JP4962386B2 - Patch intermediate transfer recording medium and anti-counterfeit medium using the same - Google Patents

Description

  The present invention relates to a patch intermediate transfer recording medium, and more specifically, an image can be printed by an ink jet method that does not use an ink ribbon that leaves traces such as personal information. In addition to scratch resistance and solvent resistance after transfer, This invention relates to a patch intermediate transfer recording medium capable of transferring a patch having a fluorescent light emitting hologram layer having excellent heat resistance and light resistance, and having excellent design and security, and an anti-counterfeit medium using the same. It is.

  In the present specification, “ratio”, “part”, “%” and the like indicating the composition are based on mass unless otherwise specified, and the “/” mark indicates that they are integrally laminated. “PET” is an abbreviation, synonym, functional expression, common name, or industry term for “polyethylene terephthalate”, “extrusion coating” for “EC”, and “printing” for “printing”. “Hologram” includes “hologram and those having a light diffractive function such as a diffraction grating”.

(Main application) Using the patch intermediate transfer recording medium of the present invention, after printing an image by an ink jet method that does not use an ink ribbon in which traces of personal information or the like remain on the patch receiving layer, the patch is transferred to a transfer medium. The main uses of the transferred anti-counterfeiting media include ID cards such as employee cards, membership cards, and student cards, gift certificates, admission cards, passports, service points, and the right to pay a certain amount (called prepaid) It can be applied to media that proves qualifications.
However, an image can be printed by the inkjet method, and a hologram layer with excellent design and security can be transferred with good transferability. After transfer, it has excellent heat resistance and light resistance in addition to scratch resistance and solvent resistance. If it is a use which has fluorescence, it will not specifically limit.

(Background Art) Conventionally, a medium for the above-mentioned use, for example, a medium for certifying a right or qualification for which a certain amount of money has been paid (called prepaid) is increasing. Since the medium has a certain economic value and effect, individual information such as the validity period, section, name, and age is falsified, and it is constantly falsified, altered, and illegally used. It has been proposed to improve security. It is known to transfer a hologram to a medium using a hologram transfer foil having high security as well as excellent aesthetics and design. A hologram transfer foil is basically provided with a release layer or a release layer and a protective layer, a hologram forming layer, a hologram effect layer, and an adhesive layer on a base film, and faces a transfer area of a transfer material such as a card. Then, the base film is peeled off after the adhesion, and the hologram layer is transferred onto the surface of a transfer material such as a card. The hologram transfer foil is difficult to counterfeit or counterfeit the hologram layer, so that counterfeiting and counterfeiting of the article to be transferred is effectively prevented. And anti-tampering properties have been demanded.
In order to meet these demands, images of fluorescent latent images composed of fluorescent pigments that generate fluorescence in the visible region under infrared or ultraviolet irradiation are formed on the surface of cards etc. It is possible to do. However, the above-mentioned fluorescent pigment image can be easily rewritten, and identification cards and cash cards are frequently used, and a lot of frictional force is applied to the surface by a card reader. There is a problem that the layer easily peels off. As a method for forming fluorescence, a simple thermal transfer method is widely used because various images can be easily formed. The fluorescent image can be recorded on a transfer medium such as a card by a thermal head or a heating means such as a laser using a thermal transfer foil containing a fluorescent agent in the thermal transfer layer. Conventionally, fluorescent images have used fluorescent dyes or fluorescent brighteners, and have the disadvantage of lacking durability such as heat resistance, light resistance, and weather resistance.

On the other hand, personal information of the owner is displayed on cards and the like, but it is necessary to prevent leakage of this personal information and to have durability against external force during use. As a display method of personal information, printing (display) by a thermal transfer method is widely used. In these thermal transfer methods, various images are easily formed, and therefore, the thermal transfer method is used to create a printed material that requires a relatively small number of prints, for example, an ID card such as an identification card. Further, when a color image is preferable such as a face photograph, a large number of colored thermal transfer layers of, for example, yellow, magenta, and cyan (and black if necessary) are repeatedly provided in the surface sequence on a continuous base film. A thermal transfer method using a long thermal transfer film has been performed. There are two types of such thermal transfer films: a melt transfer type and a sublimation type thermal transfer film, both of which print using a dedicated ink ribbon. The missing portion of the discharged ink ribbon is personal information to be kept secret, and there is a risk that the personal information is easily known from the discarded ink ribbon.
In addition, there are intermediate transfer recording media that form an image by an ink jet method without using an ink ribbon. However, an image by an ink jet method is slow to dry, so the image forming speed is slow, the print is blurred, and the image is further formed. Since the subsequent drying is slow, there is also a problem in that it cannot be immediately transferred to the transfer target.
Therefore, personal information can be printed on the patch portion of the patch intermediate transfer recording medium without using an ink ribbon that leaves traces of personal information, etc., and when printing, the image does not blur, dries quickly, and the card Patch intermediate transfer recording media that can be easily transferred to a medium (transfer medium) such as the above, and in a medium after transfer (anti-counterfeit medium), the patch serves as a protective layer and is severely used repeatedly many times. Forgery prevention with a fluorescent light-emitting hologram that protects the surface of anti-counterfeiting media under various conditions of use, in addition to scratch resistance and solvent resistance, as well as excellent security and heat resistance and light resistance A medium is sought.

