WO2005068218A9 - 熱転写シート、その製造法およびこの熱転写シートが転写された画像形成体 - Google Patents
熱転写シート、その製造法およびこの熱転写シートが転写された画像形成体Info
- Publication number
- WO2005068218A9 WO2005068218A9 PCT/JP2004/018783 JP2004018783W WO2005068218A9 WO 2005068218 A9 WO2005068218 A9 WO 2005068218A9 JP 2004018783 W JP2004018783 W JP 2004018783W WO 2005068218 A9 WO2005068218 A9 WO 2005068218A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- thermal transfer
- hologram
- sheet
- transfer
- Prior art date
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/17—Dry transfer
- B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
- B44C1/1725—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive using an intermediate support
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
- B42D25/465—Associating two or more layers using chemicals or adhesives
- B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/10—Laminate comprising a hologram layer arranged to be transferred onto a carrier body
Definitions
- Thermal transfer sheet method for producing the same, and image forming body onto which the thermal transfer sheet is transferred
- the present invention relates to a thermal transfer sheet. More specifically, the present invention relates to a thermal transfer sheet capable of easily transferring a hologram having an excellent anti-counterfeit function, a method for producing the same, and an image forming body to which the thermal transfer sheet has been transferred.
- a hologram generally records a light interference pattern, and enables a color change or a three-dimensional image to be visually recognized according to a light source or a viewing angle. Since the formation of this hologram requires a high level of technology and the slight distortion of the hologram image can be easily identified visually, it has been conventionally used to counterfeit goods such as credit cards, bank cards and ID cards. And is used for the purpose of preventing alteration.
- the present inventors have solved the above-mentioned problems.
- thermo transfer sheet according to the present invention is
- a thermal transfer sheet comprising a transparent transfer layer releasably provided on the substrate sheet, A hologram layer is formed on at least a part of the transparent transfer layer.
- the transparent transfer layer may be a laminate of an intermediate transfer medium having a protective layer and a hologram transfer layer having a hologram layer.
- the transparent transfer layer may be a hologram transfer layer having a hologram layer laminated on an intermediate transfer medium having a protective layer by a thermal transfer method.
- a hologram transfer layer having a hologram layer may be laminated on the intermediate transfer medium having the protective layer via an adhesive layer.
- a hologram transfer layer having a hologram layer may be laminated on the intermediate transfer medium having the protective layer via a pressure-sensitive adhesive layer.
- the hologram transfer layer may be formed in a pattern.
- the method for producing a thermal transfer sheet according to the present invention includes laminating a hologram transfer layer having a hologram layer on an intermediate transfer medium having a protective layer provided on a base sheet by a thermal transfer method. It is a feature.
- Another method of manufacturing a thermal transfer sheet according to the present invention includes laminating a volume hologram transfer layer having a hologram layer via an adhesive layer on an intermediate transfer medium having a protective layer provided on a base sheet. , Is characterized.
- Another method of manufacturing a thermal transfer sheet according to the present invention is to laminate a hologram transfer layer having a hologram layer via a pressure-sensitive adhesive layer on an intermediate transfer medium having a protective layer provided on a base sheet. Is characterized in that:
- an image forming body according to the present invention is characterized in that the thermal transfer sheet is transferred.
- hologram layer refers to a relief hologram, an embossed hollow hologram, And a transfer layer having a diffractive structure.
- the thermal transfer sheet according to the present invention has a hologram formed thereon, and is intended to prevent forgery and alteration of articles such as credit cards, bank cards, and ID cards. According to the present invention, it is possible to efficiently manufacture a thermal transfer sheet and perform thermal transfer processing in a large amount.
- an image forming body having the hologram transfer sheet and the hologram layer can be efficiently obtained at low cost.
- FIG. 1 is a schematic view showing a cross section of a specific example of a thermal transfer sheet according to the present invention.
- FIG. 2 is a schematic view showing a protective layer thermal transfer sheet as a specific example of the thermal transfer sheet according to the present invention.
- FIG. 3 is a schematic diagram showing a patch transfer sheet as a specific example of the thermal transfer sheet according to the present invention.
- FIG. 4 is a schematic diagram showing a surface sequential transfer sheet as a specific example of the thermal transfer sheet according to the present invention.
