Laminated sheets and textured sheets

Abstract

This invention provides a laminated sheet that can be manufactured using a printer, which has a natural appearance when applied to the skin and offers excellent expression of patterns. [Solution] A laminated sheet comprising at least a base layer, an adhesive layer, and a release sheet, wherein the adhesive layer and the base layer are laminated in this order in the thickness direction on the release sheet, wherein the opacity (YB / YW) obtained by a test method compliant with JIS K5600-4-1, measured from the base layer side of the laminated sheet excluding the release sheet, is 5% or more and 40% or less, and the opacity obtained by a test method compliant with JIS K5600-4-1, including the release sheet, is 30% or more and 99% or less.

Description

Technical Field

[0001] The present invention relates to a laminated sheet and a skin design sheet.

Background Art

[0002] A skin design sheet used by attaching it to the skin is known. The skin design sheet includes, for example, a release sheet, an adhesive layer, a base material layer, and a protective sheet in this order in the thickness direction. The skin design sheet is attached to the user's skin by a procedure of peeling the release sheet from the adhesive layer and attaching the adhesive layer to the skin, and then peeling the protective sheet from the base material layer.

[0003] For the skin design sheet, a natural appearance with suppressed gloss is required so that the attachment part is not conspicuous when attached to the skin (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Examples of the skin design sheet include a body paint seal. The body paint seal is a sheet in which various patterns are printed on a base material. The body paint seal is sold, for example, at variety stores, sports and music event venues, amusement parks, etc., and is used to enhance the atmosphere.

[0006] For the skin design sheet used for such a body paint seal, in order for the appearance when attached to the skin to look natural, it is required to be in close contact with the bare skin while allowing the color of the bare skin to be seen, and also to appropriately express the pattern.

[0007] Furthermore, while the skin-patterned sheets used for body paint stickers are printed onto a base material using printers such as thermal transfer printers and inkjet printers, if the transparency of the skin-patterned sheet is too high, the printer may not detect the sheet, potentially leading to problems such as being unable to print.

[0008] The objective of this disclosure is to provide a laminated sheet that can be manufactured using a printer, which has a natural appearance when applied to the skin and excellent ability to express patterns. Furthermore, the objective of this disclosure is to provide a skin-like design sheet that looks natural when applied to the skin and offers excellent representation of patterns. [Means for solving the problem]

[0009] The laminated sheet of this disclosure comprises at least a substrate layer, an adhesive layer, and a release sheet. The adhesive layer and the base material layer are laminated on the release sheet in this order in the thickness direction. The opacity (YB / YW) obtained by a test method compliant with JIS K5600-4-1, measured from the substrate layer side of the laminated sheet excluding the release sheet, is 5% or more and 40% or less. The opacity of the laminated sheet including the release sheet, as determined by a test method in accordance with JIS K5600-4-1, is 30% or more and 99% or less. [Effects of the Invention]

[0010] According to this disclosure, it is possible to provide a laminated sheet that can be manufactured using a printer, which has a natural appearance when applied to the skin and excellent expression of patterns. Furthermore, according to this disclosure, it is possible to provide a skin-like design sheet that looks natural when applied to the skin and has excellent image rendering capabilities. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is a cross-sectional view of a laminated sheet, which is one embodiment to which the present invention is applied. [Modes for carrying out the invention]

[0012] The embodiments of this disclosure will be described in detail below. This disclosure can be implemented in many different forms and is not construed as being limited to the embodiments described below. The drawings may schematically represent the width, thickness, and shape of each layer, etc., compared to the embodiments, in order to clarify the explanation, but these are merely examples and do not limit the interpretation of this disclosure. In this specification and in each figure, elements similar to those already described in the previously shown figures are denoted by the same reference numerals, and detailed explanations may be omitted as appropriate.

[0013] In this disclosure, if there are multiple candidate upper limits and multiple candidate lower limits for a certain parameter, the numerical range of that parameter may be constructed by combining any one candidate upper limit and any one candidate lower limit. Examples of such parameters include physical properties, component content, and layer thickness. As an example, let's consider the statement, "Parameter B is preferably A1 or higher, more preferably A2 or higher, and even more preferably A3 or higher. Parameter B is preferably A4 or lower, more preferably A5 or lower, and even more preferably A6 or lower." In this example, the numerical range of parameter B may be A1 or higher and A4 or lower, A1 or higher and A5 or lower, A1 or higher and A6 or lower, A2 or higher and A4 or lower, A2 or higher and A5 or lower, A2 or higher and A6 or lower, A3 or higher and A4 or lower, A3 or higher and A5 or lower, and A3 or higher and A6 or lower.

[0014] In this specification, each component (for example, resin material and additives such as colorants) mentioned in the following description may be used individually or in combination of two or more.

[0015] [Laminated Sheet] The laminated sheet of this disclosure comprises at least a substrate layer, an adhesive layer, and a release sheet. The laminated sheet has an adhesive layer and a base material layer laminated in this order in the thickness direction on a release sheet.

[0016] Hereinafter, specific examples of the laminated sheet of the present disclosure will be described with reference to the drawings. The laminated sheet 1 shown in FIG. 1 includes a release sheet 10, an adhesive layer 20, and a base material layer 30 in this order in the thickness direction. In this example, one or both surfaces of the base material layer 30 may be colored with a desired color such as a skin color by a colorant. A printing layer (not shown) may be provided on either one or both surfaces of the base material layer 30.

[0017] The laminated sheet may further include a white printing layer on the side opposite to the adhesive layer of the release sheet. The laminated sheet may include a white printing layer, a release sheet, an adhesive layer, and a base material layer in this order in the thickness direction.

[0018] The laminated sheet may further include a receiving layer (not shown) on the base material layer. The laminated sheet may include a release sheet, an adhesive layer, a base material layer, and a receiving layer in this order in the thickness direction.

[0019] The laminated sheet may further include a concealing layer (not shown) between the base material layer and the receiving layer. The laminated sheet may include a release sheet, an adhesive layer, a base material layer, a concealing layer, and a receiving layer in this order in the thickness direction.

[0020] The laminated sheet may further include an adhesive layer (not shown) between the base material layer and the concealing layer. The laminated sheet may include a release sheet, an adhesive layer, a base material layer, an adhesive layer, a concealing layer, and a receiving layer in this order in the thickness direction.

[0021] The laminated sheet may further include a protective layer (not shown) on the base material layer. The laminated sheet may include a release sheet, an adhesive layer, a base material layer, an adhesive layer, a concealing layer, a receiving layer, and a protective layer in this order in the thickness direction. In these examples, an image of a desired color such as a skin color may be formed on the receiving layer by a colorant such as a dye.

[0022] The laminated sheet may optionally further include a protective sheet (not shown) on the surface of the substrate layer opposite to the surface facing the adhesive layer. The laminated sheet may optionally comprise a release sheet, an adhesive layer, a substrate layer, an adhesive layer, a concealing layer, a receiving layer on which the image is formed, a protective layer, and optionally a protective sheet in this order.

