JP2001162955A - Heat sensitive transfer recording medium and manufacturing method of image displaying body using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat sensitive transfer recording medium, through an intermediate transferring medium of which, an arbitrary image and an antifalsification layer can be easily formed and which is excellent in an image quality and an antifalsification effect, and the manufacturing method of an image displaying body using the same. SOLUTION: This heat sensitive transfer recording medium is produced by repeatedly providing at least both layers or a coloring material layer coating part and an antifalsification layer coating part along the longitudinal direction of a support on the support under the state that the antifalsification layer coating part has a haze value of 5% or more and ordinarily shows white color or light color and emits visible rays by external impulse. The image displaying body is manufactured by utilizing the heat sensitive transfer recording medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sensitive transfer recording medium having at least a color material layer and a forgery prevention layer on one side of a support, and transferring to a surface of an intermediate transfer medium having at least a transferable image receiving layer. The present invention also relates to a thermal transfer recording medium capable of improving the anti-counterfeiting property by transferring an image receiving layer of a printed intermediate transfer medium to a target object to be transferred, and a method for manufacturing an image display using the medium.

[0002]

2. Description of the Related Art A method of using an intermediate transfer medium in thermal transfer recording is already known (for example, see
In this method, high resolution images can be obtained and printing can be performed on a non-smooth image receiver, as compared with a method of printing directly on a target image receiver. . When the image display is a form of identification such as a passport or a driver's license, various forgery prevention methods may be used together.However, a forgery prevention layer is partially provided on the intermediate transfer medium side. In this case, there is a problem that the step of the forgery prevention layer becomes a gap and affects a printed image. Also, JP-A-62-1118
As disclosed in Japanese Patent Publication No. 00-00, a colorless heat-sensitive transfer sheet that emits fluorescent light upon irradiation with ultraviolet rays is known. Matching was difficult, productivity was poor and feasibility was poor.

[0003]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention makes it possible to easily form an arbitrary image and an anti-counterfeit layer using an intermediate transfer medium, and to provide an image with excellent image quality and anti-counterfeit effect. An object of the present invention is to provide a thermal transfer recording medium and a method for manufacturing an image display using the same.

[0004]

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that at least both layers of a color material layer coating portion and a forgery prevention layer coating portion are provided on a support. It is provided repeatedly arranged in order along the longitudinal direction of the support,
The coated part of the forgery prevention layer is a thermal transfer recording medium characterized in that it has a haze value of 5% or more and usually exhibits a white or pale color, but emits visible light upon external stimulus. .

According to a second aspect of the present invention, in the thermal transfer recording medium according to the first aspect, the forgery prevention layer coating section comprises:
A phosphor, phosphor, or phosphor having an average particle diameter in the range of 1 nm to 6,000 nm, which emits light by an external stimulus such as ultraviolet light, infrared light, electron beam, X-ray, radiation, electric field, or chemical reaction. Wherein the light-emitting material is contained in a range of 0.5 to 80% by mass in terms of solid content of the composition. .

According to a third aspect of the present invention, in the thermal transfer recording medium according to the first or second aspect, the forgery prevention layer coating portion includes the forgery prevention layer containing the luminescent material and an adhesive exhibiting heat-sensitive adhesiveness. The layers are laminated on the support in this order, and peeled from the support and the anti-counterfeit layer by heating, and both the anti-counterfeit layer and the adhesive layer can be transferred imagewise to the image receiving layer side. It is characterized by.

