JP2006103221A - Id card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ID card which is provided with a face image of a high image quality and with clear and high-grade printing, of which the card face information has an excellent durability and is hard to fabricate and which enables the accurate judgement of the authenticity by a simple method and has a high productivity. <P>SOLUTION: The ID card has a layer coloring in black under irradiation with a laser light on a card base constituted of polyester or polycarbonate, and an image or character information is formed on a card face under irradiation with the laser light. Format information is printed on the coloring layer by offset printing using process ink. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a novel ID card.

  Currently, there are many types of identification cards (hereinafter referred to as ID cards) such as driver's licenses for cars, passports, alien registration cards, identification cards, membership cards with photos, business cards with photos, etc. It has become widespread.

  Conventionally, an ID card image has, for example, a structure in which a face photograph or a character image is formed on the surface of a support by silver salt photography, and a protective layer is further provided on the surface. A gradation image such as a face photograph by the silver salt photography method can obtain an overwhelmingly superior image quality as compared with the case of using other recording means. However, in contrast to this, the silver salt photography method has a problem that it lacks sharpness or density when it tries to obtain binary images such as characters or marks at the same time. This is derived from the gradation of the silver halide photograph, and the binary image is deteriorated because the gradation image is optimized.

  Under such circumstances, there is a method of embedding a face photograph part in a card or sandwiching it in a laminate sheet, and recording other characters by a recording method suitable for a binary image, for example, a method using printing or various printers. Has been taken. However, in the case of this method, it takes time to embed or insert the card in the card, resulting in an ID card that lacks monolithic finish.

  In response to the above problems, a method of printing an image by a sublimation transfer printing method on a plastic card, and providing a card by oversheeting after printing (see, for example, Patent Document 1), a facial photograph or character information by an inkjet recording method. Printed and printed cards have been proposed (see, for example, Patent Document 2). In addition, an ID card is proposed in which a heat-diffusible dye image-receiving layer is provided, and a dye image is received on the image-receiving layer to form a transfer image, and then an ultraviolet curing protective layer is provided to provide a high-quality face image and the like. (For example, refer to Patent Document 3). With these proposed methods, it is possible to obtain prints that are close to silver salt, but since all the prints and prints on the card are performed using the same print method or print method, there are problems in terms of card productivity and cost. The durability of the formed images and characters is not sufficient. In addition, security considerations that have been emphasized in recent years for ID cards have not been sufficient.

  In the card printed with the sublimation transfer printing method of Patent Document 1, the card oversheeted after printing, and the card and character information printed and printed with the ink jet recording method of Patent Document 2, the printed image and character information are on the image receiving layer. The printed image and character information is removed by a method such as scraping, and then a new printed image and character information is printed and printed by a sublimation transfer printing method, an inkjet recording method, or other methods. It was relatively easy to falsify, and there were concerns about security.

  As a card with enhanced printing and printing security, a card (for example, see Patent Documents 4 to 8) that prints and prints on a ticket surface by laser light irradiation is disclosed, and the card is placed on a card substrate. Because it has a color-developing layer that develops black color when irradiated with a laser beam, and can form printed images and print information in the color-developing layer when irradiated with laser beam, it is almost impossible to scrape off, thus preventing counterfeiting The effect can be improved.

  In the laser printing cards described in Patent Documents 4 to 6, black information such as a black image and black printing information is formed on the ticket surface by laser light irradiation. Image forming technology for color development has been studied, a microcapsule encapsulating a color former, a developer monomer having a polymerizable group that develops color by a contact reaction with the color former, and a color development layer containing a photopolymerization initiator And an image forming technique for forming an image by causing the color forming layer to develop a color with a laser beam. (For example, refer patent documents 9-13.).

  By applying the image forming technology described in each of the above patent documents to an ID card, and having a function of yellow color development, magenta color development, and cyan color development, it becomes a card in which a color image is formed inside the color development layer by laser light irradiation. The ID card has an improved anti-counterfeiting effect because it cannot be tampered with such as scraping a color image. In addition, by forming a printed image and printing information inside the card color developing layer, it has abrasion and water resistance compared to the conventional image receiving layer formed with sublimation ink images, inkjet printing images, and melted ink character information. In addition, durability such as weather resistance can be greatly increased.

  However, with regard to strengthening the security function of the ID card, the image formation technology inside the color-developing layer using laser light alone is insufficient for preventing counterfeiting, and the ID card requires a relatively short time for authenticity determination. In the case of a technique for forming an image inside the color-developing layer by light, since the appearance does not differ greatly from the melted character printing information by the melted ribbon, the printed image by the sublimation transfer method, and the ink jet method, the authenticity determination is not instantaneously enhanced.

In addition, when printing and printing inside the color-developing layer with a laser beam on almost the entire surface of an ID card, the printing and printing with a laser beam takes time, which is problematic in terms of productivity and shortens the production time. For example, if the laser beam irradiation energy is strengthened or a large number of laser beam irradiation devices are installed, there are problems such as high cost due to the large-scale equipment and limited installation location, and consideration for the environment due to the use of high energy Is insufficient.
JP 2002-144747 A JP 2001-239779 A JP-A-6-24183 JP-A-8-248864 Japanese Patent Laid-Open No. 10-6044 JP 2001-175838 A JP 2004-122614 A JP 2004-98368 A JP-A-8-90919 JP-A-8-127180 JP 11-249294 A JP 2000-199952 A JP 2001-33956 A

  The present invention has been made in view of the above problems, and a first object is to provide an ID card having high-quality face images and clear and high-quality printing, and having excellent card face information and durability. There is to do. A second object of the present invention is to provide an ID card that is difficult to forge and that can be accurately determined by a simple method in determining authenticity. The third object of the present invention is to provide an ID card having high productivity.

  The above object of the present invention is achieved by the following configurations.

(Claim 1)
In an ID card having a color developing layer that develops a black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and forming an image or character information on the card face by laser light irradiation, a process ink is formed on the color developing layer. An ID card characterized in that format information is printed by offset printing using.

(Claim 2)
In ID cards that have a color-developing layer that develops black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and that forms images and text information on the card face by laser light irradiation, special color inks on the color-developing layer Alternatively, an ID card in which format information is printed by printing using special ink located on coordinates outside the color reproduction area of process ink.

(Claim 3)
In an ID card that has a color-developing layer that develops a black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and forms an image or text information on the card face by irradiation with laser light. An ID card characterized in that format information comprising image information and character information is printed by printing using black ink.

(Claim 4)
In an ID card that has a coloring layer that develops a black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and that forms an image or text information on the card face by irradiation with laser light, format information is formed on the coloring layer. An ID card characterized in that printing and transfer foil are applied.

(Claim 5)
In an ID card that has a coloring layer that develops a black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and that forms an image or text information on the card face by irradiation with laser light, format information is formed on the coloring layer. An ID card, which is printed with a hologram transfer foil.

(Claim 6)
In an ID card for forming a color image by laser light on a card substrate made of polyester or polycarbonate and having a color developing layer for yellow color development, magenta color development and cyan color development by laser light irradiation, a process ink is formed on the color development layer. An ID card characterized in that format information is printed by offset printing using.

(Claim 7)
A special color ink is formed on a color base layer of an ID card that has a color layer for yellow color, magenta color, and cyan color by laser light irradiation on a card base made of polyester or polycarbonate, and forms a color image by laser light. Alternatively, an ID card in which format information is printed by printing using special ink located on coordinates outside the color reproduction area of process ink.

(Claim 8)
In an ID card that forms a color image by laser light irradiation on a card base made of polyester or polycarbonate and that forms a color image by yellow color, magenta color and cyan color by laser light irradiation, carbonless on the color development layer An ID card in which format information including image information and character information is printed by printing using black ink.

(Claim 9)
In an ID card that has a color developing layer that forms yellow color, magenta color, and cyan color when irradiated with laser light on a card base made of polyester or polycarbonate, and format information is formed on the color developing layer in an ID card that forms a color image by laser light. An ID card characterized in that printing and transfer foil are applied.

(Claim 10)
In an ID card that has a color developing layer that forms yellow color, magenta color, and cyan color when irradiated with laser light on a card base made of polyester or polycarbonate, and format information is formed on the color developing layer in an ID card that forms a color image by laser light. An ID card, which is printed with a hologram transfer foil.

(Claim 11)
The ID card according to claim 1, wherein the format information is printed by letterpress printing or planographic offset printing.

(Claim 12)
The ID card according to claim 1, wherein the format information is printed by combined printing of letterpress printing and planographic offset printing.

(Claim 13)
The ID card according to any one of claims 1 to 12, wherein the format information is printed by colored printing including image information and character information and colorless printing using OP varnish.

(Claim 14)
The printing of the format information is performed by colorless printing using an anchor varnish, colored printing including image information and character information, and colorless printing using an OP varnish. The ID card according to item 1.

(Claim 15)
The ID card according to claim 1, wherein after the format information is printed, melted character information is printed using a melt ribbon.

(Claim 16)
The ID card according to claim 13 or 14, wherein the color printing including the image information and the character information is printed by a planographic offset printing method.

(Claim 17)
The ID card according to claim 16, wherein a plate used for lithographic offset printing that performs color printing composed of image information and character information is a fair dot screen.

(Claim 18)
The ID card according to any one of claims 1 to 17, wherein the entire back surface of the card is subjected to resin lamination processing or transparent resin layer printing.

  According to the present invention, high-quality face images and clear and high-quality printing are performed, the card face information has excellent durability, is difficult to forge, and is a simple method for authenticity determination. An ID card that can be accurately determined and has high productivity can be provided.

  Hereinafter, the best mode for carrying out the present invention will be described in detail.

  As a result of intensive studies in view of the above problems, the present inventor printed format information on an ID card material having a color-developing layer that develops a black color by laser light irradiation on a card base made of polyester or polycarbonate, and then irradiated with laser light. For ID cards that print face images, text information, and image information, 1) offset printing using process ink, 2) special color ink or special ink located on coordinates outside the color reproduction area 3) Printing using at least one carbonless black ink. By providing a transparent transfer foil and hologram transfer foil on the format information print, high-quality face images and clear and high quality With high-quality printing, card face information has excellent durability, high anti-counterfeiting, simple and Can precise authenticity determination, even found to be able to realize an ID card having a high productivity, it is completed the invention.

  Similarly, format information is printed on an ID card material having a color developing layer for yellow color development, magenta color development, and cyan color development on a card substrate made of polyester or polycarbonate by laser light irradiation. Format information is printed on ID cards for printing information and image information: 1) offset printing using process ink, 2) printing using special color ink or special ink located on coordinates outside the color reproduction area, 3 ) Printing using at least one type of carbonless black ink. By providing a transparent transfer foil and hologram transfer foil on the format information, high-quality face images and clear, high-quality printing are performed. The card face information has excellent durability, high anti-counterfeiting, simple and appropriate Such authenticity determination is possible, even found to be able to realize an ID card having a high productivity, it is completed the invention.

  Details of the present invention will be described below.

  The basic configuration of the ID card of the present invention is shown in FIG.

  FIG. 1 is a cross-sectional view showing an example of the configuration of an ID card having a black coloring layer of the present invention.

