Sheet of volume hologram for embedding, paper for forgery prevention and map

FIELD: printing.

SUBSTANCE: invention relates to a sheet of volume hologram for embedding, as well as paper and map for forgery prevention, comprising such sheet. The sheet of volume hologram for embedding comprising: a layer of a volume hologram; and a substrate located on only one side surface of the volume hologram layer by using an adhesive agent. Resistance to delamination of the volume hologram layer and the substrate is 25 g.wt./25 mm or more. Paper for forgery prevention comprises the said sheet of volume hologram. The map is a volume hologram sheet located between two sheets.

EFFECT: production of a thin sheet of a volume hologram for embedding, resistant to mechanical stress, such as tensile stress, shear stress and compressive stress, during treatment, even under conditions of heating, as well as production of paper for forgery prevention and a map, using this sheet.

8 cl, 8 dwg, 12 ex

 

The technical field

The present invention relates to the list of volume holograms for embedding used in applications such as paper and card to prevent tampering.

The level of technology

Holography is a technology in which the wavefront of the light beam of the object is recorded in the form of interference fringes on the photosensitive material by the interference of two light beams with the same wavelength (object light beam and reference light beam)to get the phenomenon of diffraction by interference fringes, when the light beam having the same wavelength as the reference light beam, during the recording of interference fringes is directed to play the same wave front, which had the original object light beam. As this hologram has such advantages as beautiful appearance and the difficulty of obtaining copies, it is often used in security applications, etc. In particular, in the field of plastic cards, presents credit cards and cards for cash, cards with holograms are widely used mainly to prevent copying and providing superior design.

Holograms can be classified into several groups according fo the IU record interference fringes. Representatives of the groups are the hologram surface-relief and three dimensional hologram. In this case, the hologram surface topography includes a holographic image recorded by generating detailed rough pattern on the surface of the holographic layer. On the other hand, the volume hologram comprises a hologram image recorded by a three-dimensional view of interference fringes in the thickness direction, generated by the interference of light in the form of strips with different refractive indices. Among these holograms, since the volume hologram comprises a hologram image recorded by the refractive index difference between the materials, it has the advantage that its copying is complicated in comparison with a relief hologram, so you can expect its use in such applications as a means of preventing forgery of securities and cards.

There are numerous examples of holograms as a means of preventing forgery or means of design improvements. As an example, presents filiform hologram used in various paper formats.

Filiform hologram is formed on part of the paper to prevent paddleboating media property value such as securities. Since this is a thread hologram is formed only on part of the paper, for paper can be provided to effect a good protection against forgery and good design features, and the hologram surface relief is widely used nowadays in different paper. In addition, prevention of counterfeits can be improved by using as the volume hologram of the hologram.

The paper formed from filamentous hologram is made, as a rule, by applying the hologram sheet for a thread on the paper during the creation of paper. Here at the application stage of the hologram sheet for a thread on paper (hereinafter in this document, it may be referred to as application stage), because the hologram sheet for a thread is usually applied on a paper medium by mechanical strain in conditions of heat, to cure them of the application stage, the hologram sheet for a thread should have a high mechanical strength against the tensile stresses or shear stresses in conditions of heat, that is, must possess high mechanical resistance against mechanical stress such as tensile stress and shear stress.

Here, in the patent the literature 1 describes a technique for achieving high strength in terms of heat by creating a layer of sheet volume hologram for the filament in the form of the first protective layer/a layer of a volume hologram/second the protective layer as a hologram sheet for a thread dimensional holograms. However, despite the fact that the volume hologram for filament sheet in patent literature 1, to some extent, has resistance against mechanical stress such as tensile stress and shear stress, in terms of heat, because the film thickness is large because of the need to use two layers of the protective layer, a paper with a printed list of volume holograms for the filament has a roughness on the surface, then there is a problem that is unlikely to be obtained paper with a smooth surface.

Therefore, there is a need for thin-film sheet dimensional holograms for threads with excellent resistance against mechanical stress such as tensile stress and shear stress, in terms of heat.

In addition, as another example of the use of holograms as a means of preventing forgery or a means of improving the characteristics of the design, known card with a hologram.

As a way to provide a hologram for the map can be represented, for example, the method of attaching holographic printing, transfer hologram from film to transfer the hologram and method of embedding a hologram on Sitel card that it was visible from the outside.

Despite the fact that the method of attaching holographic printing and method of moving holograms are simple, there is a danger that the hologram will be charged and used for another purpose. In particular, the volume hologram usually tends to be thicker than the hologram surface topography, because of its properties of recording holographic images by three-dimensional location of a difference of refractive indices. Thus, on the surface of the card may form a difference in level due to the thickness of the volume hologram, which degrades the characteristics of the design and facilitates forgery by removing the hologram.

On the other hand, in the case of the method of embedding a hologram in the media card, forgery can be prevented, because to remove the hologram will be difficult. For example, in patent literature 2 disclose a card with a hologram disposed between the core layer and the upper layer. In accordance with this card, because the top layer is thicker than the hologram, the problem stems from the difference in levels due to the thickness of the volume hologram can be mitigated.

During the embedding of the hologram in media card, for example, as mentioned in patent literature 2, the core layer and the upper layer placed on them by the hologram layering and integration of iroute through press laminator under the conditions of heating. At this point, if the hologram hologram layer formed on the substrate, a problem arises : namely, that the air, covered by the hologram comes out and forms bubbles between the substrate and the hologram layer during operation of the heat press and flatulence layer of the hologram. In addition, the problem also lies in the fact that the substrate and the hologram layer are shifted in the process of operation of a heat press. Therefore, in order to withstand this stage, the hologram must have a high resistance against mechanical stress, such as tension compression under heating.

As mentioned previously, it is desirable that the hologram sheet to be embedded, used in case of drawing on paper or embedded in media card, had a high resistance against mechanical stress in pre-defined conditions of heating.

List of links

Patent literature

Patent literature 1: the Original publication of the patent application in Japan (JP-A) No. 2007-108253

Patent literature 2: JP-A No. 2002-307879

The invention

Technical problem

The present invention was developed taking into account the above-mentioned circumstances, and its main objective is the provision of a thin sheet volume hologram the s for embedding, sufficiently resistant to mechanical stress even during processing under conditions of heat, as well as paper and card to prevent counterfeiting using such a sheet.

Solution

In order to obtain a thin sheet of a volume hologram for threads designed for application on paper in terms of heat, as described above, the inventors of the present invention have attempted to provide sufficient resistance to mechanical stress such as tensile stress and shear stress, at the time of processing in conditions of heat, as described above, for a list of volume hologram having the configuration of the layers in a layer of a volume hologram and the substrate that is located only on one side of the surface layer of the volume hologram. In addition, in order to obtain a thin sheet of a volume hologram card, designed for embedding in the media card in conditions of heat, as mentioned above, the inventors of the present invention have attempted to provide sufficient resistance to mechanical stress, such as compressive stress, for a list of volume holograms during processing under conditions of heat, as described above. Then, the result of a detailed study they discovered that sufficient resistance to mechanical the voltage such as voltage, including tensile strength, shear stress and compressive stress, may be implemented during processing even in conditions of heat, as described above, by providing the resistance to peeling of a layer of a volume hologram and the substrate at the level of 25 g/25 mm or more, completing the present invention.

Thus, the present invention provides the list of volume holograms for embedding, comprising: a layer of the volume hologram and the substrate placed on only one side of the surface layer of the volume hologram using a bonding means, and the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more.

In accordance with the present invention, since the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more, during the production of paper to avoid fakes, maps, etc. using the list of volume holograms for embedding in terms of heating, the list of volume holograms for embedding can be provided with resistance to mechanical stress, such as tensile strength, shear stress and compressive stress, to the extent that there are no problems, which includes exfoliation layer surround th is ogramme, the formation of bubbles between the layer of the volume hologram and the substrate and a bias layer of a volume hologram and the substrate. In addition, since the list of volume holograms for embedding can be provided in the form of a thin film, even if it is applied on a paper medium at the stage of application or in the case of embedding it into the media card the surface of the paper or card can be smooth.

In the present invention is preferable that the main component of the resinous material used in the layer of the volume hologram, was an acrylic resinous material, and the substrate was made of polyester resin. Because this is a layer of a volume hologram containing resinous material as a main component, and the substrate made of the resin during the production of paper to avoid fakes, maps, etc. in terms of heating can be provided by the preferred mechanical strength against stress such as tensile stress, shear stress and compressive stress.

In the present invention is preferable that the bonding tool was a bonding layer, and the adhesive compound used in the adhesive layer, was a curable adhesive connection. Because curing glue the second connection is used in the adhesive layer, during the production of paper to avoid fakes, maps, etc. in terms of heating the sheet dimensional holograms to be embedded of the present invention is provided with the preferred resistance against mechanical stress such as tensile stress, shear stress and compressive stress.

In the present invention is preferable that the bonding tool was a simple bonding process, and a simple bonding process was a chemical process using a priming agent. Because it is a chemical process using a priming agent, the list of volume holograms for installation of the present invention is provided with the preferred resistance against mechanical stress such as tensile stress, shear stress and compressive stress during production of the paper to avoid fakes, maps, etc. in terms of heat.

Preferably, the list of volume holograms for installation of the present invention consisted of a list of volume holograms for the thread. In accordance with the present invention, since the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more, during production of the sheet p is edatrexate fakes etc. using the list of volume holograms for strands under conditions of heating can be provided a list of volume holograms for threads with mechanical strength against the tensile stresses and shear stresses to the extent that the problem of exfoliation layer of the volume hologram and the like did not occur. In addition, since the list of volume holograms for thread may be a thin film, the surface of the paper can be made smooth, even when drawing on a paper medium at the stage of application.

In addition, it also is preferred that the sheet dimensional holograms to be embedded of the present invention consisted of a list of volume hologram card. In accordance with the present invention, since the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more, during the production of the map using the list of volume holograms for the map in terms of heating can be provided with a list of volume holograms for a card that has resistance against mechanical stresses such as compression, to the extent that there are no problems such as the formation of bubbles between the layer of the volume hologram and the substrate and a bias layer of a volume hologram relative to the substrate.

