WO2018062038A1 - 熱転写シート - Google Patents
熱転写シート Download PDFInfo
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- WO2018062038A1 WO2018062038A1 PCT/JP2017/034289 JP2017034289W WO2018062038A1 WO 2018062038 A1 WO2018062038 A1 WO 2018062038A1 JP 2017034289 W JP2017034289 W JP 2017034289W WO 2018062038 A1 WO2018062038 A1 WO 2018062038A1
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- resin
- thermal transfer
- copolymer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/385—Contact thermal transfer or sublimation processes characterised by the transferable dyes or pigments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/46—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography characterised by the light-to-heat converting means; characterised by the heat or radiation filtering or absorbing means or layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J131/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
- C09J131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09J131/04—Homopolymers or copolymers of vinyl acetate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/748—Releasability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/02—Dye diffusion thermal transfer printing (D2T2)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/30—Thermal donors, e.g. thermal ribbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
- B41M5/38214—Structural details, e.g. multilayer systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- Y10T428/24364—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.] with transparent or protective coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
Definitions
- the present invention relates to a thermal transfer sheet.
- thermal transfer images can be transferred onto the transfer target using a sublimation thermal transfer method. It is widely formed.
- an ID card used in many fields such as a digital photograph, an identification card, a driver's license, and a membership card is known.
- a thermal transfer sheet having a dye layer provided on one side of a substrate and a receiving layer provided on one side of a transfer target, for example, the other substrate.
- a thermal transfer image receiving sheet is used.
- the transfer object and the dye layer of the thermal transfer sheet are overlapped, and the thermal transfer image is transferred onto the transfer object by transferring the dye of the dye layer by applying heat from the back side of the thermal transfer sheet by the thermal head.
- a formed print can be obtained.
- the amount of dye transfer can be controlled by the amount of energy applied to the thermal transfer sheet, density gradation is possible. Therefore, the image is very clear and has transparency and halftone. A high-quality printed matter that is excellent in color reproducibility and gradation and comparable to a full-color photographic image can be formed.
- the receiving layer on which the thermal transfer image is formed is located on the outermost surface of the printed matter.
- the thermal transfer image formed on the receiving layer by the sublimation type thermal transfer method is excellent in the formation of a gradation image as described above, the formed printed matter is different from the one using ordinary printing ink, and the dye is a pigment.
- the dye since it is a relatively low molecular weight dye and no vehicle is present, it has a disadvantage of poor physical durability such as scratch resistance.
- a thermal transfer image is formed using a protective layer transfer sheet having a base layer and a protective layer (also referred to as a release layer or a transfer layer) provided so as to be peelable from the base material.
- a protective layer also referred to as a release layer or a transfer layer
- the durability of the thermal transfer image can be improved by transferring the protective layer onto the receiving layer on which the thermal transfer image is formed.
- thermal transfer in which at least one dye layer and a protective layer that can be peeled off from the base material are provided on one surface of the base material in the surface order.
- a sheet has been proposed (for example, Patent Document 3). According to the thermal transfer sheet proposed in Patent Document 3, formation of a thermal transfer image and transfer of a protective layer onto the formed thermal transfer image can be performed using one thermal transfer sheet.
- the thermal transfer sheet is usually stored and used in a wound state.
- the dye layer and the back side of the thermal transfer sheet (hereinafter referred to as the back layer) are in direct contact, so that the dye in the dye layer is likely to move to the back layer side.
- the dye contained in the dye layer moves to the back layer (so-called kick) when the thermal transfer sheet is wound.
- the protective layer transferred onto the thermal transfer image is required to have high light resistance in addition to physical durability such as scratch resistance.
- the present invention has been made in view of such a situation, and can impart sufficient scratch resistance and light resistance to the transfer layer at the same time, and the dye kicked to the back side of the thermal transfer sheet is the surface of the transfer layer. It is a main object to provide a thermal transfer sheet that can sufficiently suppress back-up.
- the present invention for solving the above-mentioned problems is a thermal transfer sheet in which a transfer layer and a dye layer are provided in a surface sequence on one surface of a substrate, and the transfer layer is protected from the substrate side.
- a layered structure in which a layer and an adhesive layer are laminated in this order, the adhesive layer contains two or more resin components, and one of the two or more resin components is a reactive ultraviolet absorber.
- a copolymer of acrylic monomer, and the copolymerization ratio of the reactive ultraviolet absorber in the copolymer of the reactive ultraviolet absorber and the acrylic monomer is 10% to 50% in molar ratio.
- the copolymerization ratio of the acrylic monomer is in the range of 50% to 90% in molar ratio, and the content of the copolymer of the reactive ultraviolet absorber and the acrylic monomer is the adhesive layer. 50 mass% or more of the total mass of 90 quality Wherein the% is in the range of less.
- the other one of the two or more resin components may be either one or both of an acrylic resin and a vinyl chloride-vinyl acetate copolymer.
- the protective layer may contain a binder resin and talc.
- the binder resin contained in the protective layer may be any of acrylic resin, polycarbonate resin, and phenoxy resin.
- the reactive ultraviolet absorber that forms a copolymer of the reactive ultraviolet absorber and an acrylic monomer may be a benzotriazole reactive ultraviolet absorber.
- the transfer layer can be provided with sufficient scratch resistance and light resistance at the same time, and the dye kicked on the back side of the thermal transfer sheet is prevented from returning to the surface of the transfer layer. be able to.
- thermo transfer sheet of one Embodiment It is a schematic sectional drawing which shows an example of the thermal transfer sheet of one Embodiment. It is a schematic sectional drawing which shows an example of the thermal transfer sheet of one Embodiment. It is process drawing which shows an example of the manufacturing method of the printed matter using the thermal transfer sheet of one Embodiment.
- thermal transfer sheet 100 according to an embodiment of the present invention (hereinafter referred to as a thermal transfer sheet according to an embodiment) will be specifically described with reference to the drawings.
- the thermal transfer sheet 100 of one embodiment is provided with a dye layer 7 and a transfer layer 10 on one surface of a substrate 1 in a surface sequence.
- a protective layer 2 and an adhesive layer 3 are laminated in this order from the substrate 1 side.
- the dye layer 7 is composed of a single layer, and in the thermal transfer sheet 100 of the form shown in FIG. 2, the dye layer 7 has a plurality of layers (dye layers 7Y, 7M, 7C). ). Each configuration will be described below.
- the base material 1 is an essential configuration in the thermal transfer sheet 100 according to one embodiment, and holds the transfer layer 10 positioned on one surface of the base material 1.
- the material of the substrate 1 is not particularly limited, but a material that can withstand heat applied when the transfer layer 10 is transferred and has mechanical characteristics that do not hinder handling is preferable.
- Examples of such a substrate 1 include polyesters such as polyethylene terephthalate and polyethylene naphthalate, polyarylate, polycarbonate, polyurethane, polyimide, polyetherimide, cellulose derivatives, polyethylene, ethylene-vinyl acetate copolymer, polypropylene, and polystyrene.
- Acrylic polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyvinyl butyral, nylon, polyether ether ketone, polysulfone, polyether sulfone, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, polyvinyl fluoride, tetrafluoroethylene ⁇ Ethylene, tetrafluoroethylene-hexafluoropropylene copolymer, polychlorotrifluoroethylene, polybiethylene It can include various plastic films or sheets such as benzylidene fluoride. Each of these materials can be used alone, but may be used as a laminate in combination with other materials.
- the thickness of the substrate 1 can be appropriately set according to the material so that the strength and heat resistance thereof are appropriate, preferably in the range of 0.5 ⁇ m to 50 ⁇ m, and more preferably in the range of 1 ⁇ m to 20 ⁇ m.
- the range of 1 ⁇ m or more and 10 ⁇ m or less is particularly preferable.
- SRa center average roughness
- SPc peak count
- SRm maximum protrusion height
- the transfer layer 10 can be transferred by embossing the surface of the transfer layer 10 facing the base material 1 with the smooth surface of the base material 1.
- the peeling interface of the transfer layer 10, that is, the surface of the transfer layer 10 after transfer can be made smooth.
- the smoothness of the surface of the transfer layer 10 is closely related to the glossiness of the transfer layer 10, and the glossiness of the transferred transfer layer 10 is improved by increasing the smoothness of the surface of the transfer layer 10. Can be improved.
- the surface layer of the transfer layer 10 is scratched by improving the glossiness of the transfer layer 10, the generated scratch becomes conspicuous. Scratch resistance is enhanced by the protective layer 2 provided in the layer 10, and no such consideration is required.