[0023] In one embodiment, the laminated sheet of this disclosure is in the shape of a long strip, and Figure 1 is, for example, a cross-sectional view perpendicular to the longitudinal direction of the laminated sheet 1.

[0024] <Base material layer> The laminated sheet of this disclosure comprises a substrate layer. Examples of the base layer include resin films formed from resin materials. Examples of resin materials include polyurethane, polyester, polyamide, polyimide, polyolefin, vinyl resin, styrene resin, acrylic resin, and cellulose resin. Furthermore, the base layer may contain biodegradable plastic as a resin material, or it may contain polylactic acid resin.

[0025] The resin material content in the base layer is preferably 60% by mass or more and 100% by mass or less, more preferably 70% by mass or more and 100% by mass or less. Increasing the resin material content in the base layer can increase the opacity of the laminated sheet and the tensile stress at 50% strain in the stress-strain curve obtained by tensile testing of the laminated sheet, as will be described later. On the other hand, decreasing the resin material content in the base layer can decrease the opacity of the laminated sheet and the tensile stress at 50% strain in the stress-strain curve obtained by tensile testing of the laminated sheet, as will be described later.

[0026] As the base layer, for example, an expandable base material is preferably used. Examples of expandable base materials include the resin films mentioned above, and among the resin films, polyvinyl chloride (PVC) film, urethane film, olefin film, and polyethylene film are preferred, and a resin film containing polyvinyl chloride (PVC) or polyurethane as the resin material is more preferred.

[0027] The stretchable substrate preferably has an elongation rate of 30% or more in order to follow the expansion and contraction of the substrate when the laminated sheet is attached to the substrate. The elongation rate of the stretchable substrate is the elongation rate obtained by the test method in accordance with JIS K 7127:1999. The elongation rate is expressed by the following formula (1). Growth rate (%) = 100 × (L - L0) / L0 ... (1)

[0028] In equation (1), L is the length at which the stretchable material breaks when pulled at a speed of 100 mm / min using a tensile testing machine. In equation (1), L0 is the length of the stretchable material before being pulled by the tensile testing machine. A Tensilon universal material tester can be used as the tensile testing machine.

[0029] The base layer may contain additives. Examples of additives include UV absorbers, light stabilizers, antioxidants, colorants, fillers, and release agents. The base layer may also contain colorants as needed. The base layer may contain colorants to match the color tone of the laminated sheet to a desired color, such as skin tone. Examples of colorants include pigments and dyes.

[0030] The substrate layer may contain a white pigment. Examples of white pigments include silica, titanium dioxide, titanium oxide, zinc oxide, cerium oxide, titanium mica, muscovite, white carbon, calcium carbonate, barium sulfate, alumina white, and talc. Among these, titanium dioxide is preferred from the viewpoint of whiteness. The base layer may contain one or more types of white pigments.

[0031] The base layer may further contain pearl pigment. Examples of pearl pigments include oxide-coated micas such as iron oxide-coated mica, iron oxide-coated titanium mica, chromium oxide-coated titanium mica, carmine-coated titanium mica, organic pigment-coated titanium mica, titanium oxide-coated mica, and titanium oxide-coated synthetic mica, as well as fish scales, shell fragments, and pearl fragments. The pearl pigment is not particularly limited, and other pearl pigments may be used. Furthermore, as pearl pigments, those obtained by coating the surface of the various pearl pigments mentioned above with a colored pigment can also be used. The shape of the pearl pigment is not particularly limited, but flat or flaky shapes are preferred. With pearl pigments of this shape, the pearl pigments can be arranged substantially parallel to the surface of the component containing the pearl pigment, and a high pearlescent effect can be imparted through the action of multiple light reflections.

[0032] The content of the white pigment in the base layer is preferably 0.05% by mass or more and 10% by mass or less, more preferably 0.1% by mass or more and 5.0% by mass or less. Increasing the content of the white pigment in the base layer can increase the opacity of the laminated sheet and the tensile stress at 50% strain in the stress-strain curve obtained by tensile testing of the laminated sheet, as will be described later. On the other hand, decreasing the content of the white pigment in the opacity layer can decrease the opacity of the laminated sheet and the tensile stress at 50% strain in the stress-strain curve obtained by tensile testing of the laminated sheet, as will be described later.

[0033] The thickness of the base layer is preferably 20 μm or more, more preferably 30 μm or more. A laminated sheet having a base layer with a thickness of 20 μm or more can suppress the occurrence of wrinkles when the sheet is applied, for example. Furthermore, a laminated sheet having a base layer with a thickness of 30 μm or more allows the release sheet to be easily peeled off and applied without the base layer (seal paper) becoming distorted when peeling it from the laminated sheet, thereby improving workability. Furthermore, the thickness of the base layer is preferably 150 μm or less, more preferably 100 μm or less. In a laminated sheet having such a base layer, as will be described later, the opacity of the laminated sheet and the tensile stress at 50% strain in the stress-strain curve obtained by a tensile test of the laminated sheet can be easily adjusted.

[0034] A printing layer may be provided on the substrate layer. The printing layer may be a layer for matching the color tone of the laminated sheet to a desired color, such as skin tone. The printing layer contains a coloring agent. Examples of coloring agents include pigments and dyes.

[0035] <Adhesive layer> The laminated sheet of this disclosure comprises an adhesive layer. The adhesive layer is formed, for example, using an adhesive. An adhesive, also known as a pressure-sensitive adhesive, is a material that exhibits adhesive properties at room temperature and can adhere to a substrate when pressure is applied. For example, even when a substrate attached to the adhesive layer is peeled off, the adhesive layer retains practical adhesive strength.

[0036] Examples of adhesives include acrylic adhesives, urethane adhesives, silicone adhesives, rubber adhesives, vinyl alkyl ether adhesives, polyester adhesives, polyamide adhesives, and fluorine-based adhesives. The adhesive may contain a solvent. As a solvent, for example, either water-based or solvent-based solvents can be used. For medical use, it is preferable to select an adhesive that causes less skin irritation and skin rash, for example, acrylic adhesives and urethane adhesives are preferred.

[0037] The adhesive layer may contain additives. Examples of additives include UV absorbers, light stabilizers, antioxidants, colorants, fillers, and release agents. The adhesive layer may also contain colorants as needed. The adhesive layer may contain colorants to match the color tone of the laminated sheet to a desired color, such as skin tone. Examples of colorants include pigments and dyes.

[0038] The adhesive strength of the adhesive layer is preferably 5000 gf / 50 mm or less, more preferably 100 gf / 50 mm or more and 5000 gf / 50 mm or less. If the adhesive strength is 5000 gf / 50 mm or less, for example, there is little risk of damaging the adherend (especially human or animal skin) when the sheet is misapplied or when it is peeled off during replacement. If the adhesive strength is 100 gf / 50 mm or more, for example, adhesive strength to the adherend (especially human or animal skin) can be ensured, and peeling of the sheet due to skin perspiration or movement can be suppressed.