The crust is ASEE the invention provides paper to avoid fakes, using the above list of volume holograms for installation.

In addition, the present invention provides a map in which the above list of volume holograms for embedding is located between the two sheets.

In accordance with the present invention, because it uses a list of volume holograms for embedding, it does not appear problems during production, and can be achieved highly effective prevention of counterfeiting.

Useful effects of the invention

In the present invention, since the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more, there can be provided a thin sheet of a volume hologram for embedding with sufficient stability against mechanical stress such as tensile stress, shear stress and compressive stress, even during processing under conditions of heating.

Brief description of drawings

Fig. 1 is a schematic view in cross section showing a variant implementation of the list of volume holograms for installation according to the present invention.

Fig. 2 is a schematic view in cross section showing another variant of implementation of the list of volume holograms for installation according to the present invention.

F is, 3 is a schematic view in cross-section, showing another variant implementation of the list of volume holograms for installation according to the present invention.

Fig. 4 is a schematic view in cross-section, showing another variant implementation of the list of volume holograms for installation according to the present invention.

Fig. 5A-5C are schematic diagrams showing an implementation option card according to the present invention.

Fig. 6 is a schematic view in cross section showing another variant of implementation of the card according to the present invention.

Description of embodiments

Below is a description of the list of volume holograms for embedding, paper to prevent counterfeiting and card of the present invention, respectively.

A. list of volume holograms for embedding

List of volume holograms for installation according to the present invention includes the layer of the volume hologram and the substrate placed on only one side of the surface layer of the volume hologram using adhesive means, and characterized in that the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more.

The resistance to peeling of the present invention Ave is dstanley a value measured on the basis of the 180 degree test exfoliation according to JIS Z0237. As a device for tensile test can be used, for example, a material test type Instron 5565™. The test sample is prepared by cutting the sheet of hologram 25 mm in width and 150 mm in length, attach double-sided adhesive tape of the same size on the side of the layer of the volume hologram, and further secure the plate SUS that it was recorded for the exfoliation of the film substrate with a speed of 300 mm / minute to measure the tensile strength (HS) in the structure, the operation of exfoliation is carried out continuously with resistance to flaking, corresponding to the width of 25 mm in Addition, for a sample having a width less than 25 mm, with the width "a" mm, the value obtained by multiplying the resistance to peeling, measured in the same way, the width "a" mm 25/a, is the resistance to delamination for a width of 25 mm

Next, the list of volume holograms for installation according to the present invention will be described with reference to the drawings. Fig. 1 is a schematic view in cross section showing a variant implementation of the list of volume holograms for installation according to the present invention. As shown in Fig. 1, the sheet 10 volume holograms for strayan the I of the present invention includes a layer 1 of a volume hologram and the substrate 2, placed only on one side surface of layer 1 dimensional holograms using a bonding layer 3.

In addition, in the present invention, the layer 1 volume hologram and the substrate 2 can be accommodated by simple bonding process "a" to the surface of the substrate 2, as shown in Fig. 2, instead of using the adhesive layer 3 as a bonding tool, as shown in Fig. 1. In addition, in the case of using the bonding layer 3 or simple bonding process "a" as the bonding means, the present invention differs in that the resistance to the peeling layer 1 volume hologram and the substrate 2 is 25 g/25 mm or more.

Here, during the production of paper to prevent forgeries, etc. using the list of volume holograms for installation (sheet volume hologram for the thread), because the list of volume holograms for the filament is applied on a paper medium by mechanical stretch in terms of heat resistance, resistance against mechanical stress such as tensile stress and shear stress, under conditions of heat is required to such an extent that the sheet could withstand the treatment. In accordance with generally offer a list of volume holograms for threads that have a layer of what, I can pay tithing protective layer/layer volumetric holograms/the second protective layer, can be to a certain extent provided resistance against mechanical stress such as tensile stress and shear stress in terms of heat. However, since the film thickness is large due to the necessity of having two protective layers, the paper printed a list of volume holograms for the filament has unevenness on the surface, so the problem arises, namely, that one can hardly get a paper with a smooth surface.

In addition, during the embedding list of volume holograms for installation (sheet volume hologram card in the media card as a media card and a list of volume holograms are under pressure in terms of heat, you want the list of volume holograms had resistance to mechanical stress, such as compressive stress, in the conditions of heating to such an extent that he could sustain such a process.

As mentioned previously, it is desirable that the list of volume holograms for installation, such as a list of volume holograms for the thread and the list of volume holograms for the map, had a high resistance against mechanical stress in terms of heat.

Further, the inventors of the present invention tried to use a leaf of a volume hologram having the th layer from the layer volume hologram and the substrate, placed only on one side of the surface layer of the volume hologram, for a list of volume holograms for filament or sheet of a volume hologram for the map.

However, it is known that when the above-mentioned list of volume hologram having the configuration of layers, truly was applied to a paper carrier sheet volume hologram did not have the resistance against mechanical stress such as tensile stress and shear stress in conditions of heat, to such an extent that it could withstand the process, due to the detachment of the layer of the volume hologram sheet dimensional holograms or delamination layer of a volume hologram. Thorough discussions conducted by the inventors of the present invention to solve the problems, it was found that when the resistance to peeling of 25 g/25 mm or more layers of a volume hologram and the substrate sheet of a volume hologram having a layered configuration, in the above-described method of measuring the resistance to peeling, the problem of exfoliation layer of the volume hologram and the like do not arise in the case of paper production to avoid fakes, etc. using the list of volume hologram having a layered configuration in terms of heat.

In addition, in the case of real integration of the list of volume holograms have it layered configuration, in the media card, it was found that the layer of the volume hologram peel off from the sheet dimensional holograms due to the formation of bubbles between the substrate and the hologram layer, the substrate and the layer of the hologram shifted and that the list of volume hologram has no resistance against mechanical stress, such as compressive stress, in terms of heat sufficiently so that it could withstand the process due to bubble formation and displacement of the substrate and the layer of the hologram. Thorough discussions conducted by the inventors of the present invention to solve the problems, it was found that the problem of air bubbles between the substrate and the layer of the volume hologram, the displacement of the substrate and a layer of a volume hologram, etc. do not occur even in the case of making maps using the list of volume hologram having a layered configuration in terms of heat, if the resistance to peeling of a layer of a volume hologram and the substrate sheet of a volume hologram having a layered configuration, is 25 g/25 mm or more when measured in accordance with the above-mentioned method of measuring the resistance to peeling.

Based on these research results, the inventors of the present invention have completed the present invention.

In accordance with the present invention, because the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more, even with the configuration in which the substrate is placed with the use of adhesive means on one side of a layer of a volume hologram, during production of the paper to prevent forgeries, etc. using the list of volume holograms for embedding (list of volume holograms for threads) can be given a list of volume holograms for embedding (list of volume holograms for threads)with resistance against mechanical stress such as tensile stress and shear stress, under the conditions of heating to such an extent so as not had trouble peeling layer dimensional holograms, etc.

In addition, since the list of volume holograms for installation (sheet volume hologram for the threads) of the present invention has a configuration with the substrate placed, using adhesive means on one side of a layer of a volume hologram, the list of volume holograms for embedding (list of volume holograms for threads) can be represented in the form of a thin film, and therefore, the surface of the paper can be made smooth in the case of applying the sheet on the paper at the stage of application.

In addition, in accordance with the present invention, because the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more, even with the configuration in which the substrate is placed with the use of adhesive means on one side of a layer of a volume hologram, during production of the card using the list of volume holograms for injection may be given a list of volume holograms for embedding with resistance against mechanical stress, such as compressive stress, in the conditions of heating to such an extent that the problem of air bubbles between the layer of the volume hologram and the substrate, and a layer offset volume hologram and the substrate did not occur.

In addition, since the list of volume holograms for installation according to the present invention has a configuration with the substrate placed using adhesive means on one side of the surface layer of the volume hologram, the list of volume holograms for injection may be presented in the form of a thin film, resulting in the card surface can be made smooth in the case of embedding the sheet in the media card.

Here the list of volume holograms to embed" in the present invention means the list of volume holograms used in the case of embedding a hologram in the medium. Primarycolour the list of volume holograms for thread used in the case of a hologram on a paper medium, and a list of volume holograms for the card used in the case of embedding a hologram in a plastic carrier card.

"Mechanical strength against the tensile stresses and shear stresses in the conditions of heating in the present invention means such strength as the substrate, and the layer of the volume hologram sheet dimensional holograms for thread does not cause rupture, etc. due to the tensile stresses or shear stresses applied during application of the list of volume holograms for installation (sheet volume hologram for the threads) of the present invention on the paper. In the present invention to have a mechanical strength against the tensile stresses or shear stresses in the heating conditions" means the possession of the resistance against mechanical stress such as tensile stress and shear stress, in terms of heat".

"Resistance against mechanical stress such as tensile stress and shear stress, in terms of heating" means that the peeling is not generated between the substrate and the layer of the volume hologram sheet volume hologram for the filament, resulting in a gap is not formed, abrasion or folds, layers, etc. obtained from them, the result of the e application of the tensile stresses or shear stresses during application of the list of volume holograms for installation (sheet volume hologram for the threads) of the present invention on the paper.

In addition, the resistance against mechanical stress, such as compressive stress, in terms of heat" in the present invention means the property, namely, that the bubbles between the layer of the volume hologram and the substrate is not formed, and there is no bias layer of a volume hologram and the substrate, etc. due to the compressive stress exerted during injection of the list of volume holograms for installation (sheet volume hologram card) of the present invention in a media card.

Further, the resistance against mechanical stress such as tensile stress and shear stress and resistance to mechanical stress, such as tension compression" may be referred to simply as resistance against mechanical stress.

"Conditions of heat" specifically means the conditions of heating during the application of the list of volume holograms for installation (sheet volume hologram for the threads) of the present invention on a paper medium and the conditions of heating during injection of the list of volume holograms for installation according to the present invention in a media card. Conditions of heating during the application of the list of volume holograms for embedding on paper exactly are the conditions of heating in the range from 90°C to°C. In addition, the conditions of heating during the application of the list of volume holograms for embedding media cards specifically are the conditions of heating in the range from 120°C to 180°C.