- a transfer layer 10 is provided on one surface of the base material 1 (in the illustrated form, the top surface of the base material 1).
- the transfer layer 10 has a laminated structure in which the protective layer 2 and the adhesive layer 3 are laminated in this order from the substrate 1 side.
- the protective layer 2 constituting the transfer layer 10 is a layer for imparting scratch resistance to the printed material to which the transfer layer 10 has been transferred.
- the binder resin contained in the protective layer 2 is not particularly limited.
- the protective layer 2 may contain 1 type as binder resin, and may contain 2 or more types.
- the protective layer 2 in a preferred form contains at least one selected from the group of acrylic resins, polycarbonate resins, and phenoxy resins as a binder resin.
- the protective layer 2 in a more preferable form contains an acrylic resin as a binder resin. According to the protective layer containing any one of an acrylic resin, a polycarbonate resin, and a phenoxy resin as the binder resin, the scratch resistance can be further improved.
- the acrylic resin referred to in the present specification is a polymer of acrylic acid or methacrylic acid, or a derivative thereof, an acrylic acid ester, or a polymer of methacrylic acid ester, or a derivative thereof, acrylic acid, or methacrylic acid and other monomers. Or a derivative thereof, an acrylic ester, a copolymer of a methacrylic ester and another monomer, or a derivative thereof.
- acrylic acid esters and methacrylic acid esters include alkyl acrylates and alkyl methacrylates. Specifically, methyl acrylate (methyl acrylate), methyl methacrylate (methyl methacrylate), ethyl acrylate (ethyl acrylate), ethyl methacrylate (ethyl methacrylate), butyl acrylate (butyl acrylate), butyl methacrylate (methacrylic acid) Butyl), lauryl acrylate, lauryl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxybutyl acrylate, 2-hydroxybutyl methacrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-hydroxy-3-phenoxy And propyl methacrylate.
- Examples of other monomers include aromatic hydrocarbons, aryl group-containing compounds, amide group-containing compounds, and vinyl chloride, styrene, benzylstyrene, phenoxyethyl methacrylate, acrylamide, and methacrylamide.
- acrylic resin one or more of alkyl acrylate esters, 2-hydroxyethyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 2-hydroxy-3-phenoxypropyl (meth) acrylate Acrylic obtained by copolymerizing one or more of (meth) acrylic acid ester having a hydroxyl group in the molecule, and one or more other polymerizable monomers such as styrene if necessary
- a polyol resin or the like can also be used.
- the phenoxy resin referred to in the present specification means a thermoplastic resin having a hydroxyl group in a molecular chain obtained by a condensation reaction of various bisphenol compounds and epichlorohydrin.
- polycarbonate resin referred to in the present specification means a resin composition whose main component is polycarbonate.
- Polycarbonate resins include those produced from bisphenol A synthesized from bisphenol and acetone by interfacial polymerization, transesterification, pyridine, etc., bisphenol A and dicarboxylic acid derivatives such as tele (iso) phthalic acid dichloride, etc. Polyester carbonate obtained by copolymerization with bisphenol A, derivatives of bisphenol A, such as those obtained by polymerization of tetramethylbisphenol A and the like.
- binder resin Although there is no limitation in particular about content of binder resin, it is preferable to exist in the range of 50 mass% or more and 98 mass% or less with respect to the solid content total mass of the protective layer 2, The range of 70 mass% or more and 98 mass% or less It is more preferable that it is within the range of 90% by mass or more and 98% by mass or less.
- the protective layer 2 in a preferred form contains talc together with the binder resin
- the protective layer 2 in a particularly preferred form contains any of an acrylic resin, a phenoxy resin, and a polycarbonate resin and talc. ing.
- the protective layer 2 containing talc together with the binder resin higher scratch resistance can be imparted to the protective layer 2.
- higher scratch resistance can be imparted to the printed matter obtained by transferring the protective layer 2.
- the protective layer 2 preferably contains talc having a specific surface area of 10 m 2 / g or less together with the binder resin. According to the protective layer 2 containing talc having a specific surface area of 10 m 2 / g or less together with the binder resin, it is possible to impart extremely high scratch resistance to the printed matter obtained by transferring the protective layer 2. it can.
- the content of talc is not particularly limited, but is preferably in the range of 2% by mass to 10% by mass with respect to the total mass of the protective layer 2. According to the protective layer 2 containing talc in a preferable range, the scratch resistance can be further improved as compared with the protective layer 2 containing talc outside this range.
- the protective layer 2 is made of additives other than those exemplified above, for example, various types of silicone oil oil, polyethylene wax, zinc stearate, zinc stearyl phosphate, calcium stearate, magnesium stearate and other metal soaps, fatty acid amides , Polyethylene wax, carnauba wax, paraffin wax and other mold release agents, benzophenone, benzotriazole, benzoate, triazine, titanium oxide, zinc oxide and other known UV absorbers, hindered amines, Ni chelates, etc. It may contain stabilizers, hindered phenol-based, sulfur-based, phosphorus-based, lactone-based antioxidants, and the like.
- the protective layer 2 may contain 1 type independently as an additive, and may contain 2 or more types.
- the method for forming the protective layer 2 is not particularly limited, and a binder resin, talc added as necessary, and a protective layer coating solution in which various additives are dissolved or dispersed in an appropriate solvent,
- This coating solution can be formed by coating and drying on one surface of the substrate 1 or a layer arbitrarily provided on one surface of the substrate 1.
- the coating method include a gravure printing method, a screen printing method, a reverse coating method using a gravure plate, and the like.
- the coating method other than this can also be used. This is the same also about the coating method of the various coating liquid mentioned later.
- the thickness of the protective layer 2 Preferably, it exists in the range of 0.5 micrometer or more and 10 micrometers or less.
- an adhesive layer 3 is provided on the protective layer 2 directly or indirectly via another layer.
- the adhesive layer 3 is an essential component in the thermal transfer sheet 100 of one embodiment, and is a layer that constitutes the transfer layer 10. That is, it is a layer that moves together with the protective layer 2 on the other side, for example, the receiving layer of the thermal transfer image receiving sheet on which the thermal transfer image is formed.
- the thermal transfer sheet 100 is provided with high back-preventing property capable of suppressing back that may occur when the thermal transfer sheet 100 is wound and stored, and high light resistance to the printed matter on which the transfer layer 10 is transferred.
- the condition is that the adhesive layer 3 constituting the transfer layer 10 has the following (feature 1) to (feature 3).
- the thermal transfer sheet 100 of one embodiment having this feature it is possible to simultaneously impart high back prevention and high light resistance to the adhesive layer 3. Therefore, according to the thermal transfer sheet 100 of one embodiment, sufficient scratch resistance can be obtained on a print obtained by transferring the transfer layer 10 due to the scratch resistance of the protective layer 2 and the light resistance of the adhesive layer 3. And light resistance can be imparted.
- the thermal transfer sheet that has been wound and stored is rolled back, the dye transferred (kicked) to the back side of the thermal transfer sheet is transferred to the surface (adhesive layer) of the transfer layer. Re-migration (back) can be sufficiently suppressed.
- the adhesive layer contains two or more types of resin components, one of which is a copolymer of a reactive ultraviolet absorber and an acrylic monomer.
- the copolymerization ratio of the reactive UV absorber in the copolymer of the reactive UV absorber and the acrylic monomer is in the range of 10% to 50% in terms of molar ratio, and the copolymerization ratio of the acrylic monomer. Is a range of 50% to 90% in terms of molar ratio.
- the content of the copolymer of the reactive ultraviolet absorber and the acrylic monomer is in the range of 50% by mass to 90% by mass with respect to the total mass of the adhesive layer.
- a copolymer of a reactive ultraviolet absorber and an acrylic monomer wherein the copolymerization ratio of the reactive ultraviolet absorber is 10% or more and 50% or less, and the copolymerization ratio of the acrylic monomer is a molar ratio.
- the copolymer of 50% or more and 90% or less is sometimes referred to as a “specific copolymer”.
- the adhesive layer 3 satisfies all of the above (Feature 1) to (Feature 3).
- the adhesive layer is any one of the above features. When not satisfy
- the adhesive layer does not contain a “specific copolymer”, sufficient light resistance cannot be imparted to the adhesive layer 3. Moreover, even when the adhesive layer contains a “specific copolymer”, if the content is less than 50 mass%, sufficient light resistance can be imparted to the adhesive layer. Can not. In particular, when a resin other than an acrylic resin is employed as the other resin component described later, sufficient light resistance cannot be imparted to the adhesive layer, and sufficient back-preventing property is imparted to the adhesive layer. Can not do it. Moreover, when the content exceeds 90% by mass, even if the adhesive layer contains a “specific copolymer” resin and another resin described later, the adhesive layer is sufficient. Scratch resistance and anti-back property cannot be imparted.
