Decorative sheets, tack sheets, and decorative components

The decorative sheet with a specific pigment composition and UV absorbers in PVC resin layers addresses heat accumulation in PVC resin building materials, enhancing heat-shielding and recyclability.

JP2026047247APending Publication Date: 2026-03-13TOPPAN HOLDINGS INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

PVC resin building materials decorated with dark-colored or low-luminosity decorative sheets tend to absorb sunlight, leading to heat accumulation and deformation due to solar radiation.

Method used

A decorative sheet comprising an opaque layer with a pattern layer and a transparent resin layer, where the pattern layer does not contain black pigment and includes specific organic pigments, and the transparent resin layer contains UV absorbers, with a thickness of 50 μm to 120 μm, enhancing heat-shielding properties.

Benefits of technology

The decorative sheet reduces solar radiation absorption, improving heat insulation and preventing deformation and expansion of the base material, while maintaining recyclability and design flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide decorative sheets, tack sheets, and decorative components that offer high heat-shielding properties even at low brightness. [Solution] A decorative sheet 10 comprising an opaque colored resin layer 11, a pattern layer 12 provided on one side of the colored resin layer 11, and a light-transmitting transparent resin layer 13 provided on the pattern layer 12, wherein the L* value on the surface side is 45 or less, and the pattern layer 12 does not contain black pigment, or contains only at least one organic pigment of the azomethine azo type and perylene type as the black pigment.
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Description

Technical Field

[0001] The present invention relates to a cosmetic sheet, a tack sheet, and a cosmetic member.

Background Art

[0002] Although polyvinyl chloride (PVC) resin may contain harmful substances such as dioxins in the exhaust gas when incinerated, in recent years, due to the improvement of incineration technology and exhaust gas treatment technology, the above-mentioned harmful substances contained in the exhaust gas have been greatly suppressed, and its utilization value has been greatly re-evaluated.

[0003] In addition, in housing equipment, due to the increasing awareness of net-zero-energy houses (ZEH), etc., fittings such as highly heat-insulating sashes and doors using PVC resin as a structural material have begun to be used (see, for example, Patent Document 1 below). In fittings made of PVC resin, considering environmental aspects, if a PVC resin-made cosmetic sheet is used on the surface for decoration, it becomes possible to easily cope with recycling.

[0004] Such a cosmetic sheet made of PVC resin is usually manufactured by performing doubling (thermal lamination) processing in which a pattern layer is formed by printing a pattern with ink on a colored resin layer made of colored PVC resin, and then a transparent resin layer made of PVC resin is overlapped on the pattern layer and heated while applying pressure.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In PVC resin building materials used outdoors, if they are decorated with dark-colored or other low-luminosity decorative sheets, they tend to absorb sunlight (solar radiation) and accumulate heat, which can cause deformation and expansion of the constituent materials and potentially lead to problems with installation.

[0007] Therefore, the present invention aims to provide decorative sheets, tack sheets, and decorative components that have high heat-shielding properties even with low brightness. [Means for solving the problem]

[0008] To solve the aforementioned problems, the present invention provides a decorative sheet comprising: an opaque layer having concealing properties; a pattern layer provided on one side of the opaque layer; and a transparent resin layer provided on the pattern layer having light transmittance, wherein the surface L* value is 45 or less, and the pattern layer does not contain a black pigment, or contains only at least one organic pigment of the azomethine azo type and perylene type as the black pigment.

[0009] Furthermore, in the decorative sheet according to the present invention, it is preferable that the pattern layer of the decorative sheet contains at least one pigment from among isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium dioxide.

[0010] Furthermore, in the decorative sheet according to the present invention, it is preferable that the opaque layer of the decorative sheet contains at least one coloring agent from among calcium carbonate, titanium dioxide, silica, chromium, antimony, and titanium composites in polyvinyl chloride resin.

[0011] Furthermore, in the decorative sheet according to the present invention, it is preferable that the transparent resin layer of the decorative sheet described above contains at least one ultraviolet absorber from among benzophenone-based, benzotriazole-based, triazine-based, and cyanoacrylate-based materials in polyvinyl chloride resin.

[0012] Furthermore, in the decorative sheet according to the present invention, it is preferable that the thickness of the transparent resin layer is 50 μm or more and 120 μm or less.

[0013] Furthermore, it is preferable that the decorative sheet according to the present invention includes a light-transmitting surface protective layer provided on the transparent resin layer, as described above.

[0014] Furthermore, in the decorative sheet according to the present invention, it is preferable that the surface protective layer contains at least one of a triazine-based ultraviolet absorber and a hindered amine-based light stabilizer.

[0015] On the other hand, the decorative member according to the present invention, which solves the aforementioned problems, is characterized by comprising a base material made of polyvinyl chloride resin, the above-mentioned decorative sheet disposed so that the other side of the opaque layer faces the base material, and an adhesive layer that adheres the base material and the other side of the opaque layer of the decorative sheet.

[0016] Furthermore, in the decorative member according to the present invention, it is preferable that the base material is a component of a building fixture.

[0017] Furthermore, in the decorative member according to the present invention, it is preferable that the fitting is a sash or a door.

[0018] Furthermore, the tack sheet according to the present invention, which solves the aforementioned problems, is characterized by comprising a release paper, the above-mentioned decorative sheet disposed so as to face the other side of the opaque layer toward the release paper, and an adhesive layer provided between the release paper and the other side of the opaque layer of the decorative sheet.

[0019] Furthermore, in the tack sheet according to the present invention, it is preferable that the adhesive layer has grooves on the surface facing the release paper.

[0020] Further, the cosmetic member according to the present invention for solving the above-described problems is characterized in that the above-described tack sheet from which the release paper has been peeled and the exterior material are attached via the adhesive layer.

Advantages of the Invention

[0021] According to the cosmetic sheet, tack sheet, and cosmetic member of the present invention, even if the lightness is low, the solar radiation absorption rate can be reduced, so that the heat insulation property can be enhanced. Therefore, according to the cosmetic member of the present invention, deformation and expansion of the base material can be suppressed, so that deterioration of the installation can be prevented.

Brief Description of the Drawings

[0022] [Figure 1] It is a cross-sectional view showing a schematic configuration of a main embodiment of the cosmetic sheet according to the present invention. [Figure 2] It is a cross-sectional view showing a schematic configuration of a main embodiment of the cosmetic member according to the present invention. [Figure 3] It is a cross-sectional view showing a schematic configuration of a main embodiment of the tack sheet according to the present invention.

