Laminated sheet and skin-decorating sheet

Abstract

The present application provides a laminated sheet which inhibits the generation of wrinkles when attached to the skin, and which can be used as a skin decoration sheet that appears natural in appearance. The laminated sheet has at least a receiving layer, a covering layer, and a base material layer in this order, and the tensile test force at 5% elongation of the laminated sheet at a width of 10 mm, measured in accordance with JIS K7127:1999, is 0.10 N or more and 0.62 N or less.

Description

[0001] Cross-references to related applications

[0002] This application claims priority based on Japanese Patent Application No. 2023-196541, filed on November 20, 2023, which is incorporated herein by reference to its entire disclosure. Technical Field

[0003] This invention relates to laminated sheets and skin-decorative sheets. Background Technology

[0004] Skin-decorative sheets are known for use after being applied to the skin (for example, see Patent Document 1). These sheets, for example, sequentially comprise a release liner, an adhesive layer, a substrate layer, and a protective sheet in the thickness direction. The skin-decorative sheet is applied to the user's skin by peeling the release liner from the adhesive layer, applying the adhesive layer to the skin, and then peeling the protective sheet from the substrate layer.

[0005] Examples of skin-decorative sheets include temporary tattoos and cover-up sheets. Temporary tattoos are sheets with various designs printed on a substrate. They are sold in places such as grocery stores, sports and music events, and amusement parks to enhance the atmosphere. Cover-up sheets are sheets pre-colored using methods such as screen printing. They are used to cover up skin damage or discoloration such as blemishes. Users choose a cover-up sheet that matches their skin tone.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: Japanese Patent No. 6147874 Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] However, the colors of the skin-covering patches available for sale are limited, leading to dissatisfaction among users who are concerned about the color difference between the patch and their underlying skin. Therefore, research is underway to develop a skin-covering patch with a printed layer. This printed layer forms an image by printing on demand from a photograph of the user, ensuring that the color tone matches the user's skin tone. This would reduce the unnatural feeling when the skin-covering patch is applied to the user's skin.

[0011] In such skin-like decorative patches, the desired appearance when applied to the skin is a natural one. However, since skin is translucent, if the printing process makes it opaque, the resulting appearance will differ from the skin's natural look and appear unnatural. Additionally, there is a risk of wrinkles appearing when applied to the skin, also contributing to an unnatural appearance.

[0012] The subject of this disclosure is to provide a laminate that suppresses the formation of wrinkles when applied to the skin and can be used as a skin-decorative sheet that looks natural.

[0013] In addition, the subject of this disclosure is to provide a skin decorative patch that inhibits the formation of wrinkles when applied to the skin and has a natural appearance.

[0014] Methods for solving problems

[0015] The laminate disclosed herein comprises at least a receiving layer, a cover layer, and a substrate layer in sequence, and

[0016] The tensile test force at 5% tension of a laminate with a width of 10 mm, obtained according to the test method of JIS K7127:1999, is ≥0.10N and ≤0.62N.

[0017] Invention Effects

[0018] According to this disclosure, a laminated sheet can be provided that inhibits the formation of wrinkles when applied to the skin and can be used as a skin-decorative sheet that looks natural.

[0019] In addition, according to this disclosure, a skin-decorative sheet can be provided that inhibits the formation of wrinkles when applied to the skin and has a natural appearance. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of a laminated sheet applying one embodiment of the present invention.

[0021] Figure 2 This is a cross-sectional view of a laminated sheet applying one embodiment of the present invention. Detailed Implementation

[0022] The embodiments of this disclosure will now be described in detail. This disclosure can be implemented in many different ways and is not limited to the description of the embodiments illustrated below. To make the description clearer, the drawings sometimes schematically show the width, thickness, and shape of each layer compared to the embodiments; however, this is only an example and does not limit the interpretation of this disclosure. In this specification and the drawings, elements that are the same as those described with respect to previously presented figures are sometimes labeled with the same symbols, and detailed descriptions are appropriately omitted.

[0023] In this disclosure, when multiple candidates for upper and lower limits are listed for a certain parameter, the numerical range of the parameter can also be constructed by combining any one candidate for upper limit and any one candidate for lower limit. Examples of such parameters include physical property values, component content ratios, and layer thickness. As an example, 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" will be explained. In this example, the numerical range of parameter B can be A1 or higher and A4 or lower, or A1 or higher and A5 or lower, or A1 or higher and A6 or lower, or A2 or higher and A4 or lower, or A2 or higher and A5 or lower, or A2 or higher and A6 or lower, or A3 or higher and A4 or lower, or A3 or higher and A5 or lower, or A3 or higher and A6 or lower.

[0024] In this specification, each component (e.g., resin materials and colorants, etc.) mentioned in the following description may be used in one or more forms.

[0025] [Laminated film]

[0026] The laminate of this disclosure comprises at least an acceptor layer, a cover layer, and a substrate layer in sequence.

[0027] Hereinafter, specific examples of the laminated sheets of this disclosure will be described with reference to the accompanying drawings.

[0028] Figure 1 The laminate 1 shown has a substrate layer 10, a cover layer 20, and a receiving layer 30 sequentially in the thickness direction. In this example, an image of a desired color, such as skin color, can be formed on the receiving layer 30 using a coloring agent such as a dye.

[0029] The laminate may also have an adhesive layer (not shown) between the substrate layer and the cover layer. The laminate may also have a substrate layer, an adhesive layer, a cover layer, and a receiving layer in sequence in the thickness direction.

[0030] The laminate may also have a protective layer (not shown) on the substrate layer. The laminate may also have a substrate layer, a cover layer, an acceptor layer, and a protective layer in sequence in the thickness direction.

[0031] The laminate may further have an adhesive layer, a release liner, and a protective sheet (not shown) on the side of the substrate layer opposite to the side facing the receiving layer, as required.

[0032] Figure 2The laminate 1 shown comprises, in the thickness direction, a release sheet 50, an adhesive layer 40, a substrate layer 10, a cover layer 20, and a receiving layer 30. In this example, one or both sides of the substrate layer 10 can be colored with a colorant to a desired color, such as skin tone. A printing layer can be provided on any one or both sides of the substrate layer 10.

[0033] The laminate may, as needed, sequentially include a release liner, an adhesive layer, a substrate layer, a masking layer, an image receiving layer, a protective layer, and a protective sheet as required.

[0034] In one embodiment, the laminated sheet disclosed herein is in the form of a long strip. Figure 1 and Figure 2 It is, for example, a cross-sectional view perpendicular to the length direction of the laminate 1.

[0035] <Substrate Layer>

[0036] The laminate disclosed herein has a substrate layer.

[0037] Examples of substrate layers 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.

