JP2007069542A - Authentication card, authentication card preparing device, and method of preparing authentication card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an authentication card, etc. which employs an ink jet recording mode for an image formation, durability is excellent and which can aim at an improvement in the quality of an image of the image formation. <P>SOLUTION: In the authentication card, a white section chromaticity irradiates an activity light beam hardened resin layer which contains (a) at least one sort of compounds selected from a fat dry type epoxy compound and a vinyl ether compound, oxetane compound as a photopolymerizable compound, and (b) a compound belonging to at least one type selected from an onium compound and a sulfonium compound, a halogenide, an Fe allene complex at least, and information is formed on a substrate in which a white section chromaticity is 90≤L<SP>*</SP>≤98, -5.0≤a<SP>*</SP>≤3, and -9≤b<SP>*</SP>≤2, which irradiates an activity light beam hardened resin layer to a compound belonging to at least one sort selected from the Fe allene complex at least, and information is formed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is applied to an ID card that describes personal information or the like that requires safety (security) such as forgery or alteration prevention, and a non-contact or contact type IC card that describes and stores personal information. The present invention relates to an authentication card, an authentication card creation device, and an authentication card creation method.

  In recent years, in the service industry fields such as government offices, banks, companies, medical institutions and schools, identification documents, passports, alien registration cards, library cards, cash cards, credit cards, licenses such as automobile licenses, employees, etc. ID cards such as personal identification cards, employee ID cards, membership cards, medical cards, and student ID cards are widely used. In this type of ID card, a face image for identity verification and character information images such as characters and symbols concerning the owner are recorded. For this reason, printing for the purpose of preventing falsification of ID cards is often performed. In recent years, a contact-type or non-contact-type electronic card or a magnetic card that stores personal information or the like is widely used.

  This face image is usually formed by a full-color image having multiple gradations, for example, by a sublimation thermal transfer recording method, a silver halide color photographic method, or the like. The character information image is composed of a binary image, and is formed by, for example, a melt type thermal transfer recording system, a sublimation type thermal transfer recording system, a silver halide color photographic system, an electrophotographic system, an ink jet system, or the like. Further, for the purpose of preventing forgery and alteration, holograms, fine patterns, etc. are employed.

  However, the melt type thermal transfer recording system, the sublimation type thermal transfer recording system, the silver halide color photographic system, and the electrophotographic system have a negative effect on the environment because waste materials and the like are discharged when cards are produced. Further, in the melt type thermal transfer recording system and the sublimation type thermal transfer recording system, there is a problem that background stains occur due to displacement of the non-recording portion from the recording medium in order to contact and print.

  Further, the ink ribbon material for image recording which has been thermally transferred becomes unnecessary and generates waste, which is not good for the environment. Therefore, in recent years, an ink jet recording system that uses only necessary ink as a printing material has attracted attention as an image forming material. The ink jet recording method can easily and inexpensively create images, and has been applied to various printing fields such as photographs, various printing, marking, and special printing such as color filters.

  In particular, a recording device that emits and controls fine dots, ink that has improved color reproduction gamut, durability, and emission suitability, and ink absorbability, coloring material color development, surface gloss, etc. have been dramatically improved. It is also possible to obtain image quality comparable to silver halide photography using special paper. The image quality improvement of today's ink jet recording system is achieved only when all of the recording apparatus, ink, and special paper are available.

However, in an inkjet system that requires dedicated paper, the recording medium is limited, and the cost of the recording medium increases. Therefore, many attempts have been made to record on a transfer medium different from dedicated paper by an ink jet method. Specifically, a phase change ink jet method using a wax ink solid at room temperature, a solvent ink jet method using an ink mainly composed of a fast-drying organic solvent, a UV ink jet method in which crosslinking is performed by ultraviolet (UV) light after recording, etc. For example, an ink jet method as described in Patent Document 1 and Patent Document 2 is known. Conventionally, when an image is formed using a thermal transfer material by melting, sublimation, etc., it has been proposed to improve the white background density of the card base and the surface property of the card in order to improve the image quality (for example, patents). Document 3 and Patent document 4).
JP-A-8-2090 JP 2004-142124 A Japanese Patent Application No. 2004-185944 Japanese Patent Application Laid-Open No. 11-139048 discloses a method of creating a card by printing with IJ ink on an alumina porous layer of a dedicated image receiving layer in order to improve image quality. A card using ultraviolet curable ink has been proposed. Patent Document 3 describes a technique for defining card white portion chromaticity and improving image quality, and Patent Document 4 describes a technique in which a local concave portion or convex portion is provided when the card surface has a local concave portion or convex portion. The reference plane is a card plane connecting two points 10 mm above and below in parallel with the short side of the card from the maximum portion of the portion, and the distance between the maximum portion of the local concave or convex portion and the reference line is 20 μm or less An IC card characterized in that is described.

  However, in Patent Document 1, an alumina porous layer, which is a dedicated image receiving layer, is used to improve image quality. However, when used as a card material, the general image receiving layer is either a swelling type or a void type. It was clear that the durability performance peculiar to the card deteriorated. This is designed to allow the IJ ink to permeate the IJ image-receiving layer in order to improve the image, so that the permeation of the solvent and water is improved and cannot be used for cards.

  Patent Document 2 proposes a card using a UV curable resin. However, since image quality, card durability, and high energy are required, exposure takes time, and the issue yield is lowered. In addition, since a transfer material is used, the environmental load is large.

  Patent Document 3 specifies a material that improves the image quality by specifying the card white portion chromaticity, but by improving the color reproduction of the highlight color and improving the image quality by specifying the hue of a specific unprinted white portion. However, in the case of the melt type thermal transfer recording system and the sublimation type thermal transfer recording system, the color tone range is narrowed because the non-recording part is smudged with the recording medium in order to contact and print. Therefore, material selection was difficult.

  In Patent Document 4, when the melt type thermal transfer recording method and the sublimation type thermal transfer recording method are used, the card unevenness is defined by the mechanism for contacting the card and the heating head, and the printing property is improved. There have been problems such as print quality deterioration with respect to temperature changes, card configuration and material limitations.

  The present invention has been made in view of the above points, and uses an inkjet recording system as an image forming material, has excellent durability performance, and can improve the image quality of image information, an authentication card creating apparatus, and an authentication card creating method The purpose is to provide.

  In order to solve the above-described problems and achieve the object, the present invention is configured as follows.

The invention according to claim 1 is an authentication card created by ejecting ink that is cured by actinic rays onto a card substrate, with a recording head having at least one nozzle capable of selectively controlling ejection of ink droplets.
On the card substrate in which the white portion chromaticity is 90 ≦ L * ≦ 98, −5.0 ≦ a * ≦ 3, −9 ≦ b * ≦ 2,
a) at least one compound selected from a fat-drying epoxy compound, a vinyl ether compound, and an oktacene compound as a photopolymerizable compound;
b) An authentication card characterized in that actinic ray curable resin layer containing at least one compound selected from onium compounds and sulfonium compounds, halides, and iron allene complexes is irradiated with actinic rays to form information.

The invention according to claim 2 is an authentication card having a recording head having at least one nozzle capable of selectively controlling the ejection of ink droplets and ejecting ink cured by actinic rays onto a card substrate.
The card thickness distribution H (mm) is measured in a certain direction, and the card thickness variation ΔH (mm) at intervals of 2 mm L (mm) has a thickness distribution satisfying (formula) ΔH / L ≦ 0.05. On the substrate
a) at least one compound selected from a fat-drying epoxy compound, a vinyl ether compound, and an oktacene compound as a photopolymerizable compound;
b) An authentication card characterized in that actinic ray curable resin layer containing at least one compound selected from onium compounds and sulfonium compounds, halides, and iron allene complexes is irradiated with actinic rays to form information.

The invention according to claim 3 is an authentication card created by ejecting ink that is cured by actinic rays onto a card substrate, with a recording head having at least one nozzle capable of selectively controlling ejection of ink droplets.
On the card substrate having a card surface roughness Rmax of 30 μm or less,
a) at least one compound selected from a fat-drying epoxy compound, a vinyl ether compound, and an oktacene compound as a photopolymerizable compound;
b) An authentication card characterized in that actinic ray curable resin layer containing at least one compound selected from onium compounds and sulfonium compounds, halides, and iron allene complexes is irradiated with actinic rays to form information.

  The invention according to claim 4 is characterized in that the image forming layer is protected by using a transparent ink in which at least one of the inks made of actinic ray curable resin has a transmittance of 90% or more. The authentication card according to any one of the items.

  The invention according to claim 5 is the authentication card according to any one of claims 1 to 3, wherein the transfer foil having at least the actinic ray curable resin layer is transferred to protect the surface. .

  The invention according to claim 6 is the authentication card according to any one of claims 1 to 5, wherein a writable layer capable of writing is provided on a non-image surface.

  The invention according to claim 7 is characterized in that any one or more of face image, address, name, date of birth is described as personal information. It is the authentication card described in the item.

  The invention according to claim 8 is the authentication card according to any one of claims 1 to 7, wherein a forgery / alteration prevention layer is provided either before or after the ink layer is formed. .

  The invention according to claim 9 is characterized in that the forgery / alteration preventing layer is an image layer selected at least in a timely manner from at least one of a pattern, a bar code, a mat pattern, a fine pattern, a background pattern, an uneven pattern, and a minute character pattern. 9. The authentication card according to claim 8, wherein the authentication card is made of a light absorbing color material, an ultraviolet absorbing material, an infrared absorbing material, a fluorescent agent, beads, an optical change element, a pearl pigment, a flake pigment, and a metallic luster compound.

According to a tenth aspect of the present invention, there is provided a recording head having at least one nozzle capable of selectively controlling the ejection of ink droplets, and ejecting ink cured by actinic rays onto a card substrate to form an image.
a) a stocker unit for accumulating a plurality of card bases before recording information;
b) a recording head having at least one nozzle capable of controlling the ejection of ink droplets;
c) a positioning unit for positioning to supply the card substrate from the stocker unit;
d) a transport unit for transporting the supplied card substrate;
e) an actinic ray irradiation unit for irradiating an image formed on the card substrate;
f) An authentication card making apparatus characterized by having at least a stocker unit for collecting image-formed card bases.

  The invention according to claim 11 is the authentication card according to any one of claims 1 to 9, which is created by the authentication card making device according to claim 10.

  The invention according to claim 12 is to create the authentication card according to any one of claims 1 to 9, using the authentication card making device according to claim 10. It is a creation method.

  With the above configuration, the present invention has the following effects.

  In the first aspect of the invention, a white card with a specific density is newly defined, thereby improving image sharpness and image quality. In addition, by irradiating a specific actinic ray curable resin layer with actinic rays to form information, it is possible to reduce dirt and waste materials, which had been a problem with conventional thermal transfer systems, and as card performance, adhesion, chemical resistance It is possible to realize water resistance and curing by low illuminance.

  In the invention described in claim 2, in order to eliminate local thickness unevenness, by improving the image quality such as image sharpness by suppressing variation in the ink landing distance by making a specific card shape that defines the thickness distribution, Chemical resistance and water resistance are improved by suppressing illuminance unevenness (reducing curing failure) due to irradiation distance fluctuations during irradiation with actinic rays after image formation. Further, the unevenness of the formed image can be suppressed, and when a protective layer is provided on the surface, the adhesion with the protective layer is improved.

  According to the third aspect of the present invention, in order to eliminate the card surface roughness, by improving the image quality such as the image sharpness by suppressing the fluctuation of the ink landing distance by forming the specific card shape without the local unevenness, the image formation Chemical resistance and water resistance are improved by suppressing illuminance unevenness (reducing curing failure) due to irradiation distance fluctuation at the time of irradiation with actinic rays later. Further, the unevenness of the formed image can be suppressed, and when a protective layer is provided on the surface, the adhesion with the protective layer is improved.

  In the invention according to claim 4, the surface protective layer can be implemented by a recording method by protecting the image forming layer with a transparent ink having a transmittance of 90% or more for at least one color of the actinic ray curable resin, Since the recording method is the same, the printer becomes inexpensive and the chemical resistance of the card is improved. Further, in addition to the function of the surface protective layer, the image unevenness is improved, so that the surface slippage is improved and the surface strength of the card is improved.

  In the invention according to claim 5, since the transfer foil having at least the actinic ray curable resin layer is transferred onto the authentication card to protect the surface, a surface protective layer is formed on the entire surface of the card, which can be formed at high speed and has good adhesion. It becomes good. In addition to the function of the surface protective layer, the unevenness of the image is improved, so that the transfer property of the transfer foil is improved, and the surface slip after the formation of the transfer foil is improved, and the card surface strength and chemical resistance are improved. improves.

  In the invention described in claim 6, since a writable layer capable of writing is provided on the non-image surface, an authentication card satisfying the effects of claims 1 to 5 can be obtained.

  In the invention described in claim 7, an authentication card satisfying the effects of claims 1 to 5 can be obtained.

  According to the eighth aspect of the invention, an authentication card satisfying the effects of the first to sixth aspects can be obtained, and an authentication card having forgery and alteration prevention can be provided.

  According to the ninth aspect of the present invention, an authentication card satisfying the effects of the first to sixth aspects can be obtained, and an authentication card having anti-counterfeit prevention properties can be provided. (Sublimation, melting) can be prevented from thermal degradation.

  The invention according to claim 10 is an apparatus capable of continuous and stable supply, and in particular, is a card making apparatus superior in image quality stability and dimensional characteristics.

  In the inventions according to claims 11 and 12, an authentication card satisfying the effects of claims 1 to 9 can be obtained, and an authentication card having anti-counterfeit prevention properties can be provided. It is possible to prevent thermal degradation during image recording (sublimation, melting).

Hereinafter, embodiments of an authentication card, an authentication card making device, and an authentication card making method of the present invention will be described. However, the embodiment of the present invention shows the most preferable form of the invention, and the present invention is not limited thereto. It is not limited.
[Authentication card]
The authentication card according to the present invention is a recording head having at least one nozzle capable of selectively controlling the ejection of ink droplets, and is a card created by ejecting ink that is cured by actinic rays onto a recording material. Magnetic cards, prepaid cards, rewritable cards, contact IC cards, and non-contact IC cards.

  FIG. 1 shows an embodiment of a non-contact type IC card. FIG. 1A is a plan view in which a part of the authentication card is broken, and FIG. In the authentication card of the present invention, an electronic component of an IC module 93 in which a first sheet material 90 and a second sheet material 91 are bonded together with an adhesive 92, and an IC chip 93a and an antenna 93b are included in the adhesive layer. Enclose. The IC chip 93a and the antenna 93b are supported by the nonwoven fabric 93c, and the IC chip 93a is reinforced by a reinforcing plate 93d.

