Multilayer flexible transfer tape

 

(57) Abstract:

Multilayer flexible transfer tape to improve its quality contains conversion layer and/or adhesive layer comprising fine hollow particles and a water-soluble solid alcohol. 7 C.p. f-crystals.

The invention relates to a multilayer flexible conversion tape with a substrate and an adhesive layer, characterized in that between the substrate and the adhesive layer is containing a binder conversion layer, adherent to the adhesive layer is stronger than the substrate, the method of its manufacture, and application of this conversion tape in the form of a roll in the manual device.

Similar such conversion tape described in EP 0318804. Its peculiarity lies in the fact that the binder containing conversion layer as a means to facilitate separation contains soluble derivative of cellulose in an amount of from 0.5 to 5% by weight. Containing binder conversion layer such tape can be transfered to the point or plane (including a large area) that require coverage, without corrections and ragged edges on the bill of the layer. This tape can be used in the form of a roll in a manual device for simple, rapid and uniform deposition on the substrate, with almost eliminated sacto if conversion layer contains pigments, then if the overlay using a handheld device on the substrate can meet the cracks that subsequent application of ink or ink on the translated layer appears to be in clear lines. In the event of prolonged storage of such conversion tape its adhesive layer to a greater or lesser extent dries, resulting in deterioration of its adhesive properties. This leads to his lack of initial stickiness in the new application of the transferable tape after a break.

US PS 3413168 described adhesive coating tape, the adhesive layer which contains protruding from the surface of microscopic hollow balls with a diameter of 40 to 100 μm. These microscopic balls provide precise positioning of the tape and burst when it is down. With this tape is glued to the surface. JP 58142944 And describes a coating material containing the number of 20 - 55% of microscopic hollow shell filled with solvents, solutions of resins or liquid resins.

Taking into account the above prior art, the basis of the invention is to improve known flexible transfer tape, which can eliminate the above problems, and improve consumer swoimi binder conversion layer and/or the adhesive layer contains fine hollow particles and a water-soluble solid alcohol.

In other words, this means that the invention can be carried out either in the variant involving the use of fine hollow particles and a water-soluble solid alcohol-containing binder bill layer, or in a variant, involving the use of fine hollow particles and a water-soluble solid alcohol in the adhesive layer. However, both of these variants of the invention can be combined, giving the invention, certain advantages are evident from the following description.

For efficient manufacturing of the proposed invention transferable tape is suitable, in particular, the way in which pigmentaria synthetic dispersion according to standard technology applied on the flexible substrate, the dispersant is evaporated, and then on top of the thus obtained conversion layer by the conventional technology is applied containing adhesive in water dispersion, after which the water is evaporated, while pigmentaria synthetic dispersion contains a water-soluble solid alcohol and fine hollow particles and/or containing adhesive aqueous dispersion contains a water-soluble solid alcohol and fine hollow particles.

According to the present invention creractocky hard alcohol. Under the water-soluble solid alcohol is meant a solid alcohol, soluble in water at room temperature. Alcohols of this kind are, in particular, chetyrehtomnik alcohols, such as aritra, pentabasic alcohols, such as Arabic, adonit and xylitol, setiathome alcohols, such as sorbitol, mannitol and dulcet, and if this does not preclude the implementation of the invention, the alcohols with one or more additional functional groups, such as glucose and fructose, and disaccharides, such as sucrose. Found that sorbitol, due to their good hygroscopic qualities, is most appropriate. The preferred mass content of water-soluble solid alcohol-containing binder transfer layer is in the range of values 3 - 25%, in particular 5 to 20%. The preferred mass content of water-soluble solid alcohol in the adhesive layer is in the range of values 1 to 40%, in particular 5 to 30%.

At least one of the two layers in the above-mentioned two variants proposed in the invention transferable tape contains a small hollow, preferably elastic particles in contact with considered water-soluble solid alcohol. what th solid alcohol.

Fine hollow particles preferably have a circular shape. The diameter of the hollow particles in the case of their use in the adhesive layer is preferably about 0.25 to 5 μm, in particular from 0.3 to 2 μm. In the case of hollow particles containing a binder bill layer, the diameter is preferably about 0.3 to 10 μm, in particular from 0.3 to 5 μm. In the General case, it is preferable that the volume of the internal cavity of the particles ranged from 20 to 55%, in particular from 25 to 40% of the total particles. To achieve a useful result, the essence of which is illustrated below, using the proposed conversion tape special preference is given to this performance fine hollow particles, when they are elastic slurry of small particles with porous walls.

