JP2002029154A - Transfer foil, method for making image recording body, method for making transfer foil, and individual certification card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer foil with excellent scratch strength, tape releasability, water resistance and forgery proofness. SOLUTION: In the transfer foil prepared by successively laminating a release layer, a transparent resin layer, an intermediate layer and an adhesive layer on a substrate, the transfer foil is characterized in that the release layer is formed of a resin layer containing a thermoplatic elastomer with a tensile elongation of at least 100%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a contact-type or non-contact type electronic or magnetic card or sheet for storing personal information or the like for which security (security) such as forgery and alteration prevention is required. The present invention relates to an image recording medium, a transfer foil, a method for manufacturing an image recording medium, and a method for manufacturing a transfer foil.

[0002]

2. Description of the Related Art In recent years, in the service industries such as banks, companies, schools, and government offices, contact or non-contact electronic or magnetic cards are often issued. Cash cards, employee cards, employee cards, membership cards, student cards, alien registration cards, and various licenses used in these fields are recorded with personal information and cannot be easily forged or altered. Has been security-treated.

For example, a hologram layer is provided on a card substrate, and a special image is formed so that a face photograph, a name, an issue date, and the like are not easily imitated. This image is formed as a diffraction grating image or an image generally called a hologram image, and this hologram image is formed by interference fringes obtained by superimposing a reference wave with a wave reflected from or transmitted through an object. is there. Some hologram images reproduce the image of the object three-dimensionally. The hologram layer is covered with a sheet-like protective sheet having good light transmittance. The protective sheet is made of a transparent resin such as a laminate, and is protected so as to cover the hologram layer which is weaker than the card substrate.

However, the conventional method, for example, disclosed in
No. 0-863, Patent Nos. 2609871 and 262680
No. 1, Japanese Patent Application Laid-Open No. H8-224982, Patent No. 2832478
No., Japanese Patent Publication No. 7-45279, Patent No. 2807798,
According to the manufacturing method of cards such as Japanese Patent No. 2524810 and Japanese Patent Publication No. 6-98849, the mechanical strength is weak because it is a single-layer resin sheet. Often there was a scratch on the top that made it impossible to identify himself. Japanese Patent Application No. 11-184270, in which transfer was performed twice to improve mechanical strength,
In JP-A 1-268457 and the like, the correlation adhesion between the second transfer foil and the first transfer foil is weak and the adhesion is deteriorated, so that mechanical strength, water resistance, and adhesion between foils are deteriorated. Was.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the water resistance and adhesion even with a single layer, and to exhibit an effect by laminating a resin layer or a transfer foil on the monolayer. In addition, the present invention provides an image recording medium, a transfer foil, a method for producing an image recording medium, and a method for producing a transfer foil, which can enhance safety (security) such as prevention of falsification and improve mechanical strength, water resistance and chemical resistance as compared with the conventional method. Is to do.

[0006]

The above objects of the present invention have been attained by the following constitutions.

[0007] 1. In a transfer foil in which a release layer, a transparent resin layer, an intermediate layer, and an adhesive layer are sequentially laminated on a support, the release layer is formed of a resin layer containing a thermoplastic elastomer having a tensile elongation of 100% or more. Transfer foil, characterized in that:

[0008] 2. Release layer, optical change element layer on support,
A transfer foil, in which an intermediate layer and an adhesive layer are sequentially laminated, wherein the release layer is formed of a resin layer containing a thermoplastic elastomer having a tensile elongation of 100% or more.

3. In a transfer foil in which a release layer, a resin layer, an optical change element layer, an intermediate layer, and an adhesive layer are sequentially laminated on a support, the release layer contains a thermoplastic elastomer having a tensile elongation of 100% or more. A transfer foil characterized by being formed of:

[0010] 4. 4. The transfer foil according to claim 1, wherein at least one layer of the transfer foil is an actinic ray-curable layer.

5. The release layer of the transfer foil according to any one of 1 to 4, wherein the release layer is a resin layer containing at least one thermoplastic elastomer selected from styrene, olefin, polyester, and urethane. Transfer foil.

6. 4. The transfer foil according to claim 1, wherein the release layer of the transfer foil is a resin layer containing a styrene-based thermoplastic elastomer.

7. 4. The transfer foil according to any one of 1 to 3, wherein the release layer of the transfer foil is a resin layer containing a thermoplastic elastomer composed of a block polymer of polystyrene and polyolefin.

8. After forming a release layer with a resin layer containing at least a thermoplastic resin, after applying an actinic ray curable layer, forming a cured layer by exposure to actinic light, forming a cured layer, and then sequentially laminating an adhesive layer. Transfer foil manufacturing method.

9. After forming a release layer with a resin layer containing at least a thermoplastic resin, after applying an actinic ray curable layer, exposing with an actinic ray to form a cured layer, and then sequentially laminating an optical change element layer, an intermediate layer, and an adhesive layer A method for producing a transfer foil.

10. A method for producing an image recording body, comprising thermally transferring the transfer foil according to any one of the above items 1 to 7.

11. 8. A method for manufacturing an image recording body, comprising thermally transferring the transfer foil according to any one of the above items 1 to 7 at least twice or more.

[12] 8. A method for producing an image recording body, comprising: providing an active cured layer after thermally transferring the transfer foil according to any one of the above items 1 to 7.

13. 8. A method for manufacturing an image recording body, comprising: providing an active cured layer after thermally transferring the transfer foil according to any one of the above items 1 to 7;

[14] 14. An image recording medium manufactured by the manufacturing method according to any one of 10 to 13.

15. 14. A personal authentication card, wherein personal information such as a face image, an address, a name, and a date of birth is described as personal information on the image recording medium according to the above item 14.

Hereinafter, the present invention will be described in more detail. Thermoplastic elastomers have properties similar to vulcanized rubber at room temperature and are elastic, and have the same properties at room temperature as ordinary thermoplastic resins. A thermoplastic elastomer generally has both components of a soft segment (soft phase) having elasticity in a molecule and a hard segment (hard phase) for preventing plastic deformation.

Specific examples of the thermoplastic elastomer include styrene (styrene block copolymer (SBC)), olefin (TP), urethane (TPU), polyester (TPEE), polyamide (TPAE),
2-polybutadiene-based, vinyl chloride-based (TPVC), fluorine-based, ionomer resin, chlorinated polyethylene, silicone-based, and the like.
No. 6 chemical products "(Chemical Industry Daily).

In the present invention, the tensile elongation is 10%.
0% or more of a thermoplastic elastomer is preferable, more preferably 300 to 1200%, and still more preferably 300 to 1200%.
1000%. 100% or less, when used for the release layer of the transfer foil because the adhesion to the support is reduced,
The peeling mass becomes light, resulting in poor transfer. On the other hand, if the tensile elongation rate is high, the adhesion to the support becomes high, and when used for the release layer of the transfer foil, the peeling weight becomes heavy, resulting in poor transfer and no transfer.

The measurement of the tensile elongation is based on JIS K62.
It is measured at 51 etc. The thermoplastic elastomer having a tensile elongation of 100% or more is preferably a styrene-based, olefin-based, polyester-based, or urethane-based, and particularly preferably a styrene-based.

The thermoplastic elastomer preferably used in the present invention and comprising a block polymer of polystyrene and polyolefin and having a tensile elongation of 100% or more comprises a block of styrene and a linear or branched saturated alkyl having 10 or less carbon atoms. Refers to thermoplastic resin. In particular, styrene-butadiene-styrene (SBS) and styrene-isoprene-styrene (SI) which are block polymers having a polystyrene phase and a hydrogenated polyolefin phase
S), styrene-ethylene / butylene-styrene (SE
BS), styrene-ethylene / propylene-styrene (SEPS), styrene-ethylene / propylene (SEPS)
P) block polymer and the like.