(Prior Art) Conventionally, a card in which a fluorescent dye or a fluorescent brightening agent is formed or transferred is known (for example, see Patent Documents 1 and 2). However, conventional fluorescent dyes or optical brighteners have the drawback of lacking durability such as heat resistance, light resistance and weather resistance.
In addition, the applicant of the present invention provides a release layer or a release layer and a protective layer, a hologram forming layer, a hologram effect layer and an adhesive layer on the base film, and the release layer or release layer. Disclosed is a hologram transfer foil characterized in that a fluorescent pigment printing layer containing a colorless or white fluorescent pigment is provided between a protective layer and a hologram forming layer or between the hologram effect layer and the adhesive layer. (For example, refer to Patent Document 3). However, conventional fluorescent pigments have problems such as lack of durability such as light resistance and weather resistance, and two layers of a hologram effect layer and a fluorescent pigment printing layer, which are complicated and expensive to manufacture. .
Further, as an identification mark that can be formed on various articles by a transfer foil or a label, an identification mark having a fluorescent light emitting layer containing an optically active rare earth complex, the rare earth complex having diastereoselectivity. Has a ligand. Since the fluorescent light-emitting layer containing the optically active rare earth complex emits circularly polarized fluorescence in a specific wavelength region, the authenticity determination may be performed by measuring the difference in the intensity of left and right circularly polarized light or the g value. An identification mark that can be used is known (see, for example, Patent Document 4). However, it is a transfer foil characterized in that a fluorescent light emitting layer (identification mark) containing an optically active rare earth complex and an adhesive layer are laminated in this order on a temporary support film, which is transferred to the surface of a medium. If it is used as the outermost surface and is repeatedly used many times, it has a defect that it lacks scratch resistance and solvent resistance and lacks durability.
Furthermore, the applicant has laminated a sheet base material provided with a resin layer and a transparent sheet provided with a hologram forming layer and a receiving layer, and a half-cut treatment is performed on the transparent sheet portion including the hologram forming layer and the receiving layer. An intermediate transfer recording medium that peels between the resin layer and the transparent sheet is disclosed (for example, see Patent Documents 5 to 6). However, there is a drawback that only the hologram has no fluorescent light emitting layer and lacks security.
Furthermore, there is known a card in which an image is formed on the image receiving layer by sublimation thermal transfer, melt thermal transfer, ink jet, or electrophotography, and is transferred onto a substrate by thermal transfer (see, for example, Patent Document 7). However, there is a problem that an image by ink jet is an image such as a character and does not have special security.
Furthermore, on one side of the support, a release layer, a first hologram forming layer having a hologram pattern, a transparent thin film layer, a second hologram forming layer having a hologram pattern different from the first hologram forming layer, In a hologram transfer foil in which a reflective thin film layer and an adhesive layer are sequentially laminated, a printing layer is provided so as to cover at least a part of the transparent thin film layer between the transparent thin film layer and the second hologram forming layer. A hologram transfer foil that is formed and at least a part of the printed layer is printed with fluorescent ink is known (for example, see Patent Document 8). However, the fluorescent ink is not an ink jet method, and it is a known printing method and cannot handle a small lot. Furthermore, there is a drawback that it is extremely difficult to print an image that is variable information on personal information or on demand.
Furthermore, the present applicant has laminated a sheet base material provided with a resin layer and a transparent sheet provided with a receiving layer and a hologram forming layer, and a half-cut treatment is performed on the transparent sheet portion including the receiving layer. The image is formed by forming a transfer image on the receiving layer of the intermediate transfer recording medium which is peeled between the resin layer and the transparent sheet, and re-transferring only the image-formed portion to the transfer target. A method is known (see, for example, Patent Document 9). However, the image is a transfer image by a thermal transfer method using a melt transfer or sublimation type thermal transfer ink ribbon, and there is a drawback that traces such as personal information remain on the residual ink ribbon, resulting in poor security.

Japanese Patent Application Laid-Open No. 3-159796 Japanese Patent Laid-Open No. 3-159795- JP 2006-1212 A JP 2005-111704 A JP 2002-274060 A JP 2004-284096 A Japanese Patent Laid-Open No. 10-244788 JP-A-7-199781 JP 2002-274060 A

  Accordingly, the present invention has been made to solve such problems. Its purpose is to print personal information on the patch part of the patch intermediate transfer recording medium without using an ink ribbon that leaves traces of personal information, etc., and when printing, the image does not bleed, dries quickly, and Provides a patch intermediate transfer recording medium that can be easily transferred to a medium such as a card (transfer object), and the patch is protected on a medium after transfer using the patch intermediate transfer recording medium (which becomes a forgery prevention medium). Even in harsh usage conditions such as repeated use multiple times, the surface of the anti-counterfeit medium is protected, and in addition to scratch resistance and solvent resistance, etc., it has excellent heat resistance and light resistance. An anti-counterfeit medium having an excellent hologram and excellent in security is provided.

In order to solve the above problems, the patch intermediate transfer recording medium according to the invention of claim 1 is (1) a transfer comprising a transparent substrate, a hologram layer, a reflective layer, and a receiving layer on one surface of the transparent substrate. And (2) a support material in which a peelable resin layer is provided on a support base material, the transfer portion of the transfer material is subjected to a half-cut treatment to form a patch, and the patch is the peelable resin layer surface of the support material In the patch intermediate transfer recording medium laminated to be peelable, the hologram layer includes an ionizing radiation curable resin and a fluorescent luminescent rare earth complex, and the absorption wavelength region of the ionizing radiation curable resin is the fluorescent luminescent rare earth. Unlike the absorption wavelength region of the complex, the receiving layer contains at least a cationic urethane resin, a cationic fixing agent, and a filler so that information can be printed on the receiving layer by an ink jet method. , It is obtained by.
An anti-counterfeit medium according to a second aspect of the present invention is the anti-counterfeit medium in which the patch of the patch intermediate transfer recording medium according to the first aspect is transferred to a transfer medium, and is printed on the receiving layer of the patch by an ink jet method. The information printing layer 103 is provided.

According to the first aspect of the present invention, the personal information can be printed on the patch portion of the patch intermediate transfer recording medium by the ink jet method without using the ink ribbon on which the trace of personal information or the like remains, and the image is printed when printing. Does not bleed, dries quickly, can be easily transferred to a medium such as a card (transfer object), has excellent security, has durability during use, that is, has a hard coat property, and can be used repeatedly many times In addition to the scratch resistance and solvent resistance for protecting the surface of the medium, there is provided a patch intermediate transfer recording medium having a fluorescent light emitting hologram having excellent heat resistance and light resistance.
According to the second aspect of the present invention, personal information is printed by an ink jet method, and the patch serves as a protective layer to protect the surface of the anti-counterfeit medium even under severe use conditions such as repeated use. Thus, an anti-counterfeit medium having excellent security with a fluorescent light-emitting hologram having excellent heat resistance and light resistance in addition to scratch resistance and solvent resistance is provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of a patch intermediate transfer recording medium showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view of an anti-counterfeit medium showing an embodiment of the present invention transferred using the patch intermediate transfer recording medium of the present invention.

  (Patch Intermediate Transfer Recording Medium) In the patch intermediate transfer recording medium 20 of the present invention, as shown in FIG. 1, the patch 21 is laminated on the surface of the peelable resin layer 33 of the support member 30 so as to be peelable. The patch 21 is a patch formed by half-cutting the transfer portion of the transfer material 10. The transfer material 10 includes (1) a transparent base material 11 and a hologram layer 15, a reflection layer 17, and a receiving layer 23 on one surface of the transparent base material 11, and the support material 30 is peeled off to (2) the support base material 31. A functional resin layer 33 is provided. The hologram layer 15 includes a fluorescent light-emitting rare earth complex.

  (Anti-Counterfeit Medium) As shown in FIG. 2, the anti-counterfeit medium 100 of the present invention has a patch-like shape by using the patch intermediate transfer recording medium 20 of the present invention and half-cutting the transfer portion of the transfer material 30. The formed patch 21 is peeled off from the support material 30 and transferred to the transfer target 101. The patch 21 includes a transparent substrate 11, a hologram layer 15 containing a fluorescent light-emitting rare earth complex, and a receiving layer 23, and an image is printed on the receiving layer 23 by an ink jet method.

