Ultra-smooth sheet material for overprinting, suitable for recycling, and method of its manufacturing

FIELD: printing.

SUBSTANCE: invention relates to a method of manufacturing a smooth or ultra-smooth sheet material for overprinting. It comprises the following steps: manufacturing a multilayer structure consisting of a lower layer of plastic film, an intermediate anti-adhesive layer, and also an outer layer for overprinting, gluing one side of the substrate or the upper side of the layer for overprinting, placement of the substrate on the layer for overprinting with their laminating followed by removal of the plastic film from the layer for overprinting, and this layer for overprinting forms on the sheet of smooth or ultra-smooth side.

EFFECT: invention provides creation of an ultra-smooth sheet material suitable for overprinting and suitable for complete recycling, when possible.

25 cl, 6 dwg, 8 ex

 

The present invention relates to sheet smooth or ultragamma material for printing, recyclable, and method of its manufacture. Such sheet material may be used in various industries such as packaging operation, electronic and optical industries or in the printing industry, for example, as the basis for printing, in particular photographic image.

Known ULTRAGLIDE sheet material can be produced by laminating side of the paper with a plastic film, which creates ULTRAGLIDE side on paper. The paper base is formed of fibrous material, the sides of which have significant roughness, of the order of 20 μm as a whole, i.e., each of its sides formed with depressions and projections, the height differences up to about 20 microns. Laminating the plastic film side of this paper allows to reduce the roughness of this part to very small values, of the order of 1 μm in the case of the film of PET (polyethylene terephthalate).

Paper is a relatively expensive material, production mass production, so it is extremely important that it was recyclable. However, the sheet material is paper-based, ULTRAGLIDE due to the presence of plastic film unsuitable for processing or pererabotki is difficult that does not match any environmental or economic requirements. In fact, in the processing of sheet material on a paper basis, the material is crushed and mixed with water in pulpera to obtain a pasty mass. In the presence of the plastic film fragments remain after grinding in pulper and plastic material clogs up the weight.

At the present level of technology it is impossible to make ULTRAGLIDE sheet material, recyclable, and, if possible, to complete processing.

In addition, such ULTRAGLIDE sheet material not suitable for application to print it, so that it became possible, on a plastic film on the front surface of the plate is covered with a layer of resin for printing. This technique, in particular, used for the production of sheet material on a paper basis for printing and photographic images (in English: "resin-coated photographie papers" - a photo paper with a coating of resin), this sheet material includes a film coating made of PE (polyethylene) and has a smoothness to Beck about 6000 C.

Smooth sheet material can also be made by applying on the side of the paper composition for coating, which after drying forms on paper smooth side. This technique allows you to make smooth the earnest material without the use of plastic film. The composition applied to the paper by the method of irrigation on the surface with a spatula, dragged or alignment with the air stream, the method heliogravure or rental (size or film press, and so on). Side of the paper base to which is applied a composition, has alternately spaced depressions and protrusions, depressions are filled with a composition for coating, and the projections are smoothed due to the cover, which reduces the roughness of the paper. However, this technique does not allow the sheet material is as smooth as in the coating of plastic films, even if this material is subsequently vyglazhivaetsya, for example, by passing through the calender.

Method used at present for making a smooth glossy sheet material, consists of applying a composition for coating a paper base using a mechanical roller with a smooth cylindrical surface and a chrome layer. The degree of smoothness of sheet material according to Beck, obtained using the specified method, is 50, which is considerably less than that of the sheet material with a plastic film covering (about 6000 with film PE).

In addition, it is difficult to get a smooth sheet material by spraying a composition for coating on a relatively rough is the Umag. Indeed, as the above-mentioned grooves on the side of the paper are very bold or numerous, the composition for coating fills these cavities are not completely or it will take too much stock.

This applies in particular to the paper relatively high density, for example, the above 1,10 cm3/g, the sides of which are relatively rough and not suitable for printing. Composition for coating on one side of this paper, even in large quantities, does not provide the manufacture of smooth sheet material and significantly reduces its density. In addition, even if the transmission of such sheet material through the calender allows you to increase its smoothness, it occurs due to loss of density.

Thus, at the present level of technology and satisfactory conditions, it is not possible to make a smooth sheet material on a rough paper based and/or high density.

The aim of the present invention is, in particular, to provide a simple, efficient and economical solution to the problems of modern technology.

Its purpose is a method of manufacturing a smooth sheet material, which is also called ultrapack in the context of the present invention; the degree of f is the spine of this sheet material does not depend on the roughness of paper or in a broader sense used substrate base; this sheet material also does not contain plastic film coating is at least partially recyclable or biodegradable.

In this regard, the present invention provides a method of manufacturing a sheet material for printing, having at least one smooth side, preferably ULTRAGLIDE, and containing substrate, in particular a paper, at least one side of which is at least partially covered by a layer or layers superimposed on one another, according to which:

a/ cook or take a multilayer structure containing at least plastic, preferably smooth, film, anti-adhesion layer and a layer for printing, and anti-adhesion layer fitted between the plastic film and a layer for printing;

b/ glue one side of the substrate and/or the side of the multilayer structure, located on the back side of the plastic film, and place the specified side of the substrate on the specified side of the multilayer structure so as to glue the multilayer structure and the substrate;

c/ remove the plastic film from the layer for printing, and this layer for printing forms found on smooth or ULTRAGLIDE side of the sheet material.

One way of implementing this is part II of the invention the multi-layer structure is produced in advance, to implement the method of manufacturing a sheet material for printing. In this case, the multilayer structure is ready for the implementation of the method of manufacturing a sheet material for printing.

In the present invention smooth or ULTRAGLIDE side of the sheet material is determined by the layer for printing, which is formed on a plastic film called "donor"; the specified layer for printing at this stage is included in a multilayer structure, subsequently it enters the main substrate, called the "recipient". The degree of smoothness of the layer for printing, and hence the degree of smoothness of sheet material, due to the smoothness of the plastic film composed of a multilayer structure and is not dependent of the main substrate. The present invention provides the ability to pass the roughness of the surface of a plastic film on any basis. In other words, the present invention enables to make smooth or ULTRAGLIDE sheet material on any substrate, such as on rough paper and/or paper with a sufficiently high density, for example, equal to or exceeding 1,10 cm3/g, without the inclusion of a plastic film sheet material made in this way.

Sheet material made with p the physical alteration of the present invention, suitable for printing and processing.

In this application under a sheet material suitable for printing, and under the substrate for manufacturing a sheet material for printing refers to a subtle element of (the thickness of which does not exceed 500 μm), preferably elastic and/or flexible.

A sheet of material, or layer for a printing means for sheet material or the layer on which you can print using any method of printing, in particular: offset printing, inkjet or laser printing device, gravure printing, flexo printing, dry toner, liquid toner Electrophotography, lithographs, etc. Layer for printing is, as a rule, a mixture of pigments and at least a binder or a resin for printing based polymer (polymers) type acrylic, vinyl, polyurethane, styrene, based on the starch, polyvinyl alcohol, ethylene or a mixture of these polymers. For use on clean, smooth or ULTRAGLIDE side of the sheet material for printing or layer for printing you intend to use ink. A sheet of material suitable for processing, refers to a sheet material containing no polyethylene film, for example, of thermoplastic or rematerialise material.

The essential feature of the present invention is that the print on the layer for printing does not cause it to structural changes, in particular changes in the physical state or phase (for example, the transition from solid to liquid with subsequent return to the solid state).

Multilayer structure used in the present invention, made or performed as provided in the present invention the method includes, in particular, the bottom layer of plastic film, the intermediate anti-adhesion layer and the outer layer for printing. Anti-adhesion layer covers at least part of the upper side of the plastic film, and a layer for printing covers at least part of the upper side of the anti-adhesion layer.

Plastic film is used as the basis for the manufacture of a layer for printing. This film is not present in the final product, such as sheet material, which is thus suitable for processing. The upper side of the film (layer side for printing) is most preferably smooth, as the quality of the surface of the smooth side of the sheet of material defined by the layer for printing depends on the quality of the surface of this upper side of the plastics is th film. In other words, the smoother is a plastic film of a multilayer structure, the smoother is obtained sheet material.

Plastic film is selected from films made of polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polymers based on polylactic acid (PLA), all polymers based on cellulose etc. Film may have a thickness of about 12 microns.

Preferably, the plastic film is missing and/or not covered polyvoristas vinylidene (PVDF), polypropylene (PP), Teflon, silicon, boron nitride, stearate-chromium chloride or any other material having anti-adhesion properties.

Side of the film located on the side of the layer for printing, is preferably smooth and may have a degree of smoothness on the Beck more than 10,000 C.

Thickness, hardness and glass transition temperature of plastic film has no effect or little effect on the characteristics of the layer for printing. Only the smoothness or roughness of plastic film affects the smoothness or roughness of the layer for printing. The smoother is a plastic film, the smoother will be the layer for printing. The specialist in this area alone must determine what properties of plastic film can affect sh is regulatoty surface layer for printing, and improve these properties depending on the desired final smoothness of this layer for printing.

Anti-adhesion layer of the multilayer structure is applied in some way on a plastic film, for example, by a method of gravure printing. This anti-adhesion layer to prevent adhesion layer for applying printing to the plastic film and to facilitate the separation and removal of the plastic film from the surface layer for printing on the last step when using the above method. Anti-adhesion layer does not change or decreases the smoothness and quality of the surface of that side of the plastic film that is applied to this layer.