Specific examples include Shell Chemical Co., Ltd., Kariflex TR Clayton D and G series, Asahi Kasei Corporation, Tuftec H and M series, Kuraray, Septon series.

The addition amount of the thermoplastic elastomer used in the release layer of the present invention is preferably from 1 to 100% by mass, more preferably from 1 to 80% by mass.

The coating weight of the release layer containing the thermoplastic elastomer of the present invention on the transfer foil is preferably 0.0001 to 2 g / m ^2, more preferably 0.0001 to 1 g / m ² . If the applied amount is higher than 1 g / m ² , the secondary transferability is deteriorated. On the other hand, if it is less than 0.0001 g / m ² , the secondary transferability is deteriorated.

The release layer of the present invention is preferably provided with an additive if necessary. Resins such as acrylic resin, polyvinyl acetal resin and polyvinyl butyral resin having a high glass transition temperature, waxes, silicone oil , Fluorine compounds, water-soluble polyvinylpyrrolidone resin, polyvinyl alcohol resin, Si-modified polyvinyl alcohol, methylcellulose resin, hydroxycellulose resin, silicone resin, paraffin wax, acryl-modified silicone, polyethylene wax, and resins such as ethylene vinyl acetate. In addition, polydimethylsiloxane and its modified products such as polyester-modified silicone, acrylic-modified silicone, urethane-modified silicone, alkyd-modified silicone, amino-modified silicone, and epoxy-modified silicone Corn oil and resins such as polyether-modified silicone or a cured product, and the like. Other fluorine-based compounds include fluorinated olefins and perfluorophosphate-based compounds.
Preferred olefinic compounds include polyethylene,
Dispersions such as polypropylene, and long-chain alkyl compounds such as polyethyleneimine octadecyl are exemplified. These compounds having poor solubility can be used after being dispersed. Also, it is possible to add to other polymers similarly to the silicone compound. Other inorganic fine particles such as silica particles, titanium oxide, and boron nitride (micron or submicron order), and organic fine particles such as melamine resin, guanamine resin, and styrene-
Particles of acrylic resin, silicone resin, fluorine resin, polymethyl methacrylate, high molecular weight polyethylene and the like are also effective.

The transparent resin layer or the resin layer of the present invention comprises an ethylene vinyl acetate resin, an ethyne ethyl acrylate resin, an ethylene acrylate resin, an ionomer resin, a polybutadiene resin, an acrylic resin, a polystyrene resin, a polyester resin, an olefin resin, a urethane resin, Tackifier (for example, phenolic resin, rosin resin, terpene resin,
Petroleum resin, etc.), and may be a copolymer or a mixture thereof, and the thickness is preferably 0.1 to 10 μm.

In the present invention, it is preferable to have an actinic ray-curable resin layer, and the actinic ray-curable resin layer of the present invention is made of a material having addition polymerizability or ring-opening polymerizability. The compound is a radical polymerizable compound, for example, JP-A-7-159983, JP-B-7-3
1399, JP-A-8-224982, JP-A-10-8
63, and a photocurable material using a photopolymerizable (including thermopolymerizable) composition described in each of the publications such as Japanese Patent Application No. 11-184270. The addition polymerizable compound,
Photocurable materials of cationic polymerization type are known, and recently photocurable photocurable materials of photocationic polymerization type sensitized to a longer wavelength region than visible light are also disclosed in, for example, JP-A-6-43633 and JP-A-8-324137. It is published in gazettes and the like. Either one may be used for the purpose of the present invention. If necessary, sensitizers, polymerization accelerators, chain transfer catalysts, polymerization inhibitors,
You may add an antistatic agent, a silicon type additive, etc.

As the actinic ray, any ray that generates an electromagnetic wave active with respect to the polymerization initiator can be used.
For example, a laser, a light emitting diode, a xenon flash lamp, a halogen lamp, a carbon arc lamp, a metal halide lamp, a tungsten lamp, a mercury lamp, an electrodeless light source, and the like can be given. Preferably, a light source such as a xenon lamp, a halogen lamp, a carbon arc lamp, a metal halide lamp, a tungsten lamp, a mercury lamp, etc., is used, and the energy applied at this time adjusts the exposure distance, time, and intensity according to the type of the polymerization initiator. By doing so, it can be selected and used as appropriate. The actinic rays are
In some cases, the polymerization rate may be increased by shutting off air by a method such as nitrogen substitution or reduced pressure.

When a laser is used as a light source, the exposure area can be easily reduced to a very small size, and a high-resolution image can be formed. As a laser light source, any of an argon laser, a He—Ne gas laser, a YAG laser, and a semiconductor laser can be suitably used.

When photo-curing is carried out using actinic rays, means for stabilizing photo-curing in a nitrogen stream under reduced pressure may be used. Means to which heat energy can be applied in addition to actinic rays can be used by appropriately selecting an oven, a heat roll, a hot stamp, a thermal head, a laser beam, an infrared flash, a hot pen, or the like.

The optical change element (Optical) of the present invention
What is Variable Device (OVD)? 1)
It is a two-dimensional CG image of a diffraction grating such as a kinegram, which is characterized by the point that an image composed of line images moves and changes freely such as movement, rotation, expansion, and reduction. 2) Pixellg
3) OSD (Optical Security)
such as a color change from gold to green 4) LEAD (Long Lasting)
Economical Anticopy Devi
ce), which shows an image that changes, 5) stripe type OVD, 6) metal foil, etc., as described in Journal of the Printing Society of Japan (1998), Vol. 35, No. 6, P482-P496. Security may be maintained by using a suitable paper material, a special printing technique, a special ink, or the like. In the present invention, a hologram is particularly preferred.

The hologram used in the present invention includes a laser reproduction hologram such as a relief hologram, a Fresnel hologram, a Fraunhofer hologram, a lensless Fourier transform hologram, an image hologram, a white reproduction hologram such as a Lippmann hologram and a rainbow hologram, a color hologram, and a computer hologram. , Hologram display, multiflex hologram,
A hologram flex stereogram, a holographic diffraction grating, or the like can be arbitrarily adopted.

The optical change element layer can be formed, for example, by bonding a hologram sheet on the image receiving layer. As the hologram sheet, a relief type hologram sheet can be used. The relief hologram sheet is formed by laminating a hologram forming layer and a hologram effect layer on a support film in this order. More specifically, the hologram sheet is a resin layer that is solid at room temperature and has a thermoforming property, for example, a thermoplastic resin that is solid at room temperature, on the surface of a support film such as a polyethylene terephthalate film. A line-curable resin layer (hologram forming layer) is formed, and a hologram master having a hologram interference pattern formed in an uneven shape on this surface is pressed and compressed, and the uneven shape is transferred to the resin surface and cured. Further, the hologram effect of a thin film made of a material (for example, a deposited film of TiO ₂ , SiO ₂ , ZnS) having sufficient transparency and large reflectivity at a certain angle on the surface of the uneven shape and having a different refractive index from the hologram forming layer. It can be obtained by forming a layer. A hologram in which an image is reproduced by white light such as daylight or illumination light has excellent decorativeness because a hologram image is observed even in a normal state. On the other hand, a type in which an image is reproduced by a laser beam is excellent in falsification discoverability.

Further, a bead holding layer can be used as another layer which changes the refractive index.

As the bead holding layer, a part of the incident light is given a phase difference, recombined, and the light component in a specific wavelength region is enhanced by interference to enhance the colored light having a color tone different from that of the incident light. It has a reflective substrate that is returned in the traveling direction and transparent beads aligned on the substrate.

