JP5083607B2 - Intermediate transfer recording medium and transferred object - Google Patents

Description

  The present invention relates to an intermediate transfer recording medium and a transferred object to be transferred, and more specifically, when an image is printed on an intermediate transfer recording medium without using an ink ribbon in which traces such as personal information remain. When the image is transferred to many transfer objects using the intermediate transfer recording medium, it can be transferred to various transfer objects with good adhesiveness, and the foil is cut and efficiently. The present invention relates to an intermediate transfer recording medium that can be transferred and has excellent durability such as scratch resistance and solvent resistance after transfer, and a transferred object to be transferred.

  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 “polyethylene terephthalate”, “UV” is “ultraviolet”, and “ionizing radiation curable resin” is a generic term for “uncured ionizing radiation curable resin and cured ionizing radiation curable resin”. Abbreviation, functional expression, common name, or industry term.

  (Main application) As the main application of the transferred material (medium) in which the hard coat layer (or hologram layer and transparent reflective layer) and the image are transferred to the transferred object using the intermediate transfer recording medium of the present invention, For example, banknotes, stock certificates, securities, certificates, gift certificates, checks, bills, admission tickets, passbooks, gift certificates, boarding tickets, car horse tickets, stamps, stamps, appreciation tickets, admission tickets, passports, tickets, etc. Cards such as cash cards, credit cards, ID cards, prepaid cards, members cards, IC cards, optical cards, greeting cards, postcards, business cards, driver's licenses, passports, etc. Packaging materials such as cases, soft packaging materials, bags, cosmetics, watches, lighters and other branded accessories, envelopes, tags, bookmarks, calendars, posters, bread Let, name plates, stationery such as report paper, a building material, panel, emblem, key, cloth, clothing, footwear, radio, television, calculators, and devices such as OA equipment. However, the application is not particularly limited as long as the application can print an image and durability such as abrasion resistance and solvent resistance is required.

(Background Art) Conventionally, since the vouchers, cards, and various certificates have qualifications and certain economic values and effects, the owner's personal information is displayed. In addition, durability against external force during use is required. As a method for displaying 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 thermal transfer films: a melt transfer type and a sublimation type thermal transfer film, but since tampering is performed using a dedicated ink ribbon, the ink ribbon with the missing part is discharged and the ink ribbon is discharged. 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.
Also, when creating ID cards such as identification cards with the above-mentioned thermal transfer film, it is easy to form images such as letters and numbers in the case of a melt transfer type thermal transfer film, but these images are durable. There is a drawback that the properties, particularly the friction resistance, are inferior. On the other hand, in the case of a sublimation transfer type thermal transfer film, a gradation image such as a face photograph can be formed, but unlike a normal printing ink, the formed image has no vehicle, so There exists a problem that it is inferior to durability, such as a weather resistance and friction resistance. As a method for solving the above problem, after an image is formed, a protective layer (corresponding to the hard coat layer of the present invention) such as a transparent resin layer or a cured resin layer is further transferred onto the surface of the image. There is. However, since the image transfer and the protective layer transfer are performed twice, it is complicated and inefficient.
Therefore, there are intermediate transfer recording media that do not use an ink ribbon and form an image by an ink jet method. However, an image by an ink jet method has a slow drying time, resulting in a slow image formation speed, blurring of a print, and further image formation. Since the subsequent drying is slow, there is also a problem in that it cannot be immediately transferred to the transfer target.
Furthermore, since the ink jet receiving layer of the intermediate transfer recording medium for forming an image by the ink jet method requires a thick layer to some extent, when the intermediate transfer recording medium on which the image is formed is transferred to the final transfer target. In addition, the foil breakage is remarkably poor and transferability is poor.
Furthermore, the ink jet receiving layer of the intermediate transfer recording medium for forming an image by the ink jet method also serves as an adhesive layer when transferring to the transfer target, so that depending on the type of the transfer target, the adhesion at the time of transfer may be improved. Inferior, the material of the receiving layer must be changed depending on the type of the transfer object, and conversely, there is a disadvantage that the material of the transfer object is limited.
Therefore, the intermediate transfer recording medium does not use an ink ribbon that leaves traces of personal information or the like. When an image is printed on the intermediate transfer recording medium, the image does not bleed and dries quickly, and the intermediate transfer recording medium is used. When transferring an image to a transfer object, there are few material restrictions on the transfer object, transfer can be performed with good adhesion, and the foil can be transferred efficiently with good tear resistance. There is a demand for durability such as solvent resistance.

(Prior Art) Conventionally, an intermediate transfer recording medium in which a receiving layer is provided on a substrate in a detachable manner, using a thermal transfer sheet having a dye layer or a heat-meltable ink layer in the receiving layer, such as dyes and pigments A method is known in which an image is formed by transferring a colorant, and then an intermediate transfer recording medium is heated to transfer a receiving layer onto a transfer target (see, for example, Patent Document 1). However, since a thermal transfer sheet (corresponding to the ink ribbon of the present invention) having a dye layer or a heat-meltable ink layer is used as the receiving layer, the ink ribbon having a portion that has been lost after forming an image is discharged and removed. There is a problem that personal information that is to be kept secret is known from the discarded ink ribbon.
Further, the present applicant superimposes and heats the thermal transfer layer of the thermal transfer film (corresponding to the intermediate transfer recording medium of the present invention) and the thermal transfer ink layer of the thermal transfer recording medium so as to face each other. Disclosed is an image forming method in which a colorant contained in an ink layer is transferred to a thermal transfer layer of a thermal transfer film and then transferred to the image forming body (corresponding to the transferred body of the present invention) together with the imaged thermal transfer layer. (For example, refer to Patent Document 2). This Patent Document 2 exemplifies forming a convex portion by an ink jet recording method in which ink is partially ejected from a nozzle. However, the receiving layer also serves as an adhesive layer, and the material of the transfer target is limited. Therefore, there is a drawback that it cannot be used for a transfer material of various materials. Further, in Patent Document 2, it is also possible to provide an adhesive layer on a thermal transfer layer provided on a base material in the thermal transfer film to improve the fixing property with a transfer medium during thermal transfer. However, when such an adhesive layer is present, there is a problem in that an image by an ink jet method cannot be formed.
For this purpose, the present applicant has further advanced research, and by providing an adherence layer having adhesion to the receiving layer on the transfer object, when transferring to the adherence layer surface of the transfer object, At least a part of the binder contained in the receiving layer is softened and / or melted by heat and pressure, and is closely integrated with the adherent layer to solve the problem by firmly adhering to the present invention. It has come.