  In FIG. 1, an ID card 10 has a structure in which a laser beam-irradiated black color developing layer 12, a transparent resin layer 13, a format printing layer 14, and a transparent resin layer 13 are laminated on a support 11 made of polyester or polycarbonate.

  FIG. 2 is a cross-sectional view showing an example of the configuration of an ID card having the color coloring layer of the present invention.

  In FIG. 2, an ID card 20 has a support 21 made of polyester or polycarbonate, a laser light irradiation yellow color layer 22, a transparent resin intermediate layer 23, a laser light irradiation cyan color layer 24, a transparent resin intermediate layer 23, a laser beam. The irradiation magenta coloring layer 25, the transparent resin layer 26, the format printing layer 27, and the transparent resin layer 26 are laminated.

  Next, details of each component of the ID card of the present invention will be described.

[Support]
In the ID card of the present invention, a support made of polyester or polycarbonate is used as the support.

  Examples of the polyester that can be used in the present invention include polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene terephthalate / isophthalate copolymer, and PET-G.

  In the support according to the present invention, for example, an IC memory, an optical memory, a magnetic memory or the like may be incorporated as necessary, and may be a single layer or a composite film of the above film. The thickness of the substrate is about 100 to 1000 μm, preferably 200 to 700 μm. A writing layer may be provided on the back side.

  In the ID card of the present invention, a black color layer or a color color layer, specifically a yellow color, magenta color, and cyan color color layer is formed on one side of the card substrate. It is characterized by having.

[Black color layer]
The black color-developing layer is a layer that develops black color by heat energy generated by laser light irradiation, and is formed on the card substrate. The black color-developing layer is preferably transparent before laser light irradiation, and develops black color by laser light irradiation. The material used for the black color forming layer used in the present invention is not particularly limited as long as it can be marked by laser light, and is not particularly limited to inorganic, metal, organic dye, polymer materials, etc. In addition, all material systems used for the write once optical recording medium are possible. The light absorption layer may be either a single film formed by vapor deposition or coating of a light absorption material, or a coating film formed by coating a coating solution dissolved or dispersed in a polymer. An inorganic and organic composite deposited film may also be used. It is also possible to form the light absorption layer on the thin film by any one of the methods described above, adhere the film to the card, and provide the light absorption layer on the card.

  For the purpose of optically clarifying the laser writing part and increasing the reading sensitivity, a reflective film layer is provided below the light absorption layer, or conversely, a coating layer such as an antireflection film layer or a hard coat layer is provided above the light absorption layer. You may laminate. In addition, a relatively soft buffer layer that can absorb volume changes caused by laser writing due to physical and chemical changes of the light absorption layer may be provided between the light absorption layer and the coating layer. In order to clarify the laser writing portion and facilitate detection of the laser writing position of the reading laser beam, a track serving as a guide for the laser writing position may be formed in a groove form or by printing.

  Laser writing must be non-rewritable and must be a physically and chemically irreversible change. Therefore, the principle of laser writing is that the light absorption layer absorbs the light energy of the laser light, and the components of the light absorption layer are thermally decomposed and written based on the heat generated by light-heat energy conversion in the layer. Is preferable from the viewpoint of stability.

  Specific examples of the black color forming layer include the following configurations, but are not limited thereto.

  There is a light absorbing layer material using a transparent resin and a light absorbing material, for example, a mixture of an acrylic resin and a light absorbing material (pigment, carbon black). Examples of the dye include metal phthalocyanine dyes, condensed polycyclic dyes, ionic dyes, cyanine dyes, naphthoquinone dyes, metal complex dyes, indoaniline dyes, and azo dyes. These material systems may be used alone or in combination. This color-developing layer is a layer having good absorbability of laser light of a specific wavelength, and for example, an Nd: YAG laser or the like can be used, and those having a thickness of about 1 to 50 μm are preferably used.

[Color development layer]
The color-developing layer has a heat-sensitive microcapsule containing a color-developing component in the layer, and a substantial portion outside the microcapsule that reacts with the polymerizable group and the color-developing component in the same molecule to cause color development. A coloring layer containing a colorless compound and a photopolymerization initiator.

  Specific embodiments include a microcapsule encapsulating an electron-donating colorless dye, a compound having an electron accepting group and a polymerizable group in the same molecule outside the microcapsule, and a color coloring layer containing a photopolymerization initiator. Yes, it is formed on the card substrate.

  This color-developing layer is formed by polymerizing and curing the photocurable composition outside the microcapsule by laser exposure, forming a latent image, and heating the electron-accepting group and polymerizable group present in the unexposed part. A compound contained in the same molecule moves in the color developing layer, reacts with the electron donating colorless dye in the microcapsule, and develops yellow, magenta or cyan.

  A conventionally well-known thing can be used as an electron-donating colorless dye. Specific examples thereof are shown below, but the electron-donating colorless dye that can be used in the present invention is not limited thereto. Specifically, phthalide compounds, fluoran compounds, phenothiazine compounds, indolylphthalide compounds, leucooramine compounds, rhodamine lactam compounds, triphenylmethane compounds, triazene compounds, spiropyran compounds, pyridine Examples thereof include various compounds such as phosphines, pyrazine compounds, and fluorene compounds.

  Examples of the phthalide compound include 3,3-bis (p-dimethylaminophenyl) -6-dimethylaminophthalide, 3,3-bis (p-diethylamino-o-butoxyphenyl) -4-azaphthalide, and the like. It is done.

  Examples of the fluorane compound include 2- (dibenzylamino) fluorane, 2-anilino-3-methyl-6-diethylaminofluorane, 2-anilino-3-methyl-6-dibutylaminofluorane, and the like.

  Examples of thiazine compounds include benzoyl leucon methylene blue and p-nitrobenzyl leucomethylene blue.

  Examples of the leucooramine compound include 4,4′-bis-dimethylaminobenzhydrin benzyl ether, N-halophenyl-leucooramine, N-2,4,5-trichlorophenylleucooramine and the like. .

  Examples of the rhodamine lactam compound include rhodamine-B-anilinolactam and rhodamine- (p-nitrino) lactam.

  Examples of spiropyran compounds include 3-methyl-spiro-dinaphthopyran, 3-ethyl-spiro-dinaphthopyran 3,3'-dichloro-spiro-dinaphthopyran, and the like.

  Examples of the pyridine-based and pyrazine-based compounds include compounds described in U.S. Pat. Nos. 3,775,424, 3,853,869, and 4,246,318.

  Examples of the fluorene compound include compounds described in JP-A No. 63-94878.

  In the ID card of the present invention, electron-donating colorless dyes for cyan, magenta and yellow coloring pigments are used. As the cyan, magenta and yellow coloring dyes, the respective dyes described in US Pat. No. 4,800,149 can be used. Further, as the electron donating colorless dye for yellow coloring dye, the dyes described in U.S. Pat. No. 4,800,148 can also be used. The dyes described in No. -53542 can also be used.

The amount of the electron-donating colorless dye used is preferably 0.01 to 3 g / m ² , and more preferably 0.1 to 1 g / m ² in each of the coloring layers for yellow coloring, magenta coloring and cyan coloring. When the amount used is less than 0.01 g / m ² , a sufficient color density may not be obtained, and when it exceeds 3 g / m ² , coating suitability may deteriorate. In the present invention, the color developing layers for yellow color development, magenta color development, and cyan color development have a multilayer structure, and a plurality of layers are stacked as shown in FIG.

  The electron accepting compound having a polymerizable group, that is, a compound having an electron accepting group and a polymerizable group in the same molecule has an electron donating property which has a polymerizable group and is one of color forming components. Any colorant can be used as long as it reacts with a colorless dye to develop a color and can photopolymerize to cure the film. Examples of the electron-accepting compound include 3-halo-4-hydroxybenzoic acid described in JP-A-4-226455, methacryloxyethyl ester of benzoic acid having a hydroxy group described in JP-A-63-173682, Acryloxyethyl ester, ester of benzoic acid having hydroxy group and hydroxymethylstyrene described in JP-A-59-83893, JP-A-60-141588, and JP-A-62-99190, hydroxy described in European Patent No. 29,323 Compounds that can be synthesized with reference to styrene, N-vinylimidazole complexes of zinc halides described in JP-A-62-167077 and 62-16708, electron-accepting compounds described in JP-A-63-317558, etc. Can be mentioned.

  Examples of the compound having the electron accepting group and the polymerizable group in the same molecule include styrenesulfonylamino salicylic acid, vinylbenzyloxyphthalic acid, zinc β-methacryloxyethoxysalicylate, zinc β-acryloxyethoxysalicylate, vinyl Roxyethyloxybenzoic acid, β-methacryloxyethylorcerinate, β-acryloxyethylorcerinate, β-methacryloxyethoxyphenol, β-acryloxyethoxyphenol, β-methacryloxyethyl-β-resorcinate, β- Acryloxyethyl-β-resorcinate, hydroxystyrenesulfonic acid-N-ethylamide, β-methacryloxypropyl-p-hydroxybenzoate, β-acryloxypropyl-p-hydroxybenzoate, methacryloxymethyl methacrylate Nord, acryloxy-methylphenol, methacrylamide propane sulfonic acid, acrylamido propane sulfonic acid, and the like, is not limited thereto.

  The electron-accepting compound having a polymerizable group is used in combination with the electron-donating colorless dye. In this case, the amount of the electron-accepting compound used is preferably 0.5 to 20 parts by mass and more preferably 3 to 10 parts by mass with respect to 1 part by mass of the electron-donating colorless dye used. If the amount is less than 0.5 parts by mass, a sufficient color density may not be obtained. If the amount exceeds 20 parts by mass, the sensitivity may be lowered or the coating suitability may be deteriorated.

  Next, the photopolymerization initiator used in the coloring layer for yellow coloring, magenta coloring and cyan coloring according to the present invention will be described.

  The photopolymerization initiator can generate radicals by light exposure to cause a polymerization reaction in the layer, and can promote the reaction. By this polymerization reaction, the recording layer film is cured, and a latent image having a desired image shape can be formed.

  A photoinitiator can be suitably selected from well-known things. Examples of known photopolymerization initiators include those described in US Pat. No. 4,950,581 (column 20, line 35 to column 21, line 35). As the compound, a triazine compound such as trihalomethyltriazine such as 2,4-bis (trichloromethyl) -6- (4-stilphenyl) -s-triazine, or a cationic photopolymerization initiator such as benzoyl peroxide may be used. Can do.

  As a photoinitiator, what contains the spectral sensitizing compound which has a maximum absorption wavelength in 300-1000 nm, and the compound which interacts with this spectral sensitizing compound is preferable. Specifically, spectral sensitizing compound dye / boron compound and the like can be mentioned.

  Examples of boron compound that interacts with the spectral sensitizing compound include organic borate compounds described in JP-A-62-143044, JP-A-9-188585, JP-A-9-188686, JP-A-9-188710, and the like. Alternatively, spectral sensitizing dye-based borate compounds and organic borate salt compounds obtained from cationic dyes can be used.