The bead holding layer having beads is formed by providing a resin layer on a reflective substrate and further arranging a large number of beads made of glass or the like having a diameter of 5 to 80 μm on the surface thereof. Incident light that has entered from the outside travels into the beads, and at least part of the light is reflected by the reflective substrate from the transparent beads via the resin layer, returns to the beads again, and travels outward. Since the surface projecting outward from the bead is spherical, even if there is a slight change in the incident angle, the same effect occurs, and the reflected light can be returned in the incident direction.

For the optical change element layer, a pigment having high iris reflectivity, such as fine particles having a metal oxide, may be used, or may be used in combination with the hologram sheet.

Examples of the pigment having high iris reflectivity include a pearl pigment in which mica is coated with a transparent metal oxide having a high refractive index. PbO, ZnS, Fe
₂ O ₃ , Sb ₂ S ₃ , ZnSe, CdS, Bi ₂ O ₃ , TiO
_{3, SiO, ZnO, CdO,} Sb 2 O 3, Nd 2 O 3, T
It can be obtained by a single layer coating such as a ₂ O ₅ or a multilayer coating. Since the refractive index ratio between mica and metal oxide is large, a high iris reflection effect can be obtained, and the particles have a flaky shape to increase the reflectance and promote birefringence to achieve a high high iris reflection effect. Obtainable. For example, a pearl pigment can be mixed with a resin to form an optically variable element layer, a pattern can be formed by ink, or a hologram sheet can be laminated.

If necessary, a thermosetting resin layer may be used between the release layer of the present invention and the resin layer, the actinic ray curable layer or the optical change element layer. Specifically, polyester resin, acrylic resin, epoxy resin, xylene resin,
Examples include guanamine resin, diallyl phthalate resin, phenol resin, polyimide resin, maleic acid resin, melamine resin, urea resin, polyamide resin, urethane resin and the like.

Examples of the support include polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene terephthalate / isophthalate copolymer, polyolefin resins such as polyethylene, polypropylene, and polymethylpentene; polyvinyl fluoride; polyvinylidene fluoride; Polyfluoroethylene resins such as tetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, polyamides such as nylon 6, nylon 6.6, polyvinyl chloride, vinyl chloride / vinyl acetate copolymer, ethylene / vinyl acetate Copolymers, ethylene / vinyl alcohol copolymers, polyvinyl alcohols, vinyl polymers such as vinylon, cellulose resins such as cellulose triacetate and cellophane, polymethyl methacrylate, polyethyl methacrylate, Acrylic resin such as ethyl acrylate, polybutyl acrylate, etc., synthetic resin sheet such as polystyrene, polycarbonate, polyarylate, polyimide, etc., or paper such as high quality paper, thin paper, glassine paper, parchment paper, etc. Alternatively, a laminate of two or more of these layers may be used. The thickness of the support of the present invention is 10 to 200 μm.
m, preferably 15 to 80 μm. When the thickness is less than 10 μm, the support is broken during transfer, which is a problem. In the specific release layer of the present invention, polyethylene terephthalate is preferred.

The support of the present invention can have irregularities if necessary. Examples of the means for forming unevenness include kneading a matting agent, sandblasting, hairline processing, matte coating, and chemical etching. In the case of a mat coating, any of an organic substance and an inorganic substance may be used. For example, as inorganic substances, Swiss Patent No. 3
Silica described in No. 30,158, French Patent No. 1,29
No. 6,995, etc., British Patent No. 1,17
Alkaline earth metals or carbonates such as cadmium and zinc described in 3,181 and the like can be used as a matting agent. As organic substances, US Pat. No. 2,322,03
7, starch derivatives described in Belgian Patent No. 625,451 and British Patent No. 981,198, polyvinyl alcohol described in Japanese Patent Publication No. 44-3643, and Swiss Patent No. 330,158. Polystyrene or polymethacrylate described in U.S. Pat.
Organic matting agents such as polyacrylonitrile described in No. 079,257 and polycarbonate described in U.S. Pat. No. 3,022,169 can be used. The method of applying the matting agent may be a method in which the matting agent is dispersed in a coating liquid in advance, or a method in which the matting agent is sprayed after the coating liquid is applied and before the drying is completed. When a plurality of types of matting agents are added, both methods may be used in combination. In the case of performing the concavo-convex processing in the present invention, it can be performed on at least one of the transfer surface and the back surface.

As the adhesive layer of the transfer foil, ethylene vinyl acetate resin, ethyne ethyl acrylate resin, ethylene acrylate resin, ionomer resin,
Polybutadiene resin, acrylic resin, polystyrene resin, polyester resin, olefin resin, urethane resin, tackifier (for example, phenol resin, rosin resin,
(Terpene resin, petroleum resin, etc.), and a copolymer or a mixture thereof, and the thickness is preferably 0.1 to 10 μm.

More specifically, examples of the urethane-modified ethylene ethyl acrylate copolymer include Hitec S-6254, S-6254B and S-312 manufactured by Toho Chemical Industry Co., Ltd.
9 are commercially available, and as polyacrylic acid ester copolymers, Jurima AT-210, AT
-510, AT-613, plus size L-201, SR-102, SR-103, J manufactured by Ryogo Chemical Industry Co., Ltd.
-4 and the like are commercially available. The mass ratio of the urethane-modified ethylene ethyl acrylate copolymer to the polyacrylate copolymer is preferably from 9: 1 to 2: 8, and the thickness of the adhesive layer is preferably from 0.1 to 1.0 μm.

The intermediate layer of the transfer foil is preferably composed of one or more intermediate layers, and in some cases, it may be interposed as a primer layer or a barrier layer to further improve the adhesion between the layers. As a specific compound, a thermoplastic resin composed of a block polymer of polystyrene and polyolefin, polyvinyl butyral, and the like are preferable. Examples of the polyvinyl butyral resin having a degree of polymerization of 1000 or more in the intermediate layer of the present invention include Slek BH-3, BX-1, BX-2, BX-5, and BX manufactured by Sekisui Chemical Co., Ltd.
-55, BH-S, Denka Butyral # 4000-2, # 5000-A, # 6000-, manufactured by Denki Kagaku Kogyo KK
EP and the like are commercially available. The thermosetting resin of the polybutyral in the intermediate layer is not limited to the degree of polymerization before the thermosetting, and may be a resin having a low degree of polymerization, and an isocyanate curing agent or an epoxy curing agent may be used for the thermosetting. Is 5
Preferred is 0 to 90 ° C for 1 to 24 hours. The thickness of the intermediate layer is preferably from 0.1 to 1.0 μm.

Next, the personal authentication card of the present invention will be described. The support of the personal identification card is
Paper, paper such as polypropylene, polystyrene or synthetic paper in which they are bonded to paper, transparent or white polyethylene terephthalate base film, polyethylene terephthalate base film, plastic film such as vinyl chloride base film, various metals and ceramics Films and the like may be mentioned, and IC memory, optical memory, magnetic memory and the like may be incorporated in the substrate, and may be a single layer or a composite film of the above films. Substrate thickness is 100
〜1000 μm, preferably 200-700 μm. A writing layer may be provided on the back side.

The image recording layer of the present invention will be described.
The image element of the present invention includes an authentication identification image such as a face image, an attribute information image, an image on an information carrying layer provided with at least one selected from format printing or a printing surface side, and a protective layer using a thermal transfer sheet. It is formed.