JP-A-62-238791 JP 2003-80855 A

  Accordingly, the present invention has been made to solve such problems. The purpose is not to use an ink ribbon that leaves traces of personal information or the like when printing an image on an intermediate transfer recording medium, but when an image is printed on an intermediate transfer recording medium, the image does not blur and dries quickly. When the image is transferred to the transfer medium using the intermediate transfer recording medium, the material of the transfer medium is less limited, the transfer can be performed with good adhesion, and the foil can be cut efficiently and transferred efficiently. An object of the present invention is to provide an intermediate transfer recording medium that requires durability such as abrasion resistance and solvent resistance after transfer, and a transferred object to be transferred.

In order to solve the above-mentioned problems, an intermediate transfer recording medium according to the invention of claim 1 is an intermediate transfer recording medium for transferring to the adherend layer of a transfer object having an adherent layer, and a substrate, A release layer, a hard coat layer, and a receiving layer are sequentially laminated on one surface of the substrate, the substrate is a stretched film of polyethylene terephthalate, the release layer is a melamine-based resin, (1) isocyanates having 3 or more isocyanate groups in the molecule; (2) polyfunctional (meth) acrylates having at least one hydroxyl group and at least two (meth) acryloyloxy groups in the molecule; Or (3) an ionizing radiation curable resin containing a urethane (meth) acrylate oligomer which is a reaction product of a polyhydric alcohol having at least two hydroxyl groups in the molecule, Includes a polyethylene wax as a filler, a ionizing radiation curable resin cured by ionizing radiation, the receiving layer is a cationic urethane resin (binder) contains a micro-silica as cationic fixing agents and fillers, cationic urethane resin And the ratio of the cationic fixing agent and the microsilica are cationic urethane resin: cationic fixing agent: microsilica = 100: 5 to 20: 1 to 10 on a mass basis, and the receiving layer displays an image in an ink jet system. When transferring to the adherend layer of the transfer object, the binder contained in the receiving layer is softened and / or melted by heat and pressure during transfer, and the transferred object is transferred. close contact with the wear layer, one is peeled at the interface between the hard coat layer comprising a filler the releasing layer transfer By reduction,
The transfer object is an intermediate transfer recording medium characterized in that a measured value according to JIS-K-5400 is 2H or more because the hard coat layer containing a filler is the outermost surface .
The intermediate transfer recording medium according to the invention of claim 2 is such that a hologram layer and a transparent reflection layer are used in place of the hard coat layer.
According to a third aspect of the present invention, the transferred object to be transferred formed the image on the receiving layer of the intermediate transfer recording medium by an ink jet method using the intermediate transfer recording medium according to any one of the first and second aspects. The hard coat layer and the receiving layer on which an image is formed, or the receiving layer on which a hologram layer, a transparent reflective layer and an image are formed, A transferred object characterized by being transferred.

According to the first aspect of the present invention, when an image is printed on an intermediate transfer recording medium by an ink jet method, an ink ribbon that leaves traces of personal information or the like is not used, and the image does not bleed and can be printed quickly. The intermediate transfer recording medium can be used to efficiently and firmly adhere the hard coat layer and the receiving layer on which the image is formed to the adherend layer of the transfer material of various materials, and is also rub-resistant after transfer. And an intermediate transfer recording medium excellent in durability such as solvent resistance.
According to the second aspect of the present invention, in addition to the effect of the first aspect, an intermediate transfer recording medium capable of transferring a hologram excellent in design and anti-counterfeiting is provided.
According to the third aspect of the present invention, a clear image having no blur can be transferred to various materials to be transferred so that the foil is cut, efficiently and firmly adhered, and after transfer, the rub resistance is improved. And a transferred object having excellent durability such as solvent resistance.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of an intermediate transfer recording medium showing one embodiment of the present invention.
FIG. 2 is an explanatory diagram for explaining the image forming method on the intermediate transfer recording medium of the present invention.
FIG. 3 is a cross-sectional view of a transfer medium onto which a hard coat layer and a receiving layer on which an image has been formed are transferred using the intermediate transfer recording medium of the present invention.
FIG. 4 is a cross-sectional view of an intermediate transfer recording medium showing an embodiment of the present invention.

  (Intermediate transfer recording medium) As shown in FIG. 1, an intermediate transfer recording medium 10 of the present invention has a base material 11, a release layer 13, a hard coat layer 14, and a cationic layer on one surface of the base material 11. It has the receiving layer 21 containing a urethane type resin (binder), a cationic fix agent, and a filler. Moreover, you may provide other layers, such as a primer layer 16 and a printing layer, in these interlayers and / or the layer surface as needed. Conventionally, the receiving layer 21 has an adhesive function with the transfer target 101 during transfer. However, since the binder resin of the receiving layer 21 is limited, the binder resin can be bonded and transferred. The material of the transfer body 101 has also been limited. Therefore, in the intermediate transfer recording medium 10 of the present invention, the binder contained in the receiving layer 21 is not provided to the intermediate transfer recording medium 10 but is contained in the receiving layer 21 by heat and pressure during transfer to the surface of the transfer object 101. The adherend layer 102 is provided to be softened and / or melted and closely adhered to be integrated. If the adherend layer 102 is provided on the transfer object 101, it is included in the receiving layer 21 of the intermediate transfer recording medium 10 when transferring to the adherend layer 102 on the surface of the transfer object 101, as shown in FIG. 3. Since at least a part of the binder is softened and / or melted and closely adhered and integrated, a strongly adhered transfer can be performed. For this reason, even if there is only one type of intermediate transfer recording medium 10, there is no limitation on the material of the transfer object 101, and it becomes possible to handle many transfer objects. Here, the close contact includes adhesion and adhesion due to chemical / electrical affinity, adhesion due to mutual melting, and the like.