Modes for Carrying Out the Invention

[0023] Embodiments of the cosmetic sheet, tack sheet, and cosmetic member according to the present invention will be described based on the drawings. Note that the present invention is not limited only to the following embodiments described based on the drawings, and various technical matters described in each embodiment can be combined or replaced as appropriate as needed.

[0024] [Main Embodiments] Main embodiments of the cosmetic sheet, tack sheet, and cosmetic member according to the present invention will be described based on FIGS. 1 to 3.

[0025] 〈Overall Configuration of Cosmetic Sheet〉 As shown in Figure 1, a pattern layer 12 printed with ink is provided on a colored resin layer 11, which is an opaque layer made of polyvinyl chloride (PVC) resin having opacity (light-shielding properties). On one side of the pattern layer 12 (the top surface in Figure 1), a transparent resin layer 13 made of PVC resin having light transmittance (transparency) is provided.

[0026] A light-transmitting (transparent) surface protective layer 14 is provided on one side (the top surface in Figure 1) of the transparent resin layer 13. On the surface side of the decorative sheet 10 having such layers 11 to 14, an embossed shape 10a is formed on the surface protective layer 14 and the transparent resin layer 13, so as to be in harmony with the pattern of the pattern layer 12.

[0027] <Colored resin layer 11> The colored resin layer 11 is a PVC resin containing a coloring agent, and is colored opaquely to prevent light transmission and exhibit opacity. Examples of coloring agents include calcium carbonate, titanium dioxide, silica, chromium, antimony, and titanium composites, and it is preferable that at least one of these is contained in the PVC resin.

[0028] PVC resin can be used as a recycled substrate by melting and extruding it, and it is easier to reuse by melting compared to olefin resins. As for PVC resin, not only polyvinyl chloride resin obtained by homopolymerizing vinyl chloride monomer can be used, but copolymers obtained by copolymerizing vinyl chloride monomer with a monomer copolymerizable with the vinyl chloride monomer can also be used.

[0029] Monomers copolymerizable with such vinyl chloride monomers include vinyl esters such as vinyl acetate and vinyl propionate; acrylic acid esters such as methyl acrylate and butyl acrylate; methacrylic acid esters such as methyl methacrylate and ethyl methacrylate; maleic acid esters such as butyl maleate and diethyl maleate; fumaric acid esters such as dibutyl fumarate and diethyl fumarate; vinyl ethers such as vinyl methyl ether, vinyl butyl ether, and vinyl octyl ether; vinyl cyanides such as acrylonitrile and methacrylonitrile; olefins such as ethylene, propylene, butylene, and styrene; dienes such as isoprene and butadiene; vinylidenes other than vinyl chloride, vinylidene halides, and vinyl halides; allyl phthalates such as diallyl phthalate, etc. These monomers can be used individually or in combination.

[0030] The colored resin layer 11 is preferably 50 μm or more and 120 μm or less in thickness. A thickness of less than 50 μm is undesirable because it tends to cause problems with weather resistance. A thickness exceeding 120 μm is also undesirable because it tends to cause a decrease in processability.

[0031] <Picture Layer 12> The pattern layer 12 is a binder resin mixed with organic or inorganic pigments, and can be provided so as an ink dissolved or dispersed in a medium liquid and printed on one side (the top surface in Figure 1) of the colored resin layer 11 and dried to form a pattern. The ink may also contain various additives as needed, such as fillers, tackifiers, plasticizers, stabilizers, dispersants, defoamers, leveling agents, surfactants, and drying agents.

[0032] Examples of binder resins include PVC resins such as vinyl chloride-vinyl acetate copolymer and acrylic-vinyl chloride-vinyl acetate copolymer.

[0033] As a pigment, it either does not contain a black pigment, or as a black pigment, it contains only at least one of the organic pigments, azomethine azo type and perylene type. Azomethine azo type and perylene type organic black pigments have low absorption (high transmission and reflection) of solar radiation (wavelength 300-2500 nm) (solar absorptivity As 90% or less), which can increase heat shielding properties.

[0034] Other pigments of different colors include isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium dioxide. These other pigments also have difficulty absorbing sunlight (they transmit and reflect it easily). Therefore, using these other pigments is preferable because it allows for adjusting the color tone while lowering the brightness (L* value: 45 or less) and increasing the heat-shielding properties.

[0035] Preferably, each color ink contains 15 to 110 parts by mass of the corresponding color pigment per 100 parts by mass of binder resin. If the amount is less than 15 parts by mass, it becomes difficult to lower the brightness of the surface side of the decorative sheet 10 (L* value: 45 or less), which is undesirable. If the amount exceeds 110 parts by mass, it becomes difficult to adjust the color tone, which is also undesirable.

[0036] Examples of patterns include wood grain, wood pore patterns, cork patterns, stone patterns, joint patterns, geometric patterns, and coloring. Examples of printing methods include gravure printing, offset printing, letterpress printing, flexographic printing, screen printing, and inkjet printing.

[0037] The pattern layer 12 preferably has a thickness of 1 μm or more and 10 μm or less. If the thickness is 1 μm or more, the pattern can be printed clearly. If the thickness is 10 μm or less, the wasteful use of ink can be reduced, the decrease in workability during printing can be suppressed, and manufacturing costs can be reduced.

[0038] <Transparent resin layer 13> The transparent resin layer 13 is a layer for improving weather resistance. The transparent resin layer 13 consists of a light-transmitting PVC resin film and has transparency sufficient to allow the pattern layer 12 to be seen through. It can be colorless, colored, or semi-transparent. The transparent resin layer 13 made of PVC resin is flexible and thermoplastic, resulting in good moldability and processability.

[0039] The transparent resin layer 13 is preferable if it contains an ultraviolet absorber (UVA) to improve weather resistance. Examples of UVA include benzophenone-based, benzotriazole-based, triazine-based, and cyanoacrylate-based UVA. Examples of benzophenone-based UVA include octabenzone, its modified products, polymers, and derivatives.

[0040] Examples of benzotriazole-based UVA include 2-(2-hydroxy-5-t-butylphenyl)-2H-benzotriazole, 2-(5-methyl-2-hydroxyphenyl)benzotriazole, 2-[2-hydroxy-3,5-bis(α,α-dimethylbenzyl)phenyl]-2H-benzotriazole, 2-(3,5-di-t-butyl-2-hydroxyphenyl)benzotriazole, 2-(3-t-butyl-5-methyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3,5-di-t-butyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3,5-di-t-amyl-2-hydroxyphenyl)benzotriazole, 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole, and mixtures, modified products, polymers, and derivatives thereof.