  The patch intermediate transfer recording medium 20 can achieve the following effects. (1) When the patch 21 is transferred from the patch intermediate transfer recording medium 20 to the transfer target 101, the patch 21 is half-cut, so it is easily peeled off from the support material 30 and transferred with good transferability. be able to. (2) Although the conventional fluorescent light emitting agent has large crystal particles and could not be blended into the hologram layer 15, it can be easily and uniformly dispersed by using a rare earth complex having a molecular weight of about 1500. (3) Compared with a fluorescent layer containing a fluorescent dye or a luminescent brightening agent inferior in heat resistance and light resistance by including a fluorescent light-emitting rare earth complex excellent in heat resistance and light resistance in the hologram layer 15. Fluorescence emission having excellent heat resistance and light resistance can be obtained. (4) By including a fluorescent light-emitting rare earth complex having excellent heat resistance in the hologram layer 15, the fluorescent light-emitting agent is not deteriorated by heat at the time of shaping the hologram, and the fluorescent light-emitting property is maintained. (5) Further, by making the absorption wavelength region of the fluorescent light-emitting rare earth complex different from the absorption wavelength region of the ionizing radiation curable resin, the curing of the ionizing radiation curable resin of the hologram layer 15 can be achieved by fluorescence emission. Since the agent does not inhibit, it can be cured sufficiently. (6) The hologram layer 15 becomes a fluorescent light-emitting hologram, resulting in the expression of both hologram and fluorescent light emission. (7) When the fluorescent light emitting hologram layer 15 emits fluorescent light, it also emits light even at the contour of the emboss (hologram). Yes. Security is improved. (8) Since the receiving layer 23 contains at least a cationic urethane-based resin, a cationic fixing agent, and a filler, an image such as personal information can be printed by an ink jet method, and the image does not bleed when printed and is dried. Is early.

  Moreover, the forgery prevention medium 100 can have the following effects. (1) The patch 21 (consisting of the transparent base material 11, the hologram layer 15 and the receiving layer 23) is transferred to the anti-counterfeit medium 100, and the outermost surface of the anti-counterfeit medium 100 becomes the transparent base material 11 of the patch 21. Since the substrate 11 is once formed into a film with high strength, it has excellent durability such as scratch resistance and solvent resistance even after repeated use, and a protective layer made of a conventionally applied resin. Compared to the above, the surface of the medium can be strongly protected. The transparent substrate 11 is preferably a biaxially stretched film. (2) Since the information print layer 103 printed on the receiving layer 23 is an ink jet print, the image is different from a transfer image obtained by a thermal transfer method using a melt transfer or sublimation type thermal transfer ink ribbon. Since it is not used, there are no traces of personal information and the security is excellent. (3) Since the patch 21 including the hologram layer 15 is transferred to the anti-counterfeit medium 100, the medium has a hologram and a fluorescence emission property, and is more resistant to the security of the hologram and the conventional fluorescence layer. It exhibits both fluorescent and light-emitting effects that are remarkably superior in lightness and light resistance.

  (Transfer Material) The transfer material 10 includes a transparent base material 11, a hologram layer 15, a reflective layer 17, and a receiving layer 23 on one surface of the transparent base material 11.

  (Transparent Substrate) The transfer material 10 comprising the transparent substrate 11 / hologram layer 15 / reflective layer 17 / receiving layer 23 is transferred to the transfer target 101 with the portion cut by the half-cut processing as a patch 21. , Function as a protective layer. As the transparent base material 11, various materials can be applied depending on the use as long as the material has durability such as transparency, weather resistance, friction resistance, and chemical resistance. For example, polyester resins such as polyethylene terephthalate and polyethylene naphthalate, polyamide resins, vinyl resins such as polyvinyl chloride, acrylic resins, imide resins, engineering resins such as polyarylate, polycarbonate, cyclic polyolefin resins, cellophane Examples thereof include cellulosic films. The transparent substrate 11 may be a copolymer resin containing these resins as a main component, a mixture (including an alloy), or a laminate composed of a plurality of layers.

  The transparent substrate 11 may be a stretched or unstretched film, but a film stretched in a uniaxial direction or a biaxial direction is preferable for the purpose of improving strength. A thickness of about 2.5 to 50 μm is usually applicable, but 2.5 to 25 μm is preferable. Prior to coating, the transparent substrate 11 is subjected to easy adhesion treatment such as corona discharge treatment, plasma treatment, primer (also called an anchor coat, adhesion promoter, or easy adhesive) coating treatment, alkali treatment, etc. May be. Moreover, you may add additives, such as a filler, a plasticizer, a coloring agent, and an antistatic agent, as needed. A biaxially stretched polyethylene terephthalate film is preferably used because of its good heat resistance and mechanical strength.

  (Hologram layer) The hologram layer 15 may contain a fluorescent light-emitting rare earth complex, the binder resin may contain an ionizing radiation curable resin as a main component, and may contain additives such as a filler as required.

(Rare earth complex) A fluorescent light-emitting rare earth complex is an optically active rare earth complex that emits fluorescence, which means a rare earth complex having an optically active site, in which a ligand having an optically active site is coordinated. Or, one of the two stereoisomers (Δ-form, Λ-form) existing in the absolute configuration around the rare earth metal atom of the tetragonal prismatic coordination structure of the rare earth complex is excessively contained. The rare earth complex in the state of being. The rare earth complex having such a structure has excellent emission characteristics and a sharp emission spectrum with a narrow half-value width. In particular, rare earth complexes in which the rare earth ion Ln ³⁺ is any one of Eu ³⁺ , Tb ³⁺ , Yb ³⁺ , Nd ³⁺ , Er ³⁺ , Sm ³⁺ , Dy ³⁺ , and Ce ³⁺ are weakly excited. It is a strong light-emitting rare earth complex that emits strong light even with light, and is preferably used. For example, there are general formula (1), general formula (2), general formula (3), and general formula (4). The rare earth complex preferably contains a <—C _n F _{2n + 1} (n is an integer of 1 to 22)> group from the viewpoint of heat resistance and stability. Specific examples include Lumisys (registered trademark, total distributor: Central Techno Co., Ltd., manufacturer: Nissei Chemical Industry Co., Ltd.) R-600, G-900, YB-1200, and the like. Details are described in WO2005 / 044770, JP2006-249075A, and JP2005-97240A.

（式中、Ｄは重水素原子、ハロゲン原子又は水素原子を含まないＣ１〜Ｃ２２の脂肪族基を示す）

(Wherein D represents a C1-C22 aliphatic group containing no deuterium atom, halogen atom or hydrogen atom)

（式中、ＸはＣ−ＲまたはＮを表し、Ｒは水素原子または置換基を表す）

(Wherein X represents C—R or N, and R represents a hydrogen atom or a substituent)

  By using a rare earth complex having a high luminous efficiency, the proportion of the fluorescent light emitting rare earth complex contained in the ionizing radiation curable resin that is the binder resin is about 0.01 to 10%, preferably 0.1. ~ 5%. If it is less than this range, the intensity of the fluorescence emission is small, and if it exceeds this range, the intensity of the fluorescence emission is too high, resulting in a high cost.