As a method of forming an authentication identification image represented by a face image, a silver halide photographic method, a fusion heat transfer recording method, an ink jet method, and a sublimation type thermal transfer recording method, which are advantageous for forming a gradation image, are mentioned. The latter has become common as represented by driver's licenses. Attribute information is name,
The address, date of birth, qualification, etc., and attribute information are usually recorded as character information, and a fusion-type thermal transfer recording method is generally used. The format printing is performed on the substrate or the image receiving layer used in the sublimation type thermal recording system by a printing method such as resin letterpress printing, lithographic printing, and silk printing. The picture layer is selected as appropriate from printed materials, holograms, barcodes, matte patterns, fine prints, copy-forgery-inhibited patterns, uneven patterns, etc., visible light absorbing color material, ultraviolet light absorbing material, infrared light absorbing material, fluorescent brightening material, metal deposition layer , A glass deposition layer and the like. The function as the intermediate layer is such that a light-curing resin layer and a thermosetting resin layer are added as a cushion function for absorbing irregularities of the transferred object and a resin curing function for the purpose of protecting the transferred picture layer.

The transfer of the transfer foil to the material to be transferred is usually performed by means such as a thermal head, a heat roller, a hot stamping machine or the like which can apply pressure while heating.

The image-receiving layer of the present invention, which is a layer having identification information or bibliographic information, is preferably capable of forming an identification information image using at least a sublimable dye or the like on its surface. The configuration is not particularly limited as long as it can receive a sublimable dye diffused by heating from the ink layer in the sublimation type thermal transfer ink sheet, and is basically formed of a binder and various additives as necessary. Is done. The thickness of the image receiving layer is generally about 1 to 50 μm, preferably about 2 to 20 μm.

As the binder for the image receiving layer, various resins such as a vinyl chloride resin, a polyester resin, a polycarbonate resin, an acrylic resin and a polyvinyl acetal resin can be used. Preferred are polyvinyl acetal resins such as polyvinyl acetoacetal resin, polyvinyl butyral resin and polyvinyl formal resin, and vinyl chloride resins such as polyvinyl chloride resin and vinyl chloride copolymer. other,
A polyester resin can also be suitably used as an image receiving layer for sublimation type thermal transfer.

In the image receiving layer, a releasing agent, an antioxidant, an ultraviolet absorber, a light stabilizer, a filler and a pigment may be added as additives. Further, a plasticizer, a heat solvent or the like may be added as a sensitizer. Examples of such a release agent include silicone oils (including those referred to as silicone resins); solid waxes such as polyethylene wax, polypropylene wax, amide wax, and Teflon (registered trademark) powder; And silicone oil is preferred.

As the antioxidant, JP-A-59-182
No. 785, No. 60-130735, JP-A-1-127
The antioxidants described in Japanese Patent No. 387 and the like, and compounds known to improve the image durability of photographs and other surface image recording materials can be mentioned.

As UV absorbers and light stabilizers, JP-A-59-158287, JP-A-63-74686 and JP-A-63-145089 are known as those which improve the image durability of photographs and other image recording materials. Can be mentioned.

As the filler, inorganic fine particles such as silica gel, calcium carbonate, titanium oxide, acid clay, activated clay, alumina and the like, fluororesin particles, guanamine resin particles,
Organic resin particles such as acrylic resin particles and silicon resin particles can be exemplified.

Typical examples of the pigment include titanium white, calcium carbonate, zinc oxide, barium sulfate, silica, talc, clay, kaolin, activated clay, and acid clay.

In addition, a release layer containing a release agent may be further laminated on the surface of the image receiving layer in order to more effectively prevent fusion between the image receiving layer and the ink layer of the ink sheet for thermal transfer recording. The thickness of the release layer is usually 0.03 to
2.0 μm. Further, a cushion layer or a barrier layer may be provided between the ID card support and the image receiving layer. In addition, JP-A-7-117367, 8-324
117, 8-282196, 9-44065 and the like can also be used, but are not limited thereto.

The sublimation image forming method uses a sublimation type thermal transfer recording ink sheet. The sublimation type thermal transfer recording ink sheet can be composed of a support and a sublimable dye-containing ink layer formed thereon.

This support has good dimensional stability,
There is no particular limitation as long as it can withstand the heat during recording with the thermal head, and a conventionally known one can be used.

The sublimable dye-containing ink layer basically contains a sublimable dye and a binder. Sublimable dyes include cyan dyes, magenta dyes and yellow dyes. As the cyan dye, JP-A-59
JP-78896, JP-A-59-227948, JP-A-60-24966, JP-A-60-53563,
JP-A-60-130735, JP-A-60-131292, JP-A-60-239289, and JP-A-61-1939
No. 6, No. 61-22993, No. 61-312
Nos. 92, 61-31467, 61-35
No. 994, No. 61-49893, No. 61-1
48269, 62-191191, 6
Examples thereof include naphthoquinone dyes, anthraquinone dyes, and azomethine dyes described in JP-A-3-91288, JP-A-63-91287, and JP-A-63-290793.

The magenta dye is described in JP-A-59-78.
Nos. 896, 60-30392, 60-3
0394, 60-253595 and 61
-262190, 63-5992, 6
JP-A 3-205288, JP-A 64-159, JP-A-6-159
Examples thereof include anthraquinone-based dyes, azo dyes, and azomethine-based dyes described in each publication such as 4-63194. Examples of the yellow dye include JP-A-59-788.
No. 96, No. 60-27594, No. 60-31
No. 560, No. 60-53565, No. 61-1
Examples thereof include methine dyes, azo dyes, quinophthalone dyes and anthrisothiazole dyes described in JP-A Nos. 2394 and 63-122594.

Particularly preferred as a sublimable dye is a compound having an open-chain or closed-type active methylene group, which is an oxidized p-phenylenediamine derivative or p-phenylenediamine derivative.
Azomethine dyes obtained by a coupling reaction with an oxidized form of an aminophenol derivative and indoaniline obtained by a coupling reaction with an oxidized form of a phenol or naphthol derivative or a p-phenylenediamine derivative or an oxidized form of a p-aminophenol derivative It is a pigment.

When a metal ion-containing compound is blended in the image receiving layer, a sublimable dye that reacts with the metal ion-containing compound to form a chelate is included in the sublimable dye-containing ink layer. Is good. Such chelate-forming sublimable dyes include, for example,
Cyan dyes, magenta dyes and yellow dyes capable of forming at least bidentate chelates described in JP-A-78893 and JP-A-59-109349 can be exemplified. A preferred sublimable dye capable of forming a chelate can be represented by the following general formula.

X ₁ -N = N-X ₂ -G wherein X ₁ is an aromatic carbocyclic or heterocyclic ring in which at least one ring is composed of 5 to 7 atoms. And at least one of the adjacent carbon atoms bonded to the azo bond is a nitrogen atom or a carbon atom substituted with a chelating group. X ₂
Represents an aromatic heterocyclic ring or an aromatic carbocyclic ring in which at least one ring is composed of 5 to 7 atoms. G represents a chelating group.

Regarding any sublimable dye, the sublimable dye contained in the sublimable dye-containing ink layer may be any of a yellow dye, a magenta dye, and a cyan dye if the image to be formed is a single color. Depending on the color tone of the image to be formed, two or more of the three dyes or other sublimable dyes may be included. The amount of the sublimable dye to be used is generally 0.1 to ²⁰ g, preferably 0.2 to 5 g, per m ^{2 of} the support. The binder of the ink layer is not particularly limited, and a conventionally known binder can be used. Further, conventionally known various additives can be appropriately added to the ink layer. Sublimation type thermal transfer recording ink sheet is prepared by dispersing or dissolving the various components forming the ink layer in a solvent to prepare an ink layer forming coating liquid, applying this on the surface of the support, It can be manufactured by drying. The thickness of the ink layer thus formed is usually
0.2 to 10 μm, preferably 0.3 to 3 μm
It is.

