Recording medium, decorative sheet, and method for manufacturing decorative article

Abstract

To provide a recording medium with which a high quality decorative article can be produced, a decorative sheet with which a high quality decorative article can be produced, and a production method of a decorative article capable of producing a high quality decorative article.SOLUTION: A recording medium 100 includes a release part 20 and a recording part 10. The recording part 10 can be separated from the release part 20. The recording part 10 includes an urethane substrate 1A and a reception layer 5. A decorative sheet 200 includes a release part 20 and a decorative part 110. The decorative part 110 can be separated from the release part 20. The decorative part 110 includes an urethane substrate 1A and an image layer 105 having a thermal transfer image 150.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a method for manufacturing a recording medium, a decorative sheet, and a decorative article.

Background Art

[0002] As a recording medium capable of manufacturing a printed matter, a recording medium having an image layer is known. Images can be formed on the image layer of the recording medium by various image forming methods. As the image forming methods, a sublimation transfer method, a melt transfer method, an inkjet printing method, a toner printing method, and the like are known.

[0003] Attempts have been made to use, as a decorative sheet, a printed matter manufactured using a recording medium, and to use this decorative sheet for decorating an article that is an object to be decorated. As methods for decorating an article using a decorative sheet, in-mold molding, insert molding, and the like are known. Patent Document 1 proposes a decorative sheet having a cured image layer of an inkjet ink composition provided on a resin sheet, and a method for manufacturing a decorative article using this decorative sheet.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The main problems of the present disclosure are to provide a recording medium capable of manufacturing a high-quality decorative article, a decorative sheet capable of manufacturing a high-quality decorative article, and a method for manufacturing a decorative article capable of manufacturing a high-quality decorative article.

Means for Solving the Problems

[0006] The recording medium of the present disclosure is a recording medium having a release portion and a recording portion, wherein the recording portion can be separated from the release portion, the recording portion includes a base material and a receiving layer, and the base material contains polyurethane and and the elongation rate of the recording part is 150% or more and 800% or less. The recording medium of the present disclosure is a recording medium having a release part and a recording part, the recording part can be separated from the release part, the recording part includes a base material and a receiving layer, the base material contains polyurethane, and the elongation rate of the release part is lower than that of the recording part.

[0007] The decorative sheet of the present disclosure is a decorative sheet having a release portion and a decorative portion, wherein the decorative portion can be separated from the release portion, the decorative portion includes a base material and an image layer having a heat transfer image, and the base material contains polyurethane and and the decorative part includes an adhesive layer provided on the image layer, and the decorative part includes a durable layer provided between the image layer and the adhesive layer. The decorative sheet of the present disclosure is a decorative sheet having a release part and a decorative part, the decorative part can be separated from the release part, the decorative part includes a base material and an image layer having a heat transfer image, the base material contains polyurethane, and the decorative part includes a durable layer provided on the image layer. The decorative sheet of the present disclosure is a decorative sheet having a release part and a decorative part, the decorative part can be separated from the release part, and the decorative part includes a base material and an image layer having a heat transfer image. When the surface of the image layer on the base material side is the lower surface and the opposite surface is the upper surface, the layer in contact with the image layer on the upper surface of the image layer contains a resin having a glass transition temperature (Tg) of 50°C or higher. The decorative sheet of the present disclosure is a decorative sheet having a release part and a decorative part, the decorative part can be separated from the release part, and the decorative part includes a base material and an image layer having a heat transfer image. the base material contains polyurethane, and the elongation rate of the decorative part is 150% or more and 800% or less.

[0008] The method for manufacturing a decorative article of the present disclosure is An image forming step of forming a heat transfer image on the receiving layer of a recording medium having a release part and a recording part, the recording part can be separated from the release part, the recording part includes a base material and a receiving layer, the base material contains polyurethane, and the elongation rate of the recording part is 150% or more and 800% or less; a separation step of separating the recording part from the release part after the image forming step; and an integration step of integrating the recording part and a decoration object after the separation step. When the surface of the recording part on the release part side is the first surface and the opposite surface is the second surface, the recording part and the decoration object are integrated on the second surface side of the recording part. The method for manufacturing a decorative article of the present disclosure is A release portion and a recording portion are provided, the recording portion can be separated from the release portion, the recording portion includes a base material and a receiving layer, the base material contains polyurethane, an image forming step of forming a thermal transfer image on the receiving layer of the recording medium in which the elongation rate of the release portion is lower than the elongation rate of the recording portion, a separation step of separating the recording portion from the release portion after the image forming step, and an integration step of integrating the recording portion and a decoration target after the separation step are included. When the surface of the recording portion on the release portion side is defined as the first surface and the surface on the opposite side is defined as the second surface, the recording portion and the decoration target are integrated on the second surface side of the recording portion.

Advantages of the Invention

[0009] The recording medium, decorative sheet, and method for manufacturing a decorative sheet of the present disclosure can manufacture high-quality decorative articles.

Brief Description of the Drawings

[0010]

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Mode for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings and the like. Note that the present disclosure can be implemented in many different modes and is not construed as being limited to the description of the embodiments exemplified below. Also, for the purpose of making the description clearer, the drawings may schematically represent the width, thickness, shape, etc. of each part compared to the actual mode, but this is merely an example and does not limit the interpretation of the present disclosure. Further, in the present specification and each figure, the same reference numerals may be assigned to the same elements as those described above with respect to the previously presented figures, and detailed descriptions may be omitted as appropriate. Also, for the sake of convenience in description, terms such as up or down are used, but the up and down directions may be reversed. The same applies to the left and right directions.

[0012] <<Recording Medium>> The recording medium 100 according to the embodiment of the present disclosure (hereinafter referred to as the recording medium of the present disclosure) has a release part 20 and a recording part 10. The recording part 10 can be separated from the release part 20. FIG. 1 and FIG. 2 are schematic cross-sectional views showing an example of a recording medium 100 of the present disclosure. The recording medium 100 of the present disclosure is not limited to the illustrated form. The configurations of the respective figures may be appropriately combined. Other configurations may be added to each figure. Some configurations may be removed from each figure.

[0013] The recording medium 100 of the present disclosure can manufacture an ornament 400. The recording medium 100 of the present disclosure can manufacture a decorative sheet 200. As an example, an ornament 400 manufactured using the recording medium 100 of the present disclosure is an integrated product of a decoration target 300 and a recording unit 10. The recording unit 10 integrated with the decoration target 300 has a thermal transfer image 150 formed on a receiving layer 5.

[0014] <Recording unit> The recording unit 10 includes a base material 1 and a receiving layer 5. The recording unit 10 may include components other than the base material 1 and the receiving layer 5.

[0015] (Base material) The base material 1 has a single-layer structure including a urethane base material 1A (see FIGS. 1 and 2) or a laminated structure. The urethane base material 1A contains polyurethane. When manufacturing an ornament 400 by integrating the recording unit 10 and the decoration target 300, the adhesion between the recording unit 10 and the decoration target 300 has a relationship with the followability of the recording unit 10 with respect to the decoration target 300. The recording unit 10 with good followability to the decoration target 300 has good adhesion to the decoration target 300. The adhesion in the present disclosure is an index indicating whether the recording unit 10 can be integrated along the shape of the decoration target 300 and whether there is no lifting or peeling in the integrated recording unit. The recording unit 10 of the recording medium 100 of the present disclosure can improve the followability to the decoration target 300 with the urethane base material 1A. The recording medium 100 of the present disclosure forms a thermal transfer image 150 on the receiving layer 5 of the recording unit 10, and then, when the recording unit 10 and the decoration target 300 are integrated, the adhesion between the recording unit 10 and the decoration target 300 is good. The recording medium 100 of the present disclosure can manufacture high-quality ornaments 400. The ornament 400 manufactured using the recording medium 100 of the present disclosure has the release portion 20 separated therefrom. Hereinafter, when referring to the followability of the recording unit 10, it means the followability of the recording unit 10 to the object to be decorated 300.

[0016] As an example, the urethane base material 1A contains polyurethane obtained from a composition containing polyester polyol and isocyanate. This urethane base material 1A has good heat resistance. Although not limited to isocyanates, aliphatic isocyanates, alicyclic isocyanates, etc. are preferred. The urethane base material 1A obtained from the composition containing this isocyanate can suppress yellowing of the urethane base material 1A. As an example, the urethane base material 1A has voids.

[0017] The recording unit 10 of the recording medium 100 of the present disclosure may include other base materials other than the urethane base material 1A. The other base material may be a resin base material or a paper base material. Even when the base material of the recording unit 10 of the present disclosure has a laminated structure including the urethane base material 1A and other base materials, the followability of the recording unit 10 can be improved by the amount including the urethane base material 1A. In a preferred form of the recording unit 10, the base material 1 does not include a paper base material. In a preferred form of the recording unit 10, the base material 1 has a single-layer structure including only the urethane base material 1A (see FIGS. 1 and 2). As an example, the base material 1 has a laminated structure including the urethane base material 1A, and any surface located closer to the release portion 20 than the urethane base material 1A is a peeling interface. As an example, the base material 1 has a laminated structure in which another base material, a release layer, and the urethane base material 1A are laminated in this order from the release portion 20 side. In this form of the base material 1, the surface of the urethane base material 1A on the release layer side is the peeling interface, and the layer located closer to the receiving layer 5 than the peeling interface constitutes the transfer layer. These forms of the base material 1 can manufacture ornaments integrated with the object to be decorated by transfer.