  As the spectral sensitizing compound, a spectral sensitizing dye having a maximum absorption wavelength in a wavelength region of 300 to 1000 nm is preferable. As a light source used for image exposure, a light source such as blue, green, and red, an infrared laser, or the like can be selected. For example, in the case of forming a color image in a multicolor ID card in which monochromatic color coloring layers that develop colors having different hues are laminated, spectral sensitizing dyes having different absorption wavelengths in the monochromatic color coloring layers having different coloring hues. By using a light source suitable for the absorption wavelength, a color image can be obtained.

  The spectral sensitizing dye can be appropriately selected from known compounds, and includes, for example, the following patent publications relating to “compounds that interact with spectral sensitizing compounds” and “Research Disclosure, Vol. 200, 1980”. December, Item 20036 "and" Sensitizer "(p.160-p.163, Kodansha; Katsumi Tokumaru, Nobu Okawara, edited by 1987), and the like. -Ketocoumarin compounds, thiopyrylium salts, naphthothiazole merocyanine compounds, merocyanine compounds and the like. The amount of the spectral sensitizing compound used is preferably 0.1 to 5% by mass, more preferably 0.5 to 2% by mass, based on the total mass of the light and heat sensitive recording layer or the light and pressure sensitive recording layer.

  The total amount of the spectral sensitizing dye and the organic borate compound in the photopolymerization initiator is preferably used in the range of 0.1 to 10% by mass with respect to the amount of the compound having a polymerizable group. Although it is more preferable to use in the range of ˜5% by mass, it is most preferable to use in the range of 0.1 to 1% by mass.

  In the color coloring layer according to the present invention, it is preferable to use the coloring component of the electron donating colorless dye in a microcapsule. Examples of the microencapsulation method include a method using coacervation of a hydrophilic wall forming material described in US Pat. Nos. 2,800,457 and 2,800,458, US Pat. No. 3,287, No. 154, British Patent No. 990,443, Japanese Patent Publication No. 38-19574, No. 42-446, No. 42-771, etc., US Pat. No. 3,418,250, No. 3 No. 3,660,304, a method using polymer precipitation, a method using an isocyanate polyol wall material described in US Pat. No. 3,796,669, and an isocyanate wall material described in US Pat. No. 3,914,511. Urea-formaldehyde system and urea formaldehyde described in US Pat. Nos. 4,001,140, 4,087,376 and 4,089,802 A method using a hydr-resorcinol-based wall forming material, a method using a wall forming material such as melamine-formaldehyde resin and hydroxybrovir cellulose described in US Pat. No. 4,025,455, Japanese Patent Publication No. 36-9168, JP In situ method by polymerization of monomers described in JP-A-51-9079, British Patent No. 952,807, Electrolytic dispersion cooling method described in US Pat. No. 965,074, US Pat. No. 3,111,407, British Patent Conventionally known methods such as the spray drying method described in No. 930,422, the method described in JP-B-7-73069, JP-A-4-101858 and JP-A-9-263057 can be used.

  As a method for microencapsulation, an oil phase prepared by dissolving or dispersing a coloring component in a hydrophobic organic solvent is mixed with an aqueous phase in which a water-soluble polymer is dissolved, and emulsified and dispersed by means such as a homogenizer. An interfacial polymerization method in which a polymer formation reaction is caused at the oil droplet interface by heating to form a microcapsule wall of the polymer substance can be employed, but is not limited thereto.

  The preferred microcapsules in the color-developing layer according to the present invention are such that, at room temperature, contact between substances inside and outside the microcapsules is hindered by the substance-separating action of the microcapsule walls, and only when heat is applied above a certain value, It is possible to make contact with other substances. This phenomenon can be freely controlled as a change in the physical properties of the microcapsule by appropriately selecting a material of the microcapsule wall, a substance encapsulating the microcapsule, an additive, and the like.

  The material of the microcapsule wall that can be used in the present invention is added inside or outside the oil droplet. Examples of the material of the microcapsule wall include polyurethane, polyurea, polyamide, polyester, polycarbonate, urea-formaldehyde resin, melamine resin, polystyrene, styrene methacrylate copolymer, styrene-acrylate copolymer, and the like. Among these, polyurethane, polyurea, polyamide, polyester, and polycarbonate are preferable, and polyurethane and polyurea are more preferable.

  In the present invention, when forming a microcapsule containing a color forming component, the color forming component to be included may exist in a solution state or a solid state in the capsule.

  In general, the color developing component to be included can be appropriately selected from solvents having a high boiling point, such as phosphoric acid esters, phthalic acid esters, acrylic acid esters, methacrylic acid esters, other carboxylic acid esters, and fatty acid amides. Alkylated biphenyl, alkylated terphenyl, chlorinated paraffin, alkylated naphthalene, diallylethane, compounds solid at room temperature, oligomer oil, polymer oil, and the like can be used.

  The average particle size of the microcapsules is preferably 20 μm or less, more preferably 5 μm or less, and particularly preferably 0.1 μm or more.

  Examples of the binder of the color coloring layer according to the present invention include water-soluble binders such as gelatin and polyvinyl alcohol, polystyrene, polyvinyl formal, polyvinyl butyral, polymethyl acrylate, polybutyl acrylate, polymethyl methacrylate, polybutyl methacrylate and the like. Acrylic resins such as copolymers, phenol resins, styrene-butadiene resins, ethyl cellulose, epoxy resins, urethane resins, and other solvent-soluble polymers, or polymer latexes thereof can also be used.

  The multi-color color forming layer composed of a multilayer according to the present invention is formed by laminating a plurality of monochromatic color forming layers on a support, and each of the color forming layers contains a microcapsule containing a color forming component having a different color hue. A multicolored color-developing layer can be obtained by containing a photopolymerizable composition that is sensitive to light of different wavelengths. The photopolymerizable composition can be a photopolymerizable composition that is sensitive to light of different wavelengths by using spectral sensitizing compounds having different absorption wavelengths. In this case, an intermediate layer can be provided between the single color development layers, and a protective layer can be provided on the uppermost color development layer.

  The multicolor color developing layer according to the present invention includes a color developing layer including a microcapsule containing a color developing component that produces yellow color, a color developing layer that includes a microcapsule containing a color developing component that produces magenta color, and a micro containing a color developing component that produces cyan. It is preferable to comprise a coloring layer containing capsules.

[Anchor varnish layer]
In the ID card of the present invention, the format information is printed and printed on the laser light-irradiated black color-developing layer or the laser light-irradiated color color-developing layer, but before the format information is printed, the anchor layer using the anchor varnish Is preferably formed by printing.

  As an anchor varnish layer, it is preferable that a tensile elasticity modulus (ASTM D790) is 196 Mpa or more, and it is preferable that it is 1960 Mpa or less.

  The thickness of the anchor varnish layer is preferably 2 μm or more (particularly 5 μm or more) from the viewpoint of the cushioning effect, and the thickness of the anchor varnish layer is usually 1 from the viewpoint of overall thickness and curl suppression. ˜100 μm, preferably 3˜30 μm.

  Examples of the material for forming the anchor varnish layer include polyethylene resin, polypropylene resin, polybutadiene resin, ethylene-vinyl acetate copolymer resin, ethylene-ethyl acrylate copolymer resin, styrene-butadiene-styrene block copolymer. Polyolefin resin such as coalesced resin, styrene-isoprene-styrene block copolymer resin, styrene-ethylene-butadiene-styrene block copolymer resin, styrene-hydrogenated isoprene-styrene block copolymer resin is flexible. This is preferable.

[OP varnish layer]
In the ID card of the present invention, it is preferable to print an OP varnish layer at least on the print area of the format information after printing the format information.

  OP of the OP varnish according to the present invention is an abbreviation of “overprint”, and the OP varnish is a colorless and almost transparent solution applied as a final ink to a printed material in a printing process. Various compositions of the OP varnish layer can be suitably used, and the OP varnish layer is applied to the surface of the image receiving layer by an offset printing machine, a relief printing machine, a gravure printing machine, a dedicated varnishing machine or the like.

  Examples of the composition of the OP varnish layer that can be used in the present invention include, for example, resins such as phenol resin, maleic acid resin, hydrogenated rosin ester, and dry oils such as linseed oil, cinnabar oil, dehydrated castor oil, , Cobalt dryer, and if necessary, additives such as gelling agent, extender, vinyl chloride / vinyl acetate copolymer resin, acrylic ester / styrene copolymer resin with low polymerization degree, Various acrylic copolymer resins used in the form of colloidal dispersions or emulsions, resins such as high acid number rosin maleic acid resins, ceramics and their derivatives, adjuvants such as alcohols and cellosolves, and if necessary, Water additives, plasticizers, waxes, additives such as moisture-proofing agents, or polyisocyanate polymers and polyols And the like thermosetting OP varnish composition Ranaru thermoset polyurethane.

  As the printing of the OP layer, it is applied by an offset printing method, a gravure printing method, a silk screen method or the like, and forms a substantially colorless and transparent film after drying.

  When applied by offset printing, the OP varnish composition includes, for example, rosin-modified phenolic resin, petroleum resin, alkyd resin, or resins such as these dry oil-modified resins and dryness such as linseed oil, tung oil, soybean oil, etc. It is composed of additives such as oil, normal paraffin, isoparaffin, aromatic hydrocarbon, naphthene, α-olefin or mixtures thereof, dryers, drying inhibitors and the like.

  When applying by gravure printing, OP varnish composition includes acrylic resin, vinyl chloride-vinyl acetate copolymer resin, polyester resin, urethane resin, chlorinated polyolefin resin, chlorinated rubber resin, ethylene-vinyl acetate copolymer. A resin selected from the group consisting of a polymer resin, a polyamide resin, and a cellulose resin, and a solvent such as toluene, ethyl acetate, isobutyl acetate, methyl ethyl ketone, and methyl isobutyl ketone can be used.

  When the OP varnish composition is an active energy ray curable OP varnish composition, the active energy ray curable OP varnish composition can be cured by active energy rays such as ultraviolet rays or electron beams, and is normally used. An active energy ray curable OP varnish composition for offset printing, an active energy ray curable OP varnish composition for silk screen printing, an active energy ray curable OP varnish composition for letterpress printing, and the like can be used. Such an active energy ray-curable OP varnish composition basically contains an active energy ray-curable resin component composed of a monomer or oligomer having an ethylenically unsaturated double bond, and if necessary, photocured. An initiator, resin, sensitizer, extender pigment, and other various additives may be included. Examples of active energy ray-curable resin components comprising monomers or oligomers having an ethylenically unsaturated double bond include (meth) acrylic acid esters such as ethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate 1,4-butanediol di (meth) acrylate, polyethylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, ditrimethylolpropane tetra (meth) acrylate, pentaerythritol tri (tetra) (meth) acrylate, It is a (meth) acrylate of a polyhydric alcohol such as dipentaerythritol penta (hexa) (meth) acrylate. A mixture of two or more of these can also be used.

  As a photocuring initiator that can be used in the active energy ray-curable OP varnish composition, a commercially available photocuring initiator can be used. Examples of such photocuring initiators include, for example, Irgacure 651, Irgacure 184, Darocur 1173, Irgacure 907, Irgacure 369 (above, manufactured by Ciba Specialty Chemicals); (Nippon Kayaku Co., Ltd.); benzophenone, acetophenone, 4,4'-bisdiethylaminobenzophenone, benzoin, benzoin ethyl ether, and the like, which can be used alone or in combination of two or more. Moreover, you may use together aliphatic amines, such as n-butylamine, a triethylamine, ethyl p-dimethylaminobenzoate, and an aromatic amine as a sensitizer with a photocuring initiator.