An image element is provided using this card substrate, and at least one selected from an authentication identification image, an attribute information image, format printing, and the like is provided in addition to the face image. In this embodiment, image information 94a of the face image is provided. , Key information attribute identification information 94b, and character information 94c such as a name are provided. Thus, any one or more of personal information, such as a face image, an address, a name, a date of birth, is described. Further, the protective layer 95 may be formed by using a transparent ink in which at least one color of the actinic ray curable resin has a transmittance of 90% or more, and the image forming layer may be protected, or at least the actinic ray curable resin layer is included. The transfer foil may be transferred and protected by forming a protective layer 95 on the surface.
In addition, a writable layer 96 capable of writing is provided on the non-image surface of the second sheet material 91. Further, the forgery / alteration preventing layer 97 may be provided either before or after forming the ink layer. Hereinafter, the configuration of the authentication card of the present invention will be described in detail.
<Card material>
In the present invention, the white portion chromaticity of the unprinted portion of the card base on which the image element is provided is defined as described below. The unprinted portion refers to a portion to which ink intended for image formation by the ink jet method of the present invention is not supplied, and is referred to as a white background. Color change such as so-called actinic ray exposure that is not intended for image formation, stains, and coloring due to format printing, etc. are included in the unprinted portion.

  Conventionally, since actinic rays are used, a card substrate on which an image element composed of an unprinted portion and a printed portion is provided becomes yellow. That is, since yellowing occurs simultaneously with card creation, image sharpness, image quality, and the like after image formation deteriorate and become a problem. Therefore, the above-mentioned problem could be solved by setting the white portion chromaticity within a specific range of the present invention. Furthermore, in the present invention, the card base material in which the color tone of the card base material does not change by irradiation with active light after image formation with the actinic ray curable resin layer is preferable from the viewpoint of the image sharpness of the card, and the color tone changes. However, it is preferable that the ranges are 90 ≦ L * ≦ 98, −5.0 ≦ a * ≦ 3, and −9 ≦ b * ≦ −2, as described above.

  In the present invention, the chromaticity of the unprinted portion (white background) satisfies the following condition on the CIE 1976 L * a * b * color space (hereinafter sometimes referred to as “CIELAB color space”). It is characterized by.

That is, it is preferably a white background exhibiting chromaticity of 90 ≦ L * ≦ 98, −5.0 ≦ a * ≦ 3, −9 ≦ b * ≦ −2, more preferably 92 ≦ L * ≦ 97, − 3.0 ≦ a * ≦ 2,
−8 ≦ b * ≦ −2. If it is not within this range, the image sharpness, the image quality, etc. deteriorate as described above, which causes problems.

  Details of the CIE 1976 L * a * b * color space are described in detail, for example, in “Fine Imaging and Color Hardcopy” on page 354 (1999, published by Corona) edited by the Japan Society of Photography and Imaging Society of Japan. The tristimulus values when using this color space are values obtained in accordance with the method described in JIS Z8717 that defines the tristimulus value measurement method for the X, Y, and Z coordinates of the fluorescent reflecting object. The chromaticity in the CIE1976L * a * b * color space (hereinafter abbreviated as CIELAB color space) is measured by placing the standard white chromaticity on CIE D65 (6504K), which is an international standard for standard daylight. Therefore, any chromaticity measuring device capable of measuring the chromaticity in the CIE 1976 L * a * b * color space can be used for the measurement for verifying that the above-mentioned conditions are satisfied. For example, it can be measured using a C-2000 color analyzer manufactured by Hitachi, Ltd. and CIE D65 (6504K) as a reference light source.

Although the structure of the card | curd base material in which an image element is provided is illustrated below, this invention is not limited to this.
<Support>
Examples of the support constituting the card substrate include polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene terephthalate / isophthalate copolymer, polyolefin resins such as polyethylene, polypropylene, and polymethylpentene, polyvinyl fluoride, and polyfluoride. Polyfluorinated ethylene resins such as vinylidene chloride, polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, polyamides such as nylon 6 and nylon 6.6, polyvinyl chloride, vinyl chloride / vinyl acetate copolymer , Ethylene / vinyl acetate copolymer, ethylene / vinyl alcohol copolymer, polyvinyl alcohol, vinyl polymers such as vinylon, biodegradable aliphatic polyester, biodegradable polycarbonate, biodegradable polylactic acid, biodegradable polyvinyl Biodegradable resins such as alcohol, biodegradable cellulose acetate and biodegradable polycaprolactone, cellulose resins such as cellulose triacetate and cellophane, methyl polymethacrylate, ethyl polymethacrylate, polyethyl acrylate, polyacryl Acrylic resin such as butyl acid, synthetic resin sheet such as polystyrene, polycarbonate, polyarylate, polyimide, ABS, AES, etc., or paper such as fine paper, thin paper, glassine paper, sulfate paper, single layer such as metal foil or these A laminate of two or more layers is exemplified. The thickness of the support is 30 to 300 μm, preferably 50 to 200 μm. In addition, a white pigment such as titanium white, magnesium carbonate, zinc oxide, barium sulfate, silica, talc, clay, calcium carbonate, etc. is added to the support in advance in order to enhance the clarity of the image formed in the subsequent step. Although there is no particular limitation, the thickness of the support is not limited to the curing shrinkage of the ink and the heat generated during the curing reaction. In addition to the conventional high-pressure mercury lamp and metal halide lamp, a lamp is generated. Since the film curls and deforms due to heat, the thickness of the support must be 30 μm or more.

  When two or more sheets are used, the orientation angles of the two may be matched. In some cases, the same or the orientation angles may be matched. In some cases, a plurality of substrates having different substrates or different thicknesses may be laminated and pasted. You may create the authentication card comprised by matching etc. Further, the support may be subjected to an easy-to-contact treatment, and is formed from a resin layer such as a coupling agent, latex, hydrophilic resin, or antistatic resin. In some cases, the support may be subjected to easy contact treatment such as corona treatment or plasma treatment.

  In the case of this invention, it is preferable that an antistatic treatment is preferably performed on the card substrate. Adhesion of dust on the card is reduced by laminating the antistatic agent on the card substrate. Further, when transferring two or more transfer foils, the antistatic function of the card can reduce the adhesion of dust on the card when transferring the second transfer foil.

  If necessary, layers and components such as an emboss, a sign, an IC memory, an optical memory, a magnetic recording layer, a falsification preventing layer, an IC chip, and an infrared absorption layer can be interposed in the support. When producing an IC card, a card substrate can be produced by a known technique using the support described above. The support may have a single layer structure or a multilayer structure. In the case of a multilayer structure, it is preferable to match the orientation of the support as described in JP-A-5-116242.

In order to form a face image of the card user, a functional material layer may be provided on the card base as necessary. For example, an ink receiving layer may be provided in order to improve adhesion between the card substrate and ink, adjust ink receptivity, and adjust whiteness. Hereinafter, it is referred to as an image receiving layer. Further, a writing layer may be provided in order to give the writing property to the authentication card. In the present invention, it is preferable to provide a writing layer on the non-image surface in view of providing a protective layer on the card surface.
<Image receiving layer>
The ink receiving layer can be provided with a white portion adjustment layer.However, as a method for adjusting the whiteness of the unprinted portion according to the present invention, the color tone is mainly adjusted so as to cancel yellow stains that cause deterioration of the white background quality. Examples thereof include a method of adding and containing a coloring dye or pigment to adjust, and a method of improving whiteness by adding a white pigment or a fluorescent brightening agent. For example, a blue coloring compound is added so as to exhibit a blue hue in advance on the card substrate, a color tone is adjusted by containing a plurality of dyes, and a white pigment or a fluorescent brightening agent is used in combination with these. Furthermore, in the present invention, a known ultraviolet absorber, antioxidant or the like may be added so as not to change the color tone such as yellowing of the image receiving layer due to light after irradiation with actinic rays.

In the present invention, it is preferable that at least one coloring compound exhibiting a magenta or cyan color is contained in advance. Examples of the cyan dye include naphthoquinone dyes, anthraquinone dyes, and azomethine dyes. Examples of magenta dyes include anthraquinone dyes, azo dyes, azomethine dyes, etc. As binders for ink adhesion and ink acceptability, for example, polystyrene, polymethylstyrene, polymethoxystyrene, polychlorostyrene, etc. Polyolefin and polyhaloolefins such as polymonovinylidene aromatic, polyvinyl chloride, polyvinyl-cyclohexane, polyethylene, polypropylene, polyvinyl acetate, polyvinylidene chloride, polymethacrylate, polychloroacrylate, polymethylmethacrylate, polyester, polyacrylic acid Α, β-ethylenically unsaturated acid esters such as cationic photocuring resin, photocuring resin such as radical curable photocuring resin, thermosetting resin such as epoxy thermosetting resin, polycarbonate, Polyacrylonitrile, polyamide, polyether and copolymers thereof, polyvinyl acetal resins, polyvinyl butyral resins, it is possible to use various binders, such as styrene-acrylic resins. Furthermore, a silane coupling agent, an antistatic agent, a cushioning agent, a photopolymerization initiator, a photopolymerizable compound, a cross-linking agent, etc. may be added to improve adhesion.

  However, if there is a practical requirement for the image formed by the present invention (for example, a predetermined heat resistance is required for the issued authentication card), the binder is made to satisfy such requirement. It is necessary to consider the type or combination. Taking heat resistance of the image as an example, if heat resistance of 60 ° C. or higher is required, it is preferable to use a binder having a Tg of 60 ° C. or higher.

The image receiving layer is dissolved or melted by applying a solvent or heating to form a film, and there is no particular limitation as long as the white portion adjusting function, ink adhesion, and ink receiving layer described above are satisfied. However, the preferable film thickness is 0.001 μm to 50 μm, and particularly preferably 0.001 μm to 30 μm.
<Writing layer>
The authentication card of the present invention can be provided with a writing layer, and the writing layer can be formed of a binder and various additives. The writing layer is a layer that allows writing on the back side of the authentication card. Since this layer has writability, it is preferably composed of at least one layer, preferably 1 to 5 layers. As such a writing layer, an inorganic fine powder, a porous substance, etc. can be used, for example. As the porous material, for example, silica (sedimentable or gel type), talc, kaolin, clay, alumina white, diatomaceous earth, titanium oxide, calcium carbonate, barium sulfate and the like can be used. In addition, as said porous substance, you may make it use 1 type from the said compound etc., or 2 or more types in mixture. A porous material can be included and is not particularly limited.

  Other binders can also be used, such as shellac, rosin and derivatives thereof, nitrified cotton and fiber derivatives, polyamide resins, polyacrylate resins, polyvinyl chloride resins, polyvinyl acetate resins, polystyrene resins, petroleum resins, rings. Rubberized rubber, chlorinated rubber, chlorinated polypropylene, urethane resin, epoxy resin, polyester resin, acrylic resin, vinyl chloride, vinyl chloride-vinyl acetate copolymer, butyral resin, vinylidene chloride resin, water-soluble resin, etc. can be used. . Further, a UV curable resin containing a prepolymer which is copolymerized and cured by ultraviolet rays may be used. Examples of the copolymerizable compound used therefor include polyol acrylate, polyester acrylate, epoxy acrylate, urethane acrylate, and alkyd acrylate. Among these, polyester resins, polyacrylate resins, polyvinyl chloride resins, polyvinyl acetate resins, polyamide resins, and polystyrene resins are preferably used.

  In addition, as said resin, you may make it use 1 type from the said compound etc., or 2 or more types in mixture. As the particle diameter of the porous material, those having a particle diameter of 1 to 10 μm can be used, and preferably the average particle diameter is 1 to 8 μm. The weight ratio of the porous material to the resin is preferably 20 to 100 parts by weight with respect to 100 parts by weight of the resin in terms of solid content. Other additives may include wax, surfactant, solvent and water, and are not particularly limited.

The thickness of the writing layer is preferably 5 to 40 μm, more preferably 5 to 30 μm. When the writing layer is formed, an adhesive layer may be provided in order to improve the adhesion to the support, or a cushion layer may be provided in order to improve the writing property.
<Information carrier consisting of format print layer>
Information formed by format printing on the card substrate, the image receiving layer, the writing layer, or the card substrate when the image on the entire surface of the card is formed by the image recording method of the present invention, because the ink consumption increases. A carrier may be provided. An information carrier comprising a format print represents an information carrier provided with at least one selected from a plurality of identification information and book information. Specifically, a ruled line, a company name, a card name, and notes Indicates the issuer's phone number.

  The format printing is performed on the image receiving layer or the writing layer and on the substrate by a printing method such as resin relief printing, planographic printing, silk printing, flexographic printing, and the like. The format print layer of the present invention may employ watermark printing, fine prints, etc. to prevent visual forgery.

  The anti-counterfeit layer is an image layer that is selected as appropriate for patterns, barcodes, matte patterns, fine patterns, background patterns, concavo-convex patterns, minute character patterns, visible light absorbing color materials, ultraviolet absorbing materials, infrared absorbing materials. , Fluorescent agent, beads, optical change element layer, pearl pigment, metallic luster ink and the like.

  For the formation of an information carrier consisting of format printing, use the “lithographic printing technology”, “new printing technology overview”, “offset printing technology”, “plate making / printing slightly understandable picture book” published by Japan Printing Technology Association, etc. It can be formed using the general inks described, and is formed of ink such as carbon in photocurable ink, oil-soluble ink, solvent-type ink, and the like.

  Image layer such as fine pattern, concavo-convex pattern, minute character pattern, visible light absorbing color material, UV absorbing material, infrared absorbing material, fluorescent agent, beads, optical change element layer, pearl pigment, metallic luster ink etc. on the image receiving layer in advance It is preferable to be printed on.

  In the present invention, the printing layer that can be used for the forgery prevention layer and the format printing layer is, for example, an actinic ray curable resin, a polymethyl methacrylate acrylic resin, polystyrene, or the like as a representative example of a binder resin. Styrenic resins, polyvinyl chloride resins such as polyvinyl chloride, vinylidene chloride resins such as polyvinylidene chloride, polyester resins such as polyethylene terephthalate, cellulose resins such as cellulose acetate, polyvinyl acetal resins such as polyvinyl butyral, epoxy Resin, amide resin, urethane resin, melamine resin, alkyd resin, phenol resin, fluorine resin, silicone resin, polycarbonate, polyvinyl alcohol, casein, gelatin and the like. In this invention, an actinic ray curable resin, an acrylic resin, and a polyester resin are preferable, and an actinic ray curable resin is more preferable from the viewpoint of chemical resistance and adhesion to a card substrate.

