JP5382190B2 - Hologram transfer foil and hologram laminate - Google Patents

Description

  The present invention relates to a hologram layer transfer foil used for producing a hologram laminate by transferring a hologram layer to a transfer medium, and a hologram laminate.

  A hologram is the one where the wavefront of object light is recorded on the photosensitive material as interference fringes by interfering two lights with the same wavelength (object light and reference light), and the same wavelength as the reference light at the time of interference fringe recording When the light is applied, a diffraction phenomenon occurs due to interference fringes, and the same wavefront as that of the original object light can be reproduced. Holograms are widely used for security applications and the like because they have advantages such as beautiful appearance and relatively difficult replication. In particular, in plastic cards represented by credit cards, cash cards, and the like, hologram-attached cards have been widely used mainly from the viewpoint of preventing duplication and imparting design properties.

  Such holograms can be classified into several types depending on the recording pattern of interference fringes, but typically can be classified into surface relief holograms and volume holograms. Here, the surface relief hologram is a hologram recorded by forming a fine uneven pattern on the surface of the hologram layer. On the other hand, the volume hologram is a hologram recorded by three-dimensionally drawing interference fringes generated by light interference as stripes having different refractive indexes in the thickness direction. Among these, since the volume hologram is a hologram image recorded by the difference in refractive index of the material, it has the advantage that it is difficult to duplicate compared to the relief hologram, so that securities and cards can be used. It is expected to be used as an anti-counterfeiting measure.

  Further, in the case of using a hologram as a design imparting or forgery prevention means, etc., as a method for imparting a hologram to securities, cards, etc., for example, a method of weaving a slit-shaped hologram or a hologram visible from the outside As described above, a method of embedding in a medium is known. Generally, a method of attaching a hologram at a predetermined position is used. Among them, as a simple method, a method of sticking a hologram at a predetermined position by transferring a hologram from a hologram transfer foil in which a hologram is formed on an arbitrary base material has been widely used.

  Here, the hologram transfer foil has a configuration in which a hologram layer in which a hologram is recorded on a base material and a heat seal layer having thermal adhesiveness are laminated in this order, and the heat seal layer The hologram layer has a function of transferring the hologram layer onto the transfer medium. Such a hologram transfer foil is disclosed in Patent Documents 1 and 2, for example.

  By the way, the hologram has been conventionally used for various purposes as an anti-counterfeiting means because it has been difficult to duplicate. However, in recent years, a technique for simply duplicating a hologram has begun to spread. It has been pointed out that the use of only is not sufficient as a means for preventing forgery. For this reason, the hologram transfer foil is also required to have a higher anti-counterfeit function and to transfer a hologram with excellent security.

JP 2003-316239 A Japanese Patent Laid-Open No. 2005-3809

  This invention is made | formed in view of such a condition, and it aims at providing the hologram transfer foil which can produce a hologram laminated body with a high forgery prevention function.

  In order to solve the above problems, the present invention provides a base material, an image forming layer formed on the base material and having an image formed thereon, a hologram layer formed on the image forming layer and having a hologram recorded thereon, And a heat transfer layer formed on the hologram layer and containing a thermoplastic resin.

According to the hologram transfer foil of the present invention, since the image forming layer is used in addition to the hologram layer, the hologram layer is formed when a hologram laminate is produced using the hologram transfer foil of the present invention. Can be transferred together with the image forming layer, so that a hologram laminate having an excellent anti-counterfeit function can be produced.
Further, according to the present invention, since the image forming layer is formed between the hologram layer and the substrate, image formation is performed when a hologram laminate is manufactured using the hologram transfer foil of the present invention. It is possible to prevent the layer and the transferred object from coming into contact with each other. For this reason, for example, the image of the image forming layer is not deteriorated by the action of the compound used in the transferred material, and a hologram laminate having excellent durability of the image forming layer can be produced. .
Therefore, according to the present invention, it is possible to provide a hologram transfer foil capable of producing a hologram laminate having a high anti-counterfeit function.

  In the present invention, it is preferable that an image formed on the image forming layer and a hologram image recorded on the hologram layer overlap at least partially. In the hologram laminate produced by using the hologram transfer foil of the present invention, the hologram formed in the image forming layer and the hologram image recorded in the hologram layer partially overlap. This is because a so-called indexed state is obtained by the above image, so that a hologram laminate having a more excellent anti-counterfeit function can be obtained.

  In the present invention, the image forming layer is preferably a fluorescent image forming layer in which an image is formed by a fluorescent material that emits fluorescence by absorbing ultraviolet rays. By using such a fluorescent image forming layer as the image forming layer, it is possible to prevent the presence of the image forming layer from being easily seen from the outside unless irradiated with ultraviolet rays or the like. This is because a hologram laminate having a more excellent anti-counterfeit function can be produced using the hologram transfer foil of the invention.

  In the present invention, the image forming layer is preferably an optically variable image forming layer in which an image is formed of an optically variable material whose color changes depending on the viewing angle. By using such an optically variable image forming layer as the image forming layer, a hologram laminate having a further excellent anti-counterfeit function can be produced using the hologram transfer foil of the present invention. Because it becomes.

  In the present invention, a peelable protective layer is preferably formed between the hologram layer and the substrate. Since the peelable protective layer is formed, the adhesion between the substrate and the hologram layer can be adjusted. As a result, the hologram layer is transferred from the hologram transfer foil of the present invention to produce a hologram laminate. This is because the detachability of the hologram layer can be improved. Further, when the hologram laminate is produced using the hologram layer transfer foil of the present invention, the peelable protective layer is transferred together with the hologram layer, so that the transferred hologram layer is protected by the peelable protective layer. Because it can be done.

  In the present invention, it is preferable that the peelable protective layer is formed between the hologram layer and the image forming layer, and the peelable protective layer contains an ultraviolet absorber. Thus, when a hologram laminate is produced using the hologram transfer foil of the present invention, the visibility of the image of the image forming layer can be prevented from being obstructed by the peelable protective layer, and the above-mentioned hologram can be prevented by the peelable protective layer. This is because the layer can be prevented from being deteriorated by ultraviolet rays over time.

  The present invention relates to a transfer object, a heat seal layer formed on the transfer object and containing a thermoplastic resin, a hologram layer formed on the heat seal layer and having a hologram recorded thereon, and the hologram layer And a hologram layered body having an image forming layer on which an image is formed.

According to the present invention, by using the image forming layer in addition to the hologram layer, it is possible to obtain a hologram laminate having a more excellent anti-counterfeit function.
Further, according to the present invention, since the image forming layer is formed on the hologram layer, it is possible to prevent the image forming layer and the transfer target from coming into contact with each other. For this reason, for example, the image of the image forming layer is not deteriorated by the action of the compound used in the transferred material, and a hologram laminate having excellent durability of the image forming layer can be obtained.

  The present invention has an effect of providing a hologram transfer foil capable of producing a hologram laminate having a high function of preventing forgery.

It is a schematic sectional drawing which shows an example of the hologram transfer foil of this invention. It is a schematic sectional drawing which shows the other example of the hologram transfer foil of this invention. It is the schematic which shows an example of the manufacturing method of the hologram transfer foil of this invention. It is a schematic sectional drawing which shows an example of the hologram laminated body of this invention. It is a schematic sectional drawing which shows the other example of the hologram laminated body of this invention. It is a schematic sectional drawing which shows an example of the manufacturing method of the hologram laminated body of this invention. It is the schematic which shows the other example of the hologram transfer foil of this invention. It is a schematic sectional drawing which shows the other example of the hologram transfer foil of this invention. It is the schematic which shows the specific example of the to-be-transferred body used for this invention, and the hologram laminated body of this invention.

The present invention relates to a hologram transfer foil and a hologram laminate.
Hereinafter, the hologram transfer foil and the hologram laminate of the present invention will be described in order.

A. Hologram Transfer Foil First, the hologram transfer foil of the present invention will be described. The hologram transfer foil of the present invention includes a base material, an image forming layer formed on the base material and having an image formed thereon, a hologram layer formed on the image forming layer and having a hologram recorded thereon, and the hologram It has a heat seal layer formed on the layer and containing a thermoplastic resin.