[0039] The thickness of the adhesive layer is preferably 3 μm or more, more preferably 5 μm or more, preferably 40 μm or less, and more preferably 30 μm or less. For example, the thickness of the adhesive layer is 3 μm or more and 40 μm or less.

[0040] <Release sheet> The laminated sheet of this disclosure comprises a release sheet. Examples of release sheets include release paper with at least one side of the paper substrate treated for release, and resin films with at least one side of the resin film treated for release. Examples of release treatments include release treatments using release agents such as silicone resin-based release agents, alkyd resin-based release agents, long-chain alkyl compound-based release agents, and fluororesin-based release agents. Examples of resin films include resin films formed from resin materials such as polyolefins, vinyl resins, styrene resins, acrylic resins, fluororesins, polyesters, and polyamides.

[0041] The thickness of the release sheet is preferably 50 μm or more, more preferably 100 μm or more, preferably 300 μm or less, and more preferably 200 μm or less. For example, the thickness of the release sheet is 50 μm or more and 300 μm or less.

[0042] The release sheet is preferably one in which the arithmetic mean height Sa of the surface of the release sheet on the sealing side, measured in accordance with ISO 25178, is 0.01 or more and 0.30 or less. When printing on the laminated sheet using a printer, a release sheet with a surface roughness within the above range allows for high-definition printing using multiple colors, resulting in a more natural appearance and superior representation of the design. Such a release sheet is preferably a resin film, and more preferably a PET film with a thickness of 50 μm or more and 250 μm or less. With a PET film of the above thickness, it is easy to adjust the surface roughness of the surface on the substrate layer side to the preferred range.

[0043] (white printing layer) The laminated sheet of this disclosure may have a white printed layer on the side opposite to the adhesive layer of the release sheet. In one embodiment, the laminated sheet may comprise a white printing layer, a release sheet, an adhesive layer, and a substrate layer in this order in the thickness direction.

[0044] Examples of white printing layers include a white primer layer containing a white pigment and a resin material. Examples of white pigments include silica, titanium dioxide, titanium oxide, zinc oxide, cerium oxide, titanium mica, muscovite, white carbon, calcium carbonate, barium sulfate, alumina white, and talc. Among these, titanium dioxide is preferred from the viewpoint of whiteness. The white printing layer may contain one or more white pigments.

[0045] The content of white pigment in the white printing layer is preferably 40% by mass or more and 85% by mass or less, more preferably 50% by mass or more and 80% by mass or less. Increasing the content of white pigment in the white printing layer can increase the opacity of the laminated sheet described later. On the other hand, decreasing the content of white pigment in the white printing layer can decrease the opacity of the laminated sheet described later.

[0046] The white printing layer may further contain pearl pigment. As for the pearl pigment, the same type as those mentioned above for the substrate layer can be used.

[0047] Examples of resin materials include (meth)acrylic resins, polyolefins, styrene resins, vinyl resins such as ethylene-vinyl acetate copolymers and vinyl chloride-vinyl acetate copolymers, polyesters, polyamides, imide resins, cellulose resins, polyol resins, polycarbonates, and ionomer resins. The white printing layer may contain one or more types of resin materials.

[0048] The white printing layer preferably contains either (meth)acrylic resin or polyol resin, or both, as the main resin material. This improves the dispersion stability of the white pigment in the coating liquid for forming the white printing layer and suppresses the occurrence of coating defects. The main resin material refers to the resin material that accounts for 70 parts by mass or more of the total amount of resin material contained in the white printing layer, per 100 parts by mass.

[0049] From the viewpoint of improving adhesion to the release sheet, the white printing layer preferably contains vinyl resin, and more preferably contains a vinyl chloride-vinyl acetate copolymer. The vinyl resin content in the white printing layer is preferably 0.3% by mass or more and 10% by mass or less, and more preferably 0.5% by mass or more and 5% by mass or less. This further improves the adhesion of the white printing layer to the release sheet.

[0050] The white printing layer preferably contains polyester from the viewpoint of improving adhesion to the release sheet. The polyester content in the white printing layer is preferably 0.03% by mass or more and 1% by mass or less, more preferably 0.1% by mass or more and 1% by mass or less. This further improves adhesion to the release sheet.

[0051] The resin material content in the white printing layer is preferably 10% to 70% by mass, more preferably 10% to 50% by mass. This prevents the re-aggregation of the white pigment and provides high opacity.

[0052] The white printing layer may contain additives. Examples of additives include fillers, plasticizers, antistatic agents, UV absorbers, mold release agents, and dispersants. The white printing layer may contain one or more additives.

[0053] The thickness of the white printed layer is preferably 0.6 μm or more, more preferably 0.8 μm or more, and even more preferably 1.0 μm or more. The thickness of the white printed layer is preferably 6 μm or less, more preferably 5 μm or less, and even more preferably 4 μm or less. Increasing the thickness of the white printed layer can increase the opacity of the laminated sheet described later. On the other hand, decreasing the thickness of the white printed layer can decrease the opacity of the laminated sheet described later.

[0054] The white printed layer can be formed, for example, by applying a coating solution obtained by dispersing or dissolving the components described above in a suitable solvent onto the surface of the release sheet using the known coating method described above, and then drying it.

[0055] (receptor layer) The laminated sheet of this disclosure may have a receiving layer on the side of the substrate layer opposite to the adhesive layer. In one embodiment, the laminated sheet may comprise a release sheet, an adhesive layer, a base layer, and a receiving layer in this order in the thickness direction.

[0056] The receiving layer is a layer for receiving dyes and other substances that transfer from the heat transfer sheet. For example, when forming an image using a printer, the image may be formed on a receiving layer that has been prepared in advance on the substrate layer, or the image may be formed on a receiving layer that has been prepared on the transfer sheet, and then the substrate layer may be transferred via the opacity layer described later. The image may be, for example, an image used to match the color tone of the laminated sheet to a desired color, such as skin tone.

[0057] For example, a resin material can be used as the material constituting the receiving layer. Examples of resin materials include polyolefins, vinyl resins, styrene resins, acrylic resins, polyesters, polyamides, polyimides, polyurethanes, polycarbonates, cellulose resins, and ionomer resins. Examples of polyolefins include polyethylene and polypropylene. Examples of vinyl resins include polyvinyl chloride, polyvinyl acetate, and vinyl chloride-vinyl acetate copolymers. Examples of polyesters include polyethylene terephthalate and polyethylene naphthalate. Vinyl resins are preferred as the resin material constituting the receiving layer, and vinyl chloride-vinyl acetate copolymers are more preferred.

[0058] The resin material content in the receiving layer is preferably 70% by mass or more, more preferably 80% by mass or more, relative to the total mass of the receiving layer. This allows for sufficient durability of the receiving layer, for example.

[0059] The receiving layer may contain additives. Examples of additives include UV absorbers, light stabilizers, antioxidants, colorants, fillers, and release agents.

[0060] The additive content in the receiving layer is preferably 1% by mass or more, more preferably 2% by mass or more, preferably 30% by mass or less, and more preferably 20% by mass or less, relative to the total mass of the receiving layer. For example, the additive content in the receiving layer is 1% by mass or more and 30% by mass or less.