  The resin that can be blended in the active energy ray-curable OP varnish composition is used as necessary for the purpose of improving the strength of the OP varnish composition film and improving the adhesion of the varnish to the printing paper. . As such a resin, an alkyd resin, a polyester resin, or a petroleum resin can be used, and a resin modified with (meth) acrylic acid can also be used. Examples of the (meth) acrylic acid modified resin include urethane (meth) acrylate, epoxy (meth) acrylate, polyol (meth) acrylate and the like having a (meth) acryloyl group in one molecule.

[Thermal adhesive resin layer]
In the ID card of the present invention, it is preferable to provide a transfer foil along with the printing of format information on the color-developing layer. For example, it is preferable to provide a thermal adhesive resin layer by a thermal transfer method.

  In the present invention, the heat-adhesive resin layer protects an image by transferring a substantially transparent heat-adhesive resin transfer foil by applying heat and pressure onto a card provided with format information printing.

  The thermoadhesive resin transfer foil is configured as a transfer foil comprising a release layer, a transparent resin layer, an intermediate layer, an adhesive layer and the like on a film support.

  Examples of the support include polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene terephthalate / isophthalate copolymer, polyolefin resins such as polyethylene, polypropylene, and polymethylpentene, polyvinyl fluoride, polyvinylidene fluoride, and poly-4-fluoride. Polyfluorinated ethylene resins such as ethylene fluoride, ethylene-tetrafluoroethylene copolymer, polyamides such as nylon 6, nylon 6.6, polyvinyl chloride, vinyl chloride / vinyl acetate copolymer, ethylene / vinyl acetate copolymer Polymers, ethylene / vinyl alcohol copolymers, vinyl polymers such as polyvinyl alcohol and vinylon, cellulose resins such as cellulose triacetate and cellophane, polymethyl methacrylate, polyethyl methacrylate, polyacrylate Acrylic resin such as ethyl acrylate and polybutyl acrylate, synthetic resin sheet such as polystyrene, polycarbonate, polyarylate and polyimide, or paper such as fine paper, thin paper, glassine paper and sulfuric acid paper, single layer such as metal foil Or a laminate of two or more layers. The thickness of the support of the present invention is 10 to 200 μm, desirably 15 to 80 μm. If the thickness is 10 μm or less, the support is broken during transfer, which is a problem. In the specific release layer of the present invention, polyethylene terephthalate is preferable.

  The support can have irregularities as necessary. Examples of the unevenness creation means include matting agent kneading, sandblasting, hairline processing, mat coating, or chemical etching. In the case of mat coating, either organic or inorganic materials may be used. Examples of inorganic substances include silica described in Swiss Patent No. 330,158 and the like, glass powder described in French Patent No. 1,296,995 and the like, and alkali described in British Patent No. 1,173,181 and the like. Earth metals, carbonates such as cadmium and zinc, and the like can be used as the matting agent. Examples of organic substances include starch described in U.S. Pat. No. 2,322,037 and the like, starch derivatives described in Belgian Patent 625,451 and British Patent 981,198, and Japanese Patent Publication No. 44-3643. Polyvinyl alcohol described, polystyrene or polymethacrylate described in Swiss Patent No. 330,158, polyacrylonitrile described in US Pat. No. 3,079,257, US Pat. No. 3,022,169 etc. An organic matting agent such as a polycarbonate can be used. The method of attaching the matting agent may be a method in which the matting agent is dispersed and applied in advance, or a method of spraying the matting agent after the coating solution is applied and before the drying is completed may be used. Moreover, when adding several types of mat agents, you may use both methods together. When uneven processing is performed in the present invention, it can be applied to one or more of the transfer surface and the back surface.

  As the release layer, resins such as acrylic resins having a high glass transition temperature, polyvinyl acetal resins, poly vinyl butyral resins, waxes, silicon oils, fluorine compounds, water-soluble polyvinyl pyrrolidone resins, polyvinyl alcohol resins, Si-modified Examples include polyvinyl alcohol, methyl cellulose resin, hydroxy cellulose resin, silicone resin, paraffin wax, acrylic modified silicone, polyethylene wax, ethylene vinyl acetate, and other resins, as well as polydimethylsiloxane and modified products thereof such as polyester modified silicone, acrylic modified. Oils and resins such as silicone, urethane modified silicone, alkyd modified silicone, amino modified silicone, epoxy modified silicone, polyether modified silicone, etc. The cured product, and the like. Other fluorinated compounds include fluorinated olefins and perfluorophosphate ester compounds. Preferred olefin compounds include dispersions such as polyethylene and polypropylene, and long-chain alkyl compounds such as polyethyleneimine octadecyl. These release agents having poor solubility can be used after being dispersed. When transferring two transfer foils, a thermoplastic elastomer may be added. Specific examples of thermoplastic elastomers are styrene (styrene block copolymer (SBC)), olefin (TP), urethane (TPU), polyester (TPEE), polyamide (TPAE), and 1,2-polybutadiene. , Vinyl chloride (TPVC), fluorine-based, ionomer resin, chlorinated polyethylene, silicone-based, and the like, which are specifically described in the 1996 edition of “12996 Chemical Products” (Chemical Industry Daily).

  A thermoplastic elastomer having a tensile elongation of 100% or more composed of a block polymer of polystyrene and polyolefin preferably used in the present invention is a thermoplastic resin (hereinafter referred to as a linear or branched saturated alkyl block having 10 or less carbon atoms). Also referred to as thermoplastic resin S1). In particular, styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-ethylene / butylene-styrene (SEBS), styrene-ethylene / Examples include propylene-styrene (SEPS), styrene-ethylene / propylene (SEP) block polymers, and the like.

  Moreover, you may use a thermosetting resin layer between a mold release layer, a transparent resin layer, or an actinic-light cured layer as needed. Specific examples include polyester resins, acrylic resins, epoxy resins, xylene resins, guanamine resins, diallyl phthalate resins, phenol resins, polyimide resins, maleic acid resins, melamine resins, urea resins, polyamide resins, urethane resins, and the like.

  The transparent resin layer of the transfer foil is a polyvinyl monomer such as polyvinyl butyral resin, polyurethane resin, polyamide resin, polyester resin, epoxy resin, novolac resin, styrene, paramethyl styrene, methacrylate ester, acrylate ester, cellulose type, You may use together other arbitrary high molecular polymers, such as thermoplastic polyester and a natural resin. In addition, the industry known in Kiyoshi Akamatsu's supervision, “New Technology of Photosensitive Resins” (CMC, 1987) and “Chemical Products of 10188”, pages 657-767 (Chemical Industry Daily, 1988) These organic polymer polymers may be used in combination. In the present invention, it is preferable to provide a light or / thermosetting layer with a transfer foil for the purpose of protection on the image recording body. In some cases, light or / heat is used to apply an ultraviolet curable liquid onto the image recording body. In addition to the curable layer, it is possible to have a general transparent resin layer.

  The light or thermosetting layer is not particularly limited as long as it is a material composed of the above composition. When a light or thermosetting layer is used, it is preferable that photocuring or thermosetting is performed in advance, but in some cases, a semi-cured light or thermosetting layer may be used.

  The thickness of the transparent resin layer is preferably 0.3 to 50 μm, more preferably 0.3 to 30 μm, and particularly preferably 0.3 to 25 μm.

  The intermediate layer of the transfer foil is preferably composed of one or more intermediate layers. In some cases, it may be interposed as a primer layer or a barrier layer, or the adhesion between the layers may be further improved.

  For example, vinyl chloride resin, polyester resin, acrylic resin, polyvinyl acetal resin, polyvinyl butyral resin, polyvinyl alcohol, polycarbonate, cellulose resin, styrene resin, urethane resin, amide resin, urea resin, Epoxy resins, phenoxy resins, polycaprolactone resins, polyacrylonitrile resins, SEBS resins, SEPS resins, and modified products thereof can be used.

  Among the resins described above, vinyl chloride resins, polyester resins, acrylic resins, polyvinyl butyral resins, styrene resins, epoxy resins, urethane resins, urethane acrylate resins, SEBS resins, and SEPS resins are preferable. These resins can be used alone or in combination of two or more.

  As a specific compound, a thermoplastic resin composed of a block polymer of polystyrene and polyolefin, polyvinyl butyral, and the like are preferable. In the intermediate layer of the present invention, as the polyvinyl butyral resin having a polymerization degree of 1000 or more, SRECEK BH-3, BX-1, BX-2, BX-5, BX-55, BH-S manufactured by Sekisui Chemical Co., Ltd. Denkabutyral # 4000-2, # 5000-A, # 6000-EP manufactured by Denki Kagaku Kogyo Co., Ltd. are commercially available. As the thermosetting resin of polybutyral for the intermediate layer, there is no limitation on the degree of polymerization before thermosetting, and a resin with a low degree of polymerization may be used. For thermosetting, an isocyanate curing agent, an epoxy curing agent, or the like can be used. Is preferably 1 to 24 hours at 50 to 90 ° C. The thickness of the intermediate layer is preferably 0.1 to 1.0 μm. Further, other additives may be used without any particular limitation.

  As the adhesive layer of the transfer foil, as the heat sticking resin, ethylene vinyl acetate resin, ethyne ethyl acrylate resin, ethylene acrylic resin, ionomer resin, polybutadiene resin, acrylic resin, polystyrene resin, polyester resin, olefin resin, urethane resin, A tackifier (for example, a phenol resin, a rosin resin, a terpene resin, a petroleum resin, etc.) may be mentioned, and a copolymer or a mixture thereof may be used. Specifically, as a urethane-modified ethylene ethyl acrylate copolymer, Hitech S-6254, S-6254B, S-3129 and the like manufactured by Toho Chemical Industry Co., Ltd. are commercially available, and as a polyacrylic acid ester copolymer, Japan. Jurimer AT-210, AT-510, AT-613 manufactured by Junyaku Co., Ltd., plus size L-201, SR-102, SR-103, J-4, etc. manufactured by Kyoyo Chemical Industry Co., Ltd. are commercially available. Yes. The mass ratio of the urethane-modified ethylene ethyl acrylate copolymer and the polyacrylic ester copolymer is preferably 9: 1 to 2: 8, and the thickness of the adhesive layer is preferably 0.1 to 1.0 μm.

  Transfer of the transfer foil to the transfer material can usually be performed using a means that can perform heating while heating, such as a thermal head, a heat roller, or a hot stamp machine. Specifically, when using a hot stamping machine, the surface temperature is 150 to 300 ° C., and the transfer is performed by applying heat for 0.5 to 10 seconds at a pressure of 5 to 50 MPa using a heat roller having a diameter of 5 cm and a rubber hardness of 85. It can be performed.

[Hologram transfer foil]
In the ID card of the present invention, it is preferable that a hologram transfer foil is provided on the color developing layer together with the printing of format information.

  The hologram transfer foil layer according to the present invention can be formed by transferring the hologram transfer foil by heating and pressing on a card provided with format information printing.