Anti-adhesion layer to a greater extent may stick to the plastic film than to the surface layer for printing, that is, the entire anti-adhesion layer, in whole or large part of it will remain glued to the plastic film during its separation from the layer for printing. Thus, it is possible that particles or traces of anti-adhesion layer will remain on the surface layer for printing when removing the plastic film.

In one embodiment, the anti-adhesion layer may have more to stick to the surface layer for printing than to the plastic film, so that part of it will remain on the surface layer for printing in the process of removing the plastic film.

In another embodiment, the anti-adhesion layer is divided into two parts by the separation of plastic film, one part remains on the plastic film, the other part of the surface layer for printing.

The multilayer structure may include two anti-adhesion layer between the plastic film and a layer for printing, these two layers are separated from each other when removing the plastic film (one anti-adhesion layer remains on the plastic film, other anti-adhesion layer remains on the surface layer for printing).

Option, in which part of the anti-adhesion layer or the entire layer remains on the surface layer for printing, is particularly preferred, since the sheet material is intended for use as base material during the application of stereotypes. The application of stereotypes includes extruding and molding at least one polymer (such as polyurethane (PU), PVC skin (PVC), and so on) on a base covered with anti-adhesion layer. This polymer may have a textured surface, giving the sheet material special appearance (for example, imitation leather). What anti-adhesion layer remains on the surface of a sheet material made in accordance with the present invention, allows to avoid the well-trodden deposition of such a layer on this sheet material for applying stereotypes, what is the advantage, in particular, from the point of view of time and cost in the manufacture of substrate for the application of stereotypes.

Anti-adhesion layer has a thickness of less than or equal to 5 microns, the preferred value is 1 μm. Anti-adhesion layer may contain silicone (s), siloxane (s), polysiloxane (s) or their derivatives, complex(-s) Werner, such as the stearate-chlorides of chromium, or waxes of polyethylene, polypropylene, polyurethane, polyamide, PTFE, and so on

Mostly, the anti-adhesion layer does not contain polypteridae vinylidene (PVDF).

Layer for printing in the multi-layer structure may be selected from resins for printing, paper coatings, and so on

In this application under the resin for printing refers to a material based on polymers of acrylic, polyurethane, polymethylmethacrylate, butadienestyrene, vinyl acetate, polyamide, nitrocellulose or other cellulose, polyvinyl alcohol polymers, polymers based on starch and so on; this material is usually applied in liquid form and hardens method of drying/heating or by irradiation with ultraviolet or electron radiation.

Under the paper covering (in English-"paper coating", "paper coating") or a composition for coating refers to whom azizia, containing binder and pigments. The binder may be based on acrylic, polyurethane, polymethylmethacrylate, butadienestyrene, vinyl acetate, polyamide, nitrocellulose and other cellulose, polyvinyl alcohol, starch or mixtures of the above substances. The pigment may be chosen from the following components: calcium carbonate, kaolin, titanium dioxide, talc, silicates, mica, mother-of-pearl particles, polymeric pigments (polystyrene PS, polyurethane PU, and so on) or their mixtures. The ratio of binder and pigment is about 5-50%, preferably 8-25% (dry weight). In the paper coating composition, the proportion of pigments in the main higher than the percentage of binder in order to ensure the formation of a porous structure, which will improve the absorption of the ink. Conversely, in the layer for thermal proportion of the binder is greater than the ratio of the pigment, since the formation of the porous surface is not the goal.

The plastic material used in the composition layer for printing (as pigments and/or binders), easily destroyed and not pollute the pulp during its processing. Plastic film, however, retain existing links and clog the filters in the formation of a suspension of paper pulp. Water-soluble binders (such as starch, is polivinilovy alcohol PVA, and so on) is particularly preferred in this case, since the processing they dissolve in water.

Paper coating can, in particular, to contain a dispersant and/or a regulator of rheological properties, and/or dye, and/or surface-active substance and/or additive carrier. This additive-media can be used to reduce the surface resistance of the sheet material.

Preferably, the layer to print does not contain anti-adhesion agent and/or product, which can reduce the surface energy of this layer, such as a composition with the addition of silicone or similar, with the addition of PVDF, PP, Teflon, silicon, boron nitride, and so on; this type of agent or product may be required for printing layer thermally, in particular, to avoid sticking of the paper to the tape printing device. Layer for printing, respectively, the present invention is not suitable for thermal method of printing.

Layer for printing can be formed of multiple sublayers, which are layered one upon the other, each sublayer is a layer for printing and is selected from those listed previously (resin for printing, paper coating, and so on).

Layer for printing may have a thickness of less than or equal to 30 μm, preferably less than 15 μm, and better still less than or equal to 10 MK is. Weight per square meter in grams for him is not more than 30 g/m2preferably not more than 15 g/m2and even better - 10 g/m2. Layer for printing may, for example, have a thickness and weight per square meter in grams, not greater than or equal to the following combined values: 10 μm and 10 g/m2, 3 μm and 10 g/m2, 2 μm and 10 g/m2, 5 μm and 5 g/m2, 3 μm and 5 g/m2, 2 μm and 5 g/m2, 5 μm and 2 g/m2, 3 μm and 2 g/m2or 2 μm and 2 g/m2.

Layer for printing can be applied to the anti-adhesion layer by any method, such as gravure printing method.

Layer for printing can be applied to the anti-adhesion layer in a liquid or semi-liquid state, after which it is cured by the method of drying, heating or irradiation with ultraviolet or electron rays. After curing and/or drying the layer for printing contact with the smooth side of the plastic film through the anti-adhesion layer, forms a smooth side, located on the side of the plastic film.

Layer for printing is dried or cured prior to its transfer to the substrate, in particular, not to change the surface roughness of this layer is provided with a plastic film. In other words, the multilayer structure is formed mainly on the time, when the transfer layer to the printing substrate, and a layer for printing is when transferring the substrate in a solid or dry state, i.e. at stages b/ and c/ fabrication process according to this invention. The roughness layer for printing is formed in the manufacturing process of the multilayer structure.

According to this invention the manufacture of the layer for printing is executed regardless of the manufacturing layer of the main substrate. This gives the possibility to use this technique using industry standard tools that will ensure optimal production speed.

The smooth side of the sheet material may have a degree of smoothness on the Beck approximately 900 or 1000, preferably more than 2000, and more preferably more than 5000 C. In this application under smooth or ULTRAGLIDE party to understand the surface, with the degree of smoothness by Beck in excess of about 900 or 1000, preferably greater than 2000 and preferably above 5000 S.

This smooth side may have a brightness greater than 70%, and preferably greater than 80%, the brightness is measured, the value 75 in accordance with the method TAPPI® T om-92. The brightness can be equal to or exceed the brightness of the photographic paper or coated paper from resins containing plastic film.

mnogosloyna structure may include at least one additional layer, deposited on the layer for printing on the reverse side of plastic film, free party this additional layer or an additional layer, separated from the plastic film is on stage b/ for gluing and drawing on the above side of the substrate.

The additional layer or layers can be functional or not functional. They may, for example, to perform the function of an insulator (dielectric) or to form a barrier (gas, such as oxygen, for liquids, such as water, fat, and so on).

When the multilayer structure includes only one additional layer, this layer is on the upper side of the layer for printing, that is, on the side of the layer for printing, placed on the reverse side of plastic film multilayer structure. This additional layer may have any structure, it may not be intended for printing. In the case where the multilayer structure contains two or more additional layers, these additional layers are layered one on another and are spaced above the upper side of the layer for printing. For the deposition of additional layers on the layer for printing can be used in various ways, as mentioned above, and other.

The multilayer structure may include the more than three of the above items (plastic film, anti-adhesion layer and a layer for printing), one or more additional layers that may be suitable for printing or not, and are superimposed on the layer for printing (on the reverse side of plastic film). The multilayer structure may, in particular, to include either the adhesive layer or adhesive film covering layer, separated from the plastic film (i.e. the layer for printing or additional layer).

Stage b/ manufacturing process according to this invention is the sizing of the side of the substrate for decision layer for printing, or hand multilayer structure, located on the back side of the plastic film, and in the imposition of these parties to each other so that their lock.

The substrate may be selected from paper, onion skin paper, cardboard, coated paper or paper with pre-applied coating. This paper may have a large enough density equal to or exceeding 1,10 cm3/g, preferably equal to or greater than 1.3 cm3/g, preferably greater than or equal to 1.4 cm3/g, and still more preferably equal to or greater than 1.5 cm3/year

The method of manufacture according to this invention allows the sheet material that has both dostat is a rule high density and smoothness, that was impossible at the present level of technology. Indeed, at the present level of technology, it was impossible to produce a sheet material that has both a sufficiently large density and high surface quality. From inexpensive materials, it was possible to make the substrate a sufficient density. In the case of paper pulp could include cellulose fibers, a binder and a minor amount of additives or filler, such as starch.

In one example implementation of the present invention a method of manufacturing leads to a slight, 2-5%, the decrease of the density of the paper substrate.

Smooth or ULTRAGLIDE sheet material, with considerable density, made according to this invention, provides a good ability for printing and has a low weight per square meter in grams, so you can use it for packaging, but it has a sufficiently high rigidity.

