registration sheet can have at least one surface with the strength, measured by checking resistance to picking, which is equal to at least 1, preferably at least 1,2, preferably at least to 1.4, it is most preferable at least 1.8 m/s The Foundation has a surface hardness, measured by checking resistance to picking, which is at least 2,5, 2,4, 2,3, 2,2, 2,1, 2,0, 1,9, 1,8, 1,7, 1,6, 1,5, 1,4, 1,3, 1,2, 1,1 and 1.0 m/s, including all bands and sub-bands within these limits.

Another famous type of verification is to check for stratification, which is known in this area (and is measured in N/m). The value of the stratification of the registration sheet of the present invention can be any, but preferably more than 150 N/m, preferably more than 190 N/m, it is most preferable more than 210 N/m If the Foundation is the basis of paper for reproduction, the stratification is preferably from 150 to 175 N/m including all the ranges and sub-bands within these limits.

The paper base can be any of the basic mass. It can have high or low base weight, including the basic mass of at least 10 pounds to 3,000 square feet, preferably at least 20 to 500 pounds to 3,000 square feet, more preferably at least 40 to 325 pounds to 3,000 square feet. Basic weight may be at least 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 125, 150, 175, 200, 225, 250, 275, 300, 325, 350. 375, 400, 425, 450, 475 and 500 pounds to 3,000 square feet, including all bands and sub-bands within these limits.

The paper Foundation of the present invention can be of any apparent density. Apparent density can be from 1 to 20, preferably 4 to 14, it is most preferable from 5 to 10 pounds to 3,000 square feet in thickness 0.001 inch. Density can be at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20 pounds to 3,000 square feet in thickness 0.001 inch, including all bands and sub-bands within these limits.

The paper Foundation of the present invention may be of any thickness. Thickness burn to be from 2 to 35 mil, preferably from 5 to 30 mil, preferably from 10 to 28 mils, it is most preferable from 12 to 24 mil. The thickness can be at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34 and 35 mil, including all bands and sub-bands within these limits.

Registration sheet can be printed by creating images on the surface of the registration sheet using traditional methods and printing devices, such as a laser, inkjet, offset and flexo printing. In this way, the registration sheet of the present invention is introduced into the printer hardware and the image is formed on the surface of the sheet. The registration sheet of the present invention can be printed by ink jet methods and devices such as desktop or high-speed commercial. In one embodiment, a way of inkjet printing, where water registering the liquid is applied to the registration sheet of the present invention in the form of an image. In another embodiment, a way of inkjet printing, which includes: (1) introduction of the registration sheet of the present invention in inkjet printing device and (2) the supply drops of paint in the form of the image on the registration sheet, than on the recording sheet create an image. How inkjet printers are well known and described, for example, U.S. patent no 4,601,777, the U.S. patent №4,251,824, the U.S. patent №4,410,899, the U.S. patent №4,412,224 and the U.S. patent №4,532,530. In one embodiment, inkjet printer device uses the method of thermal inkjet printing, in which the paint in nozzles selectively heats the shape of the image, and paint drops are squeezed out upwards on the recording sheet on the form of the image. The registration sheet of the present invention can also use any other method of printing or receive images, for example, printing plotters, acquiring images in color laser printers or copiers, writing with ink pens, ways of offset printing, etc. provided that the toner or ink used to form images that are compatible with the receiving of the paint layer of the registration sheet. This compatibility can be easily determined by the average specialist in the field of printing after reading this description.

The content of the preliminary patent application, US no 60/759,629, filed January 17, 2006, provisional patent application, US no 60/853,882, filed on October 24, 2006, provisional patent application, US no 60/759,630, filed January 17, 2006, a patent application, US no 10/662,699, filed September 15, 2003 G. on April 8, 2004, as the publication №2004/0065423 patent applications with the U.S. patent applications US no.11/655,004, filed January 17, 2007 GI published on 14 February 2008 gcac publication no 2008/0035292 patent application the USA, incorporated herein by reference.

All contents of the "Handbook of engineer-technologist of pulp and paper production", G.A. Smook (1992) Angus Wilde Publications, incorporated herein by reference.

All links, as well as the reference materials listed in this document, is incorporated by reference in respect of the relevant parts relating to the object of the present invention, and all variants of its realization.

The present invention can also be described with reference to the following examples. These examples are intended to be illustrative, but the invention is not limited by the material conditions or parameters of the processes described in the examples. All share and interest expressed in mass units, unless otherwise noted.

