JP5115190B2 - Method for producing image-formed product - Google Patents

Description

  The present invention relates to a method for producing an image formed product, in which an image formed product is formed by a thermal transfer method using an image forming intermediate transfer medium.

  Conventionally, an image forming method using a thermal transfer method is known as one of color or monochrome image forming techniques, and has been widely used as a means for easily obtaining a high-quality image. The thermal transfer system is an image obtained by transferring a thermal transfer sheet having a binder resin exhibiting specific thermal properties, a dye or a pigment from a thermal transfer sheet to a thermal transfer image receiving sheet by using a thermal printing device such as a thermal head or a laser. It is a method of forming. Such a thermal transfer system has an advantage that the apparatus can be miniaturized and is low in cost.

  The thermal transfer system is roughly classified into two types, a thermal melting transfer system and a thermal diffusion transfer system (sublimation transfer system), depending on a dye transfer mechanism from the thermal transfer sheet to the thermal transfer image receiving sheet. The thermal melt transfer system is a system for forming an image by using a heat transfer sheet having a heat melt binder and mainly a pigment, and transferring the heat melt dye to a heat transfer image receiving sheet by a heat transfer process by a heat transfer mechanism. (For example, patent document 1). On the other hand, the thermal diffusion transfer method (sublimation transfer method) uses a thermal transfer sheet having a thermal diffusible dye (sublimation dye), and the thermal diffusive dye (sublimation dye) is transferred to the thermal diffusion transfer mechanism (sublimation) by heat treatment. In this method, an image is formed by transferring to a thermal transfer image receiving sheet by a transfer mechanism (for example, Patent Document 2).

In the case of forming an image by such a thermal transfer method, there is usually a method of thermally transferring a color material from the thermal transfer sheet using a thermal transfer sheet having a plurality of color material layers necessary for forming a desired image. It is used. As such a thermal transfer sheet, a thermal transfer sheet in which four color material layers of cyan, magenta, yellow, and black are formed in a surface sequence, and a color material layer of three colors of red, green, and blue are sequentially processed. The thermal transfer sheet formed in (1) was a typical one so far.
However, in recent years, from the viewpoint of improving security, it is desired to form an image using a special color material such as a fluorescent material that emits fluorescence by a thermal transfer method or an optical variable material whose color changes depending on the viewing direction. (For example, Patent Document 3).

  When such a special dye is used, since there are a plurality of types of color materials to be transferred compared to the conventional dye, it is required that a color material layer having a larger number of colors than the conventional is disposed on the thermal transfer sheet used. However, simply increasing the number of color material layers of the thermal transfer sheet in response to the increase in color material layers required complicates the process of printing an image using it, and this impairs manufacturing suitability. was there.

JP 2001-96933 A JP 2006-281510 A JP 2003-1935 A

  The present invention has been made in view of such a situation, and provides an image-formed product manufacturing method capable of forming an image-formed product using many colors by a thermal transfer method in a simple process. It is for the purpose.

  In order to solve the above problems, the present invention provides a base material, an image receiving portion formed on the base material, and having a configuration in which a peelable protective layer and a receiving layer are laminated in this order, and the image receiving portion. An image forming intermediate transfer medium having a color material portion formed of a plurality of color material layers arranged adjacent to each other and arranged in a surface order is used, and a thermal transfer sheet is used as a receiving layer of the image forming intermediate transfer medium. A receiving layer printing step for printing an image using the image, and in the image printing step, an image-forming intermediate transfer medium including a receiving layer on which an image is printed and a transferred material, and the image is transferred onto the transferred material. A receiving layer transfer step for transferring the printed receiving layer, and an image printing step for printing an image on the transfer material by thermally transferring the color material from the color material layer of the intermediate transfer medium for image formation to the transfer material. The image on the transferred object To provide a manufacturing method of an image forming material characterized by having a a material to be transferred printing step of forming.

According to the present invention, after an image is printed on the receiving layer in the receiving layer printing step using the image forming intermediate transfer medium including the image receiving portion and the color material portion, the transferred object printing step By transferring the receiving layer onto the transferred material and further printing an image on the transferred material with the color material portion, it is possible to print an image of many colors on the transferred material with a simple process.
For this reason, according to the present invention, it is possible to produce an image formed product using a large number of colors by a thermal transfer method in a simple process.

  In the present invention, the thermal transfer sheet has a base material and a plurality of color material layers formed in the surface order on the base material, and a plurality of color materials containing different color materials per panel. It is preferred that the layers are arranged. This is because it is possible to manufacture an image formed product on which an image using a larger number of colors is printed using the method for manufacturing an image formed product of the present invention.

  In the present invention, it is preferable that a hologram layer in which a hologram is recorded is formed between the peelable protective layer and the receiving layer in the image receiving portion. As a result, since the hologram layer can be transferred onto the transferred body together with the receiving layer in the transferred body printing step, the image formed article having an excellent anti-counterfeit function using the method for producing an image formed article of the present invention. It is because it becomes possible to manufacture.

  The method for producing an image-formed product of the present invention produces an effect that an image-formed product using a large number of colors can be formed by a simple process by a thermal transfer method.

  Hereinafter, the method for producing an image-formed product of the present invention will be described.

  As described above, the method for producing an image-formed product of the present invention includes a base material, an image receiving portion formed on the base material, and having a configuration in which a peelable protective layer and a receiving layer are laminated in this order, An image forming intermediate transfer medium having a color material portion formed of a plurality of color material layers arranged adjacent to the image receiving portion and arranged in a plane sequence is used to receive the image forming intermediate transfer medium. A receiving layer printing step in which an image is printed on a layer using a thermal transfer sheet; and an intermediate transfer medium for image formation and a transferred body each having a receiving layer on which an image is printed in the image printing step, and the transferred body A receiving layer transfer step for transferring the receiving layer on which the image has been printed, and a color material from the color material layer of the intermediate transfer medium for image formation to the transfer material to thermally transfer the image onto the transfer material. The image is printed by the image printing process. And the transfer target body printing step of forming an image on the body, is characterized in that it has a.

  Such a method for producing an image-formed product of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view showing an example of a method for producing an image-formed product of the present invention. As illustrated in FIG. 1, the method for producing an image-formed product of the present invention has a configuration in which a base material 1, a peelable protective layer 2 a and a receiving layer 2 b are laminated in this order, formed on the base material 1. An image forming intermediate having an image receiving portion 2 having the color receiving portion 2 and a color material portion 3 formed adjacent to the image receiving portion 2 and composed of a plurality of color material layers 3a, 3b and 3c arranged in a surface sequential manner. Using the transfer medium 10 (FIG. 1A), a receiving layer printing step of printing an image on the receiving layer 2b of the intermediate transfer medium 10 for image formation using a thermal transfer sheet (not shown) (FIG. 1 ( b)) In the image printing step, the color material layer 3a of the intermediate transfer medium 10 ′ for image formation is used by using the intermediate transfer medium 10 ′ for image formation and the transfer target 20 including the receiving layer 2b on which the image is printed. ~ 3c dyed material 20 using thermal head A An image printing step (FIG. 1 (c-1)) for printing an image on the transfer target 20 by thermally transferring the image, and reception for transferring the receiving layer 2b on which the image is printed on the transfer target 20 An image forming body 30 is manufactured by including a transferred object printing process for forming an image on the transferred object 20 by a layer transfer process (FIG. 1 (c-2)) (FIG. 1 (c)). Is.

