Decorative sheets and decorative materials

Abstract

Even when formed using a polyvinyl chloride resin, there is provided a decorative sheet and a decorative material that are black yet have heat insulation properties and can suppress deformation due to solar radiation absorption. 【Solution means】In the decorative sheet 1, the colored original reaction layer 2 is formed of a colored polyvinyl chloride resin, the transparent resin layer 4 is formed of a transparent polyvinyl chloride resin and contains an ultraviolet absorber, and the pattern layer 3 contains any one or two or more of an azomethine azo-based pigment, a perylene-based pigment, a titanium-based black pigment, a black iron oxide pigment, or a black composite oxide pigment as a black pigment. When the decorative sheet is colorimetrically measured from the outermost surface side of the sheet, the CIE1976L * a * b * value in the color space of L * is 15 or more and 35 or less, and when the colored original reaction layer 2 is colorimetrically measured alone, the CIE1976L * a * b * value in the color space of L * is 85 or more.

Description

[Technical Field]

[0001] This disclosure relates to decorative sheets and decorative materials. [Background technology]

[0002] Conventionally, decorative sheets made from polyvinyl chloride resin have been known for their use in decorating interior materials for houses and other buildings.

[0003] As concern for environmental issues grew, the use of decorative sheets made from polyvinyl chloride resin was temporarily restricted, and the use of decorative sheets made from olefin resin as an alternative to polyvinyl chloride resin increased.

[0004] However, in recent years, improvements in incineration facilities and exhaust gas treatment technologies have suppressed the generation of harmful substances, and the role of polyvinyl chloride resin is being re-evaluated. Furthermore, more than half of the raw materials for polyvinyl chloride resin are made from salt, and the ethylene polymerization ratio derived from petrochemicals is lower compared to olefin resins, so it is also called a resource-saving resin. In addition, polyvinyl chloride resin has the advantage of being easy to process and recycle. For this reason, demand for decorative sheets made from polyvinyl chloride resin is increasing, also from the perspective of reducing environmental impact.

[0005] Furthermore, with the growing awareness of zero-energy homes (ZEH), there is increasing demand for highly insulated resin sashes and window frames made of polyvinyl chloride resin. While it is possible to decorate these base materials with decorative sheets, there are issues such as the difficulty of recycling olefin-based resin sheets. Therefore, as mentioned above, using polyvinyl chloride resin for resin sashes and window frame base materials, along with decorative sheets made of polyvinyl chloride resin, is expected to make a significant contribution to reducing environmental impact.

[0006] Patent Document 1 provides a highly weather-resistant polyvinyl chloride sheet that shows little discoloration even when used outdoors for extended periods. However, there is another problem with using it outdoors. When a dark color, such as black or near-black, is printed as a pattern, the sheet tends to absorb solar radiation and accumulate heat in environments exposed to sunlight, which can cause deformation of the polyvinyl chloride sheet or its base material, such as resin sashes or window frames. For this reason, polyvinyl chloride sheets used as exterior materials also need to have properties that do not easily absorb solar radiation (= heat shielding properties). [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 5-278173 [Overview of the project] [Problems that the invention aims to solve]

[0008] This disclosure is made in view of the above circumstances and aims to provide decorative sheets and decorative materials that, even when formed using polyvinyl chloride resin, are black in color, have heat-shielding properties, and can suppress deformation due to the absorption of solar radiation. [Means for solving the problem]

[0009] To solve the above problem, a decorative sheet according to one aspect of the present disclosure is a decorative sheet in which at least a colored base layer, a pattern layer, and a transparent resin layer are laminated in this order, wherein the colored base layer is formed of colored polyvinyl chloride resin, the transparent resin layer is formed of transparent polyvinyl chloride resin and contains an ultraviolet absorber, and the pattern layer contains one or more of the following as a black pigment: azomethine azo pigment, perylene pigment, titanium black pigment, black iron oxide pigment, or black composite oxide pigment, and when the decorative sheet is colored from the outermost surface side of the sheet, CIE1976L * a * b * L in color space *The value is between 15 and 35, and when the colored raw material layer is measured individually, it is CIE1976L * a * b * L in color space * The value is 85 or higher.

[0010] Furthermore, a decorative material according to another aspect of the present disclosure is characterized by comprising a base material for decorative materials and a decorative sheet laminated to the base material for decorative materials. [Effects of the Invention]

[0011] According to one aspect of this disclosure, it is possible to provide a decorative sheet and decorative material that, even when formed using polyvinyl chloride resin, are black in color, have heat-shielding properties, and can suppress deformation due to the absorption of solar radiation. [Brief explanation of the drawing]

[0012] [Figure 1] This is a cross-sectional view showing a decorative material according to one embodiment of the present disclosure. [Modes for carrying out the invention]

[0013] The decorative sheets and decorative members according to the embodiments of this disclosure will be described below with reference to the drawings. Herein, the drawings are schematic, and the relationship between thickness and planar dimensions, the ratio of the thickness of each layer, etc., may differ from reality. Within the scope of this disclosure, it is not necessary for the layers to be laminated in the order shown in the drawings. Furthermore, additional layers not shown in these drawings may be added. In addition, the embodiments described below are illustrative of configurations for realizing the technical idea of ​​this disclosure, and the technical idea of ​​this disclosure is not limited to the materials, shapes, and structures of the components described below. The technical idea of ​​this disclosure can be modified in various ways within the technical scope defined by the claims described in the patent claims. Furthermore, the terms "left / right" and "up / down" in the following explanation are merely definitions for the sake of explanation and do not limit the technical concept of this disclosure. Therefore, for example, if the page is rotated 90 degrees, "left / right" and "up / down" will be swapped when read, and if the page is rotated 180 degrees, "left" will become "right" and "right" will become "left".