[0018] The softening point of the urethane base material 1A is preferably 100°C or higher. The urethane base material 1A in this form has good heat resistance. The recording medium 100 having the urethane base material 1A in this form can increase the thermal energy when forming a thermal transfer image on the receiving layer 5. The recording medium 100 having the urethane base material 1A in this form can form a thermal transfer image on the receiving layer 5 at high speed. The urethane base material 1A in this form can increase the drying temperature when a coating liquid is applied on the urethane base material 1A and dried to form the receiving layer 5, and has good manufacturing suitability.

[0019] There is no limitation on the thickness of the urethane base material 1A, and it may be determined in consideration of the thickness of the recording portion 10. As an example, the thickness of the urethane base material 1A is 3 μm or more and 150 μm or less, preferably 5 μm or more and 50 μm or less. The urethane base material 1A in this form can make the followability of the recording portion 10 better. A more preferable thickness of the urethane base material 1A is 10 μm or more and 35 μm or less. The urethane base material 1A in this form can make the followability of the recording portion 10 better, and the workability is good when integrating the recording portion 10 on which the thermal transfer image 150 is formed on the receiving layer 5 with the decoration object 300. As an example, the base material 1 is a single-layer structure or a laminated structure including the above urethane base material 1A, and the thickness is 100 μm or less. Preferably it is 50 μm or less, and more preferably 10 μm or more and 40 μm or less.

[0020] As an example, the urethane base material 1A has transparency. Transparency includes colorless transparency, colored transparency, and semi-transparency. As an example, the base material 1 is a laminated structure including the urethane base material 1A, and the entire base material 1 has transparency. As an example, the urethane base material 1A contains a colorant. Examples of the colorant include various inorganic pigments, dyes, etc. As an example, the urethane base material 1A does not have transparency.

[0021] As an example, the urethane base material 1A contains a plasticizer. Examples of plasticizers include dioctyl phthalate, diisononyl phthalate, octyl decyl phthalate, diisodecyl phthalate, di-2-ethylhexyl adipate, diisononyl adipate, diisodecyl adipate, di-2-ethylhexyl azelate, di-2-ethylhexyl sebacate, tricresyl phosphate, tritolyl phosphate, tributyl phosphate, tri-2-ethylhexyl phosphate, octyldiphenyl phosphate, chlorinated paraffin, chlorinated fatty acid ester, and epoxidized soybean oil, etc.

[0022] As an example, the urethane base material 1A is a film. As an example, the urethane base material 1A is formed by applying and drying a coating liquid.

[0023] (Receiving layer) The receiving layer 5 contains a component capable of receiving a sublimable dye. On the receiving layer 5, a thermal transfer image 150 can be formed by sublimation transfer. Sublimation transfer is an image forming method in which a thermal transfer sheet provided with a color material layer containing a sublimable dye is used, thermal energy corresponding to image information is applied to the thermal transfer sheet, and the sublimable dye contained in the color material layer is transferred to the receiving layer 5 to form the thermal transfer image 150.

[0024] Examples of components capable of receiving a sublimable dye include acrylic resin, acrylic-styrene copolymer, polyolefin, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, polyacrylate ester, polyester, polystyrene, polyamide, ethylene, copolymer of olefin and other vinyl polymers, ionomer, cellulose resin, polycarbonate, epoxy resin, polyvinyl pyrrolidone, polyvinyl alcohol, and gelatin, etc. Examples of polyolefin include polypropylene, etc. Examples of polyester include polyethylene terephthalate, and polybutylene terephthalate, etc. Components capable of receiving a sublimable dye may be other than these. The components contained in the receiving layer 5 may be one kind or two or more kinds.

[0025] The receptive layer 5 in a preferred form contains at least one of polyolefin, vinyl chloride, vinyl chloride-vinyl acetate copolymer, and polyester. The receptive layer 5 in this form can maintain good followability of the recording portion 10 applied with the urethane base material 1A. The receptive layer 5 in this form can suppress cracking, etc. of the receptive layer 5 when the recording portion 10 and the object to be decorated 300 are integrated. The receptive layer 5 in this form can improve the quality of the thermal transfer image 150 formed on the receptive layer 5.

[0026] As an example, the receptive layer 5 contains a plasticizer. The receptive layer 5 containing a plasticizer can make the followability of the recording portion 10 better. As the plasticizer, the plasticizers described for the base material 1 above can be appropriately selected and used.

[0027] Although there is no limitation on the thickness of the receptive layer 5, it is preferably 0.1 μm or more and 10 μm or less. There is no limitation on the method for forming the receptive layer 5, and it can be formed by applying and drying a coating liquid. Examples of the coating method of the coating liquid include a gravure printing method, a screen printing method, a reverse coating method using a gravure plate, etc. Also, other coating methods may be used. The same applies to the coating methods of various coating liquids.

[0028] (Primer layer) As an example, the recording portion 10 includes a primer layer provided between the base material 1 and the receptive layer 5. As an example, the base material has a laminated structure including a urethane base material and includes a primer layer provided between the base materials. Examples of the components of the primer layer include polyurethane, polyolefin, polyester, acrylic resin, epoxy resin, urea resin, melamine resin, phenol resin, vinyl chloride-vinyl acetate copolymer, polyimide, polyvinyl acetate, cyanoacrylate, and synthetic rubber, etc. Examples of the polyolefin include α-olefin-maleic anhydride copolymer, etc. The primer layer in a preferred form contains at least one of polyurethane, polyolefin, and vinyl chloride-vinyl acetate copolymer. The primer layer in this form can maintain good followability of the recording portion 10 provided on the urethane substrate 1A.

[0029] There is no limitation on the thickness of the primer layer, but it is preferably 0.5 μm or more and 10 μm or less. The primer layer can be formed by applying and drying a coating liquid.

[0030] (Adhesive layer) As an example, the recording portion 10 has a laminated structure in which the adhesive layer 6, the base material 1, and the receiving layer 5 are laminated in this order from the release portion 20 side (see FIG. 2). The recording portion 10 in this form can be integrated with the object 300 to be decorated by the adhesive layer 6.

[0031] Examples of the components of the adhesive layer 6 include acrylic resin, vinyl resin, polyester, polyurethane, polyamide, epoxy resin, rubber-based resin, ionomer resin, and silicone resin. The preferred form of the adhesive layer 6 contains either or both of polyester and polyurethane. The adhesive layer 6 in this form can maintain good followability of the recording portion 10 provided on the urethane substrate 1A.

[0032] There is no limitation on the thickness of the adhesive layer 6, but it is preferably 5 μm or more and 20 μm or less, and more preferably 6 μm or more and 10 μm or less. The adhesive layer 6 can be formed by applying and drying a coating liquid. An adhesive film may also be used.

[0033] (Release layer) As an example, the recording portion 10 has a laminated structure in which the release layer, the base material 1, and the receiving layer 5 are laminated in this order from the release portion 20 side. The recording portion 10 in this form is suitable when the surface of the release portion 20 on the recording portion 10 side does not have releasability.

[0034] Examples of the components of the release layer include waxes, silicone waxes, silicone resins, silicone-modified resins, fluororesins, fluorine-modified resins, polyvinyl alcohol, acrylic resins, thermally crosslinkable epoxy-amine resins, and thermally crosslinkable alkyd-amine resins. The thickness of the release layer is preferably 0.5 μm or more and 5 μm or less.

[0035] As an example, the recording unit 10 has a laminated structure in which the base material 1, the durable layer 160, and the receiving layer 5 are laminated in this order. In the recording unit 10 as an example, the surface of the durable layer 160 on the side of the base material 1 is the peeling interface. The durable layer 160 will be described later. As an example, the recording unit 10 has a laminated structure in which the base material 1, the release layer, the durable layer 160, and the receiving layer 5 are laminated in this order. In the recording unit 10 as an example, the interface between the release layer and the durable layer 160 is the peeling interface. These forms can manufacture a decorative product integrated with the object to be decorated by transfer. Also, in these forms, with the urethane base material 1A included in the base material 1, the adhesion between the recording unit 10 (the decorative part 110 of the decorative sheet 200) of the recording medium 100 and the object to be decorated 300 can be improved when manufacturing the decorative product by transfer. Instead of these forms, the base material 1 may have a laminated structure including the urethane base material 1A, and any surface located closer to the release part 20 than the urethane base material 1A may be used as the peeling interface.

[0036] The elongation rate of the recording unit 10 as an example is 150% or more and 800% or less, preferably 500% or more and 750% or less. The recording unit 10 in this form has better followability. The elongation rate of the recording unit is the elongation rate obtained by a test method conforming to JIS-K-7127 (1999). The elongation rate of the recording unit can be calculated by the following formula (1). Elongation rate (%) = 100×(L - L0) / L0 ··· Formula (1) In Formula (1), L is the length when the recording unit is pulled at a speed of 200 mm / min using a tensile tester until the recording unit is cut (broken). In Formula (1), L0 is the length of the recording unit before being pulled by the tensile tester. A tensile testing machine such as a tensilon universal material testing machine can be used. The elongation rates of the recording medium 100, the release portion 20 described later, and the decorative portion 110 can be measured in the same manner. In this case, the above recording portion may be read as the recording medium 100, the release portion 20, and the decorative portion 110.