According to the present invention, after an image is printed on the receiving layer in the receiving layer printing step using the image forming intermediate transfer medium including the image receiving portion and the color material portion, the transferred object printing step By transferring the receiving layer on which the image has been printed onto the transfer target, and further printing the image on the transfer target with the color material portion, it is possible to print a multi-color image on the transfer target in a simple process. can do.
For this reason, according to the present invention, it is possible to produce an image formed product using a large number of colors by a thermal transfer method in a simple process.

The method for producing an image print according to the present invention includes at least the receiving layer printing step and the transferred object printing step.
Hereinafter, these steps used in the present invention will be described in order.

1. Receiving Layer Printing Process First, the receiving layer printing process used in the present invention will be described. This step is formed on a substrate, an image receiving portion formed on the substrate, and having a configuration in which a peelable protective layer and a receiving layer are laminated in this order, and adjacent to the image receiving portion. A step of printing an image using a thermal transfer sheet on a receiving layer of the image forming intermediate transfer medium, using an image forming intermediate transfer medium having a color material portion composed of a plurality of color material layers arranged sequentially. It is.

(1) Intermediate transfer medium for image formation The intermediate transfer medium for image formation used in this step will be described. The intermediate transfer medium for image formation used in this step is at least a base material, an image receiving portion formed on the base material, and having a configuration in which a peelable protective layer and a receiving layer are laminated in this order, And a color material portion formed of a plurality of color material layers arranged adjacent to the image receiving portion and arranged in a plane order.

a. Image receiving portion The image receiving portion has a receiving layer on which an image is printed in this step, and a peelable protective layer. The receiving layer is a transfer material used in a transfer material printing step described later. It has a function of bonding.

(Receptive layer)
As the receiving layer used in this step, an image can be printed by a thermal transfer method using a thermal transfer sheet in this step, and a function of adhering to a transfer target in a transfer target printing step described later. It will not specifically limit if it is provided. In particular, in this step, a material containing a thermoplastic resin is preferably used as such a receiving layer. This is because the receiving layer containing the thermoplastic resin can achieve both the dyeing property of the dye and the adhesiveness to the transfer target.

  As the thermoplastic resin used in this step, depending on the type of thermal transfer sheet used to print an image on the receiving layer in this step, the type of transfer target used in the transfer target printing step described later, etc. There is no particular limitation as long as a desired image can be printed and the transfer target can be adhered. Examples of such thermoplastic resins include ethylene-vinyl acetate copolymer resins, vinyl chloride-vinyl acetate copolymer resins, polyamide resins, polyester resins, polyethylene resins, ethylene-isobutyl acrylate copolymer resins, acetal resins, butyral resins. , Polyvinyl acetate and its copolymer resins, ionomer resins, acid-modified polyolefin resins, acrylic / methacrylic (meth) acrylic resins, acrylic ester resins, ethylene / (meth) acrylic acid copolymers , Ethylene (meth) acrylic acid ester copolymer, polymethyl methacrylate resin, cellulose resin, polyvinyl ether resin, polyurethane resin, polycarbonate resin, polypropylene resin, epoxy resin, phenol resin, vinyl resin, male Acid resin, alkyd resin, polyethylene oxide resin, urea resin, melamine resin, melamine alkyd resin, silicone resin, rubber resin, styrene butadiene styrene block copolymer (SBS), styrene isoprene styrene block copolymer (SIS) Styrene ethylene butylene styrene block copolymer (SEBS), styrene ethylene propylene styrene block copolymer (SEPS), and the like. Any of these thermoplastic resins can be suitably used in this step.

  In addition, the thermoplastic resin used for this process may be only one type, or may be two or more types.

  A release agent may be added to the receiving layer used in this step in order to prevent thermal fusion with the thermal transfer sheet and to provide release properties. Examples of the release agent include solid waxes such as polyethylene wax, amide wax, and Teflon (registered trademark) powder, fluorine-based or phosphate ester-based surfactant, silicone oil, modified silicone oil, and various silicone resins. However, silicone oil and modified silicone oil are preferable.

  In addition, the receiving layer used in this step may contain other additives in addition to the thermoplastic resin. Examples of the additive used in this step include a dispersant, a filler, a plasticizer, and an antistatic agent.

  Furthermore, the thickness of the receiving layer used in this step is not particularly limited, and can be appropriately determined according to the kind of the thermoplastic resin described above. In particular, the thickness of the receiving layer used in this step is preferably in the range of 1 μm to 11 μm, and more preferably in the range of 1 μm to 6 μm. This is because if the thickness is less than the above range, the adhesiveness between the transferred body and the receiving layer may be insufficient in the receiving layer transfer process in the transferred body printing process described later. On the other hand, if the thickness is larger than the above range, the temperature at which the receptor layer is heated becomes too high when the receptor layer is transferred to the receptor in the receptor layer transfer process in the object-to-be-transferred image printing process, which will be described later. This is because damage may occur.

(Peelable protective layer)
Next, the peelable protective layer used in this step will be described. The peelable protective layer used in this step is formed between the receiving layer and the base material, and adjusts the adhesion between the receiving layer and the base material, and accepts it in the transferred object printing step described later. In the layer transfer step, it has a function of facilitating transfer of the receiving layer onto the transfer target.

  The peelable protective layer used in this step is particularly limited as long as the adhesive strength between the two can be within a desired range, depending on the material used for the receptor layer and the type of base material described later. It is not a thing. Among them, in the present invention, acrylic and methacrylic resins such as polymethyl acrylate and polymethyl methacrylate, polyvinyl chloride resin, cellulose resin, silicone resin, chlorinated rubber, casein, various surfactants, metal oxides, etc. A peelable protective layer using one or a mixture of two or more can be suitably used.

(Arbitrary configuration)
In the image receiving portion used in this step, any other configuration other than the receiving layer and the peelable protective layer may be used. Such an arbitrary configuration is not particularly limited, and those having a desired function can be used in accordance with the type and application of the image formed product produced by the present invention. In particular, in this step, it is preferable to use a hologram layer formed between the peelable protective layer and the receiving layer and having a hologram recorded thereon as the optional configuration.

An example in which the hologram layer is used in the image receiving portion used in this step will be described with reference to the drawings. FIG. 2 is a schematic view showing an example of an image forming intermediate transfer medium used in this step.
As illustrated in FIG. 2, the image forming intermediate transfer medium 10 used in this step is a hologram in which an image receiving unit 2 ′ has a hologram recorded between a peelable protective layer 2 a and a receiving layer 2 b. The layer 2c may be formed.