  (Substrate) The substrate 11 is not particularly limited. Specific examples of the preferred substrate 11 include polyester, polypropylene, polycarbonate, cellulose acetate, and polyethylene derivatives having high heat resistance such as polyethylene terephthalate and polyethylene naphthalate. And stretched or unstretched films of plastics such as polyamide and polymethylpentene. Moreover, the composite film which laminated | stacked 2 or more types of these materials can also be used. Although the thickness of a base film can be suitably selected according to material so that the intensity | strength, heat resistance, etc. may become appropriate, the thing about 1-100 micrometers is normally used normally.

  (Release layer) A release layer 13 may be provided to improve the releasability during transfer, and a release layer may be provided instead of the release layer 13 as necessary. If both are provided, the transferability can be further improved.

  (Release layer) As the release layer 13, there are usually a release resin, a resin containing a release agent, a curable resin which is cross-linked by ionizing radiation, etc., preferably a melamine-based resin, which will be described later. By combining with the hard coat layer 14, the releasability from the release layer 13 is stabilized, and the transferability during transfer can be improved. The release layer 13 is formed by dispersing or dissolving the resin in a solvent, applying and drying the resin by a known coating method such as roll coating or gravure coating, and baking at a temperature of about 150 ° C to 200 ° C. The thickness of the release layer 13 is usually about 0.01 μm to 5.0 μm, preferably about 0.5 μm to 3.0 μm.

  (Peeling layer) As a peeling layer provided as needed, generally cellulose derivatives such as ethyl cellulose, nitrocellulose, cellulose acetate, acrylic resins such as polymethyl methacrylate, polyethyl methacrylate, polybutyl acrylate, It is formed using thermoplastic resins such as polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, polyvinyl butyral, etc., and thermosetting resins such as unsaturated polyester resin, polyurethane resin, and amino alkyd resin. be able to. The release layer preferably contains a filler such as microsilica or polyethylene wax in order to improve the foil breakability. The release layer may be prepared by dispersing or dissolving the above resin in a solvent and applying at least one part by a known coating method such as roll coating, gravure coating, bar coating, etc. and drying to form a coating film. good. The thickness of the release layer is usually about 0.1 μm to 5 μm, preferably about 0.5 μm to 2 μm. When both the release layer 13 and the release layer are provided, they may be used in combination as appropriate. In this case, the release layer is transferred to the transfer target after transfer, and has a function as a protective layer. .

  (Hard Coat Layer) The hard coat layer 14 contains at least an ionizing radiation curable resin as a main component and includes micro silica or polyethylene wax. 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. Using an ionizing radiation curable resin containing a urethane (meth) acrylate oligomer which is a reaction product of a polyfunctional (meth) acrylate having a polyhydric alcohol having at least two hydroxyl groups in the molecule, or (3) A wax may be included, 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.

  (Polyethylene wax) Polyethylene wax includes polyethylene resin particles and beads, and is preferably spherical beads. However, when polyethylene wax is added, the foil breakage is reduced, so the amount added is about 0.01 to 10 parts by weight, preferably 0.1 to 5 parts by weight, with respect to 100 parts by weight of ionizing radiation curable resin. And After the transfer, the hard coat layer 14 becomes the outermost surface layer, and the contained polyethylene wax protects the medium from mechanical friction and abrasion, and also protects unique information such as an image to be described later.

  (1) By including polyethylene wax, the hard coat layer 14 becomes the outermost surface layer after transfer, but it can be used in extremely harsh environments, used for a long period of time, and / or repeatedly used many times. It protects the image provided on the transfer material from solvent, mechanical friction, and abrasion, and is resistant to scratches and has excellent durability. (2) Since the hard coat layer 14 is in contact with the release layer 13 using the melamine-based resin, the hard coat layer 14 peels between the hard coat layer 14 and the release layer 13 and has a stable peelability. Generation of burrs and the like can be extremely reduced during transfer. (3) The hard coat layer 14 contains polyethylene wax as a filler, and the receiving layer 21 contains micro silica as a filler so that the filler is mixed in all layers to be transferred. The foil sharpness at the time of transfer to the medium (transfer object 101) can be improved, and the transferability can be improved together with the stable releasability of (2).

  (Formation of hard coat layer) The hard coat layer 14 is formed by adding polyethylene wax to the above-mentioned ionizing radiation curable resin, and if necessary, adding a photopolymerization initiator, a plasticizer, a stabilizer, a surfactant and the like to the solvent. It may be dispersed or dissolved, applied by a known coating method such as roll coating, gravure coating, comma coating or die coating, dried, and reacted (cured) with ionizing radiation.

  (Thickness of hard coat layer) The thickness of the hard coat layer 14 is usually about 1 to 5 μm, but in the present invention, it is used in an extremely severe environment, has no expiration date, or is used for a long time. In order to protect the image from solvent and mechanical friction and wear, especially scratching, and to provide durability against scratching even in repeated use many times, the hard coat layer 14 preferably has a thickness of 5 μm or more. Is 10 μm or more, more preferably 15 μm or more. Although the upper limit is not particularly limited, it is about 25 μm or less from the viewpoint of price and foil breakability. The hard coat layer 14 has a thickness of 5 μm or more, preferably 10 μm or more, and more preferably 15 μm or more, so that durability is enhanced, use in an extremely harsh environment, no expiration date, or long-term use. The image can be protected from a chemical mechanical external force even when used and / or repeatedly used many times. As will be described in the examples, when the total thickness of the layer to be transferred becomes hard with the hard coat layer 14 / receptive layer 21 and becomes considerably thicker than the number of transfer layers of a normal transfer foil, burrs occur or the foil breaks. Transferability such as transfer speed reduction is significantly reduced, but by including a filler component in the entire layer to be transferred, it is possible to improve the peelability and the foil cutting property, so that transfer can be easily performed. Can do.