  As the hologram transfer foil, a relief hologram or a Lippmann hologram can be used.

As a relief type hologram foil, a hologram forming layer and a hologram effect layer are laminated in this order on a support film. Specifically, the hologram transfer foil is a resin layer that is solid at room temperature and has thermoformability on the surface of a support film such as a polyethylene terephthalate film, for example, a thermoplastic resin that is solid at room temperature. An electron beam curable resin layer (hologram forming layer) is formed, and a hologram original plate on which the hologram interference pattern is formed in a concavo-convex shape is pressed and compressed, and the concavo-convex shape is transferred to the resin surface and cured. Further, a thin film made of a material (for example, a vapor deposition film of TiO ₂ , SiO ₂ , ZnS, etc.) having sufficient transparency on the uneven surface and large reflectivity at a certain angle and having a refractive index different from that of the hologram forming layer It can be obtained by forming a hologram effect layer.

  Between the support film and the hologram forming layer, there is a release layer, and in some cases an intermediate layer. On the hologram effect layer, there is an adhesive layer for adhering to the card, and in some cases, the hologram effect layer and the adhesive layer. Has an intermediate layer in between.

  As the release layer, the adhesive layer, and the intermediate layer, the same layers as those used for the thermal adhesive resin layer can be applied.

  A hologram in which an image is reproduced with white light such as daylight or illumination light is excellent in decoration because the hologram image is observed even in a normal state. On the other hand, the type in which an image is reproduced by laser light is excellent in discoverability of alteration.

[Printing format information]
The ID card of the present invention is characterized in that the format information is printed by various types of printing.

  The format information referred to in the present invention is, for example, attribute information such as name, address, date of birth, qualification, etc., and attribute information is usually recorded as character information, and format printing is conventionally performed by offset printing, gravure printing, Silk printing, screen printing, intaglio printing, letterpress printing, ink jet method, sublimation transfer method, electrophotographic method, thermal melting method, retransfer method, etc., but in the present invention, offset printing, It is performed by a printing method such as letterpress printing.

  As the format information printing method, planographic offset printing and letterpress printing are preferable, and composite printing including printing of both planographic offset printing and letterpress printing is also preferably applicable.

(Offset printing using process ink)
The invention according to claim 1 or claim 6 is characterized in that the format information is printed by offset printing using process ink, and is preferably printed by lithographic offset printing.

  The process ink referred to in the present invention is a combination of inks capable of color reproduction by four-color printing of yellow (Yellow), magenta (Magenta), cyan (Cyan), and black (Black), and is defined in the present invention. In the ID card consisting of the structure, the format information is printed by lithographic offset printing using process ink, so that clear and high-quality printing is performed, suitable for mass production, excellent durability, and long-term It is possible to produce an ID card that can maintain the information vividly and store personal information reliably.

  In lithographic offset printing, the height difference between the image area and the non-image area is not uneven, and is composed of almost the same plane. ), And then transferred to the substrate. In lithographic offset printing, water called dampening water is usually used because the ink oil and water are less likely to mix.

(Printing using special ink or special ink located on coordinates outside the color reproduction area)
The invention according to claim 2 or claim 7 is characterized in that the format information is printed by printing using special color ink or special ink located on coordinates outside the color reproduction region.

  As the printing method, offset printing is preferable, and printing can be performed by offset printing such as planographic offset printing and letterpress offset printing.

  The special color ink as used in the present invention is a color ink formed by appropriately blending the process inks yellow, magenta, cyan, and black. For example, inks such as blue, green, red, violet, purple, and orange are used. Can be mentioned.

  Examples of the special ink located on the coordinates outside the color reproduction region in the present invention include pearl ink, metallic ink, and fluorescent ink.

  In the present invention, a method of forming image information using a color change ink called a pearl ink whose color changes depending on an angle viewed on an image of a card is also mentioned. The pearl ink contains thin metal particles or the like as a pigment, and has a property of multiply reflecting light by the metal particles. The reflected light has a light wavelength, that is, a color, which is determined by the thickness and particle size of the metal particles, and causes the color change when the lights interfere with each other. In the present invention, the pearl ink having the property of changing the color due to the interference of the reflected light is used for the image information formed on the ID card, so that when the created card is copied, the area where the image is formed with the pearl ink. This makes it possible to prevent forgery of the card by copying. Further, it is possible to easily discriminate between regular cards and copies.

  Pearl ink contains pearl pigment, and pearl pigment used to be pearl powder or fine powder in the inner part of shells in the past, but now the outer side of fine flakes (flakes) is oxidized with metal. A material or a mixture of metal oxides is mainly used.

The fine flakes include, for example, mica, talc, kaolin, bismuth oxychloride, glass flakes, SiO ₂ flakes, or synthetic ceramic flakes, and the metal oxide covering the outside of these fine flakes. _{examples, TiO 2, Fe 2 O 3} , SnO 2, CrO 3, there is ZnO. Among these combinations, mica, glass flakes, or SiO ₂ flakes coated with TiO ₂ or Fe ₂ O ₃ are preferable. The size of the individual flakes of the pearl pigment is 1 to 100 μm. As the pearl pigment for pearl ink, the above-mentioned pearl pigments may be made by themselves, but use commercially available products such as the product name “Iriodin” manufactured by Merck and the product name “Infinite Color” manufactured by Shiseido Co., Ltd. Can do.

  The metallic ink used in the ID card of the present invention is preferably a printing method that can form a thick image film, obtain a metallic luster with a large density of metal powder, and a relatively coarse particle size. It is desirable to adopt an image forming method that satisfies the durability that the metallic ink image does not peel off from the image forming layer even when an external force such as twisting is applied, and the weather resistance and friction resistance that develops a metallic luster over a long period of time. As a technique for forming such a metallic ink image having excellent durability, for example, a printing technique using a metallic ink disclosed in JP-A-8-290646 can be cited.

  Metallic ink generally refers to ink containing metal powders such as metal flakes that exhibit a metallic luster by reflecting light, or powders that change the refractive index. It is made by mixing. For example, for gold ink, brass powder or yellow colored aluminum powder is used. Moreover, what changed the color tone, such as a red mouth and a blue mouth, is obtained by adjusting the zinc content in brass or adjusting the coloring of the aluminum foil. Aluminum powder is used for the silver ink.

  The metallic ink used in the present invention is used by appropriately adjusting the particle size and density of the metal powder according to the ID card production method.

  In this way, the ID card of the present invention is a metal that is unique to the metallic ink of the regular card even if the ID card is copied by color copy by creating the card using metallic ink for printing the format information. The texture of the material cannot be reproduced. Then, it is possible to visually discriminate between a genuine product and a fake product with a considerable degree of accuracy by simply giving a metallic luster to a specific pattern in the image information created on the ID card.

  In addition, as the material of the fluorescent ink, for example, a material containing an inorganic fluorescent pigment, an organic fluorescent pigment, a vehicle or the like having a particle size of 0.7 to 50 μm at a mass ratio of 15 to 45% is used.

As an inorganic fluorescent pigment, it is excellent in durability and weather resistance. For example, crystals such as oxides such as Ca, Ba, Mg, Zn, and Cd, sulfides, silicates, phosphates, and tungstates are mainly used. As a component, a pigment obtained by adding a metal element such as Mn, Zn, Ag, Cu, Sb, Pb, or a rare earth element such as a lanthanoid as an activator, for example, JP-A-50-6410, said 61-65226 Patent, the 64-22987 Patent, the 64-60671 Patent, can be appropriately used inorganic phosphors described in JP-a 1-168911 Patent. as the crystal matrix, Y ₂ Metal oxides typified by O ₂ S, Zn ₂ SiO ₄ , Ca ₅ (PO ₄ ) ₃ Cl, and sulfides typified by ZnS, SrS, CaS, etc., Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, H , Er, Tm, ions or Ag rare earth metal such as Yb, Al, Mn, is a combination of metal ions such as Sb as an activator or co-activator preferred.

  The crystal matrix and the activator or coactivator are not particularly limited in the composition of the elements, and can be used even if they are partially replaced with elements of the same family, as long as they absorb visible light from the ultraviolet to the blue region. Although any combination can be used, it is preferable to use an inorganic oxide phosphor or an inorganic halide phosphor.

  As the organic fluorescent pigment, since it can be made small in particle size, it is easily converted into an ink. And compounds having a benzene ring, such as pigments and anthracene.

  As the vehicle, for example, a vehicle having no absorption region in the visible light region having a wavelength of 400 to 700 nm is used. From the viewpoint of high thermoplasticity (low thermosetting property), for example, natural resin (for example, , Protein, rubber, cellulose, shellac, copal, starch, rosin, etc.), vinyl resin, acrylic resin, styrene resin, polyolefin resin, novolac phenol resin, resol phenol resin, urea resin, melamine resin, polyurethane Resins, epoxies, and unsaturated polyesters are used. Preferably, a photopolymerization curable type or electron beam curable type acrylic resin which is not easily contaminated because of no solvent is used.

  Examples of the special ink that can be used in the ID card of the present invention include, in addition to the above-described special inks, infrared absorbing ink, phosphorescent ink, temperature indicating ink, hue change ink, and the like.

(Lithographic offset printing using carbonless black ink)
The invention according to claim 3 or claim 8 is characterized in that the format information is printed by printing using at least one kind of carbonless black ink.

  The carbonless black ink as used in the present invention is a process ink, such as yellow, magenta, and cyan inks, for example, 1: 1: 1 without using black pigment carbon black. It is an ink prepared by mixing a resin, a matting agent or the like as an additive as required.

  Next, other elements related to the ID cart of the present invention will be described.

  In the present invention, after the format information is printed, it is preferable to print at least the transparent resin layer provided on the format information printing area by a printing method other than lithographic offset printing.

  As printing methods other than lithographic offset printing, for example, gravure printing, silk printing, screen printing, intaglio printing, relief printing, ink jet method, sublimation transfer method, electrophotographic method, heat melting method, retransfer method, etc. Among them, it is preferable to print the transparent resin layer 2 by letterpress printing from the viewpoint that the object effect of the present invention can be exhibited.

  In the ID card of the present invention, it is preferable that the lithographic offset printing used for printing the format information is lithographic water offset printing which is a method of applying dampening water with a dampening water roller or the like. If necessary, lithographic waterless offset printing without using dampening water can also be used.

  In the ID card of the present invention, it is preferable that the plate used for lithographic offset printing is a fair dot screen.

  In general, as a gradation reproduction method for color printing, AM screen (Amplitude Modulation) that expresses gradation by the size of halftone dots (for example, square, chain, round shape) is known. The tone is reproduced in a regular arrangement with halftone dots of different sizes with roundness. However, because the halftone dots are arranged at a constant pitch on the AM screen, Rosetta moire, interference moire, tone jump Such a problem occurs. On the other hand, there is an FM screen (Frequency Modulation) that arranges dots of the same shape randomly and changes the dot density per fixed area to express gradation, and this method has achieved high-definition print quality. However, since the density of unit dots is extremely high in the middle tone portion, it has a drawback that it is difficult to print compared to the AM screen.

  In recent years, a method that uses the dot structure and the arrangement of each of the above methods and uses the dot density and the shape according to the density of an image, that is, a fair dot screen has been developed in recent years.