  Such a hologram transfer foil of the present invention will be described with reference to the drawings. FIG. 1 is a schematic sectional view showing an example of a hologram transfer foil of the present invention. As illustrated in FIG. 1, the hologram transfer foil 10 of the present invention is formed on a base material 1, an image forming layer 2 formed on the base material 1 and having an image formed thereon, and the image forming layer 2. And a hologram layer 3 on which a hologram is recorded, and a heat seal layer 4 formed on the hologram layer 3 and containing a thermoplastic resin.

According to the hologram transfer foil of the present invention, since the image forming layer is used in addition to the hologram layer, the hologram layer is formed when a hologram laminate is produced using the hologram transfer foil of the present invention. Can be transferred together with the image forming layer, so that a hologram laminate having a more excellent anti-counterfeit function can be produced.
Further, according to the present invention, since the image forming layer is formed between the hologram layer and the substrate, image formation is performed when a hologram laminate is manufactured using the hologram transfer foil of the present invention. It is possible to prevent the layer and the transferred object from coming into contact with each other. For this reason, for example, the image of the image forming layer is not deteriorated by the action of the compound used in the transferred material, and a hologram laminate having excellent durability of the image forming layer can be produced. .
Therefore, according to the present invention, it is possible to provide a hologram transfer foil capable of producing a hologram laminate having a high anti-counterfeit function.

The hologram transfer foil of the present invention has at least a base material, an image forming layer, a hologram layer, and a heat seal layer, and any other configuration may be used as necessary. .
Hereafter, each structure used for the hologram transfer foil of this invention is demonstrated in order.

1. Image Forming Layer First, the image forming layer used in the present invention will be described. The image forming layer used in the present invention has an image formed thereon and is formed at least between the hologram layer and the substrate.

The image forming layer used in the present invention is not particularly limited as long as a desired image is formed. Depending on the use of the hologram laminate produced using the hologram transfer foil of the present invention. A material in which an image is formed of an arbitrary material can be used.
Here, the image formed on the image forming layer used in the present invention can be a desired image according to the use of the hologram laminate produced using the hologram transfer foil of the present invention. The “image” in the present invention includes not only a pattern, a line drawing, a character, a figure, a symbol, etc., but also a mode in which the entire surface is simply colored.

  The image forming layer used in the present invention preferably has a thickness in the range of 0.1 to 50 μm, and more preferably in the range of 0.5 to 20 μm. When the thickness is thicker than the above range, the uneven shape formed on the surface of the hologram laminate produced using the hologram transfer foil of the present invention becomes large, or the design properties of the hologram laminate are impaired, or This is because the durability of the image forming layer may be reduced. Further, if it is thinner than the above range, the storage stability of the image formed in the image forming layer may be impaired.

Examples of the image forming layer used in the present invention include, for example, a fluorescent image forming layer in which an image is formed by a fluorescent material that emits fluorescence by absorbing ultraviolet light, and an optical variable material whose color changes depending on the viewing angle. An optically variable image forming layer on which is formed. In the present invention, any of these image forming layers can be suitably used, and among these, the fluorescent image forming layer and the optically variable image forming layer are preferably used. The reason is as follows.
That is, by using the fluorescent image forming layer, the presence of the image forming layer can be easily prevented from being visually recognized from the outside. Therefore, the hologram transfer foil of the present invention is used to provide a better anti-counterfeit function. This is because the hologram laminate can be produced.
In addition, since the image produced with the optically variable material cannot be duplicated with ordinary ink, the use of the optically variable image forming layer further enhances the anti-counterfeit function. This is because a body can be produced.
Hereinafter, the optically variable image forming layer and the fluorescent image forming layer used in the present invention will be described in detail.

(1) Optically variable image forming layer First, the optically variable image forming layer used in the present invention will be described. The optically variable image forming layer used in the present invention has an image formed of an optically variable material. The optically variable material used in the present invention is not particularly limited as long as it can express a desired color. 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.

(2) Fluorescence image formation layer Next, the fluorescence image formation layer used for this invention is demonstrated. The fluorescent image forming layer used in the present invention has an image formed by a fluorescent material that emits fluorescence by absorbing ultraviolet rays. The fluorescent material used in the present invention is not particularly limited as long as it can emit fluorescence by absorbing ultraviolet rays having a desired wavelength.

  At least one type of fluorescent material used in the present invention is used. In this step, it is preferable to use a plurality of fluorescent materials having different wavelengths of emitted fluorescence, and in particular, each color of red, green, and blue is used. It is preferable to use a fluorescent material that develops color. This is because it is possible to form a full-color image with fluorescence on the image forming layer used in the present invention.

Examples of the fluorescent material used in the present invention include organic fluorescent dyes and inorganic fluorescent dyes as fluorescent materials used in the present invention.
Examples of the organic fluorescent dye include diaminostilbene disulfonic acid derivatives, imidazole derivatives, coumarin derivatives, derivatives such as triazole, carbazole, pyridine, naphthalic acid, imidazolone, dyes such as fluorescein and eosin, anthracene, etc. And a compound having a benzene ring. 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), Ubitex OB (manufactured by Ciba Specialty Chemicals Co., Ltd., emission color: blue), europium-thenoyl trifluoroacetone chelate (Sinloihi Co., Ltd., red-orange) and the like, which are called fluorescent brighteners, can be mentioned.
As the inorganic fluorescent dye, the inorganic fluorescent dye is mainly composed of crystals such as oxides such as Ca, Ba, Mg, and Sr, sulfides, silicates, phosphates, and tungstates. , Eu, Mn, Pb, Fe, Mn, Zn, Ag, Cu, or 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).

  Examples of the fluorescent material used in the present invention include thiophene fluorescent dyes, β-quinophthalone fluorescent dyes, coumarin fluorescent dyes, bisstyrylbenzene fluorescent dyes, oxazole fluorescent dyes, and europium complex fluorescent dyes. Can be mentioned. Specific examples of these fluorescent dyes include those described in JP-A No. 2004-122690.

  In addition, it is preferable that the fluorescent image forming layer used in the present invention usually contains a binder resin in addition to the fluorescent material. Examples of the binder resin used in the present invention include cellulose resins such as ethyl cellulose, ethyl hydroxy cellulose, hydroxypropyl cellulose, methyl cellulose, and cellulose acetate; vinyls such as polyvinyl alcohol, polyvinyl acetate, polyvinyl butyral, polyvinyl acetal, and polyvinyl pyrrolidone. Examples thereof include acrylic resins, acrylic resins such as poly (meth) acrylate and poly (meth) acrylamide, polyurethane resins, polyamide resins, polyester resins, and mixtures of these resins. In the present invention, any of these resins can be suitably used.

2. Hologram Layer Next, the hologram layer used in the present invention will be described. The hologram layer used in the present invention is one on which a hologram is recorded, and is transferred to a transfer target when a hologram laminate is manufactured using the hologram layer transfer foil of the present invention.
Hereinafter, such a hologram layer will be described in detail.

The hologram layer used in the present invention is not particularly limited as long as a hologram is recorded. Depending on the use of the hologram laminate manufactured using the hologram transfer foil of the present invention, a predetermined layer is used. A hologram layer in which various types of holograms are recorded can be used. In particular, in the present invention, a volume hologram layer in which a volume hologram is recorded or a relief hologram layer in which a relief hologram is recorded is usually used.
Therefore, the volume hologram layer and the relief hologram layer used in the present invention will be described in order below.

2-1 Volume Hologram Layer (1) Constituent Material The material constituting the volume hologram layer used in the present invention is not particularly limited as long as it can record a volume hologram, and is generally not limited. Any material used for volume holograms can be used. 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.

(Binder resin)
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 the present invention has a relatively low glass transition temperature and can easily move the monomer.

(Photopolymerizable compound)
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.

(Photopolymerization initiator)
Examples of the photopolymerization initiator used in the present invention 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 the present invention 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 dye)
Sensitizing dyes used in the present invention 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 the present invention 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.

(Cationically polymerizable compound)
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.