  As the anti-counterfeiting material, techniques described in JP-A-53-9600, JP-A-9-240133, JP-A-2001-134727, JP-A-2002-301886, JP-A-2003-99751 and the like can be used. In the present invention, there is no particular limitation as long as it is a material for preventing forgery.

In this invention, it is preferable that the minute characters that are not easily reproduced by inkjet are characters of 0.2 to 3 points. More preferably, it is 0.2-2 points. It is preferable that the surface roughness Rmax is 30 μm or less on the ink image receiving layer on the outermost surface of the card having the card substrate or the format printing layer or the forgery / alteration preventing layer of the present invention. If Rmax is 30 μm or more, the ink shot distance varies and the dot shape changes, which causes a problem of image quality degradation.
<Electronic component materials for cards>
Electronic components can be inserted into the authentication card of the present invention as necessary. In that case, the ink recording layer is used as the first sheet member, and the writing sheet is used as the second sheet member, and they are bonded and sealed through an adhesive.
(Electronic parts)
An electronic component refers to an information recording member, specifically, an IC chip that electrically stores information of a user of the electronic card and a coiled antenna body connected to the IC chip. The IC chip is only a memory or in addition to a microcomputer. In some cases, a capacitor may be included in the electronic component. The present invention is not limited to this, and is not particularly limited as long as it is an electronic component necessary for the information recording member.

  An IC module has an antenna coil, but when it has an antenna pattern, a copper coil, a conductor paste such as silver paste printed in a spiral on an insulating substrate, copper foil, etc. The coil etc. which etched this metal foil are used. In the present invention, it is preferable to use a coil made of a copper wire for communication. In some cases, it may be covered with a resin, an insulating layer, or the like.

  The circuit pattern including the antenna coil is preferably a winding type, and can be electrically connected in a separate process so as not to be short-circuited with the coil pattern in the middle. The number of turns of the antenna coil is preferably 2 to 10 turns, but there is no particular limitation in the present invention. As the printed board, a thermoplastic film such as polyester is used, and polyimide is advantageous when heat resistance is required. The IC chip and antenna pattern can be joined using conductive adhesives such as silver paste, copper paste, and carbon paste (EN-4000 series from Hitachi Chemical, XAP series from Toshiba Chemical) and anisotropic conductive films (Hitachi Chemical). It is known to use industrial anisol, etc.), or soldering or ACF bonding, but any method may be used.

  In order to fill the resin after placing the parts including the IC chip in a predetermined position in advance, the shearing force due to the flow of the resin causes the joint to come off or the surface smoothness due to the flow or cooling of the resin. In order to eliminate the damage and lack of stability, a resin layer is previously formed on the substrate sheet, and the electronic component is sealed with a porous resin film or porous foam to enclose the component in the resin layer. It is preferably used in the form of a conductive resin film, a flexible resin sheet, a porous resin sheet, or a nonwoven fabric sheet. For example, a method described in Japanese Patent Application No. 11-105476 can be used.

  For example, examples of the non-woven sheet member include a mesh-like woven fabric such as a non-woven fabric, and a plain woven fabric, a twill woven fabric, and a satin woven fabric. In addition, a fabric having pile called moquette, plush velor, seal, velvet, or suede can be used. Materials include polyamides such as nylon 6, nylon 66 and nylon 8, polyesters such as polyethylene terephthalate, polyolefins such as polyethylene, polyvinyl alcohols, polyvinylidene chloride, polyvinyl chloride, polyacrylonitrile, acrylamide, methacryl Acrylics such as amides, synthetic resins such as polycyanide vinylidene, polyfluoroethylene, and polyurethane, natural fibers such as silk, cotton, wool, cellulose, and cellulose ester, recycled fibers (rayon, acetate), aramid fibers The fiber which combined the 1 type (s) or 2 or more types chosen from among these is raised. Of these fiber materials, rayon that is preferably polyamide-based such as nylon 6 or nylon 66, acrylic-based such as polyacrylonitrile, acrylamide or methacrylid, polyester-based such as polyethylene terephthalate, cellulose-based as recycled fiber, or cellulose ester-based And acetate and aramid fibers.

Further, since the IC chip has a weak point pressure strength, it is also preferable to have a reinforcing plate in the vicinity of the IC chip. The total thickness of the electronic component is preferably 10 to 500 μm, more preferably 10 to 450 μm, still more preferably 10 to 400 μm.
<Method and electronic component mounting method including first sheet member and second sheet member>
(IC card electronic component mounting method)
A first sheet member (hereinafter referred to as a first sheet member) having an image receiving layer and a second sheet member (hereinafter referred to as a second sheet member) having a writing layer using the support for an image recording body of the present invention. As a manufacturing method, a thermal bonding method, an adhesive bonding method, and an injection molding method are known, but any method may be used for bonding. Moreover, you may provide the information carrier layer which consists of said description format printing in either before and after bonding a 1st sheet member and a 2nd sheet member.

  The manufacturing method of the IC-mounted card base material of the present invention is as follows: JP 2000-036026, JP 2000-21278, JP 2000-21855, JP 10-316959, JP 11-5964, etc. An installation method is disclosed. Any bonding method, coating method, and the like can be used, and there is no particular limitation on the present invention.

  The manufacturing method of the electronic card of the present invention includes at least a step of forming an electronic component holder by applying an adhesive member that is a solid or viscous body at normal temperature and softened in a heated state to the electronic component for the card, A step of disposing the electronic component holder on the substrate member, a step of disposing a surface member so as to cover the electronic component holder on the substrate member, and a predetermined pressure and heating condition. It has the process of bonding together the member for board | substrates, an electronic component holding body, and the member for surfaces below, It is characterized by the above-mentioned.

  The adhesive member that softens in the heated state of the solid or viscous body is preferably formed by bonding the adhesive itself with a method of forming and forming the adhesive itself in a sheet form by heating or melting at room temperature and injection molding. In the case of the present invention, a low temperature adhesive is preferable to reduce thermal deformation of the support, more preferably a reactive adhesive, a hot melt adhesive, and more preferably a reactive hot melt adhesive.

  The reactive hot melt adhesive represents a photocurable adhesive, a moisture curable adhesive, an elastic epoxy adhesive, or the like. For example, a reactive hot melt adhesive is a moisture curable material and is disclosed in Japanese Patent Application Laid-Open No. 2000-036026. JP 2000-2111278, JP 2000-211985, and JP 2002-175510. JP-A-10-316959, JP-A-11-5964 and the like are disclosed as photocurable adhesives.

  The thickness of the adhesive including the electronic component is preferably 10 to 600 μm, more preferably 10 to 500 μm, and still more preferably 10 μ to 450 μm.

At the time of bonding, it is preferable to perform heating and pressurization in order to increase the surface smoothness of the card base and the adhesion of a predetermined electronic component between the first sheet member and the second sheet member. It is preferable to manufacture by a method, a laminate method, a caterpillar method, etc. Furthermore, considering the crack of IC parts, avoid a roller that is close to line contact and exerts an unreasonable bending force even with a slight deviation, and is a flat press die Is preferred. The heating is preferably 10 to 120 ° C, more preferably 30 to 100. Pressure is preferably 0.01~300kgf / cm ^2, more preferably 0.05~100kgf / cm ^2. An IC chip having a higher pressure is damaged. The heating and pressurizing time is preferably 0.1 to 180 sec, more preferably 0.1 to 120 sec. If the time is longer than this, the production efficiency is lowered.

  According to the method for creating an authentication card of the present invention, the electronic component holder described above is applied, and in the bonding step, the substrate member, the electronic component holder, and the surface are used under predetermined pressure and heating conditions. Therefore, the substrate component, the electronic component holder, and the surface substrate can be bonded with good reproducibility using the electronic component holder itself as an adhesive. An authentication card manufactured if not produced by the above method is out of the scope of claim 2 of the present invention, the card thickness deteriorates, the ink impact distance changes, the dot shape changes, the image quality deteriorates, the surface The protective layer forming ability and the transferability of the transfer foil are deteriorated and become a problem.

  Similarly, the surface irregularity is deteriorated because it is out of the range described in claim 3 of the present invention, the image quality is deteriorated such as the ink impact distance is changed and the dot shape is changed, the surface protective layer forming ability and the transfer property of the transfer foil are reduced. Deteriorates and becomes a problem.

The single wafer sheet or continuous coated lami roll bonded as a continuous sheet by the adhesive bonding method or the resin injection method may be used for recording authentication identification images and bibliographic items after being left for a time that matches the predetermined curing time of the adhesive. Then, it may be formed into a predetermined card size. As a method for forming a predetermined card size, a punching method, a cutting method, and the like are mainly selected, and an electronic component-mounted IC card substrate can be created. Moreover, the authentication card which does not mount an electronic component can also be created using the method similar to the above.
(Specific card base making method)
Here, an example of a method for producing an electronic component mounting card of the present invention using a hot melt adhesive will be described. In producing the authentication card, first, a hot melt adhesive is applied to a predetermined thickness on the front and back sheets with an applicator. As a coating method, a normal method such as a roller method, a T-die method, or a die method is used. In the case of coating in the form of stripes in the present invention, there is a method of intermittently opening the T-die slit, but it is not limited thereto.

  An IC member is mounted between the upper and lower sheets coated with the adhesive. The adhesive applied before mounting may be preheated with a heater or the like. After that, an IC member mounted between the upper and lower sheets is pressed for a predetermined time with a press heated to the bonding temperature of the adhesive, or rolled while conveying the sheet in a constant temperature layer at a predetermined temperature instead of rolling with the press. You may roll in. Moreover, you may vacuum-press in order to prevent a bubble from entering at the time of bonding. After bonding with a press or the like, it is punched into a predetermined shape and cut into a card shape to form a card. When a reactive adhesive is used as the adhesive, it is cut into a card shape after curing for a predetermined time. An effective method is to make a hole for supplying moisture necessary for reaction around the card size of the laminated sheets to promote curing.

The authentication card of the present invention preferably has a thickness of 200 to 1200 μm, more preferably 200 to 1000 μm. If the card thickness is thick, the card thickness is likely to vary. With this invention method, the image impact deterioration or surface transfer layer forming ability and transferability of the transfer foil deteriorate, such as the ink striking distance fluctuates and the dot shape changes abruptly. It becomes a problem.
<About card thickness distribution H>
Here, FIG. 2 is a graph showing the result of measuring the card thickness of the authentication card in a grid pattern at intervals of 2 mm in the card short side direction and the card long side direction. FIG. 3 is a graph obtained by extracting a part of the measurement values in the card long side direction, and FIG. 4 is a graph obtained by extracting a part of the measurement values in the card short side direction. In this case, the interval L defined in the present invention is 2 mm. The difference in thickness at intervals of 2 mm shown in FIGS. 3 and 4 is ΔH. In the case of the present invention, ΔH is measured in the card surface for each interval L, and ΔH / L ≦ 0.05 improves image quality such as image sharpness by suppressing variation in ink landing distance. It is preferable in that it can suppress illuminance unevenness due to irradiation distance fluctuation. More preferably, it is 0.025 or less. The card thickness was measured in a grid pattern with an interval of 2 mm in the main scanning and sub-scanning directions on the entire surface of the authentication card using “Mitaka Kouki Co., Ltd. non-contact three-dimensional measuring device NH-3N”. The thicknesses obtained for each interval L are calculated from the difference ΔH, ΔH / L is calculated for all measurements, and the maximum value is shown in Table 1.
<About card surface roughness Rmax>
In the present invention, the surface property of the authentication card needs to have a specific surface property. In particular, it is known that the surface of a card incorporating an electronic component has a concave portion or a convex portion for enclosing the electronic component. When forming an image according to the present invention, due to local surface irregularities in the authentication card, the ink striking distance fluctuates and the dot shape changes abruptly, resulting in image quality degradation or surface protective layer forming ability and transfer foil transferability. It was a problem. Rmax was calculated by measurement with a RSTPLUS non-contact three-dimensional micro surface shape measurement system manufactured by WYKO. The above problem was solved by setting the card surface roughness Rmax to 30 μm or less. When the thickness is 30 μm or more, image quality deterioration or surface protective layer forming ability or transfer foil transferability deteriorates, such as a change in the ink striking distance and a drastic change in dot shape.
<Inkjet recording material on card substrate>
In the authentication card of the present invention, information formed by format printing as described above and a forgery prevention layer may be provided on the card surface before ink jet recording. In this invention, there is no restriction | limiting in particular, You may record information by the inkjet recording of this invention altogether. As the contents to be recorded, it is preferable to record one or more personal information such as a face image, address, name, date of birth, etc. as personal information.

  The image forming material used in the present invention is a material made of a resin that is cured by actinic rays. Of the polymerizable compounds that can be used in the present invention, examples of the radical polymerizable compound include those described in JP-A-7-159983, JP-B-7-31399, JP-A-8-224882, and JP-A-10-863. As the cationic polymerizable compound, various known cationic polymerizable monomers can be used. For example, an epoxy compound, a vinyl ether compound, an oxetane compound, etc. are mentioned.

  The radical polymerizable compound is a compound having an ethylenically unsaturated bond capable of radical polymerization, and may be any compound as long as it has at least one ethylenically unsaturated bond capable of radical polymerization in the molecule. , Oligomers, polymers and the like having chemical forms. Only one kind of radically polymerizable compound may be used, or two or more kinds thereof may be used in combination at an arbitrary ratio in order to improve desired properties.

  Examples of compounds having an ethylenically unsaturated bond capable of radical polymerization include unsaturated carboxylic acids such as acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid, maleic acid and their salts, esters, urethanes, amides. And radically polymerizable compounds such as unsaturated monomers, acrylonitrile, styrene, various unsaturated polyesters, unsaturated polyethers, unsaturated polyamides, and unsaturated urethanes. The addition amount of the radical polymerizable compound is preferably 1 to 97% by mass and more preferably 30 to 95% by mass with respect to the ink composition.

  In this invention, it is preferable to contain at least one oxetane compound as the cationic polymerizable compound and at least one compound selected from an epoxy compound and a vinyl ether compound.