  Since such a hologram layer is used, the hologram layer can be transferred onto the transferred body together with the receiving layer in the receiving layer transfer process in the transferred object printing process described later. This is because it is possible to manufacture an image formed product having an excellent anti-counterfeit function by using the formed product manufacturing method.

Here, examples of the hologram layer used in this step include a relief hologram layer in which a relief hologram is recorded and a volume hologram in which a volume hologram is recorded.
Hereinafter, these will be described in detail.

(Relief hologram layer)
The relief hologram layer has a structure in which at least a hologram resin layer in which fine irregularities of a hologram are formed on one surface of a synthetic resin and a reflective layer are laminated. As the hologram resin layer, a thermoplastic resin such as polyvinyl chloride, acrylic resin (eg, PMMA), polystyrene, or polycarbonate can be used. In addition to these thermoplastic resins, thermosetting resins such as unsaturated polyester, melamine, epoxy, polyester (meth) acrylate, urethane (meth) acrylate, epoxy (methacrylate, polyether (meth) acrylate, polyol (meth) Acrylate, melamine (meth) acrylate, triazine acrylate, etc. Further, ionizing radiation curable resins having radically polymerizable unsaturated groups can be used. A mixture of a plastic resin and a thermosetting resin can also be used.

  The hologram can be formed on the hologram resin layer by a conventionally known method using the above materials. For example, in the case of forming an uneven relief representing a diffraction grating or hologram interference fringe, a master on which the diffraction grating or hologram interference fringe is recorded in an uneven shape is used as a press mold, and the original is superimposed on the hologram resin layer. Then, the concavities and convexities of the original plate can be replicated on the hologram resin by heat-pressing both of them by appropriate means such as a heating roll. The thickness of the hologram resin layer as described above is preferably in the range of 0.1 to 6 μm, and more preferably in the range of 0.1 to 4 μm.

As the reflective layer, the reflection and / or diffraction effect of the relief is enhanced by providing the reflective layer on the relief surface of the hologram resin layer surface provided with a predetermined relief structure, so that it is higher than the optical refractive index of the hologram resin layer. There is no particular limitation. It is a nearly colorless and transparent hue, and its optical refractive index is different from that of the hologram resin layer. Can do. For example, examples of a thin film having a higher refractive index than the hologram resin layer include ZnS, TiO ₂ , Al ₂ O ₃ , Sb ₂ S ₃ , SiO, SnO ₂ , ITO, and the like.

  The reflective layer is formed on the relief surface of the hologram resin layer by a vacuum thin film method such as vapor deposition, sputtering, ion plating, and CVD so as to have a thickness of about 10 to 2000 nm, preferably 20 to 1000 nm. That's fine. Moreover, you may use the transparent synthetic resin from which a hologram resin layer and a light refractive index differ.

(Volume hologram layer)
The material constituting the volume hologram layer used in this step is not particularly limited as long as it can record a volume hologram, and any material generally used for volume holograms can be arbitrarily used. it can. Examples of such a material include known volume hologram recording materials such as silver salt materials, dichromated gelatin emulsions, photopolymerizable resins, and photocrosslinkable resins. i) a first photosensitive material containing a binder resin, a photopolymerizable compound, a photopolymerization initiator and a sensitizing dye, or (ii) a cationic polymerizable compound, a radical polymerizable compound, a photo radical polymerization initiator system, and A second photosensitive material comprising a cationic photopolymerization initiator system can be suitably used.
Hereinafter, the first photosensitive material and the second photosensitive material will be described in order.

(I) First photosensitive material First, the first photosensitive material will be described. As described above, the first photosensitive material contains a binder resin, a photopolymerizable compound, a photopolymerization initiator, and a sensitizing dye.

  Examples of the binder resin include at least one copolymerizable monomer group such as poly (meth) acrylic acid ester or a partially hydrolyzed product thereof, polyvinyl acetate or a hydrolyzed product thereof, acrylic acid, and an acrylic acid ester. As a polymerization component, or a mixture thereof, polyisoprene, polybutadiene, polychloroprene, polyvinyl acetal which is a partial acetalization product of polyvinyl alcohol, polyvinyl butyral, polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, etc. Or a mixture thereof. Here, when the volume hologram layer is formed, a step of moving the monomer by heating may be performed in order to stabilize the recorded volume hologram. For this reason, it is preferable that the binder resin used in this step has a relatively low glass transition temperature and can easily move the monomer.

  As the photopolymerizable compound, there can be used photopolymerization having at least one ethylenically unsaturated bond per molecule, photocrosslinkable monomer, oligomer, prepolymer and a mixture thereof as described later. . Specific examples include unsaturated carboxylic acids and salts thereof, esters of unsaturated carboxylic acids and aliphatic polyhydric alcohol compounds, amide compounds of unsaturated carboxylic acids and aliphatic polyvalent amine compounds, and the like.

  Here, specific examples of the unsaturated carboxylic acid monomer include acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid, maleic acid and the like. Specific examples of the ester monomer of the aliphatic polyhydric alcohol compound and the unsaturated carboxylic acid include, for example, acrylic acid esters such as ethylene glycol diacrylate, triethylene glycol diacrylate, and 1,3-butanediol diacrylate. , Tetramethylene glycol diacrylate, propylene glycol diacrylate, neopentyl glycol diacrylate, trimethylolpropane triacrylate, trimethylolpropane tri (acryloyloxypropyl) ether, trimethylolethane triacrylate, and the like.

  Examples of the methacrylic acid ester include tetramethylene glycol dimethacrylate, triethylene glycol dimethacrylate, neopentyl glycol dimethacrylate, trimethylolpropane trimethacrylate, and trimethylolethane trimethacrylate. Examples of the itaconic acid ester include ethylene glycol diitaconate, propylene glycol diitaconate, and 1,3-butanediol diitaconate. Examples of the crotonic acid ester include ethylene glycol dicrotonate, tetramethylene glycol dicrotonate, pentaerythritol dicrotonate, and sorbitol tetracrotonate. Furthermore, examples of the isocrotonic acid ester include ethylene glycol diisocrotonate, pentaerythritol diisocrotonate, and sorbitol tetraisocrotonate. Furthermore, examples of the maleic ester include ethylene glycol dimaleate, triethylene glycol dimaleate, pentaerythritol dimaleate, and sorbitol tetramaleate.

Examples of the halogenated unsaturated carboxylic acid include 2,2,3,3-tetrafluoropropyl acrylate, 1H, 1H, 2H, 2H-heptadecafluorodecyl acrylate, 2,2,3,3-tetrafluoropropyl methacrylate, and the like. Can be mentioned.
Specific examples of the amide monomer of the unsaturated carboxylic acid and the aliphatic polyvalent amine compound include methylene bisacrylamide, methylene bismethacrylamide, 1,6-hexamethylene bisacrylamide, 1,6-hexamethylene bis. And methacrylamide.