In addition, in the present invention it was found that the condition of providing sufficient stability against mechanical stress during processing in the conditions of heating the list of volume holograms for embedding corresponds to the resistance of exfoliation 25 g/25 mm or more layers of a volume hologram and the substrate. By using this condition can also be achieved effective implementation of the design to the production of the list of volume holograms for embedding and post-production.

More specifically, in the case of production of a list of volume holograms for embedding, it can be done in terms of setting the composition of the materials used for each element, development, combination of elements, etc. that the resistance to peeling of a layer of a volume hologram and the substrate was kept in the above range.

In addition, the produced list of volume holograms for embedding can be tested resistance to peeling layer of a volume hologram and the substrate in order to know whether it can be used or not.

Next will be explained confit is urali, used in the list of volume holograms for installation of the present invention, respectively.

1. The layer of the volume hologram

First will be described layer of the volume hologram in the present invention. The layer of the volume hologram used in the present invention has a recording function of a difference of refractive indices on the principle of volumetric holograms and, through this, the implementation of optical image.

In addition, the layer of the volume hologram used in the present invention has a configuration with the substrate placed on one of the side surfaces using adhesive means.

(1) component Materials

First will be described the component materials for the layer of a volume hologram in the present invention.

Materials for providing a layer of a volume hologram used in the present invention are not specifically limited provided that they can be recorded volume hologram, the substrate may be placed only on one side of the surface layer of the volume hologram using a bonding tool, and resistance to peeling of a layer of a volume hologram and the substrate may have a predetermined value, so that the material used for the usual layer of a volume hologram, it is not necessary to use. In cachestorage material can be presented, for example, known materials for recording volume holograms, such as the material of the salts of silver gelatin emulsion Baranay acid, photopolymerized resin and photochemically stitched resin. In particular, the present invention can be preferably used (a) a first photosensitive material containing resinous material, photopolymerizable connection, the initiator of photopolymerization and sensitive pigment, or (b) the second photosensitive material containing a cation-curable compound, a radically curable compound, a radical initiator, the photopolymerization initiator and the cationic photopolymerization.

Next will be sequentially described first photosensitive material and the second photosensitive material.

(a) a First photosensitive material

First will be described the first photosensitive material. As described above, the first photosensitive material comprises a resinous material, photopolymerizable connection, the initiator of photopolymerization and sensitive pigment.

(i) a Resinous material

The resinous material used in the present invention are not specifically limited provided that it can provide a layer of the volume hologram with the resistance to peeling of a layer of a volume hologram and the substrate 25 g is/25 mm or more, which will be described later. For example, a layer of a volume hologram can be used such resinous material, such as poly(meth)acrylate or its partially hydrolyzed product of polyvinyl acetate or its partially hydrolyzed product of polyvinyl alcohol or partially acetylated product, triacetylcellulose, polyisoprene, polybutadiene, polychloroprene, polyvinyl chloride, polyarylate, chlorinated polyethylene, chlorinated polypropylene, poly-N-vinyl carbazole or its derivative, poly-N-vinyl pyrrolidone or its derivative, a copolymer of styrene and maleic anhydride or its polyether and a copolymer having as one component of the polymerization of at least one component, selected from the group copolymerizing monomers, such as acrylic acid, acrylate, acrylamide, Acrylonitrile, ethylene, propylene, vinyl chloride and vinyl acetate. In addition, these resins may be used in the form of a mixture of different types. In the present invention, it is preferable to use acrylic resin as a main component among all the above-mentioned resins. In addition, among the acrylic resins are especially preferred is the use of polymetylmetacrylate resin as a main component.

(ii) Photopolymerizable connection

As photopolymerizing soedineniya to be used photopolymerizable, potassium monomers, oligomers, prepolymers having at least one ethyleneamine bond in the molecule, or a mixture of the above, which will be described later. In particular, can be represented by unsaturated carboxylic acid or its salt, ester of unsaturated carboxylic acids and aliphatic polyhydric alcohol component, an amide compound, unsaturated carboxylic acids and aliphatic polivalente amine compound.

Here, specific examples of the monomer of unsaturated carboxylic acids include acrylic acid, methacrylic acid, taconova acid, crotonic acid, isocrotonic acid and maleic acid. In addition, specific examples of the monomer of an aliphatic ether compounds of polyhydric alcohol and an unsaturated carboxylic acid include, as acrylate, ethylene glycol diacrylate, triethylene glycol diacrylate, 1,3-butanediol diacrylate, tetraethyleneglycol diacrylate, propylene glycol diacrylate, neopentylglycol diacrylate, trimethylolpropane triacrylate, trimethylolpropane three(acryloyloxy propyl) ether and trimethylated triacrylate.

As examples of the methacrylate can be represented tetraethyleneglycol dimethacrylate, triethylene glycol dimethacrylate, neopentylglycol dimethacrylate, trimethylolpropane trimethacrylate, trimetal the ethane trimethacrylate. In addition, as examples of itaconate can be represented by ethylene glycol, digitalnet, propylene glycol vitacoat and 1,3-butanediol vitacoat. In addition, as examples crotonate can be represented by ethylene glycol microtonal, tetraethyleneglycol microtonal, pentaerythritol microtonal and sorbitol tetrachromat. In addition, as examples isocrotonic can be represented by ethylene glycol diisocyanate, pentaerythritol diisocyanate and sorbitol tetraisostearate. In addition, as examples maleate can be represented by ethylene glycol, dimiat, triethylene glycol demolet, pentaerythritol dimiat and sorbitol citramalate.

As examples halogenosilanes unsaturated carboxylic acid can be represented 2,2,3,3-tetrafluoropropyl acrylate, 1H,1H,2H,2H-heptadecadiene acrylate and 2,2,3,3-tetrafluoropropyl methacrylate.

In addition, as specific examples of the amide monomer of unsaturated carboxylic acids and aliphatic polivalenta amine compounds can be represented methylene bis-acrylamide, methylene bis-methacrylamide, 1,6-hexamethylene bis-acrylamide and 1.6-hexamethylene bis-methacrylamide.

(iii) the Initiator of photopolymerization

As an initiator of photopolymerization used in the present invention may be represented, for example, 1,3-di(t is et-butyl dioxirane) benzophenone, 3,3',4,4'-tetrakis(tert-butyl dioxirane) benzophenone, N-phenyl glycine, 2,4,6-Tris(trichloromethyl)-s-triazine, 3-phenyl-5-isooxazolyl, 2 - mercaptobenzimidazole and imidazole dimers. In particular, it is especially preferred that the initiator of photopolymerization used in the present invention, had the decomposition process after the recording of the hologram from the point of view of stabilization of the recorded volume hologram. For example, organic peroxides are easily decomposed by irradiation with ultraviolet rays and, thus, it is preferred.

(iv) Sensitive pigment

As examples of sensitive pigment used in the present invention, can be presented based on thiapyrilium salt pigment, based on merocyanine pigment, based on the quinoline pigment, based on sterrhinae pigment-based ketoconazole pigment-based thioxanthene pigment-based kantenah pigment, based on oxonol pigment, alaninemia dye, adaminaby dye, based on thiapyrilium salt pigment, based on prelievo Jonah pigment and based on diphenyl-iodonium Jonah pigment.

(b) a Second photosensitive material

Next will be described the second photosensitive material used in the present invention. As b is lo described above, the second photosensitive material contains a cation curable compound, a radically curable compound, the initiator of the radical photopolymerization initiator and a cationic polymerization.

Here, in the case of using such a second photosensitive material as a way of recording volume holograms in a layer of the volume hologram is used way direction of a light beam for exposing the initiator for radical photopolymerization, such as a laser beam (first exposure), and then the direction of the light beam with a wavelength different from the wavelength of the laser beam for exposure of the initiator of the cationic photopolymerization.

(i) Cation-curable compound

As a cation-curable compounds, from the viewpoint that the polymerization of the radically curable component is, preferably, in a composition with a relatively low viscosity, it is preferable to use compounds which are liquid at room temperature. As such a cation-curable compounds may be represented, for example, diglycerin fluids, pentaerythritol policyliteracy ether, 1,4-bis(2,3-epoxy propoxy PERFLUORO isopropyl) cyclohexane, sorbitol polyglycidyl ether, 1,6-hexanediol glycidyloxy ether, p is litile glycol diglycidyl ether and phenylglycidyl ether.

(ii) a Radically curable compound

As radically curable compounds are the preferred compounds having at least one ethyleneamine double bond in the molecule. In addition, the average refractive index of the radically curable compound used in the present invention, preferably more than the average refractive index cation polymerized compounds, and particularly preferably, an increase of 0.02 or more. This is the reason for the formation of a volume hologram by means of a difference of refractive indices between the radically curable compound and cation curable compound. Therefore, when the average difference between the refractive indices less than or equal to the above value, the modulation of the refractive index is insufficient. As examples of the radically curable compound used in the present invention, can be represented acrylamide, methacrylamide, styrene, 2-Postira, phenylacrylate, 2-phenoxyethylacrylate, 2,3-naphthalene dicarboxylic acid (aryloxides) monoether, methylphenoxyacetic, nonylphenoxyacetic and hydroptila β-Acrylonitrile.

(iii) an Initiator for radical photopolymerization

The initiator for radical photopolymerization, use the Amy in the present invention, not specifically limited provided that it can produce active radicals by the first exposure while recording a volume hologram in such a way that the active moiety will polimerizuet radically curable compound. In addition, the photosensitive substance is often considered as a light absorbing component, and generating an active radical connection or generating acid compound may be used together. Although painted the connection, such as a pigment, often used for absorption of the visible laser beam, in the case of providing transparent hologram as a photosensitive substance initiator for radical photopolymerization, it is preferable to use based on cyanine pigment. Because based on cyanine the pigment is usually easily decomposed by light, the pigment in the hologram is decomposed that no absorption in the visible range, by subsequent exposure in the present invention or by abandonment within a few hours to several days under the influence of indoor lighting or sunlight, and, as a result, can be obtained colorless transparent volume hologram.