Typically, a small hollow particles consist of an opaque polymer milky color. However, such an opaque polymer can be podsvetitj, and this subculture should be carried out in the manufacturing process using such a dye, which is consistent with the transferable dye layer.

Particularly preferable that the ratio of the wall thickness of the hollow particles to its diameter was less than 0.25, in particular the transparent polymer milky white in color. With the aim of increasing opacity those balloons filled with air to dry the paint. Rational use of these hollow balls in the intermediate layers of heat-sensitive paper is described in EP 0341715 B1. In this case, the use of hollow spheres improves insulation and elasticity. With the present invention, this information is not technologically interconnected, however, these sources of hollow balls can be freely used for the implementation of the present invention, bringing with positive effect. In particular, the walls of these balls consist of styrene resins, acrylic resins, or resins of copolymers of acrylic and styrene. Their production is described, for example, in US-A-4427836 and EP 0022633 B1 (in both cases, the patent owner is a company Rohm and Haas, USA). Such bulbs are made by a special method of polymerization in emulsion state, which in this description in detail is not covered because it does not relate to the essence of the invention. Obtained in this known method the hollow particles or beads contain water, which at elevated temperatures is able to flow and evaporate through made in the wall of the hollow particle micropores. For application of particle diameters of about 0.4 μm and a wall thickness of about 0.06 micron, Ropaque HP-91 with a particle diameter of about 1 μm and a wall thickness of about 0.1 μm (both products supplied by Rohm and Haas), and also under the brand Voncoat, in particular Voncoat PP-1100 with a particle diameter of approximately 0.5 - 0.55 m and a wall thickness of about 0,11 - 0,12 μm (a product supplied by Dainippon Inc., With, Japan).

The substrate is proposed in the invention the conversion of the tape is preferably made of plastic films similar to traditionally used for manufacturing the substrate of the tape printing machines, for example of polyethylene terephthalate, polypropylene, polyethylene, polyvinyl chloride or polycarbonate. Also demonstrated its suitability as a substrate paper with a silicone coating. Silicone coating reduces the adhesion between binder containing a transferable layer and the substrate. Silicone coating can be replaced by another with a release agent, such as polytetrafluoroethylene.

The substrate preferably has a thickness of about 10 to 60 μm, in particular from 15 to 55 μm, the conversion layer has a thickness of from about 5 to 40 μm, in particular from 15 to 25 μm, and the adhesive layer thickness of about 1 to 8 μm, in particular from 2 to 5 μm. To optimize the properties of the proposed invention the conversion flax is up to 1:12, in particular from 1:8 to 1:10.

The adhesive layer may be made of commercially available adhesives. These are elastic adhesive mass that retains high adhesiveness for a long time, which is already at a low pressure and room temperature instantly stick to various surfaces. Preferably this adhesive is applied in the form of an aqueous dispersion conversion layer already present on the substrate, since this is already formed containing a binder conversion layer is no longer dissolves. Among the adhesives of this kind are the most effective, in particular, substances on the basis of acrylates. As starting materials can be considered viscose solutions or dispersions based rubber, polyacrylates, polyvinyl simple esters, and polyvinyltoluene. Preference is given to commercially produced materials based on polyacrylates. Such suitable commercial products are Ucecryl 913 and Ucecryl PC 80 (supplied by the company UCB, Dogenbos, Belgium), and synthetic dispersion VP 859/6 (supplied by the company Freihoff). Blend the adhesive layer, which is initially in an aqueous medium, preferably stergiou layer of dispersion adhesive is applied to the conversion layer preferably in an amount of about 1 to 5 g/m2and most preferably in an amount of about 2 to 4 g/m2.