  A preferable aromatic epoxide is a di- or polyglycidyl ether produced by the reaction of a polyhydric phenol having at least one aromatic nucleus or an alkylene oxide adduct thereof and epichlorohydrin, such as bisphenol A or an alkylene oxide thereof. Examples thereof include di- or polyglycidyl ethers of adducts, di- or polyglycidyl ethers of hydrogenated bisphenol A or its alkylene oxide adducts, and novolak-type epoxy resins. Here, examples of the alkylene oxide include ethylene oxide and propylene oxide.

  As the alicyclic epoxide, cyclohexene oxide obtained by epoxidizing a compound having at least one cycloalkane ring such as cyclohexene or cyclopentene ring with a suitable oxidizing agent such as hydrogen peroxide or peracid. Or a cyclopentene oxide containing compound is preferable.

  Preferred aliphatic epoxides include di- or polyglycidyl ethers of aliphatic polyhydric alcohols or alkylene oxide adducts thereof, and typical examples thereof include diglycidyl ether of ethylene glycol, diglycidyl ether of propylene glycol or Diglycidyl ether of alkylene glycol such as diglycidyl ether of 1,6-hexanediol, polyglycidyl ether of polyhydric alcohol such as di- or triglycidyl ether of glycerin or its alkylene oxide adduct, polyethylene glycol or its alkylene oxide adduct Of polyalkylene glycols such as diglycidyl ether, polypropylene glycol or diglycidyl ether of its alkylene oxide adduct Glycidyl ether, and the like. Here, examples of the alkylene oxide include ethylene oxide and propylene oxide.

  Among these epoxides, in view of fast curability, aromatic epoxides and alicyclic epoxides are preferable, and alicyclic epoxides are particularly preferable. In this invention, one of the above epoxides may be used alone, or two or more may be used in appropriate combination.

  Examples of the vinyl ether compound include ethylene glycol divinyl ether, diethylene glycol divinyl ether, triethylene glycol divinyl ether, propylene glycol divinyl ether, dipropylene glycol divinyl ether, butanediol divinyl ether, hexanediol divinyl ether, cyclohexanedimethanol divinyl ether, Di- or trivinyl ether compounds such as methylolpropane trivinyl ether, ethyl vinyl ether, n-butyl vinyl ether, isobutyl vinyl ether, octadecyl vinyl ether, cyclohexyl vinyl ether, hydroxybutyl vinyl ether, 2-ethylhexyl vinyl ether, cyclohexane dimethanol monovinyl ether, n- B pills vinyl ether, isopropyl vinyl ether, isopropenyl ether -o- propylene carbonate, dodecyl vinyl ether, diethylene glycol monovinyl ether, and octadecyl vinyl ether.

  Among these vinyl ether compounds, in consideration of curability, adhesion, and surface hardness, di- or trivinyl ether compounds are preferable, and divinyl ether compounds are particularly preferable. In the present invention, one of the above vinyl ether compounds may be used alone, or two or more thereof may be used in appropriate combination.

  The oxetane compound is a compound having an oxetane ring, and any known oxetane compound can be used. In the oxetane compound, when a compound having 5 or more oxetane rings is used, the viscosity of the ink composition becomes high, which makes it difficult to handle and the glass transition temperature of the ink composition becomes high. The stickiness of will not be enough. The oxetane compound is preferably a compound having 1 to 4 oxetane rings.

  A method for producing each compound having an oxetane ring is not particularly limited, and may be a conventionally known method, for example, Pattison (DB Pattison, J. Am. Chem. Soc. 3455, 79 (1957). ) Discloses an oxetane ring synthesis method from a diol. In addition to these, compounds having 1 to 4 oxetane rings having a high molecular weight of about 1000 to 5000 are also included.

  In this invention, in order to perform the curing reaction more efficiently, it is preferable to add a known photopolymerization initiator and cure. Photopolymerization initiators can be broadly classified into two types: intramolecular bond cleavage type and intramolecular hydrogen abstraction type.

  Examples of the intramolecular bond cleavage type photopolymerization initiator include diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethyl ketal, 1- (4-isopropylphenyl) -2. -Hydroxy-2-methylpropan-1-one, 4- (2-hydroxyethoxy) phenyl- (2-hydroxy-2-propyl) ketone, 1-hydroxycyclohexyl-phenylketone, 2-methyl-2-morpholino (4 Acetophenones such as -thiomethylphenyl) propan-1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone; benzoins such as benzoin, benzoin methyl ether, benzoin isopropyl ether; 2 , 4,6-Trimethylbenzoindiphenyl Scan fins oxides such acylphosphine oxide of; benzyl, and methyl phenylglyoxylate ester.

  On the other hand, as an intramolecular hydrogen abstraction type photopolymerization initiator, for example, benzophenone, methyl 4-phenylbenzophenone, o-benzoylbenzoate, 4,4'-dichlorobenzophenone, hydroxybenzophenone, 4-benzoyl-4'-methyl Benzophenones such as diphenyl sulfide, acrylated benzophenone, 3,3 ', 4,4'-tetra (t-butylperoxycarbonyl) benzophenone, 3,3'-dimethyl-4-methoxybenzophenone; 2-isopropylthioxanthone, 2 Thioxanthone series such as 1,4-dimethylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone; amino benzophenone series such as Michler-ketone, 4,4'-diethylaminobenzophenone; 10-butyl- - chloro acridone, 2-ethyl anthraquinone, 9,10-phenanthrenequinone, camphorquinone, and the like. The amount of the photopolymerization initiator used is preferably in the range of 0.01 to 10.00% by mass of the actinic ray curable composition.

  As the cationic polymerization initiator, for example, a chemical amplification type photoresist or a compound used for photocationic polymerization is used (Organic Materials Research Group, “Organic Materials for Imaging”, Bunshin Publishing (1993). , 187-192, Technical Information Association, “Photocuring Technology”, 2001, photoacid generator). Examples of compounds suitable for this invention are listed below.

  First, B (C6F5) 4-, PF6-, AsF6-, SbF6-, and CF3SO3- salts of aromatic onium compounds such as diazonium, ammonium, iodonium, sulfonium, and phosphonium can be exemplified. Secondly, sulfonated products that generate sulfonic acid can be mentioned. Thirdly, a halide that generates hydrogen halide can also be used. Fourthly, an iron allene complex can be mentioned.

  The ink composition of the present invention is cured by irradiation with ultraviolet rays, but a photosensitizer can be used in combination in order to perform the curing reaction more efficiently.

  In the ink composition according to the present invention, in order to further improve various performances, for example, a colorant, a silane coupling agent, a polymerization inhibitor, a leveling agent, a visible light absorbing colorant, Materials such as an infrared absorber, a fluorescent agent, a bead, an optical change element, a pearl pigment, a flake pigment, and a metallic luster compound can also be added as an ultraviolet absorber and an anti-counterfeiting material.

  Examples of the colorant include various chromatic organic pigments such as phthalocyanine, azo, quinacridone, dioxazine, and diketopyrrolopyrrole, and inorganic pigments such as carbon black, titanium white, silica, mica, and zinc oxide. Etc. Examples of the silane coupling agent include γ-methacryloxypropyltrimethoxysilane, γ- (2-aminoethyl) aminopropyltrimethoxysilane, γ-mercaptopropyltrimethoxysilane, and the like. Examples of the polymerization inhibitor include methoquinone, methylhydroquinone, benzoquinone and the like. Examples of the leveling agent include Modaflow (manufactured by Monsanto; registered trademark), FC-430 (manufactured by 3M), and the like.

  In order to obtain the actinic ray curable inkjet ink according to the present invention, the above-described components may be mixed, and the order and method of mixing are not particularly limited. As the physical properties of the ink composition prepared as described above, an actinic ray curable inkjet ink having a viscosity at 50 ° C. of 7 to 20 mPa · s, preferably 7 to 12 mPa · s is preferable.

In addition, the actinic ray curable inkjet ink may contain a solvent as necessary. For example, ketones such as methyl ethyl ketone and methyl isobutyl ketone, acetates such as ethyl acetate and butyl acetate, aromatic hydrocarbons such as benzene, toluene and xylene, alcohols such as ethylene glycol monoacetate and propylene glycol dimethyl ether, water, etc. It is also possible to dilute and use the actinic ray curable inkjet ink with other commonly used organic solvents.
<Inkjet system on card base>
Next, the image forming method of the present invention will be described. In the image forming method of the present invention, the ink described above is ejected and drawn on a card substrate (hereinafter also referred to as a recording material) by an ink jet recording method, and then the ink is cured by irradiation with light rays such as ultraviolet rays.

  In the present invention, the solid ink film thickness per color after the ink has landed on the recording material and cured by irradiation with actinic rays is preferably 0.1 to 20 μm. When the thickness exceeds 20 μm, not only the above-mentioned problems of curling and wrinkling of the recording material, but also problems such as a change in the strain and texture of the entire printed matter occur. In addition, when thickness irregularities or irregularities occur in the image quality, problems such as adhesion to the surface protective layer and slipperiness due to irregularities on the surface are deteriorated, resulting in a decrease in surface strength. Accordingly, it is not preferable to discharge ink with an excessive film thickness.

  As the ink ejection conditions, it is preferable from the viewpoint of ejection stability that the recording head and ink are heated to 35 to 100 ° C. and ejected. Actinic radiation curable ink has a large viscosity fluctuation range due to temperature fluctuations, and the viscosity fluctuations directly affect the droplet size and droplet ejection speed, causing image quality degradation. It is necessary to keep. The control range of the ink temperature is set temperature ± 5 ° C., preferably set temperature ± 2 ° C., more preferably set temperature ± 1 ° C.

  Moreover, in this invention, it is preferable that the amount of droplets discharged from each nozzle is 0.01 to 15 pl. Originally, in order to form a high-definition image, it is necessary for the amount of droplets to be within this range, but when discharging with this amount of droplets, the above-described discharge stability becomes particularly severe. According to the present invention, even when the ink is ejected with a small droplet amount such as 0.01 to 15 pl, the ejection stability is improved and a high-definition image can be stably formed.

  In the image forming method of the present invention, it is preferable that irradiation with actinic rays be started within 0.001 to 1.0 seconds after ink landing, and more preferably 0.001 to 0.8 seconds. In order to form a high-definition image, it is particularly important that the irradiation timing is as early as possible.

  As a method for irradiating actinic rays, the basic method is disclosed in JP-A-60-132767. According to this, the light source is provided on both sides of the head unit, and the head and the light source are scanned by the shuttle method. Irradiation is performed after a certain period of time after ink landing. Furthermore, the curing can be completed by another light source that is not driven. In US Pat. No. 6,145,979, as an irradiation method, a method using an optical fiber or a method of applying a collimated light source to a mirror surface provided on the side of the head unit and irradiating the recording unit with UV light is disclosed. Yes. In addition to this, a method of arranging a light source fixed on the upper surface of the head carriage can be used. Any of these irradiation methods can be used in the image forming method of the present invention.

In the present invention, it is preferable that the total power consumption of the light source for irradiating actinic rays is less than 1 kW · hr. Examples of the light source having a total power consumption of less than 1 kW · hr include, but are not limited to, a fluorescent tube, a cold cathode tube, and an LED.
<Image recording unit>
Next, an image recording unit (hereinafter also simply referred to as a recording device) of the present invention will be described.

  The recording apparatus of the present invention will be described below with reference to the drawings as appropriate. Note that the recording apparatus of the drawings is merely one aspect of the recording apparatus of the present invention, and the recording apparatus of the present invention is not limited to this drawing.

  FIG. 5 is a front view showing a configuration (one example) of a main part of the recording apparatus usable in the present invention. The recording apparatus 1 includes a head carriage 2, a recording head 3, an irradiation unit 4, a platen 5, and the like. In the recording apparatus 1, a platen 5 is installed under the card base P. The platen 5 has a function of absorbing ultraviolet rays, and absorbs excess ultraviolet rays that have passed through the card substrate P. As a result, a high-definition image can be reproduced very stably.

  The recording material P is sucked by a plurality of suction holes 51 and 52 provided on the entire surface of the platen 5 and is held by the platen 5, and moves from the front side to the back side in FIG. The head scanning unit 601 scans the recording head 3 held by the head carriage 2 by reciprocating the head carriage 2 in the Y direction in FIG.

  The head carriage 2 is installed on the upper side of the card base P, and stores a plurality of recording heads 3 to be described later according to the number of colors used for image printing on the card base P, with the discharge ports arranged on the lower side. . The head carriage 2 is installed with respect to the main body of the recording apparatus 1 so as to reciprocate in the Y direction in FIG. 5, and reciprocates in the Y direction in FIG. 5 by driving the head scanning unit 501.

  In FIG. 5, the head carriage 2 is white (W), yellow (Y), magenta (M), cyan (C), black (K), light yellow (Ly), light magenta (Lm), and light cyan (Lc). The recording head 3 containing the inks of 10 colors, light black (Lk) and white (W), is drawn, but the number of colors of the recording head 3 accommodated in the head carriage 2 is as follows. It is determined as appropriate.

  The recording head 3 has a discharge port by operating a discharge means (not shown) provided with a plurality of actinic ray curable inks (for example, UV curable ink) supplied by an ink supply means (not shown). To the card base P. The UV ink ejected by the recording head 3 is composed of a coloring material, a polymerizable monomer, a polymerization initiator, etc., and is a monomer accompanying the polymerization initiator acting as a catalyst when irradiated with ultraviolet rays. It has the property of being cured by crosslinking and polymerization reactions.

  During the scanning in which the recording head 3 moves from one end of the recording material P to the other end of the card base P in the Y direction in FIG. UV ink is ejected as ink droplets to the possible region), and ink droplets are landed on the landable region.

  The above scanning is performed as many times as necessary, and after UV ink is ejected toward one landing possible region, the card base P is appropriately moved from the front to the back in FIG. While performing the scan 601, the recording head 3 discharges UV ink to the next landable area adjacent in the depth direction in FIG. 5 to the landable area.

  By repeating the above-described operation and ejecting UV ink from the recording head 3 in conjunction with the head scanning unit 601 and the conveyance unit 600, an image composed of an aggregate of UV ink droplets is formed on the card base P.

  The irradiation unit 4 is a first irradiation unit configured to include an ultraviolet lamp that emits ultraviolet rays in a specific wavelength region with stable exposure energy and a filter that transmits ultraviolet rays of a specific wavelength. Here, as the ultraviolet lamp, a mercury lamp, a metal halide lamp, an excimer laser, an ultraviolet laser, a cold cathode tube, a black light, an LED (light emitting diode) and the like can be applied, and a strip-shaped metal halide lamp, a cold cathode tube, mercury A lamp or black light is preferred.