As specific examples based on cyanine pig is enta can be represented by anhydrous-3,3'-dicarboxyethyl-9-ethyl-2,2 thiacarbocyanine betaine, the anhydrous-3-carboxymethyl-3',9'-diethyl-2,2' thiacarbocyanine betaine, 3,3',9-triethyl-2,2'- thiacarbocyanine•Iodate, 3,9-diethyl-3'-carboxymethyl-2,2'- thiacarbocyanine•Iodate, 3,3',9-triethyl-2,2' -(4,5,4',5'-Xanten) thiacarbocyanine•Iodate, 2-[3-(3-ethyl-2 - benzothiazoline)-1-propenyl]-6-[2-(3-ethyl-2 - benzothiazoline) ethylidene imino]-3-ethyl-l,3,5-mediately-Iodate, 2-[[3-allyl-4-oxo-5-(3-n-propyl-5,6-dimethyl-2 - benzothiazole ilidene)- ethylidene-2-thiazolidinedione]methyl]3-ethyl-4,5-diphenyl of thiazoline-Iodate, 1,1',3,3,3',3'-HEXAMETHYL-2,2'-indotricarbocyanine•Iodate, 3,3'-diethyl-2,2'-tetracarbonyl•perchlorate, anhydrous-1-ethyl-4-methoxy-3'-carboxy methyl-5'-chloro-2,2'-hinote cyanin betaine and triethylamine salt hydroxide, anhydrous-5,5'-diphenyl-9-ethyl-3,3'-disulphophenyl of oxcarbazepine. Can be used one of the above-mentioned substances or a combination thereof.

As an active radical generating component can be represented, for example, diarylethene salt or 2,4,6-substituted-1,3,5-triazine. If you want high photosensitivity, particularly preferred are diarylethene salt. Specific examples dailytonic salts include chlorides diphenylethane, 4,4'-dichlorophenyl iodone, 4,4'-dimethoxybiphenyl iodone, 4,4'-durational butyldiphenylsilyl and 3,3'-dinitrodiphenyl iodone, bromides, tetrafluoroborate, hexaflurophosphate, hexaferrite is, hexafluoroantimonate, triftorbyenzola and 9,10-dimethoxy anthracene-2-sulfonate. In addition, specific examples of 2,4,6-substituted-l,3,5-triazines include 2-methyl-4,6-bis(trichloromethyl)-1,3,5-triazine, 2,4,6-Tris(trichloromethyl)-1,3,5-triazine, 2-phenyl-4,6-bis(trichloromethyl)-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-(p-methoxy phenyl vinyl)-1,3,5-triazine and 2 -(4'-methoxy-1'-naphthyl)-4,6-bis(trichloromethyl)-1,3,5-triazine.

(iv) a cationic Initiator of photopolymerization

The initiator for cationic photopolymerization, used in the present invention are not specifically limited provided that it is an initiator having a low sensitivity with respect to the first exposure while recording a volume hologram, but it is exhibited by a further exposition in the form of a direction of a light beam with a wavelength different from the wavelength of the first exposure, to generate acid of Bronsted or Lewis acid for cation polymerization-curable compounds. In particular, the present invention is especially preferred to use initiator, not polymersomes cation-curable compound during the first exposure. As such a cationic initiator of photopolymerization can be represented, for example, diarylethene salt, triarylsulfonium salts and complex is Eliza and arena. As a preferred example dailytonic salts can be represented godonii listed as an initiator for radical photopolymerization, such as tetrafluoroborate, hexaflurophosphate, hexafluoroarsenate, hexafluoroantimonate. As a preferred example triarylsulfonium salts can be represented triphenylsulfonium and 4-tertiary-butyl triphenylsulfonium.

(2) the Rest

Because the list of volume holograms for installation of the present invention is used in the process of printing on a paper medium or embedded in the media card, then the thickness of the volume hologram used in the present invention, preferably is in the range conducive to drawing on paper media or embed a media card, in accordance with the substrate, etc. that will be described below. More specifically, a preferred range of from 0.1 μm to 50 μm, and especially preferred is the range from 1 μm to 20 μm.

2. Substrate

The substrate used in the present invention, is placed only on one surface of the layer of the volume hologram using a bonding tool.

Here, the substrate in the present invention means a substrate having a melting point higher than in the above-mentioned heating conditions. It is necessary flux is, what if the melting temperature of the substrate is the same or less than under conditions of heat, when applied to paper or embedded in the media card sheet dimensional holograms to be embedded of the present invention becomes difficult.

More specifically, as a material for the substrate can be represented resin including a polyester resin such as polyethylene, polypropylene, polyethylene fluoride, polyvinylidene fluoride, polyvinyl chloride, polyvinylidene chloride, a copolymer of ethylene-vinyl alcohol, polyvinyl alcohol, polymethylmethacrylate, polyethersulfone, polyether ether ketone, polyamide, copolymer of a tetrafluoroethylene-perfluoroalkyl vinyl ether and polyethylene terephthalate, and polyimide resin. In particular, it is preferable to use polyester resins. In addition, among the polyester resins, it is preferable to use polyethylene terephthalate.

Since the substrate made of the above resin is used during production of the paper to avoid fakes, maps, etc. using the list of volume holograms for installation in conditions of heat, you can provide a list of volume holograms for embedding, having preferred mechanical strength.

The substrate can be used only one type of resin, or may use is to be a mixture of many types of resins.

The substrate used in the present invention may be transparent or may not be transparent. In addition, the substrate may be colored to such an extent that the layer of the volume hologram can be recognized visually.

In the present invention, the substrate may contain an additive. As such additives can be represented supplements that perform the function of improving the visibility of an optical image of a layer of a volume hologram in the list of volume holograms for installation of the present invention, and performs the function of ensuring that the characteristics of the design for the list of volume holograms for installation according to the present invention. As such additives can be represented, for example, coloring agents such as dyes and pigments, agents, absorbing ultraviolet rays, and stabilizing agents to provide resistance to weather conditions. In the case where the substrate contains absorbing ultraviolet rays of the agent, it can also serve as a layer of protection from UV rays, which will be described later. In the case where the substrate also serves as a layer of protection from ultraviolet rays, may be used a substrate containing absorbing ultraviolet rays of the agent.

The thickness of the substrate used in the present invention, preferably located is designed in the range allows to apply the sheet thickness dimensional holograms to be embedded of the present invention on a paper medium or embed the worksheet in the map in accordance with the thickness of the layer volume holograms, etc. more Specifically, it is preferably in the range from 2 to 50 μm, and especially preferably, it is in the range from 6 to 25 μm.

3. The bonding tool

The bonding tool used in the present invention, is used for placing the substrate on one side of the surface layer of the volume hologram.

Such bonding means is not specifically limited provided that it can be bonded layer of a volume hologram and the substrate so that the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more. More specifically, can be represented adhesive layer and the process is simple gluing. Next will be described the bonding layer and the process is simple bonding, respectively.

(1) Adhesive layer

Adhesive layer used in the present invention, is formed between the layer of the volume hologram and the substrate for bonding so that the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more.

The adhesive compound used in the adhesive layer is not specifically limited the tsya provided the resistance to peeling of a layer of a volume hologram and the substrate can be in the above range, but it is preferably curable adhesive connection. Here, "curable adhesive compound" in the present invention means the so-called thermosetting adhesive connection, adhesive connection, power lines, etc. that otverzhdajutsja by formation of a lattice structure by cross-linking caused by chemical reaction in the promotion of heat or energy line (ultraviolet ray or electron beam). Because this is a curable adhesive connection, preferable mechanical strength can be ensured for a list of volume holograms for installation according to the present invention during the production of paper to avoid fakes, maps, etc. in terms of heat.

In the present invention as a curing adhesive connection can be used photoreactive adhesive connection, and thermosetting adhesive connection.

In particular, as a curable adhesive compounds used in the present invention, it is preferable to use thermosetting adhesive connection. In addition, as a thermosetting adhesive compounds especially preferred is sustained fashion is the use of solvent-based thermosetting adhesive connection. Because you are using solvent-based thermosetting adhesive connection, it is preferable mechanical strength can be ensured for a list of volume holograms for installation according to the present invention during the production of paper to avoid fakes, maps, etc. in terms of heat.

The bonding layer may contain absorbing ultraviolet rays of the agent. When the adhesive layer contains absorbing ultraviolet rays of the agent, it can also serve as a layer of protection from UV rays, which will be described later.

The thickness of the adhesive layer is not specifically limited provided that the property of binding can be implemented to the extent that the resistance to peeling of a layer of a volume hologram and the substrate was pre-determined value, but preferably the thickness is in the range from 1 to 10 μm. When the film thickness of the bonding layer is less than the above range, it becomes difficult obtaining the resistance to peeling of a layer of a volume hologram and the substrate in a predetermined range. In addition, in the case where the film thickness adhesive layer exceeds the above range, the thickness of the sheet dimensional holograms to be embedded of the present invention becomes too thick resulting in unevenness becomes conspicuous in the case of drawing on paper or by embedding in the map.

(2) the Process is simple bonding

The process is simple bonding used in the present invention are not specifically limited provided that the layer of the volume hologram and the substrate can be bonded so that the resistance to peeling of a layer of a volume hologram and the substrate will be 25 g/25 mm or more. For example, can be represented by physical processes, such as plasma treatment, corona discharge, glow discharge treatment and the treatment with flame, and chemical processes with the use of chromic acid, silicone sizing and priming agent.

In the present invention, particularly preferred is a chemical process with the use of a priming agent. As a primer agent are preferred as being processed during the production of the film substrate, and processed on the film substrate after production. As such a film substrate treated with a priming agent, can be used commercially available film. More specifically, can be represented, for example, a PET film with a layer of simple bonding A4100™, T4100™manufactured by Toyobo Co., Ltd., Teijin (registered trademark) Tetoron registered trademark) film HPE, produced by Teijin DuPont Films Japan Limited, Emblet (registered trade mark is) S, PTM, PET, produced by Unitika Limited, and the material for easy gluing AC-X™, AC-L™, AC-W™manufactured by Panac Corporation, etc.