[0014] The composition of the decorative material 10 will be described below with reference to Figure 1. As shown in Figure 1, the decorative material 10 comprises a decorative sheet 1 and a base material 8 which is a base material for the decorative material and is the base material to which the decorative sheet 1 is attached. In this example, the base material 8 has a decorative sheet 1 laminated on one side (the upper side in Figure 1). That is, the decorative material 10 comprises the base material 8 and the decorative sheet 1 laminated on one side of the base material 8. The specific configuration of the decorative sheet 1 and the base material 8 will be described later.

[0015] (Composition of decorative sheet) As shown in Figure 1, the decorative sheet 1 comprises a colored base layer 2, a pattern layer 3, a transparent resin layer 4, a surface protection layer 5, and an embossed portion 6. Specifically, in the decorative sheet 1, the pattern layer 3, the transparent resin layer 4, and the surface protection layer 5 are laminated in this order on the colored raw material layer 2 (on one side of the colored raw material layer 2). In addition, an embossed portion 6 is formed on the surface of the surface protection layer 5, which is the outermost layer of the decorative sheet 1 (the side opposite to the transparent resin layer 4).

[0016] In this embodiment, the decorative sheet 1 does not require a surface protection layer 5, and can be provided as needed. In other words, the decorative sheet 1 only needs to have a structure in which at least a colored raw material layer 2, a pattern layer 3, and a transparent resin layer 4 are laminated in this order.

[0017] (Colored original fabric layer) The colored base layer 2 is configured to serve as a support for the decorative sheet 1. In this embodiment, the colored base layer 2 is opaquely colored and has opacity. As a result, when forming a decorative member by bonding the decorative sheet 1 to a predetermined substrate, for example, the colored base layer 2 can conceal color variations and defects on the substrate surface.

[0018] Furthermore, as the material for the colored base layer 2, a polyvinyl chloride (PVC) resin film is used, which is flexible, thermoplastic, has good moldability and processability, and is also printable. In other words, in the decorative sheet 1 according to this embodiment, the colored base layer 2 is a colored polyvinyl chloride resin layer formed from colored polyvinyl chloride resin. By forming the base layer with PVC, scraps of decorative sheet 1 during the production of the decorative material 10, or used decorative sheet 1, can be melted and extruded using an extruder or the like for reuse as a recycled base material. In addition, PVC is easier to reuse by melting compared to olefin resins. In other words, the decorative sheet 1 according to this embodiment can improve processing suitability and recyclability by forming the colored raw material layer 2 with PVC.

[0019] Furthermore, the colored base layer 2, which is an opaque colored polyvinyl chloride colored sheet (colored film), can have its hue appropriately selected as the base color for the pattern layer 3. In addition, when it is necessary to make use of the surface texture of the base material 8, which is a base material for decorative materials, it is preferable that the colored base layer 2 is a colored polyvinyl chloride resin layer that has sufficient transparency to allow the surface of the base material 8 to be seen through.

[0020] For example, the coloring original layer 2 can be colored by mixing and kneading a coloring agent such as a pigment into the resin material (polyvinyl chloride) constituting the coloring original layer 2. As the coloring agent, organic and inorganic pigments can be used, but it is preferable to use an inorganic pigment. That is, the coloring original layer 2 preferably contains an inorganic substance as the coloring agent. For example, the coloring original layer 2 preferably contains any one or more inorganic substances such as calcium carbonate, titanium oxide, carbon black, silica, chromium, antimony, titanium composites, and other oxides.

[0021] In addition, in the coloring original layer 2, if necessary, for example, one or more additives selected from various additives such as a coloring agent, a filler, an ultraviolet absorber, a light stabilizer, a heat stabilizer, an antioxidant, an antistatic agent, a lubricant, a flame retardant, an antibacterial agent, an antifungal agent, a friction reducing agent, a light scattering agent, and a gloss modifier may be added.