- FIG. 2 is a schematic view showing an intermediate transfer medium sheet as a specific example of the thermal transfer sheet according to the present invention.
- FIG. 6 is a schematic view showing an embossed hologram transfer sheet as a specific example of the thermal transfer sheet according to the present invention.
- FIG. 7 is a schematic view showing an embossed hologram intermediate transfer medium sheet as a specific example of the thermal transfer sheet according to the present invention.
- a thermal transfer sheet 1 according to the present invention shown in FIG. 1 includes a base sheet 2 and a transparent transfer layer 3 that can be peeled off from the base sheet 2, and at least a part of the transparent transfer layer 3 has a volume.
- the hologram layer 4 is formed.
- the thermal transfer sheet 1 of Fig. 1 is overlaid on an article (not shown) such as a force and subjected to a thermal transfer operation
- the base sheet 2 and the transparent transfer layer 3 are bonded at the interface.
- the transparent transfer layer 3 is transferred to an article such as a card.
- the transparent transfer layer 3 can be a laminate force of an intermediate transfer medium ( ⁇ ) having a protective layer and a volume hologram transfer layer ( ⁇ ) having a volume hologram layer.
- the transparent transfer layer 3 is preferably manufactured by laminating a volume hologram transfer layer (T) having a volume hologram layer on an intermediate transfer medium (M) having a protective layer by a thermal transfer method. be able to.
- the first embodiment (FIG. 2 (b), FIG. 2 (c) relating to the protective layer transfer sheet, the patch transfer sheet
- the second embodiment (FIGS. 3 (b) and 3 (c)), the third embodiment (FIG. 4 (b) and FIG. 4 (c)) regarding the surface-sequential transfer sheet, and the fourth embodiment regarding the intermediate transfer medium Embodiment (FIGS. 5 (b) and 5 (c)), Fifth embodiment relating to embossed hologram transfer sheet (FIGS. 6 (b) and 6 (c)), and sixth embodiment relating to embossed hologram intermediate transfer medium (FIG. 7 (b), FIG. 7 (c)).
- FIG. 2 (b) shows a preferred example V of the first embodiment, one specific example.
- the thermal transfer sheet 1 shown in FIG. 2B includes a base sheet 2 and a transparent transfer layer 3 that can be peeled off from the base sheet 2, and has an intermediate transfer medium (M) having a protective layer.
- a volume hologram transfer layer (T) having a volume hologram layer is laminated via an adhesive layer 6a.
- the intermediate transfer medium (M) having a protective layer includes a release layer 4 and a protective layer 5, and the volume hologram transfer layer (T) having a volume hologram layer has an adhesive layer 7, a volume hologram layer 8, and an adhesive layer. It consists of layer 9.
- a pressure-sensitive adhesive layer 6 ⁇ can be used instead of the above-mentioned adhesive layer 6 ⁇ .
- the thermal transfer sheet 1 shown in FIG. 2 (b) comprises an intermediate transfer medium (M) having a protective layer on a base sheet 2 and an adhesive layer 6 a (or pressure-sensitive adhesive layer 6) is formed on the base sheet 10 and a volume hologram transfer layer (T) having a volume hologram layer is formed on the base sheet 10 to form (M) and (T) After joining these two sheets, the base sheet 10 can be peeled off to form the sheet.
- M intermediate transfer medium
- an adhesive layer 6 a or pressure-sensitive adhesive layer 6
- T volume hologram transfer layer
- FIG. 2 (c) is a perspective view schematically showing the thermal transfer sheet 1 shown in FIG. 2 (b).
- the transfer is performed at the interface between the release layer 4 and the protective layer 5 by heating the back surface of the base sheet 2 with T / H or the like. Then, it is transferred to the final image-formed product in an arbitrary shape from the protective layer.
- Revised invitation (Regulation H91) It is also possible to form two layers by interposing another intermediate layer or the like, or by changing the material of each layer.
- the portion of the intermediate transfer medium having the protective layer is the same as the patch transfer sheet in the second embodiment, whereas the protective layer in the first embodiment is provided by coating. Is obtained by half-cutting or fusing a protective sheet such as PET in advance and laminating them in a predetermined size.When transferring to a final image-formed product, peeling is performed at the interface between the release layer 4 and the protective sheet 5. Then, each protective sheet is transferred to the final image-formed product.