[0037] As an example, the recording portion 10 has transparency, and the thermal transfer image 150 formed on the receiving layer 5 can be visually recognized from the substrate 1 side. As an example, the recording portion 10 does not have transparency, and the thermal transfer image 150 formed on the receiving layer 5 cannot be visually recognized from the substrate 1 side.

[0038] As an example, the thickness of the recording portion 10 is thicker than 3 μm. As an example, the thickness of the recording portion 10 is thicker than 5 μm and 160 μm or less. The thickness of the recording portion 10 in a preferred form is 10 μm or more and 60 μm or less, more preferably 10 μm or more and 40 μm or less. The recording portion 10 in this form has good workability when integrating the recording portion 10 having the thermal transfer image 150 formed on the receiving layer 5 with the object to be decorated 300.

[0039] <Release portion> The recording medium 100 of the present disclosure has a release portion 20 (see FIGS. 1 and 2). The release portion 20 can be separated from the recording portion 10. The recording medium 100 of the present disclosure can reduce the followability of the recording portion 10 before the release portion is separated with the release portion 20. The recording medium 100 of the present disclosure can suppress the elongation of the recording portion 10 before the release portion is separated with the release portion 20. The recording medium 100 of the present disclosure can reduce the elongation rate of the recording medium 100 with the release portion 20. The recording medium 100 of the present disclosure can suppress the elongation of the recording portion 10 when forming a thermal transfer image with the release portion 20, and can form a high-quality thermal transfer image 150 on the receiving layer 5 of the recording portion 10.

[0040] The recording medium 100 of the present disclosure can adjust the thickness of the entire recording medium 100 with the release portion 20. The release portion 20 of the recording medium 100 of the present disclosure can make the overall thickness of the recording medium 100 suitable for the conveyance suitability of the printer used for forming the thermal transfer image 150.

[0041] The release portion 20 as an example has a single-layer structure or a laminated structure including a release portion base material. Examples of the release portion base material include a resin base material and a paper base material. Examples of the resin base material include polyesters such as polyethylene terephthalate and polyethylene naphthalate, polyolefins, polyvinyl chloride, polymethacrylate, polypropylene, polycarbonate, cellulose acetate, polyethylene derivatives, polyamides, and polymethylpentene. These resin base materials may be stretched or unstretched. Examples of the paper base material include fine paper, coated paper, resin-coated paper, art paper, cast-coated paper, cardboard, synthetic paper (polyolefin-based, polystyrene-based), synthetic resin or emulsion-impregnated paper, synthetic rubber latex-impregnated paper, synthetic resin-filled paper, and cellulose fiber paper.

[0042] The release portion 20 as an example includes a release film, a separator paper, a separator film, a peeling film, a peeling paper, and the like.

[0043] A preferred form of the release portion base material is a paper base material such as a separator paper. The release portion base material in this form has good heat resistance and can form a high-quality thermal transfer image 150 on the receiving layer 5 of the recording portion 10.

[0044] A preferred form of the release portion base material includes a paper base material. The release portion 20 in this form can make the elongation of the entire recording medium 100 lower.

[0045] The release portion 20 as an example has a laminated structure in which the release portion base material includes a paper base material and a resin base material.

[0046] The release portion 20 as an example includes a void layer. The release portion 20 including a void layer can form a high-quality thermal transfer image 150 with a high density on the receiving layer 5 of the recording portion 10. Examples of the void layer include a film substrate having voids inside (which may be a resin substrate). The void layer can be exemplified by a layer formed by kneading inorganic particles in a polymer and generating voids with the inorganic particles as nuclei when stretching the mixture, or by mixing a polymer incompatible with the main resin and generating voids when stretching the mixture. The polymer may be one type or two or more types. The voids in the void layer may be referred to as microvoids or pores in some cases. The void layer may be referred to as a porous layer, a porous film, etc. in some cases.

[0047] The release portion 20 as an example has a laminated structure including a release portion substrate and a separation auxiliary layer. The separation auxiliary layer as an example is a release layer. The release layer can be appropriately selected and used from the release layers described in the recording portion 10. The separation auxiliary layer as an example is an adhesive layer. In this form of the release portion 20, the adhesion between the release portion substrate and the separation auxiliary layer is configured to be higher than the adhesion between the separation auxiliary layer and the recording portion 10, and the release portion 20 can be separated from the recording portion 10. Examples of the components of the adhesive layer include acrylic resins, vinyl resins, polyesters, urethane resins, polyamides, epoxy resins, rubber-based resins, ionomer resins, silicone resins, etc. The separation auxiliary layer as an example is a melt-extruded resin layer. The melt-extruded resin layer is a resin layer formed by extruding molten resin in a film shape by an extruder. Examples of the extruder include a T-die. Examples of the extrusion method include conventionally known extrusion methods such as the extrusion coating lamination method, the sand lamination method, and the tandem lamination method.

[0048] In a preferred form of the release portion 20, the elongation rate of the entire release portion 20 is lower than the elongation rate of the recording portion 10. In this form of the release portion 20, the elongation rate of the entire recording medium 100 can be made lower, and a high-quality thermal transfer image 150 can be formed by the receiving layer 5 of the recording portion 10.

[0049] Although there is no limitation on the elongation rate of the release portion 20, it is preferably 0% or more and 130% or less, and more preferably 0% or more and 100% or less. The release portion 20 in a preferred form includes a release portion base material having an elongation rate of 0% or more and 130% or less, and more preferably includes a release portion base material having an elongation rate of 0% or more and 100% or less. The release portion 20 in this form can form a thermal transfer image with suppressed printing wrinkles on the receiving layer 5 of the recording portion 10.

[0050] The thickness of the release portion 20 can be appropriately determined in consideration of the thickness of the recording medium 100 and the thickness of the recording portion 10.

[0051] (Thickness of the recording medium) Although there is no limitation on the thickness of the recording medium 100 of the present disclosure, it is preferably 50 μm or more and 300 μm or less, and more preferably 100 μm or more and 300 μm or less. The recording medium 100 in this form has good transportability when forming the thermal transfer image 150 with a printer.

[0052] (Elongation rate of the recording medium) There is no limitation on the elongation rate of the recording medium 100 of the present disclosure, and it may be lower than the elongation rate of the recording portion 10. The elongation rate of the recording medium 100 in a preferred form is lower than the elongation rate of the recording portion 10 and is 0% or more and 130% or less, and more preferably 0% or more and 100% or less. The recording medium 100 in this form can form a high-quality thermal transfer image 150 by the receiving layer 5 of the recording portion 10.

[0053] [[Decoration sheet]] The decoration sheet 200 according to the embodiment of the present disclosure (hereinafter referred to as the decoration sheet of the present disclosure) has a release portion 20 and a decoration portion 110. Figs. 3 to 7 are schematic cross-sectional views showing an example of the decoration sheet 200 of the present disclosure. The decoration sheet 200 of the present disclosure is not limited to the illustrated form. The configurations in each figure may be appropriately combined. Other configurations may be added to each figure. Some configurations may be removed from each figure.

[0054] The decoration sheet 200 of the present disclosure can manufacture a decoration 400 in which the decoration portion 110 and the object to be decorated 300 are integrated. The decorative part 110 of the decorative sheet 200 of the present disclosure has good followability to the object to be decorated 300. The decorative sheet 200 of the present disclosure can manufacture a decorative article 400 with good adhesion between the decorative part 110 and the object to be decorated 300. As an example of the decorative sheet 200 of the present disclosure, a thermal transfer image 150 is formed on the receiving layer 5 of the recording part 10 of the recording medium 100 of the present disclosure.

[0055] <Decorative part> As an example, the decorative part 110 has a base material 1 and an image layer 105 (see FIGS. 3 to 7). The decorative part 110 may have other configurations. As an example, the decorative part 110 has at least one of an adhesive layer 6, a durable layer 160, and an adhesive layer 170. The base material 1 has a single-layer structure or a laminated structure including a urethane base material 1A. The image layer 105 has a thermal transfer image 150.

[0056] The base material 1 of the decorative part 110 includes a urethane base material 1A. The base material 1 can be appropriately selected and used from the base materials 1 described in the recording part 10 of the recording medium 100 of the present disclosure above. The image layer 105 of the decorative part 110 is formed by forming a thermal transfer image 150 on the receiving layer 5. The receiving layer 5 can be appropriately selected and used from the receiving layers 5 described in the recording part 10 of the recording medium 100 of the present disclosure.

[0057] As an example, the decorative part 110 has a laminated structure in which an adhesive layer 6, a base material 1, and an image layer 105 are laminated in this order (see FIG. 4). The adhesive layer 6 can be appropriately selected and used from the adhesive layers 6 described in the recording part 10 of the recording medium 100 of the present disclosure above.