  In the fair dot screen, in a highlight area with a density of 1 to 10% and a shadow area with a density of 90 to 99%, a halftone dot having a certain size is used to express gradation by changing the density as in the FM screen. . On the other hand, in the halftone region having a density of 10 to 90%, the dot size (indefinite shape) is changed similarly to the AM screen, and the dot arrangement is randomly arranged as in the FM screen. The occurrence of interference due to differences is reduced.

  In the present invention, the use of a plate composed of a fair dot screen is preferable from the viewpoint of controlling the graininess and obtaining a high-quality image excellent in tone reproducibility.

  In the ID card of the present invention, the entire back surface of the card is preferably subjected to resin laminating or transparent resin layer printing. Examples of these coating methods include those described in Convertec (1990.1-19933.3), and examples of the resin laminating method include wet lamination, dry lamination, and non-solvent. Lamination, extrusion lamination, etc. can be mentioned, and as a transparent resin layer printing method, for example, gravure printing, offset printing, flexographic printing and the like can be used.

  Examples of the resin used for the resin laminating process or transparent resin layer printing include acrylic resins such as acrylic acid esters and methacrylic acid esters, polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polycarbonate, and polyarylate. Polyvinyl chloride, polyvinylidene chloride, polyvinylidene fluoride, polyolefin resins such as polyethylene, polypropylene and polystyrene, polyamide resins such as nylon and aromatic polyamide, polyetheretherketone, polysulfone, polyethersulfone, polyimide, polyetherimide , Polyparabanic acid, phenoxy resin, epoxy resin, urethane resin, melamine resin, alkyd resin, phenol resin, fluororesin, silicone resin The resin that forms this resin laminate layer is preferably a resin that has a small neck-in and good drawdown properties, such as high-density polyethylene, medium-density polyethylene, low-density polyethylene, and polypropylene. Polybutene, polypentene, polystyrene, polyolefin resins such as ethylene-vinyl acetate copolymer, polyester resins such as polyethylene terephthalate, ionomer resins, nylon, and polyurethane. Among these, polyolefin resins are preferable, and high density polyethylene, medium density polyethylene, low density polyethylene, polypropylene, polybutene, polypentene, ethylene-polypropylene copolymer, etc. are used alone or in admixture of two or more resins. Is preferred.

  EXAMPLES Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto. Unless otherwise specified, “part” represents “part by mass”.

Example 1
According to the following content, the ID card which formed the black image and the black character information by laser beam irradiation was produced.

<Production of support>
A white polypropylene resin layer (manufactured by Mitsubishi Yuka Co., Ltd .: Noblene FL25HA) is formed on both sides of a 350 μm thick polyethylene terephthalate film (manufactured by Teijin Ltd .: Tetron HS350) so that the thickness is 50 μm by the extrusion laminating method. Provided. One side of the obtained composite resin sheet was subjected to corona discharge treatment at 25 W / m ² · min, and this sheet was used as a support.

《Formation of black color layer irradiated with laser light》
An acrylic resin coating solution in which 200 ppm of carbon black is added to the acrylic resin is applied on one side of the support to form a 10 μm acrylic resin layer, and then a 5 μm transparent acrylic resin layer is formed thereon. A laser beam irradiated black color forming layer was formed.

《Printing front side format information》
Samples 101 to 122 on which format information was printed on the laser-irradiated black coloring layer formed as described above were prepared according to the following methods.

[Production of Sample 101: Present Invention]
A halftone dot of AM screen by a lithographic offset printing method using an offset machine on a laser-irradiated black color-developing layer, with UV-curing offset ink, indigo, red and yellow (Dai-Cure, Inc .: Dicure). After performing multicolor printing (still life), the ink was cured by ultraviolet irradiation. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp. After that, UV curable offset printing OP varnish (manufactured by T & K TOKA) is printed by the lithographic offset printing method. After the OP varnish is cured by UV irradiation, face image and text information are formed on the ticket surface by laser light irradiation. Thus, sample 101 was manufactured. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp.

  In addition, the image and character information by laser light irradiation are created using a Nd: YAG laser (DW5200 / 30W) manufactured by Fuji Electric Co., Ltd. as a laser oscillator, scanning speed: 300 mm / sec, pulse repetition frequency: 3 kHz, excitation A monochrome face image and character information were created on the ticket surface by irradiation under the condition of the control current value 13A.

[Preparation of Sample 102: Present Invention]
UV curable offset ink of red special color ink (DIC564) and grass special color ink (DIC572) (Dainippon) by the planographic offset printing method using an offset machine and the planographic offset printing method using an offset machine. After printing the chromatic pattern with ink and dicure, UV curable offset printing OP varnish (manufactured by T & K TOKA) is printed as a transparent resin layer using the lithographic offset printing method, and the ink and OP varnish are cured by UV irradiation. After that, in the same manner as described above, a sample image 102 is produced by forming a face image and character information on the ticket surface by laser light irradiation. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp.

[Preparation of Sample 103: Present Invention]
On the black color development layer, halftone multi-color printing of AM screen with UV curable offset ink, indigo, red and yellow (Dai-Cure, Inc .: Dicure) by lithographic offset printing using an offset machine. After applying (still life), letters are printed by lithographic offset printing using UV curable orange fluorescent ink made by The Inktec Co., Ltd., and then UV curable offset printing as a transparent resin layer OP varnish (manufactured by T & K TOKA) is printed by the lithographic offset printing method, the ink and OP varnish are cured by ultraviolet irradiation, and then the face image and text information are formed on the ticket surface by laser light irradiation in the same manner as above. 103 is produced. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp.

[Preparation of Sample 104: Present Invention]
Four-color printing using UV curable offset ink, indigo, red and yellow (above, Dai Nippon Ink: Dicure) is applied to the black color development layer by a lithographic offset printing method using an offset machine. After printing multicolor printing (still life), a solid pattern was printed by three times of UV curable pearl ink composed of the following composition by a letterpress offset printing method using an offset machine. As a resin layer, UV curable offset printing OP varnish (manufactured by T & K TOKA) was printed by letterpress offset printing, the ink and OP varnish were cured by ultraviolet irradiation, and then the face image was irradiated by laser light in the same manner as described above. Character information is formed on the face of the bill and sample 104 is produced. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp.

<UV curable pearl ink>
Pearl pigment (Merck, TiO ₂ coated mica, trade name: Iriodin) 20 parts Oligoester acrylate 68 parts Ethylene oxide modified bisphenol A diacrylate 10 parts Aromatic photopolymerization initiator 2 parts [Production of sample 105: this invention〕
It is composed of UV curable offset ink indigo, red and yellow (above, Dai Nippon Ink: Dicure) and process ink indigo, red and yellow on a black color development layer by a lithographic offset printing method using an offset machine. A carbonless black ink containing no carbon pigment was used for AM screen halftone multicolor printing (still image), and then the ink was cured by ultraviolet irradiation. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp. After that, UV curable offset printing OP varnish (manufactured by T & K TOKA) was printed by the lithographic offset printing method. After curing the OP varnish by UV irradiation, the face image and text information were printed by laser irradiation in the same manner as above. A sample 105 is formed by forming the sample on top. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp.

[Production of Samples 106 to 110: Present Invention]
Format printing is performed in the same manner as each sample of samples 101 to 105, and the following transfer foil is provided before laser light irradiation, and then face images and character information are formed on the ticket surface by laser light irradiation in the same manner as described above. Samples 106 to 110 were used.

<Production of transfer foil>
[Preparation of transparent resin transfer foil A]
A release layer coating solution 1, an intermediate layer coating solution 1, a barrier layer coating solution 1 and an adhesive layer coating solution 1 having the following composition are applied to one side of a polyethylene terephthalate (S-25) manufactured by Diafoil Hoechst Co., Ltd. The transparent resin transfer foil A was produced by coating and drying in order by wire bar coating.

(Release layer coating solution 1)
Acrylic resin (Dianal BR-87 manufactured by Mitsubishi Rayon Co., Ltd.) 5 parts Polyvinylacetoacetal (Sekisui Chemical Co., Ltd. KS-1 SP value: 9.4) 5 parts Methyl ethyl ketone 40 parts Toluene 50 parts Release layer coating solution 1 After coating, the film was dried at 90 ° C. for 30 seconds.

(Intermediate layer coating solution 1)
Polyvinyl butyral resin (Sekisui Chemical Co., Ltd .: ESREC BX-1) 5 parts Tuftex M-1913 (Asahi Kasei Co., Ltd.) 3.5 parts Curing agent: Polyisocyanate (Coronate HX Nippon Polyurethane) 1.5 parts Methyl ethyl ketone 20 Part Toluene 70 parts After applying the intermediate layer coating solution 1, drying was performed at 90 ° C. for 30 seconds. The curing agent was cured at 50 ° C. for 24 hours.

(Barrier layer coating solution 1)
Polyvinyl butyral resin (manufactured by Sekisui Chemical Co., Ltd .: ESREC B Series BX-1)
4 parts Tuftex M-1913 (Asahi Kasei Co., Ltd.) 4 parts Curing agent: Polyisocyanate (Coronate HX made by Nippon Polyurethane) 2 parts Toluene 50 parts Methyl ethyl ketone 40 parts After applying barrier layer coating solution 1, it is between 30 at 70 ° C. Drying was performed.

(Adhesive layer coating solution 1)
Urethane-modified ethylene ethyl acrylate copolymer (manufactured by Toho Chemical Industry Co., Ltd .: Hitech S6254B) 8 parts Polyacrylic acid ester copolymer (manufactured by Nippon Pure Chemicals Co., Ltd .: Jurimer AT510) 2 parts Water 45 parts Ethanol 45 parts Adhesive After applying the layer coating solution 1, drying was performed at 70 ° C. for 30 seconds.

  The dry film thickness of the release layer of the transparent resin transfer foil A produced according to the above method is 0.5 μm, the dry film thickness of the intermediate layer is 3.0 μm, the dry film thickness of the barrier layer is 5.0 μm, and the adhesive layer is dried. The film thickness was 3.0 μm.

[Preparation of transparent resin transfer foil B]
A release layer coating solution 2, an actinic ray curable layer coating solution 1, an intermediate layer coating solution 2 and an adhesive layer coating solution 2 having the following composition are applied to one side of a polyethylene terephthalate (S-25) manufactured by Diafoil Hoechst Co., Ltd. The transparent resin transfer foil B was prepared by coating and drying in order by wire bar coating.

(Release layer coating solution 2)
Acrylic resin (Dainal BR-87, manufactured by Mitsubishi Rayon Co., Ltd.) 5 parts Polyvinylacetoacetal (Sekisui Chemical Co., Ltd., KS-1 SP value: 9.4) 5 parts Methyl ethyl ketone 40 parts Toluene 50 parts Release layer coating After applying the liquid 2, drying was performed at 90 ° C. for 30 seconds.