According to a fourth aspect of the present invention, a color material is transferred from a heat-sensitive transfer recording medium based on image data onto an image receiving layer of an intermediate transfer medium having an image receiving layer formed on at least one surface of a support. In the method of manufacturing an image display body created by primary transfer and secondary transfer to transfer an intermediate transfer medium on which the image information is recorded to a transfer target,
A method for producing an image display body, comprising: transferring a forgery prevention layer that emits visible light by an external stimulus to the surface of an image receiving layer of the intermediate transfer medium, and then performing secondary transfer to an object to be transferred. .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in more detail with reference to the drawings. FIG. 1 is a sectional view showing an example of the configuration of the thermal transfer recording medium of the present invention. (A) is one in which a forgery prevention layer 2 is provided on one surface of a support 1. (B) is one in which a forgery prevention layer 2 and an adhesive layer 3 are provided in this order on one surface of a support 1.
(C) is one in which a colorant layer 4 pattern-coated on one surface of a support 1 and a forgery prevention layer 2 are arranged in a plane.

The color material layer 4 may be a single color such as black,
Three colors of yellow, magenta, and cyan, and four colors obtained by adding black ink to the three colors may be used. In addition, there is no problem even if a register mark or the like for alignment detection exists between the colors. The image forming method in the present invention is applicable to any method as long as it is a thermal transfer method such as a sublimation transfer method, a resin-type transfer method, or a wax-type melt transfer method. Examples of the components of the color material layer include those in which known dyes and pigments are dispersed in a binder, and these can be used in combination of two or more kinds. You may use it. Further, a dye and a pigment may be selectively used depending on a color to be used.

Examples of the binder resin include butyral resin, polyamide resin, polyethyleneimine resin, sulfonamide resin, polyester polyol resin, petroleum resin, styrene, α-methylstyrene, 2-methylstyrene, chlorostyrene, vinylbenzoic acid, and sodium vinylbenzenesulfonic acid. Styrene and its derivatives such as aminostyrene, their homopolymers and copolymers, methacrylates such as methyl methacrylate, ethyl methacrylate, and hydroxyethyl methacrylate; and methacrylic acid, methyl acrylate, ethyl acrylate,
Acrylates such as butyl acrylate and α-ethylhexyl acrylate, and acrylic acid, butadiene,
Dienes such as isodiene and isoprene, acrylonitrile, vinyl ethers, maleic acid and maleic acid esters, maleic anhydride, cinnamic acid, vinyl chloride, vinyl acetate and other vinyl monomers alone or other monomers Can be used. These resins can be used as a mixture of two or more kinds. Examples of release agents and softeners include higher fatty acids such as palmitic acid and stearic acid, metal salts of fatty acids such as zinc stearate, fatty acid esters or partially saponified products thereof, fatty acid derivatives such as fatty acid amides, and higher alcohols. Waxes such as ether derivatives of polyhydric alcohols, paraffin wax, carnauba wax, montan wax, beeswax, wood wax, candelilla wax, low molecular weight polyethylene having a viscosity average molecular weight of about 1,000 to 10,000, Polyolefins such as polypropylene and polybutylene, or low molecular weight copolymers of olefins, α-olefins with organic acids such as maleic anhydride, acrylic acid and methacrylic acid, vinyl acetate, low molecular weight oxidized polyolefins, halogenated polyolefins, Lauryl methacrylate Methacrylates having long alkyl side chains such as methacrylate and stearyl methacrylate, copolymers of methacrylates alone or with vinyl monomers such as styrene, low molecular weights such as polydimethylsiloxane and polydiphenylsiloxane Examples thereof include a silicone resin and a silicone-modified organic substance, and one or more kinds may be selected and used.

The surfactant can be mixed without any particular limitation as long as it is compatible with the composition in the ink layer. For example, fatty acid salts, higher alcohol sulfates, sulfates of aliphatic amines or aliphatic amides, fatty alcohol phosphates, sulfonates of dibasic fatty acid esters, aliphatic amide sulfonates, alkylallyl sulfonic acids Salts, anionic surfactants such as formalin-condensed naphthalenesulfonates, cationic surfactants such as aliphatic amine salts, quaternary ammonium salts, alkylpyridinium salts, polyoxyethylene alkyl ethers, polyoxyethylene alkylphenol Nonionic surfactants such as ethers, polyoxyethylene alkyl esters, sorbitan alkyl esters, and polyoxyethylene sorbitan alkyl esters; amphoteric surfactants such as carboxylic acid derivatives and imidazoline derivatives , Perfluoroalkyl carboxylic acids, copolymers of fluoroaliphatic group-containing acrylate or fluoroaliphatic group-containing methacrylate and polyoxyalkylene acrylate or polyoxyalkylene methacrylate, perfluoroalkyl sulfonamides, and the like.

