Laminate sheet for cosmetic, cosmetic set, carrier film, and method for applying adhesive film

Abstract

The purpose of the present invention is to provide a laminate sheet for a cosmetic that makes it possible to peel a support body without causing wrinkles in an adhesive film and apply the adhesive film to an adherend without causing damage to the adhesive film. This laminate sheet for a cosmetic has: a laminate including a water-absorbent support body and an adhesive film laminated on the support body; and an aqueous liquid-impermeable carrier film laminated on the adhesive film of the laminate. The support body has a thickness of 7-50 μm. The maximum height Rz of the surface of the adhesive film laminated with the carrier film as determined in accordance with JIS B0601:2001 is 10-250 nm, and the maximum height Rz of the region of the carrier film laminated with the adhesive film as determined in accordance with JIS B0601:2001 is 300 nm to 5 μm inclusive.

Description

Cosmetic laminated sheet, cosmetic set, carrier film, and method for attaching a sticking film

[0001] The present disclosure relates to a cosmetic laminated sheet, a cosmetic set, a carrier film, and a method for attaching a sticking film.

[0002] Conventionally, various sticking films have been proposed to be attached to the human body for the purpose of making the discolored area of the skin less noticeable, decoration (body paint), fixing of transdermal absorption drugs, etc. The sticking film is usually distributed together with a support, for example, a backing sheet, and it is common to peel off the backing sheet and attach only the desired sticking film to the skin. In order to reduce the discomfort and wearing feeling when attached to the skin, the thickness of the sticking film is preferably thin. However, if the sticking film is thin, it is difficult to handle with fingers, and it is likely to get wrinkled or creased. Furthermore, it is difficult to peel off the backing sheet. Also, even if the backing sheet could be peeled off, it was very difficult to attach the sticking film to the skin without wrinkles.

[0003] In response to such problems, a laminated sheet in which a support, an adhesive layer, a sticking film (sticking body layer), and a carrier film are laminated in this order has been proposed (for example, Patent Document 1, etc.). In this laminated sheet, while the sticking film etc. is supported by the carrier film, the support is peeled off. Subsequently, the carrier film, the adhesive layer, and the sticking film are lifted together, and the adhesive layer is pressed against the skin. Then, by peeling off the carrier film from the sticking film, only the adhesive layer and the sticking film are attached to the skin. In the laminated sheet having such a structure, since the sticking film after peeling off the support is held by the carrier film, there is an advantage that it is easier to attach the sticking film to the skin than before.

[0004] Japanese Unexamined Patent Application Publication No. 2016 - 140717

[0005] However, in the laminated sheet with the above structure, the support is peeled off from the adhesive film (adhesive layer in the technology of Patent Document 1), and the carrier film is further peeled off from the adhesive film. During these two peeling processes, the adhesive film tends to lift up and wrinkle easily during one of the steps. For example, if the adhesive strength between the adhesive film and the carrier film is increased to prevent the adhesive film from lifting off the carrier film when the support is peeled off, wrinkles tend to form on the adhesive film when the carrier film is peeled off. On the other hand, if the adhesion between the adhesive film and the carrier film is low, as in Patent Document 1, wrinkles tend to form on the adhesive film when the support is peeled off. Also, if the adhesion between the carrier film and the adhesive film is low, the position of the adhesive film on the carrier film shifts, making them prone to rubbing against each other and damaging the surface of the adhesive film.

[0006] This disclosure has been made in view of these issues. Specifically, this disclosure aims to provide a cosmetic laminate sheet that allows the support to be peeled off without causing wrinkles in the adhesive film, and further allows the adhesive film to be applied to a substrate without damaging the adhesive film. This disclosure also aims to provide a cosmetic set, a carrier film, and a method for applying the adhesive film.

[0007] This disclosure provides a cosmetic laminate sheet comprising a water-absorbing support, a laminate including an adhesive film laminated on the support, and a carrier film laminated on the adhesive film of the laminate, wherein the thickness of the support is 7 μm or more and 50 μm or less, the maximum height Rz of the surface of the adhesive film laminated with the carrier film, as determined in accordance with JIS B0601:2001, is 250 nm or less, the thickness of the carrier film is 10 μm or more and 150 μm or less, and the maximum height Rz of the region of the carrier film laminated with the adhesive film, as determined in accordance with JIS B0601:2001, is 300 nm or more and 5 μm or less.

[0008] The decorative laminate sheet of this disclosure allows for the removal of the support from the adhesive film without causing wrinkles in the adhesive film. Furthermore, the decorative laminate sheet allows for the adhesive film to be attached to an object without damaging the adhesive film.

[0009] Figure 1 is a schematic cross-sectional view of a cosmetic laminated sheet according to one embodiment of the present disclosure. Figures 2A to 2D are diagrams illustrating a method for applying an adhesive film using the cosmetic set of the present disclosure.

[0010] 1. Cosmetic Laminate Sheet Figure 1 shows a schematic cross-sectional view of the cosmetic laminate sheet (hereinafter also simply referred to as "laminated sheet") of this disclosure. The cosmetic laminate sheet 100 of this disclosure comprises a laminate 10 including a support 12 and an adhesive film 14, and a carrier film 20 laminated on the adhesive film 14 that is impermeable to aqueous liquids. The cosmetic laminate sheet 100 may have other configurations as long as they do not impair the purpose and effects of this disclosure. For example, a colored layer (not shown) may be provided between the adhesive film 14 and the carrier film 20.

[0011] As will be explained in more detail later, in the decorative laminated sheet 100, when peeling the support 12 from the adhesive film 14, an aqueous liquid is applied to the support 12 side, and the support 12 is slid to peel it off. The configuration of the decorative laminated sheet 100 will be explained in detail below.

[0012] (Carrier Film) The carrier film 20 is a film that is poorly permeable to aqueous liquids. The carrier film 20 is a film that supports the peeling of the support 12 from the adhesive film 14 and the application of the adhesive film 14 to the object to be applied. In this specification, the carrier film 20 is said to be poorly permeable to aqueous liquids when the carrier film 20 is placed on a horizontal surface at room temperature and atmospheric pressure and water is applied to one surface of the carrier film 20 by a unit area (cm²). ２This means that when 1 ml is applied to one surface and left to stand for 1 minute, water does not seep through or permeate to the other surface of the carrier film 20. In other words, the carrier film 20 contains a material that is difficult for water to permeate in at least a portion of it, and has a structure that is difficult for water to permeate.

[0013] The materials constituting the carrier film 20 are preferably those that do not affect the user (especially the skin). Examples of materials constituting the carrier film 20 include polyesters represented by polyethylene terephthalate, polyglycolic acid, polylactic acid, polycaprolactone, polyethylene succinate, polyethylene terephthalate, or copolymers thereof; polyethers represented by polyethylene glycol and polypropylene glycol; polyamides represented by nylon, polyglutamic acid, polyaspartic acid, or salts thereof; polysaccharides represented by pullulan, cellulose, starch, chitin, chitosan, alginic acid, hyaluronic acid, corn starch, or salts thereof; silicones represented by acrylic silicone and trimethylsiloxysilicate; acrylic acids represented by alkyl acrylate, silicone acrylate, acrylamide, or copolymers thereof; polyvinyl alcohol; polyurethane; polycarbonate; polyacid anhydride; polyethylene; polypropylene, etc. These can be used individually or in combination of two or more. Among these, polyethylene terephthalate, polypropylene, polycarbonate, and polyethylene are preferred from the viewpoint of versatility and processability (ease of forming uneven surfaces).