  (Hologram Layer) In the present invention, the hologram layer 15 and the transparent reflection layer 17 can be used in place of the hard coat layer 14 to impart high designability and anti-counterfeit property of the hologram. As shown in FIG. 4, the layer structure is substrate 11 / release layer 13 / hologram layer 15 / reflection layer 17 / primer layer 16 (if necessary) / receiving layer 21. Since the hologram layer 15 uses a cured product of an ionizing radiation curable resin similar to or the same as the hard coat layer, it has the function of a hard coat layer and is two birds with one stone. The hologram layer 15 may include a cured product of ionizing radiation curable resin and reactive silicone, and may also include polyethylene wax in addition to them. This makes it possible to transfer a hologram with excellent heat resistance that does not whiten by heat even after ionizing radiation curing, excellent conformability to expansion and contraction, and less deterioration of hologram effects such as cracking and whitening to a three-dimensional surface. be able to. As the ionizing radiation curable resin, for example, an epoxy-modified acrylate resin, a urethane-modified acrylate resin, an acrylic-modified polyester, and the like can be applied, and a urethane-modified acrylate resin is preferable.

  (Ionizing radiation curable resin composition M) A preferable urethane-modified acrylate resin is "ionizing radiation curable resin composition M". As the “ionizing radiation curable resin composition M”, a cured product of an ionizing radiation curable resin containing a urethane (meth) acrylate oligomer, specifically, light disclosed in JP-A-2001-329031. A curable resin is preferred. That is, “ionizing radiation curable resin composition M” (1) isocyanates having 3 or more isocyanate groups in the molecule, (2) at least one hydroxyl group and at least two (meth) acryloyloxy groups in the molecule An ionizing radiation curable resin containing a urethane (meth) acrylate oligomer which is a reaction product of a polyfunctional (meth) acrylate having, or (3) a polyhydric alcohol having at least two hydroxyl groups in the molecule, and (meth) The hologram layer contains a cured product of an acrylate oligomer and a lubricant, and the hologram layer is (1) an isocyanate having three or more isocyanate groups in the molecule, and (2) at least one hydroxyl group in the molecule and a (meth) acryloyloxy group. Polyfunctional (meth) acrylates having at least 2 or (3) at least 2 hydroxyl groups in the molecule A urethane which is the reaction product of a polyhydric alcohol (meth) (herein referred to as "ionizing radiation-curable resin composition M") ionizing radiation curable resin containing an acrylate oligomer having. Moreover, you may include a (meth) acrylate oligomer etc. as needed.

  ((Meth) acrylate oligomer) The (meth) acrylate oligomer may be a heat-resistant oligomer, and examples thereof include trade names of Nippon Synthetic Chemical Co., Ltd .; Purple light 6630B, 7510B, 7630B and the like. The ratio on the basis of mass to be contained is about 10 to 30 parts, preferably 15 to 25 parts with respect to 100 parts of “ionizing radiation curable resin composition M”. If it is less than this range, the heat resistance is insufficient, and if this range is exceeded, the heat resistance is good, but cracking tends to occur.

  (Reactive silicone) As the reactive silicone, there is a reactive silicone that reacts with the resin at the time of curing with ionizing radiation to bond and integrate, or a part of the reactive silicone remains. The reactive silicone is a reactive silicone modified by acrylic modification, methacryl modification, epoxy modification, or the like, and the ratio on a mass basis to contain the reactive silicone is “ionizing radiation curable resin composition M” 100. On the other hand, it is about 0.1 to 10 parts, preferably 0.3 to 5 parts. If it is less than this range, peeling from the press stamper is insufficient at the time of relief molding, and it is difficult to prevent contamination of the press stamper and the moldability is poor. Further, beyond this range, the adhesiveness of the transparent reflective layer to the hologram layer surface is low, and the commercial value is lost by peeling between the hologram layer and the transparent reflective layer. Moreover, although the adhesiveness with a transparent reflective layer is a little inferior, you may add silicone oil.

  (Polyethylene wax) Polyethylene wax includes polyethylene resin particles and beads, and is preferably spherical beads. However, when polyethylene wax is added, the foil breakage is reduced, so the amount added is about 0.01 to 10 parts by weight, preferably 0.1 to 5 parts by weight, with respect to 100 parts by weight of ionizing radiation curable resin. And

  As described above, by including the cured product of the ionizing radiation curable resin, the reactive silicone, and the polyethylene wax in the hologram layer 15, the following effects can be achieved. (1) Since the coated film of the hologram layer 15 in a coated state before ionizing radiation curing is not sticky in a finger dry state and can be wound up without blocking, roll-to-roll processing can be performed. (2) The reactive silicone is included in the hologram layer 15 so that the moldability is good, so that the relief structure can be easily molded and cured with ionizing radiation after molding. (3) The hologram layer 15 after transfer becomes the outermost surface layer, and the hologram can be removed from the solvent, mechanical friction, and wear even when used in extremely severe environments, used for a long period of time, and / or repeatedly used many times. Protects against damage and has excellent durability. (4) Since the hologram layer 15 is in contact with the release layer 13 using a melamine-based resin, it has a stable releasability, good foil breakage at the time of transfer, and extremely low occurrence of burrs. it can.

  (Hologram Layer Formation) The hologram layer 15 is formed by dispersing or dissolving the above resin and, if necessary, the solvent in a solvent, and using a known coating method such as roll coating, reverse roll coating, gravure coating, comma coating, etc. It may be applied to at least one part and dried to form a coating film. The thickness of the hologram layer 15 is usually about 1 μm to 30 μm, preferably about 2 μm to 20 μm. It may be applied several times.

  (Hologram) Next, on the surface of the hologram layer 15, a predetermined relief structure such as a hologram that exhibits a light diffraction effect is formed 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.