[0022] When the color of the coloring original layer 2 in the cosmetic sheet 1 according to the present embodiment is measured alone, the L value in the CIE1976L * a * b * color space is 85 or more (L * ≧85). Here, the color measurement of the cosmetic sheet 1 may be, for example, color measurement of reflectance chromaticity using a D65 light source. Here, the CIE1976L * a * b * color space is a color space represented by coordinates using three values (L * a * b * ) recommended by the CIE (International Commission on Illumination). "L * " indicates brightness (lightness), and the larger the numerical value from 0 to 100, the brighter. More specifically, "L*" is the lightness of achromatic color, "L * =0" is black, "L * = 100" is a white diffused color, and the reflected color of white is even higher. The CIE1976L * a * b * color space is defined in JIS Z8781-4 (2013). In the decorative sheet 1 according to this embodiment, the colored base layer 2 has a relatively high brightness (L * By setting the L value to ≥85, the material is given reflectivity to visible light and near-infrared rays, which are the main components of solar radiation, resulting in a heat-shielding effect. For example, even if the pattern layer 3 is a dark color, the absorption of infrared light is suppressed, reducing the heat storage effect and suppressing deformation caused by heat storage. The L value in the colored base material layer 2 can be controlled by the coloring agent (type, amount added, etc.).

[0023] When the color of the colored raw material layer 2 is measured individually, the L value is within the above range (L * If the value is ≥85, a decorative sheet can be obtained that is black, yet has excellent solar reflectivity, is less prone to heat accumulation, and is less susceptible to deformation.

[0024] (Picture layer) The pattern layer 3 is laminated on one side of the colored base material layer 2 (the upper side in Figure 1) and is a layer for adding a pattern to the decorative sheet 1 to enhance its aesthetic appeal.

[0025] Furthermore, the pattern layer 3 is formed using printing ink or paint. The printing ink or paint that forms the pattern layer 3 is formed, for example, by dissolving or dispersing a coloring agent such as a dye or pigment together with a suitable binder resin in a suitable diluent solvent. The pattern layer 3 contains an azomethine azo-based or perylene-based organic black pigment as the black pigment. A typical perylene-based black pigment is, for example, perylene black. These organic black pigments are infrared non-absorbent. In other words, the inclusion of these organic black pigments in the pattern layer 3 provides a heat-shielding effect. Therefore, by using these organic black pigments as colorants, even when a pattern in black or a dark color close to black is printed on the colored base layer 2, which is a polyvinyl chloride sheet, the absorption of infrared light can be suppressed. Although some infrared light passes through the pattern layer 3, as mentioned above, this is reflected by the colored base layer 2, thus suppressing the absorption of infrared light for the decorative sheet 1 as a whole. This contributes to suppressing deformation of the decorative sheet 1 or decorative material 10 caused by heat accumulation due to the absorption of infrared light.

[0026] The decorative sheet 1 according to this embodiment contains the above-mentioned organic black pigment in the pattern layer 3, so that the color measured from the outermost surface of the sheet is CIE1976L * a * b * The L value in the color space is between 15 and 35 (15 ≤ L * The value is set to ≤35). This allows for sufficient solar reflectance and a deep design using dark colors to be given to the decorative sheet 1. Here, the color measurement of the decorative sheet 1 may be the same as the color measurement of the colored raw material layer 2, for example, by measuring the reflected chromaticity using a D65 light source. In other words, the color measurement from the outermost surface of the sheet may be the color measurement of the reflected chromaticity from the surface protection layer 5 (or the transparent resin layer 4 if the surface protection layer 5 is omitted) side. In the decorative sheet 1 according to this embodiment, as described above, the colored raw material layer 2 has a relatively high brightness (L * (≧85) Therefore, it provides a heat-shielding effect, and even with a pattern layer 3 that allows for patterns with low brightness and dark colors, 15≦L measured from the outermost surface * If the condition ≤35 is met, the absorption of infrared light can be suppressed and the heat storage effect can be reduced. Furthermore, by using the above-mentioned organic black pigment in the pattern layer 3, the lightness L can be reduced while avoiding the near-infrared absorption of the decorative sheet 1. * This makes it possible to lower the temperature. In other words, the decorative sheet 1 according to this embodiment contains the above-mentioned organic black pigment in the pattern layer 3, and CIE1976L in the outermost surface of the sheet and the colored raw material layer 2. * a * b * By controlling the L value in the color space, even when formed using polyvinyl chloride resin, heat shielding properties can be achieved, and deformation of the decorative sheet 1 or decorative material 10 caused by heat accumulation due to the absorption of infrared light can be suppressed. Furthermore, the design can be improved by creating a deep design using dark-colored patterns. The L value from the outermost surface of the sheet can be controlled by the organic black pigment in the pattern layer 3, as well as other pigments (amount added, etc.) including other black pigments described later.

[0027] Furthermore, when solar reflectance measurements are performed on a decorative sheet 1 having a pattern layer 3 formed on a colored base layer 2 using the above-mentioned organic black pigment, using a spectrophotometer conforming to JIS K 5602, it is preferable that the solar reflectance in the entire wavelength range from 300 nm to 2500 nm is 30% or more. Here, the solar reflectance measurement may be performed from the outermost surface of the sheet (surface protective layer or transparent resin layer 4). This reliably provides heat shielding by suppressing the solar radiation absorbed by the decorative sheet 1 and decorative material 10, and greatly contributes to suppressing deformation of the decorative sheet 1 or decorative material 10 caused by heat accumulation due to absorption of external light.