[0038] As a substrate layer, a stretchable substrate is preferred, for example. Examples of stretchable substrates include the resin film described above, among which polyvinyl chloride (PVC) film, polyurethane film, and polyethylene film are preferred, and polyurethane film is more preferred.

[0039] The stretchable substrate is preferably characterized by an elongation of 30% or more and 100% or less, in order to follow the expansion and contraction of the substrate when the laminate is attached to the substrate. The elongation of the stretchable substrate is obtained by the test method according to JIS K 7127:1999. The elongation is expressed by the following formula (1).

[0040] Elongation (%) = 100 × (L - L0) / L0 ··· (1)

[0041] In equation (1), L is the length of the stretchable substrate when it breaks after being stretched at a speed of 200 mm / min using a tensile testing machine. In equation (1), L0 is the length of the stretchable substrate before being stretched using the tensile testing machine. A Tensilon universal testing machine can be used as the tensile testing machine.

[0042] The substrate layer may contain additives. Examples of additives include UV absorbers, light stabilizers, antioxidants, colorants, fillers, and release agents. The substrate layer may contain colorants as needed. To make the hue of the laminate match a desired color, such as skin tone, the substrate layer may contain colorants. Examples of colorants include pigments and dyes.

[0043] The thickness of the substrate layer is preferably 3 μm or more. Laminated sheets with a substrate layer thickness of 3 μm or more can, for example, suppress the formation of wrinkles when attaching sheets. In addition, laminated sheets with a substrate layer thickness of 5 μm or more do not wrinkle when the release liner is peeled off from the laminated sheet, allowing for easy peeling of the release liner for attachment and improving workability.

[0044] Furthermore, the thickness of the substrate layer is preferably 10 μm or less, more preferably 7 μm or less. Laminated sheets with such a substrate layer can, for example, suppress the discomfort felt by the user after the sheet is attached.

[0045] Specifically, the thickness of the substrate layer is 3 μm or more and 10 μm or less.

[0046] A printing layer can be disposed on a substrate layer. The printing layer can be a layer used to match the hue of the laminate with a desired color, such as skin tone. The printing layer contains a colorant. Examples of colorants include pigments and dyes.

[0047] <Covering layer>

[0048] The laminated sheet disclosed herein has a cover layer.

[0049] As a masking layer, a white base coat containing white pigments and resin materials can be cited as an example.

[0050] Examples of white pigments include titanium dioxide, zinc oxide, zinc sulfide, barium sulfate, and calcium carbonate. Among these, titanium dioxide is preferred from the viewpoint of whiteness.

[0051] The masking layer may contain one or more white pigments.

[0052] The content of white pigment in the masking 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 masking layer increases the opacity of the masking layer (described later) and the tensile test force at 5% tension of the laminate with a width of 10 mm. Conversely, decreasing the content of white pigment in the masking layer decreases the opacity of the masking layer (described later) and the tensile test force at 5% tension of the laminate with a width of 10 mm.

[0053] 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, imides, cellulose resins, polyol resins, polycarbonates, and ionomer resins.

[0054] The covering layer may contain one or more resin materials.

[0055] The covering layer preferably contains one or both of (meth)acrylic resin and polyol resin as the main resin material. This improves the dispersion stability of the white pigment in the coating liquid used to form the covering layer and suppresses the occurrence of poor coating. The main resin material refers to a resin material that accounts for 70 parts by mass or more out of 100 parts by mass relative to the total amount of resin material contained in the covering layer.

[0056] From the viewpoint of improving the adhesion to the substrate layer when transferred to the substrate layer, the cover layer preferably contains a vinyl resin, and more preferably a vinyl chloride-vinyl acetate copolymer. The content of the vinyl resin in the cover 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 allows for further improvement in the adhesion of the cover layer to the substrate layer while maintaining its heat transferability.

[0057] From the viewpoint of improving adhesion to the substrate layer, the cover layer preferably contains polyester. The polyester content in the cover 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 further improvement in adhesion to the substrate layer while maintaining the heat transferability of the cover layer.

[0058] The resin material in the covering layer is preferably 10% by mass or more and 70% by mass or less, more preferably 10% by mass or more and 50% by mass or less. This prevents the re-aggregation of white pigment and results in high opacity.

[0059] The masking layer may contain additives. Examples of additives include fillers, plasticizers, antistatic agents, UV absorbers, release agents, and dispersants. The masking layer may contain one or more additives.

[0060] The thickness of the covering 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 covering 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 covering layer allows for better coverage of the skin's base. Conversely, decreasing the thickness of the covering layer reduces the coverage rate of the covering layer (described later) and the tensile test force at 5% stretching of the laminate with a width of 10 mm.

[0061] Specifically, the thickness of the covering layer is greater than 0.6 μm and less than 6 μm.

[0062] The opacity (YB / YW) of the masking layer, obtained according to the test method of JIS K5600-4-1, is a value measured and calculated from the surface side of the receiving layer using a laminate consisting of an adhesive layer, a substrate layer, a masking layer, and a receiving layer. This will be detailed in the embodiments described later.

[0063] The coverage rate of the aforementioned covering layer is preferably 15% or more, more preferably 20% or more, and even more preferably 40% or more. Furthermore, the coverage rate of the aforementioned covering layer is preferably 85% or less, more preferably 70% or less, and even more preferably 60% or less. Specifically, the coverage rate of the aforementioned covering layer is 15% or more and 85% or less. If the coverage rate of the covering layer is 15% or more, the laminated sheet having this covering layer can be used as a skin-decorative sheet, effectively covering blemishes and the like when applied to the skin. Additionally, if the coverage rate of the covering layer is 70% or less, it is easier to adjust the tensile test force of the laminated sheet with a width of 10mm at 5% stretch to the desired range. Furthermore, if the coverage rate of the covering layer is 60% or less, the laminated sheet having this covering layer can be used as a skin-decorative sheet, creating a more natural appearance when applied to the skin.

[0064] The masking layer can be formed, for example, by dispersing or dissolving the components described above in a suitable solvent to obtain a coating liquid, applying the obtained coating liquid to any layer disposed on the substrate of the substrate layer or the transfer sheet by the above-described known coating method, and then drying it.

[0065] (Adhesive layer)

[0066] The laminated sheet disclosed herein may have an adhesive layer.

[0067] In one embodiment, the laminate may have an adhesive layer between the substrate layer and the masking layer. In this case, the adhesion between the substrate layer and the masking layer can be better when the masking layer disposed on the transfer sheet is transferred to the substrate layer.

[0068] 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.

[0069] 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.

[0070] The adhesive layer can be a layer obtained by curing a resin material using a curing agent. Examples of curing agents include isocyanate compounds, aliphatic amines, cyclic aliphatic amines, aromatic amines, and acid anhydrides.

[0071] The thickness of the adhesive layer is preferably 0.1 μm or more, more preferably 0.5 μm or more, 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.