  As a method for producing these relief shapes, in addition to holograms and diffraction gratings produced using hologram photographing and recording means, holograms produced using an electron beam drawing device based on optical calculations such as interference and diffraction, A diffraction grating can also be mentioned. Also, a relatively large pattern such as a hairline pattern or a line pattern may be a machine cutting method. These holograms and / or diffraction gratings may be recorded single or multiple, or may be recorded in combination. These original plates can be prepared by known materials and methods, and usually, laser beam interference using a glass plate coated with a photosensitive material, using an electron beam drawing apparatus on a glass plate coated with an electron beam resist material. An electron beam drawing method for patterning can be applied.

  (Relief shaping) The relief shape is shaped (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 may be single or plural. When providing a plurality of hologram patterns, it is preferable to provide a hologram mark (timing mark) for each hologram pattern. When the hologram mark (timing mark) is detected and an image is formed by an inkjet method described later, the hologram pattern and the inkjet image can be formed in synchronization, and the design of the synchronized hologram image and print image The effect and security can be further improved.

  (Relief Curing) 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 (hologram layer 15) when cured (reacted) by irradiation with ionizing radiation after the relief is formed. The ionizing radiation may be classified according to the quantum energy of the electromagnetic wave, but in this specification, all ultraviolet rays (UV-A, UV-B, UV-C), visible light, gamma rays, X-rays, electrons It is defined as including a line. Accordingly, ultraviolet (UV), visible light, gamma rays, X-rays, or electron beams can be applied as ionizing radiation, but ultraviolet (UV) is preferred. An ionizing radiation curable resin that is cured by ionizing radiation may contain a photopolymerization initiator and / or a photopolymerization accelerator in the case of ultraviolet curing, and may not be added in the case of high energy electron beam curing. Can be cured even with thermal energy. When a thermosetting resin is used as the hologram layer 15, it may be cured by aging in a temperature and humidity environment according to the curing conditions of the thermosetting resin to be used.

  (Relief pattern) The pattern of the hologram layer 15 is preferably a quasi-continuous pattern. When creating a press mold (referred to as a stamper) for the pseudo continuous pattern, it is only necessary to match a plurality of small relief plates with high accuracy to make the joints inconspicuous, or to fill the joints with resin. In this way, by using a quasi-continuous pattern, the area can be as large as possible, or preferably the entire surface. Further unique design can be improved by synchronizing or matching with any other printed pattern against a large area or entire surface of the hologram pattern. The printed pattern may be appropriately provided on the interlayer or the layer surface by a known printing method or the like, and the printed pattern may be provided on either the in-mold transfer foil and / or the shrink film.

(Transparent Reflective Layer) Since the transparent reflective layer 17 is provided on the transparent reflective layer 17 on the relief surface of the hologram layer 15 provided with a predetermined relief structure, the reflection and / or diffraction effect of the relief is enhanced. If the reflectance of 15 is higher, it is not particularly limited. The transparent reflecting layer 17 has a substantially colorless and transparent hue, and its optical refractive index is different from that of the hologram layer. A simple 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.

  (Primer layer) The receiving layer 21 is provided on the surface of the hard coat layer 14 or the surface of the transparent reflective layer 17. In order to improve the adhesive strength, it is preferable to provide the primer layer 16. Examples of the primer layer 16 include polyurethane resins, polyester resins, polyamide resins, epoxy resins, phenol resins, polyvinyl chloride resins, polyvinyl acetate resins, vinyl chloride-vinyl acetate copolymer. Copolymers, acid-modified polyolefin resins, copolymers of ethylene and vinyl acetate or acrylic acid, (meth) acrylic resins, polyvinyl alcohol resins, polyvinyl acetal resins, polybutadiene resins, rubber compounds, etc. Preferably known as conventional adhesives such as those having oxygen or nitrogen, or reactive isocyanate compounds, such as acrylic resins, urethane resins, amide resins, epoxy resins, ionomer resins, rubber resins, etc. Is. The primer layer is not necessarily contained since it has a thin film thickness, but it is preferable to contain a filler such as microsilica or polyethylene wax.

  (Receiving layer) A receiving layer 21 is provided on the surface of the hard coat layer 14 or the transparent reflective layer 17 via a primer layer 16 as necessary. The receiving layer 21 is the outermost surface of the intermediate transfer recording medium 10. An image is printed on the receiving layer 21 by an ink jet method. The receiving layer 21 includes at least 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.

  (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. And a poor solvent, and phase separation and gelation during drying to form a porous network structure, but there is a problem that the image is not sufficiently fixed and the image becomes light during washing. It was. According to the receiving layer 27 of the print label 20 of the present invention, even the image 103 printed by the ink jet method has high image quality, good fixability, and improved 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.

  (Other layers) The layers provided on the interlayer and / or the layer surface as needed include a primer layer, a printing layer, an antistatic layer, a back-sliding layer, etc., and each may be a known layer. In particular, the printing layer may be printed by a known screen printing or gravure printing method using colored ink or fluorescent ink.

  (Transfered material to be transferred) The transferred material to be transferred of the present invention using the intermediate transfer recording medium 10 of the present invention is (1) substrate 11 / release layer 13 / hard coat layer 14 / primer layer 16. (If necessary) / receiving layer 21 or substrate 11 / release layer 13 / hologram layer 15 / transparent reflective layer 17 (if necessary) / primer layer 16 (if necessary) / receiving layer 21 And (2) an image forming step for forming an image on the receiving layer 21 of the intermediate transfer recording medium 10 by an ink jet method, and (3) an image is formed. The surface of the receiving layer 21 of the formed intermediate transfer recording medium is superposed on the adherent layer 102 of the transfer body 101 and heated to form a hard coat layer 14 / primer layer 16 (if necessary) / image. Receiving layer 21, or The hologram layer 15 / transparent reflective layer 17 / primer layer 16 (if necessary) / image transferring a receiving layer 21, which is formed transfer process consists of three steps.

  (First Step) This is a preparatory step for preparing the intermediate transfer recording medium 10, which may be manufactured and prepared using the materials and manufacturing methods described above.