The support 1 may be made of paper such as condenser paper or polyester film, from the viewpoint of ease of forming a color material layer, ease of handling, and mechanical strength.
Polystyrene films, polypropylene films, cellophane and the like are mentioned, and polyester films (specifically, PET (polyethylene terephthalate) or PE
N [polyethylene naphthalate], etc.). In addition,
The thickness of the substrate is preferably 2 to 50 μm from the viewpoint of mechanical strength, ease of handling or availability, but in order to expect a higher effect of the present invention (thermal conductivity, heat transfer coefficient, heat storage performance, etc.) 2 to 16 μm are even more preferred, as they also relate to the thermal properties of

Next, the forgery prevention layer will be described. The forgery prevention layer 2 emits visible light by an external stimulus, and a binder, a phosphor, a phosphor, and a phosphorescent, which emits light by an external stimulus such as ultraviolet rays, infrared rays, electron beams, X-rays, radiations, electric fields, and chemical reactions. It is provided by applying and drying a substance dispersed in an ink composed of a resin and an organic solvent. It is desirable that the above-mentioned phosphor, phosphor, and phosphor be contained in the forgery prevention layer in a range of 0.5 to 80% by mass. When the amount is less than 0.5% by mass, sufficient luminescence cannot be obtained, and when the amount exceeds 80% by mass, the binding force with the binder resin is weakened,
The resistance as a final product is weakened. Also, in consideration of the transferability (cutting property) as a thermal transfer medium, a medium having a large particle size cannot be used (the thermal conductivity becomes poor because the thickness of the anti-counterfeiting layer is increased, and the layer becomes tough. ), The average particle diameter is 1 nm to 6000 n
It is desirable to be within the range of m. The phosphor emits light in the vicinity of the visible region due to an external stimulus (excitation).
A substance in which afterglow for more than about 1 sec) continues is called a phosphor.
A long afterglow is called a luminous body.

The following are examples of the fluorescent substance. Ultraviolet light-emitting fluorescent agent is excited by ultraviolet light, the peak of the spectrum emitted when returning to an energy level lower than this is in the wavelength region of blue, green, red, etc.,
After adding a small amount of metal (copper, silver, manganese, bismuth, lead, etc.) to the high-purity phosphor of zinc sulfide or alkaline earth metal sulfide as an activator to enhance emission,
Obtained by high-temperature firing. Hue, brightness, and the degree of color decay can be adjusted by the combination of the host crystal and the activator. In addition, the infrared-emitting fluorescent agent is excited by infrared light, an infrared-visible conversion fluorescent agent that emits visible light, and is excited by infrared light,
Some emit light at longer wavelengths. The former infrared-visible conversion fluorescent agent is a phosphor having a very special excitation mechanism,
Excitation of visible light is performed by using a plurality of infrared photons with low energy. There are two types of mechanisms, one is by multi-step excitation in activator ions
On the other hand, multiple excitations of the resonance energy from the sensitizer each enable high excitation. The first type is
It is observed in many host crystals using Er3 + or Ho3 + as an activator. In the later type, the sensitizer Yb3 + absorbs infrared rays, and Er3 of the emission center is emitted by multi-step energy transfer.
+, Tm3 +, Ho3 +, etc. are excited to a high level. In addition, semiconductor materials having high electron mobility and photoconductivity, such as sulfides (ZnS, CdS) and oxysulfides (Y2O2S) as host crystals, can be used as electron beam excited phosphors. It is possible. Further, a phosphor (Zn, Cd) S: A having high efficiency with respect to radiation such as X-rays and particle beams
g and electroluminescent phosphors that directly convert electric energy into luminescence are also given as examples that can be used. Also,
In addition to the above fluorescent materials, organic pigments and dyes such as stilbene, such as diaminostilbenzylsulfonic acid, diaminodiphenyl, imidazole, thiazole, coumarin, naphthalimide, and thiophene may be used. .