(Radically polymerizable compound)
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 the present invention 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 the present invention 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.

(Photo radical polymerization initiator system)
As the radical photopolymerization initiator system used in the present invention, 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 range by being left exposed for several hours to several days under post-exposure or indoor light or sunlight in the present invention. 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. .

(Photocationic polymerization initiator system)
The cationic photopolymerization initiator system used in the present invention 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 the present invention, 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.

(Measurement method of refractive index)
Here, the refractive index of the resin obtained by adding a photocationic polymerization initiator to the cationic polymerizable compound can be measured as follows. That is, a resin obtained by adding a photocationic polymerization initiator to the above cationic polymerizable compound to a surface release-treated PET film (for example, trade name “SP-PET” 50 μm, manufactured by Tosero Co., Ltd.) The coating is applied to a thickness of about 20 μm, thermally dried, and then cured by irradiation with ultraviolet rays. Next, the surface release treated PET film is peeled from the layer of the cationic polymerizable compound + photo cationic polymerization initiator / surface release treatment PET film to produce a single layer of the cationic polymerizable compound + photo cationic polymerization initiator. . Monobromonaphthalene as a refractive index compensation solution using a monolayer of the cationic polymerizable compound + photo cationic polymerization initiator prepared as described above, using a refractive index measuring device (manufactured by Atago Co., Ltd., multiwavelength Abbe refractometer DR-M4). Is used to measure the refractive index at a measurement wavelength of 589 nm.
In addition, also about resin obtained by adding radical photopolymerization initiator to a radically polymerizable compound, a refractive index can be measured by the method similar to the above.

(Other)
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.

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

2-2: Relief Hologram Layer As the relief hologram layer used in the present invention, a known hologram layer in which a relief hologram is generally recorded can be used. As such a relief hologram layer, for example, a hologram original image is exposed to a photoresist to produce an uneven relief surface, and this is used as a master to synthesize a die obtained by nickel plating on the relief surface. An example is one in which an uneven hologram image is formed by heating and pressing in accordance with a hologram forming layer made of a resin or the like.

3. Next, the heat seal layer used in the present invention will be described. The heat seal layer used in the present invention contains a thermoplastic resin, and has a function of adhering the hologram layer and the transfer object when a hologram laminate is manufactured using the hologram transfer foil of the present invention. Is.
Hereinafter, the heat seal layer used in the present invention will be described in detail.

  The thermoplastic resin used in the present invention is not particularly limited as long as it can adhere the hologram layer and the transferred object depending on the type of the transferred object onto which the hologram layer is transferred from the hologram transfer foil of the present invention. It is not something. Examples of such thermoplastic resins include maleic acid-modified vinyl chloride-vinyl acetate copolymer resins, ethylene-vinyl acetate copolymer resins, vinyl chloride-vinyl acetate copolymer resins, polyamide resins, polyester resins, polyethylene resins, ethylene -Isobutyl acrylate copolymer resin, butyral resin, polyvinyl acetate and its copolymer resin, ionomer resin, acid-modified polyolefin resin, acrylic / methacrylic (meth) acrylic resin, acrylic ester resin, ethylene・ (Meth) acrylic acid copolymer, ethylene / (meth) acrylic ester copolymer, polymethyl methacrylate resin, cellulose resin, polyvinyl ether resin, polyurethane resin, polycarbonate resin, polypropylene resin, epoxy resin, Nord resin, vinyl resin, maleic 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 Examples thereof include a block copolymer (SIS), a styrene ethylene butylene styrene block copolymer (SEBS), and a styrene ethylene propylene styrene block copolymer (SEPS). In the present invention, any of these thermoplastic resins can be suitably used.

  In addition, the thermoplastic resin used for this invention may be only 1 type, or 2 or more types may be sufficient as it.

  The heat seal layer used in the present invention may contain other additives in addition to the thermoplastic resin. Examples of the additive used in the present invention include a dispersant, a filler, a plasticizer, and an antistatic agent.

  The thickness of the heat seal layer used in the present invention is not particularly limited, and is appropriately selected depending on the type of hologram layer foil, the type of transferred material onto which the hologram layer is transferred using the hologram transfer foil of the present invention, and the like. In general, it is preferably within a range of 0.3 to 50 μm, and more preferably within a range of 0.5 to 25 μm. This is because if the thickness is less than the above range, the adhesiveness to the transferred object may be insufficient. On the other hand, if it is thicker than the above range, when transferring the hologram layer from the hologram transfer foil of the present invention, the temperature for heating the heat seal layer becomes too high, and the substrate or the like may be damaged. Because.

4). Next, the substrate used in the present invention will be described. The base material used in the present invention has a function of supporting the above-described image forming layer, hologram layer, and heat seal layer.

  The substrate used in the present invention is not particularly limited as long as it can support the hologram layer and the heat seal layer. 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.

  Further, the thickness of the substrate used in the present invention is appropriately selected according to the use or type of the hologram laminate produced according to the present invention, but is usually 2 μm to 200 μm, preferably 10 μm to 50 μm. Within range.

5. Arbitrary Configuration The hologram transfer foil of the present invention has at least the substrate, the image forming layer, the hologram layer, and the heat seal layer, but any other configuration other than these may be used as necessary. it can. The arbitrary structure used for this invention is not specifically limited, According to the use etc. of the hologram laminated body manufactured using the hologram transfer foil of this invention, it can select suitably and can be used. Among these, as an arbitrary configuration suitably used in the present invention, a peelable protective layer formed between the substrate and the hologram layer can be exemplified.

The case where a peelable protective layer is used for the hologram transfer foil of the present invention will be described with reference to the drawings. FIG. 2 is a schematic cross-sectional view showing an example where a peelable protective layer is used in the hologram transfer foil of the present invention. As illustrated in FIG. 2, in the hologram transfer foil 10 ′ of the present invention, a peelable protective layer 5 may be formed between the substrate 1 and the hologram layer 3.
Here, as an aspect in which the peelable protective layer 5 is formed, even if it is formed between the hologram layer 3 and the image forming layer 2 as illustrated in FIG. Alternatively, as illustrated in FIG. 2B, an embodiment in which the image forming layer 2 and the substrate 1 are formed may be employed.

By using the peelable protective layer for the hologram transfer foil of the present invention, advantageous effects can be obtained in the following two points.
First, when the peelable protective layer is used, the adhesive force between the base material and the hologram layer can be adjusted to an arbitrary range. Therefore, when transferring the hologram layer from the hologram transfer foil of the present invention, Furthermore, the peelability of the hologram layer from the base material can be improved.
Secondly, by using the peelable protective layer, the surface of the hologram layer can be covered with the peelable protective layer when the hologram layer is transferred to the transfer object using the hologram transfer foil of the present invention. Therefore, the transferred hologram layer can be protected by the peelable protective layer.

  Examples of the material used for the peelable protective layer used in the present invention include acrylic and methacrylic resins such as polymethyl acrylate and polymethyl methacrylate, polyvinyl chloride resin, cellulose resin, silicone resin, chlorinated rubber, casein, Examples include various surfactants, metal oxides, or a mixture of two or more.

  Further, the peelable protective layer used in the present invention preferably contains an ultraviolet absorber. This is based on the following reason. That is, when the peelable protective layer is formed, in the hologram laminate produced using the hologram transfer foil of the present invention, the peelable protective layer is disposed on the hologram layer. Here, since the photopolymerizable material is used for the hologram layer as described above, there is a problem that the hologram layer deteriorates with time when the hologram layer is irradiated with ultraviolet rays. However, when the peelable protective layer disposed on the hologram layer contains an ultraviolet absorber, it is possible to prevent such ultraviolet deterioration of the hologram layer.

  When the above-described fluorescent image forming layer is used as the image forming layer, the fluorescent image forming layer has a function of expressing an image when irradiated with ultraviolet rays. If an ultraviolet absorber is contained in the image, the expression of the image may be inhibited. Therefore, when the fluorescent image forming layer is used, the ultraviolet absorber may be contained only when the peelable protective layer is formed between the hologram layer and the image forming layer. preferable.