  Examples of the photopolymerization initiator used in this step include 1,3-di (t-butyldioxycarbonyl) benzophenone, 3,3 ′, 4,4′-tetrakis (t-butyldioxycarbonyl) benzophenone, Examples thereof include N-phenylglycine, 2,4,6-tris (trichloromethyl) -s-triazine, 3-phenyl-5-isoxazolone, 2-mercaptobenzimidazole, and imidazole dimers. Among them, the photopolymerization initiator used in this step is preferably one that is decomposed after hologram recording from the viewpoint of stabilizing the recorded volume hologram. For example, organic peroxides are preferable because they are easily decomposed by irradiation with ultraviolet rays.

  Sensitizing dyes used in this step include thiopyrylium salt dyes, merocyanine dyes, quinoline dyes, styrylquinoline dyes, ketocoumarin dyes, thioxanthene dyes, xanthene dyes, oxonol dyes, cyanine dyes, rhodamines And dyes, thiopyrylium salt dyes, pyrylium ion dyes, diphenyliodonium ion dyes, and the like.

(Ii) Second photosensitive material Next, the second photosensitive material used in this step will be described. As described above, the second photosensitive material contains a cationic polymerizable compound, a radical polymerizable compound, a photo radical polymerization initiator system, and a cationic polymerization initiator system.

  Here, when such a second photosensitive material is used, a method for recording a volume hologram on the volume hologram layer is to irradiate light such as laser light that is photosensitized by a photo radical polymerization initiator system, and then to photo cation. A method of irradiating light having a wavelength different from that of the laser light that the polymerization initiator system is sensitive to will be used.

  As the cationic polymerizable compound, a liquid compound at room temperature is preferably used because it is preferable that the polymerization of the radical polymerizable compound is performed in a composition having a relatively low viscosity. Examples of such cationically polymerizable compounds include diglycerol diether, pentaerythritol polydiglycidyl ether, 1,4-bis (2,3-epoxypropoxyperfluoroisopropyl) cyclohexane, sorbitol polyglycidyl ether, 1,6- Examples thereof include hexanediol glycidyl ether, polyethylene glycol diglycidyl ether, and phenyl glycidyl ether.

  As the radical polymerizable compound, those having at least one ethylenically unsaturated double bond in the molecule are preferable. The average refractive index of the radical polymerizable compound used in this step is preferably larger than the average refractive index of the cationic polymerizable compound, and more preferably 0.02 or more. This is because a volume hologram is formed by the difference in refractive index between the radical polymerizable compound and the cationic polymerizable compound. Therefore, when the average refractive index difference is not more than the above value, the refractive index modulation becomes insufficient. Examples of the radical polymerizable compound used in this step include acrylamide, methacrylamide, styrene, 2-bromostyrene, phenyl acrylate, 2-phenoxyethyl acrylate, 2,3-naphthalenedicarboxylic acid (acryloxyethyl) monoester, Examples thereof include methylphenoxyethyl acrylate, nonylphenoxyethyl acrylate, and β-acryloxyethyl hydrogen phthalate.

  As the radical photopolymerization initiator system used in this step, any active radical can be generated by the first exposure when the volume hologram is recorded, and the active radical can polymerize the radical polymerizable compound. It is not particularly limited. Moreover, you may use combining the sensitizer which is a component which generally absorbs light, an active radical generating compound, and an acid generating compound. A sensitizer in such a radical photopolymerization initiator system often uses a colored compound such as a dye to absorb visible laser light, but in the case of a colorless transparent hologram, a cyanine dye is used. Is preferred. Since cyanine dyes are generally easily decomposed by light, the dyes in the hologram are decomposed and absorbed in the visible region by being left exposed for several hours to several days under post-exposure in this process or under room light or mode light. This is because a colorless and transparent volume hologram can be obtained.

  Specific examples of the cyanine dye include anhydro-3,3′-dicarboxymethyl-9-ethyl-2,2′thiacarbocyanine betaine, anhydro-3-carboxymethyl-3 ′, 9′-diethyl-2. , 2 'thiacarbocyanine betaine, 3,3', 9-triethyl-2,2'-thiacarbocyanine iodine salt, 3,9-diethyl-3'-carboxymethyl-2,2'-thiacarbocyanine Iodine salt, 3,3 ′, 9-triethyl-2,2 ′-(4,5,4 ′, 5′-dibenzo) thiacarbocyanine iodine salt, 2- [3- (3-ethyl-2-benzo Thiazolidene) -1-propenyl] -6- [2- (3-ethyl-2-benzothiazolidene) ethylideneimino] -3-ethyl-1,3,5-thiadiazolium iodine salt, 2- [[3-Allyl-4 Oxo-5- (3-n-propyl-5,6-dimethyl-2-benzothiazolidene) -ethylidene-2-thiazolinylidene] methyl] 3-ethyl-4,5-diphenylthiazolinium-iodine salt, 1 , 1 ', 3,3,3', 3'-hexamethyl-2,2'-indotricarbocyanine / iodine salt, 3,3'-diethyl-2,2'-thiatricarbocyanine / perchlorate Anhydro-1-ethyl-4-methoxy-3'-carboxymethyl-5'-chloro-2,2'-quinothiocyanine betaine, anhydro-5,5'-diphenyl-9-ethyl-3,3'- Examples thereof include disulfopropyloxacarbocyanine hydroxide and triethylamine salts, and one or more of these can be used in combination.

  Examples of the active radical generating compound include diaryliodonium salts and 2,4,6-substituted-1,3,5-triazines. The use of diaryliodonium salts is particularly preferred when high photosensitivity is required. Specific examples of the diaryl iodonium salts include diphenyl iodonium, 4,4′-dichlorodiphenyl iodonium, 4,4′-dimethoxydiphenyl iodonium, 4,4′-ditertiary butyl diphenyl iodonium, 3,3′-dinitrodiphenyl iodonium. Such as chloride, bromide, tetrafluoroborate, hexafluorophosphate, hexafluoroarsenate, hexafluoroantimonate, trifluoromethanesulfonate, 9,10-dimethoxyanthracene-2-sulfonate, and the like. Specific examples of 2,4,6-substituted-1,3,5-triazines include 2-methyl-4,6-bis (trichloromethyl) -1,3,5-triazine, 2,4,6 -Tris (trichloromethyl) -1,3,5-triazine, 2-phenyl-4,6-bis (trichloromethyl) -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- ( p-methoxyphenylvinyl) -1,3,5-triazine, 2- (4′-methoxy-1′-naphthyl) -4,6-bis (trichloromethyl) -1,3,5-triazine and the like. .