  (Wavelength region) Further, as the ionizing radiation curable resin which is a binder resin, among the resin systems, there is no absorption or small absorption in the absorption wavelength region of the fluorescent luminescent rare earth complex and the fluorescent emission wavelength region. Is preferred. When absorption occurs in the absorption wavelength region of the fluorescent light-emitting rare earth complex, when the ionizing radiation curable resin is irradiated with ionizing radiation and reacted (cured) to form the fluorescent layer 15, the rare earth complex is ionizing radiation 1. Part of the water is absorbed, resulting in poor reaction (curing) and insufficient durability, or a large amount of irradiation is required, resulting in high cost. In this respect, an ionizing radiation curable resin system containing the urethane (meth) acrylate oligomer is preferable, and the resin system can be cured by irradiation in an ultraviolet region having a wavelength of 250 nm or less. In addition, when there is absorption in the fluorescence emission wavelength region of the fluorescent light-emitting rare earth complex, ionizing radiation is emitted when, for example, ultraviolet rays are irradiated to fluoresce the medium on which the fluorescent layer 15 / receiving layer 23 is transferred. The curable resin absorbs part of the ultraviolet rays, resulting in poor light emission and insufficient fluorescence brightness, or requiring a large amount of irradiation, resulting in an increase in size and cost due to the high output of the fluorescent light emitting device. It is. The absorption wavelength region of the ionizing radiation curable resin before curing and the ionizing radiation curable resin after curing are the same.

  The ionizing radiation curable resin is preferably (1) an isocyanate having three or more isocyanate groups in the molecule, and (2) at least one hydroxyl group and at least two (meth) acryloyloxy groups in the molecule. Preferably using an ionizing radiation curable resin containing a polyfunctional (meth) acrylate having, or (3) a urethane (meth) acrylate oligomer which is a reaction product of a polyhydric alcohol having at least two hydroxyl groups in the molecule. May contain polyethylene wax, applied, dried, and cured with ionizing radiation to form an ionizing radiation curable resin.

  The ionizing radiation curable resin containing the urethane (meth) acrylate oligomer (referred to herein as the ionizing radiation curable resin composition M) is a cured ionizing radiation curable resin containing the urethane (meth) acrylate oligomer. Examples thereof include photocurable resins disclosed in Japanese Patent Application Laid-Open No. 2001-329031. Specific examples include MHX405 varnish (made by The Inktec Co., Ltd., ionizing radiation curable resin product name) and Iupimer UV · V3031 (manufactured by Mitsubishi Chemical Co., Ltd., product name of ionizing radiation curable resin).

  (Hologram layer formation) The hologram layer 15 is formed by using the above-mentioned ionizing radiation curable resin, fluorescent light-emitting rare earth complex, filler, photopolymerization initiator, plasticizer, stabilizer, surfactant, etc. as necessary. In addition, it may be dispersed or dissolved in a solvent, applied by a known coating method such as roll coating, gravure coating, comma coating, die coating, and the like, dried and reacted (cured) with ionizing radiation after shaping. The thickness of the hologram layer 15 is usually about 1 to 10 μm, preferably 2 to 5 μm.

  By using a rare earth complex having a high luminous efficiency, the proportion of the fluorescent light emitting rare earth complex contained in the ionizing radiation curable resin that is the binder resin is about 0.01 to 10%, preferably 0.1. ~ 5%. If it is less than this range, the intensity of the fluorescence emission is small, and if it exceeds this range, the intensity of the fluorescence emission is too high, resulting in a high cost.

  (Hologram) In the transfer material 10 of the present invention, a light diffractive fine unevenness is formed on the surface of the hologram layer 15 on the receiving layer 23 side to form the hologram layer 15, and the reflective layer 17 is provided on the fine uneven surface. Thus, the high designability and anti-counterfeiting property of the hologram can be imparted.

  (Hologram) Next, predetermined fine unevenness (relief structure) such as a hologram that exhibits a light diffraction effect is formed on the surface of the hologram layer 15 and cured. A hologram is a recording of interference fringes due to the interference of light between object light and reference light in an uneven relief shape, such as a laser reproduction hologram such as a Fresnel hologram, a white light reproduction hologram such as a rainbow hologram, There are color holograms utilizing the above principle, computer generated holograms (CGH), holographic diffraction gratings and the like. The relief shape is a concavo-convex shape, and is not particularly limited, and may have a fine concavo-convex shape such as light diffusion, light scattering, light reflection, light diffraction, etc., such as Fourier transform or lenticular lens. , A light diffraction pattern, and a moth eye. Further, although it does not have a light diffraction function, it may be a hairline pattern, a mat pattern, a line pattern, an interference pattern, or the like that expresses a unique glitter.

  A relief shape is formed (also referred to as replication) on the surface of the hologram layer 15. Hologram shaping can be formed by a known method. For example, when recording diffraction gratings or interference fringes of holograms as reliefs of surface irregularities, a master on which the diffraction gratings or interference fringes are recorded in irregularities is pressed. The concave / convex pattern of the original can be duplicated by using it as a mold (referred to as a stamper) and by superimposing the original on the resin layer and heat-pressing both of them with an appropriate means such as a heating roll.

  Further, the hologram pattern formed on the hologram layer 15 may be single or plural. The hologram layer 15 is irradiated with ionizing radiation during or after embossing with a stamper to cure the ionizing radiation curable resin. The ionizing radiation curable resin becomes an ionizing radiation curable resin (fine irregularities = relief structure = hologram) when it is cured (reacted) by irradiation with ionizing radiation such as ultraviolet rays or electron beams after the relief is formed.

(Reflection layer) Since the reflection layer 17 is provided on the reflection layer 17 on the relief surface of the hologram layer 15 provided with a predetermined relief structure, the reflection reflection and / or diffraction effect is enhanced. If the rate is higher, it is not particularly limited. The reflective layer 17 may be a metallic glossy reflective layer such as a metal thin film by a vacuum thin film method or the like, or a transparent reflective layer, but the metallic glossy reflective layer is partially provided and the transparent reflective layer is formed on the transfer target. Even if the image is transferred to the surface of the image, it is preferable because the image can be observed. The transparent reflection layer has a substantially colorless and transparent hue, and its optical refractive index is different from that of the hologram layer. A hologram can be produced. For example, there are a thin film having a higher refractive index than the hologram layer 15 and a thin film having a lower refractive index. Examples of the former include ZnS, TiO ₂ , Al ₂ O ₃ , Sb ₂ S ₃ , SiO, SnO _2. ITO, etc., and examples of the latter include LiF, MgF ₂ , and AlF ₃ . Preferably, it is a metal oxide or nitride, specifically, Be, Mg, Ca, Cr, Mn, Cu, Ag, Al, Sn, In, Te, Fe, Co, Zn, Ge, Pb, Cd , Bi, Se, Ga, Rb, Sb, Pb, Ni, Sr, Ba, La, Ce, Au, and other oxides or nitrides, and the like can be exemplified by a mixture of two or more thereof. Also, a general light-reflective metal thin film such as aluminum can be used when it has a thickness of 200 mm or less. The transparent metal compound is formed on the relief surface of the hologram layer 15 by vacuum such as vapor deposition, sputtering, ion plating, and CVD so that the thickness of the relief layer of the hologram layer 15 is about 10 to 2000 nm, preferably 20 to 1000 nm. It may be provided by a thin film method or the like.