Examples of the binder resin for the forgery prevention layer include butyral resin, polyamide resin, polyethyleneimine resin, sulfonamide resin, polyester polyol resin, petroleum resin, styrene, α-methylstyrene,
-Methylstyrene, chlorostyrene, vinylbenzoic acid,
Styrene and its derivatives such as sodium vinylbenzenesulfonate and aminostyrene, homopolymers and copolymers of substituted products, methacrylates such as methyl methacrylate, ethyl methacrylate and hydroxyethyl methacrylate, and methacrylic acid, methyl acrylate and ethyl acrylate Esters and acrylic acid such as butyl acrylate, butyl acrylate, α-ethylhexyl acrylate,
Dienes such as butadiene, isodiene and isoprene, acrylonitrile, vinyl ethers, maleic acid and maleic esters, maleic anhydride, cinnamic acid, vinyl chloride, vinyl acetate, and other vinyl monomers alone or in other quantities One or more copolymers such as copolymers can be used. The anti-counterfeit layer is made of JIS K7
105 The diffuse transmittance and the total light transmittance are measured by using an integrating sphere light transmittance measuring device defined in “Test Method for Optical Properties of Plastics”, and the haze (haze value) represented by the ratio is measured. It is necessary to adjust the value to be 5% or more. When the haze is less than 5%, it is almost colorless and transparent, so it becomes difficult to perform pattern coating during production. For the above reasons, the haze can be adjusted to the forgery prevention layer by adding a coloring agent, a matting agent, an extender pigment or the like. When the adhesion to a specific image receiving layer is taken into consideration, and if the separation from the support cannot be obtained, a separate release layer may be provided. In this case, the separation may be performed between the release layer and the forgery prevention layer, or when the release layer has an adhesive property to the object to be transferred, the entire release layer may be transferred.

Next, the portion of the adhesive layer 3 is provided as necessary to efficiently transfer the forgery prevention layer, and the adhesive layer has a close contact with the surface of the image receiving layer of the intermediate transfer medium and the ink layer. is necessary. Examples of the resin used for the adhesive layer include nitrocellulose, ethylcellulose, cellulose derivatives such as cellulose acetate propionate, styrene resins such as polystyrene and poly-α-methylstyrene, and acrylic resins such as polymethyl methacrylate and polyethyl acrylate. Resin, polyvinyl chloride, polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, vinyl resin such as polyvinyl butyral, polyvinyl acetal, polyester resin, polyamide resin, epoxy resin, polyurethane resin, petroleum resin, ionomer, ethylene acrylic acid Synthetic resin such as copolymer, ethylene-acrylate copolymer, rosin, rosin-modified maleic resin, ester gum, polyisobutylene rubber, butyl rubber, styrene butadiene rubber, butadiene acrylonitrile Arm, polyamide resins, derivatives of natural resins and synthetic rubber polychlorinated olefins such like. The adhesive layer can be formed from a composition comprising one or more of the above materials. In addition, it is of course possible to add the above-mentioned softener and the like to the color material layer.

When a pressure-sensitive adhesive is used for the adhesive layer, the pressure-sensitive adhesive may be any known pressure-sensitive adhesive.
Acrylic, rubber, vinyl acetate adhesives and the like. When a heat-sensitive delay adhesive is used for the adhesive layer, a known heat-sensitive delay adhesive may be used. Further, in order to improve the heat resistance and the slipperiness of the substrate of the thermal transfer recording medium, it may be preferable to provide a back coat layer on the surface of the substrate on which the color material layer and the forgery prevention layer are not provided. In other words, when the requirements for thermal transfer become more severe (for example, a requirement for high-speed thermal transfer)
In addition, by combining the above-described basic configuration of the thermal transfer sheet with a back coat layer made of an appropriate material that is compatible with the material of the base sheet, it is possible to easily meet stricter requirements.