In addition, a priming agent for processing on the film substrate after production can be a material, bounding with the material volume hologram. In particular, preferred is an acrylic resinous material, and, furthermore, preferred is a material comprising as a main component methacrylic resin such as polymethyl methacrylate, and, as an additive, the material having a low glass transition point to improve bonding properties. In addition, an acrylic resin, also preferably may be used a mixture of polyurethane and curing agent. Through this, the preferred mechanical strength can be ensured for a list of volume holograms for installation according to the present invention during the production of paper to avoid fakes, maps, etc. in terms of heat.

When priming agent is presented in the form of a layer in the film of the substrate treated with a priming agent, the thickness of the layer preferably is 1 μm or less.

4. The combination of a layer of a volume hologram, the substrate and the bonding tool

List of volume holograms for embedding on this is the overarching invention is not specifically limited, provided that by combining the above-mentioned layer of the volume hologram, the substrate and the bonding means it has a predetermined film thickness and resistance to peeling of a layer of a volume hologram and substrate of 25 g/25 mm or more. In the present invention, as a combination of a layer of a volume hologram substrate and adhesive means preferably can be used in the following combination.

As a combination of a layer of a volume hologram, the substrate and the bonding means preferred is a combination where the main component of the resinous material used in the layer of the volume hologram is an acrylic resin, the substrate is made of polyester resin and adhesive means is an adhesive layer, and bonding layer uses a thermosetting adhesive connection. In addition, among the combinations is preferred that the main component of the resinous material is based on polymethyl methacrylate resinous material, the substrate is made based on the polyethylene terephthalate resin and the bonding layer is used as the adhesive compound containing solvent thermosetting adhesive connection. By creating a combination of a layer of a volume hologram, p is Daiki and the bonding layer in the form of the above combinations list of volume holograms for embedding, having preferred mechanical strength can be provided during manufacture of the paper to avoid fakes, maps, etc. in terms of heat.

5. Other elements

List of volume holograms for installation of the present invention is not specifically limited provided that the layer of the volume hologram and the substrate are placed using the above-mentioned bonding tool, and thus, a desired item can be added as an option. As such element can be represented, for example, hot-melt layer placed on the outer layer sheet of a volume hologram according to the present invention.

In addition, if necessary, the list of volume holograms for installation of the present invention may be provided with other layers such as protective layer, colored layer, printed magnetic layer emitting fluorescent layer comprising emitting ultraviolet rays of the light emitting layer and infrared light layer, the optically modifiable ink, called layer OVI (optically modifiable ink) and/or resin and/or a printed layer, a primer layer between layers of the layered configuration (except for the layer between the layer of the volume hologram and the substrate and/or surface. In particular, effective assetmanagement colored layer on the surface, opposite the surface in contact with the substrate layer, the volume hologram.

In addition, if necessary, the list of volume holograms for installation of the present invention may be provided with a layer of protection from ultraviolet rays in an optional position on the side closer to the substrate relative to the layer volume hologram.

Next will be described hot-melt layer, colored layer and a layer of protection from UV rays.

(1) hot-Melt layer

In the present invention, hot-melt layer can be placed on the outer layer sheet of a volume hologram.

Here, the hot-melt layer is a thermosensitive adhesive compound that melts or softens at a predetermined temperature. For example, in the case when the list of volume holograms for installation according to the present invention is a sheet of a volume hologram for the thread, hot-melt layer is a thermosensitive adhesive compound that melts or softens at a temperature in the drying zone of the paper machine, used during the production of paper to prevent forgeries, etc. using the list of volume holograms for the thread. In addition, for example, in the case when the list of volume holograms for embedding according to the present invention is a sheet volume hologram card hot-melt layer is a thermosensitive adhesive compound that melts or softens at a temperature in the process layup under pressure heat press.

As a hot-melt layer can be used a known heat-sensitive adhesive materials based on such compounds, as ionomer resin, polyester resin, polyvinyl acetate resin, polyvinyl chloride resin, polyacrylate resin, copolymer resin of ethylene-vinyl acetate and resins based on polyvinyl alcohol. The amount of coating is usually from 0.1 g/m2up to 10 g/m2(equivalent dry weight). Hot-melt layer may, if necessary, to include preventing blocking agent, lubricant, coloring agent and emitting fluorescent agent, comprising emitting the rays of ultraviolet light agent and emitting infrared light agent. In addition, the hot-melt layer may contain absorbing ultraviolet rays of the agent. When the hot-melt layer contains absorbing ultraviolet rays of the agent, and he is on the side of the substrate, it also serves as a layer of protection from UV rays, which will be described later.

With regard to the location of the hot-melt layer, the hot-melt layer can be placed on the outer layer l is a hundred dimensional holograms. For example, it can be placed on the side of the layer of the volume hologram sheet volume hologram, it can be placed on the side of the substrate sheet dimensional holograms or it can be placed there.

(2) Colored layer

In the present invention, for example, as shown in Fig. 3, the colored layer 5 can be placed on the surface on the opposite side of the substrate 2 layer 1 dimensional holograms.

Unlike holograms with surface topography, as in volumetric hologram is not required reflecting layer of inorganic compounds metal, such as aluminum, it is good design can be obtained by applying a colored layer as the background of the hologram. In accordance with the hologram surface relief requiring reflective layer of aluminum, silver color aluminum is observed at any angle at the same time, when the hologram relief observed in rainbow colors from any angle. On the other hand, in the case of overlapping, for example, the red colored layer on the layer of the volume hologram in the recording green volume hologram, a unique view of the red colored layer is observed at any angle, and the green image of the hologram can be observed at the same time only in a particular direction of view.

In addition, in the case of the code sheet vol is th hologram to be embedded of the present invention is a volume hologram for the thread changing the design can be extended, for example, by the fact that the colored layer has a main color yarn and colour matching colored layer and the color applied to the surface after application to the paper. For example, can be represented by a blue colored layer, and printing on the surface of store coupon may be color based on blue or cool color of the same hue. In addition, in the case of a store coupon, it can vary by changing the color of the thread in accordance with its value. In the case of treatment with the receipt of the booklet it can be different for each page by changing the color of the thread.

Similarly, when the list of volume holograms for embedding the present invention represents a list of volume holograms for cards, change of design can be enhanced through the fact that the color of the colored layer is a primary color maps, and colour matching colored layer and the color applied to the surface of the card. For example, can be represented by a blue colored layer, and printing on the surface of the card can be performed by color, based on a blue or cool color of the same hue.

In addition, the colored layer may be provided on the entire surface of the substrate, or in the form of images. In case the hen colored layer is presented in the form of images, can be obtained following a unique look. For example, in the case of overlapping colored layer of the blue picture or letter pattern on the layer of volume holograms recorded with green volume hologram, the image of the blue color can be observed from any angle. However, the green volume chart can only be observed at a specific angle, in a state of superposition on the painted blue image. In this case, the image of a volume hologram may have a positional relationship of the image of the painted layer.

The colored layer can be any layer that is provided in a known manner print and resistant to the application stage (the stage of paper production) or step of embedding in the media card.

(3) a Layer of protection from UV rays

In the present invention a layer of protection against UV rays can be placed on the side surface of the substrate layer of the volume hologram. Layer protection from ultraviolet rays is provided to prevent deterioration of the color and image of the hologram layer and painted over time, caused by exposure to sunlight or to the light source for a long period of time.

With regard to the location layer protection from ultraviolet rays, then a layer of protection from UV rays m which can be placed on the side surface of the substrate layer of the volume hologram. In the case where the substrate may contain absorbing ultraviolet rays of the agent, it can also serve as a layer of protection from UV rays. When the bonding agent is a bonding layer, the bonding layer may contain absorbing ultraviolet rays of the agent, which will also serve as a layer of protection from UV rays. In addition, when a layer of protection from ultraviolet rays is provided regardless of the substrate or adhesive layer, as shown in Fig. 3, layer 6 protection from ultraviolet rays may be provided on the surface side of the substrate 2 opposite to the layer 1 dimensional holograms; as shown in Fig. 4, layer 6 protection from ultraviolet rays may be provided between layer 1 volume hologram and the substrate 2; or, although not shown in the figure, the layer of protection from UV rays could also be provided on the surface side of the substrate opposite the layer of a volume hologram, and between the layer of the volume hologram and the substrate.

Also in the case when a layer of protection from UV rays presents between the layer of the volume hologram and the substrate must have a sufficient adhesive force of the layer volume hologram and the substrate, and thus, resistance to exfoliation of the layer volume hologram and is oblozhki must be 25 g/25 mm or more. That is, the resistance to peeling of a layer of a volume hologram layer and protection from UV rays is 25 g/25 mm or more, and the resistance to peeling layer protection from ultraviolet rays and the substrate is 25 g/25 mm or more.

As for the ability to protect against UV radiation required for sheet volume hologram according to the present invention, the total absorption of all layers on the side of the substrate a layer of a volume hologram, including the substrate, is preferably 0.5 or more at a wavelength of 340 nm, and particularly preferably 0.7 or more. If the absorption of all the layers on the side of a layer of a volume hologram, including the substrate, is low, and that exposure to sunlight or the light source for a long period of time the color and image of the hologram and the colored layer can strongly deteriorate.

The total absorption of all layers on the side of the substrate a layer of a volume hologram, including a substrate, can be measured as follows. First layer of the volume hologram is removed from the list of volume holograms. Then measure the absorption of the light beam with a wavelength of 340 nm, falling in the direction of film thickness on the film containing the substrate remaining in a given time. Pohlad the of A is a value that calculated as A=-log (I/I) with the assumption that the intensity of the incident light is equal to I, and the intensity of the light transmitted through the film is equal to I'. Absorption can be measured using, for example, microscopic spectrophotometer MSV-350™ near-field IR spectrum for ultraviolet and visible region of the spectrum, produced by JASCO Corporation, or spectrophotometer UV-3100PC™ near-field IR spectrum for ultraviolet and visible region of the spectrum, produced by Shimadzu Corporation.

Layer of protection from UV rays contains at least absorbing ultraviolet rays of the agent.