[0072] The adhesive layer can be formed, for example, by dispersing or dissolving the components described above in a suitable solvent to obtain a coating liquid, applying the obtained coating liquid onto the cover layer using the known coating method described above, and then drying it.

[0073] <Acceptance Layer>

[0074] The laminated sheet disclosed herein has an acceptor layer.

[0075] The receiving layer is a layer used to receive dyes or the like transferred from the heat transfer sheet. For example, when forming an image using a printer, the image can be formed in advance on the receiving layer provided on the substrate layer, or the substrate layer can be transferred through a masking layer after the image has been formed on the receiving layer provided on the transfer sheet. The image can be, for example, an image used to match the hue of the laminate with a desired color, such as skin tone.

[0076] As the material constituting the receiving layer, resin materials can be used, for example. 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.

[0077] The resin material content in the acceptor layer is preferably 70% by mass or more, more preferably 80% by mass or more, relative to the total mass of the acceptor layer. This, for example, imparts sufficient durability to the acceptor layer.

[0078] The receiving layer may contain additives. Examples of additives include UV absorbers, light stabilizers, antioxidants, colorants, fillers, and release agents.

[0079] The proportion of additives in the acceptor layer relative to the total mass of the acceptor layer is preferably 1% by mass or more, more preferably 2% by mass or more, more preferably 30% by mass or less, and more preferably 20% by mass or less. For example, the proportion of additives in the acceptor layer is 1% by mass or more and 30% by mass or less.

[0080] The thickness of the acceptor 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 acceptor layer is preferably 5.0 μm or less, more preferably 3.0 μm or less, and even more preferably 2.0 μm or less. If the thickness of the acceptor layer is above the lower limit, sufficient print density cannot be obtained. On the other hand, if the thickness of the acceptor layer is below the upper limit, the adherence to the skin is insufficient, and a seamless feel with the skin cannot be achieved. For example, the thickness of the acceptor layer is 0.3 μm or more and 5.0 μm or less.

[0081] When a receiving layer is pre-positioned on a substrate layer, during the process of applying a coating liquid for the receiving layer to a cover layer and then drying it, the substrate layer may sometimes melt and break, or be modified or deformed due to the solvent contained in the coating liquid. In this case, it is preferable to transfer the receiving layer onto the substrate layer by heat transfer. The receiving layer can be pre-positioned on the substrate layer, or it can be heat-transferred onto the substrate layer during image formation.

[0082] (Protective layer)

[0083] The laminated sheet disclosed herein may have a protective layer.

[0084] The laminate disclosed herein may, for example, sequentially comprise a substrate layer, a masking layer, a receiving layer, and a protective layer, or sequentially comprise a substrate layer, a masking layer, a receiving layer on which an image is formed, and a protective layer.

[0085] As the material constituting the protective layer, resin materials can be used, for example. Examples of resin materials include polyester, polyamide, polyurethane, polycarbonate, vinyl resin, styrene resin, acrylic resin, acrylic polyol resin, cellulose resin, phenoxy resin, epoxy resin, resins obtained by modifying these resins with organosilicon, ultraviolet-absorbing resins, and ionizing radiation-curing resins.

[0086] 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 ethyl cellulose, hydroxyethyl cellulose, ethyl hydroxycellulose, methyl cellulose, and cellulose acetate.

[0087] Examples of ionizing radiation-cured resins include resins obtained by crosslinking and curing free radical polymers or free radical polymeric oligomers through ionizing radiation irradiation. More specifically, examples include resins obtained by adding a photopolymerization initiator to a free radical polymer or free radical polymeric oligomer as needed, and then polymerizing and crosslinking it by electron beam or ultraviolet irradiation.

[0088] The proportion of resin material 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, for example, imparts sufficient durability to the protective layer.

[0089] The protective layer may contain additives. Examples of additives include UV absorbers, light stabilizers, antioxidants, colorants, fillers, and release agents. The protective layer may contain colorants as needed. To ensure the color tone of the laminate matches a desired color, such as skin tone, the protective layer may contain colorants. Examples of colorants include pigments and dyes.

[0090] The proportion of additives in the protective layer relative to the total mass of the protective layer is preferably 1% by mass or more, more preferably 2% by mass or more, more preferably 20% by mass or less, and more preferably 15% by mass or less. For example, the proportion of additives in the protective layer is 1% by mass or more and 20% by mass or less.

[0091] 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 protection to the laminated sheets. The thickness of the protective layer is, for example, 0.1 μm or more and 20 μm or less.

[0092] The protective layer can be formed, for example, by applying a coating liquid containing the above-mentioned material to the receiving layer using known methods such as roller coating, reverse roller coating, gravure coating, reverse gravure coating, bar coating, and doctor bar coating, and then drying it.

[0093] The protective layer can be formed, for example, by preparing a heat transfer sheet with a protective layer, overlapping the heat transfer sheet onto a substrate film or the like corresponding to the substrate layer, and transferring the protective layer onto a receiving layer or a receiving layer with an image formed by using a heat transfer process, thereby forming the protective layer.

[0094] (Adhesive layer)

[0095] The laminated sheet disclosed herein may have an adhesive layer.

[0096] The laminate disclosed herein may, for example, sequentially comprise a release liner, an adhesive layer, a substrate layer, a masking layer, a receiving layer, and a receiving layer on which an image is formed. The release liner will be described later.

[0097] Adhesive layers are formed, for example, using adhesives. Adhesives, also known as pressure-sensitive adhesives, are materials that are adhesive at room temperature and can bond to objects by applying pressure. For example, even when the objects bonded to the adhesive layer are peeled off, the adhesive layer retains its functional adhesive strength.

[0098] Examples of adhesives include acrylic adhesives, urethane adhesives, silicone adhesives, rubber adhesives, vinyl alkyl ether adhesives, polyester adhesives, polyamide adhesives, and fluorinated adhesives. The adhesive may contain a solvent. For example, water-based and solvent-based solvents can be used. As an adhesive, it is preferable to select one that is gentle on the skin and causes minimal irritation, such as acrylic adhesives and urethane adhesives, for medical use.

[0099] The adhesive layer may contain additives. Examples of additives include UV absorbers, light stabilizers, antioxidants, colorants, fillers, and release agents. The adhesive layer may contain colorants as needed. To ensure the laminate's hue matches a desired color, such as skin tone, the adhesive layer may contain colorants. Examples of colorants include pigments and dyes.

[0100] 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, the possibility of damaging the adhered object (especially human or animal skin) is small, for example, in the event of accidental adhesion or peeling during replacement of the sheet. If the adhesive strength is 100 gf / 50 mm or more, the adhesion to the adhered object (especially human or animal skin) can be ensured, and the sheet peeling due to sweating, activity, etc., can be suppressed.