For education containing a binder transferable layer is preferably used thermoplastic or thermoelasticity polymers in aqueous solution or water dispersion. In the framework of implementation of the invention for effective solving of tasks using the following ingredients:

polyurethane with a molecular weight of from 15,000 to 50,000, for example Permutan U 4924 company Stahl-Chemie or Desmolac 2100 Bayer AG,

linear saturated polyesters with a molecular weight of from 20,000 to 30,000, for example, Vitel PE 307 company Goodyear Tire + Rubber Polyflex 46962 firm Morton,

styrene-isoprene-styrene copolymers, for example Clariflex TR 1107 firm Shell-Chemie,

the acrylates and methacrylates, such as Plexigum 7 H firm Roehm GmbH

polyamides, modified diphenyl acid, such as Scope 30 firm Rhone-Poulenc or Emerez 1533 firm Emery Chemicals,

dispersion polymers based WikiProject, for example Propiofan 6D BASF,

water-soluble polymethacrylate containing carboxymethylamino group, for example Ronagit SD15 company Roehm GmbH.

This list is not exhaustive and in no way limits the choice of material. Moreover, for the specialist should bitowego does not apply to essential features of the invention.

For a more complete optimization of the invention when choosing a binder, forming the subsequent conversion layer, you should consider the type used together with him plasticizer. When applying the transferable layer, the plasticizer should not penetrate through the adhesive layer, usually made thin, and to get to the site where you want to make a patch or coating, to make contact with this site or its dye and thereby to exert an undesirable influence on the color conversion layer. To this end suitable common plasticizers as silicone, rezinovye and mineral oil. Preferred in other areas of technology plasticizers, such as esters of phthalic acid or oleic alcohol, in this case can not be applied equally successfully. To compensate for the above-mentioned negative effects of plasticizers, manifested in extreme cases, containing a binder conversion layer, you can enter the so-called lesoobrazuyushchei supplements that block a possible move dyes or make them insoluble, resulting in these dyes can migrate in the deposited bill layer and change its color. K is obrazuyuschie supplements contained in the ink or ink. Their mass content in the binder containing the bill of the layer should be approximately in the range from 0.5 to 5%, in particular from 1.5 to 3.5%, and most preferred is the range from 2 to 2.5%. Practice has shown that the use of the water-containing porous hollow particles can significantly reduce the levels of plasticizers, and in some cases even completely abandon their use.

In the production process proposed in the invention transferable tape selected specific binder for formation of a transferable layer is preferably dissolved or dispersed in water. If necessary, enter the additives discussed below. The solvent or dispersant is selected depending on the type of binder, and the material from which the hollow particles, in particular of small aqueous elastic hollow particles. With proper choice of solvent not capable of dissolving the walls of hollow particles or to cause substantial diffusion penetration of water contained inside the hollow particles, through their walls to the outside. Therefore, the preferred dispersant or solvent is water. In principle, all who are in particular, organic solvents from low - to srednetepa included in the group of alcohols, such as ethanol, isopropanol and butanol, ketones such as acetone and methyl ethyl ketone, esters, such as methyl and ethyl acetate, aromatic hydrocarbons such as toluene, aliphatic hydrocarbons, such as gasoline with a boiling point in the range 70 - 140oC, in pure form or in mixture with other components, especially water, in pure form or in mixture with a low-boiling water-soluble organic solvents.

The concentration of binder in solution or dispersion is not important from the point of view of the invention. As the estimated values of the mass concentration of the binder can specify the range of 3 to 15%, with the preferred values are in the range of 6 to 12%. For formation of a transferable layer of the solution or dispersion applied to the substrate preferably in an amount of about 15 to 25 g/m2most preferred is an amount between about 18 and 22 g/m2.

Containing binder conversion layer may contain a dye. The term "dye" should be understood in its broadest sense. It should be seen as an umbrella designation use under this coloring substances should be aware of these dyes, soluble in water, organic solvents or binders and are an alternative to insoluble pigments. The colours can be seen, both directly and through fluorescence in artificial light. The latter is important, for example, for fluorescent fluorescent paints. In the case when the proposed invention the transfer tape is used for the correction of handwritten or printed characters, graphics, etc. containing a binder conversion layer contains, in particular, white pigments such as titanium oxide, precipitated chalk, tonage or colloidal silicic acid. When conversion layer must be colored, as the dyes used inorganic pigments such as Hansa yellow (yellow azopigments), ochre, red iron oxide, black iron oxide, cobalt blue, ultramarine, Prussian blue, and organic pigments, such as alkali blue, phthalocyanine, azo dyes, antrahinonovye and metal complex pigments, and various types of carbon black. Of fluorescent dyes can, for example, as follows: Blaze Orange T 15 firms Dayglo, Maxilonbrillantflavin 10 GFF company Ciba Geigy, Pyranin Bayer AG and Basonyl-Rot Tosti containing transferable binder layer, it is possible to carry out the regulation of the content of pigments. The optimum content of pigments depends on many factors, namely the type of the selected binder, pigment, introduced additives. Limit value or range of values of the content of pigments it is impossible to specify. Approximately the ratio of the weight of the binder by weight of pigments is possible to estimate a range of values from 1:1 to 1:12, in particular from about 1:3 to 1:8 and in the particularly preferred case is from 1:4 to 1:7.