  The cationic photopolymerization initiator system used in this step has low photosensitivity for the first exposure when a volume hologram is recorded, and is sensitive to post-exposure by irradiating light having a wavelength different from that of the first exposure. The initiator system is not particularly limited as long as it generates a Bronsted acid or a Lewis acid and polymerizes a cationically polymerizable compound. In particular, in this step, it is particularly preferable to use a compound that does not polymerize the cationic polymerizable compound during the first exposure. Examples of such a cationic photopolymerization initiator system include diaryliodonium salts, triarylsulfonium salts, iron allene complexes, and the like. Preferable diaryliodonium salts include iodonium tetrafluoroborate, hexafluorophosphate, hexafluoroarsenate, hexafluoroantimonate and the like shown in the radical photopolymerization initiator system described above. Preferable triarylsulfonium salts include triphenylsulfonium, 4-tertiarybutyltriphenylsulfonium, and the like.

  In the second photosensitive material, a binder resin, a thermal polymerization inhibitor, a silane coupling agent, a plasticizer, a colorant, and the like may be used in combination as necessary. The binder resin is used to improve the film formability and film thickness uniformity of the composition before hologram formation, and to stabilize interference fringes formed by polymerization by irradiation with light such as laser light until post-exposure. Used to make it exist. The binder resin only needs to be compatible with the cationic polymerizable compound or the radical polymerizable compound. For example, a copolymer of chlorinated polyethylene, polymethyl methacrylate, methyl methacrylate and other alkyl (meth) acrylates. And a copolymer of vinyl chloride and acrylonitrile, polyvinyl acetate, and the like. The binder resin may have reactivity such as a cation polymerizable group in its side chain or main chain.

  The thickness of the volume hologram layer used in this step is not particularly limited as long as it is within a range in which a predetermined volume hologram can be formed, and can be appropriately adjusted according to the type of the constituent material described above. . In particular, the thickness of the volume hologram layer used in this step is preferably in the range of 1 μm to 50 μm, and particularly preferably in the range of 3 μm to 25 μm.

b. Color Material Part Next, a color material part used for the above-mentioned image forming intermediate transfer medium will be described. The color material portion used in this process is formed by arranging color material layers in a surface sequence, and in order to print an image on a transferred material by a thermal transfer method in an image printing process in a transferred material printing process described later. It is used for.

The color material part used in this process is composed of a plurality of color material layers arranged in a surface sequence. The color material layer used in this process contains a color material that can be printed by the thermal transfer method. If it does, it will not specifically limit. As such a color material, a pigment or a heat sublimation dye generally used in a thermal transfer method can be used.
Since such a color material is generally the same as that used in the thermal transfer system, description thereof is omitted here.

  In addition to the color materials described above, a fluorescent material that emits fluorescence, or an optically variable material that changes its color depending on the viewing angle can also be used as the color material layer used in this step. By using such a material as a color material, there is an advantage that an image-formed product having an excellent anti-counterfeit function or design can be formed in the present invention.

  The fluorescent material is not particularly limited as long as it can be printed by a thermal transfer method and can emit fluorescence by absorbing light in a desired wavelength range. Especially, as for the fluorescent material used for this process, it is preferable that the absorption wavelength of the ultraviolet-ray for light-emitting fluorescence exists in the range of 100 nm-400 nm, and it is more preferable that it exists in the range of 200 nm-400 nm.

Examples of the fluorescent material used in this step include organic fluorescent materials such as diaminostilbene disulfonic acid derivatives, imidazole derivatives, coumarin derivatives, triazoles, carbazoles, pyridines, naphthalic acid, imidazolone derivatives, etc., fluorescein, eosin and other dyes And compounds having a benzene ring such as anthracene, thiophene, β-quinophthalone, coumarin, bisstyrylbenzene, oxazole, and europium complex. Specifically, as visible and colorless fluorescent dyes, EB-501 (Mitsui Chemicals, Inc., emission color: blue), EG-302 (Mitsui Chemicals, emission color: yellow green), EG -307 (Mitsui Chemicals, Inc., emission color: green), ER-120 (Mitsui Chemicals, emission color: red), ER-122 (Mitsui Chemicals, emission color: red), Examples thereof include Ubitex OB (manufactured by Ciba Geigy Co., Ltd., emission color: blue), europium-thenoyl trifluoroacetone chelate (Sinloihi Co., Ltd., red-orange), which is called a fluorescent brightening agent.
Specific examples of the organic fluorescent material include those described in JP-A-2004-122690.

Inorganic fluorescent dyes are mainly composed of crystals such as oxides such as Ca, Ba, Mg and Sr, sulfides, silicates, phosphates and tungstates, and Eu, Mn, Pb and Fe. , Mn, Zn, Ag, Cu and other metal elements or rare earth elements added as a dopant can be used. Specifically, under the visible light, colorless to white G-300 series (SrAl ₂ O ₄ : Eu, Dy, manufactured by Nemoto Special Chemical, luminescent color: green) and V-300 series (CaAl ₂ O ₄ : Eu, Nd, root special) Chemical emission color: purple).

  On the other hand, the optically variable material is not particularly limited as long as it can be printed by a thermal transfer method. Depending on the type and use of the image formed product produced by the present invention, a desired material can be used. Those that can develop colors can be appropriately selected and used. Examples of such optically variable materials include pearl pigments, polarizing inks, liquid crystal inks, and retroreflective inks. In the present invention, only one type of these optically variable materials may be used, or two or more types may be used.

Examples of the pearl pigment include pearl essence extracted from seafood, basic lead carbonate, lead acid arsenate, bismuth oxychloride, and mica coated with a metal oxide. In the present invention, any of these pearl pigments can be suitably used, but among these, mica coated with a metal oxide is preferable from the viewpoint of safety. Here, titanium oxide and iron oxide are preferably used as the metal oxide because of its gloss and refractive index.
Further, the pearl pigment used in the present invention may be further colored with a pigment, a dye or the like.

  The polarizing ink and the liquid crystal ink mean an ink obtained by mixing a polarizing cholesteric polymer liquid crystal pigment, a binder, a dispersant, and the like. The polarizing cholesteric polymer liquid crystal pigment is applied to a support while a mixed solution of a crosslinkable liquid crystal polyorganosiloxane and a polymerization initiator is aligned by shearing force, etc., and then crosslinked by ultraviolet irradiation or heating to form a crosslinked liquid crystal layer. It can be obtained by peeling from the support and pulverizing with a mill or the like.

  The retroreflective ink is an ink in which particles serving as a reflecting mirror such as glass beads are dispersed in a binder. Such an ink may be used by mixing with other pigment materials such as mica, aluminum powder, and colored pearl pigment.

  The color material part used in this step is formed by arranging a plurality of color material layers in a surface sequence, but is not particularly limited as an aspect in which the color material layer is arranged in the color material part, It can be determined appropriately depending on the type of image-formed product produced by the present invention. As such an arrangement mode, for example, a mode in which color material layers containing dyes of R (red), G (green), and B (blue) are sequentially arranged, C (cyan), M (magenta), Y An example in which color material layers containing dyes of (yellow) and Bk (black) are sequentially arranged can be given.