  (Receiving layer) A receiving layer 23 is provided on the surface of the transparent reflective layer 17 via a primer layer as necessary. The receiving layer 23 is the outermost surface of the patch intermediate transfer recording medium 10. An image is printed by an inkjet method. The receiving layer 23 may be a known one, but preferably contains a cationic urethane resin, a cationic fixing agent, and a filler.

Polycationic polyurethane resins with cationic groups, polytetramethylene ether glycol polyurethane, polyester ether polyurethane, polybutylene adipate polyurethane, polymethylpentane adipate polyurethane, polynonanediol adipate / polyoctane adipate Polyurethane resins such as polyurethane and polymethylpentane adipate polyurethane, preferably self-emulsifying or aqueous, and a reaction product of a polycarbonate or polyester polyol having a cationic hydrophilic group and an aliphatic isocyanate. Examples of cationic groups include primary to tertiary amines or quaternary ammonium bases.
Examples of the cationic fixing agent include dye fixing agents such as polyamine derivatives and quaternary ammonium salts.
As the filler, fine silica or wax such as silica, alumina, calcium carbonate, plastic pigment, or the like, which is included in an amount that improves the foil cutting property and does not impair the transparency, is preferable.

  The ratio of the cationic urethane-based resin, the cationic fixing agent, and the microsilica is cationic urethane-based resin: cationic fixing agent: microsilica = 100: 5 to 20: 1-10 on a mass basis. If the content of the cationic fixing agent is less than the above range, the fixing property is poor, and if it exceeds the above range, it elutes during washing and lowers the fastness. If the content of microsilica is less than the above range, the ink fixing property and foil sharpness are poor, and if it exceeds the above range, the transparency is lowered and the image becomes difficult to see.

  Dissolve or disperse the cationic urethane resin, cationic fixing agent and filler in a solvent, add an appropriate additive, apply and dry by a known roll coating, gravure coating, comma coating, etc. The receiving layer 23 may be 1 to 30 μm.

  (Fixability) The conventional receiving layer is mainly composed of a water-soluble resin such as polyvinyl alcohol, and its water resistance is remarkably poor. Also, a porous filler is used, or a good solvent is used as a solvent for the receiving layer coating solution. A poor solvent was used to cause phase separation and gelation during drying to give a porous network structure. However, there was a problem that the image was not sufficiently fixed and the image became light during washing. . According to the receiving layer 23 used in the present invention, the information printing layer 103 printed by the ink jet method has high image quality and good fixability, and also improves the fastness to washing. Although coexistence of fixability and fastness to washing is not clear, the inclusion of a cationic urethane resin, a cationic fixing agent, and a filler makes the surface of the coating film fine irregularities, and the coating itself aggregates Since the state is not very dense but rather rough, the permeability and adhesion of the image components are improved, and the dyes that make up the image react with the cationic urethane resin and the cationic fixing agent to insolubilize. In order to do so. The information printing layer 103 in the anti-counterfeit medium 100 of the present invention is sandwiched between the transfer material 10 and the transfer target 101, but the cross section is exposed and is excellent in water resistance due to water immersion from the cross section.

  (Support Material) The support material 30 is provided with a peelable resin layer 33 on a support base material 31.

  (Supporting base material) The supporting base material 31 is not particularly limited. For example, condenser paper, glassine paper, sulfuric acid paper, high-size paper, synthetic paper (polyolefin-based, polystyrene-based), high-quality paper, coated paper , Synthetic resin or emulsion-impregnated paper, polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyamide resins, vinyl resins such as polyvinyl chloride, acrylic resins, imide resins, polyarylate, etc. Examples include engineering resins, polycarbonates, cyclic polyolefin resins, and cellulose films such as cellophane. When the peelable resin layer 33 described later is provided on the support base 31, the surface of the support base 31 may be subjected to corona discharge treatment or a primer layer may be provided in order to improve adhesion.

  The support material 30 preferably has a thickness of 10 μm to 100 μm. If the sheet substrate is too thin, the so-called stiffness of the obtained patch intermediate transfer recording medium 20 is lost, and the support medium 30 cannot be transported by a thermal transfer printer, or the patch intermediate transfer recording medium 20 Curling and wrinkles may occur. On the other hand, if the support material 30 is too thick, the resulting patch intermediate transfer recording medium 20 becomes too thick, and the force to drive and drive the thermal transfer printer becomes too large, causing the thermal transfer printer to fail or not be transported normally. To do.

  (Peelable resin layer) The peelable resin layer 33 is formed of a pressure-sensitive adhesive layer, a simple adhesive layer, or an extrusion coating (EC) layer.

The pressure-sensitive adhesive layer is a conventionally known solvent-based or water-based pressure-sensitive adhesive, such as vinyl acetate resin, acrylic resin, vinyl acetate-acrylic copolymer, vinyl acetate-vinyl chloride copolymer, ethylene-vinyl acetate copolymer. Examples thereof include rubber resins such as coalescence, polyurethane resin, natural rubber, and chloroprene rubber. The coating amount of the pressure-sensitive adhesive layer is generally about 8 to 30 g / m ² (solid content), and is applied and dried by a conventionally known method such as gravure coating, roll coating, comma coating, and the like. To form an adhesive layer. Further, the adhesive strength of the pressure-sensitive adhesive layer is the peel strength between the transparent substrate 11 and the pressure-sensitive adhesive layer, and is desirably in the range of about 5 to 1,000 g in a 180 ° peeling method in accordance with JIS Z0237. It is preferable to select and use the kind of adhesive and the coating amount as described above so that the peel strength is within the above range when the adhesive layer is formed on the support substrate 31. Moreover, in order to provide an adhesive layer on the support base material 31 and to laminate the transparent base material 11 and the adhesive layer, methods such as dry lamination and hot melt lamination of the adhesive layer can be employed.

  The simple adhesive layer uses styrene-butadiene copolymer rubber (SBR), acrylonitrile-butadiene copolymer rubber (NBR), latex of acrylic resins such as polyacrylic acid esters, rubber resins, waxes and mixtures thereof. Then, it may be formed on the support substrate 31 by a conventionally known coating method, and the transparent substrate 11 and the simple adhesive layer may be laminated by dry lamination while heating. And the simple adhesive layer after peeling the transparent base material 11 and the support base material 31 falls in adhesiveness, and the transparent base material 11 and the support base material 31 cannot be bonded together again. When such a simple adhesive layer is used, a primer layer may be provided between the support base 31 and the simple adhesive layer.