Useful component containing a binder transferable conversion layer of the tape is "a means to facilitate separation". When applying the transferable layer on any substrate under conditions of tension, this tool provides a clean separation. As a means to facilitate separation are soluble derivatives of cellulose. Particularly preferred cellulose derivatives are soluble in organic solvents and/or water ethers of cellulose, such as methyl-, ethyl-, hydroxyethyl-, acylhydrazides and carboxymethyl cellulose, esters of cellulose, such as acetobutyrate and cellulose propionate. In addition, numerous other suitable cellulose derivatives, providing the desired effect. Obviously important the silt and so on, causes the formed derivative can be dissolved in a particular solvent.

Mass maintenance tools facilitate separation introduced in the conversion layer is about 0.5 - 5%, in particular from about 1.5 to 3.5%. The range of values of 2 to 2.5% is especially preferred. Achieving optimum properties of the transferable layer is also possible by adjusting the ratio of the amounts of funds facilitate separation and binding. Approximately the ratio of the number means to facilitate separation to the amount of binding can be assessed by the range of values is from 1:2 to 1:20, with a preferred spacing of about 1:4 to 1:10.

For a process control application layer, and the properties imposed on the substrate transferable layer in this layer, you can enter additional additives. Among such additives include: a means to improve opacity, in particular aluminum silicate, highlighter tool, such as carbon black, or the already mentioned lesoobrazuyushchei tool, which, in particular, for the basic dyes are derivatives of Gallic acid, e.g Printan company Ciba Geigy.

The above materials of the individual layers of the proposed Perevoznaya (defined through the work of adhesion by the equation Dupre (see K. L. Wolf "Physik und Chemie der Grenzflaechen", Springer Verlag 1957, page 164) between the adhesive layer and a transfer layer must be greater than the adhesion forces between the substrate and a transfer layer. If in case this requirement cannot be met, then to run to the substrate should be coated with a release layer of a suitable material. In such cases, usually put forward another requirement that formed on substrate conversion layer should not stick to the other in contact with the materials. When these requirements can be obtained from the following ratio of the adhesion forces for a successful application of the proposed invention the conversion tapes for expressions which used the symbol S indicates the force of adhesion between different materials, namely: S1- between the paper and the adhesive layer, S2between the transferable layer and the adhesive layer, S3between the transferable layer and the substrate, S4between the transferable layer and paper and S5between the adhesive layer and the substrate. Thus it is necessary to observe the following relations: S1more S3, S2more S3, S5much less S2and S5less S3. Besides, free is totally non-sticky on the front side, i.e., S4should be zero or strive for it. Thus, the printing conversion layer should not stick to the paper or to the hand if you touch it.

To achieve the desired results determine the preferred quantitative boundary conditions for the hollow particles in both layers. While the preferred weight percent of hollow particles in the binder containing the bill of the layer is about 1 to 25%, particularly from 5 to 20%. These interest data do not take into account the possible water content.

The principle of the present invention having the above characteristics, providing a positive effect, explained below taking into account technological features.