  In addition, the color material portion used in this step is arranged by combining a plurality of color material layers containing different color materials per panel, and the panel composed of the plurality of color material layers is arranged in a plane order. It may be what was done. This is because an image using a larger number of color materials can be formed in this step.

  Such an image forming intermediate transfer medium will be described with reference to the drawings. FIG. 3 is a schematic cross-sectional view showing an example of an image forming intermediate transfer medium used in this step. As illustrated in FIGS. 3A and 3B, the intermediate transfer medium 10 for image formation used in this step is a panel in which a color material portion is combined with a plurality of color material layers (3a to 3f). Units represented by X in FIG. 3 may be arranged in a frame sequence.

When the color material part used in this step has such a configuration, the number of color material layers arranged per panel is not particularly limited, but is usually in the range of 2 to 8. It is said. Further, the combination of the color material layers in each panel can be appropriately selected and used as a combination capable of forming a desired image according to the type of the image formed product produced according to the present invention, and is particularly limited. It is not a thing. Among them, the combination preferably used in this step includes a combination of a color material layer containing a general heat sublimation dye or pigment and a color material layer containing a fluorescent material. By using such a combination, it becomes possible to simultaneously print an image that is visible with visible light using an intermediate transfer medium for image formation and a fluorescent image that is visible only under ultraviolet irradiation conditions. This is because it is possible to produce an image formed product having a more excellent anti-counterfeit function.
Further, when a combination of a color material layer containing a general heat sublimation dye or pigment and a layer containing a fluorescent material is used as a combination of color material layers in each panel, the color that the pigment develops, and the above The fluorescent color emitted from the fluorescent material is preferably complementary to each other (for example, the color material layer 3a in FIGS. 3A and 3B is made of a pigment, the color material layer 3d is made of a fluorescent material, and It is preferable that the color developed by the pigment and the fluorescence emitted by the fluorescent material have a complementary color relationship.) This makes it possible to form the same image at the same time with the dye and the fluorescent material. This is because it is possible to form an image-formed product having an excellent anti-counterfeit function by the converted process.

c. Substrate Next, the substrate used for the image forming intermediate transfer medium will be described. The base material used in this step has a function of supporting the image receiving portion and the color material portion.

  The substrate used in this step is not particularly limited as long as it can support the image receiving portion and the color material portion. Specific examples of such a substrate include, for example, a polyethylene film, a polypropylene film, a polyvinyl fluoride film, a polyvinylidene fluoride film, a polyvinyl chloride film, a polyvinylidene chloride film, an ethylene-vinyl alcohol copolymer film, and polyvinyl. Alcohol film, polymethyl methacrylate film, polyethersulfone film, polyetheretherketone film, polyamide film, tetrafluoroethylene-perfluoroalkylvinylether copolymer film, polyester film such as polyethylene terephthalate film, resin film such as polyimide film, etc. Can be mentioned.

d. Arbitrary Configuration The image-forming intermediate transfer medium used in this step has at least the above-described base material, image receiving portion and color material portion, but other arbitrary configurations may be used as necessary. Good. Examples of such an arbitrary configuration include a detection mark used for alignment at the time of printing and transfer, and a back layer.

  Here, the back layer used in this step is formed on the base material on the surface opposite to the surface on which the image receiving portion and the color material portion are formed. Prevents thermal heads and heating rolls from fusing when forming images using transfer media, improves slip properties, prevents static charge, increases the rigidity of thermal transfer sheets and prevents expansion and contraction, The image forming apparatus has a function that contributes to easy positioning of the intermediate transfer medium for image formation.

  Such a back layer is made of, for example, a material conventionally used in the field of thermal transfer films, preferably silicone resin, polyvinyl butyral resin, polyvinyl acetoacetal resin, polyester resin, polyether resin, polybutadiene resin, styrene-butadiene. Resin, acrylic polyol, polyurethane acrylate, polyester acrylate, polyether acrylate, epoxy acrylate, urethane or epoxy prepolymer, nitrocellulose resin, cellulose nitrate resin, cellulose acetopropionate resin, cellulose acetate butyrate resin, cellulose acetate hydro Diene phthalate resin, cellulose acetate resin, aromatic polyamide resin, polyimide resin, polyamideimide resin, polycarbonate Sulphonate resins, and chlorinated polyolefin resins.

  In addition, in order to improve the heat resistance of the back layer, the coating strength, and the adhesion to the base sheet, it has a reaction cured product of a thermoplastic resin having a reactive group in the resin and a polyisocyanate, or an unsaturated bond. A reaction product with a monomer or oligomer can be used, and the curing method is not particularly limited, and the curing means is not particularly limited.

  The slipperiness-imparting agent that can be added to or overcoated with the back layer made of these resins includes phosphoric acid ester, silicone oil, graphite powder, silicone-based graft polymer, fluorine-based graft polymer, acrylic silicone graft polymer, and acrylic siloxane. And a silicone polymer such as arylsiloxane, preferably a layer made of a polyol, for example, a polyalcohol polymer compound, a polyisocyanate compound and a phosphate ester compound, and more preferably a filler is added. .

(2) Image Printing Method Next, a method for printing an image on the receiving layer provided in the image forming intermediate transfer medium described above in this step will be described. In this step, as a method for printing an image on the receiving layer, a thermal transfer method using a thermal transfer sheet is used.

  The thermal transfer sheet used in this step is not particularly limited as long as it includes a color material layer capable of printing a desired image on the receiving layer, and a color material layer is formed on a substrate. It is possible to use a thermal transfer sheet having a generally known configuration.

  Here, the method for producing an image-formed product of the present invention is capable of printing an image using a large number of colors in a simple process by printing an image on the receiving layer in this process. As the number of colors to be printed in this step increases, an image forming body on which an image using more colors is formed can be formed. Therefore, it is preferable that the thermal transfer sheet used in this step is provided with a plurality of color material layers, and in particular, a thermal transfer sheet having a base material and a plurality of color material layers formed in the surface order on the base material, It is preferable that the color material layer per panel is capable of transferring a plurality of color materials. This is because an image using a large number of colors has been printed using the method for manufacturing an image formed product of the present invention, but the image formed product can be manufactured.

  When the thermal transfer sheet used in this step has a configuration in which color material layers composed of a plurality of color materials are arranged per panel in this way, the combination of color material layers included in one panel is particularly The present invention is not limited, and any combination can be made depending on the type of image to be printed in the transfer object printing process described later. As such a combination, the same combination described in the section “(1) Image-forming intermediate transfer medium” can be employed.

  The color material layer and the base material of the thermal transfer sheet used in this step are the same as those described in the section “(1) Intermediate transfer medium for image formation”, and thus the description thereof is omitted here. .

  Further, in this step, the method for printing an image on the receiving layer using the thermal transfer sheet is the same as the method generally used for the thermal transfer method, and therefore the description thereof is omitted here.