[0014] The carrier film 20 may consist of only one layer or two or more layers. Furthermore, the carrier film 20 may be a flat film (without through holes), a porous film with multiple through holes, a nanofiber film, or a combination thereof. Among these, a flat film or a porous film with multiple through holes having very small opening diameters is preferred from the viewpoint of easily achieving poor liquid permeability.

[0015] For example, if the carrier film 20 is a porous film, the shape of the openings of the through-holes and the arrangement of the through-holes are not particularly limited. However, the average opening diameter D of each through-hole on the surface of the carrier film 20 laminated with the adhesive film 14 is preferably 5000 μm or less, and more preferably 1 μm or more and 3000 μm or less. In this specification, the surface of the carrier film 20 laminated with the adhesive film 14 refers to the surface of the carrier film 20 facing the adhesive film 14. In this case, the carrier film 20 and the adhesive film 14 may or may not be in direct contact. If the average opening diameter D of the surface of the carrier film 20 laminated with the adhesive film 14 is 3000 μm or less, water will have difficulty permeating through the through-holes. Furthermore, if the average opening diameter D is 2000 μm or less, even if the carrier film 20 and the adhesive film 14 or the colored layer (not shown) laminated on the adhesive film 14 come into contact, the edges of the openings of the through holes are less likely to catch on the adhesive film 14 or the colored layer, making it less likely to damage the adhesive film 14 or the colored layer. The average opening diameter D is the average value obtained by measuring the diameter of the openings of the multiple through holes formed in the carrier film 20 using a ruler or microscope observation image. In addition, the porosity A of the porous film (especially the surface laminated with the adhesive film 14) is preferably less than 35%, and more preferably 20% or less. If the porosity A is less than 35%, not only is it difficult for water to permeate the carrier film 20, but the possibility of damage to the adhesive film 14 or the colored layer due to the through holes in the carrier film 20 can be further reduced. The perforation ratio A (%) is the ratio obtained by dividing the "total area of ​​the perforations of the through holes" by the "total area of ​​the carrier film 20" when the carrier film 20 is viewed from above. Note that if the through holes have circular perforations of the same area and are arranged in a grid pattern with the same pitch P (distance between the centers of adjacent through holes), the formula (perforation ratio = 78.5 × D) is used. ２ / P ２It can also be calculated using the method described above. However, if the arrangement of the through holes or the shape of the openings of the through holes is not circular, etc., it can be calculated appropriately according to the conventional method. The method of forming the porous film described above is not particularly limited. For example, it can be a film in which through holes are formed on a flat film by laser processing or punching.

[0016] Here, the maximum height Rz of the region of the carrier film 20 laminated with the adhesive film 14, as determined in accordance with JIS B0601:2001, is 300 nm or more and 5 μm or less. Preferably, the maximum height Rz is 300 nm or more and 1 μm or less, and more preferably 300 nm or more and 500 nm or less. When the maximum height Rz of the region of the carrier film 20 laminated with the adhesive film 14 is 300 nm or more and 5 μm or less, when the aqueous liquid is applied from the support 12 side, the surface of the carrier film 20 retains the aqueous liquid and forms a film made of the aqueous liquid. Then, the support 12 is lifted by this aqueous liquid film. As a result, it becomes possible to peel off the support 12 by sliding as described above. In this specification, the region of the carrier film 20 laminated with the adhesive film 14 refers to the region in which the carrier film 20 is laminated with the adhesive film 14 directly or via a colored layer or the like. Furthermore, when determining the maximum height Rz of the region of the carrier film 20 laminated with the adhesive film 14, the measurement shall be performed using a method capable of measuring roughness in nanometer units, and shall be performed using the method described in JIS B0601:2001 as described above. In addition, if the carrier film 20 has through holes, the maximum height Rz shall be measured by selecting a region that does not have through holes.

[0017] The carrier film 20 may have the maximum height Rz only in the region laminated with the adhesive film 14. That is, the region of the carrier film 20 that is not laminated with the adhesive film 14 may not satisfy the maximum height Rz. On the other hand, the entire surface of the carrier film laminated with the adhesive film 14 may have the maximum height Rz. Furthermore, both sides of the carrier film 20 may have the maximum height Rz.

[0018] The method for adjusting the maximum height Rz of the region laminated with the attached film 14 on the carrier film 20 to the above range is not particularly limited. For example, a chemical (e.g., an alkaline solvent or a release mat coating agent with dispersed fine particles) may be applied to the flat film or porous film to form the desired surface, or the desired surface may be formed by sandblasting or pressing a mold. Furthermore, a layer having the desired surface may be formed on the flat film or porous film by a printing method such as gravure coating.

[0019] Furthermore, the contact angle with water of the region of the carrier film 20 laminated with the adhesive film 14 is preferably 90° or less, more preferably 10° to 50°, and even more preferably 10° to 40°. When the contact angle with water of the region of the carrier film 20 laminated with the adhesive film 14 is 90° or less, the aqueous liquid spreads more easily across the surface of the carrier film 20 when applied. This makes it even easier to peel off the support 12. The contact angle with water of the carrier film 20 can be determined by conventional methods such as the θ / 2 method.

[0020] The carrier film 20 may have a contact angle with water only in the region laminated with the adhesive film 14. That is, in the region of the carrier film 20 that is not laminated with the adhesive film 14, the contact angle with water may exceed 90°. On the other hand, the contact angle with water of the entire surface of the carrier film laminated with the adhesive film 14 may be 90° or less. Furthermore, the contact angles with water of both sides of the carrier film 20 may be 90° or less.

[0021] The method for adjusting the contact angle of the carrier film 20 with water to 90° or less is not particularly limited. For example, it may be adjusted by the type of material that makes up the carrier film 20. Furthermore, it is also possible to adjust it by applying a hydrophilizing agent to the surface of a flat film or a porous film, or by performing, for example, plasma irradiation or ozone treatment.

[0022] The thickness of the carrier film 20 is 10 μm or more and 150 μm or less, preferably 10 μm or more and 100 μm or less, and more preferably 10 μm or more and 80 μm or less. When the thickness of the carrier film 20 is 10 μm or more, the carrier film 20 makes it easier to support the adhesive film 14 and the support 12. Also, when the thickness of the carrier film 20 is 10 μm or more, the carrier film 20 becomes stiffer, which further improves the peelability of the support 12 and the peelability of the adhesive film 14. On the other hand, when the thickness of the carrier film 20 is 150 μm or less, the carrier film 20 makes it easier to follow the shape of the object to be attached when the adhesive film 14 is attached to the object, making it difficult to create a gap between the adhesive film 14 and the object to be attached. As a result, it becomes easier to attach the adhesive film 14 without wrinkles. The thickness of the carrier film 20 is a value measured with a micrometer.

[0023] Furthermore, the Asker C hardness of the carrier film 20 at 25°C is preferably between 4 and 20 degrees. The Asker C hardness is a value measured using an Asker rubber hardness tester type C in accordance with JIS K7312 or JIS S 6050. When the Asker C hardness of the carrier film 20 is within the above range, the carrier film 20 becomes more likely to support the adhesive film 14 when the adhesive film 14 is applied, and the carrier film 20 becomes easier to peel off from the adhesive film 14.