If the adhesive layer is introduced above the hollow particles, in particular aqueous hollow balls with porous walls, this leads to the fact that when a new use of the transferable tape after a break with the introduction of solid water-soluble alcohol increases the initial adhesiveness of the adhesive layer, which due to its "dry". This is due to the fact that when compressed, hollow balls through the microporous wall comes out some m the adhesive qualities. To achieve this the preferred method of making the proposed conversion tape provides for the manufacture of hollow particles in the form of aqueous elastic hollow particles with porous walls, and evaporation of the dispersant in the case of synthetic dispersions or water - if water dispersion, in a gentle manner so that almost keep constant the amount of water inside the hollow particles. It should not seek to fill the hollow particles of water, and to ensure that after completion of the production process in hollow particles remained minimally sufficient amount of water. The presence of hard alcohol to a certain extent, inhibits the proliferation of going through the microporous wall of the water as hygroscopic alcohol absorbs water. This "memory of water" within the adhesive layer is particularly effective in the case when the proposed invention the adhesive tape is applied in the form of a roll in the manual gluing device. This version of the application considered in more detail below.

When using the proposed invention transferable tape in the above-mentioned device, the interaction of solid alcohol and hollow particles ohms when you tape the water is squeezed out through the microporous walls of the hollow particles, the resulting solid alcohol at least softens or dissolves. Thus solid alcohol provides temporary softening effect on the binder containing conversion layer, so that the last in the overlay process on the substrate becomes more elastic, which prevents the development of microcracks. Despite the hygroscopic solid alcohol, removing the pressure pressing the tape a certain amount extruded from hollow particles of the water evaporates, resulting in temporarily softened alcohol again becomes solid.

Application in the bill of the layer of hollow particles, in particular having a porous wall, can be explained and other advantages of the invention. Thus, it was found that with increase in the content of hollow particles, likely due to hydrophobic properties of their walls, there is less chance of the "manifestations" of printed or handwritten characters, private transfer layer, on the reverse side of the sheet. This desirable effect is achieved by the above optimal value of the interest of the mass content of the hollow particles in the bill layer. In addition, the increase in the content of hollow particles, affecting coverts spaceborne titanium dioxide. Hollow particles having a very small size and only correct form, prevent the adhesion of pigment particles, in particular particles of titanium dioxide, which excludes the formation in the bill of layer inhomogeneities, which when applied conversion tapes are often a cause of occurrence of microcracks. Thus the surface layer gets improved elasticity, which prevents the appearance of microcracks.

Proposed invention lookup tape is best to use special devices that are capable of unwinding conversion layer having an adhesive coating, thus retracting the substrate. In this case, the treatment proposed in the invention transferable tape becomes particularly easy. The functions of such devices can perform a mass-produced handheld devices. One such device, the most appropriate in this case, is the so-called handheld device with coil placement of the tape. This apparatus has a body that is comfortable to hold in hand. Inside are unwinding the coil with a coil conversion belt unwinding passes through protruding from the casing head, and then sent back into the body, twisting Ecevit fast conversion tape from one spool to another with a constant and sufficient tension. For the application of the transferable tape, the user takes in hand the body of the device and presses the end face of the head through which the transfer tape, external (detachable) a layer of tape to the substrate on which the layer you want to translate (for example, on a printed sheet of paper for remediation). Pressing the crown, the user moves the device relative to the substrate, thus bringing the it to a substrate, for example, surface layer or a fluorescent layer, the flexible substrate is rewound from the unwinding reel for winding the coil.

Without further explanation it is obvious that the above manual of the device required to comply with the previously mentioned relation of forces between the layers, i.e., the adhesive force of the adhesive layer from the back side of the substrate must be less than the force of adhesion between the binder containing transfer layer and the adhesive layer, and is less than the force of adhesion between the binder containing a transferable layer and the substrate.

Proposed invention the transfer tape is especially suitable as a correction tools in office, school and home and can be used for masking gluing up wrong handwritten or printed characters, markoglou tape may be of a contrasting color marking, labels and/or marks. In this case, the composition of the transferable tape includes a conversion layer containing a color pigment. Another usage is to highlight pieces of text, characters or graphic images. In this case, the conversion layer is preferably transparent and colored fluorescent dye. A particular advantage conversion tape in all of these options for its use is "dry" nature of the overlay target layer, i.e., no spreading of the liquid coating and evaporation of questionable solvents, and the translated layer immediately can make labels. Thus, having proposed invention lookup tape, you can easily quickly and evenly on the substrate layers, such as covering layers containing the dyes. If conversion layer proposed in the invention transferable tape is transparent, i.e., does not contain, for example, no filling pigments, it can only be used for coating without lights, as well as for isolation of handwritten and printed characters, sensitive to the effects of air and other external factors.