The penetration of starch was measured in the cross-section of the sample taken with a razor blade, marking a solution of iodine and receiving the image after about 5 minutes. For each sample measurement was repeated four times. For each sample shows one image which is best presented the General characteristics of penetration of starch. Sample And was completely soaked starch (Figure 1). The sample I had a structure that was to be seen starch on each side of the paper and not containing starch area in the center (Fig 1). Unusual color reaction of the sample can be attributed to the use of oxidized starch Clinton 442.

EXAMPLE 2: Prepared two sizing composition and recording sheets prepared in the device DT according to the Condition And the table 1;

Starch + CaCl 2 (Model 7) and Starch + IAC + l 2 (Model 8)

Four levels of salt: 0, 3, 5, 8 pounds per tonne

Paper with a baseline mass №20

The pressure in the pressure zone: 3 pounds per square inch (Model 7) and 6 psig (Model 8)

Optical microscopy marked iodine samples in cross section showed that both values of pressure I gave patterns (Figure 2). Both values of pressure 3 and 6 psig, respectively, gave similar results print (Figure 3). The combination of the pigment SASO 3 and CaCl 2 gave increased average gamut (Figure 3).

EXAMPLE 3: the Registration sheets prepared in accordance with Condition F from table 1 of the paper, 8.5 x 11 inches. The checklist did not contain CaCl 2 . Sheets 1 and 2 contained 7 pounds CaCl 2 per tonne (Figure 4). Front side (AFS) and the reverse side (SS) were printed and appreciated on average gamut. Heightened colour coverage was observed for the samples 1 and 2.

EXAMPLE 4 (Comparative): Registration sheets prepared in accordance with Condition In table 1:

Starch + 2 l

Starch + IAC + CaCl 2

Four levels of salt: 0,3, 5, 8 pounds per tonne

Paper with a baseline mass №20

To print images for the assessment used the HP printer B9180. A comparative example and the results obtained on sizing press, shown in Figure 5 (average value-of-gamut from Example 2 using the device DT also shown in Figure 5). In General, higher color coverage was observed for the registration sheet, prepared in accordance with Condition But from the table 1. The lower average gamut observed for comparative recording sheets, prepared in accordance with the criteria In table 1.

EXAMPLE 5: Registration sheets prepared in accordance with Condition G of table 1 and printed on the printer Kodak 5300. Estimated gamut, the results shown in Fig.6. Registration sheets prepared in accordance with the Conditions a, b and F of table 1, estimated, and the results are also shown in Fig.6. Higher color coverage was observed for the registration sheet prepared under clause a and F, in relation to comparative recording sheets, prepared in accordance with the Conditions and G.

EXAMPLE 6: 7 shows the average value of the color coverage for samples without pigments, prepared in accordance with the Conditions a, b and G from table 1. Even in the absence of pigment, recording sheets, prepared in accordance with Condition And showed a higher color gamut compared with the comparative recording sheets, prepared in accordance with the Conditions and G.

EXAMPLE 7: Fig shows the average value of the color coverage for containing pigment recording sheets, prepared in accordance with the Conditions a, b and F of table 1. You can see that the presence of pigment increases the average color coverage for both recording sheets, prepared under clause a and F of table 1. These registration sheets also have a higher average gamut in relation to comparative registration sheet is prepared in accordance with the Conditions Century

EXAMPLE 8: figure 9, 10 and 11 shows the results of estimating the density of black when using three printers HP 6122, HP B9180 and Kodak 5300 on the recording sheet prepared under clause a and F, and on the comparative registration sheet prepared in accordance with the Conditions In, D and G.

Without reference to theory, it is possible that the density of inkjet printing for pigmented inks may depend on the concentration of salts on the surface (against the seizure of salt (in pounds per ton)). Suddenly I-structure seems increases the density of inkjet printing and color grip. The pigment added to sizing press, does not improve the print density with less added l 2 , which result in cost savings.

EXAMPLE 9: Registration sheets prepared in accordance with the Conditions and D. Data not shown, but the printing results were mixed for the registration sheet is prepared on the Condition C. Optical microscopy marked iodine samples (not shown) revealed that both Conditions (i.e. with pigment ICC and without him) gave no I-beam structure. One reason may be impregnation reverse side of the sheet at elevated temperatures.

(a) Required two glass plates with polished edges size 2 inches wide and 8 inches in length. To take one of these plates and cut off a piece of double-sided tape with a protective film. Remove the protective film from the one side of the tape and attach the tape to a glass plate. The tape should adjoin densely to a glass plate and have no wrinkles or bubbles of air. Remove the protective film on the other side of the ribbon and cut the tape so that it will not extend beyond the edges of the glass plate.