[0041] Examples of triazine-based UVA include hydroxyphenyltriazine-based UVA compounds such as 2-(4,6-diphenyl-1,3,5-triazine-2-yl)-5-[(hexyl)oxy]-phenol, 2-[4-[(2-hydroxy-3-dodecyloxypropyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[4-[(2-hydroxy-3-tridecyloxypropyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, and 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-isooctyloxyphenyl)-s-triazine, as well as mixtures, modified products, polymers, and derivatives thereof.

[0042] Triazine-based UVA is preferable because its triazine skeleton, compared to the skeletons of benzotriazole-based and benzophenone-based UVA, is more likely to suppress bleeding and is chemically stable, thus maintaining its UV absorption capacity over long periods. Therefore, triazine-based UVA can suppress discoloration even when used outdoors for extended periods, making it suitable for outdoor building components such as window frames and doors.

[0043] The transparent resin layer 13 preferably contains UVA in an amount of 0.3 parts by mass to 1.0 part by mass per 100 parts by mass of PVC resin, and more preferably 0.5 parts by mass to 0.8 parts by mass. This ensures that the weather resistance of the decorative sheet 10 is reliably improved, bleed-out is suppressed, and adverse effects on other physical properties of the transparent resin layer 13 are minimized.

[0044] The transparent resin layer 13 is preferable if it further contains a light stabilizer, as this can further improve its weather resistance. Examples of light stabilizers include hindered amine light stabilizers (HALS).

[0045] Examples of HALS include 4-benzoyloxy-2,2,6,6-tetramethylpiperidine, 1,2,2,6,6-pentamethyl-4-piperidinyl (meth)acrylate, bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, and methyl(1,2,2,6,6-penta Examples include methyl-4-piperidinyl) sebacate, 2,4-bis[N-butyl-N-(1-cyclohexyloxy-2,2,6,6-tetramethyl-4-piperidinyl)amino]-6-(2-hydroxyethylamine)-1,3,5-triazine), tetrakis(1,2,2,6,6-pentamethyl-4-piperidyl)-1,2,3,4-butanetetracarboxylate, bis-(1,2,2,6,6-pentamethyl-4-piperidyl)-2-(3,5-di-t-butyl-4-hydroxybenzyl)-2-n-butylmalonate, etc. Among these, examples include those derived from decandioic acid (sebacic acid), such as bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, and methyl(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate.

[0046] The transparent resin layer 13 preferably contains HALS in an amount of 0.5 parts by mass to 10 parts by mass per 100 parts by mass of PVC resin, more preferably 1 part by mass to 8 parts by mass, and even more preferably 3 parts by mass to 6 parts by mass. This ensures that the weather resistance of the decorative sheet 10 is reliably improved, bleed-out is suppressed, and adverse effects on other physical properties of the transparent resin layer 13 are minimized.

[0047] The transparent resin layer 13 is preferably 50 μm or more and 120 μm or less in thickness, and more preferably 60 μm or more and 100 μm or less. A thickness of less than 50 μm is undesirable because it tends to cause problems with weather resistance. A thickness exceeding 120 μm is undesirable because it tends to cause a decrease in processability.

[0048] <Surface protective layer 14> The surface protection layer 14 is provided to impart functions such as weather resistance, scratch resistance, and stain resistance, and is colorless transparent, colored transparent, or semi-transparent, having transparency sufficient to allow the pattern layer 12 to be seen through. The surface protection layer 14 is provided by dissolving or dispersing a resin material in a medium liquid, coating it on the transparent resin layer 13 (top surface in Figure 1), and drying it.

[0049] The surface protective layer 14 may, if necessary, contain various additives such as UVA and HALS as described above, as well as heat stabilizers, anti-blocking agents, catalyst scavengers, colorants, light scattering agents, gloss modifiers, etc. In particular, it is preferable to contain at least one of triazine-based UVA and hindered amine-based HALS, and it is very preferable to contain both.

[0050] Examples of resin materials include urethane-based, acrylic-based, acrylic-silicone-based, fluorine-based, and epoxy-based resins.

[0051] The surface protective layer 14 preferably contains UVA in an amount of 1 to 30 parts by mass per 100 parts by mass of resin material. This reliably improves the weather resistance of the decorative sheet 10, suppresses bleed-out, and further minimizes adverse effects on other physical properties of the surface protective layer 14.

[0052] The surface protective layer 14 preferably contains HALS in an amount of 1 to 30 parts by mass per 100 parts by mass of resin material. This reliably improves the weather resistance of the decorative sheet 10, suppresses bleed-out, and further minimizes adverse effects on other physical properties of the surface protective layer 14.

[0053] The surface protective layer 14 can be provided by various coating methods such as gravure coating, reverse coating, gravure reverse coating, die coating, and flow coating, and it can also be provided by a printing method similar to that of the pattern layer 12.

[0054] The surface protective layer 14 has a thickness of 2 μm or more and 20 μm or less, i.e., a dry solid content of 2 g / m². 2 More than 20g / m 2 Preferably, the following conditions are met: a thickness of 2 μm or more, i.e., a dry solid content of 2 g / m². 2 The above conditions can improve weather resistance. This applies when the thickness is 20 μm or less, i.e., when the dry solids content is 20 g / m². 2 The following conditions can be met to suppress a decrease in processability, reduce the wasteful use of resin materials, and lower manufacturing costs.

[0055] <Overall composition of decorative components> As shown in Figure 2, a decorative sheet 10 is placed on the surface (top surface in Figure 2) of a component 101 made of PVC resin, such as a sash or door, with the other side of the colored resin layer 11 facing the other side (bottom surface in Figure 2). A PVC resin adhesive layer 102 is provided between the colored resin layer 11 of the decorative sheet 10 and the surface of the component 101. In other words, the decorative component, the joinery 100, is formed by bonding the colored resin layer 11 of the decorative sheet 10 to the surface of the component 101 via the adhesive layer 102.

[0056] <Component 101> The component material 101 is a building component 100 such as a sash or door, and is made of PVC resin.

[0057] <Adhesive layer 102> The adhesive layer 102 is applied to the decorative sheet 10 as an adhesive in which an adhesive resin is dissolved or dispersed in a medium liquid, and then adhered to the component material 101 and dried, thereby bonding the decorative sheet 10 to the component material 101.

[0058] Examples of adhesive resins include urethane-based, acrylic-based, polyester-based, vinyl chloride-vinyl acetate copolymer, and acrylic-vinyl chloride-vinyl acetate copolymer. In particular, PVC resin-based materials such as vinyl chloride-vinyl acetate copolymer and acrylic-vinyl chloride-vinyl acetate copolymer are highly preferred from the viewpoint of recyclability.