[0061] The thickness of the receptive layer is preferably 0.3 μm or more, more preferably 0.5 μm or more, and even more preferably 0.8 μm or more. The thickness of the receptive layer is preferably 10.0 μm or less, more preferably 5.0 μm or less, and even more preferably 2.0 μm or less. If the thickness of the receptive layer is above the lower limit, sufficient print density cannot be obtained. On the other hand, if the thickness of the receptive layer is below the upper limit, the conformability when applied to the skin is insufficient, and a sense of unity with the skin cannot be obtained.

[0062] When a receiving layer is provided on the substrate layer in advance, the substrate layer may melt, be damaged, altered, or deformed by the solvent contained in the coating liquid during the process of applying and drying the coating liquid for the receiving layer on the substrate layer. In this case, it is preferable to transfer the receiving layer onto the substrate layer by thermal transfer. The receiving layer may be provided on the substrate layer in advance, or it may be provided on the substrate layer by thermal transfer during image formation.

[0063] (Concealing layer) The laminated sheet of this disclosure may further include an opacity layer (not shown) between the substrate layer and the receiving layer. In one embodiment, the laminated sheet may comprise a release sheet, an adhesive layer, a base layer, an opacity layer, and a receiving layer in this order in the thickness direction.

[0064] An example of an opacity layer is a white primer layer containing a white pigment and a resin material. Examples of white pigments include silica, titanium dioxide, titanium oxide, zinc oxide, cerium oxide, titanium mica, muscovite, white carbon, calcium carbonate, barium sulfate, alumina white, and talc. Among these, titanium dioxide is preferred from the viewpoint of whiteness. The opacity layer may contain one or more white pigments.

[0065] The content of the white pigment in the opacity layer is preferably 40% by mass or more and 85% by mass or less, more preferably 50% by mass or more and 80% by mass or less. Increasing the content of the white pigment in the opacity layer can increase the opacity of the laminated sheet described later. On the other hand, decreasing the content of the white pigment in the opacity layer can decrease the opacity of the laminated sheet described later.

[0066] The opacity layer may further contain pearl pigment. As for the pearl pigment, the same type as those mentioned above for the substrate layer can be used.

[0067] Examples of resin materials include (meth)acrylic resins, polyolefins, styrene resins, vinyl resins such as ethylene-vinyl acetate copolymers and vinyl chloride-vinyl acetate copolymers, polyesters, polyamides, imide resins, cellulose resins, polyol resins, polycarbonates, and ionomer resins. The concealing layer may contain one or more types of resin materials.

[0068] The opacity layer preferably contains either (meth)acrylic resin or polyol resin, or both, as the main resin material. This improves the dispersion stability of the white pigment in the coating liquid for forming the opacity layer and suppresses the occurrence of coating defects. The main resin material refers to a resin material that accounts for 70 parts by mass or more of the total amount of resin material contained in the opacity layer, based on 100 parts by mass of the resin material.

[0069] From the viewpoint of improving adhesion to the substrate layer when transferring and forming it, the opacity layer preferably contains vinyl resin, and more preferably contains a vinyl chloride-vinyl acetate copolymer. The content of vinyl resin in the opacity layer is preferably 0.3% by mass or more and 10% by mass or less, more preferably 0.5% by mass or more and 5% by mass or less. This makes it possible to further improve the adhesion of the opacity layer to the substrate layer while maintaining the thermal transferability of the opacity layer.

[0070] The concealing layer preferably contains polyester from the viewpoint of improving adhesion to the substrate layer. The polyester content in the concealing layer is preferably 0.03% by mass or more and 1% by mass or less, more preferably 0.1% by mass or more and 1% by mass or less. This allows for improved adhesion to the substrate layer while maintaining the thermal transfer properties of the concealing layer.

[0071] The resin material content in the opacity layer is preferably 10% to 70% by mass, more preferably 10% to 50% by mass. This prevents the re-aggregation of the white pigment and provides high opacity.

[0072] The concealing layer may contain additives. Examples of additives include fillers, plasticizers, antistatic agents, UV absorbers, mold release agents, and dispersants. The concealing layer may contain one or more additives.

[0073] The thickness of the opacity layer is preferably 0.6 μm or more, more preferably 0.8 μm or more, and even more preferably 1.0 μm or more. The thickness of the opacity layer is preferably 6 μm or less, more preferably 5 μm or less, and even more preferably 4 μm or less. Increasing the thickness of the opacity layer can conceal the color of the substrate. On the other hand, decreasing the thickness of the opacity layer can reduce the opacity rate of the laminated sheet described later.

[0074] The opacity layer can be formed, for example, by dispersing or dissolving the components described above in a suitable solvent to obtain a coating solution, which is then applied and dried onto any layer provided on the substrate of the substrate layer or transfer sheet using the known coating method described above.

[0075] (adhesive layer) The laminated sheet of this disclosure may include an adhesive layer. In one embodiment, the laminated sheet may have an adhesive layer between the base layer and the opacity layer. In this case, the adhesion between the base layer and the opacity layer can be improved when the opacity layer provided on the transfer sheet is transferred to the base layer.

[0076] The adhesive layer preferably contains a resin material. Examples of resin materials include (meth)acrylic resin, vinyl resin, polyolefin, polyester, polyurethane, epoxy resin, urea resin, melamine resin, and phenolic resin. The adhesive layer may contain one or more resin materials.

[0077] The resin material content in the adhesive layer is preferably 70% by mass or more and 100% by mass or less, more preferably 80% by mass or more and 100% by mass or less.

[0078] The adhesive layer may be a layer of resin material cured with a curing agent. Examples of curing agents include isocyanate compounds, aliphatic amines, cyclic aliphatic amines, aromatic amines, and acid anhydrides.

[0079] The thickness of the adhesive layer is preferably 0.1 μm or more, more preferably 0.5 μm or more, preferably 10 μm or less, and more preferably 2 μm or less. For example, the thickness of the adhesive layer is 0.1 μm or more and 10 μm or less.

[0080] The adhesive layer can be formed, for example, by applying and drying a coating solution obtained by dispersing or dissolving the components described above in a suitable solvent onto the opacity layer using the known coating method described above.

[0081] (protective layer) The laminated sheet of this disclosure may include a protective layer. In one embodiment, the laminated sheet may comprise a release sheet, an adhesive layer, a base layer, an opacity layer, a receiving layer, and a protective layer in this order, or it may comprise a base layer, an opacity layer, a receiving layer on which an image is formed, and a protective layer in this order.

[0082] For example, resin materials can be used as the material constituting the protective layer. Examples of resin materials include polyester, polyamide, polyurethane, polycarbonate, vinyl resin, styrene resin, acrylic resin, acrylic polyol resin, cellulose resin, phenoxy resin, epoxy resin, silicone-modified resins of these resins, ultraviolet-absorbing resins, and ionizing radiation-curing resins.