- the adhesive layer contains a copolymer of a reactive ultraviolet absorber and an acrylic monomer and satisfies the above (Feature 1) and (Feature 3), the reactive type in this copolymer
- the copolymerization ratio of the ultraviolet absorber is less than 10%, sufficient light resistance cannot be imparted to the adhesive layer.
- the copolymerization ratio of the reactive ultraviolet absorber exceeds 50%, it becomes difficult to impart sufficient back prevention and scratch resistance to the adhesive layer.
- the copolymerization ratio of the reactive ultraviolet absorber exceeds 50%, the compatibility of the ink for forming the adhesive layer is lowered, and the glossiness of the adhesive layer is likely to be lowered.
- the compatibility tends to be significantly reduced.
- the copolymerization ratio of the acrylic monomer exceeds 90%, the copolymerization ratio of the reactive ultraviolet absorber is reduced correspondingly, and it becomes difficult to impart sufficient light resistance to the adhesive layer.
- the copolymerization ratio of the acrylic monomer is less than 50%, it is difficult to impart sufficient back prevention and scratch resistance to the adhesive layer.
- the adhesive layer 3 in a preferred form has a copolymerization ratio of the reactive ultraviolet absorber in the “specific copolymer” in the range of 15% to 45%, particularly 20% to 40% in terms of the molar ratio.
- the copolymerization ratio of the monomer is 55% to 85%, particularly 60% to 80% in terms of molar ratio.
- the adhesive layer contains a copolymer of a reactive ultraviolet absorber and another monomer different from the acrylic monomer in place of the “specific copolymer”.
- the reactive ultraviolet It is a case where the copolymerization ratio with other monomers different from the absorbent and the acrylic monomer, and the content of this copolymer satisfy the ranges defined in (Feature 2) and (Feature 3) above. However, it is impossible to satisfy all of the anti-back property, scratch resistance and glossiness at the same time.
- the adhesive layer contains a copolymer of an acrylic monomer and a component different from the reactive UV absorber instead of the “specific copolymer”, the reactive UV absorber Even when the component different from the agent, the copolymerization ratio of the acrylic monomer, and the content of this copolymer satisfy the ranges defined in (Feature 2) and (Feature 3) above, the adhesive layer Cannot provide sufficient light resistance.
- reactive ultraviolet absorber forming the “specific copolymer”, and a conventionally known reactive ultraviolet absorber can be appropriately selected and used.
- reactive UV absorbers include non-reactive UV absorbers such as salicylates, benzophenones, benzotriazoles, triazines, substituted acrylonitriles, nickel chelates, and hindered amines, which are conventionally known UV absorbers.
- the agent include addition polymerizable double bonds such as vinyl group, acryloyl group, and methacryloyl group, or alcoholic hydroxyl group, amino group, carboxyl group, epoxy group, isocyanate group, and the like.
- the benzotriazole-based reactive ultraviolet absorber is a “specific copolymer” that is a copolymer of the benzotriazole-based reactive ultraviolet absorber and an acrylic monomer. It can be said that it is a preferable reactive ultraviolet absorber in that a higher light resistance can be imparted to the adhesive layer containing.
- acrylic monomer constituting the “specific copolymer” a monomer constituting the acrylic resin can be appropriately selected and used.
- an acryl-type monomer acrylic acid, methacrylic acid, acrylic ester, methacrylic ester, etc. which were demonstrated by the said protective layer 2 can be mentioned.
- the adhesive layer 3 in a preferable form is a “specific copolymer” comprising a copolymer of a reactive ultraviolet absorber and any one or both of methyl methacrylate (MMA) and methacrylic acid (MAA). Contains.
- the “specific copolymer” may be a copolymer obtained by further copolymerizing another polymerization component.
- examples of other copolymer components include styrene monomers.
- a hindered amine light stabilizer (HALS) effective for radical scavenging, an antioxidant and the like may be further copolymerized.
- HALS hindered amine light stabilizer
- a phenolic antioxidant having a regenerating action of a hindered amine type light stabilizer (HALS) is preferable.
- the copolymerization ratio of other polymerization components in the “specific copolymer” may be 40% or less, preferably 20% or less in terms of molar ratio.
- the thermal transfer sheet 100 of one embodiment is characterized in that the adhesive layer 3 contains two or more kinds of resin components, and one kind thereof is a “specific copolymer”. According to the adhesive layer 3 containing another resin component together with the “specific copolymer”, the adhesive layer 3 can be provided with high back-preventing property and high light resistance at the same time.
- other resin components other than the “specific copolymer” will be described.
- the adhesive layer 3 may contain 1 type as another resin component, and may contain 2 or more types.
- the adhesive layer 3 in a preferable form contains, together with the “specific copolymer”, one or both of an acrylic resin and a vinyl chloride-vinyl acetate copolymer as other resin components. According to the adhesive layer 3 of a preferable form, the glossiness of the transfer layer 10 can be further improved.
- the adhesive layer 3 containing an acrylic resin as another resin component together with the “specific copolymer” is a preferred resin in that the back-preventing property is particularly good compared to other resin components. It is an ingredient.
- the acrylic resin as the other resin component the acrylic resin described in the protective layer 2 can be appropriately selected and used.
- the particularly preferred adhesive layer 3 contains, as another resin component, polymethyl methacrylate (PMMA) having a glass transition temperature (Tg) of 90 ° C. or higher and a weight average molecular weight (Mw) of 10,000 to 50,000. ing.
- the glass transition temperature (Tg) referred to in the present specification means a temperature determined by DSC (Differential Scanning Calorimetry) based on JIS-K-7121 (2012), and the weight average molecular weight (Mw) Means a polystyrene equivalent value measured by gel permeation chromatography (GPC) in accordance with JIS-K-7252-1 (2008).
- the content of the other resin component is not particularly limited, but in consideration of the compatibility of the ink including the “specific copolymer” and the other resin component, anti-back property, etc., the “specific copolymer” ”And the total mass of the other resin components, the total mass of the other resin components is preferably 10% by mass to 50% by mass, more preferably 15% by mass to 45% by mass, The range of mass% or more and 40 mass% or less is more preferable. In other words, the total mass of the “specific copolymer” with respect to the total mass of the “specific copolymer” and other resin components is preferably 50% by mass or more and 90% by mass or less, and 55% by mass.
- the adhesive layer 3 in a preferred form has, as another resin component, 10% by mass or more of either one or both of an acrylic resin and a vinyl chloride-vinyl acetate copolymer with respect to the total mass of the adhesive layer 3. It is contained in an amount of 50% by mass or less, further 15% by mass or more and 45% by mass or less, particularly 20% by mass or more and 40% by mass or less (when both are included, the total mass).
- the adhesive layer 3 in a more preferable form contains an acrylic resin in the above preferable range with respect to the total mass of the adhesive layer 3.
- the adhesive layer 3 in a preferable form contains “a specific copolymer” and one or both of polymethyl methacrylate (PMMA) and polymethacrylic acid (PMAA).
- the copolymerization ratio of the reactive UV absorber in the “copolymer” is in the range of 15% to 45%, particularly 20% to 40% in molar ratio, and the copolymerization ratio of the acrylic monomer in molar ratio. The range is from 55% to 85%, particularly from 60% to 80%.
- the content of the “specific copolymer” is 50% by mass or more and 90% by mass or less, further 55% by mass or more and 85% by mass or less, particularly 60% by mass or more and 80% by mass with respect to the total mass of the adhesive layer 3.
- the content of either one or both of polymethyl methacrylate (PMMA) and polymethacrylic acid (PMAA) with respect to the total mass of the adhesive layer 3 (the total content when both are included) is It is 10 mass% or more and 50 mass% or less, Furthermore, 15 mass% or more and 45 mass% or less, Especially 20 mass% or more and 40 mass% or less are the range.
- the adhesive layer 3 may contain an ultraviolet absorber together with the “specific copolymer” and other resin components. According to the adhesive layer 3 containing an ultraviolet absorber, the light resistance can be further improved. In addition, when the adhesive layer containing a reactive ultraviolet absorber and the other resin component is used instead of the “specific copolymer”, sufficient light resistance can be imparted to the adhesive layer. Can not.
- the reactive UV absorbers that form the above-mentioned "specific copolymer” include salicylates, benzophenones, benzotriazoles, triazines, substituted acrylonitriles, nickel chelates, Non-reactive UV absorbers such as hindered amines can be mentioned.