[0059] The adhesive may contain various additives as needed, such as fillers, tackifiers, plasticizers, stabilizers, dispersants, defoamers, leveling agents, surfactants, and drying agents. The adhesive layer 102 preferably has a thickness of 0.5 μm to 6 μm. The adhesive layer 102 can be provided by various coating methods, such as gravure coating, reverse coating, gravure reverse coating, die coating, and flow coating.

[0060] <Method for manufacturing decorative sheet 10 and building fixture 100> The manufacturing method of the decorative sheet 10 and the joinery 100 according to this embodiment will be described below. First, a colored resin layer 11 is prepared by mixing a coloring agent with PVC resin and molding it into a sheet. Next, a pattern layer 12 is formed by printing a pattern onto the colored resin layer 11 using an ink for the pattern, which is made by mixing a binder resin and the aforementioned pigment in a medium liquid, and then drying and curing it.

[0061] Next, a transparent resin layer 13 having an embossed surface is formed by mixing additives such as UVA and HALS into a transparent PVC resin, extruding it into a sheet shape, and then heat-laminating it onto the pattern layer 12 while forming an embossed surface 10a using an embossing plate or the like. Subsequently, a liquid mixture of the transparent resin material and additives such as UVA and HALS in a medium liquid is applied to the transparent resin layer 13 and dried and cured to form a surface protective layer 14 having an embossed surface 10a. Through the above steps, a decorative sheet 10 can be obtained.

[0062] Then, by mixing an adhesive resin and various additives in a medium liquid, applying the adhesive to the colored resin layer 11 of the decorative sheet 10 to form an adhesive layer 102, and then adhering it to the constituent material 101 and allowing it to dry and harden, the joinery 100 can be obtained.

[0063] <Effects> In the decorative sheet 10 according to this embodiment, as previously described, the L* value on the surface side is 45 or less (L* ≤ 45), and the pattern layer 12 does not contain black pigment, or contains only at least one organic pigment of the azomethine azo type and perylene type as the black pigment. Therefore, even with low brightness, the solar absorptance As can be reduced (90% or less), and the heat shielding properties can be improved.

[0064] Therefore, according to the joinery 100 of this embodiment, even if the decorative sheet 10 has low brightness, the heat-shielding properties can be enhanced, so deformation and expansion of the constituent material 101 can be suppressed, and a deterioration in the fit can be prevented.

[0065] Furthermore, the pattern layer 12 contains at least one pigment from among isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium dioxide. Therefore, the brightness of the surface side of the decorative sheet 10 can be lowered (L*≦45) while the heat-shielding properties can be improved and the color tone can be adjusted, thereby preventing deterioration of the building structure while improving the design.

[0066] Furthermore, since the colored resin layer 11 and the transparent resin layer 13 are made of PVC resin, and the binder resin of the patterned layer 12 is also PVC resin-based, the recyclability of the building component 100, which has a decorative sheet 10 attached to a PVC resin component 101, can be greatly improved, thereby reducing the environmental impact.

[0067] <Overall structure of the tack sheet> As shown in Figure 3(a), the decorative sheet 10 is arranged on the surface of the release paper 201 (upper side in Figure 3(a)) with the other side of the colored resin layer 11 (lower side in Figure 3(a)) facing it. Between the colored resin layer 11 of the decorative sheet 10 and the surface of the release paper 201, an adhesive layer 202 made of, for example, PVC resin is provided.

[0068] <Release paper 201> The release paper 201 is a component of the tack sheet 200 and is a sheet-like component that is attached to the adhesive layer 202. As the release paper 201, for example, a laminate in which a release layer mainly composed of silicone resin is laminated on the surface of a substrate such as a plastic film or paper, a polyolefin resin film such as polyethylene film, or a polyethylene terephthalate resin film can be used.

[0069] <Adhesive layer 202> The adhesive layer 202 can be provided by applying and drying an adhesive, which is an adhesive resin dissolved or dispersed in a solvent, onto the decorative sheet 10. Alternatively, it can be provided by applying an adhesive resin using a hot melt method. Examples of adhesive resins include urethane-based, acrylic-based, silicone-based, and rubber-based resins.

[0070] The adhesive may contain various additives as needed, such as fillers, plasticizers, stabilizers, dispersants, defoamers, leveling agents, surfactants, and drying agents.

[0071] In this embodiment, the adhesive layer 202 may not have the groove portion 202a described later, as shown in Figure 3(a), or it may have the groove portion 202a, as shown in Figure 3(b). As shown in Figure 3(a), if the groove portion 202a is not provided, the adhesive layer 202 is preferably 20 μm or thicker after drying following the application of the adhesive composition, in order to provide workability and sufficient adhesive strength.

[0072] The adhesive layer 202 can be provided by various coating methods, such as gravure coating, reverse coating, gravure reverse coating, die coating, and flow coating.

[0073] <Groove 202a> As shown in Figure 3(b), when a groove 202a is provided, the depth of the deepest part of the groove 202a is preferably 3 μm or more and 10 μm or less, and more preferably 5 μm or more and 8 μm or less. When it is 3 μm or more, the air trapped between the adhesive layer 202 and the adherend can be suitably released, improving the air release performance. On the other hand, when it is 10 μm or less, the impact resistance of the tack sheet 200 is improved. As for the cross-sectional shape of the groove 202a, for example, a V-shape, U-shape, rectangular shape, or trapezoidal shape can be adopted. The volume occupied by the groove 202a is, for example, 1 × 10 per area of ​​a circle with a diameter of 500 μm of adhesive layer 202. 3 μm 3 That concludes this section.

[0074] Furthermore, the thickness of the thickest part of the groove 202a, that is, the thickness of the part where there is no groove 202a, is preferably 20 μm or more after the adhesive composition has been applied and dried, in order to balance the thickness with the release paper 201 described later, while providing workability and sufficient adhesive strength. Furthermore, the depth of the deepest part of the groove 202a of the adhesive layer 202 is preferably 3% to 50% of the thickness of the thickest part of the adhesive layer 202, and more preferably 10% to 50%, from the viewpoint of design and air venting performance. When it is 3% or more, air trapped between the adhesive layer 202 and the adherend can be released, improving air venting performance. On the other hand, when it is 50% or less, no irregularities of guide channels are formed on the surface of the decorative sheet 10 (they are not visible), improving design.

[0075] Each groove 202a either terminates at the outer periphery of the adhesive layer 202 or communicates with other grooves 202a that terminate at the outer periphery of the adhesive layer 202. This allows air trapped between the adhesive layer 202 and the adherend to escape when the decorative sheet 10 is attached to the adherend. After the air has escaped, the bottom of the groove 202a is brought into close contact with the surface of the adherend, causing the groove 202a to disappear and improving the aesthetic appearance.