  The ultraviolet absorber used in the present invention is not particularly limited as long as it can absorb ultraviolet rays having a desired wavelength. Examples of such UV absorbing materials include organic UV absorbers, reactive UV absorbers, and inorganic UV absorbers.

  Examples of the organic ultraviolet absorber include salicylate, benzophenone, benzotriazole, substituted acrylonitrile, nickel chelate, and hindered amine ultraviolet absorbers.

  Examples of the reactive ultraviolet absorber include the above organic ultraviolet absorbers, for example, an addition polymerizable double bond such as a vinyl group, an acryloyl group, and a methacryloyl group, or an alcoholic hydroxyl group, an amino group, a carboxyl group, an epoxy group, and an isocyanate. A group into which a group or the like has been introduced is reacted and fixed to a resin binder. As a method for reaction fixation, a copolymer is obtained by radical polymerization of a resin component of a conventionally known monomer, oligomer, or reactive polymer and a reactive ultraviolet absorber having an addition polymerizable double bond as described above. be able to. When the reactive ultraviolet absorber has a hydroxyl group, an amino group, a carboxyl group, an ethoxy group, or an isocyanate group, a thermoplastic resin having reactivity with the above reactive group is used, and a catalyst is used as necessary. The reactive ultraviolet absorber can be reactively fixed to the thermoplastic resin by heat or the like.

  Examples of the inorganic ultraviolet absorber include fine particles of zinc oxide, titanium oxide, cerium oxide, and iron oxide, which can be used by being dispersed in a binder in a timely manner.

  In addition to the peelable protective layer, as an optional configuration used in the present invention, for example, the adhesiveness between the hologram layer and the heat seal layer, or the adhesiveness between the hologram layer and the peelable protective layer is improved. The primer layer used for this purpose can be mentioned. Examples of such a primer layer include polyurethane, polyester, polyvinyl chloride resin, polyvinyl acetate resin, vinyl chloride-vinyl acetate copolymer, acrylic resin, polyvinyl alcohol resin, polyvinyl acetal resin, ethylene and acetic acid. Examples include those using a copolymer with vinyl or acrylic acid, an epoxy resin, or the like.

  In the present invention, as an arbitrary configuration, a barrier layer may be formed between the hologram layer and the heat seal layer. Depending on the combination of the photosensitive material used for the hologram layer and the thermoplastic resin used for the heat seal layer, the low molecular weight component may migrate from the hologram layer to other layers over time, resulting in recording on the hologram layer. This is because the reproduced wavelength of the volume hologram thus produced may shift to the blue side (short wavelength side), but such a problem can be solved by providing a barrier layer.

  The material used for the barrier layer is not particularly limited as long as it can exhibit a desired barrier property, but a transparent organic resin material is usually used. As the transparent organic resin material used in the present invention, for example, a solvent-free trifunctional or higher functional group, preferably a hexafunctional or higher functional ionizing radiation curable epoxy-modified acrylate resin that reacts with ionizing radiation such as ultraviolet rays or electron beams, Examples include urethane-modified acrylate resins and acrylic-modified polyester resins.

6). Hologram Transfer Foil The hologram transfer foil of the present invention can produce a hologram laminate having an excellent anti-counterfeit function by having both a hologram layer and an image forming layer. It is preferable that the hologram image recorded on the layer partially overlaps the image formed on the image forming layer. Thereby, in the hologram laminated body produced using the hologram transfer foil of the present invention, the hologram of the hologram layer can be partially covered with the image formed on the image forming layer. For this reason, since there is an image on the image forming layer even if copying is attempted, the anti-counterfeiting effect can be improved by the marking effect that the hologram cannot be copied (the image is also recorded as a hologram). .

  Here, in the present invention, the image of the hologram and the image “partially overlap” means that when the hologram transfer foil of the present invention is viewed from the plane direction, the hologram recorded on the hologram layer is It means that it is partially covered by the image of the image forming layer formed on the hologram layer. FIG. 7 is a schematic diagram showing an example in which the hologram image and the image are “partially overlapped” in the present invention. FIG. 7A is a schematic view when the hologram transfer foil of the present invention is viewed from the plane direction, and FIG. 7B is a cross-sectional view taken along line XX ′ in FIG. . As illustrated in FIG. 7, in the hologram transfer foil of the present invention, the hologram recorded on the hologram layer 3 is partially covered with the image of the image forming layer 2 formed on the hologram layer 3. Means.

7). Method for Producing Hologram Transfer Foil As a method for producing the hologram transfer foil of the present invention, a method of sequentially laminating an image forming layer, a hologram layer and a heat seal layer on a substrate can be used. A production method is preferably used.
That is, as a method for producing the hologram transfer foil of the present invention, a first laminate having a hologram layer formed on an arbitrary substrate and a second laminate having an image forming layer formed on the substrate are prepared. And a bonding step of bonding the first laminate and the second laminate so that the hologram layer and the image forming layer are in contact with each other, and heat for forming a heat seal layer after peeling the substrate of the first laminate. A production method comprising a sealing layer forming step is preferably used.

  Such a manufacturing method will be specifically described with reference to the drawings. FIG. 3 is a schematic view showing an example of a preferred method for producing the hologram transfer foil of the present invention. As illustrated in FIG. 3, in the hologram transfer foil of the present invention, the first laminate 21 having the hologram layer 3 formed on an arbitrary substrate 11 and the image forming layer 2 formed on the substrate 1 are formed. An adhesion step of bonding the first laminate 21 and the second laminate 22 so that the hologram layer 3 and the image forming layer 2 are in contact with each other using the second laminate 22 (FIG. 3A) ( 3 (b)), a heat seal layer forming step for forming the heat seal layer 4 after peeling the substrate 11 of the first laminate 21 (FIG. 3 (c)), and a manufacturing method (FIG. 3C) is preferably used. .

B. Next, the hologram laminate of the present invention will be described. The hologram laminate of the present invention includes a transfer object, a heat seal layer formed on the transfer object and containing a thermoplastic resin, a hologram layer formed on the heat seal layer and having a hologram recorded thereon. And an image forming layer formed on the hologram layer and having an image formed thereon.

  Such a hologram laminate of the present invention will be described with reference to the drawings. FIG. 4 is a schematic sectional view showing an example of the hologram laminate of the present invention. As illustrated in FIG. 4, the hologram laminate 30 of the present invention includes a transfer target 31, a heat seal layer 4 formed on the transfer target 31 and containing a thermoplastic resin, and the heat seal layer 4. It has a hologram layer 3 on which a hologram is recorded, and an image forming layer 2 formed on the hologram layer 3 and having an image formed thereon.

According to the present invention, by using the image forming layer in addition to the hologram layer, it is possible to obtain a hologram laminate having a more excellent anti-counterfeit function.
Further, according to the present invention, since the image forming layer is formed on the hologram layer, it is possible to prevent the image forming layer and the transfer target from coming into contact with each other. For this reason, for example, the image of the image forming layer is not deteriorated by the action of the compound used in the transferred material, and a hologram laminate having excellent durability of the image forming layer can be obtained.

The hologram laminate of the present invention includes at least the transfer target, a heat seal layer, a hologram layer, and an image forming layer, and any other configuration may be used as necessary.
Hereafter, each structure used for the hologram laminated body of this invention is demonstrated in order.

  The heat seal layer, the image forming layer, and the hologram layer used in the present invention are the same as those described in the above section “A. Hologram transfer foil”, and thus description thereof is omitted here.

1. Transfer object First, the transfer object used in the present invention will be described. The material to be transferred used in the present invention is not particularly limited as long as it can be adhered to the hologram layer via the heat seal layer, depending on the use of the hologram laminate of the present invention. Can be arbitrarily selected and used. Examples of such a member to be transferred include various cards such as paper used for passports, booklets and gift certificates, ID cards, films, cloths, metals, and glass.

2. Arbitrary Configuration The hologram laminate of the present invention has at least the transfer target, the image forming layer, the hologram layer, and the heat seal layer, but the present invention has other optional configurations other than these as necessary. Can be used. The arbitrary structure used for this invention is not specifically limited, According to the use etc. of the hologram laminated body of this invention, it can select suitably and can be used. Among these, as an arbitrary configuration suitably used in the present invention, a peelable protective layer formed on the hologram layer can be exemplified.