An anti-counterfeit layer containing a luminescent material and an adhesive layer exhibiting heat-sensitive adhesive properties are laminated on a support in this order, and are peeled from between the support and the anti-counterfeit layer by heating. Both the adhesive and the adhesive layer can be transferred imagewise to the image receiving layer side, and the heating may be either imagewise or solid in an arbitrary shape.

According to the present invention, there is provided a primary transfer in which a color material is transferred from a heat-sensitive transfer recording medium based on image data to record image information on an image receiving layer of an intermediate transfer medium having an image receiving layer formed thereon; In a method for manufacturing an image display body created by secondary transfer of transferring a recorded intermediate transfer medium to a transfer receiving body, a forgery prevention layer that emits visible light by an external stimulus is provided on the surface of the image receiving layer of the intermediate transfer medium. A method for producing an image display, comprising performing secondary transfer to an object to be transferred after transferring.

Next, the intermediate transfer medium will be described. FIG. 2 is a cross-sectional view showing an example of the configuration of the intermediate transfer medium used in the present invention. 1A shows an image receiving layer 5 provided on a support 1. FIG. (B) is one in which a release layer 6 and an image receiving layer 5 are provided on a support 1 in this order. The release layer is provided as needed. (C)
Are formed on the support 1 in order by a release layer 6 and a transparent OVD layer 7.
And an image receiving layer 5 in this order. The thickness of the substrate of the support is not particularly limited, but is generally 9 to 300 μm, preferably 16 to 200 μm in consideration of the transportability of the printer.

The image receiving layer 5 is for transferring an image pattern from a thermosensitive recording medium, and is usually made of a thermoplastic resin. The thermoplastic resin used in the image receiving layer includes, for example, polyester resins such as linear saturated polyester, polyvinyl chloride resins such as polyvinyl chloride and vinyl chloride / vinyl acetate copolymer, polyacrylic acid, polymethyl acrylate, Acrylic resins such as polyacrylic acid-2 naphthyl, polymethacrylic acid, polyethyl methacrylate, polyacrylonitrile, polymethacrylomethyl, etc .; vinyl resins such as polystyrene, polyvinyl benzene, polyvinyl butyral, and styrene butadiene copolymer; And the like.

Various fillers can be added to the image receiving layer for the purpose of preventing blocking. For example,
Teflon-based fine particles, silicon resin fine particles, benzoguanamine resin-melamine resin condensate fine particles, starch, calcium carbonate, titanium oxide, talc, kaolin, zinc oxide, calcium carbonate, silica, and the like. Also,
These addition amounts are 1 to 5 with respect to 100 parts of the thermoplastic resin.
0 parts by weight is preferred. Further, various additives such as an ultraviolet absorber, a film forming aid, a coating solution stabilizer, a leveling agent, and an antistatic agent can be added to the image receiving layer. The image receiving layer of the present invention can be produced by a conventional method.For example, the image receiving layer forming composition is coated on one of the substrates by a coating method such as gravure, a Meyer bar, or a roll coat, and dried. Can be produced by forming