B/ method of manufacture, the side adjacent to the substrate, or loose fitting layer for printing, or an additional layer of a multilayer structure appropriate glue glue.

In another example implementation of the present invention, both the above-mentioned side of the substrate and the layered structure taped the Ute simultaneously or sequentially one after another.

The sizing process consists of applying a layer of glue on the specified party or such party in any way, such as, for example, a method of gravure printing. The adhesive may be thermal and non-thermal type, ultraviolet or chemical curing. The adhesive may be applied to one or each of the indicated direction in the liquid or not liquid form (in the case of, for example, thermoadhesive film). This adhesive is selected from among the following polymers: acrylic, polyurethane, polymethyl methacrylate, butadiene, styrene, vinyl acetate, polyamide, nitrocellulose or cellulose all other types of polymers based on polyvinyl alcohol or starch. One layer or each layer of adhesive may have a thickness of less than or equal to 10 μm, preferably less than or equal to 3 microns.

In another example implementation of the present invention, the adhesive is applied on the specified side of the multilayer structure in the process of formation of this structure. This glue, thus, forms part of a multilayer structure. The adhesive may be formed using a thermosetting adhesive layer, this layer is activated by heating in the process of applying a multilayer structure on the basis of the (recipient).

The structure of the adhesive and the process of its application (on film and/or paper) can seriously affect the final surface roughness of the paper. It is very important, for example, h is ordinary adhesive was applied uniformly, without the formation of voids between the paper and the layer for printing.

Speaking about the homogeneity of the adhesive, it should be noted that it is preferable to apply the adhesive evenly to prevent application of excessive or insufficient amount of glue in some places that will lead to irregularities on the surface of the finished sheet material. Preferably, the adhesive has hardened on the substrate (film or paper), has reached a satisfactory surface tension and rheological properties.

The method of applying the adhesive may also be important. Preferred are methods that provide the least irregularity of application, such as gravure printing (drawing with the help of reverse rollers or light touch). The application is to maximize the filling of voids and irregularities on the surface of the paper. As an example: if the paper has a medium (for example, Sa) a surface roughness of 20 μm, the thickness of the adhesive layer should be at least 10 μm, which is preferable to fill the pores. Apply glue better on paper, because it has a large surface roughness. If the glue on the paper applied in insufficient quantity, between the surface of the paper and a layer for printing voids. While printing these voids are the places is rupali paper, which can prodavatsa when pressed or break under tension.

Preferably the thickness of the layer of glue applied to the paper and/or on the layer for printing, equal to or greater than half the average surface roughness of the paper (e.g., Ra or Sa). In one example implementation of the present invention, the adhesive is applied at least on one side of the substrate in step b/, the thickness of the applied layer of the adhesive is equal to or greater than half the average roughness of the side of the substrate, preferably it is equal to this average roughness.

The adhesive can be water-based, solvent-based, solvent-free, bicomponent or monocomponent.

The adhesive allows you to lock the layer for printing (or an extra layer on the substrate and, if necessary, to compensate for the surface roughness of the substrate. The glue fills, in particular, depression is the side intended to cover the substrate, without changing the properties of the substrate, such as its density.

Stage b/ method of manufacture consists, therefore, in applying the specified side of the substrate on the specified side of the multilayer structure so as to be laminated or glued to each other. Layer for printing when this falls between the substrate and the adhesive on one side (and in some cases one or more additionally the mi layer and the plastic film and the anti-adhesion layer on the other.

In the case when for bonding the substrate to the multi-layer structure is used thermoadhesive glue, coating the substrate on the multilayer structure is in a hot state at a certain temperature, for example from 50 to 200°C. In one embodiment, the deposition and adhesion of the substrate to the multilayer structure can be carried out at ambient temperature.

May require slight pressure to ensure the best adhesion layer for applying printing to the substrate in the presence of a layer of glue.

Temperature and/or pressure used during deposition and gluing, should not change the layer properties for printing, in particular surface condition of his party located from the side of the plastic film. For example, a layer for printing should not soften at high temperatures, as this could lead to a change and/or deterioration of the surface of its side chain-side plastic film.

Stage c/ method of manufacture consists in removing the plastic film from the surface layer for printing and the substrate so that the layer for printing (and in some cases, an additional layer/layers of the multilayer structure) remained on the substrate. Layer for printing, and in some cases, an additional layer (s) of multi-stakeholder who oinoi patterns are transferred with a plastic film, called the donor, of a multilayer system on a substrate, which is called the recipient.

As mentioned above, at least part of the anti-adhesion layer, and preferably a large part or the entire of anti-adhesion layer is entirely able to stay on the plastic film, so it is removed from the surface layer for printing when removing the plastic film. Side layer for printing, which was located on the side of a plastic film composed of a multilayer structure, deprived of coverage, and this side forms a smooth side of the sheet material.

The transfer layer to the printing multilayer structure on a substrate on the stage b/ and c/ method of manufacture may be carried out as follows - if a substrate and a multilayer structure represents a rolled tape.

The lamination or bonding of the multilayer structure and the substrate can be performed by passing these two elements through the parallel adjacent to each other with mechanical rollers rotating in opposite directions. The thickness of the resulting product depends on the distance between the rollers. After drying or curing of the adhesive plastic film is removed from the sheet material at the time of his capture as a mechanical roller.

One of note is the moat implementation of this invention, the sizing is performed on the multi-layer structure or on the substrate, the glue is dried, after which these elements are superimposed on one another with the use of high temperature or pressure of a certain value.

The method of manufacture may, in particular, consist in the fact that before carrying out stage b/ the specified side of the substrate previously covered by at least one glossy layer containing one or more thermoplastic polymers (such as polystyrene, polyurethane, acrylic and so on) or a mixture of pigments such as kaolin, calcium carbonates, talc, titanium dioxide, etc. or combinations thereof) and at least one binder (based on acrylic, polyurethane, polymethyl methacrylate, butadiene, styrene, vinyl acetate, polyamide, nitrocellulose or cellulose of any other kind, starch and PVA).

This pre-treated side of the substrate to improve its smoothness can also be filtered through a calender to phase b/.

The method of manufacture according to this invention may include an additional step which consists in impregnating a sheet material paint with electrical and/or optical properties.

The present invention also concerns a method of manufacturing a multilayer structure including at least or consisting of plastic film, anti-adhesion layer and with the HHS for printing, moreover, the anti-adhesion layer is placed between the plastic film and a layer for printing.

The present invention relates to a method of printing on sheet material made according to the method described above, this method includes printing on the sheet material without changing the layer properties for printing, that is, without softening or melting of this layer during printing. On sheet material, the printing may be carried out, for example, the offset method, using an inkjet or laser printing device, method, gravure printing, flexographic printing, dry toner, liquid toner Electrophotography, lithographs, etc.

The present invention relates also to a method of manufacturing a sheet material for applying stereotypes, having at least one smooth side and containing a substrate, in particular a paper, at least one side of which is at least partially covered by a layer or layers superimposed on one another, according to which:

a/ cook or take a multilayer structure containing at least a plastic film, anti-adhesion layer and a layer for applying stereotypes and anti-adhesion layer fitted between the plastic film and a layer for applying stereotypes;

b/ glue one side is the substrate and/or the side of the multilayer structure, located on the back side of the plastic film, and place the specified side of the substrate on the specified side of the multilayer structure so as to join a multi-layer structure and the substrate;

c/ remove the plastic film from the layer for applying stereotypes, and this layer forms found on the smooth side of the sheet material.

Layer for applying stereotypes represents, for example, a layer of PVA. Layer for applying stereotypes can have anti-adhesion properties.

The present invention also relates to a sheet material for printing, having at least one smooth side, mainly ULTRAGLIDE; this sheet material includes a substrate, in particular a paper, at least one side of which is at least partially covered with one or several layers, and the layer for printing forms found on smooth or ULTRAGLIDE side, and this smooth or ULTRAGLIDE side has a degree of smoothness on Beck with more than 900 or more than 1000, preferably greater than 2000 and preferably above 5000 S.

Smooth or ULTRAGLIDE side of the sheet material may have a brightness above 70%, and preferably more than 80%, the degree of brightness of 75° according to the TAPPI method T om-92.

Layer for printing on the sheet is the material can have a thickness of less than or equal to 30 μm, preferably less than 15 μm, and better still less than or equal to 10 μm. Weight per square meter in grams for him is not more than 30 g/m2preferably not more than 15 g/m2and even better - 10 g/m2. Layer for printing may, for example, have a thickness and weight per square meter in grams, not greater than or equal to the following combined values: 10 μm and 10 g/m2, 3 μm and 10 g/m2, 2 μm and 10 g/m2, 5 μm and 5 g/m2, 3 μm and 5 g/m2, 2 μm and 5 g/m2, 5 μm and 2 g/m2, 3 μm and 2 g/m2or 2 μm and 2 g/m2.

The present invention relates also to the use of sheet material for printing, as described above, for the manufacture of optical or electrical component; this sheet material impregnated with at least one dye having electrical and/or optical properties.

The sheet material according to this invention can be used with electronic organic dyes for electronic units, such as dyes for manufacturing RFID tags (radio frequency identification) systems display or detection, and so on, directly from the sheet material.