[0083] Examples of polyesters include polyethylene terephthalate and polyethylene naphthalate. Examples of vinyl resins include vinyl chloride-vinyl acetate copolymer, polyvinyl chloride, polyvinyl acetate, polyvinyl alcohol, polyvinyl butyral, polyvinyl acetal, and polyvinylpyrrolidone. Examples of cellulose resins include ethylcellulose, hydroxyethylcellulose, ethylhydroxycellulose, methylcellulose, and cellulose acetate.

[0084] Examples of ionizing radiation-curable resins include resins obtained by crosslinking and curing radical polymers or radical polymerizable oligomers by irradiation with ionizing radiation. Specifically, these include resins obtained by adding a photopolymerization initiator as needed to a radical polymer or radical polymerizable oligomer and polymerizing and crosslinking it by electron beam or ultraviolet irradiation.

[0085] The resin material content in the protective layer is preferably 80% by mass or more, more preferably 85% by mass or more, relative to the total mass of the protective layer. This allows for sufficient durability of the protective layer, for example.

[0086] The protective layer may contain additives. Examples of additives include UV absorbers, light stabilizers, antioxidants, colorants, fillers, and release agents. The protective layer may also contain colorants as needed. The protective layer may contain colorants to match the color tone of the laminated sheet to a desired color, such as skin tone. Examples of colorants include pigments and dyes.

[0087] The additive content in the protective layer is preferably 1% by mass or more, more preferably 2% by mass or more, preferably 20% by mass or less, and more preferably 15% by mass or less, relative to the total mass of the protective layer. For example, the additive content in the protective layer is 1% by mass or more and 20% by mass or less.

[0088] The thickness of the protective layer is preferably 0.1 μm or more, more preferably 0.5 μm or more, even more preferably 1 μm or more, preferably 20 μm or less, more preferably 10 μm or less, and even more preferably 5 μm or less. Such a protective layer can, for example, provide sufficient protective function to the laminated sheet. The thickness of the protective layer is, for example, 0.1 μm or more and 20 μm or less.

[0089] The protective layer can be formed, for example, by applying a coating liquid containing the above-mentioned material to a receiving layer or the like using known means such as roll coating, reverse roll coating, gravure coating, reverse gravure coating, bar coating, and rod coating, and then drying it.

[0090] The protective layer can be formed, for example, by preparing a thermal transfer sheet equipped with a protective layer, placing the thermal transfer sheet on a substrate film or the like corresponding to the substrate layer, and transferring the protective layer onto the receiving layer or the receiving layer on which the image is formed by a thermal transfer process.

[0091] (Protective sheet) The laminated sheet of this disclosure may include a protective sheet that is peelably provided on the substrate layer. Examples of protective sheets include low-density polyethylene (LDPE) sheets, polypropylene (PP) sheets, glycol-modified polyethylene terephthalate (PET-G), cast polypropylene, polyvinyl chloride (PVC), and thermoplastic polyurethane (TPU). The protective sheet is provided with, for example, a weak adhesive layer. Acrylic-based weak adhesives and urethane-based weak adhesives can be used to form the weak adhesive layer. The thickness of the protective sheet is, for example, between 10 μm and 200 μm.

[0092] <Laminated sheet> The laminated sheet of this disclosure, excluding the release sheet (i.e., a laminated sheet having an adhesive layer and a base layer as essential components, and an adhesive layer, an opacity layer, an image-formed receiving layer, and a protective layer as optional components), has an opacity ratio (YB / YW) measured from the surface side of the base layer, obtained by a test method compliant with JIS K5600-4-1, preferably between 5% and 40%, and more preferably between 10% and 35%. If the opacity ratio of the laminated sheet excluding the release sheet is 5% or more, the design can be appropriately displayed when applied to the skin, for example, as a body paint sticker. Furthermore, if the opacity ratio of the laminated sheet excluding the release sheet is 40% or less, the laminated sheet is moderately transparent, allowing the skin color to show through, resulting in a more natural appearance when applied to the skin, for example, as a body paint sticker.

[0093] The opacity of the laminated sheet excluding the release liner is measured by directly attaching the adhesive layer of the laminated sheet (excluding the release liner) to opacity test paper, in accordance with the test method compliant with Method B of JIS K5600-4-1.

[0094] Furthermore, it is preferable that the laminated sheet of this disclosure, including the release sheet (i.e., a laminated sheet having a release sheet, adhesive layer, and substrate layer as essential components, and an optional white printing layer, adhesive layer, opacity layer, image-receiving layer, and protective layer), has an opacity rate of 30% to 99% as measured in accordance with JIS K5600-4-1. If the opacity rate of the entire laminated sheet including the release sheet is within the above range, the laminated sheet will be reliably detected in the printer when printing on the laminated sheet using a printer, so that the desired image can be reliably printed on the laminated sheet without any problems such as being unable to print.

[0095] The overall opacity of the laminated sheet, including the release liner, is measured by fixing the laminated sheet to opacity test paper, in accordance with the test method compliant with Method B of JIS K5600-4-1.

[0096] The laminated sheet of this disclosure preferably has a rigidity of 300 mg to 1200 mg, and more preferably 300 mg to 700 mg, in the printer transport direction (when the laminated sheet is in roll form) or the MD direction (when the laminated sheet is a single sheet), measured in accordance with the JIS L 1085 standard. This rigidity of the entire laminated sheet (i.e., a laminated sheet having a release sheet, adhesive layer, and base layer as essential components, and an optional white printing layer, adhesive layer, opacity layer, image-receiving layer, and protective layer) is measured in accordance with the JIS L 1085 standard. If the rigidity of the entire laminated sheet is within the above range, the laminated sheet will not curl in the printer when printing on it using a printer, and the desired image can be reliably printed on the laminated sheet. Furthermore, the rigidity of the entire laminated sheet in the direction perpendicular to the printer transport direction (when the laminated sheet is in roll form) or in the TD direction (when the laminated sheet is a single sheet) is preferably 900 mg to 2000 mg, and more preferably 920 mg to 1500 mg.

[0097] The total thickness of the laminated sheet of this disclosure (i.e., a laminated sheet having a release sheet, an adhesive layer, and a substrate layer as essential components, and having a white printing layer, an adhesive layer, an opacity layer, an image-receiving layer, and a protective layer as optional components) is preferably 50 μm or more, more preferably 150 μm or more, preferably 250 μm or less, and more preferably 200 μm or less. For example, the total thickness of the laminated sheet is 150 μm or more and 250 μm or less. When the total thickness of the laminated sheet is within the above range, the opacity of the laminated sheet and the rigidity / softness of the laminated sheet in the printer transport direction (MD direction) are more likely to satisfy the above requirements.

[0098] [Applications of laminated sheets] The following describes some examples of applications for the laminated sheets described herein. In one embodiment, the laminated sheet can be used as a skin-pattern sheet (skin sheet) for application to the skin by forming an image on the receiving layer. Examples of skin-pattern sheets include skin-concealing sheets, tattoo stickers, and body paint stickers.