A method for forming a protective layer by transfer from a transfer foil according to the present invention will be described. The transfer surface of the transfer foil is superimposed on the card surface having the above image on the surface, and is pressed from the transfer foil side by means of pressurizing while heating such as a thermal head, a heat roller, a hot stamping machine, and then the transfer foil support is pressed. A protective layer is formed by peeling. In the present invention, as a method for forming the protective layer, JP-A-8-324137, JP-A-4-247486, JP-A-4-286696, JP-A-4-3209898, and JP-A-5-32098.
-139093, JP-A-6-72018 and the like can be used to form or form a protective layer.

The image recording body manufacturing apparatus according to the present invention is shown in FIG.
2 and 3. FIG. 1 is a schematic configuration diagram of an image recording body manufacturing apparatus. In FIG. 1, in the image recording medium manufacturing apparatus 1, a personal authentication card supply unit 10 and an information recording unit 20 are arranged at an upper position, and a protection applying unit and / or an optical change element applying unit 40 are disposed at a lower position. The layer providing section and / or the actinic ray irradiating section 90 are arranged to produce a card as an image recording body, but a sheet can also be produced.

In the personal authentication card supply unit 10, a plurality of personal authentication cards 50, which have been cut in a sheet shape in advance for writing personal information of the card user, are stocked with the face for recording the face photograph facing upward. Have been. Personal authentication card 5
0 is automatically supplied one by one from the personal authentication card supply unit 10 at a predetermined timing.

In the information recording section 20, a yellow ribbon cassette 21, a magenta ribbon cassette 22, a cyan ribbon cassette 23, and a black ribbon cassette 24 are arranged, and recording heads 25 to 28 are arranged corresponding to them. By thermal transfer using a thermal transfer sheet such as a yellow ribbon, a magenta ribbon, and a cyan ribbon, while the personal authentication card 50 is being moved, an image area having a gradation such as a photograph of the face of the card user is formed in a predetermined area of the information carrying layer. Be recorded. Further, a character ribbon cassette 31 and a recording head 32 are arranged, and authentication identification information such as a name and a card issuance date is recorded by thermal transfer using a thermal transfer sheet such as a character ribbon to form an image recording layer.

In the protection applying section and / or the optical change element applying section 40, a transfer foil cassette 41 is arranged, and a thermal transfer head 42 is arranged corresponding to the transfer foil cassette 41. The transparent protective transfer foil 64 and / or the optical change element transfer foil 43 are thermally transferred to provide a transparent protective transfer layer and / or an optical change element transfer layer.

Thereafter, the actinic ray-curable layer is applied by the actinic ray-curable layer-providing section and / or the actinic ray irradiating section 90, exposure is performed by actinic light, and the transparent protective transfer layer and / or the optically variable element transfer of the image recording medium are transferred. An actinic radiation curable layer is provided on the layer.

FIG. 2 is a schematic configuration diagram of an image recording body manufacturing apparatus. In the image recording body manufacturing apparatus 1 of this embodiment, the personal authentication card supply unit 10 and the information recording unit 20 are configured in the same manner, but a resin application unit 60 is arranged next to the information recording unit 20.

The transfer foil cassette 61 is provided in the resin application section 60.
Are arranged, and a thermal transfer head 62 is arranged corresponding to the transfer foil cassette 61. Transfer foil cassette 61
A resin transfer foil 66 is set, and the resin transfer foil 66 is transferred to provide a resin transfer layer.

FIG. 3 is a schematic configuration diagram of an image recording body manufacturing apparatus. In the image recording medium manufacturing apparatus 1 of this embodiment, the personal authentication card supply unit 10 and the information recording unit 20 are configured in the same manner, but the transparent protective layer and / or the optical change element transfer layer applying unit and / or the resin layer applying A portion 70 is disposed, and thereafter, a transparent protective layer and / or an optical change element transfer layer providing portion / or a resin layer providing portion 70 are further disposed.

In the transparent protective layer and / or the optical change element transfer layer providing section / or the resin layer providing section 70, the transfer foil cassette 7
1 is arranged, and a thermal transfer head 72 is arranged corresponding to the transfer foil cassette 71. Optical change element transfer foil 4
3 and / or the transparent protection transfer foil 64 and the resin transfer foil 66 are transferred to provide an optical change element transfer layer, a transparent protection transfer layer, and a resin transfer layer.

[0080]

EXAMPLES The present invention will be described below in detail with reference to examples, but embodiments of the present invention are not limited thereto. In the following, “parts” indicates “parts by mass”.

Synthesis Example 1 Resin using actinic ray curable layer 1 In a three-necked flask under a nitrogen stream, 73 parts of methyl methacrylate, 15 parts of styrene, 12 parts of methacrylic acid and 500 parts of ethanol, α, α'-azobisiso 3 parts of butyronitrile were added and reacted in an oil bath at 80 ° C. for 6 hours in a nitrogen stream. Thereafter, 3 parts of triethylammonium chloride and 1.0 part of glycidyl methacrylate were added and 3 parts were added.
The reaction was allowed to proceed for a period of time to obtain a desired resin 1 using an actinic ray-curable layer of an acrylic copolymer. The molecular weight is 17000 and the acid value is 3
It was 2.

Example 1 Preparation of Coated Product A Up to Release Layer A 25 μm-thick polyethylene terephthalate (Type-SG) manufactured by Teijin Limited was coated on one side with a release layer having the following formulation by wire bar coating. It was dried (amount of dry film attached: 0.1 g / m ² ) to obtain a coated product A up to the release layer.

Paraffin wax 0.5 part Ester wax 0.5 part Toluene 99 parts The support, paraffin wax and ester wax were prepared as shown in Tables 1 and 2 in the same manner as in the coated product A up to the release layer. By changing, the coated products BF up to the release layer were prepared. However, for the acrylic / melanin latex of the coated products B and F, a 1% solution of an aqueous solvent was used without using toluene. The coated product F has two release layers, the release layer 1 is coated and dried in the same manner as the coated product A, and the above-mentioned acrylic / melanin latex solution is coated thereon. The coating was dried to form a release layer 2. The coated products B and F were cured at 120 ° C. for 20 seconds after the release layer was applied.

[0084]

[Table 1]

[0085]

[Table 2]

(Transparent resin transfer foil No. 11, 14 and 1
Production of Transfer Foil No. 6 Using Coated Products A, D, and F to the Release Layer Produced as Above 11, 14, and 16
Was prepared.

<Resin Layer Coating Solution> Film thickness 0.5 μm Acrylic resin (Dianal BR-87, manufactured by Mitsubishi Rayon Co., Ltd.) 5 parts Polyvinyl acetoacetal (SP value: 9.4) (Sekisui Chemical Co., Ltd.) , KS-1) 5 parts Methyl ethyl ketone 40 parts Toluene 50 parts <Coating solution for intermediate layer> Film thickness 2 μm Styrene resin (Kuraray Co., Ltd., Septon 2006) 5 parts Polyvinyl butyral resin (Sekisui Chemical Co., Ltd., BL-S) 5 parts Toluene 90 parts <Coating solution for adhesive layer> Film thickness 2 μm Styrene resin (Asahi Kasei Corporation, Tuftec M-1953) 6 parts Alicyclic saturated hydrocarbon resin (Arakawa Chemical Co., Alcon P100) 3 0.5 parts Calcium carbonate (Okutama Industry Co., Ltd., Tamapearl TP-123) 0.5 parts Toluene 90 parts Transparent composed of a release layer, an intermediate layer and an adhesive layer having the above composition. Resin transfer foil No. 11, 14, and 16 were produced.

(Activated Light Curable Transfer Foil Nos. 21 to 26)
Preparation of transfer foil No. 1 using coated products A to F up to the release layer prepared as described above. 21 to 26 were produced.