[0028] Furthermore, the decorative sheet 1 according to this embodiment does not use carbon black as the black pigment in the pattern layer 3, which is commonly used in existing decorative sheets. Carbon black has a high absorption rate in the near-infrared light region (0.781 μm to 2.5 μm), which prevents the problem of heat accumulation from being resolved. In other words, by not using carbon black as a coloring agent in the pattern layer 3, the absorption of infrared light can be suppressed more reliably.

[0029] Furthermore, the pattern layer 3 may contain pigments other than the organic black pigment mentioned above. For example, other black pigments include titanium-based black pigment, black iron oxide pigment, and black composite oxide pigment. The pattern layer 3 contains, as a black pigment, one or more of the above organic black pigment and other black pigments, namely azomethine azo pigment, perylene pigment, titanium-based black pigment, black iron oxide pigment, or black composite oxide pigment. Further other pigments include, for example, isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium dioxide. It is preferable that the pattern layer 3 contains at least one of these pigments. This makes it possible to express a wider range of hues compared to using only black pigment, and can impart a deeper design to the decorative sheet 1.

[0030] The printing ink or coating that forms the pattern layer 3 is applied using various printing methods such as gravure printing or offset printing, or various coating methods such as gravure coating or roll coating. The binder resin contained in the pattern layer 3 is not particularly limited, but it is preferable to use a resin with good adhesion. Specifically, a resin that has heat-sealing properties with polyvinyl chloride resin is preferred, such as a vinyl chloride-vinyl acetate copolymer, an acrylic resin alone, or a mixture of a vinyl chloride-vinyl acetate copolymer and an acrylic resin.

[0031] The pattern formed by pattern layer 3 can be any pattern, such as wood grain, stone pattern, fabric pattern, abstract pattern, geometric pattern, letters, symbols, solid color, or a combination thereof.

[0032] Furthermore, in order to improve the aesthetic appeal of the decorative sheet 1, the pattern layer 3 may be made into a multi-layer structure. For example, in order to better conceal the color and pattern of the material to which the decorative sheet 1 is attached, the structure may include a solid pattern layer that is solidly applied on the colored base layer 2 (surface) and a pattern layer provided on the solid layer to add a pattern to give the decorative sheet 1 a high level of aesthetic appeal. In this case, the solid pattern layer contains the above-mentioned organic black pigment (azomethine azo type or perylene type), and when the color is measured from the outermost surface of the sheet, the L value in the Lab color space is 15 or higher (L * It is acceptable to set it to ≥15). Furthermore, the pattern layer may have a higher brightness than the solid pattern layer, that is, a higher L value in the Lab color space than that of the solid pattern layer. In other words, the pattern layer 3 may consist of a dark solid pattern layer and a pattern layer that forms a pattern (for example, a light-colored pattern) on the solid pattern layer that has a higher brightness than the solid pattern layer. Note that the pattern layer may contain the above-mentioned organic black pigment, but in this case, the amount of organic black pigment added to the pattern layer shall be less than the amount of organic black pigment added to the solid pattern layer.

[0033] The thickness of the pattern layer 3 is preferably within the range of 1 μm to 10 μm. This is because when the thickness of the pattern layer 3 is 1 μm or more, it is possible to make the printing clearer. Also, when the thickness of the pattern layer 3 is 10 μm or less, the printability when manufacturing the decorative sheet 1 is improved and manufacturing costs can be reduced.

[0034] Furthermore, functional additives such as extender pigments, plasticizers, dispersants, surfactants, tackifiers, adhesion aids, drying agents, curing agents, curing accelerators, and curing retarders may be added to the pattern layer 3 to impart various functions.

[0035] (Transparent resin layer) The transparent resin layer 4 is a layer for improving the weather resistance of the decorative sheet 1. In the decorative sheet 1 according to this embodiment, the material for the transparent resin layer 4 is a polyvinyl chloride (PVC) resin film that is flexible, thermoplastic, has good moldability and processability, and is printable. In other words, in the decorative sheet 1 according to this embodiment, the transparent resin layer 4 is a transparent polyvinyl chloride resin layer formed from transparent polyvinyl chloride resin (transparent polyvinyl chloride resin). As described above, PVC can be used as a recycled base material by melting and extruding, and it is easier to reuse by melting compared to olefin resins. In other words, the decorative sheet 1 according to this embodiment can reliably improve processing suitability and recyclability by forming the colored raw material layer 2 and the transparent resin layer 4 with PVC. Furthermore, the transparent resin layer 4 is preferably transparent enough to allow the pattern layer 3, which is provided on the side facing the colored raw material layer 2 (the lower side in Figure 1), to be seen through. For example, it may be colorless, colored, or semi-transparent.