  Further, as the peelable resin layer 33, an EC layer may be provided on the support base 31. The thermoplastic resin forming the EC layer does not essentially adhere to the transparent substrate 11 and is not particularly limited as long as the resin has EC processing characteristics. On the other hand, a polyolefin-based resin having no essential adhesiveness and excellent workability is particularly preferable. Specifically, LDPE, MDPE, HDPE, PP resin, etc. can be used. Using a mat roll as the cooling roll for EC processing of these resins, the mat surface is transferred to the surface of the EC layer to make the irregular shape opaque, and the polyolefin resin is calcium carbonate, titanium oxide, etc. The white pigment may be kneaded and made opaque. The EC layer may be a single layer or a plurality of layers. The peel strength from the transparent substrate 11 can be adjusted by the processing temperature and the resin type during EC processing. In this way, the EC layer is formed on the support substrate 31 simultaneously with EC processing, and the support substrate 31 and the transparent substrate 11 may be laminated via the EC layer by so-called EC lamination.

  (Heat resistant slipping layer) In the patch intermediate transfer recording medium 20, a heat resistant slipping layer may be provided on the opposite surface of the support base 31 from the peelable resin layer 33 as required. Since retransfer to the transfer target 101 using the patch intermediate transfer recording medium 20 is performed by a thermal transfer printer such as a thermal head or a heat roll, a heat resistant slipping layer is provided to prevent adverse effects such as sticking and wrinkles due to the heat. May be. The resin for forming the heat-resistant slipping layer may be any conventionally known resin such as polyvinyl butyral resin, polyvinyl acetoacetal resin, acrylic resin, cellulose resin, aromatic polyamide resin, polyimide resin, polycarbonate resin, etc. Is mentioned.

  The slipperiness-imparting agent that is added to or overcoated the heat-resistant slipping layer is, for example, a layer composed of a polyalcohol polymer compound, a polyisocyanate compound, and a phosphate ester compound, and a filler may be further added. preferable. The heat resistant slipping layer is prepared by dissolving or dispersing the above-described resin, slipperiness-imparting agent, and filler with an appropriate solvent, and, for example, gravure printing or screen printing on the back surface of the support substrate 31. It may be formed by applying and drying with the like.

  (Patch) The patch intermediate transfer recording medium 20 has a patch 21 laminated on the surface of a support material 30 in a peelable manner. The patch 21 has a patch shape by half-cutting the transfer portion of the transfer material 10 composed of the transparent base material 11 / hologram layer 15 / reflection layer 17 / receptive layer 23, and comprises the support base material 31 / peelable resin layer 33. It is laminated on the surface of the support material 30 so as to be peelable.

  (Half cut) As a half-cut treatment method, a method of inserting the patch intermediate transfer recording medium 20 in a stacked state before cutting between the upper die attached with the cutter blade and the pedestal and moving the upper die up and down, There is no particular limitation as long as it is a method capable of half-cutting, such as a cylinder-type rotary cutter method or a heat treatment method using laser processing means. It is not necessary to remove the patch 21 portion and the other portions, but as shown in the cross section of the patch intermediate transfer recording medium 20 shown in FIG. It is preferable to remove them (the person skilled in the art will refer to scrap removal). When the patch 21 is transferred to the transfer target, the transparent substrate 11 is not cut at the half-cut portion and can be transferred reliably.

  In general, half-cutting is performed by continuously cutting around the patch 21 in units of one round, and by partially providing uncut (no cut) parts such as four corners or perforated parts. It is possible to prevent troubles in which the half-cut portion is peeled off during handling such as transporting a thermal transfer printer. In addition, at least one part of the support material 30 is not cut and is made continuous. If the cutting depth is too deep in the half-cut processing, the support base material 31 is cut, and the printer is cut at the half-cut processing section during printer conveyance, which easily causes a conveyance trouble.

  Although it does not specifically limit as a shape of the patch 21, For example, a rectangle, an ellipse, a round shape, a donut shape etc. can be illustrated. The half-cut patch 21 portion may be smaller than the entire size of the transfer target body, and the patch 21 portion may be partially removed from the transfer body. Further, the entire width of the patch intermediate transfer recording medium 20 may be wider than the width of the surface to which the transfer target is transferred.

  (Patch Intermediate Transfer Recording Medium) The patch intermediate transfer recording medium 20 of the present invention has a transparent substrate 11 / hologram layer 15 / reflective layer 17 / receptor on the surface of a support material 30 comprising a support substrate 31 / peelable resin layer 33. A patch 21 obtained by half-cutting the transfer portion of the transfer material 10 made of the layer 23 is detachably stacked.

  (Anti-Counterfeit Medium) As shown in FIG. 2, the anti-counterfeit medium 100 of the present invention is patch-shaped by half-cutting the transfer portion of the transfer material 30 using the patch intermediate transfer recording medium 20 of the present invention. The patch 21 is peeled off from the support material 30 and transferred to the transfer target 101. The patch 21 includes a transparent substrate 11, a hologram layer 15 containing a fluorescent light-emitting rare earth complex, and a receiving layer 23. An information printing layer 103 is printed on the receiving layer 23 by an inkjet method.

  (Transfer method) As a transfer method for transferring to a transfer object, a known transfer method may be used. For example, hot stamping by hot stamping (foil stamping), transfer by a hot roll, thermal printer using a thermal head (thermal printing head). A known method such as a thermal transfer printer can be applied. Further, it may be transferred by heating in accordance with the shape of the patch 21.

  (Transfer To be Transferred) The transfer target 101 is not particularly limited, for example, natural fiber paper, coated paper, tracing paper, plastic film that is not deformed by heat during transfer, glass, metal, ceramics, wood, cloth, etc. Any one of them may be used, and it may be appropriately selected depending on the application. Further, at least a part of the medium of the transfer target 101 may be subjected to image, coloring, printing, or other decoration.

  (Information Print Layer) The image on the receiving layer 23 is not particularly limited, but images such as letters, numbers, and facial photographs are formed. As an image forming method, an ink jet method is used instead of a heat melting transfer method or a heat sublimation transfer method in which an ink ribbon residue remains. Since the receiving layer 23 contains at least a cationic urethane-based resin, a cationic fixing agent, and a filler, an image does not bleed even when printed by an ink jet method, and drying is fast.

  An information printing layer 103 to be an image may be printed on the receiving layer 23 of the patch intermediate transfer recording medium 20 by an inkjet printer, and the patch 21 including the information printing layer 103 may be subsequently transferred by an in-line method in the same planter. Since printing and transfer can be processed in one run, it is extremely efficient. The information printing layer 103 lacks durability, but the anti-counterfeit medium 100 having excellent security with a fluorescent light-emitting hologram having an image protected by the patch 21 and excellent in various durability, and excellent in heat resistance and light resistance. It becomes. In this way, the anti-counterfeit medium 100 using the patch intermediate transfer recording medium 20 forms a highly durable patch (the transparent base material 11 serves as a protective layer) on the information printing layer 103, and is subjected to severe use conditions. The thermal transfer image is excellent in various durability, and the patch can be easily transferred to the transfer target 101. The transferred medium is excellent in security and durable in use. Even with repeated use, in addition to scratch resistance and solvent resistance for protecting the surface of the medium, it has a fluorescent light-emitting hologram having excellent heat resistance and light resistance.