As the absorbing ultraviolet rays of the agent can be represented, for example, organic absorbing ultraviolet rays of the agent and inorganic absorbing ultraviolet rays of the agent. More specifically, as examples of the organic ultraviolet absorbing agents can be represented by absorbing ultraviolet rays agents based on salicylate, benzophenone, benzotriazole, benzoate, substituted Acrylonitrile, Nickel chelates, blocked based on amines have had salicylic acids, hydrochinone and triazine. In addition, as the inorganic ultraviolet absorbing agents can be widely used, in particular, fine particles of oxides is of yellow, such as titanium oxide, zinc oxide, cerium oxide, etc.

In addition, absorbing ultraviolet rays, the agent can be an absorbing ultraviolet rays absorbing resin with ultraviolet rays by a group associated with the side chain. As absorbing ultraviolet rays group can be represented groups, having the structure of organic ultraviolet absorbing agents, and inorganic ultraviolet absorbing agents.

In particular, as the absorbing ultraviolet agent, preferably, can be used for absorbing ultraviolet rays absorbing resin with ultraviolet rays by a group associated with the side chain. Since this absorbing ultraviolet rays, the resin is fixed in the resin absorbing ultraviolet rays component, absorbing ultraviolet rays, the agent will not be wrapped in a layer of the volume hologram. Through this it is possible to prevent, for example, discoloration of the hologram caused by the contact layer protection from ultraviolet rays and a layer of the volume hologram. In addition, fixed, absorbing ultraviolet rays component will not leak and reduce the ability of absorption of ultraviolet rays.

Examples of such absorbing ultraviolet rays Smolevichy the copolymer of methyl methacrylate and benzophenone-containing absorbing ultraviolet rays of the agent (UVA635L™, produced by BASF Corp.) and a copolymer of methyl methacrylate and benzotriazol-containing absorbing ultraviolet rays of the agent (Vanaresin UVA-73A™, produced by Shin-Nakamura Chemical Co., Ltd., PUVA50M-40TM™manufactured by Otsuka Chemical Co., Ltd. and NCI-700™, NCI-900™, produced by Nikko Kaken Co., Ltd.). However, such resins are not limited to the above.

In addition, in order to obtain such a layer of protection from UV rays, which includes absorbing ultraviolet rays absorbing resin with ultraviolet rays by a group associated with the side chain, layer of protection against UV rays can be formed by preparing the material for protection against ultraviolet rays for forming layer protection from ultraviolet rays compositions containing absorbing ultraviolet rays of the monomer, the monomer or oligomer and a polymer polymerized from absorbing ultraviolet rays by the monomer and the polymerization initiator to conduct polymerization after application. At the same time as the material for protection from UV rays is a curable material, as described above, the bonding layer may also serve as a layer of protection from UV rays.

As the absorbing ultraviolet rays of the monomer can be represented, for example, benzophenone-containing, absorbing in trafilerie rays monomers, having polymerized unsaturated bond, and benzotriazol-containing, absorbing ultraviolet rays of the monomers have polymerized unsaturated bond. As the benzophenone-containing absorbing ultraviolet rays of the monomer having a curable unsaturated bond may be represented, for example, 2-hydroxy-4-(methacrylate ethoxy) benzophenone, 2-hydroxy-4-acryloyloxy benzophenone, 2-hydroxy-4-metacrilate benzophenone, 2-hydroxy-4-(2-acryloyloxy) ethoxy benzophenone and 2-hydroxy-4-(2-methacrylate) ethoxy benzophenone. As benzotriazol-containing absorbing ultraviolet rays of the monomer having a curable unsaturated bond may be represented, for example, (2-[2'-hydroxy-5'-(methacrylate) ethylphenyl]-2H-benzotriazole, 2-[2'-hydroxy-5'-(acryloyloxy)phenyl]benzotriazole, 2- [2'-hydroxy-5'-(methacrylate) phenyl] benzotriazole and 2- [2'-hydroxy-3'-tert-butyl-5'-(methacrylate)phenyl] benzotriazole, 2-[2'-hydroxy-5-methyl-3-vinyl phenyl] benzotriazole, but is not limited to the above.

As a monomer or oligomer and a polymer polymerized from absorbing UV rays of the monomer can be represented by acrylic acid and its ester, methacrylic acid and its ester, acrylamide, methacrylamide, vinyl acetate, vinylsulfonic acid and its salt, Metallistov Ki the lot and its salt, styrelseledamot acid and its salt, as well as copolymers specified.

In addition, a layer of protection from UV rays can, optionally, contain a binder resin. As the binder resin can be represented, for example, acrylic resins such as polymethacrylic acid, polymethacrylate, polymethylmethacrylate, polimetilmetakrilat and polymethylacrylate; vinyl resins such as polyvinyl acetate, copolymer of vinyl chloride and vinyl acetate, polyvinyl alcohol and polyvinyl butyral; a mixture of one or more types of cellulose derivatives, such as ethylcellulose, nitrocellulose and cellulose acetic acid, polyester resin, polymethacrylate resins, polyvinylchloride resins and silicone resins, ionizing radiation-curable resins, reactive ultraviolet ray, electron beam and the like, thermosetting resins and thermoplastic resins.

6. List of volume holograms for embedding

List of volume holograms for installation according to the present invention can be preferably applied to the paper media or embedded in the card, provided that the resistance to peeling of a layer of a volume hologram and the substrate is 25 g/25 mm or more.

Because the list of volume holograms for installation of the present invention is used when drawing on paper is the first media, or if embedded in the map, the film thickness of a sheet of a volume hologram to be embedded of the present invention is not specifically limited provided that it can be printed on a paper medium or a built-in map, but it is preferably in the range from 10 μm to 70 μm, and especially preferably, it is in the range from 20 μm to 50 μm. In the case where the thickness of the sheet dimensional holograms to embed exceeds the above range, it is difficult to provide an even film thickness when applied to paper or embedded in the map. List of volume holograms for embedding with a film thickness of sheet dimensional holograms that do not satisfy the above range, can hardly be generated.

The form of a list of volume holograms for embedding is not specifically limited provided that it is a form that can be applied to paper or embed into the map by applying the necessary process, so it can be selected optionally according to the application. More specifically, when the list of volume holograms for embedding is a list of volume holograms for the thread form of the list of volume holograms for a thread can be represented by a slip sheet and form a long sheet, rolled into a roll. In addition, when ListObject holograms to embed is placed in the list of volume hologram card leaf shape volume hologram card may be in the form of sheet or to be extended.

Paper to prevent fakes

Paper to prevent counterfeiting of the present invention is use of the above-mentioned item "A. list of volume holograms for embedding".

In accordance with the present invention, because it uses a list of volume holograms for embedding, the paper having a high degree prevent fakes, can be provided without problems during production.

Paper to prevent counterfeiting of the present invention typically includes a list of volume holograms and paper media. Here, since the paper media may be the same as used in plain paper to avoid fakes, its description is not given.

In addition, since the method of production of the paper to prevent counterfeiting of the present invention may also be the same as the conventional method for the production of paper to avoid fakes, its description is not given.

As applications of paper to prevent counterfeiting of the present invention can be represented, for example, securities.

C. Map

Card of the present invention differs in that the list of volume holograms for striven what I shown above as "A. list of volume holograms for embedding", is placed between the two sheets.

Card of the present invention will be described with reference to the drawings.

In each of figs. 5A-5C presents a schematic diagram showing an implementation option card according to the present invention. Fig. 5A is a top view seen from the upper sheet 12b, Fig. 5B is a cross section taken along the line A-A in Fig. 5A, and Fig. 5C is a cross section taken along the line B-B in Fig. 5 (a). As shown in Fig. 5A-5C, the card 20 has a four-layer sheet comprising an upper layer 12a, the core layer 11a, the core layer 11b and the upper layer 12b. Page 10 volume holograms for embedding placed between the core layer 11b and the upper layer 12b in the lower right corner of the card 20. Layer 1 volume hologram sheet 10 volume holograms for embedding contains a holographic image. That is, the letters "ABCD", located in the same row, and form stars represent the holographic image. In addition, the letters, such as card holder name and card number printed on the side surface side of the upper layer 12a medullary layer 11a and form a layer 13 printing. Furthermore, the magnetic recording layer 14 is embedded in the surface of the upper layer 12b along breadlines of the card 20.

Since the card of the present invention contains the above list of volume holograms for embedding, the map having a high degree of prevention of counterfeiting can be provided without problems with bubbles and offset during production. In addition, in accordance with the present invention, since the list of volume holograms to be embedded is embedded inside the card, the layer of the volume hologram is very difficult to separate from the card, so the effect of preventing forgery can be improved even more.

Card of the present invention may contain a list of volume holograms to be embedded between the two layers, so that other configurations were the same as in normal maps. As a card according to the present invention may be represented, for example, a map shown in Fig. 5A-5C, with the sheet 10 volume holograms for embedding placed between the core layer 11b and the upper layer 12b. An implementation option, shown in Fig. 5A-5C in the form of a four-layer sheet having a top layer 12a, the core layer 11a, the core layer 11b and the upper layer 12b that is justified on such grounds as are available thickness of the sheet and the printing process, such that the core layer may be the only, if circumstances permit. In addition, it is not always necessary for the rite front and rear sides of the two upper layers, therefore, the upper layer on one side can be excluded.

Below will be described the configuration of the card according to the present invention, which does not include the list of volume holograms for installation.

1. The core layer

The core layer used in the present invention are typically made from sheet plastic. The core layer usually includes white opaque plastic sheet, but not limited to the above. As the plastic sheet constituting the core layer, can be used, for example, a sheet that uses polyesters such materials as polyvinyl chloride, polyvinyl alcohol, polysulfone, and polyethylene terephthalate, and plastics, such as polyarylate, polycarbonate, polyamide, polyimide, cellulose diacetate, cellulose triacetate, polystyrene, acrylic, polypropylene, polyethylene and polyolefin vinyl alcohol. When the required thermal stability, can also be used an amorphous polyester sheet of the resin blends of amorphous polyester and polycarbonate.

In addition, in the case where the core layer is opaque, can also be used, for example, a foil of metal such as aluminum and copper, paper, resin or paper, impregnated with latex. They can be used individually or in the form of a composite sheet of many neobyazatel the x types. In addition, can also be used a composite sheet of these sheets and the plastic sheet.