[0101] The thickness of the adhesive layer is preferably 3 μm or more, more preferably 5 μm or more, more preferably 40 μm or less, and even more preferably 30 μm or less. For example, the thickness of the adhesive layer is 3 μm or more and 40 μm or less.

[0102] (Peeling tablet)

[0103] The laminated sheet disclosed herein may include a release sheet.

[0104] The laminate disclosed herein may, for example, sequentially comprise a release sheet, an adhesive layer, a substrate layer, a masking layer, a receiving layer, and a receiving layer on which an image is formed.

[0105] Examples of release sheets include release paper for at least one side of a paper substrate and resin films for at least one side of a resin film. Examples of release treatments include those using silicone resin-based release agents, alkyd resin-based release agents, long-chain alkyl compound-based release agents, and fluoropolymer-based release agents. Examples of resin films include those formed from resin materials such as polyolefins, vinyl resins, styrene resins, acrylic resins, fluoropolymers, polyesters, and polyamides.

[0106] The thickness of the release liner is preferably 50 μm or more, more preferably 100 μm or more, more preferably 300 μm or less, and even more preferably 200 μm or less. For example, the thickness of the release liner is 50 μm or more and 300 μm or less.

[0107] (Protective film)

[0108] The laminate disclosed herein may include a protective sheet disposed on a substrate layer in a peelable manner. Examples of protective sheets include low-density polyethylene (LDPE) sheets and polypropylene (PP) sheets. The protective sheet may, for example, be provided with a weak adhesive layer. The weak adhesive layer may be formed using acrylic-based weak adhesives and urethane-based weak adhesives.

[0109] The thickness of the protective film is, for example, 10 μm or more and 200 μm or less.

[0110] <Laminated film>

[0111] The laminated sheets disclosed herein are preferably any of the layer configurations shown below. It should be noted that in the layer configurations shown below, " / " indicates interlayer spacing.

[0112] • Substrate layer / Masking layer / Receptive layer

[0113] • Substrate layer / Adhesive layer / Masking layer / Receptive layer

[0114] • Substrate layer / Masking layer / Receptive layer / Protective layer

[0115] • Substrate layer / Adhesive layer / Masking layer / Acceptor layer / Protective layer

[0116] • Substrate layer / Printing layer / Masking layer / Receptor layer

[0117] • Substrate layer / Printed layer / Adhesive layer / Masking layer / Receptive layer

[0118] • Substrate layer / Printing layer / Masking layer / Receptor layer / Protective layer

[0119] • Substrate layer / Printed layer / Adhesive layer / Masking layer / Receptive layer / Protective layer

[0120] • Release sheet / adhesive layer / substrate layer / masking layer / receptor layer

[0121] • Release sheet / adhesive layer / substrate layer / adhesive layer / masking layer / receptor layer

[0122] • Release sheet / adhesive layer / substrate layer / masking layer / acceptor layer / protective layer

[0123] • Release sheet / adhesive layer / substrate layer / adhesive layer / masking layer / receptor layer / protective layer

[0124] • Release sheet / adhesive layer / substrate layer / printed layer / masking layer / receptor layer

[0125] • Release sheet / adhesive layer / substrate layer / printed layer / adhesive layer / masking layer / receptor layer

[0126] • Release sheet / adhesive layer / substrate layer / printed layer / masking layer / acceptor layer / protective layer

[0127] • Release sheet / Adhesive layer / Substrate layer / Printed layer / Adhesive layer / Mask layer / Receptor layer / Protective layer

[0128] • Release film / Adhesive layer / Substrate layer / Mask layer / Receptor layer ( / Protective film)

[0129] • Release sheet / Adhesive layer / Substrate layer / Adhesive layer / Mask layer / Receptor layer ( / Protective sheet)

[0130] • Release sheet / Adhesive layer / Substrate layer / Mask layer / Acceptor layer / Protective layer ( / Protective sheet)

[0131] • Release sheet / Adhesive layer / Substrate layer / Adhesive layer / Mask layer / Receptor layer / Protective layer ( / Protective sheet)

[0132] • Release film / Adhesive layer / Substrate layer / Printed layer / Mask layer / Receptor layer ( / Protective film)

[0133] • Release sheet / Adhesive layer / Substrate layer / Printed layer / Adhesive layer / Mask layer / Receptor layer ( / Protective sheet)

[0134] • Release sheet / Adhesive layer / Substrate layer / Printed layer / Mask layer / Receptor layer / Protective layer ( / Protective sheet)

[0135] • Release sheet / Adhesive layer / Substrate layer / Printed layer / Adhesive layer / Mask layer / Receptor layer / Protective layer ( / Protective sheet)

[0136] • Release film / Adhesive layer / Substrate layer / Masking layer / Image receiving layer

[0137] • Release film / Adhesive layer / Substrate layer / Bonding layer / Masking layer / Image receiving layer

[0138] • Release film / Adhesive layer / Substrate layer / Masking layer / Image receiving layer / Protective layer

[0139] • Release film / Adhesive layer / Substrate layer / Bonding layer / Masking layer / Image receiving layer / Protective layer

[0140] • Release film / Adhesive layer / Substrate layer / Printed layer / Masking layer / Image-bearing layer

[0141] • Release film / Adhesive layer / Substrate layer / Printed layer / Bonding layer / Masking layer / Image-forming receiving layer

[0142] • Release film / Adhesive layer / Substrate layer / Printing layer / Masking layer / Image receiving layer / Protective layer

[0143] • Release film / Adhesive layer / Substrate layer / Printed layer / Bonding layer / Masking layer / Image receiving layer / Protective layer

[0144] • Release film / Adhesive layer / Substrate layer / Masking layer / Image-bearing receiving layer ( / Protective film)

[0145] • Release film / Adhesive layer / Substrate layer / Bonding layer / Masking layer / Image-bearing receiving layer ( / Protective film)

[0146] • Release film / Adhesive layer / Substrate layer / Masking layer / Image-receiving layer / Protective layer ( / Protective film)

[0147] • Release film / Adhesive layer / Substrate layer / Bonding layer / Masking layer / Image-receiving layer / Protective layer ( / Protective film)

[0148] • Release film / Adhesive layer / Substrate layer / Printed layer / Masking layer / Image-forming receiving layer ( / Protective film)

[0149] • Release film / Adhesive layer / Substrate layer / Printed layer / Bonding layer / Masking layer / Image-forming receiving layer ( / Protective film)

[0150] • Release film / Adhesive layer / Substrate layer / Printed layer / Masking layer / Image-forming receiving layer / Protective layer ( / Protective film)

[0151] • Release film / Adhesive layer / Substrate layer / Printed layer / Bonding layer / Masking layer / Image-forming receiving layer / Protective layer ( / Protective film)

[0152] The laminated sheet disclosed herein, when stretched by 5% according to the test method of JIS K7127:1999, has a tensile test force of 0.10 N or more and 0.62 N or less when the laminated sheet is 10 mm wide. Preferably, the tensile test force is 0.10 N or more and 0.41 N or less. If the tensile test force is within the above range, the formation of wrinkles when the laminated sheet is applied to the skin can be suppressed, thus enabling it to be used as a skin-decorative sheet with a natural appearance.