When it is difficult for the image receiving layer to have releasability from the support, a separate release layer 6 may be provided as shown in FIG. In this case, peeling may be performed between the peeling layer 6 and the image receiving layer 5 or between the peeling layer 6 and the support 1. When only the image receiving layer is peeled off, the surface is exposed when the final product (image display body) is formed. If it is difficult to separately apply a top coat, a friction resistant material or the like may be applied to the image receiving layer itself. It needs to be taken into account. Further, if the intermediate transfer medium is within a step that does not cause a gap at the time of printing, as shown in FIG.
It is of course also possible to provide a layer 7. OV
As D technology, holograms that can reproduce stereoscopic images,
A simple diffraction grating, a relief type in which a plurality of types of diffraction gratings are arranged in a small area to form pixels, and a diffraction image such as a grating image or a pixelgram to be expressed is given as a representative example, and the relief type is recorded as a relief of unevenness on the surface. Alternatively, it may be a volume type in which an image is recorded three-dimensionally in the thickness direction, or an amplitude type in which an image is recorded by utilizing the amplitude of light due to a change in transmittance of a material. Also, an iris-colored pearl pigment or pearl chip, a multilayer film in which materials having different refractive indexes are laminated, and an OVI (Optical Variable Ink) obtained by pulverizing the multilayer film to form an ink.
Can be cited as an example of the OVD technology.

[0024]

The present invention will be described below in more detail with reference to examples.

<Example 1> (Production of thermal transfer sheet) The following color material layers (yellow, magenta, cyan), a forgery prevention layer, and an adhesive layer were provided on a 4.5 μm polyester film as a support by a gravure printing machine (6-color machine). ), A sample was prepared by pattern-coating at 90 ° C. in a drying order. In addition, since the forgery prevention layer and the adhesive layer were white, it was easy to visually check and align the pattern with an auto sensor. Each dry film thickness is 0.4 μm for the color material layer, 2.0 μm for the forgery prevention layer, and 1.0 μm for the adhesive layer. The haze of the forgery prevention layer was 20.3%, and the haze of the adhesive layer was 10.7%. (Yellow ink layer composition) Yellow pigment 3.0 parts by weight Butyral resin 6.0 parts by weight Tetrahydrofuron 60.0 parts by weight Toluene 31.0 parts by weight (Magenta ink layer composition) Magenta pigment 1.5 parts by weight Butyral resin 7.5 parts by weight Tetrahydrofuron 60.0 parts by weight Toluene 31.0 parts by weight (cyan ink layer composition) Cyan pigment 1.5 parts by weight Butyral resin 7.5 parts by weight Tetrahydrofuron 60.0 parts by weight Toluene 31.0 Parts by weight (forgery prevention layer) acrylic resin 15.0 parts by weight vinyl chloride vinyl acetate copolymer resin 5.0 parts by weight fluorescent pigment 10.0 parts by weight methyl ethyl ketone 35.0 parts by weight toluene 35.0 parts by weight (adhesive layer) polyester Resin 15.0 parts by weight Epoxy resin 15.0 parts by weight Polyethylene WAX 2.0 weight Parts Silica 1.0 parts by weight Methyl ethyl ketone 37.0 parts Toluene 30.0 parts by weight

(Production of Intermediate Transfer Foil) As a support, a release protective layer and an image receiving layer each having the following composition were applied to a polyester film 25 μm by a gravure printing machine at a drying temperature of 90 ° C., and dried to prepare a sample. Each dried film thickness was 1.0 μm for the ink layer and 4.0 μm for the image receiving / adhesive layer.
It is. (Release layer composition) Acrylic resin 23.0 parts by weight Polyethylene wax 5.0 parts by weight Polyester resin 2.0 parts by weight Methyl ethyl ketone 35.0 parts by weight Toluene 35.0 parts by weight (Image receiving layer composition) Vinyl chloride-vinyl acetate Copolymer resin 8.0 parts by weight Epoxy resin 4.0 parts by weight Urethane resin 8.0 parts by weight Tetrahydrofuran 60.0 parts by weight Methyl ethyl ketone 20.0 parts by weight

Using a commercially available thermal transfer printer, the obtained thermal transfer sheet and image receiving body are subjected to image printing and, at the same time, an image with a forgery prevention layer is formed. The image was transferred with a silicone rubber roll heated to ℃ to obtain an image transfer (image display). In the image display manufactured in this example, the presence of the anti-counterfeit layer is not recognizable in appearance, and the appearance is not changed to that of a normal thermal transfer. Was completed.