- part 5 is transferred to the final image-formed product.
- FIG. 3 (b) shows a second embodiment preferred! /, Shows one specific example.
- the thermal transfer sheet 1 shown in FIG. 3 (b) is composed of a base sheet 2 and a transparent transfer layer 3 which can be peeled off from the base sheet 2, and has an intermediate transfer medium (M) having a protective layer.
- a volume hologram transfer layer (T) having a volume hologram layer is laminated via an adhesive layer 6a.
- the intermediate transfer medium (M) having a protective layer includes a release layer 4 and a protective layer 5, and the volume hologram transfer layer (T) having a volume hologram layer has an adhesive layer 7, a volume hologram layer 8, and an adhesive layer. It consists of layer 9.
- the pressure-sensitive adhesive layer 6 ⁇ may be used instead of the adhesive layer 6 described above.
- the thermal transfer sheet 1 shown in FIG. 3 (b) has an intermediate transfer medium (M) having a protective layer on a base sheet 2 and an adhesive layer 6a ( Alternatively, the layer on which the pressure-sensitive adhesive layer 6 ⁇ ) is formed and the layer on which the volume hologram transfer layer ( ⁇ ) having the volume hologram layer is formed on the base sheet 10 are superposed to form ( ⁇ ) and ( ⁇ ). After joining, the base sheet 10 can be formed by peeling off the base sheet.
- M intermediate transfer medium
- the layer on which the pressure-sensitive adhesive layer 6 ⁇ ) is formed and the layer on which the volume hologram transfer layer ( ⁇ ) having the volume hologram layer is formed on the base sheet 10 are superposed to form ( ⁇ ) and ( ⁇ ).
- the base sheet 10 can be formed by peeling off the base sheet.
- FIG. 3 (c) is a perspective view schematically showing the thermal transfer sheet 1 shown in FIG. 3 (b).
- FIG. 4 (b) shows a preferred specific example of the third embodiment.
- the thermal transfer sheet 1 shown in FIG. 4 (b) is composed of a base sheet 2 and a transparent transfer layer 3 which can be peeled off from the base sheet 2, and has an intermediate transfer medium (M) having a protective layer. On top, a volume hologram transfer layer (T) having a volume hologram layer is laminated via an adhesive layer 6a.
- the intermediate transfer medium (M) having the protective layer is in contact with the release layer 11 and the protective layer 5, and the volume hologram transfer layer (T) having the volume hologram layer is provided with the adhesive layer 7, the volume hologram layer 8, and the adhesive layer. It consists of layer 9. Note that a pressure-sensitive adhesive layer 6] 3 is used instead of the above-mentioned adhesive layer 6 ⁇ .
- a color material layer 12 (12Y, 12M, 12C) is provided on a surface portion where an intermediate transfer medium (M) having a protective layer on the base material sheet 2 is formed.
- M intermediate transfer medium
- a back layer 13 can be formed as necessary.
- the adhesive strength between the base sheet 2 and the coloring material layer 12 can be improved.
- the thermal transfer sheet 1 shown in FIG. 4 (b) has an intermediate transfer medium (M) having a protective layer on a base sheet 2 and an adhesive layer 6a ( Alternatively, the layer on which the pressure-sensitive adhesive layer 6 ⁇ ) is formed and the layer on which the volume hologram transfer layer ( ⁇ ) having the volume hologram layer is formed on the base sheet 10 are superposed to form ( ⁇ ) and ( ⁇ ). After joining, the base sheet 10 can be formed by peeling off the base sheet.
- M intermediate transfer medium
- the layer on which the pressure-sensitive adhesive layer 6 ⁇ ) is formed and the layer on which the volume hologram transfer layer ( ⁇ ) having the volume hologram layer is formed on the base sheet 10 are superposed to form ( ⁇ ) and ( ⁇ ).
- the base sheet 10 can be formed by peeling off the base sheet.
- FIG. 4 (c) is a perspective view schematically showing the thermal transfer sheet 1 shown in FIG. 4 (b).
- FIG. 5 (b) shows a preferred specific example of the fourth embodiment.
- the thermal transfer sheet 1 shown in FIG. 5 (b) is composed of a base sheet 2 and a transparent transfer layer 3 which can be peeled off from the base sheet 2, and has an intermediate transfer medium (M) having a protective layer.