[0058] As an example, the decorative part 110 has a laminated structure in which a base material 1, an image layer 105, and an adhesive layer 170 are laminated in this order (see FIG. 5). As an example, the decorative part 110 has a laminated structure in which a base material 1, an image layer 105, and a durable layer 160 are laminated in this order (see FIG. 6). As an example, the decorative part 110 has a laminated structure in which a base material 1, an image layer 105, a durable layer 160, and an adhesive layer 170 are laminated in this order (see Fig. 7). These forms may be combined. As an example, the decorative part 110 has an adhesive layer 6 in contact with the release part 20 in the forms shown in Figs. 6 and 7.

[0059] (Adhesive layer) As an example, the decorative part 110 has an adhesive layer 170 located on the surface opposite to the release part 20. With the decorative part 110 of this form, simply by overlapping the decorative object 300, a decorative product 400 in which the decorative part 110 and the decorative object 300 are integrated by the adhesive layer 170 can be manufactured.

[0060] The adhesive layer 170 contains an adhesive component. Examples of the adhesive component include acrylic resin, vinyl chloride-vinyl acetate copolymer, vinyl acetate, polyolefin, polyester, epoxy resin, polyimide, and synthetic rubber. Further, the adhesive component contained in the adhesive layer 170 may be one kind or two or more kinds. The adhesive layer 170 may be an adhesive film or an adhesive sheet. The adhesive layer 170 in a preferred form contains at least one of vinyl chloride-vinyl acetate copolymer, vinyl acetate resin, polyolefin, and polyester. The adhesive layer 170 of this form can maintain good followability of the decorative part 110 applied with the urethane base material 1A.

[0061] The adhesive layer 170 may have a single-layer structure or a laminated structure in which layers having adhesiveness are laminated. As an example, the adhesive layer 170 has a laminated structure in which layers having adhesiveness are provided on both sides of a member having no adhesiveness. As an example, the adhesive layer 170 has a laminated structure in which layers having adhesiveness are provided on both sides of a film or the like.

[0062] The adhesive layer 170 can be formed by applying and drying a coating liquid. An adhesive film, an adhesive sheet, etc. may be pasted to form the adhesive layer 170. The adhesive layer 170 may be formed by transfer using a transfer sheet capable of transferring the adhesive layer 170. The formation of the adhesive layer 170 for attaching the film or the adhesive sheet, and the formation of the adhesive layer 170 by transfer are preferable because they can suppress the bleeding of the thermal transfer image 150 formed on the image layer 105 as compared with the method of applying and drying the coating liquid. The thickness of the adhesive layer 170 is preferably 1 μm or more and 1000 μm or less, more preferably 1 μm or more and 10 μm or less.

[0063] (Durable layer) As an example, the decorative part 110 has a durable layer 160 provided on the image layer 105. The durable layer 160 may have a single-layer structure or a laminated structure. In this form of the decorative part 110, the thermal transfer image 150 of the image layer 105 can be protected by the urethane base material 1A and the durable layer 160. In this form of the decorative part 110, when the surface on the release part 20 side of the decorative part 110 is defined as the first surface and the opposite surface is defined as the second surface, and the decorative part 110 is integrated with the object to be decorated 300 on the second surface side of the decorative part 110 using the adhesive layer 170, the migration of the components of the thermal transfer image 150 of the image layer 105 to the adhesive layer 170 side can be suppressed. In this form of the decorative part 110, when the decorative part 110 is integrated with the object to be decorated 300 on the second surface side of the decorative part 110 using the adhesive layer 170, the bleeding of the thermal transfer image 150 of the image layer 105 can be suppressed.

[0064] As an example, the decorative part 110 has a laminated structure in which the base material 1, the image layer 105, the durable layer 160, and the adhesive layer 170 are laminated in this order. In this form of the decorative part 110, the migration of the components of the thermal transfer image 150 of the image layer 105 to the adhesive layer 170 side can be suppressed. In this form of the decorative part 110, the bleeding of the thermal transfer image 150 of the image layer 105 can be suppressed.

[0065] As an example, the decorative part 110 has a laminated structure in which the base material 1, the durable layer 160, and the image layer 105 are laminated in this order. As an example, the decorative part 110 has a laminated structure in which the base material 1, the durable layer 160, the image layer 105, and the adhesive layer 170 are laminated in this order. As an example, for the decorative part 110, the surface of the base material 1 side of the durable layer 160 is the peeling interface. In this form, a decorative product integrated with the object to be decorated can be manufactured by transfer. As an example, the decorative part 110 has a laminated structure in which the base material 1, the release layer, the durable layer 160, and the image layer 105 are laminated in this order. As an example, the decorative part 110 has a laminated structure in which the base material 1, the release layer, the durable layer 160, the image layer 105, and the adhesive layer 170 are laminated in this order. As an example, for the decorative part 110, the interface between the release layer and the durable layer 160 is the peeling interface. In this form, a decorative product integrated with the object to be decorated can be manufactured by transfer. Instead of this form, the base material 1 may have a laminated structure including the urethane base material 1A, and the surface located closer to the release part 20 than the urethane base material 1A may be the peeling interface.

[0066] As components of the durable layer 160, it contains acrylic resin, polyester, polyurethane, vinyl chloride-vinyl acetate copolymer, polyolefin, cellulose resin, polyvinylpyrrolidone, polyvinyl alcohol, etc. The components contained in the durable layer 160 may be one kind or two or more kinds. The durable layer 160 in a preferred form contains at least one of polyester, polyurethane, vinyl chloride-vinyl acetate copolymer, and polyolefin. The durable layer 160 in this form can maintain good followability of the decorative part 110 provided by the urethane base material 1A.

[0067] The durable layer in a preferred form is a single-layer structure or a laminated structure, and includes a first layer X that satisfies the following relational expression (1). The durable layer in this form can suppress bleeding of the thermal transfer image. As an example, the durable layer is a laminated structure, and at least one layer is a first layer X that satisfies the following relational expression (1). When the durable layer is a laminated structure, it is preferable that the layer closest to the adhesive layer is the first layer X. As an example, the durable layer is a laminated structure, and all layers constituting the durable layer are the first layer X. As an example, the durable layer is in contact with the adhesive layer. As an example, for the durable layer, the first layer X is in contact with the adhesive layer.

[0068] The glass transition temperature (Tg) of the main component of the adhesive layer < the glass transition temperature (Tg) of the main component of the first layer X... (Relational expression (1)). The main component referred to here means the component with the highest content among the components contained in the adhesive layer. The same applies to the main component of the durable layer. As an example, the first layer X contains a component with a glass transition temperature (Tg) of 50°C or higher, preferably 60°C or higher, as the main component.

[0069] As an example, the durable layer 160 contains an ultraviolet absorber. The durable layer 160 in this form can improve the light resistance of the thermal transfer image 150 of the image layer 105. Examples of the ultraviolet absorber include benzophenone-based, benzotriazole-based, benzoate-based, triazine-based, and salicylate-based ones.

[0070] The thickness of the durable layer 160 is preferably 0.01 μm or more and 5 μm or less.

[0071] The durable layer 160 can be formed by applying and drying a coating liquid. The durable layer 160 may be formed using a sheet, a film, or the like. The durable layer 160 may be formed by transfer using a transfer sheet capable of transferring the durable layer 160.

[0072] In the decorative sheet 200 as an example of the present disclosure, when the surface on the substrate 1 side of the image layer 105 is the lower surface and the opposite surface is the upper surface, the layer in contact with the upper surface side of the image layer 105 contains a resin with a glass transition temperature (Tg) of 50°C or higher. The decorative sheet 200 in this form can suppress bleeding of the thermal transfer image. In the decorative sheet 200 as an example of the present disclosure, the image layer 105 is in contact with the adhesive layer 170, and the adhesive layer 170 contains a resin with a glass transition temperature (Tg) of 50°C or higher. In the decorative sheet 200 as an example of the present disclosure, the image layer 105 is in contact with the durable layer 160, and the durable layer 160 contains a resin with a glass transition temperature (Tg) of 50°C or higher. The content of the resin with a glass transition temperature (Tg) of 50°C or higher is preferably 50% by mass or more based on the total mass of the layer containing the resin. As an example of the present disclosure, in the decorative sheet 200, the image layer 105 is in contact with a layer having a glass transition temperature (Tg) of 50°C or higher.

[0073] As an example, the elongation rate of the decorative portion 110 is 150% or more and 800% or less, preferably 500% or more and 750% or less. The decorative portion 110 in this form has better followability.

[0074] As an example, the thickness of the decorative portion 110 is 10 μm or more and 50 μm or less. The thickness of the decorative portion 110 in a preferred form is 10 μm or more and 40 μm or less. The decorative portion 110 in a preferred form has good workability when integrating the decorative portion 110 and the object to be decorated 300.

[0075] <Release portion> The decorative sheet 200 of the present disclosure has a release portion 20. The release portion 20 can be separated from the decorative portion 110. The release portion 20 can be appropriately selected and used from the release portion 20 of the recording medium 100 of the present disclosure.

[0076] Although there is no limitation on the thickness of the decorative sheet 200, it is preferably 50 μm or more and 300 μm or less, and more preferably 100 μm or more and 300 μm or less.