2. The top layer

The top layer used in the present invention, generally includes a sheet of plastic. The top layer typically includes a colorless transparent sheet of plastic, but is not limited to the above. However, regardless of whether it is colored or colorless, the top layer, preferably, is transparent.

The plastic sheet forming the top layer may be the same as the plastic sheet constituting the core layer.

3. Information

In the present invention, information such as letters, such as card holder name and card number and pictures, can be printed with the formation of the layer of printing. Alternatively, information can be applied by embossing.

As shown in Fig. 5A, the layer 13 of the print can be formed on the surface side of the upper layer 12a medullary layer 11a; although it is not shown in the figure, it can be formed on the surface side of the upper layer 12b core layer 11b on the surface of the core layer 11a, 11b of the upper layer 12a, 12b, or on the surface opposite the core layer 11a, 11b of the upper layer 12a, 12b.

4. The magnetic recording layer

In the case when the card p. the present invention is a magnetic card, may be formed of the magnetic recording layer. The magnetic recording layer may be the same as the conventional magnetic recording layer in the map.

5. Card

The thickness of the card according to the present invention varies depending on the materials of the core layer and the upper layer, but is usually from about 10 μm to about 5 mm In the case of a magnetic card in order to map corresponded to the ISO standard thickness card must be 0,76 mm in Addition, in the case of an ordinary card, for example, commonly used map with four-layer configuration (total thickness is 0.76 mm), prepared by using as the core layer 280 μm sheet of opaque polyvinyl chloride (PVC) and an upper layer, a transparent sheet of polyvinyl chloride (PVC) with a thickness of 100 μm to overlay two core layers with the top layer, deposited on both sides of them, after which they are thermally pressed for the formation of the multilayer material.

Card of the present invention may have different sizes. Card of the present invention may have a flat the size of a normal Bank card or credit card. More specifically, its size is about 54 mm×86 mm in the longitudinal and transverse directions.

Method of manufacturing a card according to the present invention may be a method of saving is of sheet dimensional holograms to be embedded between two sheets in the same way, as in the usual method of production cards. For example, a map can be obtained by applying the upper layer sheet dimensional holograms for embedding and the core layer, the application of stamping when pre-determined conditions of temperature and pressure for pressing and joining and cutting card in advance of a certain size.

As applications of the card according to the present invention can be represented, for example, the card ID (identification), payment card for institutions such as Bank, credit card and identity document (student ID or employee ID). In addition, if it is not the style of the map, it can be used for various certificates, such as the entrance ticket to the exam and passport for ID, driver's license, a certificate in the form of cards; specifically, the certificates representing the qualification and the degree of safety and health, for example, for fire safety, disinfection, fire safety.

The present invention is not limited presents options for implementation. Options for implementation are examples, and all having essentially the same configuration technological ideas, as specified in the formula of the present invention, to achieve the same effects, is included in the technological scope this izopet the tion.

Examples

Below is a further description of the present invention, with specific reference to examples and comparative examples.

[Example 1]

First multilayer material (form film/layer of the volume hologram/form for the shooting of the film) was produced by applying a material for recording volume holograms (material layer volume holograms), prepared with the following composition with engraved coat in order to obtain a 10 μm thick dry film on the PET film (produced by Toray Industries, Inc. LUMIRROR (registered trademark) T-60, thickness 50 μm) (form for the shooting of the film) and spend layering PET film (produced by Tohcello Co. Ltd., "SP-PET™, thickness of 50 μm on the coated surface. The configuration of the multilayer material of the substrate/layer of the volume hologram/form for the shooting of the film was provided by recording holograms of Lippman on the first multilayer material using a laser beam with a wavelength of 514 nm, heating to 100°C for 10 minutes, remove one side of the form for the shooting of the film and the process of layering using simple gluing PET film (produced by Toyobo Co., Ltd., A4100™, thickness 50 μm) as a substrate at its rear side at 80°C.

<a Material for recording volume holograms >

• Acrylic resin, aderasa the epoxy-group: Blemmer-CP-50M™ (produced NOF Corporation) (average molecular weight by weight of 10000, epoxy equivalent of 310 g/EQ.): 17 mass parts

• Polyvinyl acetate: Denka Saknohol SN-08H™ (produced Called Denki Kogyo Kabushiki Kaisha) (degree of polymerization of 800): 17 mass parts

• 1,6-hexandioldiacrylate ether (Denacol EX-212™; manufactured Nagase Chemtex corporation): 25 mass parts

• Defunctionalization (BPEFA™; manufactured Osaka Gas Chemicals Co., Ltd.): 35 mass parts

• Derilova idaniela salt (PI2074™; manufactured Rhodia): 4 mass parts

• 2,5-bis(4-diethylamine benzylidene) Cyclopentanone: 1 mass part

• Methyl isobutyl ketone: 100 mass parts

• Butanol: 100 mass parts

List of volume hologram was obtained by applying the process of fixing the hologram to the obtained multi-layer configuration with an amount of irradiation of 2500 MJ/cm2using mercury lamps high pressure and with removal of forms for the shooting of the film. The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 30 g/25 mm

Resistance to flaking and relative resistance to delamination in the following examples and comparative examples was measured on the basis of a 180-degree test exfoliation JIS Z0237. More specifically, it is the resistance to delamination between the film substrate and the layer of the volume hologram, as measured at the point of attachment on otoli is consistent SUS-substrate sheet of a volume hologram, cut to a width of 25 mm and length 150 mm with double-sided adhesive tape attached on the side of the substrate, and peeling the film substrate in the conditions of a tensile speed of 300 mm/minute in a state in which the operation of exfoliation is carried out continuously. As a tester strain was used to install for testing materials type Instron 5565™.

[Example 2]

Adhesive layer was provided by recording holograms of Lippman on the first multilayer material of example 1 using a laser beam with a wavelength of 514 nm, heating to 100°C for 10 minutes, the application process committed holograms with the help of the amount of irradiation of 2500 MJ/cm2using mercury lamps high pressure, with the temporary removal of one side of the form to shoot film and use having a thickness of 3 μm aliphatic ester-containing polyurethane adhesive compounds, having the following composition is applied to a remote surface as a solvent-based thermosetting adhesive layer.

<a bonding Material layer>

• Polyol as one component (produced Mitsui Chemicals, Inc. Takerakku (registered trademark) A-505): 30 mass parts

• Isocyanate component (produced Mitsui Chemicals, Inc. Takenate (registered trademark) A-20): 2 mass parts

• the Solvent (ethyl acetate): 70 mass parts

By covering the surface of the substrate was deposited PET film (Toray Industries, Inc. LUMIRROR (registered trademark) T-60 thickness 25 μm) at ordinary temperature for aging at 40°C for 3 days. After that, another form of film has been removed in order to obtain the list of volume holograms. The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 1.4 kgf/25 mm

[Example 3]

List of volume hologram was obtained in the same manner as in example 1, except that obtained by the simple process of bonding the PET film (produced Toyobo Co., Ltd., T4100™, thickness 16 μm) was used instead of the substrate of example 1. The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 25 g/25 mm

[Example 4]

List of volume hologram was obtained in the same manner as in example 1, except that obtained by the simple process of bonding the PET film (produced Unitika Limited., Emblet (registered trademark) PTM-12, thickness 12 μm) was used instead of the substrate of example 1. The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 57 g/25 mm

[Example 5]

List of volume hologram was obtained in the same manner as in example 1, the drop is observed in the PET film (Teijin DuPont Films Japan Limited, Teijin (registered trademark) Tetoron (registered trademark) film HPE-16, thickness 16 μm) with the process simple gluing applied during production of the film was used instead of the substrate of example 1. The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 154 g/25 mm

[Example 6]

Instead of the substrate of example 1 was used PET substrate treated with a priming agent. Layer processing priming agent was obtained by applying a material having the following composition, as acrylic resinous material as a priming agent on the treated by corona discharge surface obtained by corona discharge of a PET film (produced Toyobo Co., Ltd., E5102™, thickness 16 μm), engraving by coating to obtain a dry film thickness of 1 μm.

<Material priming agent>

• Polymethyl methacrylate (average molecular weight by weight of 100000): 97 mass parts

• Solvent methylethyl ketone/toluene/ethyl acetate=2/1/1 (mass ratio) ): 60 mass parts

List of volume hologram was obtained in the same manner as in example 1, using as substrate obtained laminate film of PET/layer processing GRU is tobochnik agent. The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 27 g/25 mm

[Comparative example 1]

List of volume hologram was obtained in the same manner as in example 1 except that a PET film (Toray Industries, Inc. LUMIRROR (registered trademark) T-60, thickness 25 μm)obtained without applying process is simple gluing, was used as the substrate of example 1 instead of the film with the applied process is simple gluing. The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 20 g/25 mm

[Comparative example 2]

Instead of the adhesive layer of example 2, a material having the following composition, was applied on untreated PET film (Teijin DuPont Films Japan Limited, Teijin (registered trademark) Tetoron (registered trademark) film G2-16, thickness 16 μm) as a thermoplastic material by engraving coating to obtain a dry film thickness of 4 μm.

<a bonding Material layer>

• Polyester resin (Vylonal MD1985™, is made by Toyobo Co., Ltd.): 100 mass parts

• Solvent (water/isopropyl alcohol=1/1 (mass ratio)): 100 mass parts

After the process of fixing of holograms, as in example 2, using the as a substrate obtained laminated material, PET film/adhesive layer, one side forms for the film has been removed, so layering was carried out at 120°C on a remote surface with a bonding layer bonded to a layer of a volume hologram, in order to obtain the configuration of layers of the substrate/layer of the volume hologram/shape for the film. After this was removed the second form for the film to get a list of volume holograms. The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 22 g/25 mm

[Rating]

The leaves of a volume hologram obtained in examples 1-6 and comparative examples 1 and 2 were subjected to slit processing with a width of 2 mm, and their length was stretched to 150% at 100°C. During stretching was used universal tester type Instron 5565™. In examples 1-6 image holograms were not affected. This list of volume holograms with strength against tension during heating can be preferably used for the filament intended for inclusion in the paper. On the other hand, in comparative examples 1 and 2 was obtained peeling in the list of volume holograms and, thus, the mechanical strength against the tensile stresses and the shear stress in terms of heating the sheet volume hologram was insufficient.