(Actinic ray curable layer coating solution 1)
Actinic ray curable compound (A-9300, Shin-Nakamura Chemical Co., Ltd.) 35 parts Actinic ray curable compound (EA-1020, Shin-Nakamura Chemical Co., Ltd.) 11.75 parts Reaction initiator: Irgacure 184 (Nippon Ciba Geigy Corp.) 5 parts Actinic ray curable layer resin 1 48 parts Surfactant F-179 (manufactured by Dainippon Ink Co., Ltd.) 0.25 parts After applying actinic ray curable layer coating liquid 1, drying at 90 ° C. for 30 seconds, followed by high pressure It was cured by irradiation with a mercury lamp.

<Preparation of actinic ray curable layer resin 1>
In a three-necked flask under a nitrogen stream, 73 parts of methyl methacrylate, 15 parts of styrene, 12 parts of methacrylic acid, 500 parts of ethanol, and 3 parts of α, α'-azobisisobutyronitrile were placed at 80 ° C. in a nitrogen stream. For 6 hours in an oil bath. Thereafter, 3 parts of triethylammonium chloride and 1.0 part of glycidyl methacrylate were added and reacted for 3 hours to obtain an actinic ray curable layer resin 1 which was an acrylic copolymer. Mw is 17000, acid value is 32.

(Intermediate layer coating solution 2)
Polyvinyl butyral resin (manufactured by Sekisui Chemical Co., Ltd .: ESREC BX-1) 3.5 parts Tuftex M-1913 (manufactured by Asahi Kasei Corporation) 5 parts Curing agent: Polyisocyanate (Coronate HX Nippon Polyurethane) 1.5 parts methyl ethyl ketone 90 Part After applying the intermediate layer coating solution 2, drying was performed at 90 ° C. for 30 seconds. The curing agent was cured at 50 ° C. for 24 hours.

(Adhesive layer coating solution 2)
Urethane-modified ethylene ethyl acrylate copolymer (manufactured by Toho Chemical Industry Co., Ltd .: Hitech S6254B) 8 parts Polyacrylic acid ester copolymer (manufactured by Nippon Pure Chemicals Co., Ltd .: Jurimer AT510) 2 parts Water 45 parts Ethanol 45 parts Adhesive After applying the layer coating solution 2, drying was performed at 70 ° C. for 30 seconds.

  The dry film thickness of the release layer of the transparent resin transfer foil B produced according to the above method is 0.5 μm, the dry film thickness of the actinic ray cured layer is 8.0 μm, the dry film thickness of the intermediate layer is 1.0 μm, and the adhesive layer The dry film thickness was 0.5 μm.

(Formation of transfer foil)
The transfer foil A having a transparent protective layer on the sample card was heated to a surface temperature of 200 ° C., and transferred by applying heat at a pressure of 15 MPa for 1.2 seconds using a heat roller having a diameter of 5 cm and a rubber hardness of 85. Subsequently, the transfer foil B having a transparent protective layer thereon was heated to a surface temperature of 200 ° C., and transferred by applying heat at a pressure of 15 MPa for 1.2 seconds using a heat roller having a diameter of 5 cm and a rubber hardness of 85.

[Preparation of Samples 111 to 115: Present Invention]
After performing the format information printing in the same manner as the samples 101 to 105, the following transfer of the hologram transfer foil is performed under the same conditions as the transfer foil A, and the transfer foil B is placed on the hologram transfer foil under the same conditions as described above. After the application, face images and character information were written on the ticket surface by laser light irradiation in the same manner as described above to prepare Samples 111 to 115.

(Production of hologram transfer foil)
A release layer, a hologram layer and an adhesive layer having the following formulation are coated and dried on one side of a polyethylene terephthalate (S-25) manufactured by Diafoil Hoechst Co., Ltd. to obtain an optical change element (hologram) transfer foil. It was.

<Peeling layer: film thickness 0.5 μm>
Acrylic resin (Dainal BR-87, manufactured by Mitsubishi Rayon Co., Ltd.) 5 parts Polyvinylacetoacetal (SP value: 9.4 Sekisui Chemical Co., Ltd., KS-1) 5 parts Methyl ethyl ketone 40 parts Toluene 50 parts <Hologram layer: Film thickness 2μm>
A layer made of acrylic urethane resin having a thickness of 2 μm was applied, and a vapor deposition film of TiO ₂ was formed thereon, and then engraved with a mold to obtain a hologram layer.

<Adhesive layer: film thickness 2 μm>
Styrene resin (Asahi Kasei Co., Ltd., Tuftec M-1953) 6 parts Alicyclic saturated hydrocarbon resin (Arakawa Chemical Co., Ltd., Alcon P100) 3.5 parts Calcium carbonate (Okutama Kogyo Co., Ltd., Tama Pearl TP-123) ) 0.5 part Toluene 90 parts [Preparation of Samples 116 to 120: Present Invention]
Samples 116 to 120 were prepared in the same manner as Samples 101 to 105 except that the following anchor varnish layer was applied on the black color developing layer.

<Transparent resin layer forming anchor varnish>
Calcium carbonate extender pigment (Dainippon Ink Chemical Co., Ltd.) 5 parts Epoxy acrylate resin 35 parts Acrylic acid oligomer 45 parts Photopolymerization initiator: Irgacure 184 (Ciba Specialty Chemicals)
5.9 parts Polymerization inhibitor: Hydroquinone 0.1 part Auxiliary agent: Wax / leveling agent 4 parts The ultraviolet irradiation conditions during printing of the transparent resin layer-forming anchor varnish were equivalent to 200 mj with a high-pressure mercury lamp.

[Production of Sample 121: Comparative Example]
(Production of support)
A white polypropylene resin layer (manufactured by Mitsubishi Yuka Co., Ltd .: Noblene FL25HA) is formed on both sides of a 350 μm thick polyethylene terephthalate film (manufactured by Teijin Ltd .: Tetron HS350) so that the thickness is 50 μm by the extrusion laminating method. Provided. One side of the obtained composite resin sheet was subjected to corona discharge treatment at 25 W / m ² · min, and this sheet was used as a support.

(Formation of image-receiving layer for sublimation thermal transfer recording)
A first image-receiving layer-forming coating solution, a second image-receiving layer-forming coating solution, and a third image-receiving-layer-forming coating solution having the following composition are coated and dried in this order on the corona discharge treated side of the support. The image receiving layer was formed by laminating each of the thicknesses to be 0.2 μm, 2.5 μm, and 0.5 μm.

<First image-receiving layer forming coating solution>
Polyvinyl butyral resin (manufactured by Sekisui Chemical Co., Ltd .: ESREC BL-1) 9 parts Isocyanate (manufactured by Nippon Polyurethane Industry Co., Ltd .: Coronate HX) 1 part Methyl ethyl ketone 80 parts Butyl acetate 10 parts <Second image-receiving layer forming coating solution >
Polyvinyl butyral resin (Sekisui Chemical Co., Ltd .: ESREC BX-1) 6 parts Metal ion-containing compound (* A: MS-1) 4 parts Methyl ethyl ketone 80 parts Butyl acetate 10 parts * A) MS-1: Ni ²⁺ [C ₇ H ₁₅ COC (COOCH ₃ ) ═C (CH ₃ ) O ⁻ ] ₂
<Third image-receiving layer forming coating solution>
Polyethylene wax (manufactured by Toho Chemical Industry Co., Ltd .: Hitech E1000) 2 parts Urethane-modified ethylene acrylic acid copolymer (manufactured by Toho Chemical Industry Co., Ltd .: Hitech S6254) 8 parts Methylcellulose (manufactured by Shin-Etsu Chemical Co., Ltd .: SM15) 0.1 parts Water 90 parts On the image-receiving layer other than the area where the sublimation heat transfer image was recorded, an ultraviolet ray-curable offset ink indigo, red and yellow (above, manufactured by Dainippon Ink Co., Ltd .: Dicure) was used to make an AM screen by letterpress printing. Printing halftone dot multicolor printing (still life), curing the ink by UV irradiation, and then printing UV varnishing offset varnish (made by T & K TOKA) using the lithographic offset printing method. After curing the varnish, print face image and text information with Nisca ID card printer, overcoat And, to prepare a sample 121.

<Evaluation of ID card>
[Evaluation of security functions]
A sample 121 as a comparative product can be made with a copy technique or the like and a card with almost the same face information. In contrast, the samples 101 to 121 of the present invention can be observed to have format information on personal information by using a loupe or the like. Since a general card is created with personal information on the format information or at the same time, the card of the present invention has a forgery prevention property against a general card that is easily forged. Furthermore, Samples 102 to 104, Samples 107 to 109, Samples 112 to 114, and Samples 117 to 119 are equipped with printing anti-counterfeiting technology that can be determined by looking at a loupe or the like that cannot be reproduced by copying. Samples 105, 110, and 115 , 120 is equipped with anti-counterfeiting using black ink that cannot be seen by infrared light observation, and these mounting techniques are formed on personal information, thereby exhibiting further anti-counterfeiting effects.

  In addition, in the card provided with the transfer foil, if the transfer foil is forcibly peeled off, all the information on the bottom face of the card has a security function, but the transfer foil or hologram of the samples 106 to 115 of the present invention is provided. When the transfer foil is forcibly peeled off, the format information part is destroyed, and the laser beam irradiation black formation information is not destroyed, and the security is high from the difference from a card having a general transfer foil. Furthermore, the inventive samples 111 to 115 have high security visually from the formation of the hologram transfer foil.

[Evaluation of peel resistance]
Format information Printed face and face image part card surface with a single-blade razor blade, 11 cuts at an angle of 30 degrees with respect to the face, 11 by 1 mm vertically and horizontally, creating 100 1 mm square grids did. A cellophane adhesive tape (manufactured by Nichiban Co., Ltd.) is strongly pasted on this, and one end of the cellophane adhesive tape is peeled off vertically by hand, the format information due to peeling and the damage of the face image are visually evaluated, and peeling resistance is evaluated according to the following criteria. went.

A: Format information and face image part have no effect B: Format information and face image part have little influence, card top layer is peeled off slightly, but the effect on the card face information is small C: Format information, face image part Either one of them is slightly peeled off D: Both the face image part and the format information part are partly tape peeled F: Both the face image part and the format information part are conspicuously missing information due to tape peeling The results obtained as described above are shown in Table 1.

  As is clear from the above results, the ID card of the present invention having the configuration defined in the present invention has high security and high durability against peeling.

  Also, in contrast to a method for inputting information on the entire surface of a card by irradiating a high-energy laser beam for a long time when inputting information on the card ticket surface, the present invention is the lowest in image and character information formation from format information printing to laser beam irradiation. It could be confirmed that it has a high productivity with a limited time.

Example 2
In accordance with the following contents, an ID card for forming a color image and color character information by laser light irradiation was produced.

<Production of support>
A white polypropylene resin layer (manufactured by Mitsubishi Yuka Co., Ltd .: Noblene FL25HA) is formed on both sides of a 350 μm thick polyethylene terephthalate film (manufactured by Teijin Ltd .: Tetron HS350) so that the thickness is 50 μm by the extrusion laminating method. Provided. One side of the obtained composite resin sheet was subjected to corona discharge treatment at 25 W / m ² · min, and this sheet was used as a support.

<Formation of laser-irradiated color coloring layer>
In the same manner as in Example 5 of JP-A-2000-199952, a three-color coloring layer that colors in multiple colors by laser light irradiation was provided on one side of the support sheet.