- the content of the ultraviolet absorber is preferably 10% by mass or less, and more preferably 5% by mass or less, based on the total mass of the adhesive layer.
- a coating solution can be prepared, and this coating solution can be formed by applying and drying on the protective layer 2 or a layer arbitrarily provided on the protective layer 2.
- the thickness of the contact bonding layer 3 it is preferable to exist in the range of 0.4 micrometer or more and 2 micrometers or less, and it is more preferable to exist in the range of 0.8 micrometer or more and 2 micrometers or less.
- the transfer layer 10 having a two-layer structure in which the protective layer 2 and the adhesive layer 3 are laminated in this order from the base material 1 side has been described, but between the protective layer 2 and the adhesive layer 3.
- Other optional layers can also be provided.
- the protective layer 2 and the adhesive layer 3 provide the transfer layer 10 with both sufficient light resistance and scratch resistance. It is not particularly necessary to provide any other layer between the two.
- a release layer (not shown) can also be provided between the substrate 1 and the transfer layer 10. By providing the release layer, it is possible to expect an improvement in the peelability of the transfer layer 10 from the substrate 1 when the transfer layer 10 is transferred.
- the release layer is a layer that does not constitute the transfer layer 10 and is an arbitrary configuration in the thermal transfer sheet 100 of one embodiment.
- the components contained in the release layer there are no particular limitations on the components contained in the release layer, and any of the conventionally known resins having excellent release properties can be used.
- These release resins can be used alone or as a mixture.
- the release layer can be formed by using a resin such as an isocyanate compound and a catalyst such as a tin catalyst and an aluminum catalyst in addition to a resin having excellent release properties.
- the thickness of the release layer is generally in the range of 0.5 ⁇ m to 5 ⁇ m.
- a dye layer 7 is provided on one surface of the substrate 1 in the surface order with the transfer layer 10 described above.
- a thermal transfer sheet 100 in the form shown in FIG. 1 is provided with a single dye layer 7 on one surface of the substrate 1, and the thermal transfer sheet in the form shown in FIG.
- a plurality of dye layers are provided in the surface order.
- Examples of the structure in which a plurality of dye layers are provided in the surface order include a structure in which a yellow dye layer, a magenta dye layer, a cyan dye layer, and a black dye layer, if necessary, are provided in the field order. .
- the dye layer 7 contains a binder resin and a sublimable dye.
- the binder resin contained in the dye layer 7 is not particularly limited, and conventionally known binder resins can be appropriately selected and used in the field of the dye layer.
- the binder resin for the dye layer 7 include cellulose resins such as ethyl cellulose resin, hydroxyethyl cellulose resin, ethyl hydroxy cellulose resin, methyl cellulose resin, and cellulose acetate resin, polyvinyl alcohol resin, polyvinyl acetate resin, polyvinyl butyral resin, and polyvinyl acetal. Examples thereof include resins, vinyl resins such as polyvinyl pyrrolidone, acrylic resins such as poly (meth) acrylate and poly (meth) acrylamide, polyurethane resins, polyamide resins, and polyester resins.
- the content of the binder resin is not particularly limited, but it is preferably 20% by mass or more based on the total mass of the dye layer 7.
- a sublimable dye can fully be hold
- the sublimable dye contained in the dye layer 7 is not particularly limited, but a dye having a sufficient color density and not discolored by light, heat, temperature, or the like is preferable.
- dyes diarylmethane dyes, triarylmethane dyes, thiazole dyes, merocyanine dyes, pyrazolone dyes, methine dyes, indoaniline dyes, acetophenone azomethine, pyrazoloazomethine, imidazolazomethine, imidazoazomethine, pyridone azomethine Azomethine dyes, xanthene dyes, oxazine dyes, cyanostyrene dyes such as dicyanostyrene and tricyanostyrene, thiazine dyes, azine dyes, acridine dyes, benzeneazo dyes, pyridoneazo, thiophenazo, isothiazole Azo, pyrrole
- red dyes such as MSRedG (Mitsui Toatsu Chemical Co., Ltd.), Macrolex Red Violet R (Bayer), Ceres Red 7B (Bayer), Samalon Red F3BS (Mitsubishi Chemical Corporation), etc.
- Holon Brilliant Yellow dyes such as Yellow 6GL (Clariant), PTY-52 (Mitsubishi Chemical Corporation), Macrolex Yellow 6G (Bayer), Kayaset (registered trademark) Blue 714 (Nippon Kayaku Co., Ltd.), Holon Brilliant Blue SR (Clariant), MS Blue 100 (Mitsui Toatsu Chemicals), C.I. I. And blue dyes such as Solvent Blue 63.
- the content of the sublimable dye is preferably in the range of 50% by mass to 350% by mass, and more preferably in the range of 80% by mass to 300% by mass with respect to the total mass of the binder resin.
- the thermal transfer sheet 100 includes a dye layer and a transfer layer, and the sublimation dye kicked to the back side is a thermal transfer sheet in a form that easily migrates to the surface of the transfer layer.
- the thermal transfer sheet 100 according to the embodiment is provided with sufficient back-preventing property to the adhesive layer 3 constituting the transfer layer 10, the sublimation dye kicked to the back side is transferred to the transfer layer 10. Can be sufficiently suppressed.
- a dye primer layer (not shown) can be provided between the substrate 1 and the dye layer 7.
- the components contained in the dye primer layer are not particularly limited.
- the dye primer layer may contain colloidal inorganic pigment ultrafine particles.
- colloidal inorganic pigment ultrafine particles include silica (colloidal silica), alumina or alumina hydrate (alumina sol, colloidal alumina, cationic aluminum oxide or hydrate, pseudoboehmite, etc.), aluminum silicate, silicic acid, and the like. Examples thereof include magnesium, magnesium carbonate, magnesium oxide, and titanium oxide.
- colloidal silica and alumina sol are preferably used.
- These colloidal inorganic pigment ultrafine particles have a primary average particle size of 100 nm or less, preferably 50 nm or less.
- a back layer (not shown) may be provided on the other surface of the substrate 1 for improving the running performance of the thermal head when the transfer layer 10 is transferred.
- a back surface layer is the arbitrary structures in the thermal transfer sheet of one Embodiment.
- the back layer can be formed by appropriately selecting a conventionally known thermoplastic resin or the like.
- thermoplastic resins include polyester resins, polyacrylate resins, polyvinyl acetate resins, acrylic-styrene copolymers, polyurethane resins, polyethylene resins, and polypropylene resins.
- polyvinyl acetal resins such as acetoacetal resins, and silicone-modified products thereof.
- a polyamideimide resin or a modified silicone product thereof can be preferably used.
- These resins may be cured by a curing agent.
- the curing agent include an isocyanate curing agent.
- the back layer has a wax, a higher fatty acid amide, a phosphoric ester compound, a metal soap, a silicone oil, a surfactant release agent, etc., a fluororesin for the purpose of improving slip properties.
- various additives such as organic particles such as silica, clay, talc, calcium carbonate and the like are contained, and it is particularly preferable that at least one kind of phosphate ester or metal soap is contained. .
- the back layer is prepared by, for example, preparing a coating solution for the back layer in which the thermoplastic resin and various additives added as necessary are dispersed or dissolved in an appropriate solvent. It can be formed by coating and drying on the other surface.
- the thickness of the back layer is preferably in the range of 0.1 ⁇ m to 5 ⁇ m, more preferably in the range of 0.3 ⁇ m to 2 ⁇ m, from the viewpoint of improving heat resistance and the like.
- the method for manufacturing a printed matter includes a thermal transfer image forming step and a transfer layer transfer step.
- a medium having a dye-receptive receiving layer for example, a thermal transfer image-receiving sheet 200 provided with a receiving layer 151 on one surface of a substrate 150, and the thermal transfer sheet 100 of one embodiment are used.
- the sublimation dye contained in the dye layer 7 is diffused and transferred to the receiving layer 151 to form the thermal transfer image 160 using the combination and sublimation thermal transfer system as shown in FIG.
- the thermal transfer image receiving sheet 200 on which the thermal transfer image 160 is formed and the thermal transfer sheet 100 of one embodiment are combined, and the transfer layer 10 is formed on the thermal transfer image 160 using a thermal melting type thermal transfer system. This is a transfer process.
- a printed product 300 is obtained in which the transfer layer 10 is transferred onto the thermal transfer image 160 formed on the receiving layer 151 of the thermal transfer image receiving sheet 200.
- the sublimation thermal transfer method is a method in which a heating device such as a thermal head is brought into contact with the back side of the thermal transfer sheet, energy corresponding to image information is applied to the back side of the thermal transfer sheet with the heating device, and
- This is an image forming system in which a sublimation dye contained in the dye layer 7 of the thermal transfer sheet 100 of the embodiment is diffused and transferred to form a thermal transfer image 160.