  (Durability) Since it can protect the surface of the medium and protect it from mechanical and chemical damage over a long period of time even after repeated use, it can be used for gas station cards and construction site cards used in extremely harsh environments, and It can also be suitably used for an entrance / exit card that has no expiration date or that repeatedly enters and exits many security-controlled rooms such as entrance / exit cards, point cards, and financial institutions.

  In addition, a fluorescent light-emitting hologram of the hologram layer 15 is formed, and design and security are exhibited. Furthermore, the fluorescence of the hologram layer 15 is emitted by a fluorescent light-emitting rare earth complex, and is excellent in heat resistance and light resistance. The fluorescence of the hologram layer 15 is not observable with normal visible light, and preferably emits visible light upon irradiation with light of a specific wavelength, and the light source preferably has a wavelength in the ultraviolet region, and an ultraviolet LED, black light, xenon lamp, Examples thereof include a short wavelength semiconductor laser.

  The heat resistance of the fluorescent light-emitting rare earth complex used for the hologram layer 15 was resistant to about 250 ° C., and even when the hologram layer 15 was left in a 200 ° C. environment for 1 hour, there was no significant change in emission luminance. In addition, the weather resistance test measured according to JIS-B-7753 (Sunshine carbon arc lamp type light resistance and weather resistance tester) compares the color change of the printed matter after irradiation for 500 hours with that before irradiation. As a result of visual evaluation, there was no significant change even after 500 hours. In this way, the foil can be easily transferred onto a medium such as a card (transfer object), and the transferred medium has excellent security and durability during use, and is repeated many times. Even in use, in addition to the scratch resistance and solvent resistance to protect the surface of the medium, it has a fluorescent light-emitting hologram having excellent heat resistance and light resistance.

  EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further in detail, it is not limited to this. In addition, except a solvent, each composition of each layer is a mass part of solid content conversion.

Example 1 Using a PET film having a thickness of 25 μm as the transparent substrate 11, the following hologram layer composition is dried on one surface of the substrate 11 with a gravure reverse coater so that the thickness after drying is 2 μm. And then dried at 100 ° C.
・ <Hologram layer composition>
MHX405 varnish (made by The Inktec Co., Ltd., ionizing radiation curable resin, trade name)
25 parts Methacrylate oligomer (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name: Purple light 6630B) 5 parts reactive silicone (manufactured by Shin-Etsu Chemical Co., Ltd., trade name: X-22-2445) 0.15 parts Lumisys R-600 (manufactured by Central Techno Co., Ltd., Red-emitting rare earth complex trade name)
0.3 parts Photopolymerization initiator (product name, Irgacure 184, manufactured by Ciba) 0.9 parts Solvent (ethyl acetate: methyl isobutyl ketone = 1: 1) 70 parts Next, diffraction onto the layer surface by two-beam interference method A press die with a quasi-continuous pattern duplicated from the lattice by the 2P method is attached to the embossing roller of the duplicating machine, and heat-pressed (embossed) with the opposing roller to form a relief with a fine uneven pattern. I let you. Immediately after the shaping, the hologram layer 15 was formed by irradiating and curing with ultraviolet rays using a high-pressure mercury lamp.
Titanium oxide with a thickness of 50 nm was formed on the relief surface of the hologram layer 15 by a vacuum deposition method to form a transparent reflective layer 17.
The following primer layer composition was applied to the surface of the transparent reflective layer 17 with a gravure coater so that the coating amount after drying was 0.5 μm and dried at 100 ° C. The layer composition was coated with a gravure coater so that the coating amount after drying was 1 μm, and dried at 100 ° C. to form a receiving layer 23, transparent substrate 11 / release layer 13 / hologram layer 15 / A transfer material 10 having a layer structure of transparent reflective layer 17 / primer layer / receiving layer 23 was obtained.
・ <Primer layer composition working solution>
Polyester resin 20 parts Microsilica (average particle diameter 0.5 μ) 1 part Solvent (toluene: methyl ethyl ketone = 1: 1) 40 parts <Receptive layer composition>
Quaternary ammonium salt type polycarbonate-based polyurethane 20 parts Dunfix 505RE (manufactured by Nitto Boseki Co., Ltd .; polycationic fixative agent) 2 parts Microsilica (average particle size 0.5 μm) 1 part Solvent (water) 80 parts Separately, support A PET film having a thickness of 38 μm is used as 31, and the support 31 and the previously produced transfer material 10 are laminated. The following peelable resin layer composition is applied to the surface of the support 31 so that the coating amount after drying is 3 μm, dried at 100 ° C., and then the surface of the transparent substrate 11 of the transfer material 10 is pressurized. A laminate was obtained by the dry lamination method.
・ <Peelable resin layer composition (simple adhesive layer type)>
Acrylic resin latex (manufactured by Nippon Zeon Co., Ltd., LX874) 30 parts Solvent (water: isopropyl alcohol = 1: 1) 70 parts Rectangle cutter blade with rounded corners on transfer material 10 part for the above laminate The intermediate transfer recording medium 20 of Example 1 having a continuous winding shape in which patches are peeled and laminated is obtained by performing half-cut processing by a press method of an upper mold and a pedestal to which a patch is attached, and removing scraps. .

  (Example 2) Instead of Lumisis R-600 in the hologram layer composition, Lumisis G-900 (manufactured by Central Techno Co., Ltd., trade name of green light-emitting rare earth complex) was used in the same manner as in Example 1 Thus, the patch intermediate transfer recording medium 20 of Example 2 was obtained.