2. Next, the transferred object printing process used in the present invention will be described. In this image printing step, this step uses an image-forming intermediate transfer medium comprising a receiving layer on which an image has been printed and a transfer target, and a receiving layer transfer step of transferring the receiving layer onto the transfer target; and In this step, an image is formed on the transfer medium by an image printing process in which an image is printed on the transfer medium by thermally transferring the color material from the color material layer of the intermediate transfer medium for image formation to the transfer medium.

(1) Transfer object The transfer object used in this step can be appropriately selected as the transfer object used in this step according to the type and application of the image formed product produced by the present invention. There is no particular limitation. Examples of such a member to be transferred include paper used for booklets and gift certificates, various cards, films, cloths, and the like.

(2) Receiving Layer Transfer Process Next, the receiving layer transfer process used in this process will be described. This step is a step of transferring the receiving layer on the intermediate transfer medium for image formation, on which an image has been printed by the receiving layer printing step, onto the transfer target.

  In this step, the method for transferring the receptor layer onto the transfer target is not particularly limited as long as it is a method capable of transferring a predetermined part or all of the receptor layer onto the transfer target. A transfer-substance adhesion step in which an image-forming intermediate transfer medium having a receiving layer on which the image is printed is used, and a transfer-substance is adhered to the receptor layer of the image-forming intermediate transfer medium; and the image-forming intermediate And a substrate peeling step for peeling the substrate of the transfer medium.

  The method for adhering the transfer object onto the receiving layer in the transfer object adhering step is not particularly limited as long as it is a method capable of adhering the receiving layer to a predetermined position of the transfer object. A method of adhering the transferred object by heating the receiving layer is used. The means for heating the heat seal layer in this step is not particularly limited as long as only a desired region can be heated to a predetermined temperature. Examples of the method include a method using a heating roller, a thermal head, a hot press, a hot stamp, and the like. Any of these heating means can be suitably used in this step.

  In addition, the method for peeling the substrate in the substrate peeling step is not particularly limited as long as the method can peel the substrate only in the region bonded to the transfer target. Usually, a method is used in which the image-forming intermediate transfer medium is peeled off by physically pulling it away from the transfer target.

(3) Image Printing Process Next, the image printing process will be described. This step is a step of forming an image on the transfer target body by transferring the color material from the color material portion included in the image transfer intermediate transfer medium using a thermal transfer method using the image transfer intermediate transfer medium.
Here, the method for printing an image on the transfer medium in this step is the same as the general thermal transfer method except that the above-described intermediate transfer medium for image formation is used, and thus the description thereof is omitted here. .

(4) Others As described above, this step includes the above-described receiving layer transfer step and the above-mentioned image printing step, but the order of performing these steps in this step is not particularly limited.
Therefore, after the receiving layer transfer step is performed and the receiving layer is transferred onto the transfer target, the image may be printed on the transfer target by the image printing step, or the image printing step is performed. Then, after the image is printed on the transfer target, the receiving layer may be transferred onto the transfer target by the receiving layer transfer step.

3. Method for producing image-formed product The method for producing an image-formed product of the present invention comprises the above-described receiving layer printing step and transferred object printing step, and the embodiment for carrying out these steps in the present invention is particularly preferred. It is not limited. As such an embodiment, the receiving layer printing process and the transferred object printing process may be separately performed in this order, or the receiving layer printing process and the transferred object printing process are the same. The aspect implemented continuously in a process may be sufficient. In particular, in the present invention, the latter embodiment is preferable.

  The method for producing an image-formed product of the present invention will be described with reference to the drawings, in which the receiving layer printing step and the transferred object printing step are successively carried out in the same step. FIG. 4 is a schematic view showing an example of the case where the method for producing an image-formed product of the present invention is carried out in such a manner. As illustrated in FIG. 4, in the method for producing an image-formed product of the present invention, the image-forming intermediate transfer medium 10 is formed on a long length and continuously fed out (a) and received in the above-described manner. An intermediate transfer medium for image formation that has been used after the layer printing step (b) is performed, and then the transferred object printing step is continuously performed using the transferred material 20 (c) to produce an image formed product. It is preferable to implement in a mode that winds up.

  The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.

<Intermediate transfer medium for image formation>
Using a polyethylene terephthalate film with a thickness of 6 μm and easy-adhesion treatment, a back layer with a thickness of 1 μm is provided on the opposite side of the easy-adhesion treatment surface by gravure printing, and yellow ink and magenta with the following composition on the easy-adhesion treatment surface Ink, cyan ink, releasable protective layer ink and receptive layer ink composition in this order along the flow direction of the polyester film (release layer, releasable protective layer and receptive layer are laminated on the substrate) Then, the gravure printing was repeated repeatedly in the order of 10 cm in length, and dried to form three color sublimable color material layers and an image receiving portion, thereby obtaining an image forming intermediate transfer medium. At this time, the coating amount of each color material layer, respectively with about 3 g / ^{m 2} (solid content), the release layer of about 1 g / ^{m 2} (solid content), a release layer protective layer is about 1.5 g ^{/ m} 2 ( Solid content) and the receiving layer were about 2.5 g / m ² (solid content).

(Yellow ink composition)
・ Quinophthalone dye represented by the following structural formula 3.5 parts by weight ・ Polyvinyl butyral (Eslex BX-1, manufactured by Sekisui Chemical Co., Ltd.)
4.5 parts by weight • 90 parts by weight of methyl ethyl ketone / toluene (1/1)

  In the above formula, n represents a normal system.

(Magenta ink composition)
A magenta ink was obtained in the same manner as in the above yellow ink, except that the dye was replaced with C.I. Disperse Red 60.

(Cyan ink composition)
A cyan ink was obtained in the same manner as in the above yellow ink except that the dye was replaced with C.I. Solvent Blue 63.

(Release layer ink composition)
-Urethane resin (Chrisbon 9004, manufactured by DIC): 20 parts by weight-Polyvinylacetoacetal resin (KS-5, manufactured by Sekisui Chemical Co., Ltd.):
5 parts by weight-Dimethylformamide: 80 parts by weight-Methyl ethyl ketone: 120 parts by weight

(Release layer ink composition)
Acrylic resin (Dianar BR-85, manufactured by Mitsubishi Rayon) 20 parts by weight Polyethylene wax 3 parts by weight Toluene / methyl ethyl ketone 80 parts by weight

(Ink composition for receiving layer)
・ Vinyl chloride-vinyl acetate copolymer (Solvain CNL, manufactured by Nissin Chemical Industry Co., Ltd.) 20 parts by weight ・ Epoxy-modified silicone oil (X-22-3000T, manufactured by Shin-Etsu Chemical Co., Ltd.) 5 parts by weight ・ Methyl ethyl ketone / Toluene (1/1) 80 parts by weight

<Back layer coating liquid>
-Polyvinyl butyral resin (ESREC BX-1, manufactured by Sekisui Chemical Co., Ltd.):
3.6 parts by weight Polyisocyanate (Bernock D750, manufactured by Dainippon Ink & Chemicals, Inc.):
8.6 parts by weight Phosphate ester surfactant (Price Surf A208S, manufactured by Daiichi Pharmaceutical Co., Ltd.): 2.8 parts by weight Talc (Microace P-3, manufactured by Nippon Talc Industry Co., Ltd.): 0.7 parts by weight-Methyl ethyl ketone: 32 parts by weight-Toluene: 32 parts by weight

(1) Thermal transfer sheet example 1
Using a polyethylene terephthalate film with a thickness of 4.5 μm that has been subjected to one-side easy adhesion treatment, the above back layer with a thickness of 1 μm is provided on the side opposite to the easy adhesion treatment surface by gravure printing, and the following composition is formed on the easy adhesion treatment surface: Red ink, green ink, and blue ink were provided in the surface order by gravure printing. The coating amount of each ink layer was 1 g / m ² .