<Coating solution for actinic ray curable layer> A film thickness of 8.0 μm actinic ray curable compound A-9300 manufactured by Shin-Nakamura Chemical Co., Ltd. EA-1020 manufactured by Shin-Nakamura Chemical Co., Ltd. 35 / 11.75 parts Reaction initiator Irgacure 184 Nippon Ciba Geigy Co., Ltd. 5 parts Resin using actinic ray curable layer 1 48 parts Dainippon Ink Surfactant F-179 0.25 part <Intermediate layer forming coating solution> Film thickness 1.0 μm Polyvinyl butyral resin [Sekisui Chemical Co., Ltd. Manufactured by Esrec BX-1] 3.5 parts Tuftex M-1913 (Asahi Kasei) 5 parts Curing agent Polyisocyanate [Coronate HX Nippon Polyurethane] 1.5 parts Methyl ethyl ketone 90 parts After application, the curing agent is cured at 50 ° C. Performed in 24 hours.

<Coating Liquid for Forming Adhesive Layer> A film thickness of 0.5 μm urethane-modified ethylene ethyl acrylate copolymer [manufactured by Toho Chemical Industry Co., Ltd .: Hitec S6254B] 8 parts polyacrylate ester copolymer [Nippon Pure Chemical Co., Ltd. Co., Ltd .: Julimer AT510] 2 parts Water 45 parts Ethanol 45 parts (Active light-curable transfer foil No. 31, 34, 35 and 3
Production of transfer foil No. 6 using coated products A, D, E and F up to the release layer produced as described above. 31, 34,
35 and 36 were produced.

<Active Light Curable Layer Coating Solution> Film thickness 8.0 μm Active light curable compound A-9300 manufactured by Shin-Nakamura Chemical Co., Ltd. EA-1020 manufactured by Shin-Nakamura Chemical Co., Ltd. 35 / 11.75 parts Reaction initiator Irgacure 184 Nippon Ciba Geigy Co., Ltd. 5 parts Resin using actinic ray curable layer 1 48 parts Dainippon Ink Surfactant F-179 0.25 part <Intermediate layer forming coating solution> Film thickness 1.0 μm Polyvinyl butyral resin [Sekisui Chemical Co., Ltd. Manufactured by Esrec BX-1] 3.5 parts Tuftex M-1913 (Asahi Kasei) 5 parts Curing agent Polyisocyanate [Coronate HX Nippon Polyurethane] 1.5 parts Methyl ethyl ketone 90 parts After application, the curing agent is cured at 50 ° C. Performed in 24 hours.

<Barrier Layer-Forming Coating Solution> Film thickness 1.0 μm Polyvinyl butyral resin (Sekisui Chemical Co., Ltd .: Esrec BX-1) 1 part Tuftex M-1913 (Asahi Kasei) 8 parts Curing agent Polyisocyanate [Coronate HX Nippon Polyurethane] 1 part Methyl ethyl ketone 90 parts <Adhesive layer forming coating liquid> Film thickness 0.5 μm Urethane-modified ethylene ethyl acrylate copolymer [Toho Chemical Industry Co., Ltd .: Hitec S6254B] 8 parts Polyacrylic acid ester Polymer [manufactured by Nippon Pure Chemical Co., Ltd .: Julimer AT510] 2 parts Water 45 parts Ethanol 45 parts (Optical change element transfer foil No. 41, 43, 44 and 45)
Preparation of Transfer Foil No. using coated products A, C, D and F up to the release layer prepared as described above. 41, 43, 4
4 and 45 were produced.

(Optical Conversion Element Layer) Hologram Image 2 μm in Thickness <Coating Liquid for Forming Intermediate Layer> Polyvinyl Butyral Resin 1.0 μm in Thickness (manufactured by Sekisui Chemical Co., Ltd .: Esrec BX-1) 3.5 parts Toughtex M -1913 (Asahi Kasei) 5 parts Curing agent Polyisocyanate [Coronate HX manufactured by Nippon Polyurethane] 1.5 parts Methyl ethyl ketone 90 parts After application, the curing agent was cured at 50 ° C for 24 hours.

<Coating Solution for Forming Adhesive Layer> A film thickness of 0.5 μm urethane-modified ethylene ethyl acrylate copolymer [manufactured by Toho Chemical Industry Co., Ltd .: Hitec S6254B] 8 parts polyacrylate ester copolymer [Nihon Junyaku Co., Ltd. Co., Ltd .: Julimer AT510] 2 parts Water 45 parts Ethanol 45 parts (Production of optical change element transfer foil Nos. 51, 54 and 56) Coated products A, D and up to the release layer produced as described above F using transfer foil No. 51, 54 and 56 were produced.

<Resin Layer Coating Solution> Film thickness 0.5 μm Acrylic resin (Dianal BR-87, manufactured by Mitsubishi Rayon Co., Ltd.) 5 parts Polyvinyl acetoacetal (SP value: 9.4) (Sekisui Chemical Co., Ltd.) , KS-1) 5 parts Methyl ethyl ketone 40 parts Toluene 50 parts (Optical conversion element layer) Film thickness 2 μm Hologram image <Intermediate layer forming coating liquid> Film thickness 1.0 μm Polyvinyl butyral resin [manufactured by Sekisui Chemical Co., Ltd .: Esrec BX -1] 3.5 parts Tuftex M-1913 (Asahi Kasei) 5 parts Curing agent Polyisocyanate [Coronate HX made by Nippon Polyurethane] 1.5 parts Methyl ethyl ketone 90 parts After application, the curing agent is cured at 50 ° C. for 24 hours. Was.

<Coating Solution for Forming Adhesive Layer> 0.5 μm-thick urethane-modified ethylene ethyl acrylate copolymer [manufactured by Toho Chemical Industry Co., Ltd .: Hitec S6254B] 8 parts polyacrylate ester copolymer [Nippon Pure Chemical Co., Ltd. Co., Ltd .: Jurimar AT510] 2 parts Water 45 parts Ethanol 45 parts (Preparation of optical change element transfer foil Nos. 61, 64 and 66) Coated products A, D and up to the release layer prepared as described above F using transfer foil No. 61, 64 and 66 were produced.

<Resin Layer Coating Solution> Film thickness 0.5 μm Acrylic resin (Dianal BR-87, manufactured by Mitsubishi Rayon Co., Ltd.) 5 parts Polyvinyl acetoacetal (SP value: 9.4) (Sekisui Chemical Co., Ltd.) , KS-1) 5 parts Methyl ethyl ketone 40 parts Toluene 50 parts <Active light curable layer coating liquid> Film thickness 8.0 μm Active light curable compound A-9300 manufactured by Shin-Nakamura Chemical Co., Ltd. EA-1020 35 manufactured by Shin-Nakamura Chemical Co. /11.75 parts Reaction initiator Irgacure 184 Nippon Ciba Geigy Co., Ltd. 5 parts Resin used for actinic ray curable layer 1 48 parts Dainippon Ink surfactant F-179 0.25 parts (optical conversion element layer) Film thickness 2 μm Hologram image < Intermediate Layer Forming Coating Solution> Thickness: 1.0 μm Polyvinyl butyral resin [manufactured by Sekisui Chemical Co., Ltd .: S-REC BX-1] 3.5 parts Toughtex M-19 3 (Asahi Kasei) curing of 5 parts of a curing agent Polyisocyanate [Coronate HX manufactured by Nippon Polyurethane Co., Ltd.] 1.5 parts Methyl ethyl ketone 90 parts after coating curing agent, 50 ° C., was carried out for 24 hours.