At the present level of technology RFID tags could be made of sheet material formed of a plastic film of polyethylene Ter is phthalate (PET). However, this plastic film has a relatively small resistance to mechanical and thermal stresses, which limits the possible use of such marks and prevents the saturation of the paint film at high enough temperatures. Also PET film readily recyclable. Conversely, as the substrate sheet material according to this invention of paper, such sheet material has better resistance to mechanical stress and high temperatures.

Sheet material for printing, soaked in paint, with electrical properties, includes, whenever possible, the elastic substrate and the layer for printing with low conductivity may or may not have it. This type of sheet material can be used for the organic semiconductor thin film using organic dyes-conductors or semiconductors.

The sheet material according to this invention can equally be applied to manufacture components for optical devices such as waveguides, holographic images, and so on

In one example of the manufacturing method, described previously, to stage a/ can be a preliminary step in the manufacture, for example by engraving, images of the depressions is/or embossed elements on the side of the plastic film, intended for reception of anti-adhesion layer and the layer for printing; and a layer for printing is intended to take the form of these images to contain the imprint of the specified side of the plastic film.

In this case, the transfer of the surface roughness with film on the layer for printing is carried out by simultaneous transfer of the smoothness of the surface and a relief image on the film. Image applied to the layer for printing, represent a smooth surface and/or smooth inner surface and well-defined. This method is particularly preferred for the manufacture of optical components described above.

The present invention relates also to the use of sheet material for printing, as described above, for printing photographic images, for the manufacture of packaging and/or for applying stereotypes.

The present invention and its distinguishing features and advantages will be better understood after reading the following description of some examples and studying the accompanying drawings:

Fig.1 is a schematic illustration of the steps of the method of manufacturing a sheet of smooth or ultrapatch material for printing according to the present invention.

Fig.2 represents shematicheskoe image variant implementation of the method of manufacture according to this invention.

Fig.3 and 4 are a schematic illustration of the method of performing the step in which the transfer is performed in accordance with the present invention.

Fig.5 and 6 represent the image side of the paper base and sides smooth or ultrapatch sheet material made according to the present invention, obtained using scanning electron microscope.

In Fig.1 presents a schematic representation of the stages a/, b/ and C/ a method of manufacturing a smooth or ultra smooth sheet material 10, are fully recyclable, according to the present invention.

Stage a/ method consists in the preparation of the multilayer structure 12 containing the lower plastic film 14, an intermediate anti-adhesion layer 16 and top layer for printing 18. The preparation of this structure 12 may be executed in one or more successive stages.

Anti-adhesion layer 16 and the layer for printing 18 can be simultaneously printed on the plastic film 14, for example, using a spatula.

In one example implementation of anti-adhesion layer 16 is applied on the plastic film 14, after which the layer for printing 18 is applied on the anti-adhesion layer.

The quality of the surface of the upper side 20 of plastic film 14 is transferred to the lower side of the layer 22 for printing 18 (using anti-adhesion layer 16). The properties of the layer 22 for printing, thus, are determined by the properties of the side 20 of plastic film 14.

In one example, the rigidity of the film and paper is checked using the apparatus for measuring terrain type ALTISURF 500 company ALTIMET. The first film has proven rigidity (for example, Sa) 1 µm. This film was used for the transfer layer to the printing paper Bristol® manufacturing company Arjowiggins. The stiffness of this layer for printing is 1.1 μm. This film was used for the transfer layer to the printing on other paper brands Bristol®. The measured stiffness of this layer for printing is 7 μm. Stiffness (roughness) of the surface of the film is well tolerated with film layers for printing. After drying and/or curing the layer to the printing surface characteristics 22 remain constant and should not change in the subsequent steps of the method, in particular when the transfer layer to the printing 18 on a substrate 24, such as paper for cover.

Layer for printing 18 may be made of resin or varnish for printing or paper coatings containing the binder and pigments. As a variant, the layer for printing may consist of two or more sublayers, which are made of lacquer for application of PECs and or paper coatings. In the case where the layer for printing consists of two sublayers, namely coats of varnish for a printing layer and paper coatings, varnish for printing is located below or above the paper layer of the coating so that the bottom side 22 of the specified layer for printing was established varnish for printing or paper coating.

Stage b/ method of manufacture consists in applying a layer or film of adhesive 26 on the upper side 28 of the layer for printing 18 or on the lower side 30 to cover the substrate 24 or on both sides 28 and 30 with the subsequent imposition of sides 28 and 30 against each other for laminating or bonding the multilayer structure 12 and the substrate 24, with the formation of the laminated or glued product 32.

Stage/ method of manufacture is to remove the plastic film 14 and the anti-adhesion layer 16 from the surface layer for printing 18 so that the substrate 24 is left only this layer 18 (with a layer of adhesive 26).

Phases b/ c/ can be performed simultaneously or sequentially. In the latter case, the adhesive layer 26 should preferably be in a dry and/or dry condition in the process of removing the plastic film 14.

In step with/ side layer 22 for printing 18 opens, remaining smooth or ULTRAGLIDE.

Part of protivohode the ionic layer 16 may remain on the side of the layer 22 for printing 18 after removing the plastic film.

Layer 18 is suitable for printing using any suitable method, paint glides on smooth or ULTRAGLIDE side 22 of the sheet of material 10.

In one example, the substrate 24 can be made of coated paper or paper with pre-coated, i.e. paper, one side of which is coated or pre-coating 33, which contains one or more thermoplastic polymers, or a mixture of pigments and binders. This layer or previously applied coating 33 is designed to be applied on the side 30 of the specified substrate, it preferably becomes smooth by passing it through a calender. It is designed for gluing on the side of the layer 28 for printing 18.

In Fig.2 shows another example implementation of the method of manufacturing according to the present invention, which differs from the method described above, according to the scheme in Fig.1 in that the multilayer structure 12' includes, in particular, one additional layer 34 deposited on the upper side 28 of the layer for printing 18.

On the side of the layer 28 for printing 18 may be applied (simultaneously or sequentially) multiple overlapping additional layers 34; each additional layer 34 may be designed for applying print is or not.

B/ bottom side 30 of substrate 24 or the upper free side 36 additional layer 34 (the most remote from the plastic film, in the case when the structure 12' is composed of several sub-layers) covered with glue 26; in one embodiment, both sides 30 and 36 are covered by the adhesive 26.

Phase c/ the multilayer structure 12' and the substrate 24 are pasted or superimposed on each other by lamination. With the formation of the laminated or glued product 32', and then removed the plastic film 14 and the anti-adhesion layer to reveal smooth or ULTRAGLIDE side layer 22 for printing 18 of sheet material 10'.

As in the variant shown in Fig.1, the sheet material of Fig.2 may consist of a substrate 24 with pre-coated 30 to increase the degree of smoothness. Pre-applied coating 33 of the same type as that described in the embodiment depicted in Fig.1.

Fig.3 and 4 show in schematic form how to perform stage/ transmission according to the manufacturing method described in this invention.

The first roller 40 is intended for retracting roll laminated tape 12 (consists of a plastic strip 14, the anti-adhesion layer 16 and layer for printing 18 and, in some cases, an additional layer/layers 34). The second shaft is to 42, parallel and adjacent to the first roller 40, is intended for retracting roll of tape substrate 24.

Rollers 40 and 42 rotate in opposite directions and are located at a small distance from each other, the multilayer structure 12 and the substrate 24 are stretched between the rollers and pressure are combined with each other to ensure their lamination or gluing.

The adhesive 26 may be applied to a multilayer structure 12 and/or substrate 24, as mentioned previously; it is preferable to do this on the bonding step or immediately after this step. In the latter case, the adhesive 26 can be injected between the structure 12 and the substrate, preferably at the time of their passing between the rollers, which is schematically represented by a double arrow in Fig.3.

The third roller 44 pushes the sheet formed by the substrate 24 and the layer for printing 18, while the plastic film 14 and the anti-adhesion layer 16 is moving in the opposite direction to separate from the sheet 10.

In Fig.5 and 6 are provided to the image side of the paper or the main substrate 24 and a smooth or ULTRAGLIDE the surface of the sheet 10 according to the present invention obtained by a scanning electron microscope.

The paper base (Fig.5) in this case consists of mixed cellulose fibers forming the rough side. Extent the ü roughness Sz this side is 19.7 μm, that is, the maximum surface height between the highest ledge and deepest depression is 19.7 microns.

The sheet material according to the present invention (Fig.6) has a smooth or ULTRAGLIDE side formed by the layer for printing, the roughness of which Sz is 1.01 μm, which is comparable with the characteristic of paper, covered with plastic film, the roughness of which Sz is 1.5 μm. given the existing level of technology.

This roughness value of 1.01 μm sheet material in the present invention is given for reference and illustrated by a particular example implementation of the invention.

Below is a description of 15 other examples illustrating this invention.

Example 1: Making a smooth or ultrapatch sheet material for printing offset.

Was made smooth or ULTRAGLIDE sheet material according to the present invention for printing by offset containing layer for printing And the following composition:

The composition of the layer And
PigmentsCalcium carbonate Hydrocarb® 60 OG (Omya)1248 g
Binder Aqueous dispersion of a copolymer of n-butyl acrylic-nitrile-styrene Acronal® S504 (BASF)300 g
DisperserSour sulfoxy-isooctyl ether, sodium salt3 g
The rheology modifierAqueous dispersion of a copolymer of acrylic Sterocoll® FD (BASF)0.6 g
Fixing agentNonionic surfactants Surfynol® 420 (Safic-Alcan)0.2 g

Layer for printing And has a final weight concentration of 50%, a viscosity of 100 SP, measured by the Brookfield viscometer®.