  (Second Step) In the image forming step for forming the image 103, as shown in FIG. 2, the image 103 is formed on the receiving layer of the intermediate transfer recording medium 10 by the ink jet method. The ink jet method includes a thermal impact method, but is not particularly limited. The ink jet ink includes water-based and oil-based inks, but is not particularly limited. Also, the image 103 formed by the ink jet method may be a spot shape such as a circle or a star, or any shape such as letters, numbers, illustrations, and photographs, and the color tone is not limited to a single color, a plurality of colors, or a full color image. Absent. Preferably, the variable information is printed by an inkjet method on demand. Further, when an image is formed by the inkjet method, if a hologram mark (timing mark) corresponding to the hologram pattern is provided, the hologram mark (timing mark) is detected, and the inkjet image is formed on the hologram pattern. They can be formed synchronously, and the design effect and security of the synchronized hologram image and printed image can be further improved. The ink jet method does not use an ink ribbon that leaves traces of personal information or the like when printing the image 103, and also when printing the image 103, the image does not blur and dries quickly and is efficient.

  (Third Step) This is a transfer step to the transfer target 101, and as shown in FIG. 3, the receiving layer 21 surface of the intermediate transfer recording medium 10 on which the image 103 is formed is attached to the adherend layer 102 of the transfer target 101. The receiving layer 21 / primer layer 16 (if necessary) / hard coat layer 14 on which the image 103 is formed are transferred to the adherend layer 102 of the transfer object 101 by being superimposed and heated. In the transfer, the surface of the receiving layer 21 of the intermediate transfer recording medium 10 on which the image 103 is formed is superposed on the adherent layer 102 of the transfer object 101 and heated, whereby the adherend layer 102 of the transfer object 101 is hard-coated. The layer and the print image are transferred and formed. As a method for forming the transfer object 101 on the adherend layer 102, a known transfer method may be used. For example, hot stamping by hot stamping (foil stamping), entire surface or stripe transfer by a hot roll, thermal head (thermal printing head) A known method such as a thermal printer (also referred to as a thermal transfer printer) can be applied. The shape may be a spot shape such as a circle, a rectangle, or a star shape, or an arbitrary shape such as a letter or a number.

  In the transfer step, when the surface of the receiving layer 21 of the intermediate transfer recording medium 10 on which the image 103 is formed is transferred to the adherent layer 102 of the transfer target 101, it is included in the receiving layer 21 by heat and pressure during transfer. The binder that is softened and / or melted is brought into intimate contact with the adherent layer 102 and is firmly bonded as shown in FIG. The ink-jet receiving layer 21 that forms the image 103 by the conventional ink-jet method also serves as an adhesive layer when transferring to the transfer object 101. Therefore, depending on the type of the transfer object 101, the adhesion when transferring is improved. Inferior. According to the present invention, since the adherend layer 102 having a dedicated adhesion function is provided on the transfer surface of the transfer object 101 for bonding to the transfer object 101, the transfer object 101 made of various materials can be used. Can be easily adhered. The image forming process in the second process and the transfer process in the third process may be separate off-line operations or in-line operations performed continuously. Preferably, even in-line operation, the image 103 does not bleed and dries quickly, so that the transfer operation can be performed immediately after the image 103 is printed.

  (Foil cutting property) In the transfer step, after the receiving layer 21 / hard coat layer 14 on which the image 103 is formed is transferred and heated by being superimposed on the transfer object, the portion not transferred is transferred from the transferred portion to the foil. It is cut off and peeled off together with the base material 11 release layer 13 and removed. However, the foil is cut, that is, the receiving layer 21 / the hard coat layer 14 is cut into two layers. Among these layers, the receiving layer 21 and the hard coat layer 14 are thick, and the foil cutting property. Is bad. In a preferred embodiment of the present invention, the filler is included in all of the receiving layer 21, the primer layer 16 and the hard coat layer 14 provided as necessary, whereby the foil cutting property can be improved and the transfer operation can be performed efficiently. In the conventional ink jet receptive layer 21, if a filler is contained in order to improve the foil breakability, there is a risk that the adhesiveness to the transfer medium is lowered and the transfer itself cannot be performed. However, in the present invention, the receiving layer 21 can contain a filler.

  (Transfer To be Transferred) A transfer layer 102 is provided on the transfer surface of the transfer target 101. The transfer target 101 is not particularly limited, and may be any of natural fiber paper, coated paper, tracing paper, plastic film that is not deformed by heat during transfer, glass, metal, ceramics, wood, cloth, and the like. . Further, at least a part of the medium of the transfer target 101 may be colored, printed, or other decorations, and the transferred hologram surface may be printed or other decorations. The shape of the transfer target 101 is not particularly limited, and may be a flat surface or a three-dimensional object. The surface to be transferred is not limited to a flat surface, and may be a three-dimensional surface having a curved surface or unevenness. The adherent layer 102 is not particularly limited as long as it is softened and / or melted by heat and pressure during transfer with the binder contained in the receiving layer so as to be closely integrated. For example, polyester resins, ethylene-vinyl acetate copolymers, vinyl chloride-vinyl acetate copolymers, polystyrene resins, acrylic resins, polyurethane resins, acrylic urethane resins, modified resins of these resins, and these resins Preferably, it is the same resin as the binder resin of the receiving layer 21, and a polyurethane resin is particularly preferable.

  (Image) When an ID card such as an identification card is created as the image 103 by the ink jet method, the image can be easily formed, but these images have a drawback that they are inferior in durability, particularly in friction resistance. After the image is printed on the receiving layer 21 of the intermediate transfer recording medium 10 of the present invention, it is transferred to the surface of the adherend layer 102 of the transfer object 101 to the surface, whereby a highly durable hard coat layer 14 or hologram layer 15 is located on the outermost surface to protect the image and enhance durability.