[0036] [UV absorber] Furthermore, in this embodiment, the transparent resin layer 4 contains an ultraviolet absorber. In other words, in the decorative sheet 1 according to this embodiment, the transparent resin layer 4 is formed of transparent polyvinyl chloride resin and contains an ultraviolet absorber. This provides the transparent resin layer 4 with excellent weather resistance. More specifically, it is preferable that the transparent resin layer 4 contains at least one of the following ultraviolet absorbers: a benzotriazole-based ultraviolet absorber or a triazine-based ultraviolet absorber. This provides excellent weather resistance to the transparent vinyl chloride resin forming the transparent resin layer 4, thereby improving the weather resistance of the decorative sheet 1. The amount of UV absorber added to the transparent resin layer 4 should be adjusted according to the desired weather resistance, but it is preferable that it be 0.5 parts by mass or more per 100 parts by mass of the transparent vinyl chloride resin constituting the transparent resin layer 4. This ensures that the weather resistance of the decorative sheet 1 is reliably improved.

[0037] (Benzotriazole-based UV absorbers) Examples of "benzotriazole-based" UV absorbers 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.

[0038] (Triazine-based UV absorber) Examples of "triazine-based" UV absorbers include 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, 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-isooctyloxyphenyl)-s-triazine, and mixtures, modified products, polymers, and derivatives thereof.

[0039] The thickness of the transparent resin layer 4 is preferably in the range of 50 μm to 150 μm, more preferably in the range of 50 μm to 100 μm, and even more preferably in the range of 60 μm to 80 μm. When the thickness is 50 μm or more, the weather resistance of the decorative sheet 1 is reliably improved, and the unevenness of the substrate to which it is adhered (in this example, the substrate 8) can be absorbed, resulting in a good finish when the decorative sheet 1 is applied. Furthermore, when the thickness of the transparent resin layer 4 is 150 μm or less, the transparent resin layer 4 does not need to be formed to be unnecessarily thick, improving the workability (e.g., bendability) and reducing the manufacturing cost of the decorative sheet 1.

[0040] (Surface protective layer) The surface protection layer 5 of the decorative sheet 1 according to this embodiment is a layer provided to the decorative sheet 1 to impart functions such as weather resistance, scratch resistance, stain resistance, and design properties. The material constituting the surface protection layer 5 is not particularly limited, and can be appropriately selected and used from resin materials such as urethane-based, acrylic-based, acrylic-silicone-based, fluorine-based, and epoxy-based materials. The surface protective layer 5 may contain various additives as needed, such as ultraviolet absorbers, heat stabilizers, light stabilizers, anti-blocking agents, catalyst scavengers, colorants, light scattering agents, and gloss modifiers. An example of the surface protective layer 5 according to this embodiment will be described below with specific examples.

[0041] In this embodiment, the surface protective layer 5 may mainly consist of an acrylic resin composition containing cyclohexyl (meth)acrylate as a monomer component. In this embodiment, cyclohexyl (meth)acrylate means cyclohexyl acrylate or cyclohexyl methacrylate. By including cyclohexyl (meth)acrylate as a monomer component, the affinity for water can be reduced, and degradation due to hydrolysis and other factors can be suppressed.

[0042] Regarding the cyclohexyl (meth)acrylate content, it is desirable that the cyclohexyl (meth)acrylate content be within the range of 5% by mass or more and 50% by mass or less among the monomer components of all acrylic resin compositions, that is, among the monomer components of the acrylic resin composition that is the main component of the surface protection layer 5. By setting the cyclohexyl (meth)acrylate content to 5% by mass or more, a sufficient degradation suppression effect can be obtained. Furthermore, by setting the cyclohexyl (meth)acrylate content to 50% by mass or less, it becomes possible to impart high weather resistance over time without significantly changing the various properties of the surface protection layer 5 of the decorative sheet, such as improved surface hardness maintenance, improved stain resistance, and adjustment of surface gloss. Here, the "main component" mentioned above means that the content of the acrylic resin composition constituting the surface protection layer 5 is 50% by mass or more of the total mass of the surface protection layer 5.

[0043] In addition to cyclohexyl (meth)acrylate, examples of monomer components of the acrylic resin composition that can be used in the surface protective layer 5 according to this embodiment include cyclohexylmethyl (meth)acrylate, cyclohexylethyl (meth)acrylate, cyclohexylpropyl (meth)acrylate, cyclohexylbutyl (meth)acrylate, dimethylcyclohexane mono (meth)acrylate, dimethylcyclohexane di (meth)acrylate, trimethylcyclohexane mono (meth)acrylate, trimethylcyclohexane di (meth)acrylate, trimethylcyclohexane tri (meth)acrylate, tetramethylcyclohexane mono (meth)acrylate, tetramethylcyclohexane di (meth)acrylate, tetramethylcyclohexane tri (meth)acrylate, tetramethylcyclohexane tetra (meth)acrylate, dicyclohexylmethyl (meth)acrylate, dicyclohexylmethyl (meth)acrylate, phenoxycyclohexylmethyl (meth)acrylate, methoxycyclohexylmethyl (meth)acrylate, and methoxycyclohexylmethyl (meth)acrylate. Among these, those containing isomers may be each isomer individually and / or a mixture of each isomer.