The case where a peelable protective layer is used for the hologram transfer foil of the present invention will be described with reference to the drawings. FIG. 5 is a schematic cross-sectional view showing an example where a peelable protective layer is used in the hologram laminate of the present invention. As illustrated in FIG. 5, in the hologram laminate 30 ′ of the present invention, the peelable protective layer 5 may be formed on the hologram layer 3.
Here, as an aspect in which the peelable protective layer 5 is formed, as illustrated in FIG. 5A, the aspect is formed between the image forming layer 2 and the hologram layer 3. Alternatively, as illustrated in FIG. 5B, the image forming layer 2 may be formed on the image forming layer 2.

  When a peelable protective layer is used in the hologram laminate of the present invention, the peelable protective layer preferably contains an ultraviolet absorber. This is because when the peelable protective layer contains an ultraviolet absorber, it is possible to prevent deterioration of the hologram layer due to ultraviolet rays over time.

  When the above-described fluorescent image forming layer is used as the image forming layer, the fluorescent image forming layer has a function of expressing an image when irradiated with ultraviolet rays. If an ultraviolet absorber is contained in the image, the expression of the image may be inhibited. Therefore, when the fluorescent image forming layer is used, the ultraviolet absorber may be contained only when the peelable protective layer is formed between the hologram layer and the image forming layer. preferable.

  Here, since the material used for the peelable protective layer used in the present invention and the ultraviolet absorber are the same as those described in the section of “A. Hologram transfer foil”, the description here is as follows. Omitted.

  Moreover, as an arbitrary structure used for this invention, the primer layer, barrier layer, etc. which were mentioned above other than the said peelable protective layer can also be used.

3. Hologram Laminate The hologram laminate of the present invention has an excellent anti-counterfeit function by having both a hologram layer and an image forming layer.In the present invention, the hologram image recorded on the hologram layer, It is preferable that the image formed on the image forming layer partially overlaps. Thereby, the hologram of the hologram layer can be partially covered with the image formed on the image forming layer. For this reason, since there is an image on the image forming layer even if copying is attempted, the anti-counterfeiting effect can be improved by the marking effect that the hologram cannot be copied (the image is also recorded as a hologram). .

  Here, in the present invention, the image of the hologram and the image “partially overlap” means that when the hologram transfer foil of the present invention is viewed from the plane direction, the hologram recorded on the hologram layer is It means that it is partially covered by the image of the image forming layer formed on the hologram layer. FIG. 7 is a schematic diagram showing an example in which the hologram image and the image are “partially overlapped” in the present invention. FIG. 7A is a schematic view when the hologram transfer foil of the present invention is viewed from the plane direction, and FIG. 7B is a cross-sectional view taken along line XX ′ in FIG. . As illustrated in FIG. 7, in the hologram transfer foil of the present invention, the hologram recorded on the hologram layer 3 is partially covered with the image of the image forming layer 2 formed on the hologram layer 3. Means.

Further, since the volume hologram laminate of the present invention has the above-mentioned transfer target body, a heat seal layer, a volume hologram layer, and an image forming layer, in addition to various information recorded in advance on the above-mentioned transfer target body. Information such as an image based on the volume hologram and the image forming layer is further added.
The volume hologram laminate of the present invention will be specifically described with reference to the drawings. FIG. 9 is a schematic view showing a specific example of the volume hologram laminate of the present invention and the transfer target used in the present invention. As illustrated in FIG. 9 (a), as the transfer object used in the present invention, one in which all kinds of information such as face image information, character information, and drawing information are recorded in advance can be used. As illustrated in FIG. 9B, the volume hologram laminate of the present invention includes a volume hologram layer, an optical variable image forming layer, and a fluorescent image formation on the transfer target illustrated in FIG. 9A. Additional information is recorded by transferring the layer.

3. Method for Producing Hologram Laminate The hologram laminate of the present invention can be generally produced by a known method. As a specific example of the method for producing a hologram laminate of the present invention, for example, a transferred object adhesion step of using the hologram transfer foil according to the present invention and adhering the transferred object onto the heat seal layer of the hologram transfer foil; And a substrate peeling step for peeling the substrate of the hologram transfer foil.

  Such a hologram laminate of this aspect will be described with reference to the drawings. FIG. 6 is a schematic view showing an example of the method for manufacturing a hologram laminate of this embodiment. As illustrated in FIG. 6, the hologram laminate manufacturing method according to the present embodiment uses the hologram transfer foil 10 according to the present invention (FIG. 6A), and on the heat seal layer 4 of the hologram transfer foil 6. A transferred object adhesion step (6 (b)) for bonding the transferred object 31 and a substrate peeling step (FIG. 6 (c)) for peeling the substrate 1 of the hologram transfer foil 10 are characterized. It is what.

  The method for adhering the transfer object onto the heat seal layer in the transfer object adhering step is not particularly limited as long as the heat seal layer can be adhered to a predetermined position of the transfer object. Usually, a method of adhering the transfer object by heating the heat seal 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 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 hologram transfer foil is peeled by physically pulling it away from the transfer target.

  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.

1. Example 1
(First laminate)
A PET film (trade name Lumirror T60 (50 μm): manufactured by Toray Industries, Inc.) is prepared as a first film, and a volume hologram recording material having the following composition is gravure as a hologram forming material so as to have a dry film thickness of 7 μm. Coating was performed with a coat, and a surface release treatment PET film (trade name: SP-PET (50 μm) manufactured by Tosero Co., Ltd.) was laminated on the coated surface to prepare a first laminate.

<Composition of volume hologram recording material>
・ Binder resin (polymethyl methacrylate resin (molecular weight 200,000))
50 parts by weight- 3,9-diethyl-3'-carboxylmethyl-2,2'-thiacarbocyanine iodine salt 0.5 parts by weight diphenyliodonium hexafluoroantimonate 6 parts by weight 2,2-bis (4- (Acryloxydiethoxy) phenyl) propane
80 parts by weight, 1,6-hexanediol diglycidyl ether 80 parts by weight, fluorine fine particles 8 parts by weight, solvent (methyl isobutyl ketone / n-butanol = 1/1 (weight ratio)
200 parts by weight

(Formation of image forming layer)
A surface release-treated PET film (trade name: SP-PET 50 μm, manufactured by Tosero Co., Ltd.) was prepared as a second film, and 13-BL ink BL blue manufactured by Teikoku Mfg. Co., Ltd. was used as the surface release-treated PET film. Was printed and dried at 60 ° C. for 30 minutes. Next, BL green was printed and dried at 60 ° C. for 30 minutes, and further BL red was printed and dried at 60 ° C. for 30 minutes. All were printed by screen printing so as to have a dry film thickness of 5 μm.

(Volume hologram recording)
A volume hologram was photographed and recorded on a first film / layer of volume hologram recording material / surface release treatment PET film using a laser beam having a wavelength of 532 nm. After recording, this laminate was heated in an atmosphere of 100 ° C. for 10 minutes, and after the heating, the surface release-treated PET film was peeled off and exposed to a layer of volume hologram recording material that was exposed to the second film / image formation. The layers were stacked so that the image forming surface side was in contact with each other, and passed through a pair of heated rollers at 80 ° C. to obtain a laminate of the first film / volume hologram layer / image forming layer / second film. Thereafter, using a high-pressure mercury lamp, the entire surface was irradiated with ultraviolet rays having an irradiation dose of 2500 mJ / cm ^{2 to} fix the volume hologram recording material layer.

(Coating of heat seal layer)
From the first film / volume hologram layer / image forming layer / second film prepared above, a material having the following composition was formed on the volume hologram layer exposed by peeling the first film, and the dry film thickness was 4 μm. Then, a gravure coat was applied, and a surface release treatment PET film (trade name: SP-PET (50 μm), manufactured by Tosero Co., Ltd.) was laminated on the coated surface to prepare a transfer foil.