The proposed transfer tape has significantly improved consumer is olie particles, when you apply it at least slightly moistened, which increases its viscosity. Due to the fact that the hollow particles is introduced into the conversion layer with solid alcohol, decreases their cohesion, which increases the purity of the separation of transferable layer. This is due to the temporary softening of hard alcohol. As was shown above, the increase in the number of conventional plasticizer has a negative effect, as in this case, the conversion layer would remain soft for a long time. This would, among other consequences, to undesirable manifestation of the private element of the text or even the appearance of traces of transferable layer on the reverse side of the sheet. When applying ink inscriptions on top of such transferable ink layer would spread. In addition, in the case of pigments, the application of small aqueous elastic hollow particles can reduce the amount of expensive pigments, such as titanium dioxide.

Below the invention is explained in more detail by examples.

Example 1 (version transferable layer).

For the formation of colored transferable layer prepared aqueous dispersion of the following status is Irma Worlee Chemie GmbH, Hamburg) - 23,42 weight. h,

LactimonWS (acrimonie salts of polycarboxylic acid and a copolymer polysiloxane) - 0.8 weight. h,

2-butoxyethanol - 1.5 weight. h,

Byk-034 (hydrophobic components type silicone in mineral oil) - 0.2 weight. h,

Byk-034 (hydrophobic silikonovye components in mineral oil) - 0.2 weight. h,

Byk-307 (a copolymer of dimethylpolysiloxane-modified polyesters) - 0.02 weight. h,

sorbitol - 5.00 weight. h,

silicic acid - 4.00 weight. h,

titanium dioxide - 35,00 weight. h,

elephant mobile - 0.06 weight. h,

water dispersion of hollow balls - 30,00 weight. h,

total 100,00 weight. h

The water dispersion of small hollow spheres prepared as follows.

800 weight. including Ropaqueemulsion PR-62 LO-E, supplied to the market by the company Rohm and Haas Company, Philadelphia, USA (consisting of forming polymer films with effective solids content of 52%, the actual solids content of 37.5% and the pH constituting 8,0 - 8,7 (particle diameter of 0.4 μm, an internal diameter of 0.28 μm)) is mixed with 176 weight. hours water, 2 weight. including antifoaming additive (Byk-034 - hydrophobic siliconate 100 weight. hours of concentrated formic acid 900 weight. including water). Share this acidified dispersion in the above composition is 30 weight. h

The above-described coating mass is applied using a squeegee on the treated silicone paper substrate in an amount of 18 g/m2then at a temperature of approximately 80oC in a stream of warm air to evaporate the water.

Then using a squeegee on the tinted coating layer is applied aqueous dispersion of the following composition:

glue on acrylato basis (synthetic variance VP 859/6 company Freihoff, the copolymer based on a complex ester of acrylic acid) and 57.3 weight. h,

water - 41,1 weight. h,

ammonia - 1,6 weight. h,

total 100.0 weight. h

This adhesive coat using a squeegee is applied in an amount of 3 g/m2. Then at a temperature of approximately 80oC in a stream of warm air to evaporate the water. The water inside the hollow particles transferable layer remains there.

Received transfer tape to a special extent, suitable for application to handwritten and printed characters on paper. It provides a quick and uniform overlay coating strips on which you can write, with a pass-through tape is applied serially proizvoditeli, line characters in the study under the microscope do not bleed.

Example 2 (version transferable layer).

For the formation of colored transferable layer prepared aqueous dispersion of the following composition:

water akrylatovy dispersion (25% content of the commercial product Worleecryl7712W company Worlee Chemie GmbH, Hamburg) - 23,42 weight. h,

LactimonWS (acrimonie salts of polycarboxylic acid and a copolymer polysiloxane) - 0.8 weight. h,

2-butoxyethanol - 1.5 weight. h,

Byk-034 (hydrophobic siliconsamurai components in mineral oil) - 0.2 weight. h,

Byk-307 (a copolymer of dimethylpolysiloxane-modified polyesters) - 0.02 weight. h,

sorbitol - 5.00 weight. h,

silicic acid - 4.00 weight. h,

titanium dioxide - 35,00 weight. h,

elephant mobile - 0.06 weight. h,

water dispersion of hollow balls - 30,00 weight. h,

total 100,00 weight. h

This dispersion was applied as described in example 1. The formation of the adhesive layer is also similar to example 1.