(b) to Weigh glass plate with tape and record the weight up to 0.0001 g

(c) to Place the piece of paper to test on a flat table. Pressed glass plate with tape (tape down) to a piece of paper to paper stuck to the tape. Trim the paper so that it will not extend beyond the edges of the ribbon.

(d) to Weigh glass plate, tape and paper and write down the weight up to 0.0001 g

(e)to Subtract the weight of the stage (b) of the weight of the stage (d)to determine the mass of scanned paper.

(f) to Place a piece of double-sided tape (without corrugations) on paper, remove the protective film from the one side of the tape. The tape should be longer paper that it acted on both sides of the paper 1 inch.

(g) to Pull one end of the tape, so that it remained on paper, and stop before the end of the sheet.

(h) to Lower the tape to connect sheet, then remove the protective film from the back side of the tape. To place a second glass plate on the ribbon, gluing it to the ribbon. Compress the plate and strip in order to ensure good adhesion of the second plate glass to the tape.

(i) to Pull two glass plates in different directions, to completely separate sheet. Trim the excess tape with the second glass plates. (J) to Weigh the first glass plate, tape and paper and write down the weight up to 0.0001 g

(k) to Subtract the weight of the stage (j) of the weight of the stage (b)to determine the mass of paper left on the first glass plate.

(l) to Subtract the weight of the stage (j) of the weight of the stage (d)to determine the mass of paper, moved to a second glass plate.

(m) to Place a piece of one-sided tape on the paper left on the first glass plate. Remove the tape and re-weigh the first glass plate, tape, and the remaining paper.

(n) to Subtract the weight of the stage (m) of the weight of the stage (k)to to determine how much paper has been removed from a one-sided tape.

(a) Continue remove portions of paper left on the first glass plate until it does not remain 25% of the initial mass verifiable paper (determined in step (e)).

(p) to Collect one-sided tape, samples of paper, label and place in a plastic bag for subsequent analysis.

(q) Repeat steps (m)-(o) with the second glass plate.

(r) Remove the double-sided tape to a glass plate and mark.

Analysis of salt ferrous metal

The order of operations for the full sample sheets (8.5 x 11 inches):

(a) From the sample submitted for analysis was cut off part of the paper weight 2,2,

(b) This part of the paper was placed in 50 ml of water purified by reverse osmosis (water 00), and soaked for two hours.

(c) Aqueous solution is then filtered through a standard filter paper and washed 30 ml of additional water 00.

(d) Then the filtered solution added water 00 to bring the final volume to 100 ml

(e) Solutions then treated with nitric acid and diluted up to 500 ml They are then analyzed using the mass spectrometer with inductive-coupled plasma for determination of the concentration of ions of salt ferrous metal, for example, if the salt is calcium chloride, determine the ions will be Ca, CL. Also, since the framework can contain salt monovalent metal such as sodium chloride, will determine the number of Na to allow one to calculate the exact amount of calcium chloride.

(f) the Amount of salt ferrous metal in the paper calculated from measured concentrations of ions adjusted for the presence of monovalent metal salts, and the result is expressed in parts per million by weight of salt ferrous metal and the mass of the resulting paper.

Modified order of operations for samples of the split list:

(a) the Specimen of paper taped to the ribbon, soaked in 30 ml of water 00 for two hours.

(b) Aqueous solution is then filtered through a standard filter paper and washed 20 ml of additional water 00.

(c) Then the filtered solution added water 00 to bring the final volume of 50 ml

(d) Solutions then treated with nitric acid and diluted to 100 ml Then analyzed using the mass spectrometer with inductive-coupled plasma for determination of the concentration of ions of salts ferrous metals and monovalent metal salts (like the above).

(e) the Amount of salt ferrous metal in the paper calculated from measured concentrations of ions adjusted for the presence of salt monovalent metal, and the result is expressed in parts per million by weight of salt ferrous metal and mass obtained paper (prepared by the method of separation of the sheet).

(f) the concentration of salt ferrous metal then compared with the results obtained in the analysis of the full list from the same foot of paper or condition checks to determine, as salt of ferrous metal full sheet distributed in samples separated list.

Application of the method of separation of sheet and analysis of salt ferrous metal Tested two types of paper, using the method of separation of the sheet to determine the distribution of calcium chloride, salt, ferrous metal sheet. The first type of paper (the sample according to the invention was made at the press experimental type in the dosage rod to cause a size composition, containing starch and calcium chloride on one side of the paper. The second type was available paper, manufactured and sold by company International Paper Company, and this paper contains a composition of calcium chloride and starch incurred in sizing press. The analysis is divided sheet and analysis of complete worksheet shown in table 2.

The results of the analysis of chloride calcium in divided sheet and the full sheet

Full sheet (parts per million l 2 )

Divided sheet (exterior 25%) (parts per million l 2 )

Selling paper

The sample according to the invention

These data show that sold the sheet has a fairly uniform distribution of calcium chloride in the list, with only slightly elevated concentration of chloride calcium on the surface in comparison with the average value of concentration of chloride calcium in the leaf. On the other hand, the sample according to the invention shows a much higher concentration of chloride calcium in the exterior 25% of the list in comparison with the average value of concentration in the worksheet. In fact, if the concentration in the outer 25% of the sheet is divided into four, the result is 1575 parts per million, which is clearly similar to the average value of concentration in the worksheet. This means that almost all of the calcium chloride is located in the exterior 25% of the sheet.

Throughout this document, the ranges of values are used to specify each value in this range, including all sub-bands in it. In the light of the above description of possible numerous modifications and changes of the present invention. It is therefore understood that within the scope of the enclosed claims it can be implemented differently than specifically described above.

1. Registration sheet containing: the basis of a cloth cellulose fibres; and sizing composition comprising binding and salt ferrous metal, wherein said composition is applied to the outer surface or on both surfaces mentioned basis, or near the specified surface, so that the concentration of salt divalent metal the size of at least 51% of the total concentration of not less than 2500 parts per million is situated at a distance which is within 25% of the total thickness of the basis of at least one surface of the mentioned basis, such that the record has a value of Q General , reflecting a measure of the number sizing agent in the transition from the outer edges to the middle of the sheet in the cross section is smaller than 0.5.

2. Registration sheet according to claim 1, characterized in that the concentration of the mentioned salts ferrous metal is within 25% of the total thickness of the basis of at least one surface of the mentioned foundations so that the optical density for the black pigment "OD o " when you print on the recording sheet amounted at least to 1.15.

3. Registration sheet according to claim 1, characterized in that the mentioned effective concentration mentioned salts ferrous metal is at least 6000 ppm.

4. Registration sheet according to claim 1, characterized in that the registration sheet has the sharpness of the edges of the image when printing, less than 15.

5. Registration sheet according to claim 4, wherein the registration sheet is measured way TAPPI t-569 internal communication Scott in the longitudinal direction of not more than 300 j/m 2 .

6. Registration sheet according to claim 4, wherein the sheet has measured way TAPPI t-569 internal communication Scott in the transverse direction is not more than 300 j/m 2 .

7. Registration sheet according to claim 1 having a measured way TAPPI t-569 internal communication Scott in the longitudinal direction of not more than 300 j/m 2 .

8. Registration sheet according to claim 7, with gyroresonant, as measured by the way TAPPI 549, from 0.6 to 1.25%.

9. Registration sheet according to claim 7, wherein the registration sheet is the percentage of KRASNOPEREKOPS less than or equal to 60.

10. Registration sheet according to claim 1 having a measured way TAPPI t-569 internal communication Scott in the transverse direction is not more than 300 j/m 2 .

11. The registration sheet of claim 10, wherein the registration sheet is gyroresonant, as measured by the way TAPPI 549, from 0.6 to 1.25%.

12. The registration sheet of claim 10, wherein the registration sheet is the percentage of KRASNOPEREKOPS less than or equal to about 60.

13. Registration sheet according to claim 1 having gyroresonant, as measured by the way TAPPI 549, from 0.6 to 1.25%.

14. Registration sheet according to claim 1 having the percentage of KRASNOPEREKOPS less than or equal to 60.

15. Registration sheet according to claim 1, characterized in that the mentioned salt is present in the amount of 2.5 to 165 of moles of cations per tonne of paper base with respect to the basis, having a basic mass of 250 g/m 2 .

16. Registration sheet according to claim 1, characterized in that the composition additionally contains at least one member selected from the group consisting of starch, pigment and their combinations.

19. The method of making the recording sheet on any one of claims 1 to 18, including: contact bases, containing cloth cellulose fibres; and sizing compositions containing binder and water-soluble salt of ferrous metal, with viscosity from 50 to 500 sandypaws and salt concentration of bivalent metal not less than 2500 parts per million; controlled placement of binder and water-soluble ferrous salt inside a basis for the production of the recording sheet.

20. The method of claim 19, wherein the contact is carried out in sizing press.