  The irradiating means 4 has substantially the same shape as the largest one that can be set by the recording apparatus (UV inkjet printer) 1 among the landable areas in which the recording head 3 ejects UV ink by a single scan driven by the head scanning means 601. Or it has a larger shape than the landable area. The irradiation means 4 is fixed on one side of the head carriage 2 so as to be substantially parallel to the card base P.

As a means for adjusting the illuminance of the ink discharge section, not only the entire recording head 3 is shielded, but in addition, the ink discharge section 31 of the recording head 3 and the card are determined from the distance h1 between the irradiation means 4 and the recording material P. It is effective to reduce the distance h2 from the substrate P (h1> h2) or to increase the distance d between the recording head 3 and the irradiation means 4 (d is increased). Further, it is more preferable that a bellows structure 6 is provided between the recording head 3 and the irradiation means 4.
<Photo curable resin on authentication card>
In the present invention, it is preferable to provide a photocurable resin layer on the authentication card in order to improve the card surface strength, card chemical resistance, and image storage stability. In addition to protecting the image surface from scratches, chemicals, etc., the photo-curing resin is protected by ink or transfer foil made of a photo-curing resin composition with a transmittance of 90% or more in terms of image sharpness and color reproducibility. It is preferable to do. When protecting with a transfer foil, the transmittance of the entire transfer layer is more preferably 90% or more as described above.
(Measurement of transmittance of photo-curing resin)
Spectral absorption spectrum was measured using Spectrophotometer U-3200 (manufactured by Hitachi, Ltd.), and transmittance at a wavelength of 400 nm was calculated.
<Clear ink material for card surface protection and its formation method>
As the transparent ink made of a photocurable resin having a transmittance of 90% or more, it is more preferable to use the photocurable ink jet recording material described above. Even when the image surface is protected, since it is recorded and formed by inkjet, the number of processes is small and the printer price is low, which is convenient. <Transfer foil material for card surface protection>
In the IC card issuing device, a general transfer foil can be used to protect the surface for the purpose of improving the surface strength of the card. For example, the following materials can be used.
(Support for transfer foil)
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 polytetrafluoride. Polyethylene fluoride resin such as ethylene, ethylene-tetrafluoroethylene copolymer, polyamide such as nylon 6, nylon 6.6, polyvinyl chloride, vinyl chloride / vinyl acetate copolymer, ethylene / vinyl acetate copolymer Polymer, ethylene / vinyl alcohol copolymer, vinyl polymer such as polyvinyl alcohol and vinylon, cellulose resin such as cellulose triacetate and cellophane, polymethyl methacrylate, polyethyl methacrylate, polyacrylate Acrylic resin such as ethyl acrylate, polybutyl acrylate, etc., synthetic resin sheet such as polystyrene, polycarbonate, polyarylate, polyimide, etc., or paper such as fine paper, thin paper, glassine paper, sulfuric acid paper, single layer such as metal foil Or the laminated body of these two or more layers is mentioned. 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. It 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. When a plurality of types of matting agents are added, both methods may be used in combination. In the case of carrying out uneven processing according to the present invention, it can be applied to one or more of the transfer surface and the back surface. Moreover, you may comprise the antistatic layer as needed.
(Transfer foil release layer)
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. The thickness of the release layer is not particularly limited, but is preferably 0.000 g / m ^{2 to} 3.00 g / m ² , more preferably 0.000005 g / m ^{2 to} 2.00 g / m. m ² , more preferably 0.00001 g / m ^{2 to} 2.00 g / m ² . When transferring two or more transfer foils, a thermoplastic elastomer may be added.

If necessary, a thermosetting resin layer may be used between the release layer of the present invention and the resin layer or the actinic ray curable layer. 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. Further, as described above, in order to prevent the card from adhering to the card and preventing device bugs, it may contain one or more of c) metal oxide fine particles, d) conductive powder, or conductive resin.
(Photocured cured layer)
Next, it is preferable to provide a photocured cured layer adjacent to the release layer. An actinic ray curable resin can be used as the photocurable resin layer. The actinic ray curable resin has addition polymerization property or ring-opening polymerization property, and the addition polymerization compound is a radical polymerizable compound, a photocurable material using a photopolymerizable composition, or the like.

  As the addition-polymerizable compound, a cationic polymerization type photocurable resin is known. Recently, a photocationic polymerization type photocurable resin sensitized to a long wavelength region longer than visible light is also disclosed in, for example, -43633, JP-A-8-324137, and the like. The radical polymerizable compound includes ordinary photopolymerizable compounds and thermopolymerizable compounds. The radical polymerizable compound is a compound having an ethylenically unsaturated bond capable of radical polymerization, and may be any compound as long as it has at least one ethylenically unsaturated bond capable of radical polymerization in the molecule. , Oligomers, polymers and the like having a chemical form.

  Only one kind of radically polymerizable compound may be used, or two or more kinds thereof may be used in combination at an arbitrary ratio in order to improve desired properties. Examples of compounds having an ethylenically unsaturated bond capable of radical polymerization include unsaturated carboxylic acids such as acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid, maleic acid and their salts, esters, urethanes, amides. And radically polymerizable compounds such as unsaturated monomers, acrylonitrile, styrene, various unsaturated polyesters, unsaturated polyethers, unsaturated polyamides, and unsaturated urethanes.

  The addition amount of the radical polymerizable compound in the radical polymerizable composition is preferably 1 to 97% by weight, more preferably 30 to 95% by weight. Particularly preferred among these are compounds that are excellent in stability at room temperature, have a high decomposition rate upon heating, and become colorless upon decomposition. Examples of such compounds include benzoyl peroxide, 2,2 ′ -Azobisisobutyronitrile and the like can be mentioned. Moreover, in this invention, these thermal polymerization initiators can be used 1 type or in mixture of 2 or more types. Furthermore, 0.1-30 weight% is preferable normally in a thermopolymerizable composition, and the range of 0.5-20 weight% is more preferable.

  As a cationic polymerization type photo-curing resin, an epoxy-type UV curable prepolymer of a type (mainly epoxy type) that is polymerized by cationic polymerization and a monomer containing two or more epoxy groups in one molecule. Mention may be made of polymers.

  Examples of such prepolymers include alicyclic polyepoxides, polyglycidyl esters of polybasic acids, polyglycidyl ethers of polyhydric alcohols, polyglycidyl ethers of polyoxyalkylene glycols, and polyglycidyls of aromatic polyols. Examples include ethers, hydrogenated compounds of polyglycidyl ethers of aromatic polyols, urethane polyepoxy compounds, and epoxidized polybutadienes. One of these prepolymers can be used alone, or two or more thereof can be mixed and used. The content of the prepolymer having two or more epoxy groups in one molecule in the coating agent for forming an ultraviolet curable protective layer is preferably 70% by weight or more.

  Other examples of the cationic polymerizable compound contained in the cationic polymerizable composition include (1) styrene derivatives, (2) vinyl naphthalene derivatives, (3) vinyl ethers, and (4) N-vinyl compounds. Can do.

  The content of the cationic polymerizable compound in the cationic polymerizable composition is preferably 1 to 97% by weight, more preferably 30 to 95% by weight. An aromatic onium salt can be mentioned as an initiator of the cationic polymerization photocurable resin. Examples of the aromatic onium salt include salts of Group Va elements of the periodic table, such as phosphonium salts (for example, triphenylphenacylphosphonium hexafluorophosphate), salts of Group VIa elements, such as sulfonium salts (for example, triphenylsulfonium tetrafluoroborate). , Triphenylsulfonium hexafluorophosphate, tris (4-thiomethoxyphenyl) hexafluorophosphate, triphenylsulfonium hexafluoroantimonate), and salts of group VIIa elements such as iodonium salts (eg diphenyliodonium chloride) Etc.). The use of such an aromatic onium salt as a cationic polymerization initiator in the polymerization of an epoxy compound is disclosed in U.S. Pat. Nos. 4,058,401, 4,069,055, and 4,101,513. And 4,161,478. Preferable cationic polymerization initiators include sulfonium salts of Group VIa elements. Among these, from the viewpoint of storage stability of ultraviolet curable and ultraviolet curable compositions, triarylsulfonium hexafluoroantimonate is preferable. In addition, it is described in photopolymerization initiators described in pages 39 to 56 of Photopolymer Handbook (published by Photographic Society Committee, 1989), JP-A 64-13142, JP-A-2-4804. Any compound can be used. If necessary, a sensitizer, a polymerization accelerator, a chain transfer agent, a polymerization inhibitor, and the like can be added to the actinic ray curable resin layer.

The photocured cured layer is preferably 3.0 to 15 g / m ² . Especially preferably, it is 3.0-13 g / m < ² >, More preferably, it is 5.0-13 g / m < ² >. When it is 3.0 g / m ² or less, the scratch strength is lowered, which causes a problem. When the film thickness of the photocured layer is 15 g / m ² or more, the scratch strength is good, but burrs are easily generated due to a change in peeling force after card transfer, and the amount of dust generated in the apparatus is increased and the amount of dust attached is increased. Increases and becomes a problem.

  As a method of curing the photocured layer, any method such as a method of curing at the time of manufacture may be adopted. As the actinic ray, any one that generates an electromagnetic wave active with respect to the polymerization initiator can be used. For example, a laser, a light emitting diode, a xenon flash lamp, a halogen lamp, a carbon arc lamp, a metal halide lamp, a tungsten lamp, a mercury lamp, an electrodeless light source, and the like can be given. Preferred examples include light sources such as xenon lamps, halogen lamps, carbon arc lamps, metal halide lamps, tungsten lamps, mercury lamps, and the energy applied here adjusts the exposure distance, time, and intensity depending on the type of polymerization initiator. By doing so, it can be selected and used in a timely manner. In some cases, the actinic ray may block the air by a method such as nitrogen substitution or under reduced pressure to improve the polymerization rate.

  When a laser is used as a light source, it is easy to reduce the exposure area to a very small size, and high-resolution image formation is possible. As the laser light source, an argon laser, a He—Ne gas laser, a YAG laser, a semiconductor laser, or the like can be preferably used.

For the purpose of preventing falsification, it is possible to provide an optical change element layer transfer layer next to the photocured layer. An optical variable device (OVD) is 1) a two-dimensional CG image of a diffraction grating such as a kinegram, and the image of the line image structure freely moves and changes such as movement, rotation, expansion, and reduction. 1) Characteristic of point, 2) Image such as Pixelgram that changes positive and negative, 3) OSD (Optical Security Device) color that changes from gold to green, 4 ) An image such as LEAD (Long Lasting Economic Anti- Device) which appears to change, 5) A stripe type OVD, 6) A metal foil, etc., Japan Printing Society Journal (1998) Vol. 35, No. 6 Paper materials, special printing techniques, special inks as described in P482-P496 In may be to maintain the security. In the present invention, a hologram is particularly preferable.
(Intermediate layer, primer layer, barrier layer)
The transfer foil preferably has an intermediate layer and / or adhesive layer of polyvinyl butyral resin or polybutyral adjacent to the light-cured cured layer and contains an ultraviolet absorber in the intermediate layer or / and the adhesive layer. . In addition to the intermediate layer, a barrier layer, a hologram layer, an optical change element layer, a primer layer, and the like may be provided for interlayer adhesion and card adhesion without limitation.

  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. The intermediate layer used in the present invention preferably contains at least one selected from an ultraviolet absorber, an antioxidant and a light stabilizer in order to increase the light resistance of the image.

  Any ultraviolet absorber may be used as long as it functions as an ultraviolet absorber for a dye image and can be thermally transferred. For example, JP-A Nos. 59-158287, 63-74666, 63-145089, and 59-196292. , No. 63-122596, No. 61-283595, JP-A-1-204788, and the like, and known compounds for improving image durability in photographs and other image recording materials are used. can do. Specific examples include salicylic acid, benzophenone, benzotriazole, and cyanoacrylate. A pendant polymer having a benzophenone derivative or the like in the side chain is also preferably used. In addition, inorganic fine particles having absorption in the ultraviolet region, ultrafine metal oxide powder dispersants and the like can also be used. Examples of inorganic fine particles include titanium oxide, zinc oxide, and silicon compounds. Examples of the ultrafine metal oxide powder dispersant include ultrafine zinc oxide powder, ultrafine titanium oxide powder, and the like, water or alcohol mixed liquids or various oil-based dispersion media, surfactants, water-soluble polymers, and solvent-soluble polymers. And those made using a dispersing agent such as

  Examples of the antioxidant include antioxidants and compounds known to improve image durability in photographs and other image recording materials. Specific examples include primary antioxidants such as phenols, monophenols, bisphenols, and amines, and secondary antioxidants such as sulfurs and phosphoruss.

  As light stabilizers, JP-A-59-158287, 63-74666, 63-145089, 59-196292, 62-229594, 63-122596, 61-283595 are disclosed. In addition, compounds described in JP-A-1-204788 and the like and compounds known for improving image durability in photographs and other image recording materials can be mentioned. Specific examples include hindered amines.

  In addition to the ultraviolet absorber, antioxidant, and light stabilizer, a binder can be used. In this invention, a polyvinyl butyral resin or polybutyral is used as an intermediate layer from the viewpoint of adhesion to a photocured layer. Particularly preferred.

  In combination, for example, as a thermoplastic resin, vinyl chloride resin, polyester resin, acrylic resin, polyvinyl acetal resin, polyvinyl alcohol, polycarbonate, cellulose resin, styrene resin, urethane resin, urethane acrylate resin, amide resin Resins, urea resins, epoxy resins, phenoxy resins, polycaprolactone resins, polyacrylonitrile resins, thermoplastic elastomers such as styrene (styrene block copolymer (SBC)), olefin (TP), urethane (TPU), Examples include polyester (TPEE), polyamide (TPAE), 1,2-polybutadiene, vinyl chloride (TPVC), fluorine, ionomer resin, chlorinated polyethylene, and silicone. 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. There is no limitation on the degree of polymerization before thermosetting as a thermosetting resin for polybutyral in the intermediate layer. A thermosetting compound may be added to increase the film strength. Specifically, an isocyanate curing agent, an epoxy curing agent, or the like can be used, and the thermal curing conditions are preferably 50 to 90 ° C. and 1 to 24 hours.