[0076] Furthermore, the length (width) of one side of the adhesive portion provided between grooves 202a and other grooves 202a in the adhesive layer 202 is preferably 2 mm or more and 30 mm or less, and preferably 10 mm or more and 20 mm or less.

[0077] The groove 202a is preferably formed, for example, by attaching a release paper 201 having irregularities for forming the groove 202a to the adhesive layer 202. Alternatively, for example, the groove 202a can be formed by uniformly applying the adhesive constituting the adhesive layer 202 to the other side of the colored resin layer 11 (the lower side in Figure 3(b)) and then pressing it using a mold (for example, a metal mold) having irregularities for forming the groove 202a.

[0078] <Resin protrusion 201a> As shown in Figure 3(b), the resin protrusion 201a is a protrusion formed on the adhesive layer 202 side of the release paper 201 that fits into the groove 202a. The material constituting the resin protrusion 201a is not particularly limited as long as it has strong adhesion to the release paper 201 and can print a pattern with continuous openings on the release paper 201. Furthermore, the material constituting the resin protrusion 201a should be a material that can maintain the resin protrusion 201a for a long period of time without being affected by solvents such as acrylic or toluene in the adhesive composition constituting the adhesive layer 202. For example, a polyurethane resin mixed with a solvent such as methyl ethyl ketone can be used as the material constituting the resin protrusion 201a.

[0079] As a method for forming the resin protrusions 201a, for example, a method of forming the resin protrusions 201a by coating with gravure printing can be employed. Other printing methods such as flexographic printing, offset printing, screen printing, and rotary printing can also be used. Furthermore, a method of pressing the resin protrusions 201a using a roller-shaped mold, or a method of forming the resin protrusions 201a on the surface of a plastic film or the like using a roller-shaped mold and a fluid resin composition can be employed.

[0080] The resin protrusion 201a either terminates at the outer periphery of the release paper 201, in accordance with the shape of the groove 202a described above, or communicates with other resin protrusions 201a that terminate at the outer periphery of the release paper 201. The resin protrusions 201a are formed, for example, in a grid pattern in a plan view. When the resin protrusions 201a are formed in a grid pattern, it is preferable that the resin protrusions 201a are arranged parallel to the longitudinal direction of the release paper 201 at an inclination angle of 30° to 60° in a plan view. In other words, it is preferable that the resin protrusions 201a are formed in a grid pattern with first protrusions extending in a first direction and second protrusions extending in a second direction intersecting (orthogonal to) the first direction, and that either the first direction or the second direction is inclined at an angle of 30° to 60° with respect to the longitudinal direction of the release paper 201. Furthermore, the width of the resin protrusion 201a should preferably be between 1 mm and 15 mm.

[0081] If the resin protrusions 201a are formed in a grid pattern, the grooves 202a in the adhesive layer 202 are also formed in a grid pattern. As a result, the adhesive portions between grooves 202a and other grooves 202a in the adhesive layer 202 are formed as independent polygons (for example, quadrilaterals). With this configuration, the decorative sheet 10 can be easily adhered to the substrate without allowing air bubbles to enter. In addition, the resin protrusions 201a may be formed in a stripe shape, a T-shape, or the like.

[0082] The thickness of the resin protrusions 201a is preferably 3 μm to 10 μm, and more preferably 5 μm to 8 μm, in order to prevent unevenness from occurring on the surface of the decorative sheet 10 due to the guide channels for removing air bubbles. When the thickness is 3 μm or more, air trapped between the adhesive layer 202 and the adherend can be suitably released, improving air venting performance. On the other hand, when the thickness is 10 μm or less, the unevenness of the guide channels is not visible on the surface of the decorative sheet 10, improving the aesthetic appearance.

[0083] <Method for manufacturing tack sheet 200 and joinery> The method for manufacturing the tack sheet 200 according to this embodiment will be described next. First, a colored resin layer 11 is prepared by mixing a coloring agent with PVC resin and molding it into a sheet. Next, a pattern layer 12 is formed by printing a pattern onto the colored resin layer 11 using an ink for the pattern, which is made by mixing a binder resin and the aforementioned pigment in a medium liquid, and then drying and curing it.

[0084] Next, a transparent resin layer 13 having an embossed surface is formed by mixing additives such as UVA and HALS into a transparent PVC resin, extruding it into a sheet shape, and then heat-laminating it onto the pattern layer 12 while forming an embossed surface 10a using an embossing plate or the like. Subsequently, a liquid mixture of the transparent resin material and additives such as UVA and HALS in a medium liquid is applied to the transparent resin layer 13 and dried and cured to form a surface protective layer 14 having an embossed surface 10a. Through the above steps, a decorative sheet 10 can be obtained.

[0085] Then, an adhesive, which was prepared by mixing an adhesive resin and various additives in a medium liquid, was applied to the colored resin layer 11 of the decorative sheet 10 to form an adhesive layer 202.

[0086] As a release sheet (release paper 201), for example, a sheet is prepared by laminating a release layer on the upper layer of a resin sheet and laminating a paper layer on the lower layer of the resin sheet. Then, a resin for forming resin protrusions is applied to the surface of the release sheet by gravure printing or the like to form resin protrusions 201a. Next, a release sheet is pressure-bonded to the adhesive layer 202, forming multiple grooves 202a on the back surface of the adhesive layer 202. This allows you to obtain a tack sheet 200.

[0087] The method of using the tack sheet 200 according to this embodiment, that is, the method of manufacturing a building component using the tack sheet 200, will be described next. First, the release paper 201 is peeled off the tack sheet 200. If the release paper 201 has resin protrusions 201a, the release paper 201 and the resin protrusions 201a are peeled off simultaneously from the adhesive layer 202. Next, the exposed adhesive layer 202 is bonded to the surface of a component material such as exterior material, which is the target object, to manufacture decorative components (not shown) such as building fixtures (sashes and doors).

[0088] <Effects> In the decorative sheet 10 constituting the tack sheet 200 according to this embodiment, as described above, the L* value on the surface side is 45 or less (L* ≤ 45), and the pattern layer 12 does not contain black pigment, or contains only at least one organic pigment of the azomethine azo type and perylene type as black pigment. Therefore, even with low brightness, the solar absorptance As can be reduced (90% or less), and the heat shielding properties can be improved.

[0089] Therefore, with decorative components (not shown) such as building fixtures (sashes and doors) manufactured using the tack sheet 200 according to this embodiment, even a decorative sheet 10 with low brightness can have its heat-shielding properties enhanced, thereby suppressing deformation and expansion of components such as exterior materials and preventing deterioration of the building's structure.