[0077] Although there is no limitation on the elongation rate of the decorative sheet 200 of the present disclosure, it is preferably 0% or more and 130% or less, and more preferably 0% or more and 100% or less.

[0078] <<Method for manufacturing a decorative article>> Next, a method for manufacturing a decorative article according to an embodiment of the present disclosure (hereinafter referred to as the method for manufacturing a decorative article of the present disclosure) will be described. Figs. 8 to 13 are process diagrams showing an example of the method for manufacturing a decorative article of the present disclosure.

[0079] A method for manufacturing an ornament as an example of the present disclosure is a method for manufacturing an ornament using a recording medium 100, including an image forming step, a separating step, and an integrating step. The image forming step is a step of forming a thermal transfer image 150 on a receiving layer 5 included in a recording portion 10 of the recording medium 100. The separating step is a step of separating a release portion 20 from the recording medium 100 after the image forming step. The integrating step is a step of integrating the recording portion 10 of the recording medium 100 and an object to be decorated 300 after the separating step.

[0080] The recording medium used in the method for manufacturing an ornament of the present disclosure is the recording medium 100 of the present disclosure (see FIGS. 1, 2, 8A, 9A, 10A, 11A, 12A, 13A). The recording medium 100 is not limited to the illustrated form, and various forms of the recording medium 100 of the present disclosure can be used.

[0081] (Image forming step) The image forming step is a step of forming a thermal transfer image 150 by sublimation transfer on the receiving layer 5 of the recording medium 100 (see FIGS. 8B, 9B, 10B, 11B, 12B, 13B). The formation of the thermal transfer image 150 may be performed using a thermal transfer sheet having a sublimable dye layer. As an example of the thermal transfer sheet used in the image forming step, a sublimable dye containing a sublimable dye is provided on one surface of a support. As an example of the thermal transfer sheet, a yellow dye layer, a magenta dye layer, and a cyan dye layer are sequentially provided on one surface side of the support.

[0082] The recording medium 100 used in the method for manufacturing an ornament of the present disclosure has a release portion 20, and the elongation of the recording portion 10 when forming the thermal transfer image 150 with this release portion 20 is suppressed. The method for manufacturing an ornament of the present disclosure can suppress the elongation of the receiving layer 5 when forming the thermal transfer image 150 and can form a high-quality thermal transfer image 150 on the receiving layer 5.

[0083] (Separating step) The separation step is a step of separating the release portion 20 from the recording medium 100 after the image forming step (see FIGS. 8C, 9C, 10C, 11C, 12C, and 13C). The recording medium 100 of the present disclosure can separate the release portion 20 from the recording portion 10.

[0084] (Integration step) The integration step is a step of integrating the recording portion 10 and the object to be decorated 300 after the separation step. In the integration step, a decorated article 400 in which the recording portion 10 and the object to be decorated 300 are integrated can be manufactured. When the integration step is performed after the separation step, the recording portion 10 can be integrated with the object to be decorated 300 with better followability than when the integration is performed in the state of the recording medium.

[0085] When the surface on the release portion 20 side of the recording portion 10 is defined as the first surface and the opposite surface is defined as the second surface, the recording portion 10 may be integrated with the object to be decorated 300 on the first surface side of the recording portion 10 (see FIGS. 12D and 13D), or the recording portion 10 may be integrated with the object to be decorated 300 on the second surface side of the recording portion 10 (see FIGS. 8D, 9D, 10E, and 11F).

[0086] In a preferred form of the integration step, the recording portion 10 is integrated with the object to be decorated 300 on the second surface side of the recording portion 10. The integration step of this form can form the manufactured decorated article 400 into a laminated structure in which the object to be decorated 300, the receiving layer 5 having the heat transfer image 150, and the base material 1 including the urethane base material 1A are laminated in this order, and the heat transfer image 150 can be protected by the object to be decorated 300 and the urethane base material 1A.

[0087] The integration of the recording portion 10 and the object to be decorated 300 may be performed using an adhesive layer 170. In this form, the recording portion 10 and the object to be decorated 300 can be integrated simply by overlapping the recording portion 10 and the object to be decorated 300. The recording portion 10 and the object to be decorated 300 may be integrated using the object to be decorated 300 provided with an adhesive layer on the surface to be integrated with the recording portion 10 and the object to be decorated 300 subjected to an adhesion treatment on the surface to be integrated with the recording portion 10.

[0088] When the recording unit 10 includes a transfer layer that can be peeled off from the recording unit 10, the transfer layer of the recording unit 10 may be transferred and integrated with the object 300 to be decorated. An example of the transfer layer includes a urethane base material 1A.

[0089] (Adhesive layer forming step) An example of a method for manufacturing a decorative article includes an adhesive layer forming step of forming an adhesive layer 170 on the object 300 to be decorated before the integration step (see FIG. 10D). An example of a method for manufacturing a decorative article includes an adhesive layer forming step of forming an adhesive layer 170 on the surface of the recording unit 10 that contacts the object 300 to be decorated before the integration step. An example of the adhesive layer forming step is to form the adhesive layer 170 on the first surface side of the recording unit 10 when the surface on the release part 20 side of the recording unit 10 is defined as the first surface and the opposite surface is defined as the second surface. An example of the adhesive layer forming step is to form the adhesive layer 170 on the second surface side of the recording unit 10. When forming the adhesive layer 170 on the second surface side of the recording unit 170, the formation of the adhesive layer 170 may be before or after the separation step. An example of a method for manufacturing a decorative article includes an adhesive layer forming step of forming an adhesive layer 170 on the surface of the object 300 to be decorated that contacts the recording unit 10 before the integration step.

[0090] In a preferred form of the adhesive layer forming step, the adhesive layer 170 is formed on the surface of the object 300 to be decorated that contacts the recording unit 10 before the integration step. This form can integrate the recording unit 10 and the object 300 to be decorated without any variation in the followability of the recording unit 10. This form is suitable when the thickness of the adhesive layer 170 is increased or the like.

[0091] The adhesive layer 170 may be formed by applying and drying a coating liquid, or by attaching an adhesive film, an adhesive sheet, or the like. The adhesive layer 170 may also be formed by transfer.

[0092] When the recording unit 10 includes the adhesive layer 6 on the first surface side, the recording unit 10 and the object 300 to be decorated may be integrated with this adhesive layer 6 (see FIG. 13D).

[0093] (Durable layer forming step) As an example, a method for manufacturing an ornament includes a durable layer forming step of forming a durable layer 160 on the recording unit 10 before the integration step. As an example of the durable layer forming step, when the surface of the recording unit 10 on the release part 20 side is defined as the first surface and the surface on the opposite side is defined as the second surface, the durable layer 160 is formed on the first surface side of the recording unit 10. As an example of the durable layer forming step, the durable layer 160 is formed on the second surface side of the recording unit 10 (see FIG. 11D). When the durable layer 160 and the adhesive layer 170 are formed on the second surface side of the recording unit 10, it is preferable to form the durable layer 160 before forming the adhesive layer 170. As an example, a method for manufacturing an ornament includes a durable layer forming step of forming a durable layer 160 on the recording unit 10 after the integration step. As an example, a method for manufacturing an ornament includes a durable layer forming step of forming a durable layer 160 on the second surface side of the recording unit 10 after integrating the object to be decorated on the first surface side of the recording unit 10.

[0094] As the durable layer 160, the durable layer 160 described in the decorative sheet 200 of the present disclosure can be appropriately selected and used.

[0095] (Object to be decorated) There is no limitation on the shape, size, material, etc. of the object to be decorated 300. Examples of the object to be decorated 300 include plain paper, high-quality paper, tracing paper, wood, polycarbonate, acrylic resin, acrylonitrile-butadiene-styrene (ABS) resin, resin plates such as polyvinyl chloride (which may be films), metal plates such as aluminum, glass plates, and ceramic plates such as pottery. The object to be decorated 300 may be a laminate of a plurality of members. The object to be decorated 300 may have a predetermined image. The object to be decorated 300 may have curvature, uneven structure, etc. on the whole or a part thereof. As an example, the object to be decorated 300 has transparency.

[0096] After the integration process, a separation process may be performed. In this case, on the recording unit 10 side of the recording medium 100, the recording medium 100 and the object to be decorated 300 are integrated, and then the release portion 20 is separated from the recording medium 100 (not shown).

[0097] A method for manufacturing a decorative article as an example of the present disclosure is a method for manufacturing a decorative article using a decorative sheet 200, and includes a separation process and an integration process. FIG. 14 is a process diagram showing an example of the method for manufacturing a decorative article of the present disclosure. The separation process is a process of separating the release portion 20 from the decorative sheet 200 after the image forming process (see FIG. 14B). The integration process is a process of integrating the decorative portion 110 of the decorative sheet 200 and the object to be decorated 300 after the separation process (see FIG. 14C). The decorative sheet used in the method for manufacturing a decorative article of the present disclosure is the decorative sheet 200 of the present disclosure (see FIGS. 3 to 7, FIG. 14A). The decorative sheet 200 is not limited to the illustrated form, and various forms of the decorative sheet 200 of the present disclosure can be used.