The ultraviolet absorber, antioxidant and light stabilizer are preferably 0.05 to 20% by weight, more preferably 0.05 to 10% by weight, based on 100% by weight of the binder. Ultraviolet absorber, an intermediate layer thickness containing an antioxidant and light stabilizer is preferably 0.05~15.0g / ^{m 2,} more preferably 0.05 to 10 g / ^{m 2} , more preferably from 0.1~10.0g / ^{m 2.}
(Adhesive layer)
As the heat-adhesive resin, as the adhesive layer of the transfer foil, as the heat-adhesive resin, ethylene vinyl acetate resin, ethyne ethyl acrylate resin, ethylene acrylic acid resin, ionomer resin, polybutadiene resin, acrylic resin, polystyrene resin, polyester Examples thereof include resins, olefin resins, urethane resins, and tackifiers (for example, phenol resins, rosin resins, terpene resins, petroleum resins, etc.) and copolymers or mixtures thereof. In addition, this layer may contain the ultraviolet absorber, the antioxidant and the light stabilizer described above.
<Transfer foil formation method>
The ID card transfer of the transfer foil can usually be performed using a means capable of applying pressure while heating, such as a thermal head, a heat roller, or a hot stamp machine. Specifically, when using a hot stamping machine, it is heated to a surface temperature of 150 to 300 ° C. and heated at a pressure of 50 to 500 kg / cm ² for 0.5 to 10 seconds using a heat roller having a diameter of 5 cm and a rubber hardness of 85. Transfer. As a specific use example of the present invention, a hot stamp apparatus is shown in FIG.

<Hot stamp device>
FIG. 6 is a conceptual diagram showing a configuration example of the hot stamp apparatus 500. In this example, the transfer cartridge 400 is detachably attached to the hot stamp apparatus 500. FIG. 6 shows a state where the transfer cartridge 400 is loaded in the hot stamp apparatus 500.

  The hot stamp device 500 is provided with a card paper supply port 425 and a card discharge port 426, and a heat roller device 427 is attached thereto. The thermal transfer sheet 410 is fed from the original winding core 451A of the transfer cartridge 400. For example, the thermal transfer sheet 410 is guided by the guide member 428A in the tape accommodating portion 421, passes from the U-shaped portion 423 through the lower portion of the heat roller device 427, and the driven roller portion 422, and then the other in the tape accommodating portion 421. The guide member 428B is guided to reach the take-up core 451B.

In the present invention, the transfer method to the authentication card and the transfer foil peeling method from the authentication card are not particularly limited, and apparatuses such as JP-A-2001-063294, JP-A-2001-1672, and 2001-1674 can be used. . In the present invention, the transfer foil is preferably transferred at least once, and a plurality of transfer foils are preferably used in order to improve the scratch strength.
[Authentication card creation device]
Hereinafter, embodiments of an authentication card making apparatus will be described with reference to the drawings. However, the present invention is not limited to the description of the embodiments and the drawings. An embodiment of the authentication card creation device is shown in FIG.

  In the authentication card making apparatus A shown in FIG. 6, the card base material supply unit 10 and the information recording unit 20 are arranged in the upper position, and then a protective layer applying unit 40, an actinic ray irradiation unit 45, and a stacker for a card stacking unit. The unit 60 is arranged and an authentication card is created as an image recording body, but a sheet can also be created.

  In the card base material supply unit 10, a plurality of card base materials P, which have been cut in a card shape in advance to write personal information of the card user, are stocked with the face for recording a face photograph facing upward. . The card base material supply unit 10 constitutes a stocker unit for accumulating a plurality of card bases before information recording. In this example, the card base P has a support and an image receiving layer, and the card base P is automatically supplied one by one from the card base supply unit 10 at a predetermined timing.

  Further, in order to improve the positioning accuracy of the card substrate P, the card substrate supply unit 10 includes a card positioning unit 80. A plan view of the positioning mechanism provided in the card positioning unit 80 is shown in FIG. The card base P can be aligned with the positioning member 81 by a fixing member on the long side and the abutting member 82 at the time of drive type conveyance on the short side, so that the card direction can be adjusted. Position to supply.

  The information recording unit 20 includes the recording head 3 and a platen. The recording apparatus includes a transport unit 50 that transports the supplied card base P, and a card transport member 55 is installed in the transport unit 50. The conveying member 55 can be conveyed by a platen method, a conveyor method, or the like in order to improve the printing position accuracy during conveyance. In this embodiment, a resin member having a function of absorbing ultraviolet rays is used, and a belt conveyor method is used. It carried out in. The recording head 3 stores four colors of ink, yellow (Y), magenta (M), cyan (C), and black (K), and overcoat ink (OP) is applied to the protective layer applying unit 40 as a separate unit. Drawings with one color stored and tabs.

  The recording head 3 is configured so that the card base material is ejected from the ejection port by the operation of ejection means 31 provided with a plurality of actinic ray curable inks (for example, UV curable ink) supplied by an ink supply means (not shown). Discharge toward P. The recording head 3 can describe bibliographic information such as a card user's face photo and authentication identification information such as the name and card issuance date. The overcoat ink (OP) is discharged from the discharge port toward the card base P by the operation of the discharge means 41 provided in the protective layer applying unit 40.

  The actinic ray irradiation unit 45 includes an irradiation unit 46. The irradiating means 46 uses a metal halide lamp as an ultraviolet lamp to photocure actinic ray curable ink formed by the recording head 3. The irradiation means 46 was fixed on one side of the information recording unit 20 so as to be substantially parallel to the card base P.

  The card base P coming out from the irradiation means 46 was fed out by the transport roll 56 and accumulated in the stocker unit 60.

  An authentication card making apparatus B according to another embodiment is shown in FIG. In the authentication card making apparatus B, the card base material supply unit 10 and the information recording unit 20 are arranged at an upper position, and then a protective layer applying unit 50 and a stacker unit 60 for card stacking unit are arranged. The same components as those in the authentication card making apparatus A in FIG. In this embodiment, the irradiation means 46 uses a metal halide lamp as an ultraviolet lamp and photocures the actinic ray curable ink formed by the recording head 3. The actinic ray irradiation unit 45 was fixed and installed on one side of the information recording unit 20.

The card substrate P that has come out of the actinic ray irradiation unit 45 is fed out by the transport roll 56. In the protective layer application unit 50, the photocured layer-containing transfer foil 64 is set in the transfer foil cassette 71, and the card surface 70 is provided with a transparent surface protective transfer layer by thermal transfer with the thermal transfer roll 65. After the surface protective layer was formed on the card substrate 70, the card substrate 70 was fed out by the transport roll 57 and then accumulated in the stocker unit 60.
[Example]
Hereinafter, the present invention will be described by way of examples, but the embodiments of the present invention are not limited thereto.
<Method for creating card sheet member>
<Creation of the first sheet member>
(Creation of first sheet members (image receiving sheets) 1 to 3)
As a surface sheet, a white support having a thickness of 188 μm made of U2L98W (with antistatic layer) manufactured by Teijin DuPont Films Ltd. was used. The 1st sheet | seat members 1-3 formed by coating and drying the image receiving layer and information carrier layer which consist of the following composition were formed.
(Image receiving layer) Film thickness 10 μm
Urethane acrylate oligomer (Shin Nakamura Chemical Co., Ltd .: NK Oligo UA512) 55 parts Polyester acrylate (Toagosei Co., Ltd .: Aronix M6200) 15 parts Urethane acrylate oligomer (Shin Nakamura Chemical Co., Ltd .: NK Oligo UA4000) 25 parts Hydroxycyclohexyl phenyl ketone ( Ciba Specialty Chemicals: Irgacure 184) 5 parts methyl ethyl ketone 100 parts In order to adjust the chromaticity of the white part of the present invention, the image receiving layer previously contains the following magenta dye and cyan dye in appropriate amounts, respectively. 1-3 were created.

Magenta dye (MS Magenta manufactured by Mitsui Toatsu Dye Co., Ltd.)
Cyan dye (Kayaset Blue 136, manufactured by Nippon Kayaku Co., Ltd.)
Sheet base materials 1 to 3 were prepared in the same manner except that the addition amounts of magenta dye and cyan dye were changed.

The coating solution was dried at 90 ° C./30 sec, and then photocured with a mercury lamp (300 mJ / cm ² ).

After forming the white background portion, the chromaticity of the sheet members 1 to 3 was measured using CIE D65 (6504K) as a reference light source with a C-2000 color analyzer manufactured by Hitachi, Ltd. The results of the implementation are shown in Table 1.
(Formation of information carrier consisting of format print layer)
On the sheet members 1 to 3 obtained above, the first sheet member 1 was obtained by letterpress printing using UV printing ink (FD-O black, manufactured by Naruto Ink) in a standard format. The UV irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp. The authentication card finished using this sheet is shown in FIG.

(Creation of first sheet member (image receiving sheet) 4)
A first sheet member was prepared in the same manner as the first sheet member 1 except that the information carrier comprising the format printing was not formed on the sheet base material described in the first sheet member 1. An authentication card completed using this sheet is shown in FIG.

(Creation of first sheet member (image receiving sheet) 5)
A first sheet member 5 was obtained by letterpress printing using the following scale pigment layer composition and UV printing ink (FD-O black, manufactured by Naruto Ink) on the sheet base material described in the first sheet member 1. . The UV irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp. Otherwise, the first sheet member 5 was created in the same manner as the first sheet member 1. The finished card using this sheet is shown in FIG. Further, as shown in the drawing, a 1-point minute character was formed by the above method as a micro character.

(Formation of scale pigment layer)
(Scale pigment layer composition 1)
Iriodin211 (manufactured by Merck) 45 parts urethane acrylate oligomer 40 parts Dirocure 1173 (manufactured by Ciba Specialty Chemicals) 5 parts trimethylolpropane acrylate 10 parts <Creation of second sheet member>
(Creation of second sheet member (writing sheet) 1)
A U2L98W (with antistatic layer) thickness 188 μm white support manufactured by Teijin DuPont Films Ltd. was used as the back sheet. A writing layer made of the following composition was coated and dried sequentially so that the thicknesses were 5 μm, 15 μm, and 0.2 μm, respectively, thereby forming a second sheet member.
<First writing layer forming coating solution>
Polyester resin [Toyobo Co., Ltd .: Byron 200] 8 parts Isocyanate 1 part [Nippon Polyurethane Industry Co., Ltd .: Coronate HX]
Carbon black Trace amount Titanium dioxide particles [Ishihara Sangyo Co., Ltd .: CR80] 1 part Methyl ethyl ketone 80 parts Butyl acetate 10 parts <Second writing layer forming coating solution>
4 parts of polyester resin [Toyobo Co., Ltd .: Bironal MD1200]
Silica 5 parts Titanium dioxide particles [manufactured by Ishihara Sangyo Co., Ltd .: CR80] 1 part 90 parts of water <third writing layer forming coating solution>
Polyamide resin [manufactured by Sanwa Chemical Industry Co., Ltd .: Sanmide 55] 5 parts Methanol 95 parts (Formation of information carrier layer on writing layer)
Format printing (ruled lines, issuer name, issuer telephone number) was performed by the offset printing method. UV ink was used as printing ink. The UV irradiation conditions during printing were equivalent to 200 mj with a high-pressure mercury lamp.

(Creation of second sheet member (writing sheet) 2)
A U2L98W (with antistatic layer) thickness 188 μm white support manufactured by Teijin DuPont Films Ltd. was used as the second sheet member 2 as the back sheet. The finished card using this sheet is shown in FIG.
<Method for producing card base>
<Manufacturing method 1>
FIG. 14 shows a typical card substrate manufacturing apparatus. FIG. 15 shows an appearance sheet diagram of the first sheet member, and FIG. 16 shows an appearance sheet diagram of the second sheet member. Using the card base material manufacturing apparatus of FIG. 14 as an embodiment, a card base material mounted with electronic components was created. This card substrate manufacturing apparatus is provided with a long sheet-like second sheet member (back sheet) and a sheet-like sheet-like first sheet member (front sheet). Moisture curable hot melt adhesive MK2013 made by Sekisui Chemical Co., Ltd. is melted at 120 ° C. under nitrogen from the adhesive supply section, and the adhesive is supplied from the adhesive supply section by the T-die coating method. An electronic component composed of a non-woven fabric having a thickness of 300 μm, an antenna, a reinforcing plate, and an IC chip is disposed. For example, an electronic component as shown in FIG. 17 is shown. IC card adhesive, Sekisui Chemical Co., Ltd. moisture-curing hot melt adhesive MK2013 adhesive is melted at 120 ° C. under nitrogen from the adhesive supply section to the second sheet member (back sheet), and the adhesive is supplied The adhesive was supplied from the part by a T-die coating method.

The first sheet member and the second sheet member coated with the low-temperature adhesive are bonded by a heating / pressurizing roll (pressure 3 kg / cm ² , roll surface temperature 65 ° C.) and adjusted to 760 μm by a film thickness control roll. A master for the controlled card base 4 is created. It is preferable to cut the makeup after the adhesive has been cured and the adhesiveness to the support has been sufficiently achieved. In this invention, after the curing is accelerated for 14 days in a 23 ° C./55% environment, the original plate is formed as shown in FIG. A card substrate having a size of 55 mm × 85 mm and a thickness of 760 μm could be obtained using the card punching machine shown in FIG. The card thickness was 760 μm. Table 1 shows the thickness distribution and surface roughness according to Formula 1.
<Manufacturing method 2>
Using the card base material manufacturing apparatus of FIG. 14 as an embodiment, a card base material mounted with electronic components was created. This card substrate manufacturing apparatus is provided with a long sheet-like second sheet member (back sheet) and a sheet-like sheet-like first sheet member (front sheet). Moisture curable hot melt adhesive MK2013 manufactured by Sekisui Chemical Co., Ltd. is melted at 110 ° C. under nitrogen from the adhesive supply section, and the adhesive is supplied from the adhesive supply section by the T-die coating method. An electronic component composed of a non-woven fabric having a thickness of 300 μm, an antenna, a reinforcing plate, and an IC chip is disposed. IC card adhesive, Sekisui Chemical Co., Ltd. moisture-curing hot melt adhesive MK2013 adhesive is melted at 110 ° C. under nitrogen from the adhesive supply section to the second sheet member (back sheet), and the adhesive is supplied The adhesive was supplied from the part by a T-die coating method.