[0090] Furthermore, the pattern layer 12 contains at least one pigment from among isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium dioxide. Therefore, the brightness of the surface side of the decorative sheet 10 can be lowered (L*≦45) while the heat-shielding properties can be improved and the color tone can be adjusted, thereby preventing deterioration of the building structure while improving the design.

[0091] Furthermore, since the colored resin layer 11 and the transparent resin layer 13 are made of PVC resin, and the binder resin of the patterned layer 12 is also PVC resin-based, the recyclability of decorative components such as building fixtures, which are made by attaching a decorative sheet 10 to a PVC resin component, can be greatly improved, thereby reducing the environmental burden.

[0092] Furthermore, with the tack sheet 200 according to this embodiment, since the adhesive layer 202 is already provided, when attaching the decorative sheet 10 to an object such as an exterior material, it can be attached simply by peeling off the release paper 201. Therefore, there is no need to apply an adhesive separately, making the attachment work even easier.

[0093] Furthermore, in the embodiment of the tack sheet 200 in which grooves 202a are formed on the side of the release paper 201 of the adhesive layer 202, when the decorative sheet 10 is attached to an object such as an exterior material, air can easily escape through the grooves 202a. As a result, the decorative sheet 10 can be easily handled, and the air removal process during attachment can also be easily performed, making the attachment of the decorative sheet 10 even easier.

[0094] [Other embodiments] In the embodiments described above, a decorative sheet 10 and a building component 100 using the same were described, in which a pattern layer 12 was formed using an ink containing a PVC resin-based binder resin. However, the present invention is not limited to this. In other embodiments, for example, it is also possible to form the pattern layer using an ink containing a binder resin such as an acrylic resin with high adhesion to PVC resin.

[0095] However, as in the embodiment described above, if the decorative sheet 10 has a pattern layer 12 formed using an ink made of PVC resin binder resin, it is highly preferable because it can further improve the recyclability of the building components 100 that are attached to sashes, doors, etc., made of PVC resin components 101.

[0096] Furthermore, while the above-described embodiment described a decorative sheet 10 and a building component 100 using the same, in which a colored resin layer 11 made of PVC resin mixed with a coloring agent is applied as an opaque layer, the present invention is not limited to this. As another embodiment, for example, it is also possible to use a decorative sheet in which an opaque layer (thickness: 1 μm to 10 μm) made of opaque printing ink or paint containing a large amount of opaque pigments such as titanium dioxide or iron oxide is applied as an opaque layer instead of the colored resin layer 11.

[0097] Furthermore, in other embodiments, for example, a decorative sheet and a decorative component utilizing the same can be provided, which further include a gloss adjustment layer on the surface protective layer 14 to adjust the gloss. In this case, it is highly preferable that the gloss adjustment layer be provided in accordance with the pattern of the embossing 10a and the pattern layer 12, as this can further enhance the design.

[0098] Furthermore, although the above-described embodiment described a case of a decorative sheet 10 with an embossed 10a and a building component 100 using the same, the present invention is not limited to this. In other embodiments, for example, depending on the pattern of the pattern layer 12, it is also possible to use a decorative sheet without the embossed 10a and a decorative component using the same.

[0099] Furthermore, although the embodiments described above described a decorative sheet 10 provided with a surface protective layer 14 and a building component 100 using the same, the present invention is not limited thereto. As another embodiment, for example, depending on the conditions and environment in which it is used, it is also possible to provide a decorative sheet without the surface protective layer 14 and a decorative component using the same.

[0100] Furthermore, while the above-described embodiment described a case in which a decorative sheet 10 is attached to a component 101 such as a sash or door made of PVC resin, the present invention is not limited to this. In other embodiments, for example, a decorative member in which the decorative sheet according to the present invention is attached to a PVC resin base material can be obtained to obtain the same effects as in the above-described embodiment. [Examples]

[0101] Examples of the decorative sheet and decorative member according to the present invention will be described in detail. However, the present invention is not limited to the following examples described in detail.

[0102] [Preparation of test specimens and comparison specimens] <Test specimen 1> A colored resin layer (80 μm thick) was formed by mixing a coloring agent with PVC resin and molding it into a sheet. A pattern layer (3 μm thick) was then formed by printing a design onto this colored resin layer using the PVC printing ink described below and allowing it to dry and harden. Subsequently, a transparent resin layer (80 μm thick) was formed by mixing 0.5 parts by mass of triazine-based UVA with 100 parts by mass of transparent PVC resin and heat-laminating it onto the pattern layer while extruding it into a sheet.

[0103] Printing ink for PVC {Black ink} • Binder resin: A mixed resin of acrylic resin and PVC-vinyl acetate copolymer resin. Pigment: Perylene Black 40 parts by mass per 100 parts by mass of binder resin

[0104] {Cyan} • Binder resin: Same as black ink Pigment: Phthalocyanine 40 parts by mass per 100 parts by mass of binder resin

[0105] {Magenta} • Binder resin: Same as black ink Pigment: diketopyrrolopyrrole 40 parts by mass per 100 parts by mass of binder resin

[0106] {Yellow} • Binder resin: Same as black ink Pigment: Isoindlinone 40 parts by mass per 100 parts by mass of binder resin

[0107] Next, a solution prepared by mixing the main agent and curing agent listed below with UVA and HALS in a solvent was applied to the transparent resin layer in the amounts specified below and dried to cure, thereby forming a surface protective layer and obtaining the decorative sheet of test specimen 1. Then, a urethane resin adhesive was applied to the colored resin layer of the decorative sheet to form an adhesive layer, and after bonding it to a PVC substrate and drying to cure, test specimen 1 of the decorative component was prepared.

[0108] {Surface protective layer} • Main component: 90% by mass of copolymer of methyl methacrylate (95) and 2-hydroxyethyl methacrylate (5) • Hardener: Mitsui Chemicals, Inc. "Takenate (registered trademark) D170 (product number)" 10% by mass • UVA: BASF Japan Ltd. "Chinubin (registered trademark) 479 (product number)" 9 parts by mass per 100 parts by mass of main agent and hardener HALS: BASF Japan Ltd. "Chinubin (registered trademark) 123 (product number)" 1 part by mass per 100 parts by mass of main agent and hardener • Solvent: Ethyl acetate 240 parts by mass per 100 parts by mass of main agent and hardener ·Coating amount: 3g / m 2 (when dry)

[0109] <Test specimen 2> Test specimen 2 of the decorative component was prepared under the same conditions as test specimen 1, except that the thickness of the transparent resin layer was set to 100 μm.