[0098] The method for manufacturing a decorative article of the present disclosure using the decorative sheet 200 of the present disclosure can appropriately select and use the method described in the method for manufacturing a decorative article using the recording medium 100 of the present disclosure. In this case, the recording medium 100 may be read as the decorative sheet 200, and the recording unit 10 may be read as the decorative portion 110.

[0099] A method for manufacturing a decorative article 400 as an example of the present disclosure is such that the decorative portion 110 of the decorative sheet 200 used in the manufacturing does not have an adhesive layer, a durable layer, etc., and includes at least one of an adhesive layer forming process and a durable layer forming process.

[0100] (Adhesive layer forming process) A method for manufacturing a decorative article as an example includes an adhesive layer forming process. A method for manufacturing a decorative article as an example includes an adhesive layer forming process of forming an adhesive layer 170 on the object to be decorated 300 before the integration process. As an example, the method for manufacturing an ornament includes an adhesive layer forming step of forming an adhesive layer 170 on the surface of the ornamentation part 110 that contacts the object to be ornamented 300 before the integration step. Taking the surface of the ornamentation part 110 on the side of the release part 20 as the first surface and the opposite surface as the second surface, when integrating the ornamentation part 110 and the object to be ornamented 300 on the second surface side of the ornamentation part 110, the formation of the adhesive layer 170 on the ornamentation part 110 may be before or after the separation step. In a preferred form of the adhesive layer forming step, an adhesive layer 170 is formed on the surface of the object to be ornamented 300 on the side of the ornamentation part 110.

[0101] As an example of the method for manufacturing an ornament according to the present disclosure, the ornamentation part 110 of the ornamentation sheet 200 has an adhesive layer 170 (see FIGS. 5 and 7), and the adhesive layer 170 is used to integrate the ornamentation part 110 and the object to be ornamented 300. As an example of the method for manufacturing an ornament according to the present disclosure, the ornamentation part 110 of the ornamentation sheet 200 has an adhesive layer 6 that contacts the release part 20 (see FIG. 4), and the adhesive layer 6 is used to integrate the ornamentation part 110 and the object to be ornamented 300.

[0102] (Durable layer forming step) As an example, the method for manufacturing an ornament includes a durable layer forming step of forming a durable layer 160 on the ornamentation part 110 of the ornamentation sheet 200 before the integration step. When taking the surface of the ornamentation part 110 on the side of the release part 20 as the first surface and the opposite surface as the second surface, as an example, the durable layer forming step forms a durable layer 160 on the first surface side of the ornamentation part 110. As an example, the durable layer forming step forms a durable layer 160 on the second surface side of the ornamentation part 110. When forming the adhesive layer 170 and the durable layer 160 on the second surface side of the ornamentation part 110, it is preferable to form the durable layer 160 before forming the adhesive layer 170. An ornamentation sheet 200 having a durable layer 160 may be used (see FIGS. 6 and 7).

[0103] After the integration step, a separation step may be performed. In this case, on the side of the ornamentation part 110 of the ornamentation sheet 200, the ornamentation sheet 200 and the object to be ornamented 300 are integrated, and then the release part 20 is separated from the ornamentation sheet 200.

[0104] In the form shown in FIG. 14, when the surface of the decorative part 110 on the mold release part 20 side is defined as the first surface and the surface on the opposite side is defined as the second surface, the decorative part 110 and the object to be decorated 300 are integrated on the second surface side. The decorative part and the object to be decorated may be integrated on the first surface side.

[0105] (Cutting step) The method for manufacturing a decorative article as an example of the present disclosure includes a cutting step. The cutting step is a step of cutting the laminate of the recording part 10 (which may be the decorative part 110) and the object to be decorated 300 in the thickness direction after the integration step. By performing the cutting step after the integration step, a decorative article 400 with the end faces of the decorative sheet 200 and the object to be decorated 300 aligned can be manufactured. Before the integration step, the recording medium 100, the recording part 10, the decorative sheet 200, and the decorative part 110 may be cut.

[0106] There is no limitation on the cutting method, and examples thereof include a cutting blade, a laser cutter, etc. Other cutting methods may also be used. Cutting by a laser cutter can suppress the generation of burrs and slag when cutting the recording medium 100, the recording part 10, the decorative sheet 200, the decorative part 110, and the object to be decorated 300, and is preferable.

[0107] As an example of a decorative article 400 (FIGS. 8D, 9D, 10E, 11F, 12D, 13D, 14C) manufactured by the method for manufacturing a decorative article of the present disclosure, the thermal transfer image 150 (the thermal transfer image 150 of the image layer 105) of the receiving layer 5 can be visually recognized from either one or both of the recording part 10 side (decorative part 110 side) and the object to be decorated 300 side. As an example of the manufactured ornament 400, it has a laminated structure in which an object 300 to be decorated, a base material 1, and a receiving layer 5 (image layer 105) having a heat transfer image 150 are laminated (see FIGS. 12D, 13D, and 14C). In this form, the heat transfer image 150 (the heat transfer image 150 of the image layer 105) of the receiving layer 5 can be visually recognized from the side of the recording unit 10 (the decorating unit 110 side). The object 300 to be decorated and the base material 1 may or may not have transparency. As an example of the manufactured ornament 400, it has a laminated structure in which an object 300 to be decorated, a receiving layer 5 (image layer 105) having a heat transfer image 150, and a base material 1 are laminated (see FIGS. 8D, 9D, 10E, and 11F). In this form of the ornament 400, at least one of the object 300 to be decorated and the base material 1 has transparency.

[0108] The recording medium 100 of the present disclosure has a release portion 20 and a recording portion 10. The recording portion 10 can be separated from the release portion 20. The recording portion 10 includes a base material 1 and a receiving layer 5, and the base material 1 contains polyurethane. The recording medium 100 of the present disclosure may satisfy one or more of the following (1) to (5). When satisfying a plurality, any combination may be used. (1) The elongation rate of the recording portion 10 is 150% or more and 800% or less. (2) The elongation rate of the release portion 20 is lower than the elongation rate of the recording portion 10. (3) The thickness of the recording portion 10 is 10 μm or more and 40 μm or less. (4) The thickness of the recording medium 100 is 50 μm or more and 300 μm or less. (5) The recording portion 10 includes an adhesive layer 6 in contact with the release portion 20.

[0109] The decorative sheet 200 of the present disclosure is obtained by forming a heat transfer image on the receiving layer 5 of the recording medium 100 of the present disclosure.

[0110] The decorative sheet 200 of the present disclosure has a release portion 20 and a decorating portion 110. The decorating portion 110 can be separated from the release portion 20. The decorating portion 110 includes a base material 1 and an image layer 105 having a heat transfer image 150, and the base material 1 contains polyurethane. The decorative sheet 200 of the present disclosure may satisfy one or more of the following (6) to (13). When satisfying a plurality, any combination may be used. (6) The decorative part 110 includes an adhesive layer 170 provided on the image layer 105. (7) The decorative part 110 includes a durable layer 160 provided on the image layer 105. (8) The decorative part 110 includes a durable layer 160 provided between the image layer 105 and the adhesive layer 170. (9) The durable layer 160 contains an ultraviolet absorber. (10) When the surface on the base material side of the image layer 105 is the lower surface and the opposite surface is the upper surface, the layer in contact with the image layer 105 on the upper surface of the image layer 105 contains a resin having a glass transition temperature (Tg) of 50°C or higher. (11) The elongation rate of the decorative part 110 is 150% or more and 800% or less. (12) The thickness of the decorative part 110 is 10 μm or more and 50 μm or less. (13) The decorative part 110 includes an adhesive layer 6 in contact with the release part 20.

[0111] The method for manufacturing a decorative product of the present disclosure includes an image forming step of forming a thermal transfer image on the receiving layer 5 of the recording medium 100 of the present disclosure, a separation step of separating the recording part 10 from the release part 20 after the image forming step, and an integration step of integrating the recording part 10 and the object to be decorated 300 after the separation step. The method for manufacturing a decorative product of the present disclosure may satisfy one or more of the following (14) to (17). When satisfying a plurality, any combination may be used. (14) When the surface on the release part 20 side of the recording part 10 is the first surface and the opposite surface is the second surface, the recording part and the object to be decorated are integrated on the first surface side of the recording part 10. (15) When the surface on the release part 20 side of the recording part 10 is the first surface and the opposite surface is the second surface, the recording part and the object to be decorated are integrated on the second surface side of the recording part 10. (16) The integration step is performed using the adhesive layer 170. (17) After the image forming step, it includes a durable layer forming step of forming a durable layer 160 on the receiving layer 5.

[0112] The method for manufacturing an ornament of the present disclosure uses the decorative sheet of the present disclosure and includes a separation step of separating the decorative portion of the decorative sheet from the release portion, and an integration step of integrating the decorative portion and the object to be decorated after the separation step. The method for manufacturing an ornament of the present disclosure may satisfy the following (18) or (19). (18) When the surface on the release portion 20 side of the decorative portion 110 is defined as the first surface and the opposite surface is defined as the second surface, the decorative portion 110 and the object to be decorated 300 are integrated on the first surface side of the decorative portion 110. (19) When the surface on the release portion 20 side of the decorative portion 110 is defined as the first surface and the opposite surface is defined as the second surface, the decorative portion 110 and the object to be decorated 300 are integrated on the second surface side of the decorative portion 110.