[0099] In one embodiment, a textured sheet can be produced from a laminated sheet. For example, multiple textured sheets may be produced from a laminated sheet. For example, a roll of laminated sheet may be cut to produce individual laminated sheets in product form.

[0100] When using a skin-patterned sheet, for example, as a body paint sticker, applying it so that its adhesive layer is in contact with the user's skin allows the laminated sheet to show through to a certain extent, revealing the skin's natural color, resulting in a more natural appearance while also allowing the design to be clearly visible.

[0101] Furthermore, when creating a skin-like design sheet by on-demand printing of an arbitrary design onto a laminated sheet, if the rigidity and flexibility of the laminated sheet in the printer transport direction (when the laminated sheet is in roll form), the MD direction, or the TD direction (when the laminated sheet is a single sheet), as well as the surface roughness of the release liner, are adjusted, the design can be reproduced more faithfully to the original artwork. This results in a more natural appearance when the skin-like design sheet is applied to the user's skin.

[0102] [Manufacturing method for skin-patterned sheets] The textured sheet of this disclosure can be manufactured, for example, by a heat transfer process. A long base film corresponding to the laminated sheet of this disclosure is prepared. The base film may be provided with a release sheet. This base film and the thermal transfer sheet are set in a thermal transfer printer.

[0103] A thermal transfer sheet comprises a substrate and a transfer-type receiving layer, a dye layer, and an optional protective layer, arranged sequentially on one surface of the substrate. The receiving layer is a transparent layer that receives the dye migrated from the thermal transfer sheet. Examples of dye layers include a yellow dye layer, a magenta dye layer, and a cyan dye layer. The dye layer contains a binder resin and a sublimable dye. Known materials can be used for the yellow dye layer, magenta dye layer, and cyan dye layer. Details of the receiving layer and protective layer are as described above. When printing directly onto the substrate layer or when the receiving layer is pre-provided on the substrate film, it is not necessary for the thermal transfer sheet to have a receiving layer or to perform the transfer of the receiving layer as described below.

[0104] The thermal head and platen roll of the thermal transfer printer sandwich the base film and the thermal transfer sheet, and heat the thermal transfer sheet. The thermal head heats the transfer-type receiving layer and transfers the receiving layer onto the base film. Next, the thermal head heats the yellow dye layer, magenta dye layer, and cyan dye layer in sequence, based on data such as a skin pattern sheet, and transfers the dyes to the receiving layer transferred onto the base film to form an image. This allows any pattern to be printed on the laminated sheet. If necessary, the protective layer of the thermal transfer sheet is then heated and transferred onto the receiving layer on which the image has been formed.

[0105] If necessary, a embossing treatment, such as embossing, may be applied to the surface of the base film to form an uneven surface. For example, an embossing plate or a shaping sheet can be used for embossing. The embossing plate and shaping sheet can be used without any particular limitations. The surface shape of the embossing plate and shaping sheet and the surface shape formed by them have substantially opposite shapes.

[0106] A long, laminated sheet is cut parallel to the width direction of the laminated sheet using a cutter in a thermal transfer printer to obtain a single-sheet laminated sheet. A protective sheet may be attached to the surface resin layer of the single-sheet laminated sheet as needed.

[0107] Next, the laminated sheet is cut into the shape of the product form of the textured sheet using a known cutting device. For example, when the laminated sheet is viewed from above, it is punched out in a circular shape. The shape is not particularly limited, and it is possible to punch out not only geometric patterns such as rectangles, rhombuses, hearts, and ellipses, but also animal shapes, human shapes, building shapes, vehicle shapes, and other patterns that match the print design. Furthermore, since there is no peeling during printing in the self-adhesive thermal transfer image receiving sheet of the present invention, it can be printed using a thermal transfer printer as a self-adhesive thermal transfer image receiving sheet having pre-cut "frames".

[0108] As described above, a skin-like pattern sheet with the desired shape can be produced. In the above method, the adhesive layer may be provided on the substrate film after the heat transfer process. In this case, it is preferable to provide a release sheet after the formation of the adhesive layer.

[0109] Although a method for manufacturing a skin-patterned sheet by a thermal transfer process has been described, the method for manufacturing a skin-patterned sheet described herein is not limited to the above method. For example, a skin-patterned sheet may be manufactured by sequentially forming each layer of a laminated sheet.

[0110] Furthermore, while the present disclosure describes a method for manufacturing a textured sheet using a thermal transfer printer, it is not limited to this. A thermal transfer printer or an inkjet printer can be used as the printer. Among these, a thermal transfer printer is preferred. As a thermal transfer printer, a dye-sublimation type thermal transfer printer with excellent color reproduction and gradation is preferred.

[0111] This disclosure relates, for example, to the following [1] to [9]. [1] A laminated sheet comprising at least a base layer, an adhesive layer, and a release sheet, wherein the adhesive layer and the base layer are laminated on the release sheet in this order in the thickness direction, The opacity (YB / YW) obtained by a test method compliant with JIS K5600-4-1, measured from the substrate layer side of the laminated sheet excluding the release sheet, is 5% or more and 40% or less. A laminated sheet having an opacity of 30% or more and 99% or less, obtained by a test method in accordance with JIS K5600-4-1, including the release sheet. [2] The laminated sheet according to [1], wherein the rigidity of the laminated sheet in the printer transport direction, as measured in accordance with JIS L 1085, is 300 mg or more and 1200 mg or less. [3] The laminated sheet according to [1] or [2], wherein the thickness of the laminated sheet is 150 to 250 μm. [4] The release sheet is a resin film, a laminated sheet according to any one of [1] to [3]. [5] The laminated sheet according to [4], wherein the resin film is a PET film having a thickness of 50 μm or more and 250 μm or less. [6] The laminated sheet according to any one of [1] to [5], further comprising a white printing layer on the side of the release sheet opposite to the adhesive layer. [7] The laminated sheet according to any one of [1] to [6], further comprising a receiving layer on the side of the base layer opposite to the adhesive layer. [8] The laminated sheet according to any one of [1] to [7], wherein the laminated sheet is for a dye-sublimation thermal transfer printer. [9] A skin-pattern sheet comprising a laminated sheet as described in any of [1] to [8]. [Examples]

[0112] The laminated sheets of this disclosure will be described in more detail with reference to examples, but the laminated sheets of this disclosure are not limited to these examples. In the following description, "parts" means "parts by mass".

[0113] <Example 1> A polyvinyl chloride film with a thickness of 70 μm and an opacity of 11.4% was prepared as the base layer. An adhesive layer with a thickness of 10 μm was formed on one side of the base layer using an acrylic adhesive (SK Dyne MD-1, manufactured by Soken Chemical Co., Ltd.). Next, a PET film with a thickness of 100 μm (Toray Industries, Inc., Polyester Film Lumirror®) was prepared as the release sheet substrate. The following release layer coating liquid was applied to one side of the release sheet substrate and dried to form a release layer with a thickness of 0.3 μm. The following white printing layer forming coating liquid was applied to the other side of the release sheet substrate and dried to form a white printing layer with a thickness of 1 μm. Then, the adhesive layer and the side with the release layer of the release sheet were bonded together to create a laminated sheet with a total thickness of 181 μm, consisting of a white printed layer (1 μm) / release sheet substrate (100 μm) / release layer (0.3 μm) / adhesive layer (10 μm) / substrate layer (70 μm).