- energy is applied to the back side of the thermal transfer sheet by a heating device such as a thermal head, and the transfer layer 10 corresponding to the applied region is melted and softened.
- the image is transferred onto the receiving layer 151 on which the thermal transfer image is formed.
- the transfer of the transfer layer 10 by the hot-melt type thermal transfer method can be performed by using, for example, a hot stamp method, a heat roll method, or the like in addition to a heating device such as a thermal head.
- the formation of the thermal transfer image 160 is not limited to the thermal transfer image receiving sheet as long as it is a medium capable of receiving a sublimation dye, and may be any type.
- the ratio of the copolymer means a copolymerization ratio (molar ratio).
- methyl methacrylate is abbreviated as MMA
- polymethyl methacrylate as PMMA
- polymethacrylic acid as PMAA
- styrene as St.
- the glass transition temperature is abbreviated as Tg and the weight average molecular weight is abbreviated as Mw.
- the reactive ultraviolet absorber (1) constituting the reactive ultraviolet absorber-acrylic monomer copolymer a reactive ultraviolet absorber (RUVA-93 Otsuka Chemical Co., Ltd.) is used, and the reactive ultraviolet absorber is used.
- the reactive ultraviolet absorber represented by the following structural formula (1) is used as the agent (2), and the reactive ultraviolet absorber represented by the following structural formula (2) is used as the reactive ultraviolet absorber (3).
- the reactive ultraviolet absorber (1) is a benzotriazole-based reactive ultraviolet absorber
- the reactive ultraviolet absorber (2) is a benzophenone-based reactive ultraviolet absorber
- the reactive ultraviolet absorber (3 ) Is a triazine reactive ultraviolet absorber.
- Base material 1 Polyethylene terephthalate film (4.5 ⁇ m Toray Industries, Inc.) (SRa ⁇ 20 nm, SPc ⁇ 100, SRm ⁇ 1100 nm)
- Base material 2 Polyethylene terephthalate film (4.5 ⁇ m Toray Industries, Inc.) (20 nm ⁇ SRa ⁇ 40 nm, 100 ⁇ SPc ⁇ 200, 1100 nm ⁇ SRm ⁇ 2000 nm)
- ⁇ Coating liquid 4 for protective layer > ⁇ 97 parts of phenoxy resin (PKHB InChem) ⁇ Talc 3 parts (Microace (registered trademark) P-3 Nippon Talc Co., Ltd.) ⁇ Dispersant 2 parts (DISPERBYK 180 BYK) ⁇ Methyl ethyl ketone 240 parts ⁇ Normal propyl acetate 60 parts
- Reactive UV absorber (1) -MMA-St copolymer (ratio 30:50:20) 63 parts (Tg: 90 ° C., Mw: 20000-40000) ⁇ PMMA 27 parts (Dianar (registered trademark) BR-83 Mitsubishi Chemical Corporation) ⁇ 10 parts of UV absorber (Tinuvin928 BASF Japan) ⁇ Methyl ethyl ketone 240 parts ⁇ Normal propyl acetate 60 parts
- ⁇ Coating liquid 12 for adhesive layer > -63 parts of reactive ultraviolet absorber (2) -MMA copolymer (ratio 30:70) (Tg: 90 ° C., Mw: 20000-40000) ⁇ PMMA 27 parts (Dianar (registered trademark) BR-83 Mitsubishi Chemical Corporation) ⁇ 10 parts of UV absorber (Tinuvin928 BASF Japan) ⁇ Methyl ethyl ketone 240 parts ⁇ Normal propyl acetate 60 parts
- ⁇ Back layer coating liquid> Polyvinyl acetal (hydroxyl value: 12% by mass) 47.6 parts (ESREC (registered trademark) KS-1 Sekisui Chemical Co., Ltd.) Polyisocyanate (NCO 17.3% by mass) 15 parts (Bernock (registered trademark) D750 DIC Corporation) ⁇ Silicon resin fine particles (average particle size: 4 ⁇ m, polygonal shape) 1 part (Tospearl 240 Momentive Performance Materials Japan GK) ⁇ Zinc Stearyl Phosphate 12 parts (LBT-1830 Purification Sakai Chemical Industry Co., Ltd.) ⁇ Zinc stearate 12 parts (SZ-PF Sakai Chemical Industry Co., Ltd.) -Polyethylene wax 3.5 parts (Polywax 3000 Toyo Petrolite Co., Ltd.) ⁇ Ethoxylated alcohol-modified wax 8.5 parts (Unitox 750 Toyo Adre Co., Ltd.) Methyl ethyl ketone 200
- Example 1 A protective layer was formed by applying and drying the protective layer coating liquid 1 having the above composition on one surface of the substrate 1 so as to have a dry thickness of 1 ⁇ m. Next, the adhesive layer coating solution 1 having the above composition was applied and dried on the protective layer so that the thickness when dried was 1 ⁇ m, thereby forming an adhesive layer. Also, by applying and drying the back layer coating liquid having the above composition on the other surface of the base material so that the dry thickness is 0.5 ⁇ m to form a back layer, one side of the base material In addition, a transfer layer in which a protective layer and an adhesive layer were laminated in this order was provided, and a thermal transfer sheet of Example 1 was obtained in which a back layer was provided on the other surface of the substrate. For convenience of storage stability evaluation described later, the thermal transfer sheet of Example 1 has a configuration in which no color material layer is provided on the same surface as the transfer layer of the substrate. The same applies to the thermal transfer sheets of Examples and Comparative Examples.
- Examples 2 to 17, Comparative Examples 1 to 6 Except for changing the base material 1, protective layer coating liquid 1, and adhesive layer coating liquid 1 in Example 1 to the base material, protective layer coating liquid, and adhesive layer coating liquid shown in Table 1 below. Were used in the same manner as in Example 1 to obtain thermal transfer sheets of Examples 2 to 17 and Comparative Examples 1 to 6.
- the thermal transfer sheet of Comparative Example 6 has a configuration in which an adhesive layer is provided on one surface of the base material and a back layer is provided on the other surface of the base material. Further, hereinafter, a laminate of the protective layer and the adhesive layer is referred to as a transfer layer (in Comparative Example 6, the adhesive layer is referred to as a transfer layer).
- NG Life expectancy is less than 1 year.
- a constant load compression tester Toyo Seiki Seisakusho Co., Ltd.
- the thermal transfer sheets of Examples and Comparative Examples in which the dye was re-transferred (backed), and genuine image-receiving paper of a sublimation type thermal transfer printer (DS40 Dai Nippon Printing Co., Ltd.), Examples and Comparative Examples The heat transfer sheet of the sheet is superposed so that the image receiving surface of the genuine image receiving paper is opposed to each other, and using a laminating tester (Lamipacker LPD2305PRO Fuji Plastic Co., Ltd.), a processing temperature of 110 ° C. and a processing speed of 1 m / min. Then, the transfer layer of the genuine image receiving paper was transferred to obtain a transfer product of each example and comparative example.
- the hues of the transcripts of each Example and Comparative Example were measured using Spectrolino (X-Rite) (D65 light source, viewing angle 2 °) and evaluated based on the following criteria. The evaluation results are shown in Table 2.
- NG The color difference ⁇ E * between the transfer product obtained by transferring the unstored transfer layer and the transfer product obtained by transferring the back transfer layer is 3.2 or more.
- the transfer layer (adhesive layer + protective layer (adhesive layer in Comparative Example 6)) is transferred to the black solid area and the white solid area by the same printer.
- the prints of Examples and Comparative Examples were obtained.
- the glossiness of the black solid area where the transfer layer was transferred and the white solid area where the transfer layer was transferred was measured using a gloss meter VG7000 (Nippon Denshoku Co., Ltd.). The glossiness was evaluated according to the following evaluation criteria, and the evaluation results are shown in Table 2.
- A The glossiness of the black solid area is 60% or more, and the glossiness of the white solid area is 55% or more.
- B The glossiness of the black solid region is 50% or more and less than 60%, or the glossiness of the white solid region is 45% or more and less than 55% (except when satisfying the following “C” and “D”).
- C The glossiness of the black solid region is 40% or more and less than 50%, or the glossiness of the white solid region is 35% or more and less than 45% (except when the following “D” is satisfied).
- NG The glossiness of the black solid area is less than 40%, or the glossiness of the white solid area is less than 35%.