[0110] <Test specimen 3> Test specimen 3 of the decorative component was prepared under the same conditions as test specimen 1, except that the thickness of the transparent resin layer was set to 120 μm.

[0111] <Test specimen 4> Test specimen 4 of the decorative component was prepared under the same conditions as test specimen 1, except that the thickness of the transparent resin layer was set to 60 μm.

[0112] <Test specimen 5> Test specimen 5 of the decorative component was prepared under the same conditions as test specimen 1, except that the thickness of the transparent resin layer was set to 50 μm.

[0113] <Test specimen 6> Test specimen 6 of the decorative component was prepared under the same conditions as test specimen 1, except that the thickness of the transparent resin layer was set to 130 μm.

[0114] <Test specimen 7> Test specimen 7 of the decorative component was prepared under the same conditions as test specimen 1, except that the thickness of the transparent resin layer was set to 30 μm.

[0115] <Test specimen 8> Test specimen 8 of the decorative component was prepared under the same conditions as test specimen 1, except that the addition of UVA to the transparent resin layer was omitted.

[0116] <Test specimen 9> Test specimen 9 of the decorative component was prepared under the same conditions as test specimen 1, except that the thickness of the transparent resin layer was set to 70 μm and the pigment of the black ink was azomethine azo type.

[0117] <Test specimen 10> Test specimen 10 of the decorative component was prepared under the same conditions as test specimen 1, except that the black ink was omitted.

[0118] <Comparative Object 1> A comparative specimen 1 of the decorative component was prepared under the same conditions as specimen 1, except that the pigment for the black ink was carbon black.

[0119] <Comparison 2> A comparative specimen 2 of the decorative component was prepared under the same conditions as specimen 7, except that the pigment for the black ink was carbon black.

[0120] <Comparative Object 3> A comparative specimen 3 of the decorative component was prepared under the same conditions as test specimen 8, except that the pigment for the black ink was carbon black.

[0121] <Comparative Object 4> A comparative specimen 4 of the decorative component was prepared under the same conditions as test specimen 6, except that the pigment for the black ink was carbon black.

[0122] <Comparative Object 5> A comparative specimen 5 of the decorative component was prepared under the same conditions as test specimen 6, except that carbon black was used as the pigment for the black ink and the addition of UVA to the transparent resin layer was omitted.

[0123] [Exam Content] <Solar Absorption Rate> For test specimens 1-10 and comparison specimens 1-5, the solar absorptivity As was determined in accordance with the Japanese Industrial Standard (JIS) "R 3106" (2019). Specifically, the absorptivity As of light (solar radiation) with wavelengths of 300-2500 nm was measured before and after the weathering test (details described below) using a Shimadzu Corporation UV-3600i plus (model number).

[0124] <Brightness L* value> For test specimens 1-10 and comparison specimens 1-5, the lightness L* values ​​were determined in accordance with the Japanese Industrial Standard (JIS) "Z 8781-4". Specifically, the lightness L* values ​​before and after the weather resistance test (details described below) were measured using a Konica Minolta colorimeter "CR-400 (model number)" and a CIE standard light source D65.

[0125] <Color difference ΔE value> For test specimens 1-10 and comparison specimens 1-5, the color difference ΔE values ​​were determined in accordance with JIS "Z 8781-4". Specifically, the color difference ΔE values ​​before and after the weather resistance test (details described below) were determined using a Konica Minolta colorimeter "CR-400 (product number)" and the CIE standard light source D65.

[0126] Weather resistance test Test specimens 1-10 and comparison specimens 1-5 were subjected to UV light irradiance of 65 mW / cm² using the "Metal Weather® KW-R7TP-A (product number)" ultra-accelerated weathering tester manufactured by Daipla Wintes Co., Ltd. 2 A weather resistance test was conducted for 504 hours, with the black panel temperature set to 63°C, consisting of repeated cycles of 20 hours of UV light irradiation and 4 hours of condensation.

[0127] Processability Test After wrapping the plate-shaped adherends of test specimens 1-10 and comparison specimens 1-5, it was checked whether cracks or other defects had occurred in the portions of test specimens 1-10 and comparison specimens 1-5 that were bent at approximately a right angle (90 degrees).

[0128] [Evaluation details] <Heat shielding performance> If the solar absorptance As before and after the weathering test was 90% or less (As ≤ 90%) in both cases, it was marked as "○ (sufficient)". If either one exceeded 90% (As > 90%), it was marked as "× (insufficient)".

[0129] <Weather resistance> If the lightness L* value was 45 or less (L*≦45) and the color difference ΔE value was less than 3 (ΔE<3) before and after the weather resistance test, it was marked as "○ (sufficient)". If the lightness L* value was greater than 45 (L*>45) or the color difference ΔE value was 3 or greater (ΔE≧3), it was marked as "× (insufficient)".

[0130] <Processing performance> If the decorative sheet was less prone to cracking (less likely to develop cracks, etc.) and easy to handle during the wrapping process, it was marked as "○ (sufficient)". If the decorative sheet cracked easily (more likely to develop cracks, etc.) and difficult to handle (requiring careful handling), it was marked as "× (insufficient)".

[0131] [Evaluation Results] The evaluation results are shown in Table 1 below.

[0132] [Table 1]

[0133] As can be seen from Table 1, in comparative samples 1 to 5, which used carbon black as the black pigment, the solar absorptivity As exceeded 90% (As > 90%), resulting in a heat shielding performance of "× (insufficient)". Furthermore, in comparative sample 2, which had a transparent resin layer with a thickness of 30 μm, and comparative samples 3 and 5, which did not contain UVA, the color difference ΔE was 3 or more (ΔE ≥ 3), resulting in a weather resistance performance of "× (insufficient)". However, in comparative sample 1, which had a thickness of 80 μm and contained UVA, the color difference ΔE was less than 3 (ΔE < 3), resulting in a weather resistance performance of "○ (sufficient)". In addition, in comparative sample 4, which had a thickness of 130 μm and contained UVA, the color difference ΔE was less than 3 (ΔE < 3), resulting in a weather resistance performance of "○ (sufficient)".

[0134] In contrast, in test specimens 1-9, which used perylene black or azomethine azo as the black pigment, and test specimen 10, which did not contain a black pigment, the solar absorptivity As was 90% or less (As ≤ 90%), and the heat shielding performance was "○ (sufficient)". However, in test specimen 7, which had a transparent resin layer thickness of 30 μm, and test specimen 8, which did not contain UVA, the color difference ΔE was 3 or more (ΔE ≥ 3), resulting in a "× (insufficient)" weather resistance performance. On the other hand, in test specimens 1-5, 9, and 10, which had a thickness of 50 μm to 120 μm and contained UVA, the color difference ΔE was less than 3 (ΔE < 3), and the weather resistance performance was also "○ (sufficient)".