[0153] In addition, if the tensile test force is 0.10N or more and 0.41N or less, the laminated sheet can more effectively suppress the formation of wrinkles when it is applied to the skin when used as a skin decorative sheet.

[0154] Furthermore, according to the laminated sheet disclosed herein, when printing with a thermal transfer printer, the generation of print offset can be suppressed, thus enabling it to be used as a skin-like decorative sheet with a natural appearance.

[0155] The inventors of this application conducted in-depth research and found that the tensile test force at 5% stretch of the laminate with a width of 10 mm is affected by the thickness of the covering layer constituting the laminate and the proportion of white pigment in the covering layer.

[0156] Specifically, increasing the thickness of the covering layer and the proportion of white pigment increases the tensile test force of the laminate. Furthermore, if the tensile test force exceeds 0.62 N, wrinkles will appear when the laminate is applied to the skin.

[0157] On the other hand, reducing the thickness of the covering layer and the proportion of white pigment reduces the tensile test force of the laminate. This allows the laminate to suppress wrinkle formation when applied to the skin, but it also reduces the coverage of the covering layer.

[0158] The total thickness of the laminate comprising a substrate layer, a cover layer, and a receiving layer disclosed herein is preferably 4.0 μm or more, more preferably 6.0 μm or more, more preferably 15.0 μm or less, and more preferably 10.0 μm or less. For example, the total thickness of the laminate is 4.0 μm or more and 15.0 μm or less. If the total thickness of the laminate is within the above range, the tensile test force at 5% tension with a width of 10 mm easily meets the above conditions.

[0159] [Applications of laminated sheets]

[0160] The following describes one example of the use of the laminated sheet disclosed herein.

[0161] In one embodiment, the laminated sheet, by forming an image on the receiving layer, can be used as a skin decorative sheet (skin patch) for attachment to the skin. Examples of skin decorative sheets include skin coverings and temporary tattoos.

[0162] In another embodiment, the laminated sheet can also be used as an image-free skin decoration sheet by not forming an image on the receiving layer.

[0163] In one implementation, skin-decorative sheets can be made from laminated sheets. For example, multiple skin-decorative sheets can also be made from laminated sheets. For example, rolled laminated sheets can also be cut to create sheet-like laminated sheets in the form of a product.

[0164] By attaching skin decorative patches to skin with features such as blemishes, bruises, freckles, wrinkles, sagging, pores, scars, acne marks, heat scars, and discoloration caused by skin diseases through contact with the skin via their adhesive layer, these features can be covered up and made inconspicuous.

[0165] Furthermore, skin-decorative patches are produced by printing on-demand images of the user onto the laminated film, ensuring that the color of the patch matches the user's skin tone. This reduces any unnatural feeling when the patch is applied to the user's skin.

[0166] [Manufacturing method of skin-decorative patches]

[0167] The skin-decorative film disclosed herein can be produced, for example, by a heat transfer process.

[0168] Prepare a strip-shaped substrate film corresponding to the laminated sheet of this disclosure. An adhesive layer and a release liner may also be provided on the substrate film. Place the substrate film and the heat transfer sheet into a heat transfer printer.

[0169] The heat transfer film comprises a substrate, a receiving layer of the transfer mold arranged sequentially on one side of the substrate, a dye layer, and an optional protective layer. The receiving layer is transparent and receives the dye transferred from the heat transfer film. Examples of dye layers include yellow dye layers, magenta dye layers, and cyan dye layers. 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 regarding the receiving layer and protective layer are as described above. If a receiving layer is pre-formed on the substrate film, the heat transfer film does not need to have a receiving layer, and the transfer of the receiving layer described below is unnecessary.

[0170] A thermal transfer printer uses a thermal head and pressure rollers to hold a substrate film and a thermal transfer sheet, and heats the thermal transfer sheet. The thermal head heats the receiving layer of the transfer mold, transferring the receiving layer onto the substrate film. Next, based on data from a skin-like decorative film, the thermal head sequentially heats a yellow dye layer, a magenta dye layer, and a cyan dye layer, transferring the dyes to the receiving layer on the substrate film, thus forming an image. This allows for easy matching of the laminated film's color to the user's skin tone. If necessary, a protective layer of the thermal transfer sheet is then heated, transferring the protective layer onto the receiving layer where the image has been formed.

[0171] Embossed or patterned shapes can be formed on the surface of the substrate film as needed. Embossing can be performed using, for example, embossing stencils or patterned sheets. Embossing stencils and patterned sheets can be used without particular restrictions. The surface shapes of the embossing stencils and patterned sheets are generally opposite to the surface shapes they shape.

[0172] Using the cutter inside the thermal transfer printer, the long strip of laminate is cut parallel to the width direction of the laminate to obtain a sheet-like laminate. A protective film can also be attached to the resin layer on the surface of the sheet-like laminate, if needed.

[0173] Next, the laminated sheet is cut into the shape of a skin-decorative sheet using a known cutting device. For example, when viewed from above, the laminated sheet is punched into a circle. The shape is not particularly limited.

[0174] As described above, it is possible to create skin-decorative pieces with the desired shape.

[0175] In the above method, the adhesive layer can be applied to the substrate film after the heat transfer process. In this case, it is preferable to apply the release liner after the adhesive layer is formed.

[0176] A method for manufacturing skin-decorative sheets using a heat transfer process has been described, but the method for manufacturing skin-decorative sheets disclosed herein is not limited to the above method. For example, skin-decorative sheets can also be manufactured by sequentially forming layers of a laminate.

[0177] Furthermore, the method for manufacturing skin decorative sheets disclosed herein describes the use of a thermal transfer printer (thermal printer), but is not limited thereto.

[0178] As for printers, thermal transfer printers, inkjet printers, etc. can be used. Among them, thermal transfer printers are more suitable.

[0179] As a thermal transfer printer, it is suitable for sublimation type thermal transfer printers with excellent color reproduction and tonal characteristics.

[0180] This disclosure relates, for example, to the following [1] to

[16] .

[0181] [1] A laminate, comprising at least a receiving layer, a cover layer and a substrate layer in sequence, and

[0182] The tensile test force at 5% tension of the laminate with a width of 10 mm, obtained according to the test method of JIS K7127:1999, is ≥0.10N and ≤0.62N.

[0183] [2] According to the laminated sheet described in [1], the thickness of the above-mentioned covering layer is 0.8 μm or more and 6 μm or less.