<Composition of heat seal layer forming material>
・ Polyester resin (trade name: Byron 550, manufactured by TOYOBO, Tg: −15 ° C., molecular weight 28000) 20 parts by weight. Solvent (methyl ethyl ketone / toluene = 1/1 (weight ratio)) 80 parts by weight

2. Example 2
(First laminate)
A PET film (trade name Lumirror T60 (50 μm): manufactured by Toray Industries, Inc.) is prepared as a first film, and a volume hologram recording material having the following composition is gravure as a hologram forming material so as to have a dry film thickness of 7 μm. Coating was performed with a coat, and a surface release treatment PET film (trade name: SP-PET (50 μm), manufactured by Tosero Co., Ltd.) was laminated on the coated surface to prepare a first laminate.

<Composition of volume hologram recording material>
・ Binder resin (polymethyl methacrylate resin (molecular weight 200,000))
50 parts by weight- 3,9-diethyl-3'-carboxylmethyl-2,2'-thiacarbocyanine iodine salt 0.5 parts by weight diphenyliodonium hexafluoroantimonate 6 parts by weight 2,2-bis (4- (Acryloxydiethoxy) phenyl) propane
80 parts by weight, 1,6-hexanediol diglycidyl ether 80 parts by weight, fluorine fine particles 8 parts by weight, solvent (methyl isobutyl ketone / n-butanol = 1/1 (weight ratio)
200 parts by weight

(Formation of image forming layer)
A surface release-treated PET film (trade name: SP-PET (50 μm), manufactured by Tosero Co., Ltd.) was prepared as a second film, and UV PAL BL ink manufactured by Teikoku Mfg. Co., Ltd. was used as the surface release-treated PET film. Was printed to a dry film thickness of 5 μm, and UV irradiation was performed at about 250 mJ / cm ² in an 80 W / cm ² metal halide lamp.

(Volume hologram recording)
A volume hologram was photographed and recorded on a first film / layer of volume hologram recording material / surface release treatment PET film using a laser beam having a wavelength of 532 nm. After recording, this laminate was heated in an atmosphere of 100 ° C. for 10 minutes, and after the heating, the surface release-treated PET film was peeled off and exposed to a layer of volume hologram recording material that was exposed to the second film / image formation. The layers were stacked so that the image forming surface side was in contact with each other, and passed through a pair of heated rollers at 80 ° C. to obtain a laminate of the first film / volume hologram layer / image forming layer / second film. Thereafter, using a high-pressure mercury lamp, the entire surface was irradiated with ultraviolet rays having an irradiation dose of 2500 mJ / cm ^{2 to} fix the volume hologram recording material layer.

(Coating of heat seal layer)
From the first film / volume hologram layer / image forming layer / second film produced as described above, a material having the following composition on the volume hologram layer exposed by peeling off the first film, It was coated with a gravure coat so as to be 4 μm, and a surface release treatment PET film (trade name: SP-PET (50 μm) manufactured by Tosero Co., Ltd.) was laminated on the coated surface to prepare a transfer foil.

<Composition of heat seal layer forming material>
・ Polyester resin (trade name: Byron 550, manufactured by TOYOBO, Tg: −15 ° C., molecular weight 28000) 20 parts by weight. Solvent (methyl ethyl ketone / toluene = 1/1 (weight ratio)) 80 parts by weight

3. Example 3
(First laminate)
A PET film (trade name Lumirror T60 (50 μm): manufactured by Toray Industries, Inc.) is prepared as a first film, and a volume hologram recording material having the following composition is gravure as a hologram forming material so as to have a dry film thickness of 7 μm. Coating was performed with a coat, and a surface release treatment PET film (trade name: SP-PET (50 μm) manufactured by Tosero Co., Ltd.) was laminated on the coated surface to prepare a first laminate.

<Composition of volume hologram recording material>
・ Binder resin (polymethyl methacrylate resin (molecular weight 200,000))
50 parts by weight- 3,9-diethyl-3'-carboxylmethyl-2,2'-thiacarbocyanine iodine salt 0.5 parts by weight diphenyliodonium hexafluoroantimonate 6 parts by weight 2,2-bis (4- (Acryloxydiethoxy) phenyl) propane
80 parts by weight, 1,6-hexanediol diglycidyl ether 80 parts by weight, fluorine fine particles 8 parts by weight, solvent (methyl isobutyl ketone / n-butanol = 1/1 (weight ratio)
200 parts by weight

(Formation of image forming layer)
A surface release treated PET film (trade name: SP-PET (50 μm) manufactured by Tosero Co., Ltd.) is prepared as a second film, and ACT (N) polarized pearl ink is screen printed on the surface release treated PET film. Was printed to a dry film thickness of 5 μm. After natural drying at 20 ° C. for 10 minutes, ACT (N) 710 ink was printed by screen printing to a dry film thickness of 5 μm. Next, it was naturally dried at 20 ° C. for 10 minutes.

(Volume hologram recording)
A volume hologram was photographed and recorded on a first film / layer of volume hologram recording material / surface release treatment PET film using a laser beam having a wavelength of 532 nm. After recording, this laminate was heated in an atmosphere of 100 ° C. for 10 minutes, and after the heating, the surface release-treated PET film was peeled off and exposed to a layer of volume hologram recording material that was exposed to the second film / image formation. The layers were stacked so that the image forming surface side was in contact with each other, and passed through a pair of heated rollers at 80 ° C. to obtain a laminate of the first film / volume hologram layer / image forming layer / second film. Thereafter, using a high-pressure mercury lamp, the entire surface was irradiated with ultraviolet rays having an irradiation dose of 2500 mJ / cm ^{2 to} fix the volume hologram recording material layer.

(Coating of heat seal layer)
From the first film / volume hologram layer / image forming layer / second film prepared above, a material having the following composition was formed on the volume hologram layer exposed by peeling the first film, and the dry film thickness was 4 μm. Then, a gravure coat was applied, and a surface release treatment PET film (trade name: SP-PET (50 μm), manufactured by Tosero Co., Ltd.) was laminated on the coated surface to prepare a transfer foil.

<Composition of heat seal layer forming material>
・ Polyester resin (trade name: Byron 550, manufactured by TOYOBO, Tg: −15 ° C., molecular weight 28000) 20 parts by weight. Solvent (methyl ethyl ketone / toluene = 1/1 (weight ratio)) 80 parts by weight

4). Example 4
(Substrate / peelable protective layer second laminate)
A PET film (trade name Lumirror T60 (50 μm): manufactured by Toray Industries, Inc.) is prepared as a second film, and a material having the following composition is applied as a peelable protective layer to a gravure coat to a dry film thickness of 1 μm. And coated.

<Composition of material for forming peelable protective layer>
Polyethylene methacrylate resin (molecular weight: 1,000,000) 97 parts by weight Polyethylene wax (molecular weight: 10,000, average particle size: 5 μm) 3 parts by weight Solvent (methyl ethyl ketone / toluene = 1/1 (weight ratio)) 400 parts by weight

(Formation of image forming layer)
On the second film / peelable protective layer, 13-BL ink BL Blue manufactured by Teikoku Mfg. Co., Ltd. was printed and dried at 60 ° C. for 30 minutes. Next, BL green was printed and dried at 60 ° C. for 30 minutes, and further BL red was printed and dried at 60 ° C. for 30 minutes. All were printed by screen printing so as to have a dry film thickness of 5 μm.

(First laminate)
A PET film (trade name Lumirror T60 (50 μm): manufactured by Toray Industries, Inc.) is prepared as a first film, and a volume hologram recording material having the following composition is gravure as a hologram forming material so as to have a dry film thickness of 7 μm. Coating was performed with a coat, and a surface release treatment PET film (trade name: SP-PET (50 μm) manufactured by Tosero Co., Ltd.) was laminated on the coated surface to prepare a first laminate.