  (Durability) The pencil hardness test of the hard coat layer 14 which becomes the outermost surface after transfer is measured according to JIS-K5400, and a hardness of H or higher is preferable. Further, the scratch strength of the hard coat layer 14 is 150 g or more, preferably 200 g or more, from the viewpoint of sufficient friction resistance on the surface. The scratch strength was measured using a wear resistance tester (HEIDON-18) on a sample conditioned at 23 ° C. and 55% RH for 24 hours, with a 0.8 mmφ sapphire needle at a right angle. As a result, the load applied to the sapphire needle was gradually increased from 0 g to 200 g, and the load when the surface began to be scratched was measured while sliding and moving the sample surface at 60 cm / min. The larger the load, the better.

  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.

First, a transfer material composed of the transfer object 101 / the adherend layer 102 is prepared. As the transferred object 101, a four-layer polyvinyl chloride sheet having a thickness of 0.76 mm is used for a credit card, and the following deposited layer composition is applied as an adhered layer composition to one surface. The coated layer was dried so as to have a thickness of 1 μm after drying with a roll coater, and dried at 120 ° C. to form an adherent layer 102.
・ <Adhesion layer composition>
15 parts by mass of urethane resin, 85 parts by mass of solvent (water: isopropyl alcohol = 90: 10)

Example 1 Using a PET film having a thickness of 25 μm as the base material 11, the following release layer resin composition (coating liquid) was dried on one surface of the base material 11 by gravure coating, and then 2 μm. It was applied and dried, and baked at 180 ° C. for 20 seconds to form a release layer 13.
・ <Resin layer resin composition>
TCM01 medium (Dainippon Ink Co., Ltd., trade name of melamine resin) 25 parts by mass Solvent (MEK: toluene = 1: 1) 75 parts by mass To the surface of the release layer 13, ionizing radiation curable resin for the following hard coat layer The composition was applied with a gravure reverse coater so that the coating thickness after drying was 6 μm, dried at 100 ° C., and then cured by irradiating with ultraviolet rays using a high pressure mercury lamp to form a hard coat layer 14. .
・ <Procedure for producing ionizing radiation curable resin composition>
First, “ionizing radiation curable resin composition M” was produced by the following procedure. A reactor equipped with a stirrer, reflux condenser, dropping funnel and thermometer was charged with 206.1 g of ethyl acetate and 133.5 g of isophorone diisocyanate trimer (HULS product, VESTANAT T1890, melting point 110 ° C.), 80 The solution was heated to 0 ° C. and dissolved. After air was blown into the solution, 0.38 g of hydroquinone monomethyl ether, 249.3 g of pentaerythritol triacrylate (product of Osaka Organic Chemical Industry Co., Ltd., Viscoat 300) and 0.38 g of dibutyltin dilaurate were charged. After reacting at 80 ° C. for 5 hours, 688.9 g of ethyl acetate was added and cooled.
An ionizing radiation curable resin composition is prepared by blending the “ionizing radiation curable resin composition M”, a film-forming resin (acrylic oligomer), polyethylene wax, a photopolymerization initiator, and a solvent in the following composition. did.
・ <Ionizing radiation curable resin composition>
“Ionizing radiation curable resin composition M” 30 parts by mass Polyethylene wax (average particle size 5 μm) 0.6 parts by mass Photopolymerization initiator (manufactured by Ciba, trade name Irgacure 907) 0.9 parts by mass Solvent (ethyl acetate: Methyl isobutyl ketone = 1: 1) 70 parts by weight The following primer layer composition was applied to the surface of the hard coat layer 14 with a gravure coater so that the coating amount after drying was 3 μm, and dried at 100 ° C. A primer layer 16 was obtained.
・ <Primer layer composition working solution>
Polyester resin 20 parts by weight Microsilica (average particle size 0.5 μm) 1 part by weight Solvent (toluene: methyl ethyl ketone = 1: 1) 40 parts by weight The following receptor layer composition is dried on the surface of the primer layer 16 with a gravure reverse coater. The intermediate transfer recording medium 10 of Example 1 was obtained by coating and drying at 120 ° C. so that the subsequent thickness was 4 μm to form the receiving layer 21 capable of inkjet printing.
・ <Receptive layer composition>
Quaternary ammonium salt type polycarbonate-based polyurethane 20 parts by mass Dunfix 505RE (manufactured by Nitto Boseki Co., Ltd .; polycationic fixative agent) 2 parts by mass Microsilica (average particle size 0.5 μm) 1 part by mass Solvent (water) 80 parts by mass

Example 2 Using a PET film having a thickness of 25 μm as the base material 11, the following release layer resin composition (coating liquid) was dried on one surface of the base material 11 by gravure coating, and then 2 μm. It was applied and dried, and baked at 180 ° C. for 20 seconds to form a release layer 13.
・ <Resin layer resin composition>
TCM01 medium (Dainippon Ink Co., Ltd., melamine resin trade name) 25 parts by mass Solvent (MEK: toluene = 1: 1) 75 parts by mass Gravure reverse the following ionizing radiation curable resin composition to the surface of the release layer 13 It was coated and dried at 100 ° C. so that the thickness after drying with a coater was 5 μm.
・ <Ionizing radiation curable resin composition of hologram layer>
Iupimer UV-V3031 (Mitsubishi Chemical Co., Ltd., UV curable resin trade name) 100 parts by mass Reactive silicone (Shin-Etsu Chemical Co., Ltd., trade name X-22-1602) 0.5 parts by mass Polyethylene wax (average particle size 3 to 3) 5 μm, spherical) 2 parts by weight Photopolymerization initiator (trade name Irgacure 184, manufactured by Ciba) 5 parts by weight Ethyl acetate 300 parts by weight Next, from the hologram by a two-beam interference method of a three-dimensional company emblem, 2P Duplicate a press mold that has been reproduced by the law (relief that reproduces a three-dimensional company emblem image) and a hologram mark for each pattern to form a pair, and the pair is sequentially arranged in the flow direction of the duplication. It stuck on the embossing roller of the apparatus, and it heat-pressed (embossed) between the opposing rollers, and formed the relief which consists of a fine uneven | corrugated pattern. Immediately after the shaping, the hologram layer 15 was formed by irradiating and curing with ultraviolet rays using a high-pressure mercury lamp.
The relief surface of the hologram layer 15 was subjected to corona treatment, and titanium oxide having a thickness of 500 nm was formed by a vacuum deposition method to form a transparent reflection 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. to obtain a primer layer.
・ <Primer layer composition working solution>
Polyester resin 20 parts by weight Microsilica (average particle size 0.5 μm) 1 part by weight Solvent (toluene: methyl ethyl ketone = 1: 1) 80 parts by weight To the primer layer surface, the following receiving layer composition was dried with a gravure reverse coater. The intermediate transfer recording medium 10 of Example 2 was obtained by coating and drying to a thickness of 4 μm to form the receiving layer 21.
・ <Receptive layer composition>
Quaternary ammonium salt type polycarbonate-based polyurethane 20 parts by mass Dunfix 505RE (manufactured by Nitto Boseki Co., Ltd .; polycationic fixative agent) 2 parts by mass Microsilica (average particle size 0.5 μm) 1 part by mass Solvent (water) 80 parts by mass