[0184] [3] According to the laminated sheet described in [1] or [2], wherein the aforementioned covering layer contains white pigment,

[0185] The white pigment in the aforementioned covering layer contains 40% by mass or more and 85% by mass or less.

[0186] [4] According to the laminated sheet described in [3], the white pigment mentioned above is titanium oxide.

[0187] [5] The laminate described in any one of [1] to [4], wherein the opacity (YB / YW) of the above-mentioned opacifying layer is 15% or more, obtained by the test method according to JISK5600-4-1.

[0188] [6] The laminate described in any one of [1] to [4], wherein the opacity (YB / YW) of the above-mentioned opacifying layer is 40% or more, obtained by the test method according to JISK5600-4-1.

[0189] [7] The laminate described in any one of [1] to [6], wherein the opacity (YB / YW) of the above-mentioned opacifying layer obtained by the test method according to JISK5600-4-1 is 85% or less.

[0190] [8] The laminate according to any one of [1] to [7], wherein the thickness of the substrate layer is 3 μm or more and 10 μm or less.

[0191] [9] The laminate according to any one of [1] to [7], wherein the thickness of the substrate layer is 3 μm or more and 7 μm or less.

[0192]

[10] The laminate according to any one of [1] to [7], wherein the thickness of the substrate layer is 3 μm or more and 5 μm or less.

[0193]

[11] The laminate according to any one of [1] to

[10] , wherein the substrate layer is a polyurethane film.

[0194]

[12] The laminated sheet described in any one of [1] to

[11] , wherein the tensile test force is 0.10 N or more and 0.41 N or less.

[0195]

[13] The laminate according to any one of [1] to

[12] , wherein the thickness of the laminate as a whole, consisting of the receiving layer, the covering layer and the substrate layer, is 4.0 μm or more and 15.0 μm or less.

[0196]

[14] The laminate according to any one of [1] to

[13] , wherein an adhesive layer and a release sheet are further provided on the side of the substrate layer opposite to the receiving layer.

[0197]

[15] A skin-decorative sheet comprising the laminated sheet described in any one of [1] to

[14] ,

[0198] An image is formed in the aforementioned receiving layer.

[0199]

[16] A skin-decorative sheet comprising the laminated sheet described in any one of [1] to

[14] ,

[0200] No image was formed in the aforementioned receiving layer.

[0201] Example

[0202] The laminates of this disclosure are illustrated in more detail by way of examples, but the laminates of this disclosure are not limited to these examples. In the following description, "parts" means "parts by weight".

[0203] [Example 1]

[0204] A 7 μm thick polyurethane film was prepared as the substrate layer. A coating of 1.0 g / m² was applied to one side of the substrate layer. 2 A masking layer forming liquid 1 with the following composition is applied and dried to form a masking layer 1 with a thickness of 1 μm. It should be noted that the white pigment in the masking layer 1 accounts for 58% by mass, and the hiding power is 21%.

[0205] Next, a coating solution for forming a receiving layer with the following composition is applied to the cover layer 1 and dried to form a receiving layer with a thickness of 1.0 μm. Thus, a laminate with a total thickness of 9.0 μm is obtained.

[0206] (Coating solution 1 for forming the cover layer)

[0207] • 58 parts of titanium dioxide (manufactured by Ishihara Sangyo Co., Ltd., R-780)

[0208] 10.5 parts of (meth)acrylic resin

[0209] (Made by Mitsubishi Chemical Co., Ltd., DIANAAL (registered trademark) BR-87)

[0210] · 31.5 parts of (meth)acrylic resin

[0211] (Made by Mitsubishi Chemical Co., Ltd., DIANAAL (registered trademark) BR-85)

[0212] · Methyl ethyl ketone (MEK) 100 parts

[0213] 100 parts of toluene

[0214] (Applying solution for forming the acceptor layer)

[0215] 100 parts of vinyl chloride-vinyl acetate copolymer (1000A, manufactured by Denki Kagaku Kogyo Co., Ltd.)

[0216] • Epoxy-modified silicone 3.5 parts (X-22-3000T, manufactured by Shin-Etsu Chemical Co., Ltd.)

[0217] • 3.5 parts of methylstyrene-modified organosilicon (X-24-510, manufactured by Shin-Etsu Chemical Co., Ltd.)

[0218] • 2.5 parts of polyether-modified silicone (FZ2101, manufactured by Nippon Unicar Co., Ltd.)

[0219] ·Methyl ethyl ketone (MEK) 200 parts

[0220] 200 parts of toluene

[0221] [Example 2]

[0222] With a coating amount of 2.0 g / m 2 The coating solution 1 for forming the masking layer is applied and dried to form a masking layer 2 with a thickness of 2 μm. Otherwise, the same procedure as in Example 1 is followed to produce a laminate with a total thickness of 10.0 μm. It should be noted that the white pigment ratio of the masking layer 2 is 58% by mass, and the opacity is 35%.

[0223] [Example 3]

[0224] With a coating amount of 3.0 g / m 2 The coating solution 1 for forming the masking layer is applied and dried to form a masking layer 3 with a thickness of 3 μm. Otherwise, the same procedure as in Example 1 is followed to produce a laminate with a total thickness of 11.0 μm. It should be noted that the white pigment ratio of the masking layer 3 is 58% by mass, and the opacity is 42%.

[0225] [Example 4]

[0226] With a coating amount of 4.0 g / m 2 The coating solution 1 for forming the masking layer is applied and dried to form a masking layer 4 with a thickness of 4 μm. Otherwise, the same procedure as in Example 1 is followed to produce a laminate with a total thickness of 12.0 μm. It should be noted that the white pigment ratio of the masking layer 4 is 58% by mass, and the opacity is 52%.

[0227] [Example 5]

[0228] With a coating amount of 0.5 g / m2 An adhesive layer is formed by applying a coating solution with the following composition to one side of a substrate layer and then drying it, with a coating amount of 2.0 g / m². 2 A masking layer forming liquid 2 with the following composition was applied to the adhesive layer and dried to form a masking layer 5 with a thickness of 2 μm. Otherwise, the same procedure as in Example 1 was followed to produce a laminate with a total thickness of 10.0 μm. It should be noted that the white pigment in the masking layer 5 has a proportion of 85% by mass and a coverage rate of 68%.