Example 3 (a variant of the adhesive layer).

For the formation of colored transferable layer prepared water dinova (50%) (synthetic variance VP 859/6 company Freihoff) and 57.3 weight. h,

ammonia - 1,6 weight. h,

sorbitol - 10.0 weight. h,

RopaqueOP-62 LO-E (37,5%) - 15.0 weight. h,

total 100.0 weight. h

The formation of the adhesive layer was carried out in accordance with example 1.

Example 4 (a variant of the adhesive layer).

For the formation of colored transferable layer prepared aqueous dispersion of the following composition:

the adhesive composition according to example 2,

water - 21.1 weight. h,

glue on acrylato basis (50%) (synthetic variance VP 859/6 company Freihoff) and 57.3 weight. h,

ammonia - 1,6 weight. h,

sorbitol - 5.0 weight. h,

RopaqueOP-62 LO-E (37,5%) - 15.0 weight. h,

total 100.0 weight. h

The formation of the adhesive layer was carried out in accordance with example 1.

1. Multilayer flexible transfer tape to the substrate and the adhesive layer, in which between the substrate and the adhesive layer is containing a binder conversion layer, the adhesive force with which the adhesive layer is larger than the substrate, characterized in that the binder containing conversion layer and/or the adhesive layer contains fine hollow particles and a water-soluble solid alcohol.

2. Transfer tape under item 1, characterized in that the fine hollow particles are alasti the jaś fact, the diameter of the particle is: in the case of finding them in the binder containing transfer layer is from about 0.3 to 10 μm, and in case of their presence in the adhesive layer is from about 0.3 to 2 μm.

4. The transfer tape according to any one of paragraphs.1 to 3, characterized in that the internal volume of the hollow particles is from about 20 to 55%, particularly from about 25 to 40% of their total volume.

5. The transfer tape according to any one of paragraphs.1 to 4, characterized in that binder containing transfer layer contains a water-soluble solid alcohol in an amount of about 3 to 25% by mass.

6. Transfer tape on p. 4, characterized in that the content of the hollow particles in the binder containing the bill of the layer is about 1 to 25%.

7. Transfer tape on p. 4, characterized in that the content of the hollow particles in the adhesive layer is about 1 to 25%.

8. Transfer tape on one or more of the preceding items, wherein the content of water-soluble solid alcohol in the adhesive layer is from about 1 to 40%.

 

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12 cl, 10 dwg

FIELD: polygraphy.

SUBSTANCE: invention can be applied in polygraphy industry. It concerns transfer of decal film layer to the material to be stamped. Stamp unit includes two backup rolls and at least one guide roll. The rolls are placed at some distance from each other, their axes parallel. Stamp tape rotates around backup and guide rolls. A backup body with smooth sliding surface is placed between the backup rolls to support the stamp tape. The backup body forms a junction between the stamp film and the stamped material.

EFFECT: improves quality and speed of stamping.

9 cl, 7 dwg

FIELD: technological processes.

SUBSTANCE: decorative layer is hydraulically transferred to product. Composite of resin hardened by ultraviolet radiation, which comprises photopolymerised prepolymer, photopolymerised monomer and photoinitiator, which does not contain dissolvent, is applied on dry printed pattern of transfer film. Product is pushed in water together with transfer film with printed pattern, activated activating component that does not contain dissolvent in composite of resin hardened by ultraviolet radiation.

EFFECT: improved characteristics of decorative layer surface.

5 cl, 29 dwg

FIELD: technological processes.

SUBSTANCE: decorative layer is formed by the following stages: resin composition is applied, which does not contain dissolvent and is hardened by ultraviolet radiation, onto printed pattern of film for transfer to restore adhesion of printed pattern by activating component, item is forcedly submerged in water together with film for transfer to transfer printed pattern onto item surface, then item that has printed pattern transferred on it, comprising resin composition hardened by ultraviolet radiation, is radiated by ultraviolet radiation, resin composition is hardened into condition, in which resin is completely fixed to printed pattern to form decorative layer.

EFFECT: creation of different decorative layers with functions of mechanical and chemical protection of surface.

5 cl, 11 dwg

FIELD: chemistry.