[0024] Furthermore, the light transmittance of the carrier film 20 is selected as appropriate, but it is preferable that the transmittance of light with a wavelength of 550 nm is 30% or more. When the carrier film 20 has a transmittance of 30% or more for light with a wavelength of 550 nm, it becomes easier to visually confirm the position of the adhesive film 14 from the carrier film 20 side when the adhesive film 14 is attached to the object to be attached. Therefore, it becomes easier to attach the adhesive film 14 to the desired position more accurately. The transmittance can be the value measured with a transmittance meter (for example, a UV-3600Plus ultraviolet-visible-near-infrared spectrophotometer manufactured by Shimadzu Corporation).

[0025] Furthermore, the haze of the carrier film 20 is selected as appropriate, but is preferably less than 50%. When the haze of the carrier film 20 is less than 50%, it becomes easier to visually confirm the position of the adhesive film 14 from the carrier film 20 side when the adhesive film 14 is applied to the object to be applied. Therefore, it becomes easier to apply the adhesive film 14 to the desired position more accurately. The haze can be a value measured with a haze meter in accordance with JIS K7105 or JIS K7136.

[0026] The size and shape of the carrier film 20 are appropriately selected according to the desired size of the adhesive film 14, and should be a shape that can cover the entire adhesive film 14. The area of ​​the carrier film 20 when viewed from above may be approximately the same as the area of ​​the adhesive film 14 when viewed from above, but it is preferable that it is the same as or larger than the area of ​​the adhesive film 14 when viewed from above. More specifically, it is preferable that the area of ​​the carrier film 20 when viewed from above is 1 to 20 times the area of ​​the adhesive film 14 when viewed from above, and more preferably 1 to 10 times. If the area of ​​the carrier film 20 is 1 or more times the area of ​​the adhesive film 14, when an aqueous liquid is applied to peel off the support 12, water will not easily seep to the back of the carrier film 20. In addition, the carrier film 20 will be able to support the adhesive film 14 more easily. On the other hand, the area of ​​the carrier film 20 is not particularly limited as long as it is the same as or larger than the area of ​​the adhesive film 14, but in particular, if it is 10 times or less the area of ​​the adhesive film 14, the handling when applying the adhesive film 14 will be improved. Also, the planar shape of the carrier film 20 may be similar to the planar shape of the adhesive film 14, or it may be a completely different shape.

[0027] (Laminate) The laminate 10 may have a support 12 and an adhesive film 14 laminated with the support 12. The laminate 10 may have other configurations as long as they do not impair the purpose and effects of the present disclosure. As described above, a colored layer (not shown) may be laminated on the adhesive film 14.

[0028] - The adhesive film, as well as the colored layer and light-scattering layer adhesive film 14, may be applied to the body to be adhered to (skin) by themselves. Alternatively, a sheet with the colored layer laminated on the adhesive film 14 may be applied to the body to be adhered to (skin). For example, the sheet with the adhesive film 14 and the colored layer laminated on it may be a sheet made to suit the discolored areas of a specific individual's skin and intended for use by a specific person (a sheet made on demand). Alternatively, the sheet may be made to suit the average skin color of an unspecified number of people and intended for use by an unspecified number of people. Furthermore, the sheet may be used not only for skin coloring, but also to make discolored areas less noticeable or to decorate discolored areas by being applied over them. In addition, it may be a sheet used to hold beauty ingredients such as moisturizing ingredients or whitening ingredients, for purposes other than makeup (changing skin color).

[0029] The adhesive film 14 has a maximum height Rz of the surface laminated with the carrier film 20, which can be determined in accordance with JIS B0601:2001. This height Rz should be 250 nm or less, preferably between 10 nm and 250 nm, more preferably between 10 nm and 200 nm, and even more preferably between 10 nm and 100 nm. The maximum height Rz of the adhesive film 14 is preferably smaller than the surface height Rz of the carrier film 20. When the relative sizes of the maximum heights Rz of the adhesive film 14 and the carrier film 20 satisfy this condition, when an aqueous liquid is applied, the aqueous liquid accumulated on the surface of the carrier film 20 can easily penetrate into the adhesive film 14, making it easier for the support 12 to float. As a result, the peelability of the support 12 is further improved. The method for determining the maximum height Rz of the adhesive film 14 is the same as the method for determining the maximum height Rz of the carrier film 20.

[0030] The adhesive film 14 may have the maximum height Rz on only one side, i.e., only the side laminated with the carrier film 20 (the side facing the carrier film 20). Alternatively, both sides of the adhesive film 14 may have the maximum height Rz. The method for adjusting the maximum height Rz of the adhesive film 14 to the above range is not particularly limited and can be adjusted, for example, by creating irregularities in the underlying substrate (base film, etc.) during the film formation of the adhesive film 14.

[0031] The thickness of the adhesive film 14 is preferably 10 nm or more and 5 μm or less, and more preferably 10 nm or more and 1 μm or less. If the thickness of the adhesive film 14 is 10 nm or more, the adhesive film 14 is less likely to wrinkle when it is bonded to another surface. Furthermore, if the thickness of the adhesive film 14 is 5 μm or less, it not only conforms more easily to the shape of the object to which it is bonded, but also reduces the likelihood of the user experiencing discomfort after the adhesive film 14 has been applied. The thickness of the adhesive film 14 can be measured by a method capable of measuring thickness in nanometer units. Examples of such methods include a contact-type scanning method using a stylus, a non-contact optical interferometry method, an image synthesis method using focus shifting, and a confocal method.

[0032] The planar shape of the adhesive film 14 is not particularly limited and can be appropriately selected according to the shape of the area to which the adhesive film 14 is applied and its intended use. The adhesive film 14 may also have notches formed on its outer periphery and / or within its surface to conform to the shape of the area to which it is applied.

[0033] The adhesive film 14 may contain at least a biocompatible thin film, and the adhesive film 14 may consist of a single thin film or two or more layers, including the thin film and other layers.

[0034] The thin film included in the above-mentioned adhesive film 14 is preferably a sheet-like material that does not cause discomfort when applied to human skin and is biocompatible. The thin film is usually colorless and transparent, or semi-transparent. Furthermore, it is preferable that it is permeable to liquid (water).

[0035] The thin film described above may be a sheet formed by a spin coating method, a roll-to-roll method, an LB method (Langmuir-Bludget method), or a fiber sheet in which fibers generated by electrospinning or the like are folded.

[0036] Examples of thin film materials include polyesters represented by polyglycolic acid, polylactic acid, polycaprolactone, polyethylene succinate, polyethylene terephthalate, or copolymers thereof; polyethers represented by polyethylene glycol and polypropylene glycol; polyamides represented by nylon, polyglutamic acid, polyaspartic acid, or salts thereof; polysaccharides represented by pullulan, cellulose, starch, chitin, chitosan, alginic acid, hyaluronic acid, corn starch, or salts thereof; silicones represented by acrylic silicone and trimethylsiloxysilicate; acrylic acids represented by alkyl acrylate, silicone acrylate, acrylamide, or copolymers thereof; polyvinyl alcohol; polyurethane; polycarbonate; polyacid anhydride; polyethylene; polypropylene; porous layer coating sheets, nanofiber sheets, etc. Among these, when the thin film material is polylactic acid, cellulose (e.g., carboxymethylcellulose, hydroxyethylcellulose, etc.), starch, chitin, chitosan, alginic acid, corn starch, or polyurethane, biocompatibility, availability, and handling are improved.

[0037] The thickness of the attached film 14 is preferably 10 nm or more and 5 μm or less, and more preferably 10 nm or more and 1 μm or less.

[0038] As described above, a coloring layer or a light-scattering layer may be laminated on the adhesive film 14. When a coloring layer or a light-scattering layer is laminated on the adhesive film 14, it becomes possible to color the surface to be adhered to (e.g., skin) with any desired color or to make discolored areas of skin appear to their normal color by applying the adhesive film 14 and the sheet containing these layers. The coloring layer is positioned on the carrier film 20 side of the adhesive film 14. As a result, when the object to be adhered is human skin, the biocompatible adhesive film 14 is adhered so that it comes into contact with the skin. Therefore, it is less likely to cause irritation to the user's skin after the adhesive film 14 is applied.

[0039] On the other hand, the colored layer may be a layer containing a colorant and a binder. The colored layer may further contain film-forming agents, dispersants, various additives, etc. The color of the colored layer can usually be a color that matches skin tone, but when the cosmetic laminated sheet 100 is used as a cosmetic product such as blush, eyeshadow, or body painting, it can be any color. The entire colored layer may be the same color, but areas with different colors may be placed in it.

[0040] Furthermore, the colored layer may consist of a single layer or be composed of two or more layers. If the colored layer consists of multiple layers, the type of colorant contained in each layer may be the same or different. Also, the amount of colorant contained in each layer may be the same or different. For example, a configuration in which a colored layer of any color is laminated on top of a skin-colored colored layer is possible.

[0041] Examples of colorants contained in the colored layer include inorganic red pigments such as iron oxide, iron hydroxide, and iron titanate; inorganic brown pigments such as γ-iron oxide; inorganic yellow pigments such as yellow iron oxide and loess; inorganic black pigments such as black iron oxide and carbon black; inorganic purple pigments such as manganese violet and cobalt violet; inorganic green pigments such as chromium hydroxide, chromium oxide, cobalt oxide, and cobalt titanate; inorganic blue pigments such as ultramarine (ferric ferrocyanide), ultramarine blue, lapis lazuli, rock ultramarine, aluminum-cobalt oxide, aluminum-zinc-cobalt oxide, silicon-cobalt oxide, silicon-zinc-cobalt oxide, cobalt pigment, hana ultramarine, cobalt blue, cobalt stannate, cobalt chromium blue, cobalt-aluminum-silicon oxide, and manganese blue; organic blue pigments or blue dyes such as indigo, phthalocyanine, indanthrene blue, and sulfonated products thereof; lake products of various tar-based pigments, lake products of various natural pigments, synthetic resin powders obtained by compounding these powders, and the like.

[0042] On the other hand, the shape of the binder contained in the colored layer is not particularly limited, but it is preferably particulate, and particularly preferably particles made of a (meth)acrylic resin (hereinafter also simply referred to as "acrylic particles"). When the binder is made of acrylic particles, the fixing property of the above-mentioned colorant is likely to be good, and the durability of the colored layer is likely to be good. It is more preferable that the binder is particles made of a (meth)acrylic resin having no skin irritation. Therefore, the above acrylic particles are preferably selected from components listed in the ingredient display name list of cosmetics based on the Pharmaceutical Affairs Law of Japan, components conforming to the EU Cosmetics Regulation (Cosmetics Directive 76 / 768 / EEC), components described in the International Cosmetic Ingredient Dictionary and Handbook (January 1, 2002, 9th edition) by the U.S. Cosmetic, Toiletry & Fragrance Association (CTFA), and the like, and are preferably particles of acrylic resins applied to known cosmetics and the like.

[0043] When the amount of the coloring material is 10 parts by mass, the amount of the binder contained in the coloring layer is preferably 0.5 to 10 parts by mass, and more preferably 1.5 to 5.7 parts by mass. When the amount of the binder relative to the amount of the coloring material is within the above range, the fixing property of the coloring material is enhanced. Further, when the amount of the binder is within the above range, the amount of the coloring material is relatively likely to be sufficient, and the coloring layer can be made into a desired color.

[0044] The thickness of the coloring layer is appropriately selected according to the desired color density and the like, but is more preferably 10 nm or more and 15 μm or less. When the thickness of the coloring layer is within this range, the desired color development can be easily obtained without causing a thick coating feeling. When a plurality of coloring layers are laminated, it is preferable that the total thickness thereof is within this range. Such a coloring layer can be formed, for example, by applying an ink containing a coloring material and a binder onto the adhesive film 14 by an inkjet printing method, a screen printing method, an offset printing, a gravure printing, or the like. The ink may be an oil-based ink or a water-based ink. Among these, from the viewpoints of being easy to perform on-demand printing or being able to perform laminated printing in which a cosmetic ink is applied a plurality of times, the inkjet method is preferable.

[0045] On the other hand, it is preferable that the light scattering layer contains a reflective material and a binder. The light scattering layer may further contain a film-forming agent, a dispersant, various additives, and the like. The light scattering layer may be composed of one layer or may be composed of two or more layers. When the light scattering layer is composed of a plurality of layers, the types of the reflective materials contained in each layer may be the same or different. Also, the amounts of the reflective materials contained in each layer may be the same or different.

[0046] The reflective material contained in the light scattering layer may be particles that scatter or reflect ultraviolet light and visible light (for example, light having a wavelength of 200 to 780 nm), and can be, for example, a pearl agent, a soft focus agent, a lame agent, or the like. The pearl agent, the soft focus agent, and the lame agent are preferably those having no skin irritation.

[0047] The amount of binder contained in the light scattering layer is preferably 0.5 to 10 parts by mass, and more preferably 1.5 to 5.7 parts by mass, when the amount of reflective material is 10 parts by mass. When the amount of binder relative to the amount of reflective material is within this range, the adhesion of the reflective material is enhanced. Furthermore, when the amount of binder is within this range, the amount of reflective material tends to be relatively sufficient, and the light scattering layer can adequately reflect and scatter light.

[0048] The thickness of the light scattering layer is more preferably 10 nm to 120 μm. When the thickness of the light scattering layer is within this range, light reflected from the surface of the skin is more easily reflected by the light scattering layer.

[0049] - Support The support 12 is a member for supporting the adhesive film 14, and the support 12 is water-absorbing. Because the support 12 is water-absorbing, when an aqueous liquid is applied from the support 12 side, the support 12 can permeate the aqueous liquid. Furthermore, because the support 12 is water-absorbing, the support 12 is more likely to lift off the surface of the adhesive film 14. In this specification, it is said that the support 12 is water-absorbing, meaning that the support 12 has a structure (for example, pores) that can hold water inside.

[0050] Examples of the support 12 include sheets made of nonwoven fabric, paper, woven fabric (cloth), knitted fabric, tuft, felted fabric, porous layer coated sheet, nanofiber sheet, superabsorbent polymer, water-soluble polymer, etc. Among these, sheets made of nonwoven fabric, paper, woven fabric (cloth), porous layer coated sheet, nanofiber sheet, superabsorbent polymer, and water-soluble polymer are preferred from the viewpoint that the material does not easily adhere to the adhesive film 14 and has a smooth surface that does not easily damage the adhesive film 14.

[0051] The thickness of the support 12 is 7 μm or more and 50 μm or less, preferably 10 μm or more and 50 μm or less, and more preferably 10 μm or more and 30 μm or less. When the thickness of the support 12 is 10 μm or more, the support 12 gains appropriate stiffness, making it easier to peel the support 12 from the adhesive film 14. On the other hand, when the thickness of the support 12 is 50 μm or less, the thickness of the decorative laminated sheet 100 can be reduced. The thickness of the support 12 is a value measured with a micrometer.

[0052] The plan view shape of the support 12 is not particularly limited as long as it can cover one side of the adhesive film 14. The plan view shape of the support 12 may be the same as the plan view shape of the adhesive film 14, or it may be different from the plan view shape of the adhesive film 14.

[0053] The support 12 may or may not be light-transmitting. In addition, one side may be colored or have letters or patterns applied to it in order to distinguish between the side on which the adhesive film 14 is laminated and the side on which it is not laminated.

[0054] The support 12 may or may not be flexible. In this disclosure, as described later, the support 12 is slid to peel it off the adhesive film 14. Therefore, the support 12 does not need to be flexible.

[0055] (Method for manufacturing a decorative laminate sheet) The method for manufacturing the decorative laminate sheet 100 described above is not particularly limited. For example, the method may include a step of preparing a laminate 10 including the support 12 and adhesive film 14, and optionally a colored layer and a light scattering layer (laminated body preparation step), and a step of laminating the laminate 10 and the carrier film 20 (carrier film lamination step).

[0056] When laminating a colored layer or a light-scattering layer onto the adhesive film 14, in the laminate preparation step, the colored layer or light-scattering layer may be formed on the adhesive film 14 by any method such as inkjet printing or screen printing, and then laminated with the support 12. Alternatively, the adhesive film 14 and the support 12 may be laminated first, and then the colored layer or light-scattering layer may be formed on the adhesive film 14 by any method such as inkjet printing or screen printing to obtain the laminate 10.

[0057] Furthermore, in the carrier film lamination process, as described above, the carrier film 20 is positioned so that the surface having a predetermined maximum height Rz is laminated with the adhesive film 14. For example, if a colored layer or a light scattering layer is laminated on the adhesive film 14, the carrier film 20 is laminated on top of these.

[0058] (Method for applying adhesive film using cosmetic laminated sheet) The method for applying adhesive film using the cosmetic laminated sheet 100 described above can be carried out by, for example, the following procedure. The procedure is shown in Figures 2A to 2D. First, as shown in Figure 2A, the cosmetic laminated sheet 100 is positioned so that the carrier film 20 is in the direction of gravity downward and the laminate is in the direction of gravity upward, and an aqueous liquid (not shown) is applied from the support 12 side (aqueous liquid application step). Next, as shown in Figure 2B, the support 12 is slid in a direction substantially parallel to the interface between the support 12 and the adhesive film 14, and the support 12 is peeled off (support peeling step). Then, while supporting the adhesive film 14 with the carrier film 20 (Figure 2C), the adhesive film 14 is brought into close contact with the object to be applied to (skin) 200, and the carrier film 20 is removed from the object to be applied to 200 (Figure 2D, adhesive film application step). This allows the adhesive film 14 (and any colored or light-scattering layers, if any) to be transferred from the carrier film 20 to the object to be adhered to 200.

[0059] As described above, in conventional laminated sheets (sheets in which a support, adhesive layer, adhesive film, and carrier film are laminated in this order), the adhesive film tends to lift when peeling off the support or the carrier film, and wrinkles easily form on the adhesive film. In addition, when attaching the adhesive film to the substrate, friction between the adhesive film (or the colored layer, etc. laminated on top of it) and the carrier film easily damages the surface of the adhesive film (or the colored layer, etc.).

[0060] In contrast, according to the method for applying an adhesive film using the decorative laminated sheet 100 of this disclosure, the aqueous liquid is applied in the aqueous liquid application step. As a result, the aqueous liquid penetrates the support 12 and the adhesive film 14 and reaches the surface of the carrier film 20. At this time, since the carrier film 20 has poor permeability to aqueous liquid and has a predetermined surface height Rz, the aqueous liquid remains on the surface of the carrier film 20 and forms an aqueous liquid film. This aqueous liquid film then causes the support 12 to lift off. On the other hand, the adhesive film 14 (and the colored layer, etc.) is extremely thin compared to the support 2 and tends to remain relatively on the carrier film due to intermolecular forces. Therefore, in the support peeling step, the support 12 can be easily peeled off the adhesive film 14 simply by sliding the support 12 in a direction substantially parallel to the interface between the support 12 and the adhesive film 14. Also, at this time, since the aqueous liquid is present between the support 12 and the adhesive film 14, pressure is not easily applied to the adhesive film 14, and wrinkles are less likely to occur. Furthermore, as will be shown in the embodiments described later, the thickness of the support 12 being within a predetermined range and the maximum height Rz of the adhesive film 14 are also important from the viewpoint of ease of peeling.

[0061] Furthermore, in this method, an aqueous liquid is present between the adhesive film 14 (and the colored layer, light-scattering layer, etc. laminated on it) and the carrier film 20 after the support 12 has been peeled off. Therefore, friction is less likely to occur between the adhesive film 14 (and the colored layer, light-scattering layer, etc. laminated on it) and the carrier film 20, and the adhesive film 14 and the colored layer etc. laminated on it are less likely to be damaged or wrinkled when the adhesive film 14 is applied. In addition, because an aqueous liquid is present at these interfaces, after the adhesive film 14 has been brought into close contact with the object to be attached 200, the carrier film 20 can be easily peeled off from the surface of the adhesive film 14 and the colored layer etc. Therefore, it is possible to apply the adhesive film 14 to the object to be attached without causing wrinkles in the adhesive film 14 etc. Furthermore, this method has the advantage that the support 12 can be peeled off with a small amount of aqueous liquid, and that the aqueous liquid is less likely to seep to the back side of the carrier film 20 (opposite side from the adhesive film 14) during work, so the user and the surrounding area are less likely to get wet.

[0062] Here, the type of aqueous liquid applied in the above aqueous liquid application process is not particularly limited, as long as it contains water and is unlikely to have an adverse effect on the human body. The aqueous liquid may be water, a cosmetic such as lotion, emulsion, moisturizer, or serum, or any other liquid. Furthermore, the method of applying the aqueous liquid is not particularly limited; it may be sprayed using a spray bottle or dropped using a dropper. The amount of aqueous liquid to be applied is not particularly limited, but from the viewpoint of forming a sufficient aqueous liquid film on the surface of the carrier film 20, the amount should be such that it is applied in a quantity that is less than the unit area (cm²) of the support. ２ The amount per unit is preferably 50 μl or more and 5 ml or less, and more preferably 100 μl or more and 3 ml or less.

[0063] On the other hand, the support peeling step is preferably performed after the aqueous liquid applied in the aqueous liquid coating step has soaked into the support 12 and the adhesive film 14 and a film of the aqueous liquid has been sufficiently formed. In the support peeling step, the support 12 is slid in a predetermined direction. The method of sliding the support 12 is not particularly limited; for example, the support 12 may be slid by fingers, or the support 12 may be slid by a jig or the like. The direction in which the support 12 is slid may be substantially parallel to the interface between the support 12 and the adhesive film 14. In this specification, substantially parallel to the interface between the support 12 and the adhesive film 14 includes a direction that is shifted within ±30° from the direction parallel to the interface between the support 12 and the adhesive film 14.

[0064] In the film application process, the film 14 is supported by the carrier film 20 and brought into close contact with the object to be applied to 200. At this time, it is preferable to apply appropriate pressure from the carrier film 200 side to match the unevenness of the object to be applied to 200. After the film 14 is in close contact with the object to be applied to 200, the carrier film 20 is peeled off from the surface of the object to be applied to 200.

[0065] Furthermore, in the method disclosed herein, as described later, if the carrier film 20 and the laminate 10 are distributed separately, the carrier film 20 that has been peeled off in the film application process can be reused when applying another film.

[0066] 2. Cosmetic Sets and Carrier Films The above describes a cosmetic laminated sheet in which a laminate and a carrier film are laminated. However, the laminate and carrier film described above do not necessarily have to be distributed as laminated. For example, the laminate and carrier film may be distributed individually. Alternatively, they may be distributed as a cosmetic set including the laminate and carrier film. The composition of these laminates and carrier films is the same as that described above.

[0067] When laminates and carrier films are distributed individually or as cosmetic sets, the user performs a step of arranging the laminates and carrier films so that the adhesive film and carrier film are laminated directly or via a colored layer or the like. Subsequently, as described in the adhesive film application method above, the adhesive film can be applied to the object by performing a water coating step, a support peeling step, and an adhesive film application step.

[0068] Furthermore, when the aforementioned laminates are distributed individually or as cosmetic sets, the laminates may be in the form of individual sheets, rolls, or folded strips. If the laminates are in the form of rolls or strips, it is possible to take out and use only the required length. If the laminates are in the form of rolls or strips, cutting lines (notches) may be formed to allow them to be cut to the desired length.

[0069] If one of the carrier films is distributed individually or as part of a cosmetic set, the carrier film may have marks or markings to indicate the surface or area on which the laminate will be placed. Similarly, the support may have marks or markings to indicate the peeling points or areas to be grasped by the fingers. Having such marks or markings on the carrier film and support allows the user to reliably position the area of ​​the carrier film with a predetermined maximum height Rz adjacent to the adhesive film.

[0070] The present disclosure will be described below with reference to examples. The scope of the present disclosure shall not be limited by the examples.

[0071] 1. Preparation of each component The adhesive film, carrier film, and support were prepared according to the following procedure. The thickness of each component was measured using a contact-type stylus scanning method for the adhesive film, and using a micrometer for the carrier film and support, with the average value of three or more measurements taken. The surface roughness (maximum height Rz) of each component was measured using a contact-type stylus scanning method (KLA Tencor P-6) in accordance with JIS B0601:2001, by scanning the surface with a stylus. The porosity of the carrier film was determined by dividing the sum of the (area of ​​the through-hole openings) when the carrier film is viewed from above by the (total area of ​​the carrier film 20).

[0072] (1) Preparation of carrier films PET films 1 to 22 (referred to as PET1, PET2, ..., PET22 in the table) were prepared by surface treatment so that the contact angle with water was 90° or less. At this time, the thickness and surface roughness (maximum height Rz) of each film were adjusted to the values ​​shown in Tables 1 to 8 by adjusting the film formation conditions and changing the surface condition by alkaline treatment. In addition, through holes were made in PET films 8 to 14 and 22 by laser processing to achieve a predetermined porosity. The average opening diameter of each through hole was set to 1 mm or more and 2 mm or less. On the other hand, PET films 1 to 7 and 15 to 21 were flat films. For comparison, a flat film made of a hydrophobic (contact angle with the surface greater than 90°) silicone puff (referred to as silicone puff in Table 1) was also prepared. The planar shape of each carrier film was a rectangle of 55 mm x 55 mm.

[0073] (2) Preparation of the Adhesive Films Flat polylactic acid films A to M (referred to as polylactic acid A, polylactic acid B, ..., polylactic acid M in the table) were prepared as adhesive films. At this time, the thickness and surface roughness (maximum height Rz) of each adhesive film were adjusted to the values ​​shown in Tables 1 to 8 by adjusting the film formation conditions and by changing the surface condition by introducing irregularities to the substrate during film formation. The planar shape of each adhesive film was a rectangle of 30 mm x 30 mm.

[0074] (3) Preparation of supports Supports a to e (referred to as support a, support b, ..., support e in the table) were prepared using cellulose as the base material. For these as well, the thickness during film formation was varied, or different types were selected, and the thickness and surface roughness (maximum height Rz) of each support were adjusted to the values ​​shown in Tables 1 to 8. The planar shape of each support was a rectangle of 30 mm x 30 mm.

[0075] 2. Preparation of decorative laminated sheets The support and adhesive film were selected in the combinations shown in Tables 1 to 8, and the support and adhesive film were laminated. Then, an ink containing a binder and colorant was applied to the adhesive film by inkjet method to form a colored layer. The carrier film shown in Tables 1 to 8 was placed on the colored layer. At this time, the orientation of the carrier film was adjusted so that the surface of the carrier film having a predetermined maximum height Rz was in contact with the colored layer laminated on the adhesive film.

[0076] 3. Evaluation of Cosmetic Laminate Sheets (Carrier Films) The adhesive film was attached to the surface (skin) using the following procedure, and each item was evaluated. The results are shown in Tables 1 to 8. (i) The carrier film was placed on a table with the gravity-down direction and the laminate facing upward direction, and a predetermined amount (1 ml) of water was sprayed onto the support. (ii) The support was slid (or lifted) horizontally with a finger to peel it off from the adhesive film. (iii) The carrier film and adhesive film were lifted, and the adhesive film was pressed firmly against the surface (skin). The carrier film was then removed from the surface.

[0077] (Test Item 1) Spread of Water on the Support In (i) above, after spraying water, the extent to which the water spreads evenly across the entire support was visually confirmed and evaluated according to the following criteria. Only A is considered a pass. A: The water spread evenly across the entire support spontaneously. B: The water spread evenly across the entire support by smoothing it with a finger from above. C: Although the water spreads when smoothed with a finger from above, there was insufficient water and additional water spraying was necessary. D: The water did not spread even when smoothed with a finger from above.

[0078] (Test Item 2) Peelability of the Support In (ii) above, we checked whether the support could be easily peeled off the attached film and evaluated it according to the following criteria. Only A is considered a pass. A: The support could be easily peeled off by sliding it. B: The support could be easily peeled off by lifting it. C: It could be peeled off by sliding or lifting, but some parts were adhered and it could not be peeled off after multiple actions. D: It could not be peeled off.

[0079] (Test Item 3) Spread of Water on the Carrier Film In (i) above, after spraying water, the water was visually checked to see if it spread evenly across the surface of the carrier film and evaluated according to the following criteria. Only A is considered a pass. A: The water spread evenly between the carrier film and the adhesive film spontaneously. B: By tilting and leveling the carrier film, the water spread evenly between the carrier film and the adhesive film. C: By tilting and leveling the carrier film, the water spread evenly between the carrier film and the adhesive film, but there was insufficient water and additional water spraying was required. D: The water did not spread.

[0080] (Test Item 4) Skin Transferability of Adhesive Film The transferability of the adhesive film to the target object (skin) as described in (iii) above was visually confirmed and evaluated according to the following criteria. Only A is considered a pass. A: The adhesive film transferred easily and without wrinkling from the carrier film to the skin. B: The adhesive film transferred easily from the carrier film to the skin, but some wrinkling occurred on the outer edge of the adhesive film. C: A part of the adhesive film adhered to the carrier film, making it difficult to transfer from the carrier film to the skin. D: The adhesive film did not transfer from the carrier film to the skin.

[0081] (Test Item 5) Carrier Film's Adhesion to the Substrate (Skin) In (iii) above, a sensory evaluation was conducted to determine whether uniform pressure was applied to the substrate (skin) from one end to the other of the carrier film, and the following criteria were used for evaluation. Only A is considered a pass. A: By lightly pressing the entire film with the fingers, uniform pressure was applied, and the entire adhesive film adhered uniformly to the substrate (skin). B: The adhesive film in areas not pressed by the fingers sometimes lifted away from the substrate (skin), but the lifted areas were few, and the film immediately adhered when the lifted areas were pressed with the fingers. C: The film did not conform to the unevenness of the substrate (skin), and there were multiple lifted areas. The film adhered when the lifted areas were pressed with the fingers each time. D: The pressure was not applied uniformly, and the film did not adhere even after repeated pressing with the fingers.

[0082] (Test Item 6) Damage to the Colored Layer After attaching the adhesive film and colored layer to the substrate as described in (iii) above, the adhesive film and colored layer on the substrate were visually inspected. It was then confirmed whether the colored layer was affected by contact between the carrier film and the colored layer of the adhesive film. The following criteria were used for evaluation. Only A was considered a pass. A: No damage occurred to the colored layer. B: No damage occurred to the colored layer, but careful handling was required to avoid friction between the colored layer and the carrier film. C: Some chipping occurred in the colored layer due to friction, but it was not noticeable. D: Clear chipping occurred in the colored layer due to friction.

[0083] (Test Item 7) Water Permeability of Carrier Film The carrier film was observed after water was sprayed as described in (i) above and evaluated according to the following criteria. Only if A is satisfied can it be said that the liquid impermeability in this application is satisfied. A: The carrier film did not allow water to pass through. B: The carrier film allowed some water to pass through, but most of the water remained on the carrier film and no additional water spraying was necessary. C: The carrier film allowed some water to pass through, and additional water spraying was necessary. D: The carrier film allowed most of the water to pass through, affecting (ii) above.

[0084] (result)

[0085] As shown in Table 1, when the maximum height Rz of the carrier film was less than 300 nm (when using PET film 1, PET film 21, PET film 22, and silicone puff), it was difficult to peel off the support by sliding, regardless of the type of carrier film or adhesive film. In these embodiments, it is thought that a sufficient layer of water could not be formed on the surface of the carrier film. In particular, when a silicone puff with a high contact angle with water was used as the carrier film, the water did not wet and spread on the carrier film, resulting in particularly poor peelability of the support. Furthermore, it was not possible to attach the adhesive film to the object to be attached.

[0086] On the other hand, when a PET film 22 with an opening ratio of 35% or more was used, the carrier film allowed water to permeate, and a sufficient water layer could not be formed on the surface of the carrier film. Consequently, the peelability of the support was poor. Furthermore, it is thought that the openings of the through holes in the carrier film easily caught on the colored layer, causing damage to the colored layer.

[0087] Furthermore, when the maximum surface height Rz of the carrier film exceeded 5 μm (when PET film 7 was used), the irregularities on the surface of the carrier film were more likely to catch on the colored layer, making the colored layer more susceptible to damage. In these cases, the handling of the adhesive film during application was inferior compared to when the maximum surface height Rz of the carrier film was 5 μm or less.

[0088] In contrast, when the maximum surface height Rz of the carrier film is 300 nm or more and 5 μm or less (when PET films 2 to 6 are used), the support can be slid and peeled off even if the maximum height Rz of the attached film changes, making it possible to easily attach the attached film.

[0089]

[0090] The decorative laminated sheets of Embodiments 3 and 4 described above are the same as the decorative laminated sheet of Embodiment 1, except that the maximum height Rz of the attached film is different. In Embodiments 3 and 4 as well, when the maximum height Rz of the carrier film is less than 300 nm (when PET film 1 is used), it was difficult to peel off the support by sliding it. On the other hand, when the maximum surface height Rz of the carrier film exceeds 5 μm (when PET film 7 is used), the operability when attaching the attached film was poor.

[0091] In contrast, when the maximum surface height Rz of the carrier film is 300 nm or more and 5 μm or less (when PET films 2 to 6 are used), the support can be slid and peeled off even if the maximum height Rz of the attached film changes, and the operability is also good.

[0092]

[0093] The decorative laminated sheet of Embodiment 5 described above is the same as the decorative laminated sheet of Embodiment 1, except that the maximum height Rz of the attached film is different. In Embodiment 5 as well, when the maximum height Rz of the carrier film is less than 300 nm (when PET film 1 is used), it was difficult to peel off the support by sliding it. On the other hand, when the maximum surface height Rz of the carrier film exceeds 5 μm (when PET film 7 is used), the operability when attaching the attached film was poor.

[0094] In contrast, when the maximum surface height Rz of the carrier film is 300 nm or more and 5 μm or less (when PET films 2 to 6 are used), the support can be slid and peeled off even if the maximum height Rz of the attached film changes, and the operability is also good.

[0095] Furthermore, the decorative laminated sheet of Embodiment 6 is the same as the decorative laminated sheet of Embodiment 1, except that the thickness and maximum height Rz of the attached film are different. In Embodiment 6 as well, when the maximum height Rz of the carrier film is less than 300 nm (when PET film 1 is used), it was difficult to peel off the support by sliding it. On the other hand, when the maximum surface height Rz of the carrier film exceeds 5 μm (when PET film 7 is used), the operability when attaching the attached film was poor. Moreover, even when the maximum surface height Rz of the carrier film is 300 nm or more and 5 μm or less (when PET films 2 to 6 are used), as in Embodiment 6, if the roughness of the attached film is greater than 0.25 μm, it was difficult to peel the support from the attached film. When a colored layer is formed on the attached film, it is thought that the surface roughness of the attached film is inherited by the surface roughness of the colored layer. In this case, the contact area between the colored layer and the carrier film decreases, and the affinity between the support and the adhesive film becomes relatively greater than the affinity between the colored layer and the carrier film. As a result, it is thought that the support becomes more difficult to peel off the adhesive film.

[0096]

[0097] Furthermore, the decorative laminated sheet of Embodiment 7 is the same as the decorative laminated sheet of Embodiment 1, except that the thickness and maximum height Rz of the attached film are different. In Embodiment 7 as well, when the maximum height Rz of the carrier film is less than 300 nm (when PET film 1 is used), it was difficult to peel off the support by sliding it. On the other hand, when the maximum surface height Rz of the carrier film exceeds 5 μm (when PET film 7 is used), the operability when attaching the attached film was poor. Moreover, even when the maximum surface height Rz of the carrier film is 300 nm or more and 5 μm or less (when PET films 2 to 6 are used), as in Embodiment 7, if the roughness of the attached film is greater than 0.25 μm, it becomes difficult to peel the support from the attached film. When a colored layer is formed on the attached film, it is thought that the surface roughness of the attached film is carried over to the surface roughness of the colored layer. As a result of the reduced contact area between the colored layer laminated on the adhesive film and the carrier film, the affinity between the support and the adhesive film became relatively greater than the affinity between the colored layer and the carrier film, making it more difficult to peel the support from the adhesive film.

[0098] Furthermore, the decorative laminated sheet of Embodiment 8 is the same as the decorative laminated sheet of Embodiment 4, except that the carrier film has through holes. When the perforation rate of the carrier film is less than 35% (when PET films 8 to 13 are used), the support can be peeled off by sliding, and handling is also improved.

[0099] On the other hand, when the porosity of the carrier film was 35% (when PET film 14 was used), the carrier film allowed water to permeate, making it difficult for a water film to form on the surface of the carrier film. Therefore, it was difficult to peel the support by sliding. Furthermore, in this embodiment, although the maximum height Rz of the carrier film was low, the openings of the through holes tended to catch on the colored layer, resulting in poor operability.

[0100]

[0101] Furthermore, the decorative laminated sheet of Embodiment 9 is the same as the decorative laminated sheet of Embodiment 4, except that the thickness of the carrier film is different. In Embodiment 9, the support could be peeled off by sliding, and the operability was also good. In addition, these PET films were less likely to damage the colored layer. However, when the thickness of the carrier film was less than 10 μm (when PET film 15 was used), the carrier film became too soft, and the migration of the adhesive film decreased. On the other hand, when the thickness of the carrier film exceeded 150 μm (when PET film 20 was used), the conformability of the carrier film to the surface to be adhered decreased.

[0102] The decorative laminated sheet of Embodiment 10 is the same as the decorative laminated sheet of Embodiment 4, except that the thickness of the support and the maximum height Rz are different. In Embodiment 10, if the thickness of the support is 7 μm or more and 50 μm or less, the support can be peeled off by sliding regardless of the maximum height Rz, and the operability is also good. On the other hand, if the thickness of the support is less than 7 μm or more than 50 μm, the support cannot be peeled off by sliding.

[0103]

[0104] The decorative laminated sheets of Embodiments 11 and 12 are the same as the decorative laminated sheet of Embodiment 10, except for the thickness of the attached film and the maximum height Rz. In Embodiments 11 and 12, if the thickness of the support is 7 μm or more and 50 μm or less, the support can be peeled off by sliding, and the operability is also good. On the other hand, if the thickness of the support is less than 7 μm or more than 50 μm, the support cannot be peeled off by sliding.

[0105]

[0106] The decorative laminated sheets of Embodiments 13 and 14 are the same as the decorative laminated sheet of Embodiment 10, except for the thickness of the attached film and the maximum height Rz. In Embodiments 13 and 14, if the thickness of the support is 7 μm or more and 50 μm or less, the support can be peeled off by sliding, and the operability is also good. On the other hand, if the thickness of the support is less than 7 μm or more than 50 μm, the support cannot be peeled off by sliding.

[0107]

[0108] The decorative laminated sheets of Embodiments 15 and 16 are the same as the decorative laminated sheet of Embodiment 10, except for the thickness of the attached film and the maximum height Rz. In Embodiments 15 and 16, if the thickness of the support is 7 μm or more and 50 μm or less, the support can be peeled off by sliding, and the operability is also good. On the other hand, if the thickness of the support is less than 7 μm or more than 50 μm, the support cannot be peeled off by sliding.

[0109] This application claims priority under Japanese Patent Application No. 2024-194449, filed on November 6, 2024. All contents described in the specification and drawings of said application are incorporated herein by reference.

[0110] The cosmetic laminate sheet disclosed herein allows for easy peeling of the support from the adhesive film. Furthermore, the adhesive film can be applied to the substrate without wrinkles. Therefore, it is extremely useful for applying various cosmetic and medical sheets.

[0111] 10 Laminate 12 Support 14 Adhesive film 20 Carrier film 100 Cosmetic laminate sheet 200 Surface to which the adhesive is applied (skin)

Claims

1. A laminated cosmetic sheet comprising: a water-absorbing support and a laminate including an adhesive film laminated on the support; and a carrier film laminated on the adhesive film of the laminate, wherein the thickness of the support is 7 μm or more and 50 μm or less; the maximum height Rz of the surface of the adhesive film on which the carrier film is laminated, as determined in accordance with JIS B0601:2001, is 250 nm or less; the thickness of the carrier film is 10 μm or more and 150 μm or less; and the maximum height Rz of the region of the carrier film on which the adhesive film is laminated, as determined in accordance with JIS B0601:2001, is 300 nm or more and 5 μm or less.

2. The decorative laminated sheet according to claim 1, wherein the contact angle with water of the region of the carrier film on which the adhesive film is laminated is 90° or less.

3. The decorative laminated sheet according to claim 1, wherein the carrier film has a plurality of through holes, the average opening diameter of the through holes is 5000 μm or less, and the opening ratio of the through holes is less than 35%.

4. The decorative laminated sheet according to claim 1, wherein the thickness of the attached film is 10 nm or more and 5 μm or less.

5. The decorative laminated sheet according to claim 1, further comprising a colored layer between the adhesive film and the carrier film.

6. A method for applying an adhesive film, comprising the steps of: applying an aqueous liquid to a decorative laminated sheet according to any one of claims 1 to 5 from the support side; sliding the support in a direction substantially parallel to the interface between the support and the adhesive film to peel the support from the adhesive film; and bringing the adhesive film on the carrier film into close contact with the object to be applied to, thereby transferring the adhesive film from the carrier film to the object to be applied to, in this order.

7. A cosmetic set comprising: a support having water absorption properties; a laminate including an adhesive film laminated on the support; and a carrier film that is impermeable to aqueous liquids, wherein the carrier film is laminated on the adhesive film of the laminate, and the support is peeled off from the adhesive film on the carrier film, wherein the thickness of the support is 7 μm or more and 50 μm or less; the maximum height Rz of the surface of the adhesive film that is laminated with the carrier film, as determined in accordance with JIS B0601:2001, is 250 nm or less; the thickness of the carrier film is 10 μm or more and 150 μm or less; and the maximum height Rz of the region of the carrier film that is laminated with the adhesive film, as determined in accordance with JIS B0601:2001, is 300 nm or more and 5 μm or less.

8. A method for applying an adhesive film, comprising the steps of: laminating the carrier film onto the adhesive film of the laminate of the cosmetic set of claim 7; applying an aqueous liquid from the support side; sliding the support in a direction substantially parallel to the interface between the support and the adhesive film to peel the support from the adhesive film; and bringing the adhesive film on the carrier film into close contact with the object to be applied to, thereby transferring the adhesive film from the carrier film to the object to be applied to, in this order.

9. A carrier film for supporting the attachment of the adhesive film to an object, wherein the carrier film is laminated on a surface of the adhesive film having a water-absorbing support having a thickness of 7 μm to 50 μm, and an adhesive film laminated on the support, and the maximum height Rz of the adhesive film, as determined in accordance with JIS B0601:2001, is 250 nm or less, and the carrier film has a thickness of 10 μm to 150 μm, is poorly permeable to aqueous liquids, and the maximum height Rz of the region laminated on the adhesive film, as determined in accordance with JIS B0601:2001, is 300 nm to 5 μm.

10. A method for applying an adhesive film, comprising the steps of: preparing a laminate having a water-absorbing support and an adhesive film laminated on the support; laminating the carrier film described in claim 9 onto the adhesive film of the laminate; applying an aqueous liquid from the support side; sliding the support in a direction substantially parallel to the interface between the support and the adhesive film to peel the support from the adhesive film; and bringing the adhesive film on the carrier film into close contact with an object to be applied to, thereby transferring the adhesive film from the carrier film to the object to be applied to.

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