[0044] Furthermore, in this embodiment, the surface protection layer 5 may be formed by coating the outermost surface of the decorative sheet with a coating liquid containing an acrylic resin composition containing the above-mentioned cyclohexyl (meth)acrylate as a monomer component and a weather-resistant agent such as an ultraviolet absorber, which will be described later. As will be described in detail later, for example, the coating liquid containing the above-mentioned acrylic resin composition and weather-resistant agent may be coated onto a transparent resin layer 4 on which an embossed portion 6 has been formed, and then wiped to embed the coating liquid into the embossed portion 6 and form the surface protection layer 5. As for the curing method of the coating liquid for forming the surface protective layer 5, any of the following can be used: a one-component curing type, a two-component curing type using a curing agent, or an active energy ray curing type cured by irradiation with ultraviolet light or ionizing radiation. However, considering weather resistance, the two-component curing type or the active energy ray curing type is preferable, and if post-processing after bonding to various substrates to become decorative components is considered, the two-component curing type that is crosslinked by isocyanate curing is desirable.

[0045] As a two-component curing type acrylic resin composition, a composition containing, for example, an acrylic resin having two or more functional groups selected from hydroxyl groups, amino groups, and carboxyl groups in one molecule, and a polyisocyanate compound having two or more isocyanate groups that can react with the functional groups in one molecule is preferred. Particularly preferred is a composition containing an acrylic polyol having two or more hydroxyl groups in one molecule and a polyisocyanate compound.

[0046] As acrylic polyols having two or more hydroxyl groups in one molecule, in addition to the cyclohexyl (meth)acrylate mentioned above, for example, (meth)acrylic acid ester copolymers containing hydroxyethyl (meth)acrylate as a monomer component can be used. On the other hand, as polyisocyanate compounds having two or more isocyanate groups in one molecule, for example, tolylene diisocyanate (TDI), 4,4'-diphenylmethane diisocyanate (MDI), xylylene diisocyanate (XDI) and their hydrogenated compounds, isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), and trimer types, TMP adduct types, and burette types synthesized by known techniques from one or more compounds selected from these. Furthermore, compositions by mixing one or more of these different types of polyisocyanates can be used. Among these, HDI, or the trimer type, TMP adduct type, and burette type of HDI are preferred from the viewpoint of weather resistance. The content of the isocyanate compound relative to the resin component described above can be set arbitrarily, but it is desirable to set it so that the hydroxyl group / isocyanate group equivalent ratio is about 1 / 1 to 1 / 3. In particular, if the equivalent amount of hydroxyl groups is greater than the equivalent amount of isocyanate groups, crosslinking may not proceed sufficiently, and the desired performance may not be added to the surface protective layer 5, which is undesirable.

[0047] When the curing method for the coating solution used to form the surface protective layer 5 is active energy ray curing, known monomers, oligomers, etc. having (meth)acryloyl groups can be used as the active energy ray curing type acrylic resin composition, and in addition to these monomers and oligomers, the above-mentioned cyclohexyl (meth)acrylate may be added.

[0048] In order to further improve the weather resistance of the decorative sheet 1, in this embodiment, a UV absorber and a light stabilizer are added to the surface protective layer 5 as weather-resistant agents. In other words, the surface protective layer 5 contains a UV absorber and a light stabilizer.

[0049] <UV absorber> As UV absorbers, known types such as benzotriazole-based, triazine-based (e.g., hydroxyphenyltriazine-based), and benzophenone-based UV absorbers can be used. Among these, selecting a hydroxyphenyltriazine-based UV absorber allows for long-term UV absorption performance because the triazine skeleton suppresses bleeding, and the triazine skeleton is chemically more stable than the skeletons of benzotriazole-based and benzophenone-based UV absorbers. In other words, it is preferable that the surface protective layer 5 contains a triazine-based UV absorber as the UV absorber.

[0050] Examples of hydroxyphenyltriazine-based UV absorbers include 2-(4,6-diphenyl-1,3,5-triazine-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol, 2-(2-hydroxy-4-[1-octyloxycarbonylethoxy]phenyl)-4,6-bis(4-phenylphenyl)-1,3,5-triazine, 2-(4,6-diphenyl-1,3,5-triazine-2-yl)-5-[(hexyl)oxy]-phenol, 2-[4-[(2-hydroxy-3-tridecyloxypropyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-ethyl-hexanoic acid, 2-[4-(4,6-diphenyl-[1,3,5]triazine-2-yl) Examples include -3-hydroxyphenoxy]-ethyl ester, octanoic acid, 2-[4-(4,6-diphenyl-[1,3,5]triazine-2-yl)-3-hydroxyphenoxy]-ethyl ester, 2,4,6-tris{2-(2-hydroxy-4-[1-octyloxycarbonylethoxy]phenyl)}-1,3,5-triazine, 2,4-bis(2-hydroxy-4-butyloxyphenyl)-6-(2,4-bis-butyloxyphenyl)-1,3,5-triazine, 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-isooctyloxyphenyl)-s-triazine, and 2,4-bis(2-hydroxy-4-butyloxyphenyl)-6-(2,4-bis-butyloxyphenyl)-1,3,5-triazine. In this embodiment, the surface protective layer 5 may contain 2-(2-hydroxy-4-[1-octyloxycarbonylethoxy]phenyl)-4,6-bis(4-phenylphenyl)-1,3,5-triazine (hereinafter referred to as "ultraviolet absorber A" for convenience). Note that 2-(2-hydroxy-4-[1-octyloxycarbonylethoxy]phenyl)-4,6-bis(4-phenylphenyl)-1,3,5-triazine, which is used as ultraviolet absorber A, is generally known as the main component of "Tinuvin 479: manufactured by BASF Japan Ltd."