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Abstract
Description
以下に、本発明の一実施形態の熱転写シート100(以下、一実施形態の熱転写シートと言う)について図面を用いて具体的に説明する。
基材1は、一実施形態の熱転写シート100における必須の構成であり、基材1の一方の面上に位置する転写層10を保持している。基材1の材料について特に限定はないが、転写層10を転写する際に加えられる熱に耐え、取り扱い上支障のない機械的特性を有するものが好ましい。このような基材1としては、例えば、ポリエチレンテレフタレート、ポリエチレンナフタレート等のポリエステル、ポリアリレート、ポリカーボネート、ポリウレタン、ポリイミド、ポリエーテルイミド、セルロース誘導体、ポリエチレン、エチレン-酢酸ビニル共重合体、ポリプロピレン、ポリスチレン、アクリル、ポリ塩化ビニル、ポリ塩化ビニリデン、ポリビニルアルコール、ポリビニルブチラール、ナイロン、ポリエーテルエーテルケトン、ポリサルフォン、ポリエーテルサルフォン、テトラフルオロエチレン-パーフルオロアルキルビニルエーテル共重合体、ポリビニルフルオライド、テトラフルオロエチレン・エチレン、テトラフルオロエチレン-ヘキサフルオロプロピレン共重合体、ポリクロロトリフルオロエチレン、ポリビニリデンフルオライド等の各種プラスチックフィルムまたはシートを挙げることができる。これらの材料はそれぞれ単独でも使用できるが、他の材料と組合せた積層体として使用してもよい。基材1の厚さは、その強度及び耐熱性が適切になるように材料に応じて適宜設定することができ、0.5μm以上50μm以下の範囲が好ましく、1μm以上20μm以下の範囲がより好ましく、1μm以上10μm以下の範囲が特に好ましい。
図1、図2に示すように、基材1の一方の面上(図示する形態では、基材1の上面)には、転写層10が設けられている。転写層10は、基材1側から保護層2、接着層3がこの順で積層されてなる積層構成を呈している。
転写層10を構成する保護層2は、転写層10が転写された印画物に耐擦過性を付与するための層である。
図1、図2に示すように保護層2上には、直接的に、或いは他の層を介して間接的に接着層3が設けられている。接着層3は、一実施形態の熱転写シート100における必須の構成であり、転写層10を構成する層である。つまり、保護層2とともに相手側、例えば、熱転写画像が形成された熱転写受像シートの受容層上に移行する層である。
(特徴2)反応型紫外線吸収剤とアクリル系モノマーとの共重合体における反応型紫外線吸収剤の共重合比率がモル比で10%以上50%以下の範囲であり、アクリル系モノマーの共重合比率がモル比で50%以上90%以下の範囲である点。
(特徴3)反応型紫外線吸収剤とアクリル系モノマーとの共重合体の含有量が、接着層の総質量に対し50質量%以上90質量%以下の範囲である点。
「特定の共重合体」とともに、接着層3に含有されている他の樹脂成分について特に限定はなく、例えば、アクリル系樹脂、塩化ビニル-酢酸ビニル共重合体、エポキシ樹脂、ポリエステル樹脂、ポリカーボネート樹脂、ブチラール樹脂、ポリアミド樹脂、塩化ビニル樹脂などを挙げることができる。接着層3は、他の樹脂成分として、1種を含有していてもよく、2種以上を含有していてもよい。
また、基材1と転写層10との間に、離型層(図示しない)を設けることもできる。離型層を設けることで、転写層10の転写時における基材1からの転写層10の剥離性の向上を見込むことができる。なお、離型層は、転写層10を構成しない層であり、一実施形態の熱転写シート100における任意の構成である。
図1、図2に示すように、基材1の一方の面上には、上記で説明した転写層10と面順次に染料層7が設けられている。図1に示す形態の熱転写シート100は、基材1の一方の面上に単一の染料層7が設けられており、図2に示す形態の熱転写シートは、基材1の一方の面上に、複数の染料層(図示する形態では、染料層7Y、染料層7M、染料層7C)が面順次に設けられている。複数の染料層を面順次に設けた構成としては、例えば、イエロー染料層、マゼンタ染料層、シアン染料層、必要に応じてブラック染料層等を面順次に設けられた構成等を挙げることができる。
また、基材1と染料層7との間に、染料プライマー層(図示しない)を設けることもできる。染料プライマー層に含まれる成分について特に限定はなく、例えば、ポリエステル系樹脂、ポリビニルピロリドン樹脂、ポリビニルアルコール樹脂、ヒドロキシエチルセルロース、ポリアクリル酸エステル系樹脂、ポリ酢酸ビニル系樹脂、ポリウレタン系樹脂、アクリル-スチレン系共重合体、ポリアクリルアミド系樹脂、ポリアミド系樹脂、ポリエーテル系樹脂、ポリスチレン系樹脂、ポリエチレン系樹脂、ポリプロピレン系樹脂、ポリ塩化ビニル樹脂、ポリビニルアセトアセタールやポリビニルブチラール等のポリビニルアセタール系樹脂等を挙げることができる。
また、基材1の他方の面に、転写層10を転写する際におけるサーマルヘッドの走行性等を向上させるための背面層(図示しない)を設けてもよい。なお、背面層は一実施形態の熱転写シートにおける任意の構成である。
次に、一実施形態の熱転写シートを用いた印画物の製造方法について図3を参照して説明する。
また、反応型紫外線吸収剤-アクリル系モノマー共重合体を構成する反応型紫外線吸収剤(1)として、反応型紫外線吸収剤(RUVA-93 大塚化学(株))を使用し、反応型紫外線吸収剤(2)として、下記構造式(1)で示される反応型紫外線吸収剤を使用し、反応型紫外線吸収剤(3)として、下記構造式(2)で示される反応型紫外線吸収剤を使用した。なお、反応型紫外線吸収剤(1)は、ベンゾトリアゾール系反応型紫外線吸収剤であり、反応型紫外線吸収剤(2)は、ベンゾフェノン系反応型紫外線吸収剤であり、反応型紫外線吸収剤(3)は、トリアジン系反応型紫外線吸収剤である。
(SRa≦20nm、SPc≦100、SRm≦1100nm)
基材2:ポリエチレンテレフタレートフィルム(4.5μm 東レ(株))
(20nm≦SRa≦40nm、100≦SPc≦200、1100nm≦SRm≦2000nm)
・アクリル樹脂 65部
(ダイヤナール(登録商標)BR-87 三菱ケミカル(株))
・アクリル-スチレン系共重合体 30部
(ダイヤナール(登録商標)BR-52 三菱ケミカル(株))
・タルク 3部
(ミクロエース(登録商標)P-3 日本タルク(株))
・分散剤 2部
(DISPERBYK 180 BYK社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・アクリル樹脂 68部
(ダイヤナール(登録商標)BR-87 三菱ケミカル(株))
・アクリル-スチレン系共重合体 32部
(ダイヤナール(登録商標)BR-52 三菱ケミカル(株))
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・ポリカーボネート樹脂 97部
(PCZ-200 三菱ガス化学(株))
・タルク 3部
(ミクロエース(登録商標)P-3 日本タルク(株))
・分散剤 2部
(DISPERBYK 180 BYK社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・フェノキシ樹脂 97部
(PKHB InChem社)
・タルク 3部
(ミクロエース(登録商標)P-3 日本タルク(株))
・分散剤 2部
(DISPERBYK 180 BYK社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)63部
(Tg:90℃、Mw:20000-40000)
・PMMA 27部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)70部
(Tg:90℃、Mw:20000-40000)
・PMMA 30部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)63部
(Tg:90℃、Mw:20000-40000)
・PMAA 27部
(ダイヤナール(登録商標)BR-87 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)63部
(Tg:90℃、Mw:20000-40000)
・PMMA 14部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・塩化ビニル-酢酸ビニル共重合体 13部
(ソルバイン(登録商標)CNL 日信化学(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)63部
(Tg:90℃、Mw:20000-40000)
・塩化ビニル-酢酸ビニル共重合体 27部
(ソルバイン(登録商標)CNL 日信化学(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)63部
(Tg:90℃、Mw:20000-40000)
・ポリエステル樹脂 27部
(バイロン(登録商標)226 東洋紡(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率10:90)63部
(Tg:100℃、Mw:20000-40000)
・PMMA 27部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率50:50)63部
(Tg:80℃、Mw:20000-40000)
・PMMA 27部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)81部
(Tg:90℃、Mw:20000-40000)
・PMMA 9部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)45部
(Tg:90℃、Mw:20000-40000)
・PMMA 45部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA-St共重合体
(比率30:50:20) 63部
(Tg:90℃、Mw:20000-40000)
・PMMA 27部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(2)-MMA共重合体(比率30:70)63部
(Tg:90℃、Mw:20000-40000)
・PMMA 27部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(3)-MMA共重合体(比率30:70)63部