The first sheet member and the second sheet member coated with the low-temperature adhesive are bonded by a heating / pressurizing roll (pressure 3 kg / cm ² , roll surface temperature 65 ° C.), and by a film thickness control roll An original plate for the card substrate 4 controlled to 900 μm is created. It is preferable to cut the makeup after the adhesive has been sufficiently cured and the adhesiveness to the support has been sufficiently achieved. In this invention, after the curing is accelerated for 14 days in a 23 ° C./55% environment, the original plate is formed as shown in FIG. A card substrate having a size of 55 mm × 85 mm and a thickness of 760 μm could be obtained using the card punching machine shown in FIG. The card thickness was 760 μm. Table 1 shows the thickness distribution and surface roughness according to Formula 1.
<Manufacturing method 3>
Using the card base material manufacturing apparatus of FIG. 14 as an embodiment, a card base material mounted with electronic components was created. This card substrate manufacturing apparatus is provided with a long sheet-like second sheet member (back sheet) and a sheet-like sheet-like first sheet member (front sheet). Moisture curable hot melt adhesive MK2013 made by Sekisui Chemical Co., Ltd. is melted at 120 ° C. under nitrogen from the adhesive supply section, and the adhesive is supplied from the adhesive supply section by the T-die coating method. An electronic component composed of a non-woven fabric having a thickness of 300 μm, an antenna, a reinforcing plate, and an IC chip is disposed. IC card adhesive, Sekisui Chemical Co., Ltd. moisture-curing hot melt adhesive MK2013 adhesive is melted at 120 ° C. under nitrogen from the adhesive supply section to the second sheet member (back sheet), and the adhesive is supplied The adhesive was supplied from the part by a T-die coating method.

The first sheet member and the second sheet member coated with the low-temperature adhesive are bonded by a heating / pressurizing roll (pressure 0.1 kg / cm ² , roll surface temperature 65 ° C.), and a film thickness control roll As a result, an original for the card base 4 controlled to 900 μm is produced. It is preferable to cut the makeup after the adhesive is sufficiently cured and adhered to the support. In the present invention, after curing is accelerated for 14 days in an environment of 23 ° C./55%, the original is shown in FIG. A card substrate having a size of 55 mm × 85 mm and a thickness of 760 μm could be obtained by the card punching machine shown. The card thickness was 760 μm. Table 1 shows the thickness distribution and surface roughness according to Formula 1.
<Manufacturing method 4>
The card base material manufacturing apparatus shown in FIG. 14 used in the manufacturing method 1 is changed to the manufacturing apparatus shown in FIG. 19, and the electronic components composed of a nonwoven fabric, an antenna, a reinforcing plate, and an IC chip are not arranged. It was manufactured by a simple method.
<Manufacturing method 5>
The card base material manufacturing apparatus shown in FIG. 14 used in the manufacturing method 2 is changed to the manufacturing apparatus shown in FIG. 19, and the electronic components composed of a nonwoven fabric, an antenna, a reinforcing plate, and an IC chip are not arranged. It was manufactured by a simple method.
<Manufacturing method 6>
The card base material manufacturing apparatus shown in FIG. 14 used in the manufacturing method 3 is changed to the manufacturing apparatus shown in FIG. 19 and the electronic components composed of a nonwoven fabric, an antenna, a reinforcing plate, and an IC chip are not arranged. It was manufactured by a simple method.
<Card making materials>
Using the following information recording member on the card base, that is, the IC card or the ID card base, the information is recorded using any one of the above-described card creation devices shown in FIGS. A protective layer was formed to make a card. In addition, the following information recording material ink used for the preparation apparatus was used by being supplied to the ink supply section of the card preparation apparatus. Ink that was not created in the example was created empty in the card creation device.
<Information recording material>
<Ink material 1 for information recording>
[Preparation of cationic polymerizable ink]
(Production of yellow ink)
A yellow pigment dispersion was obtained with the following composition.
C. I. Pigment Yellow-180 15 parts by mass dispersant (manufactured by Avecia, Solsperse 24000) 2 parts by mass Aron Oxetane OXT-221 (manufactured by Toa Gosei) 83 parts by mass Next, the following blending is performed, and filtration is performed with a 0.8 μm membrane filter, Dehydration was performed under reduced pressure while heating to 50 ° C. to obtain a yellow ink.
17 parts by weight of the yellow pigment dispersion Aron oxetane OXT-221 (manufactured by Toa Gosei) 70 parts by weight Celoxide 2021P (manufactured by Daicel UCB) 30 parts by weight UVI-6990 (manufactured by Dow Chemical, photoacid generator) 5 parts by weight (magenta ink) Production)
A magenta pigment dispersion was obtained with the following composition.
C. I. Pigment Red-146 15 parts by mass dispersant (Avecia, Solsperse 24000) 2 parts by mass Aron Oxetane OXT-221 (manufactured by Toa Gosei) 83 parts by mass Next, the following blending is performed, and filtration is performed with a 0.8 μm membrane filter, Dehydration was performed under reduced pressure while heating to 50 ° C. to obtain a magenta ink.
Magenta pigment dispersion 17 parts by weight Aron Oxetane OXT-221 (manufactured by Toa Gosei) 70 parts by weight Celoxide 2021P (manufactured by Daicel UCB) 30 parts by weight UVI-6990 (manufactured by Dow Chemical, photoacid generator) 5 parts by weight (cyan ink) Production)
A cyan pigment dispersion was obtained with the following composition.

C. I. Pigment Blue 15: 4 20 parts by mass dispersant (Avecia, Solsperse 24000) 3 parts by mass Aron Oxetane OXT-221 (manufactured by Toa Gosei) 77 parts by mass Next, the following formulation is carried out and filtered through a 0.8 μm membrane filter. The ink was dehydrated under reduced pressure while being heated to 50 ° C. to obtain a cyan ink.
Cyan pigment dispersion 12 parts by weight Aron Oxetane OXT-221 (manufactured by Toa Gosei) 70 parts by weight Celoxide 2021P (manufactured by Daicel UCB) 30 parts by weight UVI-6990 (manufactured by Dow Chemical, photoacid generator) 5 parts by weight (black ink) Production)
A black pigment dispersion was obtained with the following composition.
C. I. Pigment Black 7 20 parts by mass dispersant (Avecia, Solsperse 24000) 3 parts by mass Aron Oxetane OXT-221 (manufactured by Toa Gosei) 77 parts by mass Next, the following blending was performed, and the mixture was filtered through a 0.8 μm membrane filter, 50 ° C. The ink was dehydrated under reduced pressure while being heated to obtain a black ink.
15 parts by mass of the black pigment dispersion Aron oxetane OXT-221 (manufactured by Toa Gosei) 70 parts by mass of Celoxide 2021P (manufactured by Daicel UCB) 30 parts by mass of UVI-6990 (manufactured by Dow Chemical, photoacid generator) 5 parts by mass were obtained. A piezo-type inkjet nozzle (nozzle pitch 360 dpi (dpi represents the number of dots per inch, that is, 2.54 cm)) that can obtain a droplet size of 7 pl for each ink is used with the nozzle portion heated and controlled. No. 1, a nozzle, a light source, and a base material were arranged. However, yellow (Y), magenta (M), cyan (C), and black (K) were used for the recording head 3.
<Ink material 2 for information recording>
[Preparation of non-curable ink-jet ink]
(Production of yellow ink)
Dirent Yellow 50 (CI.29025) 6 parts by weight diethylene glycol 47 parts by weight water 47 parts by weight (preparation of magenta ink)
M: xylene red B (CI. 45100) 6 parts by weight diethylene glycol 47 parts by weight water 47 parts by weight (production of cyan ink)
C: Light Green SF Yellowish 6 parts by weight Diethylene glycol 47 parts by weight
47 parts by weight of water (preparation of black ink)
C. I. Pigment Black 7 6 parts by weight Diethylene glycol 47 parts by weight
Water 47 parts by weight <information recording ink material 3>
[Production of curable inkjet ink]
(Production of yellow ink)
Pigment Yellow 190 20 parts by weight Lauryl acrylate 15 parts by weight Stearyl acrylate 10 parts by weight Tetraethylene glycol diacrylate 25 parts by weight Ethylene oxide-modified trimethylolpropane triacrylate (manufactured by Kyoeisha Chemical Co., Ltd., TMP-3EO-A) 24.5 parts by weight Initiator 1 (Ciba, Irgacure 907) 5 parts by weight initiator 2 (diethylthioxanthone) 0.5 parts by weight (production of magenta ink)
Pigment Red122 20 parts by weight Lauryl acrylate 15 parts by weight Stearyl acrylate 10 parts by weight Tetraethylene glycol diacrylate 25 parts by weight Ethylene oxide-modified trimethylolpropane triacrylate (manufactured by Kyoeisha Chemical Co., Ltd., TMP-3EO-A) 24.5 parts by weight Initiator 1 (Ciba, Irgacure 907) 5 parts by weight initiator 2 (diethylthioxanthone) 0.5 parts by weight (preparation of cyan ink)
Pigment Blue 15: 3 20 parts by weight Lauryl acrylate 15 parts by weight Stearyl acrylate 10 parts by weight Tetraethylene glycol diacrylate 25 parts by weight Ethylene oxide modified trimethylolpropane triacrylate
(Kyoeisha Chemical Co., Ltd., TMP-3EO-A) 24.5 parts by weight initiator 1 (Ciba, Irgacure 907 5 parts by weight initiator 2 (diethylthioxanthone) 0.5 parts by weight (preparation of black ink)
C. I. Pigment Black 7 20 parts by weight Lauryl acrylate 15 parts by weight Stearyl acrylate 10 parts by weight Tetraethylene glycol diacrylate 25 parts by weight Ethylene oxide modified trimethylolpropane triacrylate
(Kyoeisha Chemical Co., TMP-3EO-A) 24.5 parts by weight initiator 1 (Ciba, Irgacure 907 5 parts by weight initiator 2 (diethylthioxanthone) 0.5 parts by weight <ink material for information recording 4>
An ink material was prepared in the same manner as in the information recording ink material 1 except that the following material was used as an overcoat ink material as a surface protective layer forming material. The ink transmittance was 97%.
(Preparation of overcoat ink)
Aron oxetane OXT-221 (manufactured by Toa Gosei) 70 parts by mass Celoxide 2021P (manufactured by Daicel UCB) 30 parts by mass UVI-6990 (manufactured by Dow Chemical, photoacid generator) 5 parts by mass <ink material for information recording 5>
An ink material was prepared in the same manner as in the information recording ink material 1 except that the following material was used as an overcoat ink material as a surface protective layer forming material. The ink transmittance was 96%.
(Preparation of overcoat ink)
Lauryl acrylate 25 parts by weight Stearyl acrylate 10 parts by weight Tetraethylene glycol diacrylate 30 parts by weight Ethylene oxide modified trimethylolpropane triacrylate
(Kyoeisha Chemical Co., TMP-3EO-A) 29.5 parts by weight of initiator 1 (Ciba, Irgacure 907 5 parts by weight of initiator 2 (diethylthioxanthone) 0.5 parts by weight <ink material 6 for information recording>
An ink material was prepared in the same manner as in the information recording ink material 1 except that the following material was used as an overcoat ink material as a surface protective layer forming material. The ink transmittance was 76%.
(Preparation of overcoat ink)
Lauryl acrylate 25 parts by weight Stearyl acrylate 10 parts by weight Tetraethylene glycol diacrylate 30 parts by weight Ethylene oxide modified trimethylolpropane triacrylate
(Kyoeisha Chemical Co., TMP-3EO-A) 29.5 parts by weight initiator 1 (Ciba, Irgacure 907 5 parts by weight initiator 2 (diethylthioxanthone) 0.5 parts by weight carbon black 1 part by weight <for information recording Ink material 7>
An ink material was prepared in the same manner as in the information recording ink material 1 except that the following material was used as an overcoat ink material as a surface protective layer forming material. The transmittance was 99%.
(Preparation of overcoat ink)
Polyvinyl alcohol (GL-03 manufactured by Kuraray Co., Ltd.) 2 parts by weight Diethylene glycol 49 parts by weight Water 49 parts by weight <Information recording ink material 8>
An ink material was prepared in the same manner as in the information recording ink material 2 except that the following material was used as an overcoat ink material as a surface protective layer forming material. The transmittance was 97%.
(Preparation of overcoat ink)
Aron oxetane OXT-221 (manufactured by Toa Gosei) 70 parts by mass Celoxide 2021P (manufactured by Daicel UCB) 30 parts by mass UVI-6990 (manufactured by Dow Chemical, photoacid generator) 5 parts by mass <ink material for information recording 9>
An ink material was prepared in the same manner as in the information recording ink material 2 except that the following material was used as an overcoat ink material as a surface protective layer forming material. The transmittance was 99%.
(Preparation of overcoat ink)
Polyvinyl alcohol (GL-03 manufactured by Kuraray Co., Ltd.) 2 parts by weight Diethylene glycol 49 parts by weight Water 49 parts by weight In order to further protect the surface of the image obtained as described above, an authentication card making apparatus B shown in FIG. A surface protective layer was formed using the following materials in the application part.
<Creation of surface protective layer material>
Using the surface protective transfer foils 1 to 3 described below, the card was protected by the authentication card making apparatus B. The surface protective transfer foils 1 to 3 were installed in the protective layer application part of FIG.
[Synthesis Example 1]
[IC card surface protective agent-added resin synthesis example 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 a synthetic binder 1 of the desired acrylic copolymer.
[Preparation of surface protection transfer foil 1]
A transparent resin transfer foil 1 was formed by coating and drying the following formulation on one side of polyethylene terephthalate (S-25) manufactured by Diafoil Hoechst Co., Ltd. by wire bar coating.
(Release layer) Film thickness 0.5μm
Acrylic resin (Dainal BR-87, manufactured by Mitsubishi Rayon Co., Ltd.) 5 parts polyvinyl acetoacetal (SP value: 9.4)
(Sekisui Chemical Co., Ltd., KS-1) 5 parts methyl ethyl ketone 40 parts toluene 50 parts <intermediate layer forming coating solution> film thickness 0.3 μm
Polyvinyl butyral resin [manufactured by Sekisui Chemical Co., Ltd .: ESREC BX-1] 5 parts Tuftex M-1913 (Asahi Kasei) 3.5 parts curing agent Polyisocyanate [Coronate HX made by Nippon Polyurethane] 1.5 parts methyl ethyl ketone 20 parts toluene 70 After the partial application, the curing agent was cured at 50 ° C. for 24 hours.
<Barrier layer forming coating solution> Film thickness 0.5 μm
4 parts of BX-1 (polyvinyl butyral resin) [manufactured by Sekisui Chemical Co., Ltd .: S-REC B series]
Tuftex M-1913 (Asahi Kasei) 4 parts curing agent Polyisocyanate [Coronate HX made by Nippon Polyurethane] 2 parts Toluene 50 parts Methyl ethyl ketone 40 parts
<Adhesive layer forming coating solution> Film thickness 0.3 μm
Urethane-modified ethylene ethyl acrylate copolymer [manufactured by Toho Chemical Co., Ltd .: Hitec S6254B] 8 parts Polyacrylate copolymer [manufactured by Nippon Pure Chemicals Co., Ltd .: Jurimer AT510] 2 parts Water 45 parts Ethanol 45 parts Above A transparent resin transfer foil 1 composed of a release layer, an intermediate layer, and an adhesive layer having the composition was prepared. The transmittance was 97%. Further, a pressure of 150 kg / cm is applied using a heat roller having a diameter of 5 cm and a rubber hardness of 85, which is heated to a surface temperature of 200 ° C. using a transfer foil having a transparent protective layer having the above structure on the image receptor on which images and characters are recorded. ² was applied for 1.2 seconds to perform transfer.
[Preparation of surface protection transfer foil 2]
(Release layer forming coating solution) Film thickness 0.2 μm
Polyvinyl alcohol (GL-05) (manufactured by Nippon Synthetic Chemical Co., Ltd.) 10 parts
90 parts of water The release layer was coated under a drying condition of 90 ° C./30 sec.
(Actinic ray curable compound) Film thickness 7.0 μm
Shin-Nakamura Chemical Co., Ltd. A-9300 / Shin-Nakamura Chemical Co., Ltd. EA-1020 = 35 / 11.75 parts Reaction initiator Irgacure 184 Nippon Ciba-Geigy Co., Ltd. 5 parts Actinic ray curable layer use resin 1 48 parts Dainippon Ink Surfactant F-179 0.25 parts Toluene 500 parts The applied actinic ray curable compound was dried at 90 ° C./30 sec, and then photocured with a mercury lamp (300 mJ / cm ² ).
<Intermediate layer forming coating solution> Film thickness 1.0 μm
Polyvinyl butyral resin [Sekisui Chemical Co., Ltd. product: ESREC BX-1]
3.5 parts Tuftex M-1913 (Asahi Kasei) 5 parts Curing agent Polyisocyanate [Coronate HX made by Nippon Polyurethane] 1.5 parts 90 parts of methyl ethyl ketone Curing of the curing agent after application was carried out at 50 ° C. for 24 hours.
<Adhesive layer forming coating solution> Film thickness 0.5 μm
Urethane-modified ethylene ethyl acrylate copolymer [manufactured by Toho Chemical Co., Ltd .: Hitec S6254B] 8 parts Polyacrylic acid ester copolymer [manufactured by Nippon Pure Chemicals Co., Ltd .: Jurimer AT510] 2 parts Water 45 parts Ethanol 45 parts Application Thereafter, drying was performed at 70 ° C./30 sec. The transmittance was 95%.