[0114] "Release layer coating liquid" • Addition polymerization agent silicone 100 parts (KS847H Shin-Etsu Chemical Co., Ltd.) • Toluene 200 copies

[0115] "Coating liquid for forming a white printing layer" (Coating liquid for forming a back layer) • Polyvinyl butyral 10 pieces (Manufactured by Sekisui Chemical Co., Ltd., S-REC® BL-7) • Silicon dioxide 7.4 parts (Manufactured by Fuji Silysia Chemical Co., Ltd., Silysia 380) • Titanium chelate 0.32 parts (Manufactured by Denka Polymer Co., Ltd., AT chelating agent) • Toluene 54 units IPA 54 copies (Coating liquid for the back surface layer) • Polyvinyl butyral 10 pieces (Esrec® BL-7, Sekisui Chemical Co., Ltd.) • Nylon particles (average particle size 7.5 μm) 2 parts (MW330 Shinto Paint Co., Ltd.) ·Pt catalyst 0.44 part (CAT-PL-50T Shin-Etsu Chemical Co., Ltd.) • Reaction retarder 0.36 parts (CAT-PLR-5 Shin-Etsu Chemical Co., Ltd.) • Titanium chelate 2.4 parts (AT chelating agent, Denka Polymer Co., Ltd.) • Toluene (30 copies) Isopropyl alcohol 30 parts

[0116] <Example 2> A laminated sheet with a total thickness of 161 μm was prepared in the same manner as in Example 1, except that a polyvinyl chloride film with a thickness of 50 μm and an opacity of 11.0% was used as the base layer, by adding white pigment.

[0117] <Example 3> A laminated sheet with a total thickness of 186 μm was prepared in the same manner as in Example 2, except that a PET film with a thickness of 125 μm (Toray Industries, Inc., Polyester Film Lumirror®) was used as the release sheet substrate.

[0118] <Example 4> A laminated sheet with a total thickness of 161 μm was prepared in the same manner as in Example 2, except that a 100 μm thick polyester synthetic paper (CRISPR K1212, manufactured by Toyobo Co., Ltd.) was used as the release sheet substrate, and a coating liquid for forming a transparent printing layer was used instead of a coating liquid for forming a white printing layer.

[0119] "Coating liquid for forming a transparent printing layer" (Coating liquid for forming a back layer) • Polyvinyl butyral 10 pieces (Manufactured by Sekisui Chemical Co., Ltd., S-REC® BL-7) • Titanium chelate 0.32 parts (Manufactured by Denka Polymer Co., Ltd., AT chelating agent) • Toluene 54 units IPA 54 copies (Coating liquid for the back surface layer) • Polyvinyl butyral 10 pieces (Esrec® BL-7, Sekisui Chemical Co., Ltd.) • Nylon particles (average particle size 7.5 μm) 2 parts (MW330 Shinto Paint Co., Ltd.) ·Pt catalyst 0.44 part (CAT-PL-50T Shin-Etsu Chemical Co., Ltd.) • Reaction retarder 0.36 parts (CAT-PLR-5 Shin-Etsu Chemical Co., Ltd.) • Titanium chelate 2.4 parts (AT chelating agent, Denka Polymer Co., Ltd.) • Toluene (30 copies) Isopropyl alcohol 30 parts

[0120] <Example 5> A laminated sheet with a total thickness of 186 μm was prepared in the same manner as in Example 4, except that a polyester synthetic paper (CRISPR K1212, manufactured by Toyobo Co., Ltd.) with a thickness of 125 μm was used as the release sheet substrate.

[0121] <Example 6> A laminated sheet with a total thickness of 163 μm was prepared in the same manner as in Example 1, except that the following opacity layer forming coating liquid was applied to a 50 μm thick polyvinyl chloride film without added white pigment as the base layer, dried to form an opacity layer with a thickness of 1 μm, and then applied and dried a receptive layer forming coating liquid to form a receptive layer with a thickness of 1 μm.

[0122] "Coating liquid for forming an opacity layer" Titanium dioxide 58 parts (Manufactured by Ishihara Sangyo Co., Ltd., R-780) • (Meth)acrylic resin 10.5 parts (Manufactured by Mitsubishi Chemical Corporation, Dianaal® BR-87) • (Meth)acrylic resin 31.5 parts (Manufactured by Mitsubishi Chemical Corporation, Dianaal® BR-85) • Methyl ethyl ketone (MEK) 100 units • Toluene 100 copies

[0123] "Coating liquid for forming a receptive layer" • Vinyl chloride-vinyl acetate copolymer, 100 units (1000A, manufactured by Denki Kagaku Kogyo Co., Ltd.) Epoxy-modified silicone 3.5 parts (X-22-3000T, manufactured by Shin-Etsu Chemical Co., Ltd.) • Methylstyrene-modified silicone 3.5 parts (X-24-510, manufactured by Shin-Etsu Chemical Co., Ltd.) • Polyether-modified silicone 2.5 parts (FZ2101, manufactured by Nippon Unicar Co., Ltd.) • Methyl ethyl ketone (MEK) 200 copies • Toluene 200 copies

[0124] <Example 7> A laminated sheet with a total thickness of 181 μm was prepared in the same manner as in Example 1, except that a polyvinyl chloride film (flexible) with a thickness of 70 μm and an opacity of 11.0% was used as the base layer, by adding white pigment.

[0125] <Example 8> A laminated sheet with a total thickness of 151 μm was prepared in the same manner as in Example 1, except that a 30 μm thick polyurethane film without added white pigment was used as the base layer, onto which the opacity layer forming solution described in Example 6 was applied and dried to form an opacity layer with a thickness of 1 μm, and then the receptacle layer forming solution described in Example 6 was applied and dried to form a receptacle layer with a thickness of 9.0 μm.

[0126] <Example 9> As the base material and adhesive layer, the polyvinyl chloride film and adhesive layer from Example 2 were prepared. Next, we prepared a release sheet with a thickness of 105 μm (Sumika Kako Paper Co., Ltd. SL-70S(U2)). Then, the adhesive layer and the release surface of the release sheet were bonded together to create a laminated sheet with a layer structure of release sheet (105 μm) / adhesive layer (10 μm) / base layer (70 μm), with a total thickness of 181 μm.

[0127] <Example 10> A laminated sheet with a total thickness of 111 μm was prepared in the same manner as in Example 2, except that a PET film with a thickness of 50 μm (Toray Industries, Inc., Polyester Film Lumirror®) was used as the release sheet substrate.

[0128] <Example 11> A laminated sheet with a total thickness of 136 μm was prepared in the same manner as in Example 2, except that a PET film with a thickness of 50 μm (Toray Industries, Inc., Polyester Film Lumirror®) was used as the release sheet substrate.