[0229] (Coating solution for forming adhesive layer)

[0230] • 40 parts of (meth)acrylic resin (manufactured by JSR Corporation, AE866)

[0231] • 34 parts polyester (manufactured by Toyobo Co., Ltd., VYLONAL (registered trademark) MD-1200)

[0232] Isopropyl alcohol (IPA) 100 parts

[0233] 100 parts water

[0234] (Coating liquid 2 for forming the cover layer)

[0235] • 85 parts of titanium dioxide (manufactured by Ishihara Sangyo Co., Ltd., R-780)

[0236] 12 parts of (meth)acrylic resin

[0237] (Made by Mitsubishi Chemical Co., Ltd., DIANAAL (registered trademark) BR-87)

[0238] · 2 parts (meth)acrylic resin

[0239] (Made by Mitsubishi Chemical Co., Ltd., DIANAAL (registered trademark) BR-85)

[0240] · 1 part polyester

[0241] (Made by Toyobo Co., Ltd., Vylon (registered trademark) 200, Tg: 67℃, Mn: 17,000)

[0242] ·Methyl ethyl ketone (MEK) 33 parts

[0243] ·Toluene 33 parts

[0244] [Example 6]

[0245] With a coating amount of 0.6 g / m 2The coating solution 1 for forming the masking layer is applied and dried to form a masking layer 6 with a thickness of 0.6 μm. Otherwise, the same procedure as in Example 1 is followed to produce a laminate with a total thickness of 8.6 μm. It should be noted that the white pigment ratio of the masking layer 6 is 58% by mass, and the opacity is 10%.

[0246] [Example 7]

[0247] With a coating amount of 2.0 g / m 2 A masking layer 5 with a thickness of 2 μm is formed by coating a masking liquid 2 onto the substrate of the transfer film and drying it, with a coating amount of 0.5 g / m. 2 An adhesive layer is formed by applying an adhesive layer coating liquid onto the cover layer 5 and then drying it.

[0248] Next, the adhesive layer and the masking layer 5 described above are transferred onto the masking layer 1 of Example 1 to form a masking layer 7 (masking layer 1 + masking layer 5) with a thickness of 3 μm. Otherwise, the same procedure as in Example 1 is followed to produce a laminate with a total thickness of 11.0 μm. It should be noted that the white pigment ratio of the masking layer 7 is 76% by mass, and the opacity is 80%.

[0249] [Example 8]

[0250] With a coating amount of 2.0 g / m 2 A masking layer forming liquid 3 with the following composition is applied to one side of the substrate layer and dried to form a masking layer 8 with a thickness of 2 μm. Otherwise, the same procedure as in Example 1 is followed to produce a laminate with a total thickness of 10.0 μm. It should be noted that the white pigment in the masking layer 8 has a proportion of 30% by mass and a hiding power of 13%.

[0251] (Coating liquid 3 for forming the cover layer)

[0252] • 30 parts titanium dioxide (manufactured by Ishihara Sangyo Co., Ltd., R-780)

[0253] 17.5 parts of (meth)acrylic resin

[0254] (Made by Mitsubishi Chemical Co., Ltd., DIANAAL (registered trademark) BR-87)

[0255] 52.5 parts of (meth)acrylic resin

[0256] (Made by Mitsubishi Chemical Co., Ltd., DIANAAL (registered trademark) BR-85)

[0257] · Methyl ethyl ketone (MEK) 100 parts

[0258] 100 parts of toluene

[0259] [Example 9]

[0260] The thickness of the substrate layer was changed to 10 μm, and otherwise the same procedure was followed as in Example 1 to fabricate a laminate with a total thickness of 12.0 μm. It should be noted that the opacity of the cover layer (cover layer 1) was 21%.

[0261] [Example 10]

[0262] The thickness of the substrate layer was changed to 5 μm, and otherwise the same procedure was followed as in Example 1 to fabricate a laminate with a total thickness of 7.0 μm. It should be noted that the opacity of the cover layer (cover layer 1) was 21%.

[0263] [Example 11]

[0264] The thickness of the substrate layer was changed to 10 μm, and otherwise the same procedure was followed as in Example 3 to fabricate a laminate with a total thickness of 14.0 μm. It should be noted that the opacity of the cover layer (cover layer 3) was 43%.

[0265] [Example 12]

[0266] The thickness of the substrate layer was changed to 5 μm, and otherwise the same procedure was followed as in Example 5 to fabricate a laminate with a total thickness of 8.0 μm. It should be noted that the opacity of the masking layer (masking layer 5) was 68%.

[0267] [Example 13]

[0268] The thickness of the substrate layer was changed to 3 μm, and otherwise the same procedure was followed as in Example 1 to fabricate a laminate with a total thickness of 5.0 μm. It should be noted that the opacity of the cover layer (cover layer 1) was 21%.

[0269] [Comparative Example 1]

[0270] The thickness of the substrate layer was changed to 10 μm, and otherwise the same procedure was followed as in Example 4 to fabricate a laminate with a total thickness of 15.0 μm. It should be noted that the opacity of the cover layer (cover layer 4) was 52%.

[0271] [Comparative Example 2]

[0272] The thickness of the substrate layer was changed to 25 μm, and otherwise the same procedure was followed as in Example 1 to fabricate a laminate with a total thickness of 27.0 μm. It should be noted that the opacity of the cover layer (cover layer 1) was 21%.

[0273] [Comparative Example 3]

[0274] The thickness of the substrate layer was changed to 5 μm, and no cover layer was provided. Otherwise, the same procedure as in Example 1 was followed to produce a laminate with a total thickness of 6.0 μm.

[0275] [Comparative Example 4]

[0276] With a coating amount of 8.0 g / m 2 The coating solution 1 for forming the masking layer is applied and dried to form a masking layer 9 with a thickness of 8 μm. Otherwise, the same procedure as in Example 1 is followed to produce a laminate with a total thickness of 16.0 μm. It should be noted that the white pigment ratio of the masking layer 9 is 58% by mass, and the opacity is 90%.

[0277] [Comparative Example 5]

[0278] With a coating amount of 2.0 g / m 2 A masking layer forming liquid 4 with the following composition is applied to one side of the substrate layer and dried to form a masking layer 10 with a thickness of 2 μm. Otherwise, the same procedure as in Example 1 is followed to produce a laminate with a total thickness of 10.0 μm. It should be noted that the white pigment in the masking layer 10 has a proportion of 90% by mass and a hiding power of 72%.

[0279] (Coating liquid for forming the cover layer 4)

[0280] • 90 parts of titanium dioxide (manufactured by Ishihara Sangyo Co., Ltd., R-780)

[0281] 7.0 parts of (meth)acrylic resin

[0282] (Made by Mitsubishi Chemical Co., Ltd., DIANAAL (registered trademark) BR-87)

[0283] · 3.0 parts of (meth)acrylic resin

[0284] (Made by Mitsubishi Chemical Co., Ltd., DIANAAL (registered trademark) BR-85)

[0285] · Methyl ethyl ketone (MEK) 100 parts

[0286] 100 parts of toluene

[0287] [Measurement Method]

[0288] <Coverage rate of the cover layer>

[0289] Calculate the hiding power (YB / YW) of the opacifying layer obtained by the test method according to JIS K5600-4-1 (Opacity: for light-colored paints).