Example

[0113] Next, examples and comparative examples will be given to explain the recording medium, decorative sheet, and method for manufacturing a decorative sheet of the present disclosure. Hereinafter, unless otherwise specified, parts or % are based on mass and are values before conversion to solid content.

[0114] (Preparation of the recording portion base material) Recording portion base material 1... A urethane film with a thickness of 30 μm (Silkron (registered trademark) ES85, Okura Industries Co., Ltd.) Recording portion base material 2... A urethane film with a thickness of 8 μm (Silkron (registered trademark) NES85, Okura Industries Co., Ltd.) Recording portion base material 3... A urethane film with a thickness of 100 μm (Silkron (registered trademark) ES85, Okura Industries Co., Ltd.) Recording portion base material 4... A polyethylene terephthalate film with a thickness of 100 μm (Lumirror, Toray Industries, Inc.)

[0115] (Example 1) On one surface of the recording portion base material 1, a coating liquid for a receiving layer having the following composition was applied and dried to form a receiving layer with a thickness of 4 μm. On the other surface of the recording portion base material 1, a coating liquid for an adhesive layer having the following composition was applied and dried to form an adhesive layer with a thickness of 8 μm, thereby obtaining a recording portion 1. The recording portion 1 has a laminated structure in which the adhesive layer, the recording portion base material 1, and the receiving layer are laminated in this order. As the release part base material 1, paper with a thickness of 80 μm (New Bright Form, Oji Paper Co., Ltd.) was used. A coating liquid for the adhesive layer with the following composition was applied to both sides of the release part base material and dried to form an adhesive layer with a thickness of 1.5 μm. A biaxially stretched polypropylene film with a thickness of 30 μm (FOS-BT, Futamura Chemical Co., Ltd.) was laminated on one side of the release part base material. A coating liquid 1 for the release layer with the following composition was applied to the other side of the release part base material and dried to form a release layer with a thickness of 1.5 μm, thereby obtaining the release part 1. The release part 1 has a laminated structure in which a biaxially stretched polypropylene film, an adhesive layer, the release part base material 1, an adhesive layer, and a release layer are laminated in this order. The recording medium of Example 1 in which the adhesive layer of the recording part 1 and the release layer of the release part 1 obtained above were laminated so as to be in contact with each other, and the recording part 1 and the release part 1 were integrated was obtained.

[0116] <Coating liquid for the receiving layer> · 12 parts of vinyl chloride-vinyl acetate copolymer (#1000A, Denka Co., Ltd.) · 0.8 part of epoxy-modified silicone (X-22-3000T, Shin-Etsu Chemical Co., Ltd.) · 0.24 part of amino-modified silicone (X-22-1660B-3, Shin-Etsu Chemical Co., Ltd.) · 30 parts of toluene · 30 parts of methyl ethyl ketone

[0117] <Coating liquid for the adhesive layer> · 15 parts of acrylic copolymer (SK Dain 1251, Soken Chemical & Engineering Co., Ltd.) · 0.33 part of curing agent (Curing agent L-45, Soken Chemical & Engineering Co., Ltd.) · 0.1 part of curing agent (E-AX, Soken Chemical & Engineering Co., Ltd.) · 16.14 parts of ethyl acetate

[0118] <Coating liquid for the adhesive layer> · 14 parts of polyurethane (Niporan (registered trademark) 5199, Nippon Polyurethane Industry Co., Ltd.) · 28 parts of titanium oxide (TCA - 888, Sakai Chemical Industry Co., Ltd.) · 13 parts of toluene · 34 parts of methyl ethyl ketone · 11 parts of isopropyl alcohol

[0119] <Release layer coating liquid 1> · 100 parts of addition - polymerized silicone (KS847H, Shin - Etsu Chemical Co., Ltd.) · 200 parts of toluene

[0120] (Example 2) As the release part base material 2, a polyethylene terephthalate film with a thickness of 100 μm (Lumirror, Toray Industries, Inc.) was used. The release layer coating liquid 1 with the above composition was applied to one surface of the release part base material 2 and dried to form a release layer with a thickness of 1.5 μm, thereby obtaining the release part 2. The release part 2 has a laminated structure of the release part base material 2 and the release layer. Except for changing the release part 1 to the release part 2, in the same manner as in Example 1, a recording medium of Example 2 in which the recording part 1 and the release part 2 are integrated was obtained. The recording part 1 is in contact with the release layer of the release part 2.

[0121] (Example 3) As the release part base material 3, a urethane film with a thickness of 100 μm (Silkron (registered trademark) ES85, Okura Industries Co., Ltd.) was used. The release layer coating liquid 1 with the above composition was applied to one surface of the release part base material 3 and dried to form a release layer with a thickness of 1.5 μm, thereby obtaining the release part 3. The release part 3 has a laminated structure of the release part base material 3 and the release layer. Except for changing the release part 1 to the release part 3, in the same manner as in Example 1, a recording medium of Example 3 in which the recording part 1 and the release part 3 are integrated was obtained. The recording part 1 is in contact with the release layer of the release part 3. (Example 4) The recording part 2 was obtained in the same manner as the recording part 1, except that the recording part base material 1 was changed to the recording part base material 2. The recording part 2 has a laminated structure in which an adhesive layer, the recording part base material 2, and a receiving layer are laminated in this order. The recording medium of Example 4 in which the recording part 2 and the release part 1 were integrated was obtained in the same manner as Example 1, except that the recording part 1 was changed to the recording part 2.

[0122] (Example 5) The recording part 3 was obtained in the same manner as the recording part 1, except that the recording part base material 1 was changed to the recording part base material 3. The recording part 3 has a laminated structure in which an adhesive layer, the recording part base material 3, and a receiving layer are laminated in this order. The recording medium of Example 5 in which the recording part 3 and the release part 1 were integrated was obtained in the same manner as Example 1, except that the recording part 1 was changed to the recording part 3.

[0123] (Example 6) A coating liquid for the receiving layer having the following composition was applied to one surface of the recording part base material 1 and dried to form a receiving layer having a thickness of 4 μm, thereby obtaining the recording part 4. The recording part 4 has a laminated structure in which the recording part base material 1 and the receiving layer are laminated in this order. The recording medium of Example 6 in which the recording part 4 and the release part 1 were integrated was obtained in the same manner as Example 1, except that the recording part 1 was changed to the recording part 4 and they were integrated on the recording part base material 1 side of the recording part 4.

[0124] (Example 7) A coating liquid 2 for the release layer having the following composition was applied to one surface of the recording part base material 1 and dried to form a release layer having a thickness of 0.2 μm. A coating liquid for the durable layer having the following composition was applied on the release layer and dried to form a durable layer having a thickness of 1.5 μm. A coating liquid for the receiving layer having the above composition was applied on the durable layer and dried to form a receiving layer having a thickness of 4 μm, thereby obtaining the recording part 5. The recording part 5 has a laminated structure in which the recording part base material 1, the release layer, the durable layer, and the receiving layer are laminated in this order. The recording medium of Example 7 in which the recording part 5 and the release part 1 were integrated was obtained in the same manner as Example 1, except that the recording part 1 was changed to the recording part 5 and they were integrated on the recording part base material 1 side of the recording part 5. In the recording medium of Example 7, the durable layer and the receiving layer constitute a transfer layer. The transfer layer can be transferred with the interface between the release layer and the durable layer as the peeling interface.

[0125] <Coating Liquid 2 for Release Layer> · 10 parts of polyvinyl alcohol (PVA-110 Kuraray Co., Ltd.) · 70 parts of water · 20 parts of isopropyl alcohol

[0126] <Coating liquid for the durable layer> · 25.5 parts of PMMA (Dianal (registered trademark) BR-83 Mitsubishi Chemical Corporation) · 4.5 parts of benzotriazole (Tinuvin (registered trademark) 928 BASF Japan Ltd.) · 56 parts of methyl ethyl ketone · 14 parts of normal propyl acetate

[0127] (Comparative Example 1) The recording section 1 was used as the recording medium of Comparative Example 1.

[0128] (Comparative Example 2) The recording section A was obtained in the same manner as the recording section 1, except that the recording section base material 1 was changed to the recording section base material 4. The recording section A has a laminated structure in which the adhesive layer, the recording section base material 4, and the receiving layer are laminated in this order. A recording medium of Comparative Example 2 in which the recording section A and the release section 1 are integrated was obtained in the same manner as in Example 1, except that the recording section 1 was changed to the recording section A.

[0129] (Measurement of elongation rate) The elongation rates of the recording section, the release section, and the entire recording medium in each example and comparative example were measured by a test method conforming to JIS-K-7127 (1999). The measurement results are shown in Table 1.

[0130] (Image formation) An ink ribbon dedicated to a sublimation thermal transfer printer (DS620 Dai Nippon Printing Co., Ltd.) was combined with the recording media of each example and comparative example, and a gray image (image gradation: (128 / 256)) was formed on the receiving layer of the recording medium using the following printer. The recording media of Examples 6 and 7 and Comparative Example 1 on which images were formed on the receiving layer were used as the decorative sheets of Examples 6 and 7 and Comparative Example 1.