<Composition of volume hologram recording material>
・ Binder resin (polymethyl methacrylate resin (molecular weight 200,000))
50 parts by weight- 3,9-diethyl-3'-carboxylmethyl-2,2'-thiacarbocyanine iodine salt 0.5 parts by weight diphenyliodonium hexafluoroantimonate 6 parts by weight 2,2-bis (4- (Acryloxydiethoxy) phenyl) propane 80 parts by weight, 1,6-hexanediol diglycidyl ether 80 parts by weight, fluorine fine particles 8 parts by weight, solvent (methyl isobutyl ketone / n-butanol = 1/1 (weight ratio)
200 parts by weight

(Volume hologram recording)
A volume hologram was photographed and recorded on a first film / layer of volume hologram recording material / surface release treatment PET film using a laser beam having a wavelength of 532 nm. After recording, this laminate was heated in an atmosphere of 100 ° C. for 10 minutes, and after the heating, the surface release-treated PET film was peeled off and exposed to the layer of volume hologram recording material which was exposed to the second film / peelability. The protective layer / image-forming layer is laminated so that the image-forming surface side is in contact with each other, and is passed between a pair of heated rollers at 80 ° C. so that the first film / volume hologram layer / image-forming layer / peelable protective layer / After obtaining the second film laminate, the volume hologram recording material layer was fixed by irradiating the entire surface with an ultraviolet ray having an irradiation dose of 2500 mJ / cm ² using a high-pressure mercury lamp.

(Coating of heat seal layer)
From the first film / volume hologram layer / image forming layer / peelable protective layer / second film produced above, a material having the following composition is formed on the volume hologram layer exposed by peeling the first film. The film is coated with a gravure coat so that the dry film thickness is 4 μm, and a surface release treatment PET film (trade name: SP-PET (50 μm), manufactured by Tosero Co., Ltd.) is laminated on the coated surface to produce a transfer foil. Was done.

<Composition of heat seal layer forming material>
・ Polyester resin (trade name: Byron 550, manufactured by TOYOBO, Tg: −15 ° C., molecular weight 28000) 20 parts by weight. Solvent (methyl ethyl ketone / toluene = 1/1 (weight ratio)) 80 parts by weight

5. Example 5
(Formation of image forming layer)
On the second film (surface release-treated PET film (trade name: SP-PET (50 μm) manufactured by Tosero Co., Ltd.)), Teikoku Mfg. Co., Ltd. 13-BL ink BL Blue was printed, and 60 ° C. for 30 minutes. And dried. Next, BL green was printed and dried at 60 ° C. for 30 minutes, and further BL red was printed and dried at 60 ° C. for 30 minutes. All were printed by screen printing so as to have a dry film thickness of 5 μm.

(Second laminate of substrate / image forming layer / peelable protective layer)
On the image forming surface of the second film / image forming layer, a material having the following composition was applied as a peelable protective layer containing an ultraviolet absorber by gravure coating so as to have a dry film thickness of 1 μm. .

<Composition of material for forming peelable protective layer>
・ Polymethyl methacrylate resin (molecular weight: 1,000,000) 97 parts by weight ・ Polyethylene wax (molecular weight: 10,000, average particle size: 5 μm) 3 parts by weight ・ Benzophenone-modified polymethyl methacrylate 15 parts by weight ・ Solvent (methyl ethyl ketone / toluene = 1 / 1 (weight ratio)) 400 parts by weight

(First laminate)
A PET film (Lumirror T60 (50 μm): manufactured by Toray Industries, Inc.) is prepared as a first film, and a volume hologram recording material having the following composition is applied as a hologram forming material to a gravure coat so as to have a dry film thickness of 7 μm. Then, a surface release treatment PET film (trade name: SP-PET (50 μm), manufactured by Tosero Co., Ltd.) was laminated on the coated surface to prepare a first laminate.

<Composition of volume hologram recording material>
・ Binder resin (polymethyl methacrylate resin (molecular weight 200,000))
50 parts by weight- 3,9-diethyl-3'-carboxylmethyl-2,2'-thiacarbocyanine iodine salt 0.5 parts by weight diphenyliodonium hexafluoroantimonate 6 parts by weight 2,2-bis (4- (Acryloxydiethoxy) phenyl) propane
80 parts by weight, 1,6-hexanediol diglycidyl ether 80 parts by weight, fluorine fine particles 8 parts by weight, solvent (methyl isobutyl ketone / n-butanol = 1/1 (weight ratio)
200 parts by weight

(Volume hologram recording)
A volume hologram was photographed and recorded on a first film / layer of volume hologram recording material / surface release treatment PET film using a laser beam having a wavelength of 532 nm. After recording, this laminate was heated in an atmosphere of 100 ° C. for 10 minutes, and after the heating, the surface release-treated PET film was peeled off and exposed to a layer of volume hologram recording material that was exposed to the second film / image formation. Layer / peelable protective layer is laminated so that the peelable protective layer side is in contact, and passed between a pair of heated rollers at 80 ° C., and the first film / volume hologram layer / peelable protective layer / image forming layer / After obtaining the laminate of the second film, the entire surface of the volume hologram recording material was fixed by irradiating the entire surface with an ultraviolet ray having an irradiation dose of 2500 mJ / cm ² using a high-pressure mercury lamp.

(Coating of heat seal layer)
From the first film / volume hologram layer / peelable protective layer / image forming layer / second film prepared above, a material having the following composition is formed on the volume hologram layer exposed by peeling the first film. The film is coated with a gravure coat so that the dry film thickness is 4 μm, and a surface release treatment PET film (trade name: SP-PET (50 μm), manufactured by Tosero Co., Ltd.) is laminated on the coated surface to produce a transfer foil. Was done.

<Composition of heat seal layer forming material>
・ Polyester resin (product name: Byron 550, manufactured by TOYOBO, Tg: −15 ° C., molecular weight 28000) 20 parts by weight • Solvent (methyl ethyl ketone / toluene = 1/1 (weight ratio)) 80 parts by weight

6). Example 6
(Lamination of image forming layer and volume hologram layer)
The same method as in Example 1 was performed until the volume hologram was recorded. Next, the layered body on which the volume hologram is recorded is heated in an atmosphere of 100 ° C. for 10 minutes, and after the heating, the surface release-treated PET film is peeled off and exposed to the layer of the volume hologram recording material. The film / image-forming layer side of the film is in contact with the image-forming surface side, and the image on the image-forming layer and the volume hologram image are partially or entirely overlapped with each other and passed between a pair of heated nips at 80 ° C. Then, after obtaining a laminate of the first film / volume hologram layer / image forming layer / second film, the whole surface was irradiated with ultraviolet rays having an irradiation dose of 2500 mJ / cm ² using a high-pressure mercury lamp, The layer of the hologram recording material was fixed (FIGS. 7A and 7B).

(Coating of heat seal layer)
From the first film / volume hologram layer / image forming layer / second film prepared above, a material having the following composition was formed on the volume hologram layer exposed by peeling the first film, and the dry film thickness was 4 μm. Then, a gravure coat was applied, and a surface release treated PET film (trade name: SP-PET (50 μm) manufactured by Tosero Co., Ltd.) was laminated on the coated surface to prepare a transfer foil.

<Composition of heat seal layer forming material>
・ Polyester resin (trade name: Byron 550, manufactured by TOYOBO, Tg: −15 ° C., molecular weight 28000) 20 parts by weight. Solvent (methyl ethyl ketone / toluene = 1/1 (weight ratio)) 80 parts by weight

7). Example 7
(Preparation of relief hologram master)
In this example, a computer generated hologram was produced as a relief hologram based on Japanese Patent Application Laid-Open No. 11-24539.
Interference fringe data is calculated by a computer, rectangular data for drawing is generated on the basis of the interference fringe data, and a fine rectangular pattern is drawn on the glass substrate by electron beam drawing using the drawing rectangular data to provide a relief type A hologram master was prepared.

(Substrate / peelable protective layer second laminate)
A PET film (trade name Lumirror T60 (50 μm): manufactured by Toray Industries, Inc.) is prepared as a second film, and a material having the following composition is applied as a peelable protective layer to a gravure coat to a dry film thickness of 1 μm And coated.