[Example 7]

On the layer volume hologram multilayer substrate material (PE-16)/layer of a volume hologram, obtained as described in example 5, were applied by means of a device for coating corrugated roller ink for a colored layer having the following composition to obtain a film thickness of 2 μm after drying.

<composition of the coloring resin>

• Vinyl chloride-vinyl acetate resin (Solbin C™, is made by Nisshin Chemical Industry Co., Ltd.): 100 weight parts

• Contains chinagreen red pigment: 80 weight parts

• Solvent methylethyl ketone/toluene (weight ratio 1/1): 100 weight parts

Since red colored layer, the red colored layer is observed under all angles during the observation-side substrate. In the range of angles at which you can see the holographic image of a volume hologram, there is a green holographic image, while the red colored layer is used as the background. In addition, the resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 154 g/25 mm

[Example 8]

On the layer volume hologram multilayer substrate material (PTM-12)/layer volume hologram obtained in the same manner as in example 4, were applied ink for a colored layer having the following composition, using a 5 mm square pattern at regular intervals p of the tool printer rolls of silk, to a film thickness of 0.5 μm after drying.

<composition of the coloring resin>

• Containing blue pigment, based on the polyester resin (JET-E1 440 blue™: made Seiko Advance Ltd.): 100 weight parts

• Isocyanate curing agent (D curing agent™: made Seiko Advance Ltd.): 5 weight parts

• Solvent (T977™: made Seiko Advance Ltd.): 30 weight parts

Because the blue colored layer provided in the form of a template, blue color of the colored layer is observed under all angles during the observation-side substrate. In the range of angles at which you can see the holographic image of a volume hologram, there is a green holographic image, the blue color of the colored layer is used as the background. In addition, the resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 57 g/25 mm in Addition, as was used isocyanate curing agent was improved thermostability of the painted layer.

[Example 9]

The cards were made using sheets of a volume hologram of examples 3-5 and comparative example 2.

Were cut sheets of a volume hologram with a size of 10 mm×15 mm As shown in Fig. 6, as the core layers 11a, 11b were prepared two pieces of a thickness of 0.28 mm white PVC smo is s for placing the sheet volumetric hologram 10 on one side surface of the first core layer 11a, so he was in contact with him on the side surface of the layer 1 dimensional holograms. Then as the upper layers 12a, 12b was prepared two pieces of a thickness of 0.1 mm transparent vinyl chloride resin for blending all the sheets in the order shown in Fig. 6. That is, the overlay was conducted in the following order: a transparent upper layer 12b, white core layer 11b, white core layer 11a with the hosted page 10 volume hologram (they were located so that the side surface of the sheet 10 volume hologram in contact with the white medullary layer 11b) and a transparent top layer 12a. All of superimposed sheets were pressed with heating to 150°C, pressure transfer was 25 kg/cm2and the time of pressure application was 15 minutes. They then re-stamped to a pre-determined size of the map.

For maps using sheets of a volume hologram of examples 3-5 dimensional images of the hologram are not violated. On the other hand, in the case of using the sheet dimensional holograms of comparative example 2, the three-dimensional hologram was distorted. The distortion was caused by the bubbles between the PET film and the layer of the volume hologram sheet volume hologram, and a shift in the PET film and a layer of a volume hologram on the face of leaf of a volume hologram.

[Example 0]

Material for protection from UV rays, prepared in accordance with the following composition, was applied in the process of simply gluing PET film (Unitika Ltd., Emblet (registered trademark) PTM-12, thickness 12 μm)to obtain a dry film thickness of 1 μm by means of engraving coverage.

<a Material for protection from UV rays>

• Copolymer resin with absorbing ultraviolet rays by a group associated with the side chain (produced by BASF Corp., UVA-635L™): 100 weight parts

• Solvent methylethyl ketone/toluene=1/1 (weight ratio)): 200 weight parts

Then received a list of volume hologram by applying a layer of a volume hologram in the same manner as in example 1, by covering the surface of a material to protect from UV rays.

The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 48 g/25 mm

In addition, the layer of the volume hologram has been removed from the list of volume holograms for measuring absorption at a wavelength of 340 nm using a spectrophotometer UV-3100PC™ near-field IR spectrum for ultraviolet and visible region of the spectrum, produced by Shimadzu Corporation, and it was found that the absorption is 1.3.

[Example 11]

Material for protection from the ultraviolet ray is th, prepared according to the following composition, was applied in the process of simply gluing PET film (Teijin DuPont Films Japan Limited, Teijin (registered trademark) Tetoron (registered trademark) film HPE-16, thickness 16 μm) to obtain the dry film thickness of 2 μm by means of engraving coverage.

<a Material for protection from UV rays>

• Urethaneacrylate (The Nippon Synthetic Chemical Industry Co., Ltd. Shikoh (registered trademark) UV-7630B: 36 weight parts

• Absorbing ultraviolet rays of the monomer (2-[2'-hydroxy-5' -(methacrylate) ethylphenyl]-2H-benzotriazole (product name "RUVA-93™", is made by Otsuka Chemical Co., Ltd.): 4 weight parts

• Initiator (Irgacure 184™, is made by Ciba Specialty Chemicals K.K.): 1 weight part

• Phosphine oxide initiator (2,4,6-trimethylbenzaldehyde) ("Lucirin TPO™", manufactured by BASF Corp.): of 0.3 weight parts

• Solvent methylethyl ketone/toluene=1/1 (weight ratio)): 100 mass parts

Next, the list of volume hologram was obtained by applying a layer of a volume hologram on the covering surface of the material to protect from ultraviolet rays in the same manner as in example 1. During the commit process of the hologram with the use of mercury lamps high pressure layer protection from ultraviolet rays, made from a material on which I protection from UV rays, also been cured with the use of mercury lamps high pressure.

The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 144 g/25 mm

The layer of the volume hologram has been removed from the list of volume holograms for measuring absorption at a wavelength of 340 nm, and it was found that the absorption is 0.8.

[Example 12]

The bonding layer serves as a layer of protection from UV rays, was formed on untreated PET film (Toray Industries, Inc. LUMIRROR (registered trademark) T-60, thickness 25 μm) by applying a composition having the following composition to obtain a dry film thickness of 2 μm by means of engraving coverage.

<a Material for the adhesive layer also serves as a layer of protection from UV rays>

• The main agent for two-component acrylic adhesive mixed type: the solutions of the resin of a copolymer of acrylate (produced Soken Chemical & Engineering Co., Ltd., product name: SK-Dyne 2 094™) (solid component of the resin 25%): 8 weight parts

• Hardening agent component acrylic adhesive mixed type: multifunctional epoxy crosslinking agent (produced Soken Chemical & Engineering Co., Ltd., product name: E-5XM™) (solid lump is ANENT 5%): a 0.02 weight part

• Absorbing ultraviolet rays of the monomer (2-[2'-hydroxy-5' -(methacrylate) ethylphenyl]-2H-benzotriazole (product name "RUVA-93™", is made by Otsuka Chemical Co., Ltd.): 4 weight parts

• UV urethaneacrylate oligomer (produced by The Nippon Synthetic Chemical Industry Co., Ltd., Shikoh (registered trademark) UV-3520T): 30 weight parts

• Initiator (Irgacure 184™, is made by Ciba Specialty Chemicals K.K.): 1 weight part

• Phosphine oxide initiator (2,4,6-trimethylbenzaldehyde) ("Lucirin TPO™", manufactured by BASF Corp.): of 0.3 weight parts

• Solvent methylethyl ketone/toluene=1/1 (weight ratio)): 100 mass parts

Then the list of volume hologram was obtained by applying a layer of a volume hologram for covering the surface of the composition in the same manner as in example 1. During the process of fixing of holograms using mercury lamps, high pressure bonding layer serves as a layer of protection from UV rays, were also subjected to curing with the use of mercury lamps high pressure.

The resistance to peeling of the substrate and a layer of a volume hologram sheet volume hologram was 42 g/25 mm

The layer of the volume hologram has been removed from the list of volume holograms for measuring absorption at a wavelength of 340 nm, and it was found that the absorption of 0.9.

[Rating]

The leaves of a volume hologram obtained in examples 9-11 were subjected to slit processing with a width of 2 mm, and their length was stretched to 150% at 100°C. In this case, the holographic image is also not violated. In addition, after the 100-hour test of resistance to light using a Suntest XLS+™, manufactured by Atlas Corp., deterioration of image holograms were observed.

The reference list of items

1 layer of the volume hologram

2, the substrate

3 bonding layer

5 colored layer

6 layer of protection from UV rays

10 list of volume holograms for embedding

11a, 11b core sheet

12a, 12b of the upper sheet

A simple process of bonding

1. List of volume holograms for installation, including:
the layer of the volume hologram; and
the substrate is placed on only one side of the surface layer of the volume hologram using a bonding tool,
in this case, resistance to exfoliation of the layer volume hologram and the substrate is 25 g/25 mm or more.

2. List of volume holograms for installation according to claim 1, characterized in that the main component of resinous material used in the layer of the volume hologram, is the material of acrylic resin, and the substrate is made of polyester resin.

3. List of volume holograms for installation according to claim 1 is 2, characterized in that the means bonding is a bonding layer, and an adhesive compound used in the adhesive layer is a thermosetting adhesive connection.

4. List of volume holograms for installation according to claim 1 or 2, characterized in that the bonding tool is a simple bonding process, and a simple bonding process is a chemical process using a priming agent.

5. List of volume holograms for installation according to claim 1 or 2, characterized in that list of volume holograms for embedding is a list of volume holograms for the thread.

6. List of volume holograms for installation according to claim 1 or 2, characterized in that list of volume holograms for embedding is a list of volume holograms for the map.

7. Paper to prevent counterfeiting, characterized in that it uses a list of volume holograms for installation according to any one of paragraphs. 1-4.

8. Card, characterized in that list of volume holograms for installation according to any one of paragraphs. 1-4 is placed between the two sheets.



 

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