[0051] In the surface protection layer 5 of this embodiment, the amount of the above-mentioned triazine-based (hydroxyphenyltriazine-based) ultraviolet absorber added is preferably within the range of 1 part by mass or more and 30 parts by mass or less per 100 parts by mass of the resin composition (e.g., acrylic resin composition) forming the surface protection layer 5. By adding 1 part by mass or more of the above-mentioned ultraviolet absorber, a weather resistance improvement effect is achieved, and by adding 30 parts by mass or less, the influence on physical properties other than weather resistance of the surface protection layer 5 can be suppressed to a level that does not pose a practical problem. In particular, when the above-mentioned ultraviolet absorber A is used as the ultraviolet absorber added to the surface protective layer 5, the amount added is preferably in the range of 1 part by mass or more and 20 parts by mass or less per 100 parts by mass of the acrylic resin composition, more preferably in the range of 5 parts by mass or more and 15 parts by mass or less, and even more preferably in the range of 8 parts by mass or more and 12 parts by mass or less. By adding 1 part by mass or more of ultraviolet absorber A, a weather resistance improvement effect is achieved, and by adding 20 parts by mass or less, the influence on physical properties other than weather resistance of the surface protective layer 5 can be suppressed to a level that does not pose a practical problem.

[0052] Furthermore, in this embodiment, by using both UV absorber A and 2-(4,6-diphenyl-1,3,5-triazine-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol (hereinafter referred to as "UV absorber B" for convenience) as triazine-based (hydroxyphenyltriazine-based) UV absorbers in the surface protective layer 5, even better weather resistance is provided. This is because UV absorber B has a high UV absorption capacity in the short-wavelength region, which is relatively high energy among UV rays, and is chemically stable compared to other UV absorbers that absorb in almost the same wavelength region, so the wavelength region over which UV rays are absorbed is broadened when used in combination. Note that 2-(4,6-diphenyl-1,3,5-triazine-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol, which is used as UV absorber B, is generally known as the main component of "ADEKA Stab LA-46: manufactured by ADEKA Corporation".

[0053] In this embodiment, the amount of ultraviolet absorber A added to the surface protective layer 5 is preferably within the range of 10 parts by mass to 200 parts by mass, more preferably within the range of 20 parts by mass to 100 parts by mass, and even more preferably within the range of 40 parts by mass to 80 parts by mass, relative to 100 parts by mass of ultraviolet absorber B. By setting the amount of ultraviolet absorber A within the above numerical range, even better weather resistance can be provided.

[0054] <Light stabilizer> In this embodiment, the surface protective layer 5 contains a light stabilizer in addition to an ultraviolet absorber as a weather-resistant agent. This improves the weather resistance of the decorative sheet 1.

[0055] As a light stabilizer added to the surface protective layer 5, for example, a radical scavenger can be used. In other words, the surface protective layer 5 may contain a triazine-based ultraviolet absorber and a light stabilizer. By using the above-mentioned triazine-based ultraviolet absorber and the radical scavenger in combination, the weather resistance of the decorative sheet 1 can be further improved. Examples of hindered amine-based radical scavengers that can be used in this embodiment include bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, methyl 1,2,2,6,6-pentamethyl-4-piperidyl sebacate, 1-oxy-2,2,6,6-tetramethyl-4-hydroxypiperidine, 2,2,6,6-tetramethyl-4-piperidyl stearate, 1,2,2,6,6-pentamethyl-4-piperidyl stearate, 2,2,6,6-tetramethyl- 4-Piperidyl benzoate, bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, tetrakis(2,2,6,6-tetramethyl-4-piperidyl)-1,2,3,4-butanetetracarboxylate, tetrakis(1,2,2,6,6-pentamethyl-4-piperidyl)-1,2,3,4-butanetetracarboxylate, bis(2,2,6,6-tetramethyl-4-piperidyl)·di(tridecyl)-1,2,3,4-butanetetracarboxylate, bi Su(1,2,2,6,6-pentamethyl-4-piperidyl) di(tridecyl)-1,2,3,4-butanetetracarboxylate, bis(1,2,2,4,4-pentamethyl-4-piperidyl)-2-butyl-2-(3,5-diter-butyl-4-hydroxybenzyl)malonate, 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol / diethyl succinate polycondensate, 1,6-bis(2,2,6,6-tetramethyl-4-piperidylamino) Hexane / 2,4-dichloro-6-morpholino-s-triazine polycondensate, 1,6-bis(2,2,6,6-tetramethyl-4-piperidylamino)hexane / 2,4-dichloro-6-tertiaryoctylamino-s-triazine polycondensate, 1,5,8,12-tetrakis[2,4-bis(N-butyl-N-(2,2,6,6-tetramethyl-4-piperidyl)amino)-s-triazine-6-yl]-1,5,8,12-tetraazadodecane, 1,5,8,12-tetrakis[2,4-Bis(N-butyl-N-(1,2,2,6,6-pentamethyl-4-piperidyl)amino)-s-triazine-6-yl]-1,5,8-12-tetraazadodecane, 1,6,11-Tris[2,4-bis(N-butyl-N-(2,2,6,6-tetramethyl-4-piperidyl)amino)-s-triazine-6-yl]aminoundecane, 1,6,11-Tris[2,4-bis(N-butyl-N-(1,2,2,6,6-pentamethyl-4-piperidyl)amino Examples include, but are not limited to, the reaction products of )-s-triazine-6-yl]aminoundecane, bis(1,2,2,6,6-pentamethyl-4-piperidyl)[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]butylmalonatecyclohexane and N-butyl peroxide 2,2,6,6-tetramethyl-4-piperidineamine-2,4,6-trichloro1,3,5-triazine and 2-aminoethanol.