SUBSTANCE: coating agent containing the composite resin curing by ultraviolet radiation and applied to the film transferred under water pressure does not contains the organic solvent but contains the photopolymerising prepolymer, photopolymerising monomer and optical initiator and has the viscosity 10-100 cP (25°C) and paint solubility 10 or more at "ПР"-value.

EFFECT: invention allows to successfully and efficiently implement the adhesion reduction of the dry print design of the film transferred under water pressure and to impart to print design ability of the ultraviolet radiation curing.

4 cl, 10 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of multi-layer bodies with controlled or preset electric conductivity. Multi-layer body, in particular decalcomania, comprises replicative lacquer layer and metal layer arranged on the former. Note here that said multi-layer body has multiple microscopically small figured areas and background area surrounding each said figured area. Said figured areas are arranged in the form of D-wide-pattern and are separated by background area at distance B. Proposed invention covers also method to produced above described body.

EFFECT: producing required electric conductivity.

36 cl, 11 dwg, 2 tbl

FIELD: printing.

SUBSTANCE: invention relates to a method of production of protective element with two or more image reproducing layers located with accurate register with respect to each other. The method of production of protective element (1) for a counterfeit-proof paper or valuable object (2) consists in the following steps: a) preparing of first separate part (10) of the protective element having a first substrate (11), the first functional layer (12) with first functional sections (13) and first non-image sections (14) and if necessary the layer (35) of photoresist adhesive on the first functional layer (12), combined with the first functional sections (13); b) preparing of second separate part (20) of the protective element having a second substrate (21) and the second functional layer (22) on the second base (21) or on the intermediate layer (25) between the second substrate and the second functional layer (22) which is made detachable from the second substrate (21) or the intermediate layer (25); c) on the first (10) or second (20) separate part of the protective element the adhesive layer (30) of radiation-conditioned adhesive is applied if on the first functional layer (12) of the first separate part (10) of the protective element a layer (35) of photoresist adhesive is not provided, c1) from the first functional layer (12) of the first separate part (10) of the protective element, or c2) from the first substrate (11) of the first separate part (10) of the protective element; or c3) from the second functional layer (22) of the second separate part (20) of the protective element; d) the first (10) and second (20) separate parts of the protective element are combined to each other to the consisting of them a multilayer structure (5) in such a manner that d1) in case when the adhesive is provided on the first separate part (10) of the protective element, the adhesive layer (30, 35) and the second functional layer (22) of the second separate part (20) of the protective element face each other, or d2) in case when the adhesive is provided on the second separate part (20) of the protective element or the adhesive layer (30) and the first functional layer (12) of the first separate part (10) of the protective element or the adhesive layer (30) and the first substrate (11) of the first separate part of the protective element (10) face each other; e) the adhesive layer (30) in cases when the radiation-conditioned adhesive is provided; e1) is irradiated after formation of the multilayer structure (5) through the first separate part (10) of the protective element or e2) in cases c1) and c2), when the radiation-conditioned adhesive is provided on the first separate part (10) of the protective element, is exposed alternately to form a multilayer structure (5) by irradiating the first separate part (10) of the protective element through its first functional layer (12), which serves as a mask for the exposure, whereby in the adhesive layer (30) the non-irradiated sections (33) are formed which are aligned with the first functional sections (13), as well as radiation-conditioned sections (34) aligned with the first non-image sections (14); f) the first (10) and second (20) separate parts of the protective element are glued together, preferably at increased pressure and increased temperature, at that glueing is provided by either the non-irradiated sections (33), or the conditioned sections (34) of the adhesive layer (30) or sections with photoresist adhesive (35); g) the second substrate (21) is separated from the glued multilayer structure (5), at that the second functional layer (22) to form second functional sections (23) or g1) remains adhered to the non-irradiated sections (33) of the adhesive layer (30) but does not stick to its conditioned sections (34) and is separated on them together with the second substrate (21) or g2) remains adhered to the conditioned sections (34) of the adhesive layer (30) but does not stick to its non-irradiated sections (33) and is separated on them together with the second substrate (21) or g3) remains adhered to the sections with the photoresist adhesive (35) but does not stick to the sections without it and is separated on them together with the second substrate (21).

EFFECT: development of the method that would enable to carry out pictures or images combined with each other with accurate contours and high register accuracy.

17 cl, 7 dwg

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