Further, on the image receptor or transparent resin layer on which images and characters are recorded, the scale pigment-containing layer is heated to a surface temperature of 200 ° C. using the actinic ray curable transfer foil 1 having the above-described structure, and has a diameter of 5 cm and a rubber hardness of 85. Transfer was performed by applying heat for 1.2 seconds at a pressure of 150 kg / cm ² using a heat roller.
[Preparation of surface protection transfer foil 3]
(Release layer forming coating solution) Film thickness 0.2 μm
Polyvinyl alcohol (GL-05) (manufactured by Nippon Synthetic Chemical Co., Ltd.) 10 parts Water After 90 parts coating, drying was performed at 90 ° C./30 sec.
(Hologram layer) Film thickness 2μm
(Actinic ray curable compound) Film thickness 7.0 μm
Shin-Nakamura Chemical Co., Ltd. A-9300 / Shin-Nakamura Chemical Co., Ltd. EA-1020 = 35 / 11.75 parts Reaction initiator Irgacure 184 Nippon Ciba-Geigy Co., Ltd. 5 parts Actinic ray curable layer use resin 1 48 parts Dainippon Ink Surfactant F-179 0.25 parts Toluene 500 parts The applied actinic ray curable compound was dried at 90 ° C./30 sec, and then photocured with a mercury lamp (300 mJ / cm ² ).
<Intermediate layer forming coating solution> Film thickness 1.0 μm
Polyvinyl butyral resin [manufactured by Sekisui Chemical Co., Ltd .: ESREC BX-1] 3.5 parts Tuftex M-1913 (Asahi Kasei) 5 parts Curing agent Polyisocyanate [Coronate HX made by Nippon Polyurethane] 1.5 parts Methyl ethyl ketone 90 parts After application Then, drying was performed at 90 ° C./30 sec, and curing of the curing agent after coating was performed at 50 ° C. for 24 hours.
<Adhesive layer forming coating solution> Film thickness 0.5 μm
Urethane-modified ethylene ethyl acrylate copolymer [Toho Chemical Industries, Ltd .: Hitech S6254B] 8 parts
Polyacrylic acid ester copolymer [Nippon Pure Chemicals Co., Ltd .: Jurimer AT510] 2 parts Water 45 parts Ethanol
After coating, drying was performed at 70 ° C./30 sec. The transmittance was 93%.

[Card evaluation method]
<Image quality>
Regarding the face image quality, sensory evaluation with 1 point of inferiority and 5 points of inferiority was performed on 30 subjects, and the superiority or inferiority of the quality was evaluated numerically by the average value.
<Fuzziness>
The faintness of the created image was evaluated.
◎ ・ ・ ・ Can print without problems ○ ・ ・ ・ Some levels can be discriminated, but can be discriminated △ ・ ・ ・ Partial density has fallen and cannot be discriminated ×× Color is completely missing <Dimensionality>
The dimensions of the created bibliographic information and authentication information (face images, etc.) were evaluated.
◎ ・ ・ ・ Dimensions that have no problem ○ ・ ・ ・ Partial dimensional deviation, but no problem △ ・ ・ ・ Partial dimensional deviation, difficult to use × ・ ・ ・ Complete dimensions Missing and problem level <Scratch strength (wear resistance) measurement method>
Using an abrasion resistance tester (HEIDON-18), changing the load with a 0.1 mmφ sapphire needle at 0-300 g, sliding the surface of the card created, bibliographic information, authentication information (face images, etc.) ) Was measured for the load when scratching started. The larger the load, the better.
<Forgery and alteration>
Ten people other than the card material designer judged whether it was easy to forge or not, and evaluated the anti-counterfeiting property. Calculated by the number of respondents who answered that they can forge / number of respondents, and described the ease in%.
<Water resistance evaluation>
The finished ID card was put into a cup filled with tap water, immersed in 23 ° C./14 days, and evaluated by evaluating the image deterioration state of the card.
×: There is a difference, and the functions of the image and the information are lost. Δ: There is a slight difference, but the function is not deteriorated.
・; There is no change from the initial card.
<Evaluation of tape peeling (adhesion)>
A cellophane pressure-sensitive adhesive tape (manufactured by Nichiban) was strongly pasted on the surface of the cured protective layer, and the cellophane pressure-sensitive adhesive tape was rapidly peeled off from the surface, and then the peeled state was evaluated by the method prescribed in the JIS K-5400 cross-cut tape method.

  Cut the surface with a sharp knife such as a knife at an angle of 30 ° to make 100 1 mm or 1.5 mm grids (10 × 10) that reach the substrate. Was measured. If the coating film has good overall adhesion, after making a grid, apply adhesive tape to the surface, peel off the tape, and measure the number of peeled off parts in the thickness direction. And evaluated.

The evaluation was performed by the following evaluation score method.
Cross-cut test score Evaluation score Wound condition 10 Each cut is thin and smooth on both sides, and the square of the intersection of the cuts cannot be seen at a glance.
8 There is a slight peeling at the intersection of the cuts, there is no peeling at a glance, and the area of the defect is within 5% of the total square area.
6 Both sides of the cut and the intersection are separated, and the area of the defect is 5 to 15% of the total square area.
4 The width of the peeling due to the cut is wide, and the area of the defect is 15 to 35% of the total square area.
2 The width of the peeling due to the cut is wider than 4 points, and the area of the missing part is 35 to 65% of the total square area.
0 The area of peeling is 65% or more of the total square area.

Table 1

  As is clear from Table 1, prescribed actinic ray curing is performed on a card substrate having white portion chromaticities of 90 ≦ L * ≦ 98, −5.0 ≦ a * ≦ 3, and −9 ≦ b * ≦ 2. When the information is formed by irradiating the resin layer, the image quality, fading, dimensionality, abrasion resistance, water resistance, and tape peeling are good (Examples 1 to 12, 14 to 17), but the white portion chromaticity is defined. Image quality decreased outside the range (Comparative Examples 1 and 2).

  Also, the card thickness distribution H (mm) is measured in a certain direction, and the card thickness change amount at 2 mm intervals L (mm) ΔH (mm) satisfies the formula (ΔH / L ≦ 0.05). When the information is formed by irradiating a prescribed actinic ray curable resin layer on a card substrate having, image quality, blurring, dimensionality, abrasion resistance, water resistance, and tape peeling are good (Examples 1 to 12, 14-17), and the image quality deteriorated when the thickness distribution was outside the specified range (Comparative Examples 5 and 7).

  In addition, when information is formed by irradiating a prescribed actinic ray curable resin layer on a card substrate having a card surface roughness Rmax of 30 μm or less, image quality, blurring, dimensionality, wear resistance, water resistance, tape peeling (Examples 1 to 17), but the card surface roughness Rmax was outside the specified range, the image quality decreased (Comparative Examples 4 and 6).

  Comparative Examples 3, 8, 9, and 10 are examples in which the prescribed actinic ray curable resin layer was not irradiated, and Comparative Example 3 had problems in image quality, fading, and water resistance. About Comparative Example 8, there was a problem in tape peelability. Comparative Examples 9 and 10 had problems with image quality and blurring.

  The present invention can be applied to an IC card incorporating a contact type or non-contact type IC module that stores personal information or the like that requires safety (security) such as forgery or alteration prevention.

It is a block diagram of an authentication card. It is the graph which measured the thickness of the authentication card in a grid pattern. It is the graph which extracted a part of measured value of an authentication card long side direction. It is the graph which extracted a part of measured value of an authentication card short side direction. FIG. 3 is a front view illustrating a configuration of a main part of the recording apparatus. It is an enlarged view of a hot stamp apparatus. It is a block diagram of an authentication card production apparatus. It is a top view of a card positioning mechanism. It is a block diagram of an authentication card production apparatus. It is a figure explaining creation of an authentication card. It is a figure explaining creation of an authentication card. It is a figure explaining creation of an authentication card. It is a figure explaining creation of an authentication card. It is a block diagram of the manufacturing apparatus of a card base material. It is a top view of the 1st sheet member. It is a perspective view of the 2nd sheet member. It is a top view of an IC module. It is a perspective view of a card punching machine. It is a block diagram of the manufacturing apparatus of a card base material.

Claims (12)

In an authentication card created by ejecting ink that is cured by actinic rays onto a card substrate with a recording head having at least one nozzle capable of selectively controlling the ejection of ink droplets,
On the card substrate in which the white portion chromaticity is 90 ≦ L * ≦ 98, −5.0 ≦ a * ≦ 3, −9 ≦ b * ≦ 2,
a) at least one compound selected from a fat-drying epoxy compound, a vinyl ether compound, and an oktacene compound as a photopolymerizable compound;
b) An authentication card, wherein information is formed by irradiating an actinic ray curable resin layer containing at least one compound selected from an onium compound, a sulfonium compound, a halide, and an iron allene complex by actinic ray irradiation. In a recording head having at least one nozzle capable of selectively controlling the ejection of ink droplets, in an authentication card created by ejecting ink that is cured by actinic rays on a card substrate,
The card thickness distribution H (mm) is measured in a certain direction, and the card thickness variation ΔH (mm) at intervals of 2 mm L (mm) has a thickness distribution satisfying (formula) ΔH / L ≦ 0.05. On the substrate
a) at least one compound selected from a fat-drying epoxy compound, a vinyl ether compound, and an oktacene compound as a photopolymerizable compound;
b) An authentication card, wherein information is formed by irradiating an actinic ray curable resin layer containing at least one compound selected from an onium compound, a sulfonium compound, a halide, and an iron allene complex by actinic ray irradiation. In an authentication card created by ejecting ink that is cured by actinic rays onto a card substrate with a recording head having at least one nozzle capable of selectively controlling the ejection of ink droplets,
On the card substrate having a card surface roughness Rmax of 30 μm or less,
a) at least one compound selected from a fat-drying epoxy compound, a vinyl ether compound, and an oktacene compound as a photopolymerizable compound;
b) An authentication card, wherein information is formed by irradiating an actinic ray curable resin layer containing at least one compound selected from an onium compound, a sulfonium compound, a halide, and an iron allene complex by actinic ray irradiation.   The authentication card according to any one of claims 1 to 3, wherein the image forming layer is protected by using a transparent ink having at least one transmittance of 90% or more of an ink made of actinic ray curable resin. .   The authentication card according to any one of claims 1 to 3, wherein a transfer foil having at least an actinic ray curable resin layer is transferred to protect the surface.   The authentication card according to claim 1, wherein a writable layer capable of writing is provided on a non-image surface.   The authentication card according to any one of claims 1 to 6, wherein any one or more of a face image, an address, a name, and a date of birth are described as the personal information.   The authentication card according to any one of claims 1 to 7, wherein a forgery / alteration prevention layer is provided either before or after the formation of the ink layer.   The anti-counterfeiting prevention layer is an image layer appropriately selected from at least one of a pattern, a bar code, a mat pattern, a fine pattern, a background pattern, a concavo-convex pattern, and a minute character pattern, a visible light absorbing color material, an ultraviolet absorber, The authentication card according to claim 8, wherein the authentication card is made of an infrared absorbing material, a fluorescent agent, beads, an optical change element, a pearl pigment, a scale pigment, and a metallic luster compound. In a recording head having at least one nozzle capable of selectively controlling ink droplet ejection, an image is formed by ejecting ink that is cured by actinic rays onto a card substrate.
a) a stocker unit for accumulating a plurality of card bases before recording information;
b) a recording head having at least one nozzle capable of controlling the ejection of ink droplets;
c) a positioning unit for positioning to supply the card substrate from the stocker unit;
d) a transport unit for transporting the supplied card substrate;
e) an actinic ray irradiation unit for irradiating an image formed on the card substrate;
f) An authentication card making apparatus characterized by having at least a stocker unit for collecting image-formed card bases.   The authentication card according to any one of claims 1 to 9, which is created by the authentication card creation device according to claim 10. An authentication card creating method, wherein the authentication card creating device according to claim 10 is used to create the authentication card according to any one of claims 1 to 1.