- a volume hologram transfer layer (T) having a volume hologram layer is laminated via an adhesive layer / reception layer 6 ′.
- the intermediate transfer medium (M) having a protective layer includes a release layer 4 and a protective layer 5
- the volume hologram transfer layer (T) having a volume hologram layer includes a bonding layer 7, a volume hologram layer 8, It consists of an adhesive layer 9.
- the thermal transfer sheet 1 shown in FIG. 5 (b) has an intermediate transfer medium (M) having a protective layer on a base sheet 2 and an adhesive layer / receiving layer. 6 '
- the substrate sheet 10 having a volume hologram transfer layer (T) having a volume hologram layer formed thereon is overlapped with (M) and (T), and then the substrate sheet 10 is peeled off. Can be formed.
- FIG. 5 (c) is a perspective view schematically showing the thermal transfer sheet 1 shown in FIG. 5 (b).
- FIG. 6B shows a preferred specific example of the fifth embodiment.
- the thermal transfer sheet 1 shown in FIG. 6B includes a base sheet 2 and a transparent transfer layer 3 that can be peeled off from the base sheet 2, and has an intermediate transfer medium (M) having a protective layer.
- a volume hologram transfer layer (T) having a volume hologram layer is laminated with an adhesive layer 6 interposed therebetween.
- the intermediate transfer medium (M) having a protective layer is composed of a release layer 4, a protective layer 5, an emboss hologram layer 14, and a vapor deposition layer 15, and the volume hologram transfer layer (T) having a volume hologram layer has an adhesive layer. It comprises a layer 7, a volume hologram layer 8 and an adhesive layer 9.
- a pressure-sensitive adhesive layer 6] 3 can be used instead of the above-mentioned adhesive layer 6a.
- the thermal transfer sheet 1 shown in FIG. 6 (b) has an intermediate transfer medium (M) having a protective layer on a base sheet 2 and an adhesive layer 6a ( Alternatively, the one on which the pressure-sensitive adhesive layer 6 ⁇ ) is formed and the one on which the volume hologram transfer layer ( ⁇ ) having the volume hologram layer is formed on the base sheet 10 are superimposed ( ⁇ ) and ( ⁇ ). After bonding, the base sheet 10 can be formed by peeling.
- M intermediate transfer medium
- the one on which the pressure-sensitive adhesive layer 6 ⁇ ) is formed and the one on which the volume hologram transfer layer ( ⁇ ) having the volume hologram layer is formed on the base sheet 10 are superimposed ( ⁇ ) and ( ⁇ ).
- the base sheet 10 can be formed by peeling.
- two types of hologram layers are formed.
- the synergistic effect of the three-dimensional arrangement of these two types of hologram layers further improves the prevention of forgery and alteration.
- Embossed hologram processing which is generally easy and inexpensive, can greatly improve the prevention of forgery and alteration.
- the embossed hologram layer 14 is formed on the entire surface of the intermediate transfer medium (M) having the protective layer, but may be formed partially.
- FIG. 6 (c) is a perspective view schematically showing the thermal transfer sheet 1 shown in FIG. 6 (b).
- FIG. 7 (b) shows a preferred specific example of the sixth embodiment.
- the thermal transfer sheet 1 shown in FIG. 7 (b) is composed of a base sheet 2 and a transparent transfer layer 3 which can be peeled off from the base sheet 2, and has an intermediate transfer medium (M) having a protective layer.
- a volume hologram transfer layer (T) having a volume hologram layer is laminated via an adhesive layer / reception layer 6 ′.
- the intermediate transfer medium (M) having a protective layer is composed of a release layer 4, a protective layer 5, an embossed hologram layer 14 and a vapor deposition layer 15, and the volume hologram transfer layer (T) having a volume hologram layer has an adhesive layer. It comprises a layer 7, a volume hologram layer 8 and an adhesive layer 9.
- characters, figures, and other identification symbols can be drawn with ink or the like.
- the thermal transfer sheet 1 shown in FIG. 7 (b) has an intermediate transfer medium (M) having a protective layer on a base sheet 2 and an adhesive layer / receiver.