[0129] <Example 12> A laminated sheet with a total thickness of 230 μm was prepared in the same manner as in Example 9, except that a release liner with a thickness of 170 μm (Sumika Kako Paper Co., Ltd. SLB-110WT) was used as the release liner.

[0130] <Comparative Example 1> A PET film with a thickness of 100 μm (Toray Industries, Inc., Polyester Film Lumirror®) was prepared as the release sheet substrate. A laminated sheet with a total thickness of 161 μm was prepared in the same manner as in Example 2, except that the transparent printing layer forming coating liquid described in Example 4 was applied to one side of the release sheet instead of the white printing layer forming coating liquid, and dried to form a transparent printing layer with a thickness of 1 μm.

[0131] <Comparative Example 2> A laminated sheet with a total thickness of 161 μm was prepared in the same manner as in Example 2, except that a polyvinyl chloride film with a thickness of 50 μm and an opacity of 96.8% was used as the base layer, by adding white pigment.

[0132] [Measurement method] <Opacity of laminated sheet excluding release liner> The opacity ratio (YB / YW) of the laminated sheet, excluding the release liner, was determined using a test method compliant with Method B of JIS K5600-4-1 (Opacity: for light-colored paints). Specifically, in Examples 1-12 and Comparative Examples 1-2, the adhesive layer formed on one side of the substrate layer of the laminated sheet after the release sheet was peeled off was attached to opacity test paper (AS ONE 1-3783-01), and the tristimulus values ​​YB (Y value of the film attached to the black area) and YW (Y value of the film attached to the white area) were measured and calculated, respectively.

[0133] <Overall opacity rate of laminated sheets> The overall opacity ratio (YB / YW) of the laminated sheet was determined using a test method compliant with Method B of JIS K5600-4-1 (Opacity: for light-colored paints). Specifically, in the laminated sheets formed from a base layer, an adhesive layer, and a release sheet in Examples 1-12 and Comparative Examples 1-2, the release sheet side was placed on top of opacity test paper (AS ONE 1-3783-01) and fixed, and the tristimulus values ​​YB (Y value of the film applied to the black area) and YW (Y value of the film applied to the white area) were measured and calculated, respectively.

[0134] <Skin transparency> For Examples 1-12 and Comparative Examples 1-2, when the laminated sheets with the release liner removed were applied to the skin (application area: face, cheeks), the "transparency of the skin" was evaluated by five evaluators according to the following evaluation criteria. (Evaluator) Reviewer 1: Japanese woman in her 30s Reviewer 2: Japanese woman in her 40s Reviewer 3: Japanese male, 20s Reviewer 4: Japanese male, 30s Reviewer 5: Japanese male, 40s (Evaluation Criteria) ◎: All 5 judged the transparency to be good. ○: 3-4 people judged the transparency to be good. ×A: Three or more people judged that the transparency was not good (it was see-through). ×B: Three or more people judged that the transparency was not good (not transparent).

[0135] <Print quality inconsistencies> (Method of creating photographic prints) The laminated sheets (with release sheets) of Examples 1-12 and Comparative Examples 1-2 were loaded into a thermal transfer printer (DS620, manufactured by Dai Nippon Printing Co., Ltd.), and five 128 / 255 grayscale images were printed using a DS620 ink ribbon. The print uniformity was evaluated according to the following evaluation criteria. (Evaluation Criteria) ○: No unevenness in the print. △: Some areas have uneven printing. ×: There are multiple inconsistencies in the print. ―: Printing failed due to a transport error.

[0136] <Printer transport error> For the laminated sheets (with release sheets) of Examples 1 to 12 and Comparative Examples 1 to 2, the transportability of the laminated sheets in the thermal transfer printer during printing (printer transport errors) in the above-mentioned print uniformity evaluation was evaluated according to the following evaluation criteria. (Evaluation Criteria) ○: No unusual noises or blockages during transport. △1: Blockages sometimes occurred during transport. △2: Abnormal noises sometimes occurred during transport. ×: Printing was not possible.

[0137] <Rigidity and flexibility of laminated sheets> The laminated sheets (with release sheets) of Examples 1-12 and Comparative Examples 1-2 were measured according to the method described in JIS L 1085. A Gurley flexibility tester manufactured by Toyo Seiki Seisakusho Co., Ltd. was used as the measuring instrument.

[0138] <Printer detection> The laminated sheets of Examples 1-12 and Comparative Examples 1-2 were placed in a thermal transfer printer (DS620, manufactured by Dai Nippon Printing Co., Ltd.), and five sheets were cut using the printer's cutter. Printer detection was evaluated according to the following evaluation criteria.

[0139] (Evaluation Criteria) ○: All 5 pieces were cut. ×: There were some items that could not be cut (one or more pieces).

[0140] <Evaluation of peeling in the half-cut punched-out area> The laminated sheets (with release sheets) of Examples 1-12 and Comparative Examples 1-2 were set in a thermal transfer printer (DS620, manufactured by Dai Nippon Printing Co., Ltd.), and five black images with a 0 / 255 grayscale level were printed. The peeling of the half-cut die-cut areas was evaluated according to the following evaluation criteria. (Evaluation Criteria) ○: The half-cut punched-out area was printed without peeling off. △: Part of the half-cut punched-out area has peeled off. ×: Numerous pieces peeled off at the half-cut punched-out section.

[0141] The evaluation results are shown in Table 1.

[0142] [Table 1] [Explanation of Symbols]

[0143] 1 Laminated sheet 10 Release sheets 20 Adhesive layer 30 Base material layer

Claims

1. A laminated sheet comprising at least a base layer, an adhesive layer, and a release sheet, wherein the adhesive layer and the base layer are laminated on the release sheet in this order in the thickness direction, The opacity (YB / YW) obtained by a test method compliant with JIS K5600-4-1, measured from the substrate layer side of the laminated sheet excluding the release sheet, is 5% or more and 40% or less. A laminated sheet having an opacity of 30% or more and 99% or less, obtained by a test method in accordance with JIS K5600-4-1, including the release sheet.

2. The laminated sheet according to claim 1, wherein the rigidity of the laminated sheet in the printer transport direction, as measured in accordance with JIS L 1085, is 300 mg or more and 1200 mg or less.

3. The laminated sheet according to claim 1, wherein the thickness of the laminated sheet is 150 μm or more and 250 μm or less.

4. The laminated sheet according to claim 1, wherein the release sheet is a resin film.

5. The laminated sheet according to claim 4, wherein the resin film is a PET film having a thickness of 50 μm or more and 250 μm or less.

6. The laminated sheet according to claim 1, further comprising a white printing layer on the side of the release sheet opposite to the adhesive layer.

7. The laminated sheet according to claim 1, further comprising a receiving layer on the side of the base layer opposite to the adhesive layer.

8. The laminated sheet according to claim 1, wherein the laminated sheet is for use with a sublimation-type thermal transfer printer.

9. A textured sheet comprising a laminated sheet according to any one of claims 1 to 8.

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