(Evaluation Test 1) <Offline> The image 103 is printed (formed) on the receiving layer 21 of the intermediate transfer recording medium 10 of Example 1 above. For printing, a face photograph and a name were printed using a 600 dpi color ink jet printer.
Next, the intermediate transfer recording medium 10 on which the image 103 (photograph and name) is formed on the receiving layer 21 is heated as a transfer material onto the surface of the adherend layer 102 of the transfer object 101 / adhesion layer 102 described above. It transferred with the roll-type transfer apparatus, and the base material was peeled off together with the release layer and gradually removed.
A transferred material to be transferred having a constitution of hard coat layer 14 / primer layer 16 (if necessary) / receiving layer 21 on which image 103 was formed / adhered layer 102 / transfer object 101 was obtained. As a result of visual observation, a face photograph and a name were observed.

(Evaluation Test 2) <Inline> In addition, the printing operation and the transfer operation were performed inline on the receiving layer 21 of the intermediate transfer recording medium 10 of Example 2 using an inkjet printer built-in transfer device. A timing mark is read into the receiving layer 21 of the intermediate transfer recording medium 10, the timing is taken, and a face photograph and name (image 103) are applied to the surface of the hologram image (relief for reproducing a three-dimensional company emblem image) by an inkjet method. Immediately after printing and drying and drying for 2 seconds with a far-infrared heater, the above-mentioned transferred object 101 / adhered layer 102 surface of the applied layer 102 are superimposed as a transferred material with a heat roller and a rubber roller at 145 ° C. After transferring at a running speed of 1 m / min, the substrate and the release layer were peeled off and removed.
When the transferred material to be transferred was visually observed, it was possible to observe the face image and the name image 103 at the position of the hologram image without any dirt or blur, and personal information was transferred on demand.

(Evaluation results) In Examples 1 and 2, the releasability at the time of transfer was good, the foil breakage was good, and transfer was normally performed. I was able to transfer without problems.
Moreover, when the pencil hardness test of the hard-coat layer 14 surface of Examples 1-2 was measured based on JIS-K-5400, it has hardness of 2H or more, and also the surface of Examples 1-2. The scratch strength was 200 g or more of sapphire and had sufficient durability. However, in Comparative Example 1, the scratch strength was poor and the durability was not sufficient.

1 is a cross-sectional view of an intermediate transfer recording medium showing one embodiment of the present invention. FIG. 3 is an explanatory diagram for explaining an image forming method on an intermediate transfer recording medium of the present invention. FIG. 2 is a cross-sectional view of a transfer medium having transferred thereon a hard coat layer and a receiving layer on which an image is formed using the intermediate transfer recording medium of the present invention. 1 is a cross-sectional view of an intermediate transfer recording medium showing one embodiment of the present invention.

Explanation of symbols

10: Intermediate transfer recording medium 11: Base material 13: Release layer 14: Hard coat layer 15: Hologram layer 16: Primer layer 17: Transparent reflective layer 19: Adhesive layer 21: Receptive layer 101: Transferred material 102: Received Layering 103: Image

Claims (3)

An intermediate transfer recording medium for transferring a transfer body having an adherent layer to the adherend layer,
A base material and a release layer, a hard coat layer, and a receiving layer are sequentially laminated on one surface of the base material,
The base material is a stretched film of polyethylene terephthalate,
The release layer is a melamine resin;
The hard coat layer (1) is an isocyanate having three or more isocyanate groups in the molecule, (2) a polyfunctional (meth) acrylate having at least one hydroxyl group and at least two (meth) acryloyloxy groups in the molecule. Or (3) an ionizing radiation curable resin containing a urethane (meth) acrylate oligomer which is a reaction product of a polyhydric alcohol having at least two hydroxyl groups in the molecule, and polyethylene wax as a filler, and ionizing radiation An ionizing radiation curable resin cured with
The receiving layer contains a cationic urethane-based resin (binder) , a cationic fixing agent and microsilica as a filler,
The ratio of the cationic urethane-based resin, the cationic fixing agent, and the microsilica is, on a mass basis, cationic urethane-based resin: cationic fixing agent: microsilica = 100: 5 to 20: 1-10,
The receiving layer can form an image by an inkjet method,
And, when transferring to the adherend layer of the transfer object, the binder contained in the receiving layer is softened and / or melted by heat and pressure during transfer , and is in close contact with the adherend layer , The hard coat layer containing the filler is peeled and transferred and integrated at the interface with the release layer ,
The intermediate transfer recording medium, wherein the transferred material has the hard coat layer containing a filler as the outermost surface, and the measured value of pencil hardness in accordance with JIS-K-5400 is 2H or more.   2. The intermediate transfer recording medium according to claim 1, wherein a hologram layer and a transparent reflective layer are used instead of the hard coat layer.   Using the intermediate transfer recording medium according to claim 1, an image is formed on the receiving layer of the intermediate transfer recording medium by an inkjet method, and then transferred to the adherent layer of the transfer target. A transferred object, wherein the hard coat layer and the receiving layer on which an image is formed, or the receiving layer on which a hologram layer, a transparent reflection layer and an image are formed are transferred.

Images