(Example 3) Instead of the hologram layer 15, the following hard coat layer composition, red light emitting hologram layer composition, green light emitting hologram layer composition, and blue light emitting hologram layer composition were used. .
First, using a transparent hard coat layer composition, the coating thickness after drying was 6 μm with a gravure reverse coater and dried at 100 ° C. to form a hard coat layer.
Using the red light-emitting hologram layer composition, the green light-emitting hologram layer composition, and the blue light-emitting hologram layer composition on the hard coat layer surface, a face photograph is printed by the gravure printing method, and then the layer surface is applied. A two-beam interferometry hologram of a three-dimensional company emblem is reproduced by a 2P method (relief for reproducing a three-dimensional company emblem image), and a hologram mark is provided for each of the patterns to form a pair, and the pair is reproduced. A press mold with multiple patterns arranged in the flow direction is attached to the embossing roller of the duplicating machine and heated with an opposing roller (embossing) to form a relief with a fine uneven pattern. It was. Immediately after the shaping, the hologram layer 15 was formed by irradiating and curing with ultraviolet rays using a high-pressure mercury lamp. Otherwise in the same manner as in Example 1, the patch intermediate transfer recording medium 20 of Example 3 was obtained.
・ <Hard coat layer composition>
MHX405 varnish (supra) 25 parts Methacrylate oligomer (made by Nippon Synthetic Chemical Co., Ltd., trade name Purple Light 6630B) 5 parts Photopolymerization initiator (Ciba, trade name Irgacure 907) 0.9 parts Solvent (ethyl acetate: methyl isobutyl Ketone = 1: 1) 70 parts <Red luminescent hologram layer composition>
MHX405 varnish (supra) 25 parts methacrylate oligomer (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name: Murasaki 6630B) 5 parts Lumisis R-600 (manufactured by Central Techno Co., Ltd., trade name of red-emitting rare earth complex)
0.3 part Photopolymerization initiator (trade name Irgacure 907, manufactured by Ciba) 0.9 part Solvent (ethyl acetate: methyl isobutyl ketone = 1: 1) 70 parts <Green-emitting hologram layer composition>
MHX405 varnish (supra) 25 parts methacrylate oligomer (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name: Purple light 6630B) 5 parts Lumisys G-900 (manufactured by Central Techno Co., Ltd., trade name of green light emitting rare earth complex)
0.3 part Photopolymerization initiator (Ciba, trade name Irgacure 907) 0.9 part Solvent (ethyl acetate: methyl isobutyl ketone = 1: 1) 70 parts <Blue light emitting hologram layer composition>
MHX405 varnish (supra) 25 parts methacrylate oligomer (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name Murasaki 6630B) 5 parts Lumisis YB-1200 (manufactured by Central Techno Co., Ltd., trade name of blue-emitting rare earth complex)
0.3 part Photopolymerization initiator (Ciba, trade name Irgacure 907) 0.9 part Solvent (ethyl acetate: methyl isobutyl ketone = 1: 1) 70 parts

Comparative Example 1 A patch intermediate transfer recording medium 20 of Comparative Example 1 was obtained in the same manner as in Example 1 except that the following composition was used as the hologram layer composition of the hologram layer 15.
・ <Hologram layer composition>
MHX405 varnish (made by The Inktec Co., Ltd., ionizing radiation curable resin, trade name)
25 parts methacrylate oligomer (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name: Purple light 6630B) 5 parts reactive silicone (trade name: X-22-2445, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.15 parts fluorescent whitening agent 0.3 parts photopolymerization Initiator (trade name, Irgacure 184, manufactured by Ciba) 0.9 parts Solvent (ethyl acetate: methyl isobutyl ketone = 1: 1) 70 parts

  (Examples 4 to 6, Comparative Example 2) Using the 600 dpi color ink jet printer on each receiving layer 23 surface of the patch intermediate transfer recording medium 20 of Examples and Comparative Examples, images of company name, name and face photograph Was printed. Next, a credit card specification card made of polyvinyl chloride is used as the transfer target 101 on the surface of the receiving layer 23 on which the image is formed, and is overlapped with a card printer HDP820 manufactured by FARGO. After transferring, the support material 30 was peeled off and gradually removed to obtain the forgery prevention medium 100 of Examples 4 to 6 and Comparative Example 2.

  (Evaluation test) Evaluation was carried out by transferring to a transfer material and evaluating the transferability, the hardness of the surface after transfer, the scratch property, and the light resistance of the fluorescent layer.

(Evaluation result) The hologram layers before curing in Examples 1 to 3 were all in a finger dry state and could be wound up, and the subsequent steps could be rolled to roll. The surface of the hologram layer after curing with ultraviolet rays was measured with a pencil hardness test in accordance with JIS-K-5400. It has a hardness of 2H or more, and the hologram layer contains a fluorescent light-emitting rare earth complex. In addition, the absorption wavelength of the fluorescent light-emitting agent did not inhibit the curing of the ionizing radiation curable resin, indicating that it could be cured sufficiently.
The patch intermediate transfer recording media 20 of Examples 1 to 3 and Comparative Example 1 had good releasability during transfer and could be transferred normally. The images of the company name, name, and face photograph in the inkjet method of the anti-counterfeit medium 100 of Examples 4 to 6 were normally printed without bleeding.
Regarding the light resistance, JIS-B-7773 (Sunshine Carbon Arc) was used using the patch intermediate transfer recording medium 20 of Examples 1 to 3 and Comparative Example 1, and the anti-counterfeit medium 100 of Examples 4 to 6 and Comparative Example 2. Measurement was performed according to a light-type light resistance and weather resistance tester), and the color change of the fluorescent image after the light resistance test for 500 hours was visually evaluated in comparison with that before irradiation. When the patch intermediate transfer recording medium 20 of Examples 1 to 3 and the anti-counterfeit medium 100 of Examples 4 to 6 after 500 hours of light resistance test were irradiated with ultraviolet light with a black light having a wavelength of 365 nm, a significant change from before the light resistance test was performed. There was no good fluorescence emission, the outline of the hologram image was visible, and the light resistance was good. This is the light resistance obtained by limiting the material of the fluorescent light-emitting agent to be included in the hologram layer to the rare earth complex, and it was possible to improve the design and security.
However, the patch intermediate transfer recording medium of Comparative Example 1 after 500 hours of light resistance test and the anti-counterfeit medium of Comparative Example 2 are compared with the fluorescence image before the light resistance test when irradiated with ultraviolet light with a wavelength of 365 nm. The fluorescent whitening agent in the fluorescent layer was significantly deteriorated and was poor. Moreover, the outline of the hologram image was not recognized.

1 is a cross-sectional view of a patch intermediate transfer recording medium showing one embodiment of the present invention. It is sectional drawing of the forgery prevention medium which shows one Example of this invention transferred using the patch intermediate transfer recording medium of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Transfer material 11: Base material 15: Hologram layer 17: Reflection layer 20: Patch intermediate transfer recording medium 21: Patch 23: Receiving layer 30: Support material 31: Support base material 33: Peeling resin layer 100: Forgery prevention medium 101: Transfer object 103: Information printing layer

Claims (2)

(1) a transparent base material, a transfer material comprising a hologram layer, a reflective layer and a receiving layer on one surface of the transparent base material, and (2) a support material provided with a peelable resin layer on the support base material, In the patch intermediate transfer recording medium in which the transfer portion of the transfer material is subjected to a half-cut treatment to form a patch, and the patch is laminated to be peelable on the surface of the release resin layer of the support material, the hologram layer is an ionizing radiation curable resin And an emission wavelength region of the ionizing radiation curable resin are different from an absorption wavelength region of the fluorescence emission rare earth complex, and the receiving layer is at least a cationic urethane resin, a cationic fixing agent And a filler, and a patch intermediate transfer recording medium characterized in that information can be printed on the receiving layer by an ink jet method. The counterfeit prevention medium in which the patch of the patch intermediate transfer recording medium according to claim 1 is transferred to a transfer medium, the counterfeiting medium having an information printing layer 103 printed by an inkjet method on a receiving layer of the patch Prevention medium.

Images