(Tg:90℃、Mw:20000-40000)
・PMMA 27部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率60:40)63部
(Tg:70℃、Mw:20000-40000)
・PMMA 27部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率5:95) 63部
(Tg:105℃、Mw:20000-40000)
・PMMA 27部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)90部
(Tg:90℃、Mw:20000-40000)
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-MMA共重合体(比率30:70)36部
(Tg:90℃、Mw:20000-40000)
・PMMA 54部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・反応型紫外線吸収剤(1)-St共重合体(比率30:70) 63部
(Tg:90℃、Mw:20000-40000)
・PMMA 27部
(ダイヤナール(登録商標)BR-83 三菱ケミカル(株))
・紫外線吸収剤 10部
(Tinuvin928 BASFジャパン社)
・メチルエチルケトン 240部
・酢酸ノルマルプロピル 60部
・ポリビニルアセタール(水酸基価12質量%) 47.6部
(エスレック(登録商標)KS-1 積水化学工業(株))
・ポリイソシアネート(NCO=17.3質量%) 15部
(バーノック(登録商標)D750 DIC(株))
・シリコーン樹脂微粒子(平均粒子径:4μm 多角形状) 1部
(トスパール240 モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社)
・ステアリルリン酸亜鉛 12部
(LBT-1830精製 堺化学工業(株))
・ステアリン酸亜鉛 12部
(SZ-PF 堺化学工業(株))
・ポリエチレンワックス 3.5部
(ポリワックス3000 東洋ペトロライト(株))
・エトキシ化アルコール変性ワックス 8.5部
(ユニトックス750 東洋アドレ(株))
・メチルエチルケトン 200部
・トルエン 100部
なお、ポリビニルアセタール樹脂が有する水酸基に対する、ポリイソシアネートが有するイソシアネート基のモル当量比(―NCO/-OH)は0.5である。
基材1の一方の面に上記組成の保護層用塗工液1を、乾燥時の厚みが1μmとなるように塗布・乾燥し保護層を形成した。次いで、保護層上に上記組成の接着層用塗工液1を、乾燥時の厚みが1μmとなるように塗布・乾燥し接着層を形成した。また、基材の他方の面に上記組成の背面層用塗工液を、乾燥時の厚みが0.5μmとなるように塗布・乾燥し背面層を形成することで、基材の一方の面に、保護層、接着層がこの順で積層されてなる転写層が設けられ、基材の他方の面に背面層が設けられた実施例1の熱転写シートを得た。なお、後述する保存性評価の便宜上、実施例1の熱転写シートでは、基材の転写層と同一面上に、色材層を設けない構成としている。各実施例、及び比較例の熱転写シートについても同様である。
実施例1における基材1、保護層用塗工液1、接着層用塗工液1を、下表1に示す基材、保護層用塗工液、接着層用塗工液に変更した以外は全て実施例1と同様の方法を用いて、実施例2~17、比較例1~6の熱転写シートを得た。なお、比較例6の熱転写シートは、基材の一方の面に接着層が設けられ、基材の他方の面に背面層が設けられた構成をとる。また、以下、保護層と接着層との積層体を転写層と称している(比較例6においては、接着層を転写層と称している)。
昇華型熱転写プリンタ(DS40 大日本印刷(株))と、該プリンタの純正リボンを用い、被転写体である純正受像紙上にデフォルト条件で黒ベタ画像(0/255階調)を印画した。次いで、各実施例、及び比較例の熱転写シートを用い、同一プリンタにより、上記黒ベタ画像上に、転写層を転写し、各実施例、及び比較例の印画物を得た。この印画物の黒ベタ画像が形成されている領域を2cm幅に切りだし、該印画物上に試験布(かなきん3号)を介して300gの重りを置き10往復させたときの表面状態を目視で確認し、以下の評価基準により擦過性評価を行った。評価結果を表2に示す。
A:転写層の表面状態に殆ど変化がない。
B:転写層は残っているが、保護層にキズがついている。
NG:転写層が剥がれている、又は接着層にキズがついている。
昇華型熱転写プリンタ(DS40 大日本印刷(株))と、該プリンタの純正リボンを用い、被転写体である純正受像紙上にデフォルト条件でYe(イエロー),Mg(マゼンタ),Cy(シアン),Bk(ブラック)のステップ画像を印画した。次いで、各実施例、及び比較例の熱転写シートを用い、同一プリンタにより、上記ステップ画像上に転写層を転写し、各実施例、及び比較例の印画物を得た。各実施例、及び比較例の印画物に対し、JEITA CP-3901Bに準拠する耐光性試験を実施し、算出された寿命年齢に基づいて耐光性の評価を行った。評価結果を表2に示す。
A:寿命年齢が5年以上である。
B:寿命年齢が3年以上5年未満である。
C:寿命年齢が1年以上3年未満である。
NG:寿命年齢が1年未満である。
基材としてのポリエチレンテレフタレートフィルム(4.5μm 東レ(株))の一方の面上に、上記組成の背面層用塗工液を、乾燥時の厚みが0.5μmとなるように塗布・乾燥し背面層を形成することで、基材上に背面層が形成された背面層付き基板を得た。次いで、昇華型熱転写プリンタ(DS40 大日本印刷(株))の純正リボンのマゼンタ部分と、上記で得た背面層付き基板の背面層とを対向させ、1.96MPa(20kg/cm2)の荷重をかけて、40℃、湿度90%環境下で96時間保管し、背面層付き基板の背面層に、マゼンタ染料を移行(キック)させた。
ΔE*=((対向前後のL*値の差)2+(対向前後のa*値の差)2+(対向前後のb*値の差)2)1/2
なお、L*a*b*は、CIE1976、L*a*b*表色系(JIS-Z-8729(1980))に規定されているL*a*b*を意味する。
A:未保存の転写層を転写した転写物と、バックさせた転写層を転写した転写物の色差ΔE*が0.8未満である。
B:未保存の転写層を転写した転写物と、バックさせた転写層を転写した転写物の色差ΔE*が0.8以上1.6未満である。
C:未保存の転写層を転写した転写物と、バックさせた転写層を転写した転写物の色差ΔE*が1.6以上3.2未満である。
NG:未保存の転写層を転写した転写物と、バックさせた転写層を転写した転写物の色差ΔE*が3.2以上である。
昇華型熱転写プリンタ(DS40 大日本印刷(株))と、該プリンタの純正リボンを用い、被転写体である純正受像紙上の右半面にデフォルト条件で黒ベタ画像(0/255階調)を印画し、黒ベタ画像が印画された右半分の領域を黒ベタ領域とした。一方で、純正受像紙上の左半面には、画像形成を行わず、この画像形成を行わなかった領域を白ベタ領域とした。次いで、各実施例、及び比較例の熱転写シートを用い、同一プリンタにより、上記黒ベタ領域、及び白ベタ領域に転写層(接着層+保護層(比較例6においては接着層))を転写し、各実施例、及び比較例の印画物を得た。この印画物において転写層が転写された部分の黒ベタ領域、及び転写層が転写された部分の白ベタ領域の光沢度を、光沢度計(Gloss meter VG7000(日本電色(株))を用いて測定し(測定角度20°)、以下の評価基準により光沢度評価を行った。評価結果を表2に示す。
A:黒ベタ領域の光沢度が60%以上、且つ白ベタ領域の光沢度が55%以上である。
B:黒ベタ領域の光沢度が50%以上60%未満、又は白ベタ領域の光沢度が45%以上55%未満である(但し、以下の「C」、「D」を満たす場合は除く)。
C:黒ベタ領域の光沢度が40%以上50%未満、又は白ベタ領域の光沢度が35%以上45%未満である(但し、以下の「D」を満たす場合は除く)。
NG:黒ベタ領域の光沢度が40%未満、又は白ベタ領域の光沢度が35%未満である。
2…保護層
3…接着層
7…染料層
10…転写層
100…熱転写シート
150…熱転写受像シート用基材
151…受容層
160…熱転写画像
200…熱転写受像シート
300…印画物
Claims (5)
- 基材の一方の面上に、転写層、染料層が面順次に設けられた熱転写シートであって、
前記転写層は、前記基材側から、保護層、接着層がこの順で積層されてなる積層構成を呈し、
前記接着層が、2種以上の樹脂成分を含有しており、
前記2種以上の樹脂成分の1つが、反応型紫外線吸収剤とアクリル系モノマーとの共重合体であり、
前記反応型紫外線吸収剤と前記アクリル系モノマーとの共重合体における前記反応型紫外線吸収剤の共重合比率がモル比で10%以上50%以下の範囲であり、前記アクリル系モノマーの共重合比率がモル比で50%以上90%以下の範囲であり、
前記反応型紫外線吸収剤とアクリル系モノマーとの共重合体の含有量が、前記接着層の総質量に対し50質量%以上90質量%以下の範囲であることを特徴とする熱転写シート。 - 前記2種以上の樹脂成分の他の1つが、アクリル系樹脂、及び塩化ビニル-酢酸ビニル共重合体の何れか一方、又は双方であることを特徴とする請求項1に記載の熱転写シート。
- 前記保護層が、バインダー樹脂と、タルクとを含有していることを特徴とする請求項1又は2に記載の熱転写シート。
- 前記保護層が含有している前記バインダー樹脂が、アクリル系樹脂、ポリカーボネート系樹脂、フェノキシ系樹脂の何れかであることを特徴とする請求項3に記載の熱転写シート。
- 前記反応型紫外線吸収剤とアクリル系モノマーとの共重合体をなす、前記反応型紫外線吸収剤が、ベンゾトリアゾール系反応型紫外線吸収剤であることを特徴とする請求項1乃至4の何れか1項に記載の熱転写シート。
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US16/333,028 US10744742B2 (en) | 2016-09-28 | 2017-09-22 | Thermal transfer sheet |
CN201780054583.8A CN109661314B (zh) | 2016-09-28 | 2017-09-22 | 热转印片 |
EP17855992.8A EP3513982B1 (en) | 2016-09-28 | 2017-09-22 | Heat transfer sheet |