Layer And is applied to the side of the plastic film of PET, which is pre-coated with anti-adhesion layer on the basis of stearate-chloride chromium. Layer And is applied on the film in an amount of 10 g/m2after which the layer And dried in an oven at 70°C. Thus have a multilayer structure consisting of a plastic film of PET, anti-adhesion layer of the stearate-chloride of chromium and a layer for printing A.

The free side of the layer A, that is, the side located on the opposite side of plastic sheeting, glued with Super glue-Lok® 364 production company "National Starch". Glue NAS is referring to the layer And the rate of 3 g/m 2. Taped side layer And is applied on a substrate made of paper Bristol® 335 g/m2production company Arjowiggins, and then the entire complex is dried in an oven at 70°C. At this stage b/ manufacturing process is complete.

Plastic film and anti-adhesion layer is then removed (step C/, such that the paper substrate has only a layer for printing a and the adhesive layer.

Manufactured sheet material suitable for printing offset. It is not suitable for printing by thermal means. This is confirmed by the test of carrying out printing on the obtained sheet material in example 1 using a thermal printing device Canon Selphy SR. Transfer yellow, blue-green and purple colors were poorly enforced, the black color was not transferred at all. The final image was unsatisfactory.

Example 2: Making a smooth or ultrapatch sheet material for printing offset on the basis of full paper or paper with a sufficiently high density.

Layer for printing As in example 2 was manufactured and applied in the same manner and under the same conditions as those discussed in example 1, plump paper Elementa® bulk production company Arjowiggins. This paper is the initial density of 1.4 cm3/year

Example 3: Making a smooth or ultrapatch sheet material for printing offset paper with a pre-applied coating.

Layer for printing As in example 3 was manufactured and imposed the same way and under the same conditions as in example 1, on paper with pre-coated Maine Gloss® manufacturing company Arjowiggins. This paper has the original degree of smoothness on the Beck 400 C.

Example 4: Production of smooth or ultrapatch sheet material for printing offset.

Made of painted sheet material, smooth or ULTRAGLIDE according to the present invention for printing offset printed layer of the following composition:

The composition layer for printing
PigmentsCalcium carbonate Hydrocarb® 60 (Omya)1248 g
BinderAqueous dispersion of a copolymer of n-butyl acrylic-nitrile-styrene Acronal® S504 (BASF)300 g
DisperserSour sulfoxy-isooctyl ether, sodium salt
Agnique® EHS E (Cognis)
3 g
The rheology modifierAqueous dispersion of a copolymer of acrylic Sterocoll® FD (BASF)0.6 g
Fixing agentNonionic surfactants Surfynol® 420 (Safic-Alcan)0.2 g
DyeBlue Levacell® liq (Bayer)0.1 g

Layer for printing And has a final weight concentration of 50%, a viscosity of 100 SP, measured by the Brookfield viscometer®.

The layer is applied on the side of the plastic film of PET, pre-coated with anti-adhesion layer on the basis of stearate-chloride chromium. The layer is applied on the film in an amount of 10 g/m2. The layer is then dried in an oven at 70°C. Thus have a multilayer structure consisting of a plastic film of PET, anti-adhesion layer of the stearate-chloride of chromium and a layer for printing Century.

The free layer side, that is, the side located on the reverse side of plastic sheeting, glued with Super glue-Lok® 364 production company "National Starch". Glue is applied to the layer At the rate of 3 g/m2. Taped side layer is applied on a substrate made of paper Bristol® 335 g/m2production is tion company Arjowiggins, then the whole complex is dried in an oven at 70°C.

Plastic film and anti-adhesion layer is then removed (in step with/), order on a paper substrate remained only the layer for applying printing and glue.

The resulting paper has a completely uniform color.

Example 5: Production of smooth or ultrapatch sheet material for printing offset with low surface resistance.

Made of painted sheet material, smooth or ULTRAGLIDE according to the present invention for printing offset printed layer With the following composition:

The composition layer for printing
PigmentsCalcium carbonate Hydrocarb® 60 OG (Omya)1248 g
BinderAqueous dispersion of a copolymer of n-butyl acrylic-nitrile-styrene Acronal® S504 (BASF)300 g
DisperserSour sulfoxy-isooctyl ether, sodium salt3 g
Additive ExplorerAqueous dispersion of polymer-wire the ICA 3 g
The rheology modifierAqueous dispersion of acrylic polymer Sterocoll® FD (BASF)0.6 g
Fixing agentNonionic surfactants Surfynol® 420 (Safic-Alcan)0.2 g

Layer for applying printing is the final weight concentration of 50%, a viscosity of 100 SP, measured by the Brookfield viscometer®.

The layer is applied on the side of the plastic film of PET, pre-coated with anti-adhesion layer on the basis of stearate-chloride chromium. The layer is applied on the film in an amount of 10 g/m2. Then the layer is dried in an oven at 70°C. Thus have a multilayer structure consisting of a plastic film of PET, anti-adhesion layer of the stearate-chloride of chromium and a layer for printing Century.

Free side layer, that is, the side located on the reverse side of plastic sheeting, glued with Super glue-Lok® 364 production company "National Starch". Glue is applied to the layer With the rate of 3 g/m2. Taped side layer is applied on a substrate made of paper Bristol® 335 g/m2production company Arjowiggins, and then the entire complex is dried in an oven at 70°C.

Plastic plank and anti-adhesion layer is then removed in step with/), in order on the paper substrate has only a layer for printing and With a layer of glue.

The resistance of the paper obtained in this way, relatively small, of the order 3,107. This resistance is lower than that of the paper in example a, where it is about 1,1010.

Example 6: Production of smooth or ultrapatch material for printing by an inkjet printer.

Manufactured sheet material smooth or ULTRAGLIDE according to the present invention for printing an inkjet printer with a printed layer D of the following composition:

The composition layer for printing D
PigmentsAlumina Disperal HP 14-2 (Sasol)1000 g
BinderPolyvinyl alcohol Mowiol 47-88 (Seppic)100 g
Fixing agentNonionic surfactants Surfynol® CT (Safic-Alcan)1 g

Layer for printing D has nite weight concentration of 14%, a viscosity of 50 JV, measured by the Brookfield viscometer®.

Layer D is applied to the side of the plastic film of PET, which is pre-coated with anti-adhesion layer is based stearate, chloride chromium. The layer is applied on the film in the amount of 15 g/m2. Layer D is then dried in an oven at 70°C. Thus have a multilayer structure consisting of a plastic film of PET, anti-adhesion layer of the stearate-chloride of chromium and a layer for printing D.

The free side of the layer D, that is, the side located on the reverse side of plastic sheeting, glued with Super glue-Lok® 364 production company "National Starch". Glue is applied to the layer D at the rate of 3 g/m2. Taped side of the layer D is superimposed on a substrate made of paper Bristol® 335 g/m2production company Arjowiggins, and then the entire complex is dried in an oven at 70°C.

Plastic film and anti-adhesion layer is then removed in step with/), order on a paper substrate remained only the layer for printing D and the adhesive layer.

Results: various sheet materials made in examples 1-6 were studied. For sheet materials were measured the following parameters: the mass per square meter in grams, thickness, strength, degree of smoothness, brightness, resistance, and suitability for printing.

Measurements obtained in the following way:

Weight per square meter in grams was measured according to standard ISO 536 (1976) using a balance Sartorius® with a limit weighing 2200 g, accuracy 25±0,1 g

Strata is and was measured according to the norm ISO 534 (1988) using a micrometer MTS MI20.

The density (or specific weight) was measured according to the standard NFQ 03-017.

The degree of smoothness by Beck was measured according to standard ISO 5627 (1984) using the apparatus Büchel® 131 ED.

The brightness was measured for 75° TAPPI method® T om-92 using the apparatus Byk-Gardner® micro-gloss 75°, the model 4553.

The surface resistance was measured by the method ASTM D257 - 10 of 83, with the help of Philips RM Multimeter.

Suitability for printing offset was measured during the test on the absorption parametricheskikh dyes according to the method of PAGE n°9. Test "parametricheskie dyes, allowing quantitative assessment of the absorption capacity of the paper and the speed of penetration of the dye in this paper, based on the method of application of the special dye, forming a black color on the paper, and the study of its behaviour over time; the test print inkjet printer was performed using inkjet printers Epson 2400 and Canon ip 8500.

The table below shows the results of the analysis and the measurements for sheet materials manufactured in examples 1-6.