<Coating Liquid for Forming Adhesive Layer> A film thickness of 0.5 μm urethane-modified ethylene ethyl acrylate copolymer [manufactured by Toho Chemical Industry Co., Ltd .: Hitec S6254B] 8 parts polyacrylate ester copolymer [Nippon Pure Chemical Co., Ltd. Co., Ltd .: Julimer AT510] 2 parts Water 45 parts Ethanol 45 parts (Preparation of a card provided with face image, attribute information and format printing) (Preparation of support) 350 μm thick polyethylene terephthalate [manufactured by Teijin Limited: Tetron HS350] was provided with a white polypropylene resin (Noblen FL25HA, manufactured by Mitsubishi Yuka Co., Ltd.) so as to have a thickness of 50 μm by an extrusion lamination method. One surface of the obtained composite resin sheet was subjected to corona discharge treatment at 25 W / m ² · min, and this sheet was used as a support.

(Preparation of Image Receiving Layer for Sublimation Type Thermal Transfer Recording)
A coating liquid for forming a first image-receiving layer, a coating liquid for forming a second image-receiving layer, and a coating liquid for forming a third image-receiving layer having the following compositions are applied and dried in this order on the surface of the support subjected to the corona discharge treatment, The image receiving layers were formed by laminating the respective layers so that the thicknesses became 0.2 μm, 2.5 μm, and 0.5 μm.

<Coating Liquid for Forming First Image Receiving Layer> 9 parts of polyvinyl butyral resin [Eslec BL-1 manufactured by Sekisui Chemical Co., Ltd.] 1 part of isocyanate [Coronate HX manufactured by Nippon Polyurethane Industry Co., Ltd.] Methyl ethyl ketone 80 Part butyl acetate 10 parts <Coating liquid for forming the second image receiving layer> polyvinyl butyral resin 6 parts [manufactured by Sekisui Chemical Co., Ltd .: Esrec BX-1] metal ion-containing compound (compound MS) 4 parts methyl ethyl ketone 80 parts butyl acetate 10 copies

[0101]

Embedded image

<Coating solution for forming third image receiving layer> Polyethylene wax 2 parts [Toho Chemical Industry Co., Ltd .: Hitec E1000] Urethane-modified ethylene acrylic acid copolymer 8 parts [Toho Chemical Industry Co., Ltd .: Hitec] S6254] Methylcellulose (manufactured by Shin-Etsu Chemical Co., Ltd .: SM15) 0.1 part Water 90 parts (Preparation of writing layer) On the surface opposite to the image receiving layer on the support, Oji Yuka Co., Ltd .: Yupo DFG-65 The sheets were laminated, and a first writing layer-forming coating liquid, a second writing layer-forming coating liquid, and a third writing layer-forming coating liquid having the following compositions were applied and dried in this order, and each had a thickness of 5 μm. , 15 μm and 0.2 μm to form an image receiving layer.

<Coating liquid for forming first writing layer> 8 parts of polyester resin (manufactured by Toyobo Co., Ltd .: Byron 200) 1 part of isocyanate [manufactured by Nippon Polyurethane Industry Co., Ltd .: coronate HX] carbon black trace amount of titanium dioxide particles [Ishihara Sangyo Co., Ltd .: CR80] 1 part Methyl ethyl ketone 80 parts Butyl acetate 10 parts <Coating liquid for forming the second writing layer> Polyester resin 4 parts [Toyobo Co., Ltd .: Vironal MD1200] Silica 5 parts Titanium dioxide Particles [Ishihara Sangyo Co., Ltd .: CR80] 1 part Water 90 parts <Coating liquid for third writing layer formation> Polyamide resin [Sanwa Chemical Industry Co., Ltd .: Sunmide 55] 5 parts Methanol 95 parts obtained The center line average roughness of the writing layer was 1.34 μm.

(Format Printing) A logo and an OP varnish were sequentially printed by a resin relief printing method.

(Preparation of Ink Sheet for Sublimation-Type Thermal Transfer Recording) A coating liquid for forming a yellow ink layer and a magenta ink layer having the following composition were applied to a 6 μm-thick polyethylene terephthalate sheet which was processed to prevent fusion on the back surface. The liquid and the coating liquid for forming a cyan ink layer were provided so as to have a thickness of 1 μm, respectively, to obtain three color ink sheets of yellow, magenta and cyan.

<Yellow Ink Layer Forming Coating Solution> Yellow Dye (Compound Y-1) 3 parts Polyvinyl acetal 5.5 parts [Denka Butyral KY-24, manufactured by Denki Kagaku Kogyo KK] Polymethyl methacrylate-modified polystyrene 1 part [Toa Gosei Chemical Industry Co., Ltd .: Rededa GP-200] Urethane-modified silicone oil 0.5 part [Dainichi Seika Industry Co., Ltd .: Diaromer SP-2105] Methyl ethyl ketone 70 parts Toluene 20 parts <Magenta ink layer Coating liquid for forming> Magenta dye (Compound M-1) 2 parts Polyvinyl acetal 5.5 parts [Denka Butyral KY-24, manufactured by Denki Kagaku Kogyo Co., Ltd.] Polymethyl methacrylate-modified polystyrene 2 parts [Toa Gosei Chemical Industry Co., Ltd. Co., Ltd .: Rededa GP-200] 0.5 parts urethane modified silicone oil [ Manufactured by Dainichi Seika Kogyo Co., Ltd .: Dialomer SP-2105] Methyl ethyl ketone 70 parts Toluene 20 parts <Coating liquid for forming cyan ink layer> Cyan dye (Compound C-1) 1.5 parts Cyan dye (Compound C-2) 1.5 parts Polyvinyl acetal 5.6 parts [Denka Butyral KY-24 manufactured by Denki Kagaku Kogyo Co., Ltd.] Polymethyl methacrylate modified polystyrene 1 part [Toa Gosei Chemical Industry Co., Ltd .: Rededa GP-200] Urethane modified Silicon oil 0.5 parts [Dainichisei Chemical Co., Ltd .: Dialoma SP-2105] Methyl ethyl ketone 70 parts Toluene 20 parts

[0107]

Embedded image

(Preparation of Ink Sheet for Melt-Type Thermal Transfer Recording) A coating liquid for forming an ink layer having the following composition was applied to a 6 μm-thick polyethylene terephthalate sheet, which was processed to prevent fusion, on the back surface so as to have a thickness of 2 μm. After drying, an ink sheet was obtained.

<Coating Liquid for Forming Ink Layer> Carnauba Wax 1 part Ethylene vinyl acetate copolymer 1 part [manufactured by Du Pont-Mitsui Chemicals: EV40Y] Carbon black 3 parts Phenol resin [manufactured by Arakawa Chemical Industry Co., Ltd .: Tamanol 521] 5 parts Methyl ethyl ketone 90 parts (Formation of face image) The image receiving layer and the ink side of the ink sheet for sublimation type thermal transfer recording are overlapped with each other, and the output from the ink sheet side is 0.23 W / dot, pulse width 0. By heating under the conditions of 3 to 4.5 msec and a dot density of 16 dots / mm, a human image having gradation in the image was formed on the image receiving layer. In this image, the dye and nickel in the image receiving layer form a complex.

(Formation of Character Information) The OP varnish portion is superimposed on the ink side of the ink sheet for melt-type thermal transfer recording, and the output from the ink sheet side is 0.5 W using a thermal head.
By heating under the conditions of / dot, pulse width of 1.0 ms, and dot density of 16 dots / mm, character information was formed on the OP varnish.

As described above, a card provided with a face image, attribute information, and format printing was manufactured.

Further, the protective transfer foil shown in Tables 3 and 4 was used on the image receiving body on which images and characters were recorded, and heated to a surface temperature of 200 ° C. using the practical transfer apparatus shown in Tables 3 and 4. The transfer was performed by applying heat at a pressure of 150 kg / cm ² for 1.2 seconds using a heat roller having a diameter of 5 cm and a rubber hardness of 85.