[0290] Specifically, in the laminates of Examples 1-13 and Comparative Examples 1-5, an acrylic adhesive (SK Dyne MD-1, manufactured by Soken Chemical Co., Ltd.) was used to form an adhesive layer with a thickness of 10 μm on the side of the substrate layer opposite to the receiving layer. This "laminate consisting of an adhesive layer, a substrate layer, a cover layer, and a receiving layer" was attached to opacity test paper (AS ONE1-3783-01), and the tristimulus values ​​YB (Y value of the film adhered to the black portion) and YW (Y value of the film adhered to the white portion) were measured and calculated.

[0291] <Tensile test force at 5% tension of laminated sheets>

[0292] Calculate the tensile test force at 5% stretch of a laminate with a width of 10 mm, obtained by the test method according to JIS K7127:1999 (plastics - test methods for tensile properties -).

[0293] It should be noted that the tensile test force was measured using a small benchtop testing machine (EZ Test series, manufactured by Shimadzu Corporation) on a laminate consisting of three layers: a substrate layer, a cover layer, and a receiving layer.

[0294] • Test piece: Type 2, width 10mm

[0295] Initial chuck spacing: 40mm

[0296] • Test speed: 10 mm / min

[0297] [Evaluation Method]

[0298] <Wrinkles during application>

[0299] In the laminates of Examples 1-13 and Comparative Examples 1-5, laminates (laminates consisting of an adhesive layer, a substrate layer, a cover layer, and a receiver layer) with an adhesive layer of 10 μm thickness formed on the side of the substrate layer opposite to the receiver layer using an acrylic adhesive (manufactured by Soken Chemical Co., Ltd., SK Dyne MD-1) were evaluated as follows.

[0300] The level of wrinkles observed when the laminated patches were applied to the skin (application areas: face, cheeks) was assessed visually by five evaluators according to the following evaluation criteria. It should be noted that evaluators were selected based on confirmation of consistency in evaluations using the baseline sample. An average score of 2.5 or higher from the five evaluators was designated A, 1.1 or higher but less than 2.5 was designated B, and less than 1.1 was designated C.

[0301] (Evaluator)

[0302] Reviewer 1: Japanese woman in her 30s

[0303] Reviewer 2: Japanese woman in her 40s

[0304] Reviewer 3: Japanese male in his 20s

[0305] Reviewer 4: Japanese male in his 30s

[0306] Reviewer 5: Japanese male in his 40s

[0307] (Evaluation Criteria)

[0308] 3: Wrinkles are not obvious, good condition

[0309] 2: Some wrinkles can be identified.

[0310] 1: Obvious wrinkles

[0311] <Spot Concealer>

[0312] In the laminates of Examples 1-13 and Comparative Examples 1-5, the coverage of the cover layer constituting the laminate was evaluated according to the following evaluation criteria.

[0313] (Evaluation Criteria)

[0314] A: Coverage rate of over 40%

[0315] B: Coverage rate is 15% or higher but less than 40%.

[0316] C: Coverage rate is 1% or higher but less than 15%

[0317] D: Coverage rate less than 1%

[0318] <Imprint Nature>

[0319] For the laminated sheets of Examples 1-13 and Comparative Examples 1-5, a grayscale image was printed using a heat transfer printer (DS620, manufactured by Dai Nippon Printing Co., Ltd.) with a heat transfer belt to form a fine line of 3 dots (3 pixels). After a protective layer was transferred onto the image, the printability was evaluated according to the following evaluation criteria.

[0320] (Printing conditions)

[0321] • Thermal head: KGT-217-12MPL20 (Made by Kyocera Corporation)

[0322] • Average resistance of heating element: 31915Ω

[0323] • Print density in the main scanning direction: 300 dpi

[0324] • Print density in the secondary scanning direction: 300 dpi

[0325] • Apply power: 0.12W / dot

[0326] • Row cycle: 5msec.

[0327] • Printing start temperature: 40℃

[0328] (Evaluation Criteria)

[0329] A: The three colors, yellow, magenta, and cyan, overlap without shifting, thus reproducing gray.

[0330] B: The three colors, yellow, magenta, and cyan, do not overlap and are offset, making it impossible to reproduce gray.

[0331] The evaluation results are shown in Table 1.

[0332]

[0333] Explanation of reference numerals in the attached figures

[0334] 1: Laminated film

[0335] 10: Substrate layer

[0336] 20: Covering layer

[0337] 30: Reception Layer

[0338] 40: Adhesive layer

[0339] 50: Peeling tablet

Claims

1. A laminated sheet comprising at least a receiving layer, a cover layer, and a substrate layer in sequence, and The tensile test force at 5% tension of the laminate with a width of 10 mm, obtained according to the test method of JIS K7127:1999, is ≥0.10N and ≤0.62N.

2. The laminated sheet according to claim 1, wherein, The thickness of the covering layer is greater than 0.8 μm and less than 6 μm.

3. The laminated sheet according to claim 1, wherein, The covering layer contains white pigment. The white pigment in the covering layer contains 40% by mass or more and 85% by mass or less.

4. The laminated sheet according to claim 3, wherein, The white pigment is titanium dioxide.

5. The laminated sheet according to claim 1, wherein, The coverage of the covering layer, as obtained by the test method according to JIS K5600-4-1, is 15% or more in the ratio YB / YW.

6. The laminated sheet according to claim 1, wherein, The coverage of the covering layer, as determined by the test method according to JIS K5600-4-1, is 40% or higher (YB / YW).

7. The laminated sheet according to claim 1, wherein, The coverage rate YB / YW of the covering layer, obtained according to the test method of JIS K5600-4-1, is less than 85%.

8. The laminated sheet according to claim 1, wherein, The thickness of the substrate layer is more than 3 μm and less than 10 μm.

9. The laminated sheet according to claim 1, wherein, The thickness of the substrate layer is greater than 3 μm and less than 7 μm.

10. The laminated sheet according to claim 1, wherein, The thickness of the substrate layer is more than 3 μm and less than 5 μm.

11. The laminated sheet according to claim 1, wherein, The substrate layer is a polyurethane film.

12. The laminated sheet according to claim 1, wherein, The tensile test force is above 0.10N and below 0.41N.

13. The laminated sheet according to claim 1, wherein, The overall thickness of the laminate consisting of the receiving layer, the covering layer, and the substrate layer is 4.0 μm or more and 15.0 μm or less.

14. The laminated sheet according to claim 1, wherein, An adhesive layer and a release tab are also provided on the side of the substrate layer opposite to the receiving layer.

15. A skin-decorative sheet comprising the laminated sheet according to any one of claims 1 to 14, An image is formed on the receiving layer.

16. A skin-decorative sheet comprising the laminated sheet according to any one of claims 1 to 14, No image was formed in the receiving layer.

Images