JP2018542519A JP6540903B2 (ja) | 2016-09-28 | 2017-09-22 | 熱転写シート |
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EP3513982B1 (en) * | 2016-09-28 | 2021-10-13 | Dai Nippon Printing Co., Ltd. | Heat transfer sheet |
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Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62238791A (ja) | 1986-04-11 | 1987-10-19 | Dainippon Printing Co Ltd | 物品の装飾方法 |
JPH07290848A (ja) | 1994-04-27 | 1995-11-07 | Dainippon Printing Co Ltd | 熱転写シート |
JP2000071626A (ja) * | 1998-08-31 | 2000-03-07 | Dainippon Printing Co Ltd | 保護層転写シートおよび印画物 |
JP2002362068A (ja) * | 2001-06-11 | 2002-12-18 | Dainippon Printing Co Ltd | 印画物形成方法及び印画物 |
JP2006124686A (ja) * | 2004-09-30 | 2006-05-18 | Dainippon Printing Co Ltd | 熱転写型画像保護シート |
JP2006327193A (ja) * | 1994-02-21 | 2006-12-07 | Dainippon Printing Co Ltd | 保護層転写フィルム、及び印画物 |
JP2007090782A (ja) * | 2005-09-29 | 2007-04-12 | Dainippon Printing Co Ltd | 保護層転写シートおよび印画物 |
JP2013082212A (ja) | 2011-09-30 | 2013-05-09 | Dainippon Printing Co Ltd | 画像形成方法、熱転写シートと熱転写受像シートとの組合せ |
JP2013180455A (ja) * | 2012-02-29 | 2013-09-12 | Dainippon Printing Co Ltd | 保護層転写シート、熱転写シートと保護層転写シートとの組合せ、印画物、印画物の形成方法 |
JP2014198430A (ja) * | 2013-03-29 | 2014-10-23 | 大日本印刷株式会社 | 保護層転写シート |
JP2015091645A (ja) * | 2013-09-30 | 2015-05-14 | 大日本印刷株式会社 | 保護層転写シート |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69501012T2 (de) | 1994-02-21 | 1998-04-23 | Dainippon Printing Co Ltd | Schutzschichtübertragungsfilm und Bilddruckmaterial |
US6346316B1 (en) | 1998-08-26 | 2002-02-12 | Dai Nippon Printing Co., Ltd. | Protective layer transfer sheet and print |
JP2001246845A (ja) * | 2000-03-03 | 2001-09-11 | Dainippon Printing Co Ltd | 保護層転写シート |
US6984424B2 (en) * | 2002-03-01 | 2006-01-10 | Dai Nippon Printing Co., Ltd. | Thermally transferable image protective sheet, method for protective layer formation, and record produced by said method |
JP2004122642A (ja) * | 2002-10-03 | 2004-04-22 | Konica Minolta Holdings Inc | 認証識別カード作成方法及びそれに用いるカード表面保護用転写箔 |
JP4493403B2 (ja) | 2004-05-25 | 2010-06-30 | 大日本印刷株式会社 | 熱転写受像シートとその製造方法 |
JP4493565B2 (ja) | 2004-08-25 | 2010-06-30 | 大日本印刷株式会社 | 熱転写受像シート及びその製造方法 |
US7247365B2 (en) | 2004-09-30 | 2007-07-24 | Dai Nippon Printing Co., Ltd. | Thermally transferable protective sheet |
CN101423001B (zh) * | 2007-10-31 | 2012-05-30 | 焦作市卓立烫印材料有限公司 | 玻璃热转印箔及其制备方法 |
JP5272587B2 (ja) * | 2008-09-01 | 2013-08-28 | 大日本印刷株式会社 | 印画物、及び印画物の形成方法 |
JP5251793B2 (ja) * | 2008-09-01 | 2013-07-31 | 大日本印刷株式会社 | 保護層熱転写シート及び印画物 |
JP5810799B2 (ja) | 2011-09-22 | 2015-11-11 | ソニー株式会社 | 被熱転写シート |
JP5516806B2 (ja) * | 2012-09-28 | 2014-06-11 | 大日本印刷株式会社 | 保護層転写シート |
EP2979891B1 (en) * | 2013-03-29 | 2020-06-17 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet, coating liquid for colorant layer, production method for thermal transfer sheet, and image forming method |
EP3053740B1 (en) | 2013-09-30 | 2022-11-23 | Dai Nippon Printing Co., Ltd. | Protective layer transfer sheet |
EP3513982B1 (en) * | 2016-09-28 | 2021-10-13 | Dai Nippon Printing Co., Ltd. | Heat transfer sheet |
-
2017
- 2017-09-22 EP EP17855992.8A patent/EP3513982B1/en active Active
- 2017-09-22 JP JP2018542519A patent/JP6540903B2/ja active Active
- 2017-09-22 US US16/333,028 patent/US10744742B2/en active Active
- 2017-09-22 CN CN201780054583.8A patent/CN109661314B/zh active Active
- 2017-09-22 WO PCT/JP2017/034289 patent/WO2018062038A1/ja unknown
- 2017-09-22 KR KR1020197006648A patent/KR102324020B1/ko active IP Right Grant
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62238791A (ja) | 1986-04-11 | 1987-10-19 | Dainippon Printing Co Ltd | 物品の装飾方法 |
JP2006327193A (ja) * | 1994-02-21 | 2006-12-07 | Dainippon Printing Co Ltd | 保護層転写フィルム、及び印画物 |
JPH07290848A (ja) | 1994-04-27 | 1995-11-07 | Dainippon Printing Co Ltd | 熱転写シート |
JP2000071626A (ja) * | 1998-08-31 | 2000-03-07 | Dainippon Printing Co Ltd | 保護層転写シートおよび印画物 |
JP2002362068A (ja) * | 2001-06-11 | 2002-12-18 | Dainippon Printing Co Ltd | 印画物形成方法及び印画物 |
JP2006124686A (ja) * | 2004-09-30 | 2006-05-18 | Dainippon Printing Co Ltd | 熱転写型画像保護シート |
JP2007090782A (ja) * | 2005-09-29 | 2007-04-12 | Dainippon Printing Co Ltd | 保護層転写シートおよび印画物 |
JP2013082212A (ja) | 2011-09-30 | 2013-05-09 | Dainippon Printing Co Ltd | 画像形成方法、熱転写シートと熱転写受像シートとの組合せ |
JP2013180455A (ja) * | 2012-02-29 | 2013-09-12 | Dainippon Printing Co Ltd | 保護層転写シート、熱転写シートと保護層転写シートとの組合せ、印画物、印画物の形成方法 |
JP2014198430A (ja) * | 2013-03-29 | 2014-10-23 | 大日本印刷株式会社 | 保護層転写シート |
JP2015091645A (ja) * | 2013-09-30 | 2015-05-14 | 大日本印刷株式会社 | 保護層転写シート |
Non-Patent Citations (1)
Title |
---|
See also references of EP3513982A4 |
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