BasePaper Bristol®Paper Elementa® bulkPaper Maine Gloss®Examples
Example 1: layer And Bristol®Example 2: layer And the Elementa ® bulkExample 3: layer And on Maine Gloss®Example 4: the layer on Bristol®Example 5: the layer on Bristol®Example 6: layer D at Bristol®
Weight per square meter in grams (g/m2)270100250304130290396311294
Thickness (µm)250140220273173240310314334
Density (cm3/g)0,925931,40,880,91,330,830,781,011,14
Smoothness by Beck (seconds)602040077055035943695326036996
Brightness (at 75°, in %)XXX85,186,38785,986,685,4
The surface resistanceXXX9,72.10®XX2,47.10103,48.107X
Test parametricheskim dye (optical density depending on the time of contact)15 secondsXXXV 0,36V 0,33V 0,34With 0,95 V 0,37X
30 secondsXXXV 0,37V 0,30V 0,33From 1.22V 0,41X
60 secondsXXXV 0,37V 0,31V 0,34With the 1.06V 0,40X
120 secondsXXXV 0,38V 0,32V 0,351.04V 0,46X
(x: parameter was not measured)

The transfer layer to the printing (A-D) on the basis leads to the increase of mass per square meter in grams and thickness of the basics. The increase in the mass per square meter in grams is in the range of 30-40 g/m2for the layer A, 126 g/m2for the layer B, 41 g/m2for the layer and 2 g/m2for the layer D. Increase colmenarejo within 20-33 μm for the layer A, 60 μm for the layer B, 64 μm for the layer and 84 μm for the layer D. the Increase in the mass per square meter in grams and thickness of the Foundation takes place solely in connection with the addition of glue and moved to the base layer for printing.

The paper has a sufficiently large density of greater than or equal 1,10 cm3/, In the examples, only the paper Elementa® bulk had a higher density (1.4 cm3/g).

When porting layer for printing And on the basis of the density of the reduced basis. The Foundation initially has a higher density, as in the case of paper Elementa® bulk in example 2. The transfer layer And on this basis leads to some reduction of its density (about 5%). Density basis Elementa® bulk together with the layer And remains very large (1,33 cm3/g, i.e., higher values of 1.10 cm3/g).

The transfer layer to the printing on the basis leads to a decrease of its density, while the Transfer layer to the printing on the basis of little effect on its density. The transfer layer to the printing D on the basis increases its density, as the layer for printing in this case is a layer of ink for inkjet printer, which has a very high porosity and, consequently, low density.

Paper grades Bristol® and Elementa® bulk initially has a relatively low degree of smoothness, n is 100 C. Paper pre-coated Maine Gloss® due to the previously applied coatings based on calcium carbonate and the butadiene-styrene latex initially has a relatively high smoothness, about 400 C.

When the transfer layer to the printing on the substrate using the method described in this invention, it is possible to perform a base with a smooth or ULTRAGLIDE side, as explained earlier.

When the transfer layer to the printing And the paper support can significantly increase the degree of smoothness. It is noted that the layer for printing And gives the opportunity to give a paper having a high density, a very high degree of smoothness (5035 in example 2). The technique described in this invention allows to manufacture paper that has both a very high degree of density and smoothness.

It is also noted that the higher the initial degree of smoothness of the framework, the greater will be the degree of smoothness after application of the layer A. Layer And transferred to the paper Maine Gloss®, allows us to give this paper a very high degree of smoothness, to 9436 C.

The transfer layer D on the basis Bristol® allows to increase the degree of smoothness up to 1000 C.

Sheet materials manufactured in examples 1-6, have enhanced brightness above 80%. A method of manufacturing allows us to give the sheet material one is temporarily high degree of smoothness and brightness.

The presence of the conductive additive in the layer makes it possible to significantly reduce the surface resistance of the sheet material. Sheet material in example 5 has a surface resistance of 1000 lower than that of the material in examples 1 and 4. This Supplement helps to increase the conductivity of the sheet material and to release the sheet material with the properties of a conductor of electricity.

With regard to suitability for printing offset from sheet material in examples 1-5, the test parametricheskim dye shows that the paper has an optical density after impregnation of the dye within the acceptable range, even if its value does not increase over time, which indicates a limited absorption.

As far as the paper for printing using an inkjet printer, manufactured in example 6, the test print media Epson and Canon have shown satisfactory results, despite the weak application.

Example 7: Production of smooth or ultrapatch material containing varnish or resin for printing.

Manufactured sheet material, smooth or ULTRAGLIDE, according to the present invention containing layer for printing formed acrylic lacquer or resin for printing E, of the following composition. Sheet material suitable for Nan is placed print offset.

The resin composition for printing E
BinderAqueous dispersion of a copolymer of n-butyl acrylic-nitrile-styrene Acronal® S504 (BASF)300 g
DisperserSour sulfoxy-isooctyl ether, the sodium salt of Agnique® EHS E (Cognis)3 g
The rheology modifierAqueous dispersion of a copolymer of acrylic Sterocoll® FD (BASF)0.6 g
Fixing agentNonionic surfactants Surfynol® 420 (Safic-Alcan)0.2 g

Resin for printing E has nite weight concentration of 50%, a viscosity of 50 JV, measured by the Brookfield viscometer®.

Resin E is applied to the side of the plastic film of PET, which is pre-coated with anti-adhesion layer on the basis of stearate-chloride chromium. Resin E is applied on the film in an amount of 5 g/m2. Resin E is then dried in an oven at 70°C. Thus have a multilayer structure consisting of a plastic film of PET, anti-adhesion layer of the stearate-chloride chromium and iloveu resin.

Free fitting resin glued with Super glue-Lok® 364 production company National Starch. The adhesive is applied at the rate of 3 g/m2the resin. Taped side resin is applied on a substrate made of paper Bristol® 335 g/m2production company Arjowiggins, and then the entire complex is dried in an oven at 70°C.

Plastic film and anti-adhesion layer is then removed (in process stage c/) to a paper substrate remained only resin for printing E and the layer of glue.

The table below describes the measurement and analysis results for sheet material made in example 7.

BaseExample 7: Resin for printing on paper Bristol®
Weight per square meter in grams (g/m2)280
Thickness (µm)260
Density (cm3/g)0,93
The degree of smoothness by Beck (seconds)>10000
Brightness (at 75°, in %)99

The transfer resin for printing on the basis of little effect on the increase in mA the son of one square meter in grams, thickness and density of the basics. The transfer enables the manufacture of sheet material with a very high degree of smoothness (>10000 (C) and brightness (99%). The suitability of such sheet material for printing remains lower than that of the materials produced in examples 1-6, due to the lack of pigment in the layer for printing.

Example 8: Production of smooth or ultrapatch material for offset printing method, the HP Indigo or by using conductive dyes.

Each manufactured in this example, the sheet material contains two layers for printing: AA, AB, AC; the first layer (a, b, or C) is used lightly on the anti-adhesion layer of the layered structure and the second layer (A) is applied (lightly) on the first layer. The first layer that is closest to the plastic film is a layer that is applied directly to the dye in the process of printing. It determines the ability of printing. The second layer is a pre-applied layer, which provides good adhesion of the first layer with the base and forms a barrier for the glue (to prevent penetration of the adhesive in the layer for printing).

Plastic film is a PET film with thickness of 12 μm. Layers for printing when manufactured is allenii sheet material for printing offset consist of the first layer and the second layer A. Layers for printing using HP Indigo consist of the first layer and the second layer A. Layers for printing using conductive dyes (e-print) consist of the first layer and the second layer A. Multilayer structures are structures of type PET/anti-adhesion layer/layer As&And&or&A. the Layers a, b, C are superimposed in the amount of 6 g/m2.

The compositions of these layers are shown in the tables below.

The composition layer for printing And
PigmentsCalcium carbonate Carbital® 95 (Imerys)475 ml
Binder 1Aqueous dispersion of a copolymer of butadiene-styrene Styronal® D517 (BASF)190 ml
Binder 2Aqueous dispersion of a copolymer of n-butyl acrylate-acrylic-nitrile-styrene Acronal® S 305 (BASF)94 ml
DisperserSour sulfoxy-isooctyl ether, the sodium salt of Agnique® EHS E (Cognis)3 g
The rheology modifierThe water dispersion of copoly the EPA acrylic Sterocoll® FD (BASF) 0.6 g
Fixing agentNonionic surfactants Surfynol® 420 (Safic-Alcan)0.2 g

The composition layer for printing
PigmentsCalcium carbonate Carbital® 95 (Imerys)475 ml
Binder 1Aqueous dispersion of a copolymer of butadiene-styrene Styronal® D517 (BASF)95 ml
Binder 2Aqueous dispersion of a copolymer of n-butyl acrylate-acrylic-nitrile-styrene Acronal® S 305 (BASF)47 ml
DisperserSour sulfoxy-isooctyl ether, the sodium salt of Agnique® EHS E (Cognis)3 g
The rheology modifierAqueous dispersion of a copolymer of acrylic Sterocoll® FD (BASF)0.6 g
Fixing agentNonionic surfactants Surfynol® 420 (Safic-Alcan)0.2 g

The composition layer for printing
PigmentsCalcium carbonate Carbital® 95 (Imerys)475 ml
Binder 1Aqueous dispersion of a copolymer of butadiene-styrene Styronal® D517 (BASF)95 ml
Binder 2Aqueous dispersion of a copolymer of n-butyl acrylate-acrylic-nitrile-styrene Acronal® S 305 (BASF)47 ml
Activator clutchWater dispersion of acrylic acid and ethylene Diamond® 63001 (NALCO)280 ml
DisperserSour sulfoxy-isooctyl ether, the sodium salt of Agnique® EHS E (Cognis)3 g
The rheology modifierAqueous dispersion of a copolymer of acrylic Sterocoll® FD (BASF)0.6 g
Fixing agentNonionic surfactants Surfynol® 420 (Safic-Alcan)0.2 g

Each of the three multilayer structures and paper Opale® 200 g/m2production company Arjowiggins Schlei is Alice bicomponent polyurethane adhesive, which was applied in an amount of 10 g/m2.