- M intermediate transfer medium
- T volume hologram transfer layer
- hologram layers two types of hologram layers, the volume hologram layer 8 and the emboss hologram layer 14, are formed. Due to the synergistic effect of the three-dimensional arrangement of these two holograms, the forgery and alteration prevention properties are further improved.
- embossed hologram processing can be performed easily and at low cost, so even if it is formed on the entire surface of the thermal transfer sheet (M), there is no major disadvantage in terms of manufacturing cost.
- FIG. 7 (c) is a perspective view schematically showing the thermal transfer sheet 1 shown in FIG. 7 (b).
- the thermal transfer sheet according to the present invention can be formed by any method. For example, it can be formed by sequentially applying or laminating another layer on any of the above layers, or a multilayer structure of two or more layers previously applied or laminated, for example,
- Corrected invitation ( ⁇ ⁇ 9 ⁇ It can also be formed by combining the heat transfer sheet for information material (M) and the volume hologram transfer layer (T) having a volume hologram layer.
- an intermediate transfer medium (M) having a protective layer is formed on a base sheet 2 as shown in, for example, FIGS.
- M intermediate transfer medium
- T volume hologram transfer layer
- a hologram generally records a light interference pattern, and forms a three-dimensional image by recording light interference fringes in the form of transmittance modulation and refractive index modulation.
- the volume hologram layer in the present invention can be formed by applying a volume hologram recording material or the like.
- a volume hologram recording material for example, a material for a dry volume phase hologram recording composed of a matrix polymer, a photopolymerizable compound, a photopolymerization initiator, a photosensitive dye, a plasticizer, and the like can be used.
- a silver salt emulsion, a dike-mouthed gelatin emulsion, a photopolymerizable resin, a photocrosslinkable resin, and the like can be included.
- the volume hologram layer can be provided on the entire surface of the force sheet usually provided on a part of the sheet.
- base sheet in the thermal transfer sheet As the base sheet in the thermal transfer sheet according to the present invention, the same as the base sheet used in this type of thermal transfer sheet application, that is, it is used as it is! Can be.
- preferred base sheets include resin materials such as (ii) polyester (preferably polyethylene terephthalate and polyethylene naphthalate), polycarbonate, polyamide, polyimide, cellulose acetate, polyvinylidene chloride, polyvinyl chloride, (Mouth) papers such as polystyrene, fluororesin, polypropylene, polyethylene, and ionomers, such as dalasin paper, condenser paper, and paraffin paper, can be fisted. Those composed of two or more of these can be used.
- resin materials such as (ii) polyester (preferably polyethylene terephthalate and polyethylene naphthalate), polycarbonate, polyamide, polyimide, cellulose acetate, polyvinylidene chloride, polyvinyl chloride, (Mouth
- the thermal transfer sheet according to the present invention is transferred to a transfer object such as a card, it is not usually necessary that the substrate sheet itself is transparent. ,.
- the thermal transfer sheet according to the present invention is preferably transferred to the printed material on the substrate sheet.
- Revised paper (Rule 91) In addition, it must have sufficient heat resistance and strength.
- those having excellent heat resistance and strength particularly polyethylene terephthalate and polyethylene naphthalate, are preferred.
- the thickness of the base sheet can be appropriately determined in consideration of the required strength, heat resistance, and the like, depending on the specific material used, the target of thermal transfer, and the conditions.
- polyethylene terephthalate for example, 2.5 to 100 zm force S is preferable.
- examples include indene resin, polybutylene, silicone resin, alpha-cyanoacrylate, silicone, maleimide, styrene, polyolefin, and resorcinol adhesives.
- polyester resin polyamide resin, acrylic resin, vinyl chloride resin, vinyl acetate resin, copolymer resin with vinyl chloride-vinyl acetate, styrene-acryl copolymer resin, urethane resin.
- polyester resins are particularly preferred.
- the thickness of the adhesive layer is 0.1-5-1 / im, especially 0.3-3 / im, the force S preferred.
- the protective layer is a resin having transparency, preferably, for example, polyethylene, polypropylene, polyethylene fluoride, polyvinylidene fluoride, polyvinyl chloride, polyvinylidene chloride, ethylene-butyl alcohol, polyvinyl alcohol, Examples thereof include polymethyl methacrylate, polyether sulfone, polar ether ketone, polyamide, tetrafluoroethylene-perfluoroalkylbutyl ether, polyethylene terephthalate, and polyimide.