[0135] Furthermore, as can be seen from Table 1, in test specimen 6 and comparison specimens 4-5, where the transparent resin layer had a thickness of 130 μm, the processing performance was "× (insufficient)". In contrast, for test specimens 1-5, 8-10 and comparative specimens 1 and 3, where the transparent resin layer was between 50 μm and 120 μm in thickness, the processing performance was rated as "○ (sufficient)". Furthermore, for test specimen 7 and comparative specimen 2, where the transparent resin layer was 30 μm thick, the processing performance was also rated as "○ (sufficient)".

[0136] Therefore, the effects of the decorative sheet and decorative component according to the present invention could be confirmed.

[0137] Furthermore, for example, the present invention can take the following configuration. (1) An opaque layer with concealing properties, A pattern layer provided on one side of the opaque layer, A transparent resin layer having light transmission is provided on the aforementioned pattern layer, A decorative sheet equipped with, On the surface side, the L* value is 45 or less. The aforementioned pattern layer either does not contain black pigment, or contains only at least one organic pigment, either azomethine azo-based or perylene-based, as the black pigment. A decorative sheet characterized by the following features. (2) The aforementioned pattern layer contains at least one pigment from among isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium dioxide. The decorative sheet described in (1) above, characterized in that it is a decorative sheet. (3) The opaque layer is made of polyvinyl chloride resin and contains at least one coloring agent selected from calcium carbonate, titanium dioxide, silica, chromium, antimony, and titanium composites. The decorative sheet according to (1) or (2) above, characterized in that (4) The transparent resin layer is a polyvinyl chloride resin containing at least one ultraviolet absorber from among benzophenone-based, benzotriazole-based, triazine-based, and cyanoacrylate-based materials. A decorative sheet as described in any one of the above items (1) to (3), characterized in that... (5) The transparent resin layer has a thickness of 50 μm or more and 120 μm or less. A decorative sheet according to any one of the above items (1) to (4), characterized in that it is a decorative sheet. (6) The transparent resin layer is provided with a light-transmitting surface protective layer. A decorative sheet according to any one of the above items (1) to (5), characterized in that it is a decorative sheet. (7) The surface protective layer contains at least one of a triazine-based ultraviolet absorber and a hindered amine-based light stabilizer. The decorative sheet described in (6) above, characterized in that it is a decorative sheet. (8) A base material made of polyvinyl chloride resin, A decorative sheet according to any one of the above items (1) to (7) is arranged such that the other side of the opaque layer faces the substrate, An adhesive layer that adheres the substrate and the other side of the opaque layer of the decorative sheet, A decorative component characterized by having the following features. (9) The aforementioned base material is a component of the joinery. The decorative member described in (8) above, characterized in that it is a decorative member. (10) The aforementioned fixture is a sash or a door. The decorative member described in (9) above, characterized in that (11) Release paper and A decorative sheet according to any one of the above items (1) to (7), which is arranged so that the other side of the opaque layer faces the release paper, An adhesive layer is provided between the release paper and the other side of the opaque layer of the decorative sheet, A tack sheet characterized by having the following features. (12) The adhesive layer has grooves on the side facing the release paper. The tack sheet as described in (11) above, characterized by the above. (13) The tack sheet described in (11) above, from which the release paper has been peeled off, and the exterior material are attached to each other via the adhesive. A decorative component characterized by the following features. [Industrial applicability]

[0138] The decorative sheet, tack sheet, and decorative component according to the present invention can reduce solar radiation absorption even at low brightness levels and enhance heat shielding properties, making them extremely useful in various industries, including the construction industry. [Explanation of symbols]

[0139] 10 Decorative sheets 10a Embossed 11 Colored resin layer 12 Image Layers 13 Transparent resin layer 14 Surface protective layer 100 Doors and windows (decorative components) 101 Component material (base material) 102 Adhesive layer 200 Tack Sheets 201 Release paper 201a Resin protrusion 202 Adhesive layer 202a Groove

Claims

1. An opaque layer with concealing properties, A pattern layer provided on one side of the opaque layer, A transparent resin layer having light transmission is provided on the aforementioned pattern layer, A decorative sheet equipped with, On the surface side, the L* value is 45 or less. The aforementioned pattern layer either does not contain black pigment, or contains only at least one organic pigment, either azomethine azo-based or perylene-based, as the black pigment. A decorative sheet characterized by the following features.

2. The aforementioned pattern layer contains at least one pigment from among isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium dioxide. The decorative sheet according to feature 1.

3. The opaque layer is made of polyvinyl chloride resin and contains at least one coloring agent selected from calcium carbonate, titanium dioxide, silica, chromium, antimony, and titanium composites. The decorative sheet according to feature 1.

4. The transparent resin layer is a polyvinyl chloride resin containing at least one ultraviolet absorber from among benzophenone-based, benzotriazole-based, triazine-based, and cyanoacrylate-based materials. The decorative sheet according to feature 1.

5. The transparent resin layer has a thickness of 50 μm or more and 120 μm or less. The decorative sheet according to feature 1.

6. The transparent resin layer is provided with a light-transmitting surface protective layer. The decorative sheet according to feature 1.

7. The surface protective layer contains at least one of a triazine-based ultraviolet absorber and a hindered amine-based light stabilizer. The decorative sheet according to feature 6.

8. A base material made of polyvinyl chloride resin, A decorative sheet according to any one of claims 1 to 7, disposed such that the other side of the opaque layer faces the substrate, An adhesive layer that adheres the substrate and the other side of the opaque layer of the decorative sheet, A decorative component characterized by having the following features.

9. The aforementioned base material is a component of the joinery. The decorative member according to feature 8.

10. The aforementioned fixture is a sash or a door. The decorative member according to feature 9.

11. Release paper and A decorative sheet according to any one of claims 1 to 7, wherein the other side of the opaque layer is positioned to face the release paper, An adhesive layer is provided between the release paper and the other side of the opaque layer of the decorative sheet, A tack sheet characterized by having the following features.

12. The adhesive layer has grooves on the side facing the release paper. The tack sheet according to feature 11.

13. The tack sheet according to claim 11, from which the release paper has been peeled off, and the exterior material are attached to each other via the adhesive. A decorative component characterized by the following features.

Citation Information

Patent Citations

  • Heat-insulating sash

    JP2021127678A