[0028]

According to the present invention, an intermediate transfer medium is prepared by using a heat-sensitive transfer recording medium provided with a transferable forgery prevention layer.
When forming an invisible information image after forming an image using color materials, there is no image unevenness due to the gap of the head, and the image quality is excellent, and even if the forgery or tampering is attempted on the image display body as the final transfer product, At the same time, the forgery prevention layer is destroyed, so that an image display having a high forgery and falsification prevention effect can be obtained. In addition, since the forgery prevention layer usually has a white color, it is easy to apply the color material layer separately (pattern coating), and it has become possible to easily manufacture a thermal transfer recording medium.

[Brief description of the drawings]

FIG. 1A is a cross-sectional view showing a configuration of a thermal transfer recording medium of the present invention, in which a forgery prevention layer is provided on a support.
(B) is one in which a forgery prevention layer and an adhesive layer are provided on a support in this order. (C) shows a structure in which a colorant layer and a forgery prevention layer, which are pattern-coated on a support, are arranged in a plane.

FIG. 2A is a cross-sectional view illustrating a configuration of an intermediate transfer medium of the present invention, in which an image receiving layer is provided on a support.
(B) is one in which a release layer and an image receiving layer are provided on a support in this order. (C) is one in which a release layer, a transparent OVD layer and an image receiving layer are sequentially provided on a support in this order.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Support body 2 ... Anti-counterfeit layer 3 ... Adhesive layer 4 ... Color material layer 5 ... Image receiving layer 6 ... Release layer 7 ... Transparent OVD layer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B42D 15/10 501 B41M 5/26 K 101B F-term (Reference) 2C005 HA01 HB02 HB03 JB40 2C065 AB02 AB09 AC01 AF02 CJ02 CJ09 2H111 AA07 AA26 AA27 AB05 BA02 BA03 BA09 BA11 BA32 BA38 BA55 BA61 BA74 BA76 BA77 BA78 CA03 2H113 AA04 AA06 BA03 BA22 BC09 CA39 DA15 DA26 DA47 DA49 DA50 DA52 DA53 DA56 DA57 EA01 EA08 EA10

Claims (4)

[Claims] An anti-counterfeiting device comprising a support and at least two layers of a color material layer coating portion and a forgery prevention layer coating portion which are sequentially and repeatedly provided along the longitudinal direction of the support. A heat-sensitive transfer recording medium characterized in that the layer coating portion has a haze value of 5% or more and usually exhibits a white or pale color, but emits visible light upon external stimulus. 2. The anti-counterfeit layer coating portion has an average particle size of 1 to emit light by an external stimulus such as ultraviolet ray, infrared ray, electron beam, X-ray, radiation, electric field or chemical reaction.
It is composed of a composition containing one or more light-emitting materials of a phosphor, a phosphor, or a phosphorescent light within a range of from nm to 6,000 nm, and the light-emitting material has a solid content of 0.1%. 2. The thermal transfer recording medium according to claim 1, wherein the content is in the range of 5 to 80% by mass. 3. The anti-counterfeit layer coating section includes a counterfeit anti-layer containing the luminescent material and an adhesive layer exhibiting heat-sensitive adhesive properties, which are laminated on a support in this order, and the counterfeit anti-counterfeit is formed by heating. The thermal transfer recording medium according to claim 1, wherein the thermal transfer recording medium is separated from the anti-counterfeit layer, and both the forgery-preventive layer and the adhesive layer can be transferred imagewise to the image receiving layer side. 4. A primary transfer in which a color material is transferred from a thermal transfer recording medium based on image data to record image information on an image receiving layer of an intermediate transfer medium having an image receiving layer formed on at least one surface of a support. In a method for manufacturing an image display member created by secondary transfer of transferring an intermediate transfer medium on which image information is recorded to a transfer target, a visible light is applied to a surface of an image receiving layer of the intermediate transfer medium by an external stimulus. A method for producing an image display, comprising: transferring an anti-counterfeit layer to be transferred, and then performing secondary transfer to a transfer target.