- thermal transferability can be improved by providing a release layer. It is necessary that this release layer remains on the substrate sheet side during thermal transfer, and does not adhere to and remain on a transfer object such as a card.
- this release layer is used when a color material layer is formed on a base material sheet and the base material sheet is easily bonded, as in the surface-sequential transfer sheet shown in the third embodiment. This is effective for improving the releasability between the base sheet and the transparent transfer sheet.
- the release layer is made of, for example, waxes, silicone wax, silicone resin, fluorine resin, acrylic resin, polybutyl alcohol resin, cellulose derivative resin, urethane resin, acetic acid butyl resin, acryl butyl ether resin, and maleic anhydride. It can be formed from at least one kind of acid resin or a copolymer or mixture thereof.
- the thickness of the release layer is preferably 0.2 to 1.5 x m, and particularly preferably 0.3 to 1 ⁇ .
- the back layer prevents the thermal head and heating roll from fusing during thermal transfer, improves slip properties, prevents static charge, and increases the rigidity of the thermal transfer sheet to prevent expansion and contraction. This contributes to easy positioning of the sheet.
- Such a back layer is made of, for example, a material conventionally used in the field of a thermal transfer film, preferably, for example, a silicone resin, a polyvinyl butyral resin, a polybutyl acetate resin, a polyester resin, or a polyether resin.
- a reaction cured product of a thermoplastic resin having a reactive group in the resin and polyisocyanate A reaction product with a monomer or oligomer having an unsaturated bond can be used, and the curing method is not particularly limited, for example, heating or irradiation with ionizing radiation.
- Examples of the lubricity-imparting agent that can be added to or overcoated on the back layer made of these resins include phosphate esters, silicone oils, graphite powders, silicone-based graft polymers, fluorine-based graft polymers, and acrylic-silicone graft polymers. And a silicone polymer such as acrylic siloxane, arylsiloxane, or the like.Polyol, for example, a layer composed of a polyalcohol polymer compound and a polyisocyanate compound and a phosphate compound, More preferably, a filler is added.
- the thickness of the back layer is 0.1 to 3 zm, especially 0.1 to 2 zm.
- a heat-sublimable color material layer or a heat-meltable color material layer can be further formed.
- a color material can be attached to a transfer object such as a card at the same time as when the thermal transfer sheet according to the present invention is thermally transferred to a transfer object such as a card, or independently of thermal transfer.
- patterns such as characters and figures can be formed on the transfer surface of a card or the like.
- the following color material layers can be sequentially formed.
- the embossed hologram layer in the thermal transfer sheet according to the present invention can be formed by, for example, a resin film that has been embossed so as to form a hologram.
- an ultraviolet absorber can be used if necessary.
- a layer containing an ultraviolet absorber it is possible to prevent or suppress deterioration and deterioration of the print and the transfer layer itself from ultraviolet rays contained in sunlight or the like.
- the ultraviolet absorber can be blended in any one layer or in two or more layers that will be present on the print after transfer.
- a layer may be provided separately from the water-absorbing layer, the intermediate layer, and the adhesive layer, and an ultraviolet absorber may be blended in this layer.
- organic ultraviolet absorbers such as benzophenone-based compounds, benzotriazole-based compounds, oxalic acid anilide-based compounds, cyanoacrylate-based compounds, salicylate-based compounds, etc .
- inorganic ultraviolet absorbers such as zinc, titanium, cerium, tin
- Oxides such as iron can be exemplified as preferred.
- the compounding amount of the ultraviolet absorber is preferably 10 to 40% by weight, particularly 25 to 35% by weight, based on the whole layer of the laminated structure containing the ultraviolet absorber.
- the method of thermally transferring the thermal transfer sheet of the present invention to an object to be transferred such as a card is not particularly limited, and any conventionally used method can be adopted as long as the thermal transfer can be performed well.
- heating of the thermal transfer sheet, pressure bonding of the protective layer thermal transfer sheet to the print, and peeling of the base sheet are necessary.
- a coating liquid for forming a release layer having the following composition was applied on a 6-zm-thick PET film (Lumirror, manufactured by Toray Industries, Inc.) and dried to form a release layer.