[0131] (Printer) · Thermal head: F3598 (manufactured by Toshiba Hokuto Electronics Co., Ltd.) · Average resistance value of heating element: 5015 (Ω) · Printing density in main scanning direction: 300 (dpi) · Printing density in sub-scanning direction: 300 (dpi) · Applied voltage: 24.5 (V) · Line cycle: 2 (msec. / line) · Pulse Duty: 85%

[0132] (Formation of transfer sheet) A polyethylene terephthalate film with an easy-adhesion layer having a thickness of 5 μm was used as the base material. On the easy-adhesion layer side of the base material, the coating liquid 2 for the release layer having the above composition was applied and dried to form a release layer with a thickness of 0.2 μm. On a part of the release layer, the coating liquid for the durable layer having the above composition was applied and dried to form a durable layer with a thickness of 1.5 μm, and a transfer sheet in which the base material, the release layer, and the durable layer were laminated in this order was obtained. The durable layer can be peeled off at the interface with the release layer.

[0133] (Transfer of durable layer) The recording media of Examples 1 to 5 and Comparative Example 2 on which images were formed were combined with the transfer sheet formed above, and using the above printer, the durable layer of the transfer sheet was transferred to the receiving layer of the recording media. The printing voltage was set to 20 (V). Those in which the durable layer was transferred onto the receiving layers of the recording media of Examples 1 to 5 and Comparative Example 2 were used as the decorative sheets of Examples 1 to 5 and Comparative Example 2.

[0134] (Preparation of object to be decorated) A clear hard case made of polycarbonate (product number: PDA-IPH014CL) was prepared as the object to be decorated.

[0135] (Formation of decorative products of Examples 1 to 5 and Comparative Example 2) The release parts were separated from the decorative sheets of Examples 1 to 5 and Comparative Example 2. Using the adhesive layer of the decorative sheet, the decorative sheets from which the release parts were separated were integrated with the object to be decorated to obtain the decorative products of Examples 1 to 5 and Comparative Example 2.

[0136] (Formation of Decorations in Example 6 and Comparative Example 1) The release part was separated from the decorative sheets of Example 6 and Comparative Example 1. Using a transparent double-sided tape (ZB7010W-10 DIC Corporation), on the image layer side of the decorative sheet, the decorative sheet with the release part separated was integrated with the object to be decorated to obtain the decorations of Example 6 and Comparative Example 1.

[0137] (Formation of Decorations in Example 7) The release part was separated from the decorative sheet of Example 7. Using the above printer, the transfer layer of the decorative sheet after separation was transferred to the object to be decorated to obtain the decoration of Example 7. The printing voltage was 20 (V). The decoration of Example 7 has a laminated structure in which the object to be decorated, the receiving layer on which the image is formed, and the durable layer are laminated in this order.

[0138] (Formation of Decorations in Example 8) In the formation of the above image, an image was formed on the receiving layer of the recording medium of Example 1. After the image formation, the release part was separated from the recording medium of Example 1. The recording medium having an adhesive layer was integrated with the object to be decorated and the recording medium with the release part separated. After the integration, a durable layer was formed on the receiving layer on which the image was formed to obtain the decoration of Example 8. The durable layer was formed by spray-injecting a UV-curable spray coating hard coat agent (Rioduras (registered trademark) LCH8000) and then irradiating with UV. The thickness of the durable layer after UV irradiation is 5 μm.

[0139] (Stretchability (during printing)) After forming an image on the receiving layer of each example and comparative example, the formed image was visually confirmed, and the stretchability (during printing) of the recording medium was evaluated according to the following evaluation criteria. The evaluation results are shown in Table 1.

[0140] (Evaluation Criteria) A: No printing wrinkles occur in the image. B: Slight printing wrinkles occur in the image. NG: Obvious printing wrinkles occur in the image.

[0141] (Transportability (during printing)) The presence or absence of jamming was confirmed when forming an image on the receiving layer of each example and comparative example, and the transportability (during printing) was evaluated according to the following evaluation criteria. The evaluation results are shown in Table 1.

[0142] <Evaluation Criteria> A: No jamming occurs. NG: Jamming occurred.

[0143] (Stretchability (after printing)) The ornaments of each example and comparative example were visually inspected, and the stretchability (after printing) was evaluated according to the following evaluation criteria. The evaluation results are shown in Table 1.

[0144] <Evaluation Criteria> A: No floating or wrinkles occur in the recording part of the decorative sheet integrated with the object to be decorated. NG: Floating or wrinkles occur in the recording part of the decorative sheet integrated with the object to be decorated.

[0145] (Workability) The workability of the decorative sheet with the release part separated when integrating the object to be decorated with the decorative sheets of each example and comparative example (excluding Comparative Example 1) with the release part separated was evaluated according to the following evaluation criteria. The evaluation results are shown in Table 1.

[0146] <Evaluation Criteria> A: Easy to work. B: Difficult to work.

[0147] (Adhesion) Using the ornaments of each example and comparative example, a cross-cut test was conducted in accordance with JIS-K5600-5-6, and the adhesion was evaluated based on the following evaluation criteria. The evaluation results are shown in Table 1.

[0148] <Evaluation Criteria> A: The recording part of the decorative sheet can be integrated along the object to be decorated, and after 24 hours, no peeling of the recording part occurs. B: The recording part of the decorative sheet can be integrated along the object to be decorated, and (after 24 hours, slight floating occurs in the recording part. NG: Along the object to be decorated, the recording part of the decorative sheet could not be integrated, and floating occurred in the recording part.

[0149] (Bleeding evaluation) The decorative products of each example and comparative example were visually inspected, and Table 1 shows the evaluation results of evaluating the bleeding of the images formed on the receiving layer according to the following evaluation criteria.

[0150] <Evaluation criteria> A: No bleeding occurred in the image. B: Bleeding occurred in the image.

[0151]

Table 1

Explanation of symbols

[0152] 1···Substrate 1A···Urethane substrate 5···Receiving layer 6···Adhesive layer 10···Recording part 20···Release part 100···Recording medium 105···Image layer 110···Decorative part 150···Thermal transfer image 160···Durable layer 170···Adhesive layer 200···Decorative sheet 300···Object to be decorated 400···Decorative product

Claims

1. A decorative sheet having a release portion and a decorative portion, wherein the decorative portion is separable from the release portion, the decorative portion includes a base material and an image layer having a heat transfer image, the base material contains polyurethane, the decorative portion includes an adhesive layer provided on the image layer, the decorative sheet, wherein the decorative portion includes a durable layer provided between the image layer and the adhesive layer.

2. The decorative sheet according to claim 1, wherein the durable layer contains an ultraviolet absorber.

3. The decorative sheet according to claim 1 or 2, wherein the decorative portion includes an adhesive layer in contact with the release portion.

4. A method for manufacturing a decorative article, including an image forming step of forming a heat transfer image on a receiving layer of a recording medium having a release portion and a recording portion, the recording portion being separable from the release portion, the recording portion including a base material and a receiving layer, the base material containing polyurethane, and the elongation rate of the recording portion being 150% or more and 800% or less; a separation step of separating the recording portion from the release portion after the image forming step; an integration step of integrating the recording portion and a decoration target after the separation step, wherein when the surface of the recording portion on the release portion side is defined as the first surface and the opposite surface is defined as the second surface, the recording portion and the decoration target are integrated on the second surface side of the recording portion.

5. A method for manufacturing a decorative article, including an image forming step of forming a heat transfer image on a receiving layer of a recording medium having a release portion and a recording portion, the recording portion being separable from the release portion, the recording portion including a base material and a receiving layer, the base material containing polyurethane, and the elongation rate of the release portion being lower than the elongation rate of the recording portion; a separation step of separating the recording portion from the release portion after the image forming step; an integration step of integrating the recording portion and a decoration target after the separation step, wherein when the surface of the recording portion on the release portion side is defined as the first surface and the opposite surface is defined as the second surface, the recording portion and the decoration target are integrated on the second surface side of the recording portion.

6. The method for manufacturing a decorative article according to claim 4 or 5, wherein the integration step is performed using an adhesive layer.

7. The method for manufacturing a decorative article according to any one of claims 4 to 6, including a durable layer forming step of forming a durable layer on the receiving layer after the image forming step.

8. A method for manufacturing a decorative article, Using the decorative sheet according to any one of claims 1 to 3, a separating step of separating the decorative portion of the decorative sheet from the release portion; A method for manufacturing a decorative article, comprising an integrating step of integrating the decorative portion and the object to be decorated after the separating step.

9. When the surface of the decorative portion on the release portion side is defined as the first surface and the surface on the opposite side is defined as the second surface, The method for manufacturing a decorative article according to claim 8, wherein the decorative portion and the object to be decorated are integrated on the first surface side of the decorative portion.

10. When the surface of the decorative portion on the release portion side is defined as the first surface and the surface on the opposite side is defined as the second surface, The method for manufacturing a decorative article according to claim 8, wherein the decorative portion and the object to be decorated are integrated on the second surface side of the decorative portion.

Images