《Printing front side format information》
[Preparation of Sample 201: Present Invention]
On the color-developing layer, a halftone multi-color printing of AM screen with UV-curing offset ink, indigo, red and yellow (Dai-Cure, Inc .: Dicure) by lithographic offset printing using an offset machine. After applying (still life), the ink was cured by ultraviolet irradiation. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp. Thereafter, OP varnish for UV curable offset printing (manufactured by T & K TOKA) was printed by a lithographic offset printing method, and the OP varnish was cured by UV irradiation. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp. Next, character information is transferred by an ink sheet for melt type thermal transfer recording according to the following method, and a transfer foil is provided in the same manner as in the method described in Example 1. Thereafter, a semiconductor having a wavelength of 780 nm is first formed from the surface layer side. The face image was exposed using laser light, then the face image was exposed using semiconductor-excited YLF solid laser light having a wavelength of 657 nm, and then the face image was exposed using YAG solid laser light having a wavelength of 532 nm. After the latent image is formed by exposure, it is heated on a hot plate at 120 ° C. for 5 seconds, and further, the color coloring layer is irradiated for 30 seconds on a high brightness Schaukasten of 58000 lux to form a color face image on the ticket surface. Sample 201 was obtained.

(Formation of character information)
Using the following ink sheet for melt type thermal transfer recording on the format information printing section, using the thermal head from the back side of the ink sheet, output 0.5 W / dot, pulse width 1.0 ms, dot density 16 dots Each dye was thermally transferred by heating under the conditions of / mm to form character information.

<Preparation of ink sheet for melt type thermal transfer recording>
Ink for melt-type thermal transfer recording by coating and drying the following ink layer forming coating solution having the following composition on a polyethylene terephthalate sheet having a thickness of 6 μm, which has been processed to prevent fusion on the back side, and having a thickness of 2 μm. A sheet was obtained.

<Ink layer forming coating solution>
Carnauba wax 1 part Ethylene vinyl acetate copolymer (Mitsui DuPont Chemicals: EV40Y) 1 part Carbon black 3 parts Phenol resin (Arakawa Chemical Industries, Ltd .: Tamorol 521) 5 parts Methyl ethyl ketone 90 parts [Production of sample 202: (Invention)
An ultraviolet curable offset ink (Dai Nippon) of red special color ink (DIC564) and grass special color ink (DIC572) by a lithographic offset printing method using an offset machine and a lithographic offset printing method using an offset machine. After printing the chromatic pattern with ink and dicure, UV curable offset printing OP varnish (manufactured by T & K TOKA) is printed as a transparent resin layer using the lithographic offset printing method, and the ink and OP varnish are cured by UV irradiation. . The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp. Thereafter, in the same manner as the sample 201, a color face image was formed by character information, transfer foil, and laser light irradiation, and a sample 202 was produced.

[Preparation of Sample 203: Present Invention]
On the color-developing layer, a halftone multi-color printing of AM screen with UV-curing offset ink, indigo, red and yellow (Dai-Cure, Inc .: Dicure) by lithographic offset printing using an offset machine. After applying (still life), letters are printed by lithographic offset printing using UV curable orange fluorescent ink made by The Inktec Co., Ltd., and then UV curable offset printing as a transparent resin layer OP varnish (manufactured by T & K TOKA) was printed by a lithographic offset printing method, and the ink and OP varnish were cured by ultraviolet irradiation. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp. Thereafter, in the same manner as the sample 201, a color face image was formed by character information, transfer foil, and laser light irradiation, and a sample 203 was produced.

[Production of Sample 204: Present Invention]
Four-color printing using UV-curing offset ink, indigo, red, yellow (above, Dainippon Ink: Dicure) is applied to the AM layer by using a lithographic offset printing method using an offset machine. After printing multicolor printing (still life), a solid pattern was printed by three times of UV curable pearl ink composed of the following composition by a letterpress offset printing method using an offset machine. As a resin layer, UV curable offset varnish for offset printing (manufactured by T & K TOKA) was printed by a relief printing method, and the ink and OP varnish were cured by ultraviolet irradiation. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp.

<UV curable pearl ink>
Pearl pigment (Merck, TiO ₂ coated mica, trade name: Iriodin) 20 parts Oligoester acrylate 68 parts Ethylene oxide modified bisphenol A diacrylate 10 parts Aromatic photopolymerization initiator 2 parts Then, character information, a transfer foil, and a color face image by laser light irradiation were formed, and a sample 204 was produced.

[Preparation of Sample 205: Present Invention]
It is composed of UV curable offset ink indigo, red and yellow (above, Dai Nippon Ink: Dicure) and process ink indigo, red and yellow by a lithographic offset printing method using an offset machine. A carbonless black ink containing no carbon pigment was used for AM screen halftone multicolor printing (still image), and then the ink was cured by ultraviolet irradiation. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp. Thereafter, OP varnish for UV curable offset printing (manufactured by T & K TOKA) was printed by the lithographic offset printing method, and the OP varnish was cured by UV irradiation. The ultraviolet irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp.

  Thereafter, in the same manner as the sample 201, a color face image was formed by character information, transfer foil, and laser light irradiation, and a sample 205 was produced.

[Production of Samples 206 to 210: Present Invention]
Samples 206 to 210 were produced in the same manner as in the production of the samples 201 to 205 except that the transfer foil was changed to the hologram transfer foil used for the production of the samples 111 to 115 of Example 1.

<Evaluation of ID card>
[Evaluation of security functions]
It can be observed that the samples 201 to 110 of the present invention have format information on the face information by using a loupe or the like. Since a general card is created with personal information on the format information or at the same time, the card of the present invention has a forgery prevention property against a general card that is easily forged. In addition, it is equipped with anti-counterfeiting technology for printing that can be determined by looking at a magnifying glass or the like whether it can be reproduced with Samples 202 to 204 and Samples 207 to 209. Samples 205 and 210 are counterfeited using black ink that cannot be seen by infrared observation It is equipped with prevention, and these on-board technologies are formed on personal information.

  In addition, in a card provided with a transfer foil, if the transfer foil is forcibly peeled off, all the bill face information below is destroyed and has a security function, but the transfer foil and hologram transfer foil according to the present invention are forcibly applied. When peeled off, the format information part was destroyed and the laser-irradiated black formation information was not destroyed. From the difference from a card having a general transfer foil, it was confirmed that the security was high. Furthermore, it was confirmed that the samples 206 to 210 of the present invention had high security visually from the formation of the hologram transfer foil.

[Evaluation of peel resistance]
The peel resistance was evaluated in the same manner as described in Example 1, and the results obtained are shown in Table 2.

  As is clear from the above results, it can be seen that the sample of the present invention having the configuration defined in the present invention has high security and high durability against peeling.

  Also, in contrast to the conventional method of inputting information on the entire surface of the card by irradiating information on the card face with time and high energy laser light, the present invention requires at least the formation of image and character information from format information printing to laser light irradiation. It could be confirmed that it has a high productivity as well as a limited time.

Example 3
In the production of 101, 106, 111, 116 described in Example 1 and 201, 206 described in Example 2, halftone multicolor printing (still life) of AM screen is used for halftone multicolor printing of a fair dot screen. Samples 301 to 306 were prepared in the same manner except for printing (still life), and the same evaluation as in Examples 1 and 2 was performed. As a result, the same results as in Examples 1 and 2 could be obtained. .

It is sectional drawing which shows an example of a structure of ID card which has the black coloring layer of this invention. It is sectional drawing which shows an example of a structure of ID card which has the color coloring layer of this invention.

Explanation of symbols

10, 20 ID card 11, 21 Support 12 Laser light irradiation black coloring layer 13, 26 Transparent resin layer 14, 27 Format printing layer 22 Laser light irradiation yellow coloring layer 23 Transparent resin intermediate layer 24 Laser light irradiation cyan coloring layer 25 Laser Light-irradiated magenta coloring layer

Claims (18)

In an ID card having a color developing layer that develops a black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and forming an image or character information on the card face by laser light irradiation, a process ink is formed on the color developing layer. An ID card characterized in that format information is printed by offset printing using. In ID cards that have a color-developing layer that develops black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and that forms images and text information on the card face by laser light irradiation, special color inks on the color-developing layer Alternatively, an ID card in which format information is printed by printing using special ink located on coordinates outside the color reproduction area of process ink. In an ID card that has a color-developing layer that develops a black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and that forms an image or text information on the card face by irradiation with laser light, a carbon-less layer is formed on the color-developing layer. An ID card in which format information including image information and character information is printed by printing using black ink. In an ID card that has a coloring layer that develops black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and format information on the colored layer in an ID card that forms images and text information on the card face by laser light irradiation. An ID card characterized in that printing and transfer foil are applied. In an ID card that has a coloring layer that develops a black color when irradiated with laser light on a card substrate made of polyester or polycarbonate, and that forms an image or text information on the card face by irradiation with laser light, format information is formed on the coloring layer. An ID card, which is printed with a hologram transfer foil. In an ID card for forming a color image by laser light on a card base made of polyester or polycarbonate having a color developing layer that develops yellow, magenta, and cyan by laser light irradiation, a process is performed on the color developing layer. An ID card in which format information is printed by offset printing using ink. In an ID card that has a color layer that develops yellow, magenta, and cyan colors when irradiated with laser light on a card substrate made of polyester or polycarbonate, a special color ink is formed on the color layer in an ID card that forms a color image by laser light. Alternatively, an ID card in which format information is printed by printing using special ink located on coordinates outside the color reproduction area of process ink. In an ID card that forms a color image with laser light on a card base made of polyester or polycarbonate and has a color developing layer that emits yellow, magenta and cyan by laser light irradiation, carbonless on the color developing layer. An ID card characterized in that format information comprising image information and character information is printed by printing using black ink. In an ID card that has a color developing layer that develops yellow, magenta, and cyan colors when irradiated with laser light on a card substrate made of polyester or polycarbonate, format information is formed on the color developing layer in an ID card that forms a color image with laser light. An ID card characterized in that printing and transfer foil are applied. In an ID card that has a color developing layer that develops yellow, magenta, and cyan colors when irradiated with laser light on a card substrate made of polyester or polycarbonate, format information is formed on the color developing layer in an ID card that forms a color image with laser light. An ID card, which is printed with a hologram transfer foil. The ID card according to claim 1, wherein the format information is printed by letterpress printing or planographic offset printing. The ID card according to claim 1, wherein the format information is printed by combined printing of letterpress printing and planographic offset printing. The ID card according to any one of claims 1 to 12, wherein the format information is printed by colored printing including image information and character information and colorless printing using OP varnish. The printing of the format information is performed by colorless printing using an anchor varnish, colored printing including image information and character information, and colorless printing using an OP varnish. The ID card according to item 1. The ID card according to claim 1, wherein after the format information is printed, melted character information is printed using a melt ribbon. The ID card according to claim 13 or 14, wherein the color printing including the image information and the character information is printed by a planographic offset printing method. The ID card according to claim 16, wherein a plate used for lithographic offset printing that performs color printing composed of image information and character information is a fair dot screen. The ID card according to any one of claims 1 to 17, wherein the entire back surface of the card is subjected to resin lamination processing or transparent resin layer printing.

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