<Composition of material for forming peelable protective layer>
・ 97 parts by weight of polymethyl methacrylate resin (molecular weight: 1,000,000) ・ Polyethylene wax (molecular weight: 10,000, average particle size: 5 μm)
3 parts by weight / solvent (methyl ethyl ketone / toluene = 1/1 (weight ratio))
400 parts by weight

(Formation of image forming layer)
On the second film / peelable protective layer, 13-BL ink BL Blue manufactured by Teikoku Mfg. Co., Ltd. was printed and dried at 60 ° C. for 30 minutes. Next, BL green was printed and dried at 60 ° C. for 30 minutes, and further BL red was printed and dried at 60 ° C. for 30 minutes. All were printed by screen printing so as to have a dry film thickness of 5 μm.

(Formation of relief hologram)
An ultraviolet curable composition having the following composition is dropped on the second film / peelable protective layer / image forming layer, and the relief hologram master is overlaid on the ultraviolet curable composition. The ultraviolet curable composition was cured by irradiating with an ultraviolet ray of cm ² (365 nm). Thereafter, the relief-type hologram master was peeled off. Subsequently, an aluminum layer was deposited on the surface of the ultraviolet curable composition by a vacuum deposition method to form a reflective relief hologram.

<Ultraviolet curing composition>
・ Gooselac UV-7500B (Nippon Synthetic Chemical) 35 parts by weight ・ 1,6 hexanediol diacrylate (Toagosei Chemical) 35 parts by weight dipentaerythritol triacrylate (Toagosei Chemical) 10 parts by weight ・ Vinylpyrrolidone (Toagosei) 15 parts by weight-1 hydroxycyclohexyl phenyl ketone (Ciba Geigy) 2 parts by weight-Benzophenone (Nippon Kayaku) 2 parts by weight-TSF4440 (GE Toshiba Silicone) 1 part by weight

(Coating of heat seal layer :)
On the second film / peelable protective layer / image forming layer / relief hologram layer / deposition layer prepared above, a material having the following composition was applied by gravure coating so as to have a dry film thickness of 4 μm. A surface release-treated PET film (“SP-PET” 50 μm, manufactured by Tosero Co., Ltd.) was laminated on the work surface to prepare a transfer foil (FIG. 8).

<Composition of heat seal layer forming material>
・ Polyester resin (byron 550, manufactured by TOYOBO, Tg: −15 ° C., molecular weight 28000) 20 parts by weight ・ Solvent (methyl ethyl ketone / toluene = 1/1 (weight ratio)) 80 parts by weight

8). Example 8
A volume hologram transfer foil was produced in the same manner as in Example 4 except that the image forming layer was formed in the following steps.

(Preparation of transfer film for fluorescent image forming layer)
The following heat resistant slipping layer material is applied to the surface of a 6 μm thick polyethylene terephthalate transparent substrate by gravure printing so as to be 0.5 μm, and the following release layer forming material is applied to the opposite surface of the substrate. The entire surface was coated by gravure printing so that the fluorescent image forming layer had a thickness of 1.0 μm and a fluorescent image forming layer of 1.5 μm, thereby obtaining a transfer film for a fluorescent image forming layer.

<Composition of heat-resistant slip layer material>
Polyvinyl butyral resin (Sekisui Chemical Co., Ltd., trade name ESREC BX-1) 3.6 parts by weight Polyisocyanate (Dainippon Ink Chemical Co., Ltd., trade name Barnock D750) 8.6 parts by weight Phosphoric ester-based surfactant Agent (Daiichi Pharmaceutical Co., Ltd., trade name: Prisurf A208S) 2.8 parts by weight-Talc (Nihon Talc Industrial Co., Ltd., trade name: Microace P-3)
0.7 parts by weight ・ Methyl ethyl ketone / toluene = 1/1 64 parts by weight

<Composition of release layer forming material>
・ Acrylic resin (trade name: BR-87 manufactured by Mitsubishi Rayon) 20 parts by weight ・ Polyester resin (trade name: V-200 manufactured by Toyobo) 0.1 part by weight ・ Solvent (methyl ethyl ketone / toluene = 1/1) 100 parts by weight

<Composition of fluorescent image forming layer forming material>
・ Organic blue fluorescent agent (trade name, manufactured by Ubitex OB Ciba Specialty Chemicals, UV absorption wavelength of about 366 nm, fluorescence emission wavelength of about 420 nm)
1 part by weight ・ Vinyl chloride-vinyl acetate copolymer resin solution (trade name: Solvain CNL, manufactured by Nissin Chemical Industry) 100 parts by weight ・ Solvent (methyl ethyl ketone / toluene = 1/1) 100 parts by weight

(Preparation of image forming layer)
The fluorescent light emitting layer forming material layer side of the fluorescent image forming layer transfer film is overlaid on the peelable protective layer of the second laminate, and 0.5 J / mm ² using a thermal head on the peelable protective layer. Image information was printed, and an image forming layer was produced on the peelable protective layer.

9. Example 9
The volume hologram laminate of Examples 1 to 8 was transferred to a gift certificate using a hot stamp machine manufactured by Navitas Co., Ltd. at a transfer temperature of 150 ° C. and a pressure of 0.8 Mpa, and the second film was peeled off to peel off the volume hologram laminate. Got the body.

10. Example 10
The hologram laminates of Examples 1 to 8 were transferred onto a polyvinyl chloride card on which face information and character information were previously transferred by sublimation transfer using a hot stamping machine manufactured by Navitas Co., Ltd. at a transfer temperature of 150 ° C. and a pressure of 0.8 Mpa. Transfer was performed, and the second film was peeled off to obtain a volume hologram laminate.

DESCRIPTION OF SYMBOLS 1 ... Base material 2 ... Image formation layer 3 ... Hologram layer 3 '... Relief hologram layer 4 ... Heat seal layer 5 ... Peelable protective layer 6 ... Reflective layer 10, 10' ... Hologram transfer foil 11 ... Substrate 21 ... 1st lamination | stacking Body 22 ... Second laminate 30, 30 '... Hologram laminate 31 ... Transfer object

Claims (8)

A substrate, formed on the substrate, and images the image forming layer formed, is formed on the image forming layer, the volume hologram layer in which a hologram has been recorded, is formed on the volume hologram layer, A heat seal layer containing a thermoplastic resin,
Wherein an image formed on the image forming layer, an image of the hologram recorded in the volume hologram layer, Ri part Do heavy,
The material constituting the volume hologram layer contains a cationic polymerizable compound, a radical polymerizable compound, a photo radical polymerization initiator system, and a cationic polymerization initiator system, and the photo radical polymerization initiator system serves as a sensitizer. A volume hologram transfer foil comprising a cyanine dye . The volume hologram transfer foil according to claim 1, wherein the image formed on the image forming layer is at least one of a pattern, a line drawing, a character, a figure, or a symbol. The volume hologram transfer foil according to claim 1, wherein the image forming layer is a fluorescent image forming layer in which an image is formed by a fluorescent material that emits fluorescence by absorbing ultraviolet rays. 3. The volume hologram transfer foil according to claim 1, wherein the image forming layer is an optically variable image forming layer in which an image is formed of an optically variable material whose color changes depending on a viewing angle. . The volume hologram transfer foil according to any one of claims 1 to 4, wherein a peelable protective layer is formed between the volume hologram layer and the substrate. 6. The peelable protective layer is formed between the volume hologram layer and the image forming layer, and the peelable protective layer contains an ultraviolet absorber. The volume hologram transfer foil described in 1. A transferred body, a heat seal layer formed on the transferred body and containing a thermoplastic resin, a volume hologram layer formed on the heat seal layer and having holograms recorded thereon, and the volume hologram layer; And an image forming layer on which an image is formed,
Wherein an image formed on the image forming layer, an image of the hologram recorded in the volume hologram layer, Ri part Do heavy,
The material constituting the volume hologram layer contains a cationic polymerizable compound, a radical polymerizable compound, a photo radical polymerization initiator system, and a cationic polymerization initiator system, and the photo radical polymerization initiator system serves as a sensitizer. A volume hologram laminate, comprising a cyanine dye . The volume hologram laminate according to claim 7, wherein the image formed on the image forming layer is at least one of a pattern, a line drawing, a character, a figure, or a symbol.