- the release layer had a thickness of 0.7 g / m 2 when dried.
- a coating liquid for forming a protective layer having the following composition was applied on the formed release layer, and dried to form a protective layer.
- the thickness of the protective layer was 1. Og / m 2 when dried.
- Slip agents polyethylene wax 0.5 by weight 0/0
- Methyl ethyl ketone 35.0% by weight
- an adhesive layer forming coating liquid having the following composition was applied on the formed protective layer, and dried to form an adhesive layer.
- the adhesive layer had a thickness of 1.6 g / m 2 when dried.
- Methyl ethyl ketone 32.5% by weight
- a laminate A having a laminate structure of PET film / hologram recording layer / peelable PET film (HRF800x001, manufactured by Dubon) was prepared.
- a solution prepared by dissolving 60 parts by weight of an ethylene-vinyl acetate copolymer (EC1700, manufactured by Chuo Rika Co., Ltd.) in 40 parts by weight of isopropyl alcohol was applied on a PET film similar to that used above.
- the resultant was applied with a gravure coater and dried to obtain a laminate B having an adhesive layer.
- the adhesive layer had a thickness of 3 x m when dried.
- a releasable PET film similar to that used above was prepared by dissolving a solution prepared by dissolving 60 parts by weight of an ethylene monoacetate butyl copolymer (EC1700, manufactured by Chuo Rika) in 40 parts by weight of isopropyl alcohol. The resultant was applied using a gravure coater and dried to obtain a laminate C having a first adhesive layer.
- the first adhesive layer had a thickness of 3 zm when dried.
- the laminate A was irradiated with a laser beam having a wavelength of 514 nm to record a Lippmann hologram on the hologram recording layer, and heated at 100 ° C. for 10 minutes.
- the peelable PET film of the laminate A was peeled off from the laminate A, the adhesive layer side of the laminate B was bonded to the peeled surface, and a heat lamination treatment was performed at 80 ° C to obtain a laminate A. And the laminate B were adhered.
- a laminate D having a laminate structure of PET film / adhesive layer / volume hologram layer / PET finolem was obtained.
- the laminate D obtained above was irradiated with a high-pressure mercury lamp to fix the volume hologram, and then the PET film in contact with the volume hologram layer was peeled off from the laminate.
- the laminate C and the laminate C were adhered by laminating the first adhesive layer side of the laminate C to the release surface and performing heat lamination at 100 ° C.
- a transparent volume hologram transfer layer having a laminated structure of PET film Z bonding layer / volume hologram layer Z first adhesive layer Z peelable PET film / was formed.
- the peelable PET film of the volume hologram transfer layer obtained above was peeled off, and the adhesive layer side of the intermediate transfer medium obtained above was bonded to the peeled surface (that is, the surface of the first adhesive layer).
- HEAT SEAL TESTER made by TESTER SANGYO
- the volume hologram transfer layer and the intermediate transfer medium were stuck.
- the heat sealing conditions were as follows.
- the PET film provided on the volume hologram transfer layer side was peeled off from the one where the volume hologram transfer layer and the intermediate transfer medium were attached.
- a protective layer thermal transfer sheet having a laminated structure of PET finolem / peeling layer / protective layer / adhesive layer / first adhesive layer / volume hologram layer / adhesive layer was obtained.
- the adhesive layer of the thermal transfer sheet obtained above was bonded to a PVC card (manufactured by Dai Nippon Printing), and was laminated under the following conditions.
- Printing conditions Print sample images under standard printing conditions (implemented in TEST PRINT mode)
- an image may be printed in advance using a sublimation-type thermal transfer printer on a PVC force that has been subjected to lamination under the above processing conditions.
- the PET film of the thermal transfer sheet was peeled off to obtain a protective layer-equipped force having a volume hologram.
- Example 1 Peelability of the volume hologram transfer layer obtained in Example 1
- the same PVC card as that used in Example 1 was attached to the release surface (that is, the first adhesive layer surface), and the laminate was performed under the following conditions.
- Printing conditions Print sample images under standard printing conditions (implemented in TEST PRINT mode)
- a thermal transfer sheet without a protective layer was laminated on a PVC card, and then the PET film of the thermal transfer sheet was peeled off to obtain a card without a protective layer having a volume hologram.
- Example 1 the wear resistance of the cards having the volume holograms obtained in Example 1 and Comparative Example 1 was evaluated.
- the abrasion resistance was evaluated by rotating the grinding wheel 300 times on each of the above cards, and then visually checking whether the images on the cards were destroyed.
- Example 1 card No destruction of the image was observed.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP04807142.7A EP1702766B1 (en) | 2003-12-24 | 2004-12-16 | Thermal transfer sheet and method for producing same |
US10/584,723 US7704576B2 (en) | 2003-12-24 | 2004-12-16 | Thermal transfer sheet, process for producing the same, and image formed object produced by transfer of said thermal transfer sheet |
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JP2003-426702 | 2003-12-24 | ||
JP2003426702 | 2003-12-24 |
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US (1) | US7704576B2 (ja) |
EP (1) | EP1702766B1 (ja) |
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JP2007028283A (ja) | 2005-07-19 | 2007-02-01 | Matsushita Electric Ind Co Ltd | 撮像装置 |
JP4900150B2 (ja) * | 2007-09-18 | 2012-03-21 | 大日本印刷株式会社 | 脆質ラベル及びその製造方法 |
JP4968467B2 (ja) * | 2007-09-19 | 2012-07-04 | 大日本印刷株式会社 | 中間転写記録媒体及びフィルム転写シート |
JP5413236B2 (ja) * | 2010-02-19 | 2014-02-12 | 凸版印刷株式会社 | 画像表示体及び個人認証媒体及びブランク媒体 |
CN102472848B (zh) | 2009-08-13 | 2014-08-27 | 凸版印刷株式会社 | 图像显示体及带标签的物品 |
WO2012029590A1 (ja) * | 2010-08-31 | 2012-03-08 | 大日本印刷株式会社 | 中間転写媒体 |
JP5565251B2 (ja) * | 2010-10-01 | 2014-08-06 | 凸版印刷株式会社 | 個人認証媒体 |
JP5909847B2 (ja) * | 2010-12-15 | 2016-04-27 | 凸版印刷株式会社 | 中間転写媒体、個人認証媒体および個人認証媒体の製造方法 |
JP6273669B2 (ja) * | 2012-11-13 | 2018-02-07 | 大日本印刷株式会社 | 光回折層積層体シート、カードの製造方法 |
JP6849031B2 (ja) * | 2019-08-30 | 2021-03-24 | 大日本印刷株式会社 | 熱転写シート、中間転写媒体、該熱転写シート又は該中間転写媒体を用いて製造した印画物、印画物の製造方法及び印画物製造システム |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08118826A (ja) | 1994-10-28 | 1996-05-14 | Dainippon Printing Co Ltd | 転写シート |
JP4435312B2 (ja) * | 1996-10-08 | 2010-03-17 | 凸版印刷株式会社 | 不正防止シール |
EP0943462B1 (en) * | 1998-03-17 | 2005-07-13 | Dai Nippon Printing Co., Ltd. | Method for forming printed product |
JP2001010231A (ja) * | 1999-06-29 | 2001-01-16 | Konica Corp | 画像記録体、リボン及び画像記録体形成方法 |
JP4683597B2 (ja) | 2000-06-23 | 2011-05-18 | 大日本印刷株式会社 | ホログラム転写箔 |
US7101644B2 (en) * | 2000-06-23 | 2006-09-05 | Dai Nippon Printing Co., Ltd. | Hologram transfer foil |
JP2003053898A (ja) | 2001-08-20 | 2003-02-26 | Dainippon Printing Co Ltd | 基材シートを剥離し得る貼付け用シート |
JP4177580B2 (ja) | 2002-01-29 | 2008-11-05 | 大日本印刷株式会社 | 中間転写記録媒体 |
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2004
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- 2004-12-16 JP JP2004364394A patent/JP2005208601A/ja active Pending
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JP2009149098A (ja) | 2009-07-09 |
JP5115489B2 (ja) | 2013-01-09 |
WO2005068218A1 (ja) | 2005-07-28 |
US20070160912A1 (en) | 2007-07-12 |
EP1702766B1 (en) | 2016-10-12 |
JP2005208601A (ja) | 2005-08-04 |
EP1702766A1 (en) | 2006-09-20 |
US7704576B2 (en) | 2010-04-27 |
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