The obtained sheet materials have a good ability to print according to the method, that is, offset printing, printing using the digital printer HP Indigo and conductive dyes (e-seal).

1. A method of manufacturing a sheet material for printing using offset printing, inkjet or laser printing device, gravure printing, flexo printing, dry toner, liquid toner Electrophotography and/or lithography, having at least one smooth side and containing a substrate, in particular a paper, at least one side of which is coated at least partially with a layer or layers superimposed on one another, according to which:
and/ cook or take a multilayer structure formed by or containing at least smooth plastic film, anti-adhesion layer and a layer for printing, and anti-adhesion layer fitted between the plastic film and a layer for printing;
b/ glue one side of the substrate and/or the side of the multilayer structure, located on the back side of the plastic film, and place the specified side of the substrate on the specified side of the multilayer structure so as to join a multi-layer structure and the substrate;
with/ delayt plastic film with a layer for printing, moreover, this layer for printing forms found on the smooth side of the sheet material.

2. The method according to p. 1, characterized in that the layer for printing is hard and/or dry condition at stage b/ and/or/.

3. The method according to p. 1, wherein the substrate is selected from paper, onion skin paper, cardboard and paper with pre-coated or coated paper.

4. The method according to p. 3, characterized in that the paper has a density equal to or higher 1,10 cm3/g, preferably equal to or greater than 1.2 cm3/g, more preferably equal to or greater than 1.3 cm3/year

5. The method according to p. 1, characterized in that before step b/ on the specified side of the substrate is applied pre-coating at least one smoothing layer containing one or more thermoplastic polymers, or a mixture of pigments and at least one binder.

6. The method according to p. 5, characterized in that before step b/ side of the substrate coated with a preliminary coating is passed through a calender to increase its smoothness.

7. The method according to p. 1, characterized in that the plastic film is selected from polyethylene terephthalate PET, polyethylene PE, polypropylene PP, polymers based on polylactones acid PLA, or any polymer based on cellulose.

8. The method according to the .1, wherein the anti-adhesion layer is made on the basis of silicone (silicone), siloxane (siloxanes), polysiloxane (polysiloxane) or their derivatives, complex (complexes) Werner, such as the stearate of chlorides of chromium, or waxes of polyethylene, polypropylene, polyurethane, polyamide, PTFE, or mixtures thereof.

9. The method according to p. 1, wherein the anti-adhesion layer is at least partially removed from the layer for printing when removing plastic film on stage with/.

10. The method according to p. 1, wherein the anti-adhesion layer is left on the layer for printing when removing plastic film on stage with/.

11. The method according to p. 1, characterized in that the layer for printing includes a mixture of pigments and at least one binder or resin for printing, for example, based on acrylic polymers, polyurethane, polymethyl methacrylate, vinyl acetate, butadiene styrene, polyamide, nitrocellulose or all other types of cellulose, polyvinyl alcohol, starch or mixtures thereof.

12. The method according to p. 1, wherein the multilayer structure includes at least one additional layer applied to the layer for printing the side opposite to the plastic film, and the free side of this additional the additional layer or an additional layer, most remote from plastic film, is designed for sizing and blending on the specified side of the substrate during the execution phase b/.

13. The method according to p. 1, wherein an additional step of printing on the sheet material by the dye having electrical and/or optical properties.

14. The method according to p. 1, characterized in that the smooth side of the sheet of material has a degree of smoothness on the Beck exceeding approximately 900 to or greater than about 1000, preferably greater than 2000 and preferably above 5000 S.

15. The method according to p. 1, characterized in that the smooth side of the sheet of material has a brightness greater than 70%, and preferably greater than 80%.

16. The method according to p. 1, characterized in that the layer for printing has a thickness of less than or equal to 30 μm, preferably less than or equal to 15 microns, and preferably less than or equal to 10 μm, and/or weight per square meter in grams less than or equal to 30 g/m2, preferably less than or equal to 15 g/m2and preferably less than or equal to 10 g/m2.

17. The method according to p. 1, characterized in that before step a/ perform an additional step involving the manufacture, for example by engraving, images of depressions and/or raised elements on the side of the plastic film, intended for reception against the adhesive layer and the layer for printing;
moreover, the layer for printing is intended to take the form of these images to contain the imprint of that side of the plastic film.

18. The method according to p. 1, characterized in that the adhesive is applied at least on one side of the substrate in step b/, and the thickness of the applied adhesive is at least equal to half the average value of the roughness of the side of the substrate, and preferably equal to the average value of roughness.

19. Sheet material for printing using offset printing, inkjet or laser printing device, gravure printing, flexo printing, dry toner, liquid toner Electrophotography and/or lithography, having at least one smooth side and containing a substrate, in particular a paper, at least one side of which is coated at least partially with a layer or layers superimposed on one another, of which the layer for printing forms found on the smooth side, the degree of smoothness which Beck in excess of about 900 to, or greater than 1000, or greater than 2000, or exceeds 5000 S.

20. The sheet material under item 19, characterized in that the smooth side has a brightness greater than 70%, and preferably greater than 80%.

21. The sheet material under item 19, characterized in that the layer for printing has a thickness of less than or equal to 30 is km, preferably less than or equal to 15 microns, and preferably less than or equal to 10 μm, and/or weight per square meter in grams less than or equal to 30 g/m2preferred less than or equal to 15 g/m2and preferably less than or equal to 10 g/m2.

22. The use of sheet material p. 19 for the manufacture of electronic and/or optical component; and this sheet material printed using offset printing, inkjet or laser printing device, gravure printing, flexo printing, dry toner, liquid toner Electrophotography and/or lithography through a dye having optical and/or electrical properties.

23. The use of sheet material p. 19 for printing photographic images with the help of offset printing, inkjet or laser printing device, gravure printing, flexo printing, dry toner, liquid toner Electrophotography and/or lithography.

24. The use of sheet material p. 19 to complete the package.

25. The use of sheet material p. 19 for applying stereotypes.



 

Same patents:

FIELD: tobacco industry.

SUBSTANCE: invention can be used in the pulp and paper and the tobacco industry. The machine for manufacturing weakly smouldering web comprises a motion path 2, along which the paper web W moves, an applicator 3 for applying a combustion inhibitor 7 to the web, and a drying device 4 for drying the web with application of the combustion inhibitor on it. The machine additionally comprises a detector 9 measuring the parameter specifying the width W of the web, passed through the drying device 4. A controller 10 adjusts the drying parameter in the drying device 4, based on the measurement results obtained by the detector 9, for the width of the web is in the acceptable range.

EFFECT: invention enables to control shrinkage to provide stable quality of the wrapping paper for cigarettes.

11 cl, 3 dwg

FIELD: chemistry.

SUBSTANCE: invention can be used in production of tissue paper. Surface-treated natural calcium carbonate is used as filler in tissue paper products, where said calcium carbonate is a product of reaction of natural calcium carbonate with an acid and carbon dioxide. The carbon dioxide is formed in situ by treatment with the acid and/or is fed from an external source. The surface-treated natural calcium carbonate is obtained as an aqueous suspension having pH higher than 6.0, measured at 20°C.

EFFECT: invention improves softness of tissue paper products such as facial tissue, toilet paper, ornamental paper, towels, napkins or tissue paper cloths.

47 cl, 1 dwg, 5 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: composition contains carrier starch and secondary starch. The carrier starch contains (in terms of dry mass), less than 50% pre- gelatinised starch and has higher sensitivity to alkali than the secondary starch. The secondary starch is selected from a group comprising maize starch, potato starch, wheat starch and a mixture of two or more of the said types of starch. The carrier starch is selected from a group comprising wheat starch, potato starch, cassava starch, barley starch and a mixture of two or more of the said types of starch. The composition contains (in terms of dry mass) 0.5-60% carrier starch, 40-99.5% secondary starch and 1-8% alkali. The composition also contains (in terms of dry mass) 0.1-3.5% boron compound. An adhesive is obtained by adding the composition to water and stirring while adding a sufficient amount of alkali. The adhesive is used to make corrugated cardboard and multilayer materials. The advantage of the adhesive composition lies in that it can be easily prepared with low expenses on time and equipment.

EFFECT: use of the adhesive improves quality of cardboard, reduces adhesive consumption and increases rate of production.

25 cl, 6 tbl, 1 ex

Banknote // 2374083

FIELD: money.

SUBSTANCE: invention is related to banknote with reinforcing strengthening and counterfeit protection facilities. Reinforcing strengthening is arranged with metal tissue with Russian Federation coat of arms contour woven on it. As counterfeit protection facility, signal chips are used, which under action of light change colour with generation of light signal by chips. At the same time metal tissue and signal chips are arranged with thickness of 8-10 mcm.

EFFECT: invention has extended service life and has high extent of counterfeit protection.

1 dwg

The invention relates to the pulp and paper industry and relates to a fibrous sheet of filter material for deep cleaning fluids from emulsified in her oil and gaseous media and obtained by the method of dry forming

The invention relates to the pulp and paper industry, in particular to a method of manufacturing bases waxed paper intended for outdoor swivels confectionery machines

The invention relates to the pulp and paper industry, in particular to methods of producing paper for the inner layers of decorative paper laminates containing phenol-formaldehyde resin
Filter material // 2072194

FIELD: textiles, paper.