[0056] In this embodiment, the amount of light stabilizer (e.g., hindered amine-based radical scavenger) added to the surface protective layer 5 is preferably within the range of 1 part by mass to 30 parts by mass per 100 parts by mass of the resin composition (e.g., acrylic resin composition) forming the surface protective layer 5. Adding 1 part by mass or more of the light stabilizer allows for the desired weather resistance to be obtained, while adding 30 parts by mass or less suppresses the bleed-out of the weather stabilizer and minimizes its influence on other physical properties of the surface protective layer 5.

[0057] <Application amount> The amount of surface protective layer 5 applied, that is, the amount of material for the surface protective layer 5 applied on the transparent resin layer 4, is 3 g / m². 2 More than 10g / m 2 A range of less than 3 g / m² is preferable. 2 If the amount is less than 10g / m², good weather resistance cannot be obtained. 2If the coating amount exceeds this range, it may hinder recyclability. By keeping the coating amount within this range, it is possible to achieve both good weather resistance and recyclability. Furthermore, keeping the coating amount within this range improves productivity and processability (e.g., bendability).

[0058] In this embodiment, the surface protection layer 5 includes an ultraviolet absorber and a light stabilizer, but the disclosure is not limited thereto. The surface protection layer 5 may be provided with the desired weather resistance according to the application, and the surface protection layer 5 may be configured to include at least one of the ultraviolet absorber and the light stabilizer.

[0059] In this embodiment, various known coating methods can be used to provide the surface protection layer 5, such as gravure coating, reverse coating, gravure reverse coating, die coating, and flow coating. Furthermore, various additives such as anti-friction agents, anti-blocking agents, and antistatic agents may be added to the surface protection layer 5 in this embodiment as needed.

[0060] (Embossed area) As shown in Figure 1, an embossed portion 6 is provided on the outermost surface of the decorative sheet 1 according to this embodiment. By providing an embossed portion 6 on the outermost surface, it is possible to improve fingerprint resistance while maintaining the matte finish of the decorative sheet 1 surface. Furthermore, the embossed portion 6 can be made into various uneven shapes, such as wood grain grooves, stone slab surface irregularities (granite cleavage surfaces, etc.), fabric surface textures, pearlescent, sandy, hairline, or fine-line grooves, thereby imparting a given design to the surface of the decorative sheet 1. The embossed portion 6 can be made into various uneven shapes, for example, according to the design of the pattern layer 3 or according to the desired design. The embossed portion 6 is formed on the surface (outermost surface) side of the surface protection layer 5, which is the outermost layer of the decorative sheet 1, and constitutes an uneven pattern. In this embodiment, the aforementioned surface protection layer 5 is embedded in the embossed portion 6 that constitutes this uneven pattern. This point will be explained below.

[0061] In the decorative sheet 1 according to this embodiment, the embossed portion 6 is provided on the transparent resin layer 4. That is, the transparent resin layer 4 is the layer on which the embossed portion 6 is formed. The shape of the uneven pattern provided on the surface of the transparent resin layer 4 is not particularly limited, but it is preferable that the shape of the embossed portion 6 constituting the uneven pattern is such that the opening diameter increases from the back side (pattern layer 3 in this example) to the front side (surface protection layer 5) of the transparent resin layer 4. With such a shape, it is easier to embed the surface protection layer composition (coating liquid) into the embossed portion 6 by wiping.

[0062] Furthermore, it is preferable that the side surface forming the embossed portion 6 is an inclined surface. If the side surface forming the embossed portion 6 is an inclined surface, it becomes easier to embed the surface protective layer composition (coating liquid) into the embossed portion 6 by wiping. Furthermore, all sides forming the embossed portion 6 may be covered with the surface protective layer 5. Furthermore, the depth of the embossed portion 6 is preferably within the range of 1 μm to 50 μm in the thickness direction of the transparent resin layer 4. If the depth of the embossed portion 6 is within the above numerical range, it becomes easier to embed the surface protective layer composition (coating liquid) into the embossed portion 6 by wiping, and peeling of the surface protective layer can be prevented.

[0063] