JP4051976B2 - Decorative sheet - Google Patents

Description

【００４２】
【発明の効果】
以上詳細に説明した様に、本発明の化粧シートは、基材シート上に透明アクリル系樹脂フィルムを積層してなる化粧シートにおいて、前記透明アクリル系樹脂フィルムとして、裏面（前記基材シート側の面）の表面粗さが０．２μｍ以下であり、表面（前記基材シートとは反対側の面）の表面粗さが０．６μｍ以上、且つ、６０°光沢値が１５以下であるものを使用したことにより、意匠的に良好な艶消し感を有しており、しかも、基材シートと透明アクリル系樹脂フィルムとの積層時に空気を巻き込むことがなく、層間密着性に優れ、銀目や膨れ等の意匠不良のない高品質の化粧シートを、容易に製造することができる。以て、例えば、玄関ドアや破風板等の準外装部位の様に耐候性が要求される用途において、所望の艶消し感を有する化粧シートを容易に得ることができる等、実用上の優れた利点を有するものである。
【図面の簡単な説明】
【図１】本発明の化粧シートの実施の形態を示す側断面図である。
【符号の説明】
１‥‥透明アクリル系樹脂フィルム
２‥‥接着剤層
３‥‥絵柄層
４‥‥基材シート
５‥‥裏面プライマー層[0001]
BACKGROUND OF THE INVENTION
The present invention is used as interior and exterior materials such as wall materials, ceiling materials and flooring materials in buildings such as houses, building materials such as furniture, exterior materials such as furniture fixtures and home appliances, and vehicle interior and exterior materials such as automobiles. The present invention relates to a decorative sheet used.
[0002]
[Prior art]
Conventionally, as a decorative sheet used for such applications, an appropriate pattern is printed on a base sheet made of a transparent or opaque thermoplastic resin film, and a transparent thermoplastic resin film is laminated thereon. The configuration is the most common. As the thermoplastic resin film, a polyvinyl chloride resin film was once the most common. However, depending on the application, for example, a high degree required for a semi-exterior part such as an outer surface of a front door, a window frame, a windbreak plate, or the like. Responding to such demands, such as weather resistance, high transparency and sharpness required for dressing tables and panels, etc., which may not be possible with polyvinyl chloride resin film. As a transparent thermoplastic resin film on the surface side, an acrylic resin film excellent in weather resistance and transparency is generally employed (for example, Japanese Utility Model Publication No. 55-151532, Japanese Utility Model Publication). 61-47634, JP-A 63-37935, JP-A 63-170231, JP-A 5-147182, etc.).
[0003]
In recent years, the substrate sheet is also being switched from a polyvinyl chloride resin film to a non-chlorine resin film in view of the problem of generation of harmful substances during combustion. As the non-chlorine resin film, A resin film is most commonly used (Japanese Patent Laid-Open Nos. 6-262729, 8-118565, 9-300559, 10-2092, 10-109387, Kaihei 10-146933, JP-A-10-157018, JP-A-10-286930, JP-A-11-105211, JP-A-11-170448, JP-A-11-216833, JP-A-11-240113, JP-A-11-240113 2000-15756, JP 2000-85072, JP 2000-21070, JP 2000-2 5672, JP 2000-280283, JP 2000-326450, JP 2000-326451, JP 2001-18251, JP 2001-80296, JP 2001-105452, JP 2001-138450. Issue). In addition to the above-mentioned cases for the purpose of weather resistance, transparency, sharpness, etc., the olefin-based resin film is suitable for molding processability such as bending processability, vacuum molding lamination processability, injection molding lamination processability. Since it is somewhat inferior, a structure in which a transparent acrylic resin film is laminated on the surface may be employed for the purpose of improving the molding processability of a decorative sheet using an olefin resin film as a base sheet.
[0004]
By the way, in such a decorative sheet, as a method for laminating a transparent acrylic resin film on a base sheet, there are some proposals such as a melt extrusion laminating method, but acrylic resins are not so good in melt extrusion suitability. Therefore, the thermal lamination method or the dry lamination method is often used. However, a glossy clear film with a smooth surface may be used as the transparent acrylic resin film, but depending on the use of the decorative sheet, the surface may be required to have a matte finish. When a normal mat clear film with a matte shape is used, air is easily entrapped when laminated on a base sheet, resulting in insufficient interlayer adhesion strength, There is a problem that the appearance design tends to be poor due to a visible phenomenon) and swelling (a phenomenon in which the surface of the transparent acrylic resin film on the bubbles swells).
[0005]
To make the surface of the decorative sheet matte, in addition to using a mat clear film as a transparent acrylic resin film, after laminating a gloss clear film, top coat a gloss adjusting agent containing a matting agent. Also, a method of embossing the surface after lamination may be considered. However, with regard to the former, since the acrylic resin is not so good in solvent resistance, the surface of the transparent acrylic resin film tends to be whitened by applying an organic solvent-based top coat, and the acrylic resin is easily damaged. In the case of an aqueous top coat that does not affect, sufficient adhesion to an acrylic resin film cannot be obtained. On the other hand, regarding the latter, the temperature (usually about 130 to 150 ° C.) at which the matte-like fine embossing can be satisfactorily formed on the acrylic resin film is a general base sheet material such as an olefin resin. Is higher than the heat-resistant temperature (usually about 80 to 110 ° C.), so that a good matte feeling can be obtained in an embossing temperature condition that does not cause deformation such as extreme expansion and contraction in the resulting decorative sheet. There is a problem that it is difficult.
[0006]
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-mentioned problems in the prior art, and the object thereof is based on a transparent acrylic resin film excellent in weather resistance, transparency, moldability, and the like. In a decorative sheet provided on a material sheet, the surface state is adjusted to a desired matte feeling, and the decorative sheet can be easily manufactured without causing poor adhesion between layers, defective design such as silver and swelling, etc. Is to provide.
[0007]
[Means for Solving the Problems]
The decorative sheet of the present invention is a decorative sheet formed by laminating a transparent acrylic resin film on a base sheet, and the surface roughness of the back surface (the base sheet side surface) of the transparent acrylic resin film is 0. and at 2μm or less, the surface roughness of the (surface opposite to the base sheet) is 0.6μm or more, and, 60 ° gloss values Ri der 15 or less, the base sheet is olefin resin film and it is characterized in der Rukoto.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
For example, as shown in FIG. 1, the decorative sheet of the present invention is provided with a pattern layer 3 formed by printing an appropriate pattern on the surface of a base sheet 4 as desired, and an adhesive layer on the pattern layer 3 as necessary. The transparent acrylic resin film 1 is laminated through 2. And in this invention, the surface roughness of the back surface (the said base material sheet side surface) of this transparent acrylic resin film 1 is 0.2 micrometer or less, and the surface (surface on the opposite side to the said base material sheet) The surface roughness is 0.6 μm or more and the 60 ° gloss value is 15 or less.
[0010]
Since the back surface of the transparent acrylic resin film 1 is a smooth surface having a surface roughness of 0.2 μm or less, there is a risk of air being entrained when laminating on the base sheet 4 by a thermal laminating method or a dry laminating method. Therefore, problems such as a decrease in inter-layer adhesion due to bubbles remaining between layers and a decrease in design due to bloating of bubbles or bubbles where bubbles appear are not generated. In addition, the surface of the transparent acrylic resin film 1 has been previously processed into a desired matte shape with a surface roughness of 0.6 μm or more and a 60 ° gloss value of 15 or less (single-sided gloss / single-sided mat clear). Film), it is not necessary to apply a matting process such as embossing or matting topcoat treatment after lamination with the base sheet 4, and therefore, heat distortion during embossing and solvent action during topcoat processing. Thus, a decorative sheet having a desired matte feeling and excellent design can be easily obtained without causing problems such as whitening.
[0011]
Examples of the acrylic resin constituting the transparent acrylic resin film 1 include methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, cyclohexyl (meth) acrylate, ethylhexyl (meth) acrylate, and the like. A (meth) acrylic acid ester monomer as a main component, or a thermoplastic resin obtained by copolymerization. If necessary, acrylic resin such as (meth) acrylonitrile, (meth) acrylic acid, etc. A monomer or an aromatic monomer such as styrene, α-methylstyrene, vinyltoluene or the like is added as a copolymerization component. For example, styrene-butadiene copolymer, methyl methacrylate-butadiene copolymer, methacryl Rubber components such as acid methyl-styrene-butadiene copolymer are graft copolymer, block copolymer or Rend may be or have been. Among them, those having methyl methacrylate as a main component are most desirably used in terms of various physical properties such as weather resistance, transparency, workability, mechanical properties, and surface properties.
[0012]
The material of the base sheet 4 is not particularly limited in the present invention. For example, paper such as thin paper, titanium paper, fine paper, resin mixed paper, resin-impregnated paper, paper-reinforced paper, woven fabric or non-woven fabric In addition, a thermoplastic resin film, a metal foil such as an aluminum foil, etc., or a laminate of two or more thereof, in short, the same as that in a conventional decorative sheet can be arbitrarily used. Among these, it is most desirable to use a thermoplastic resin film in consideration of processability and various physical properties.
[0013]
Examples of the thermoplastic resin film include polyolefin resins such as polyethylene, polypropylene, polybutene, and polymethylpentene, ethylene-vinyl acetate copolymer or a saponified product thereof, ethylene- (meth) acrylic acid (ester) copolymer, Ethylene-unsaturated carboxylic acid copolymer, olefin resin such as polyolefin copolymer such as neutralized metal (ionomer), polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyarylate, polycarbonate, copolymer polyester, etc. Polyester resins, acrylic resins such as polymethyl methacrylate, polyamide resins such as 6-nylon and 6,6-nylon, styrene resins such as polystyrene, AS resin, ABS resin, cellulose acetate, nitrose 2 selected from fiber derivatives such as loin, chlorinated resins such as polyvinyl chloride and polyvinylidene chloride, fluororesins such as polyvinyl fluoride, polyvinylidene fluoride, tetrafluoroethylene, and ethylene-tetrafluoroethylene, and the like. A film made of a mixture of at least seeds, a copolymer, a composite, a laminate, or the like can be used.
[0014]
However, considering the adaptation to environmental problems that are becoming social problems in recent years, the use of halogen-based resins such as the above-mentioned chlorine-based resins is not very preferable, and non-halogens that do not contain halogen elements such as chlorine. It is preferable to use a base resin. Above all, such as surface price, distribution volume, ease of procurement, balance of moderate flexibility and strength as a base sheet for decorative sheets, workability, wear resistance, solvent resistance, etc. In view of various aspects such as physical properties, it is desirable to use a film made of an olefin resin or a polyester resin, and it is most desirable to use an olefin resin film.
[0015]
Various homopolymers and copolymers such as those listed above are known as olefin resins, but among them, the most suitable as a material for a base sheet for a decorative sheet is a polypropylene resin, that is, propylene as a main component. Specifically, for example, homopolypropylene resin, random polypropylene resin, block polypropylene resin, and α-olefin having 2 to 20 carbon atoms other than propylene having a polypropylene crystal part, Preferred examples include propylene-α-olefin copolymers containing 15 mol% or more of a comonomer of ethylene, butene-1, 4-methylpentene-1, hexene-1 or octene-1. Also, low density polyethylene, styrene-butadiene copolymer rubber or hydrogenated product, ethylene-α-olefin copolymer, ethylene-propylene copolymer rubber, ethylene-propylene-nonconjugated, which are usually used for softening polypropylene resins A modifier such as a diene copolymer rubber may be added.
[0016]
In general, the decorative sheet as in the present invention often requires a concealing property against the color and defects of the surface of the adherend substrate. Therefore, the base sheet 4 can be concealed by adding a concealing pigment to the thermoplastic resin constituting the base sheet 4 in order to give the target decorative sheet sufficient concealment. Further, instead of making the base sheet 4 concealable, a concealing layer made of a printing ink composition or a paint containing a concealing pigment may be provided on the front surface or the back surface of the base sheet 4, or both are used in combination. Of course it is also possible. On the contrary, the base sheet 4 is made of a transparent or translucent material, and by not providing a concealing layer, it is possible to make use of the color tone and texture of the surface of the substrate to be adhered. Of course, a decorative sheet is also possible.
[0017]
For the base sheet 4 and the transparent acrylic resin film 1, for example, an antioxidant, an ultraviolet absorber, a light stabilizer, a heat stabilizer, a plasticizer depending on the intended use of the decorative sheet and the required quality. In addition, one or more conventionally known various additives such as a lubricant, an antistatic agent, an antibacterial agent, an antifungal agent, a flame retardant, a gloss adjusting agent, and a filler may be added.
[0018]
There is no restriction | limiting in particular in the thickness of the base material sheet 4 and the transparent acrylic resin film 1, For example, it can be set as the same thickness as those in the conventional general decorative sheet. Specifically, although it depends on the use of the decorative sheet and the type of the constituent material of the base sheet 4, the thickness of the base sheet 1 is generally about 20 to 300 μm, more preferably about 50 to 200 μm. The thickness of the surface resin layer 4 is about 10 to 200 μm, more preferably about 20 to 100 μm.
[0019]
The pattern layer 3 is provided for the purpose of imparting design properties with an arbitrary desired pattern to the target decorative sheet. Therefore, for example, when the purpose is sufficiently achieved by coloring the base sheet 4 or forming a concealed solid print layer, such as a plain decorative sheet intended only for surface coloring or color adjustment, In the case where a pattern is applied to 4 itself by kneading of a pigment, transfer of sublimation or melt transferable dye, etc., the pattern layer 3 may not be particularly provided. However, generally, the pattern layer 3 having an appropriate pattern is often provided on the surface of the base sheet 4 by means such as a printing method.
[0020]
There are no limitations on the constituent material and the forming method of the picture layer 3, and any image forming material or image forming method that has been applied to the picture layer of a decorative sheet according to the related art can be appropriately applied. Specifically, for example, a printing ink or a paint obtained by dissolving or dispersing a colorant such as a dye or a pigment in an appropriate solvent together with an appropriate binder resin can be used.
[0021]
Examples of the colorant include inorganic pigments such as carbon black, titanium white, zinc white, dial, bitumen, and cobalt blue, azo pigments, lake pigments, anthraquinone pigments, phthalocyanine pigments, quinacridone pigments, isoindolinone pigments, dioxazines. Organic pigments such as pigments, metal powder pigments such as gold powder, silver powder, copper powder, aluminum powder and bronze powder, pearl luster pigments such as fish scale powder, basic lead carbonate, bismuth oxide chloride, titanium oxide-coated mica, etc. A mixture of two or more selected can be used.
[0022]
Examples of the binder resin include acrylic resins, styrene resins, polyester resins, urethane resins, polyvinyl resins, alkyd resins, petroleum resins, ketone resins, epoxy resins, melamine resins, and fluorine resins. In addition, various synthetic resins such as silicone resins, fiber derivatives, rubber resins, or a mixture or copolymer of two or more thereof can be used.
[0023]
In addition, for example, extender pigments, plasticizers, dispersants, surfactants, tackifiers, thixotropic agents, lump agents, leveling agents, adhesion aids, drying agents, stabilizers, curing agents, curing Various additives such as an accelerator or a retarder can also be added as appropriate.
[0024]
In order to give the target decorative sheet excellent interlayer adhesion, it is preferable to use a resin having strong adhesiveness or cohesion as the binder resin of the pattern layer 3, and from this point of view a thermosetting resin or It is preferable to use a cross-linking curable resin such as an ionizing radiation curable resin. Among them, it has moderate flexibility and flexibility while having high cohesive strength after crosslinking and curing, and exhibits excellent adhesion to inert thermoplastic resins such as olefin resins. It is most desirable to use one containing at least a two-component curable urethane resin as a main component.
[0025]
The method for forming the pattern layer 3 is not particularly limited, and various conventionally known printing methods such as a gravure printing method, an offset printing method, a screen printing method, a flexographic printing method, an electrostatic printing method, and an inkjet printing method are used. be able to. In addition, for example, in the case of a solid surface, in addition to the various printing methods described above, for example, by various coating methods such as a roll coating method, a knife coating method, an air knife coating method, a die coating method, a lip coating method, a flow coating method, etc. You can also.
[0026]
Further, prior to the formation of the pattern layer 3, if necessary, the surface of the base sheet 4 is subjected to easy adhesion treatment such as corona treatment, ozone treatment, plasma treatment, ionizing radiation treatment, acid treatment, alkali treatment, anchor or primer treatment. By further applying, the adhesion between the base sheet 4 and the pattern layer 3 can be further improved.
[0027]
There are no particular restrictions on the type of the pattern that the pattern layer 3 constitutes, for example, a wood grain pattern, a stone pattern, a cloth pattern, an abstract pattern, a geometric pattern, a character, a symbol, etc. that have been widely used in conventional decorative sheets Or, a combination of a plurality of them, or in the case of simply coloring or adjusting the color of the whole surface, it may be a solid monochrome color. In short, any desired picture is adopted according to the intended use of the decorative sheet. be able to.
[0028]
The base sheet 4 and the transparent acrylic resin film 1 are generally bonded and laminated via an adhesive layer 2 made of an appropriate adhesive. The adhesive used for this is arbitrary depending on the use of the decorative sheet, the material of the base sheet 4, etc., such as a solvent activated type, a heat activated type, a pressure activated type, and a reactive curing type. A dry laminate adhesive, which is a kind of reaction curable adhesive, or a heat-sensitive heat-sensitive adhesive (heat sealant) can be preferably used.
[0029]
A dry laminate adhesive is a coating solution prepared by dissolving a reaction precursor of an adhesive resin in an appropriate solvent on the adhesive surface of one or both adherends. Two-component curing type urethane adhesive that uses reaction between polyols such as polyester polyol or polyether polyol and polyisocyanate compounds such as tolylene diisocyanate, diphenylmethane diisocyanate, and hexamethylene diisocyanate. Agents are most representative.
[0030]
The heat-sensitive adhesive is a solid at room temperature, and is mainly composed of a thermoplastic resin that has a property of melting or softening by heating to develop adhesiveness and solidifying and solidifying when cooled. It is dissolved in a solvent or melted by heating, applied to the adhesion surface of one or both of the adherends, and bonded by heating and pressurizing the two, and its resin system Examples thereof include an ethylene-vinyl acetate copolymer resin system, a vinyl chloride acetate resin system, an acrylic resin system, a polyurethane resin system, a polyester resin system, a polyamide resin system, or a mixed resin system of two or more thereof.
[0031]
In the bonding of the base sheet 4 and the transparent acrylic resin film 1 in the decorative sheet of the present invention, normal use conditions are provided along with low-temperature adhesiveness that can be sufficiently bonded at a relatively low temperature that does not cause significant thermal deformation of the two. Within the temperature range, the cohesive force under heating is required so as not to melt or soften and peel even at high temperatures. As a material satisfying this requirement, a heat-sensitive adhesive made of an acrylic-polyester-vinyl acetate resin can be suitably used.
[0032]
It takes advantage of the advantages of acrylic resins and vinyl acetate resins that exhibit excellent adhesive properties when heated at relatively low temperatures, while taking into account the characteristics of polyester resins with little reduction in cohesive strength under heating. It is. The blending ratio of each resin is preferably in the range of 10 to 60% by weight of acrylic resin, 10 to 60% by weight of polyester resin, and 10 to 60% by weight of vinyl chloride, and in particular, 20 to 50% by weight of acrylic resin. %, Polyester resin 20 to 50% by weight, vinyl chloride resin 20 to 50% by weight is most preferable.
[0033]
As another method to achieve both low-temperature adhesiveness and heat resistance (cohesive force under heating), the reaction is performed at the bonding temperature while mainly using a resin with a low melting point or low softening point that exhibits sufficient adhesion at the bonding temperature. However, there is a method of using a composition containing a high-temperature reaction type cross-linking agent that does not react at room temperature or coating temperature. Specifically, a resin composition mainly composed of vinyl chloride acetate-polyol resin and blended with a blocked isocyanate compound can be suitably used. This is because the vinyl chloride-polyol resin, which is the main resin before curing, is in an uncrosslinked state, so that it melts easily by heating at the time of adhesion and exhibits excellent adhesiveness, and is blocked by the heating. The blocking agent of the isocyanate compound is dissociated and cured by cross-linking reaction to produce a vinyl chloride-urethane resin that exhibits a cohesive force under heating due to an intermolecular cross-linked structure.
[0034]
The decorative sheet of the present invention is used by being stuck (laminated) on the surface of various base materials such as a wooden base material and an inorganic base material, as in the case of conventional decorative sheets. In the sticking, an appropriate adhesive such as urethane or vinyl acetate is used, but depending on the material of the base sheet 4 (for example, an olefin resin film) In some cases, adhesion with a laminating adhesive is insufficient. In such a case, it is preferable to provide a back surface primer layer 5 made of a resin composition excellent in adhesiveness with a general laminating adhesive on the back surface of the base sheet 4.
[0035]
As the back surface primer layer 5, various primer agents such as urethane-based, acrylic-based, ethylene-vinyl acetate copolymer system, vinyl chloride-vinyl acetate copolymer system are known. You can select and use one that matches the material. In addition, when powder, such as a silica, an alumina, a calcium carbonate, barium sulfate, is added to the back surface primer layer 5, for example, the surface of the back surface primer layer 5 is roughened, thereby blocking when the decorative sheet is wound and stored. Can be prevented, and the adhesiveness with the laminating adhesive can be improved by the anchoring effect.
[0036]
【Example】
Hereinafter, the present invention will be described in more detail with reference to specific examples and comparative examples of the decorative sheet of the present invention.
[0037]
Example 1
A polypropylene resin film with a thickness of 90 μm is used as a base sheet, and a pattern layer is printed on the surface with urethane printing ink. Further, a heat sealant (acrylic / vinyl acetate / polyester = 1/1/1) is applied. An adhesive layer is formed by coating to a film thickness of 1 μm after drying. On the adhesive layer surface, the surface roughness of the lower surface is 0.2 μm, the surface roughness of the upper surface is 0.6 μm, and the 60 ° gloss value is No. 5 with a transparent acrylic resin film (single-sided mat clear type) with a thickness of 50 μm facing up and laminated with heat lamination at a film surface temperature of 120 ° C. Finally, silica powder is added to the back of the base sheet The applied urethane primer was applied to a film thickness of 1 μm after drying to form a back primer layer to produce a decorative sheet of the present invention.
[0038]
Comparative Example 1
In the above Example 1, the transparent acrylic resin film was changed to one having a surface roughness of 0.6 μm and a 60 ° gloss value of 5 on both the upper and lower surfaces (double-sided mat clear type). A decorative sheet was produced under the same conditions as those described above.
[0039]
Comparative Example 2
In Example 1 above, the transparent acrylic resin film was changed to one having a surface roughness of 0.2 μm and a 60 ° gloss value of 18 on both the upper and lower surfaces (double-side gloss type). A decorative sheet was produced under the same conditions.
[0040]
Evaluation About the decorative sheet of Example 1 and Comparative Examples 1 and 2 above, the surface 60 ° gloss value, matte feeling (visual evaluation, ○ = good, × = bad) and surface state (presence or absence of bubbles on the bonded surface) When visual evaluation, (circle) = no air bubbles, x = air bubbles) was evaluated, the results were as follows.
[0041]

[0042]
【The invention's effect】
As described in detail above, the decorative sheet of the present invention is a decorative sheet formed by laminating a transparent acrylic resin film on a base sheet, and the back surface (on the base sheet side) is used as the transparent acrylic resin film. Surface) having a surface roughness of 0.2 μm or less, a surface (surface opposite to the substrate sheet) having a surface roughness of 0.6 μm or more, and a 60 ° gloss value of 15 or less. By using it, it has a good matte feeling in design, and it does not involve air when laminating the base sheet and the transparent acrylic resin film, has excellent interlayer adhesion, A high-quality decorative sheet free from design defects such as blisters can be easily produced. Therefore, for example, in applications where weather resistance is required such as a semi-exterior part such as a front door or a windbreak plate, a decorative sheet having a desired matte feeling can be easily obtained, etc. It has advantages.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing an embodiment of a decorative sheet of the present invention.
[Explanation of symbols]
1 ... Transparent acrylic resin film 2 ... Adhesive layer 3 ... Pattern layer 4 ... Base sheet 5 ... Back primer layer

Claims (1)

In the decorative sheet formed by laminating the transparent acrylic resin film on the base sheet, the surface roughness of the back surface (the base sheet side surface) of the transparent acrylic resin film is 0.2 μm or less, and the surface ( the base sheet and is 0.6μm or more surface roughness of the surface) on the opposite side, and, 60 ° gloss values Ri der 15 or less, the base sheet and the said olefin resin film der Rukoto Makeup sheet.

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