SUBSTANCE: invention can be used in the manufacture of paper, varnishes and paints. The method of preparing the aqueous suspension of particulate calcium carbonate comprises providing an aqueous suspension of particulate calcium carbonate comprising at least one dispersing agent, and providing at least one alkali metal carbonate and/or alkali metal acid carbonate, where the alkali metal ion is selected from potassium and/or sodium. The solid matter content in the said suspension is 65-80 wt % relative to the total weight of the aqueous suspension. The said aqueous suspension of particulate calcium carbonate is diluted with water. Before and/or during and/or after dilution with water, the said aqueous suspension of particulate calcium carbonate is brought into contact with the said at least one alkali metal carbonate and/or alkali metal acid carbonate. At that the suspension of dispersed calcium carbonate after the stage of contacting has the pH value from 7.5 to 12.

EFFECT: invention enables to increase the light scattering coefficient S and opacity of the coatings obtained from the suspension of calcium carbonate.

16 cl, 2 ex

FIELD: textiles, paper.

SUBSTANCE: cardboard comprises solid cardboard substrate of bleached sulphate pulp (BSP) and a coating applied to the cardboard substrate to form a coated structure. The said coated structure has a surface density, thickness of the sheet and the Parker surface smoothness. The Parker surface smoothness is at most about 3 microns, and the surface density is at most about Y2 or Y3 or Y4 pound/3000 foot2, where Y2, Y3 and Y4 are functions of the said thickness (X) of the sheet in points which are calculated using the equation: Y2=3.71+13.14X-0.1602X2 or Y3=3.63+12.85X-0.1566X2, or Y4=3.50+12.41X-0.1513X2.

EFFECT: invention provides a coated cardboard with increased smoothness with the required parameters of thickness and the surface density to ensure high-quality printing.

13 cl, 10 dwg, 1 tbl, 6 ex

Pigment composition // 2461595

FIELD: chemistry.

SUBSTANCE: water-based pigment composition contains polyalkylene glycol, having average molecular weight Mw from approximately 5000 to approximately 75000, and inorganic pigment particles containing colloidal particles based on silicon oxide or silicate or aggregates thereof. The amount of polyalkylene glycol ranges from 50 to 100 wt % with respect to the total amount of organic material in the composition, and the weight ratio of said colloidal particles to the organic material ranges from 1:3 to 30:1.

EFFECT: invention also relates to a method of producing said composition, use thereof to coat paper or cardboard, a method of obtaining coated paper or cardboard.

25 cl, 2 tbl, 4 ex

FIELD: paper industry.

SUBSTANCE: paper product comprises a substrate selected from paper or cardboard, and a coating on the substrate with voids in it. The coating on the substrate comprises a water soluble polymer. The water-soluble polymer is selected from a group consisting of starch, waxy corn starch, protein, polyvinyl alcohol, casein, gelatin, soybean protein, and alginates. The coating additionally comprises a crosslinking agent. The paper product is substantially free of an elastomeric material. A method of processing a substrate for the paper product comprises coating an aqueous solution of the polymer on the film substrate, fixation of an aqueous solution of the polymer by contacting of the aqueous solution of the polymer with a heated surface up to formation of voids in the film. The phase of fixation comprises at least a partial drying of aqueous polymer solution.

EFFECT: obtained paper product is characterised with improved smoothness with no increase in density and has excellent printability.

27 cl, 3 ex, 1 tbl, 17 dwg

FIELD: textile, paper.

SUBSTANCE: paper base is designed to form a decorative material of a coating. It represents a non-processed paper containing a white pigment and/or fillers and is coated with a covering solution, containing at least one water-soluble modified starch with special distribution of molecules according to molecular weight. Also a decorative paper or decorative material is proposed to form coatings with application of the above-specified paper-base.

EFFECT: improved quality of a finished product due to increased inner strength of fixation with high non-transparency and other mechanical properties, improved stability of paper size stability and increased average size of its pores.

7 cl, 2 tbl, 6 ex

FIELD: construction.

SUBSTANCE: wallpapers have a base and a face and a reverse sides. A coating that contains an antibacterial agent is applied onto the face side of the base. The coating antibacterial agent is represented by silver nanoparticles. The coating is produced by mixing of a varnish and a carbon porous carrier with silver nanoparticles in specified amount. Silver nanoparticles size is 2-50 nm. The carbon porous carrier has specific density of 0.03-0.1 g/cm3, specific surface of 50-200 m2/g and pore size of 5-50 nm. The varnish is a water-based acrylic varnish or an alkyd varnish. The wallpaper base is made of paper or cloth. The face surface of wallpapers is made of paper, cloth, fabric fibres or polyvinyl chloride. The carbon porous carrier with silver nanoparticles is in powder form. Glue is applied onto the reserves side of wallpapers.

EFFECT: higher quality of wallpapers and simplified technology of their manufacturing.

14 cl

FIELD: textile, paper.

SUBSTANCE: method includes formation of composition, containing water, raw starch and powder optical refining agent. Boiling of composition. Application of finished composition, at least on one surface of paper or cardboard base in coating press. Then base is dried. In another version of method composition is boiled at the temperature up to 299°F inclusive.

EFFECT: improved brightness of paper and cardboard.

7 cl, 4 dwg, 8 tbl, 1 ex

FIELD: fabrics, paper.

SUBSTANCE: invention is related to glossy chalk overlay universal paper for printing, which may be used in wide range of office equipment for printing, including jet and electrophotographic printing, to method of chalk overlay paper making. Chalk overlay paper contains paper web and pigment composition applied onto at least one surface of web. Specified composition of pigment coat comprises the first pigment with specific surface BET in the range from approximately 50 to 750 m2/g; the second pigment with specific surface BET in the range of approximately from 5 to 49 m2/g; and polymer binder. Besides specified chalk overlay paper has glossiness of coat equal to or more than approximately 30% at the angle of 75° and length of absorption Bristow less than approximately 180 mm.

EFFECT: paper has superb properties of ink absorption, toner fixation and provides for obtaining the imprint of high quality.

10 cl, 3 dwg, 15 tbl, 8 ex

FIELD: textile fabrics, paper.

SUBSTANCE: method is related to production of coated paper or cardboard. Method includes application of pigment composition as coating on at least one side of paper or cardboard web. Specified pigment composition is water dispersion, which includes optionally aggregated colloidal particles of silicon dioxide or aluminium silicate as pigment particles, which are prepared from alkali metal silicate by ion exchange or pH reduction and having surface area of approximately from 30 m2/g to approximately 450 m2/g. Coating contains also at least one cationic component selected from group that consists of water-soluble aluminium salts and cationic polymers with molecular weight from approximately 2,000 to approximately 1,000,000 and charge density from approximately 0.2 mEq/g to approximately 12 mEq/g, in which at least approximately 0.4 g of pigment particles from pigment composition is applied on m2 of coated side of paper or cardboard web. Invention is also related to paper or cardboard produced by this method. It is also related to composition of above mentioned pigment in the form of water dispersion, which includes less than approximately 3 wt % of organic binders and to method of above mentioned pigment composition production, in which mixing is done to produce water dispersion in order to avoid gel formation and deposition.

EFFECT: improvement of printing and strength properties of coating, and also lower scuffing of paper.

26 cl, 5 tbl, 4 ex

FIELD: textiles, paper.

SUBSTANCE: wear proof particles are treated with adhesion promoter based on silane or sylon and then deposited on paper, impregnated with resin, thereby obtaining coating. Fibre is electrically charged and put onto the coating. Drying is then carried out. The device for implementing the given method has a equipment for depositing wear proof particles on paper, equipment for charging fibre and putting the charged fibre onto the paper. The latter consists of a roller with depressions, made with provision for rotating, and a brush mounted near the roller for cleaning the depressions. The device also has apparatus for electrically charging the roller and/or the brush and the roller, which is made with provision for rotation and passing paper sheets under the roller with depressions. Paper, made using this technique, has a wear proof coating and electrically charged fibres on the wear proof coating. The charged fibres used can be made from polyester and/or cotton, and/or cotton linter.

EFFECT: obtaining wear proof paper with improved properties.

14 cl, 3 dwg

Information carrier // 2533821

FIELD: chemistry.

SUBSTANCE: invention relates to information carriers. Claimed is an information carrier, successively including a substrate, selected from a polymer-covered paper, synthetic paper and plastic films, the first ink-receiving layer and the second ink-receiving layer, with the ink-receiving layer containing at least one substance, selected from aluminium oxide, aluminium oxide hydrate and highly dispersive silicon oxide, polyvinyl alcohol and boric acid, with a weight ratio of the boric acid and polyvinyl alcohol content in the first ink-receiving layer constituting 2.0 wt % or more and 7.9 wt % or less, with the second ink-receiving layer containing highly-dispersive silicon dioxide, polyvinyl alcohol and boric acid, and a weight ratio of the boric acid and polyvinyl alcohol content in the second ink-receiving layer constitutes 10.0 wt % or more and 30.0 wt % or less.

EFFECT: claimed carrier makes it possible to prevent cracking after the application of ink-receiving layers, possesses the high ink-absorbing ability and a resistance to cracking in bending.

6 cl, 4 tbl, 68 ex

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