<Sublimation type fluorescent color transfer layer coating liquid (red)>
Organic red fluorescent agent (LC-0001, Nippon Kayaku Co., Ltd.): 2 parts by weight Polyvinyl acetal resin (Sekisui Chemical Co., Ltd.): 5 parts by weight Methyl ethyl ketone: 60 parts by weight Toluene: 20 Parts by weight ・ Isopropanol: 10 parts by weight

<Sublimation type fluorescent color transfer layer coating solution (green)>
-Organic green fluorescent agent (Mitsui Chemicals Co., Ltd.): 1 part by weight-Polyvinyl acetal resin (Sekisui Chemical Co., Ltd.): 5 parts by weight-Methyl ethyl ketone: 60 parts by weight-Toluene: 20 parts by weight-Isopropanol: 10 parts by weight

<Sublimation type fluorescent color transfer layer coating solution (Blue)>
Organic blue fluorescent agent (Ubitex OB, manufactured by Ciba Specialty Chemicals): 1 part by weight Polyvinyl acetal resin (Sekisui Chemical Co., Ltd.): 5 parts by weight Methyl ethyl ketone: 60 parts by weight Toluene: 20 parts by weight・ Isopropanol: 10 parts by weight

(2) Thermal transfer sheet example 2
Using a polyethylene terephthalate film having a thickness of 6 μm that has been subjected to one-side easy adhesion treatment, the back layer having a thickness of 1 μm is provided on the side opposite to the easy adhesion treatment surface, and the release layer (1 g) described above is formed on the easy adhesion treatment surface. / M ² (solid content)), and red ink, green ink, blue ink, and black ink having the following composition were provided in the surface order. The coating amount of the ink layer was about 1 g / m ² (solid content).

<Inorganic melt type fluorescent color transfer layer coating liquid (red)>
Inorganic red fluorescent agent (Y ₂ O ₃ : Eu): 0.5 part by weightVinyl chloride-vinyl acetate copolymer resin (Solvine CNL, manufactured by Nissin Chemical Industry Co., Ltd.): 100 parts by weightToluene: 150 parts by weight ・ Methyl ethyl ketone: 150 parts by weight

<Inorganic melt type fluorescent color transfer layer coating solution (green)>
-Inorganic green fluorescent agent (ZnS: Cu, Al): 0.5 part by weight-Vinyl chloride-vinyl acetate copolymer resin (Solvine CNL, manufactured by Nissin Chemical Industry Co., Ltd.): 100 parts by weight-Toluene: 150 Parts by weight ・ Methyl ethyl ketone: 150 parts by weight

<Inorganic melt type fluorescent color transfer layer coating solution (blue)>
Inorganic blue fluorescent agent (Ca ₂ B ₅ O ₉ Cl: Eu ²⁺ ): 0.5 part by weight Vinyl chloride-vinyl acetate copolymer resin (Solvine CNL, manufactured by Nissin Chemical Industry Co., Ltd.): 100 Part by weight-Toluene: 150 parts by weight-Methyl ethyl ketone: 150 parts by weight

<Coating liquid for hot melt black ink layer>
-Vinyl chloride-vinyl acetate copolymer resin solution (Solvine CNL, manufactured by Nissin Chemical Industry Co., Ltd.): 20 parts by weight-Carbon black: 10 parts by weight-Methyl ethyl ketone / toluene (weight ratio 1/1): 70 parts by weight

(3) Image formation An image-formed product was prepared using the image-forming intermediate transfer medium and thermal transfer sheet examples 1 and 2. As an image forming method, first, the thermal transfer sheet example 1 or 2 is used for the receiving layer portion of the image-forming intermediate transfer medium, and the thermal head is used for fluorescent color materials (sublimation type in the thermal transfer sheet example 1 and thermal transfer sheet example 2). In this case, the melt type was thermally transferred to form an image. Subsequently, the intermediate transfer medium for image formation formed on the receiving layer is transported, and image formation (face image, etc.) is performed on the card with dye ink. The protective layer was transferred together. The obtained image formed product had both an image (face image and the like) that can be visually recognized with visible light and a fluorescent image that can be confirmed by irradiating ultraviolet rays such as black light. Further, when Example 2 of the thermal transfer sheet was used, since there was a black thermal transfer layer of the melt transfer type, characters, figures, barcodes, etc. were clearly transferred.

It is the schematic which shows an example of the manufacturing method of the image formed material of this invention. FIG. 2 is a schematic view showing an example of an intermediate transfer medium for image formation used in the present invention. FIG. 6 is a schematic view showing another example of an intermediate transfer medium for image formation used in the present invention. It is the schematic which shows an example of the aspect which enforces the manufacturing method of the image formation of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base material 2, 2 '... Image receiving part 2a ... Peelable protective layer 2b ... Receiving layer 3 ... Color material part 3a, 3b, 3c, 3d, 3e, 3f ... Color material layer 10, 10' ... For image formation Intermediate transfer medium 20 ... Transfer object 30 ... Hot spot transfer sheet A ... Thermal head

Claims (2)

A base material, an image receiving portion formed on the base material and having a configuration in which a peelable protective layer and a receiving layer are laminated in this order, and formed adjacent to the image receiving portion, arranged in a plane order. Using an intermediate transfer medium for image formation having a color material portion composed of a plurality of color material layers,
A receiving layer printing step for printing an image on the receiving layer of the intermediate transfer medium for image formation using a thermal transfer sheet;
A receiving layer transfer step of transferring the receiving layer on which the image has been printed on the transfer body, using an intermediate transfer medium for image formation and a transfer body having the receiving layer on which the image has been printed in the image printing step; and The transferred body for forming an image on the transferred body by an image printing process in which an image is printed on the transferred body by thermally transferring the color material from the colored material layer of the intermediate transfer medium for image formation to the transferred body. and the printing step, possess,
The thermal transfer sheet has a base material and a plurality of color material layers formed in the surface order on the base material, and a plurality of color material layers containing different color materials per panel are arranged. A method for producing an image-formed product. 2. The method for producing an image-formed product according to claim 1 , wherein a hologram layer in which a hologram is recorded is formed between the peelable protective layer and the receiving layer in the image receiving portion.

Images