In Tables 3 and 4, each of the transfer foils using the actual transfer apparatus shown in FIG. 1 was coated with the following ultraviolet curable resin-containing coating solution on the transferred image receiving member so that the coating amount was 20 g / m ^2. Was applied using a gravure roll coater having a ground pattern, and the ultraviolet-curable resin-containing coating liquid 1 was cured under the following curing conditions to form an ultraviolet-curable protective layer.

Curing conditions Light irradiation source 60 w / cm ² high pressure mercury lamp Irradiation distance 10 cm Irradiation mode Light scanning at 3 cm / sec (ultraviolet curable resin-containing coating liquid 1) bis (3,4-epoxy-6-methylcyclohexylmethyl) Adipate 70 parts Bisphenol A glycidyl ether 10 parts 1,4-butanediol glycidyl ether 13 parts Triarylsulfonium fluoroantimony 7 parts (Evaluation method) The obtained samples were evaluated as follows, and the results are shown in Tables 3 and 4. .

<Evaluation Method for Scratch Strength (Mechanical Strength)> A scratch resistance tester (HEIDON-18) was used.
The load was changed to 200 g and 300 g with a 1 mmφ sapphire needle, and the surface of the manufactured card or the forgery / alteration prevention card was slid. At that time, the part of the card surface where the scratch began to be measured was measured, and how many g of the card was damaged was measured.

<Evaluation of Water Resistance> The finished card was immersed in tap water at a water temperature of 25 ° C. for 3 days, and the surface of the card was observed.
The evaluation was visually performed using the following evaluation items. C: Transfer foil peeled off and protective layer lost. B: Water bubbles on card surface. B: No change from initial card.

<Evaluation of tape peeling (adhesion)> A cellophane adhesive tape (Nichiban) was strongly adhered to the surface of the cured protective layer, and the cellophane adhesive tape was rapidly peeled off from the surface. The evaluation was made according to the method specified in the 5400 Crosscut Tape Method.

On the surface of the protective layer, use a knife or other sharp blade to
Cut at an angle of 0 ° and reach 1 mm or 1.
100 grids (10 × 10) of 5 mm were made, and the number of grids of the coating film remaining without peeling at this time was measured. In the case of a coating film having good adhesiveness as a whole, after making a grid, a cellophane (registered trademark) was applied to the surface, the tape was peeled off, and the grid was peeled off in the thickness direction. The number was measured and evaluated.

The evaluation was performed according to the following evaluation score method. Evaluation score of cross cut test Evaluation score Scratch condition 10 Each cut is thin and smooth on both sides, and does not peel off at a glance at the intersection of the cuts. 8 There is slight peeling at the intersection of the cuts. The area of the missing part is less than 5% of the total square area. 6 Both sides of the cut and the intersection are separated, and the area of the defective part is less than 5 to 15% of the total square area. The width of the peel is wide, the area of the defect is less than 15 to 35% of the total square area. 2 The width of the peel due to the cut is wider than 4 points, and the area of the defect is less than 35 to 65% of the total square area. Area is 65% or more of the total square area.

<Counterfeiting and falsification> It was determined whether or not counterfeiting was easy (x) or not (o).

[0121]

[Table 3]

[0122]

[Table 4]

As is clear from Tables 3 and 4, when the transfer foil of the present invention is used, the transfer foil of the present invention is excellent in scratch strength, tape peelability and water resistance.
6), compared with the actinic ray-curable transfer foils (21 to 26) and the actinic ray-curable transfer foils (31, 34, 35, 36), the optical change element transfer foils (41, 43, 44, 45) and the optical change The element transfer foils (51, 54, 56) and the optical change element transfer foils (61, 64, 66) are excellent in forgery and falsification prevention.

[0124]

According to the present invention, a transfer foil having excellent scratch strength, tape peelability, water resistance and anti-counterfeiting and alteration prevention properties was obtained.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an image recording medium manufacturing apparatus according to the present invention.

FIG. 2 is a schematic configuration diagram of another image recording body manufacturing apparatus according to the present invention.

FIG. 3 is a schematic configuration diagram of another image recording body manufacturing apparatus according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Image recording body manufacturing apparatus 10 Personal authentication card supply part 20 Information recording part 40 Protection provision part and / or optical change element provision part 43 Optical change element transfer foil 50 Personal authentication card 60 Resin provision part 64 Transparent protection transfer foil 66 Resin transfer foil 70 Transparent protective layer and / or optically variable element transfer layer application section / or resin layer application section 90 Active light cured layer application section and / or active light irradiation section

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Nobuyuki Ishii Konica Stock Company, 1 Sakuracho, Hino-shi, Tokyo In-house (72) Inventor Hideki Takahashi 1st Konica Stock Exchange, Sakura-cho, Hino-shi, Tokyo F-term (reference) 2C005 HA01 HA10 HB01 HB03 JA01 JA11 JA15 JA26 JB02 JB08 JB09 JB11 JB12 JB13 JB14 JB19 LA11 LA19 LA20 LA27 LA30 2H111 AA07 AA52 BA07 BA53

Claims (15)

[Claims] 1. A transfer foil in which a release layer, a transparent resin layer, an intermediate layer and an adhesive layer are sequentially laminated on a support, wherein the release layer contains a thermoplastic elastomer having a tensile elongation of 100% or more. A transfer foil characterized by being formed of a layer. 2. A transfer foil in which a release layer, an optical change element layer, an intermediate layer, and an adhesive layer are sequentially laminated on a support, wherein the release layer contains a thermoplastic elastomer having a tensile elongation of 100% or more. A transfer foil formed of a resin layer. 3. A transfer foil in which a release layer, a resin layer, an optical change element layer, an intermediate layer, and an adhesive layer are sequentially laminated on a support, wherein the release layer has a thermoplastic elongation of 100% or more. A transfer foil formed of a resin layer containing an elastomer. 4. A transfer foil, wherein at least one layer of the transfer foil according to claim 1 is an actinic ray-curable layer. 5. The resin according to claim 1, wherein the release layer of the transfer foil contains at least one thermoplastic elastomer selected from styrene, olefin, polyester, and urethane. Transfer foil characterized by being a layer. 6. The transfer foil according to claim 1, wherein the release layer of the transfer foil is a resin layer containing a styrene-based thermoplastic elastomer. 7. The transfer foil according to claim 1, wherein the release layer of the transfer foil is a resin layer containing a thermoplastic elastomer comprising a block polymer of polystyrene and polyolefin. 8. After forming a release layer with a resin layer containing at least a thermoplastic resin, applying an actinic ray curable layer, exposing with an actinic ray to form a cured layer, and then sequentially laminating an intermediate layer and an adhesive layer. A method for producing a transfer foil. 9. After forming a release layer with a resin layer containing at least a thermoplastic resin, applying an actinic radiation curable layer, exposing with an actinic ray to form a cured layer, and then forming an optical change element layer, an intermediate layer, A method for producing a transfer foil, comprising sequentially laminating an adhesive layer. 10. A method for producing an image recording body, comprising thermally transferring the transfer foil according to claim 1. Description: 11. A method for producing an image recording body, comprising thermally transferring the transfer foil according to claim 1 at least twice. 12. A method for manufacturing an image recording body, comprising: providing an active cured layer after thermally transferring the transfer foil according to claim 1. 13. A method for producing an image recording body, comprising: providing an active cured layer after thermally transferring the transfer foil according to claim 1; and exposing the transfer foil to actinic light. 14. An image recording medium produced by the production method according to claim 10. Description: 15. A personal authentication card, wherein personal information such as a face image, an address, a name, and a date of birth is described as personal information on the image recording medium according to claim 14.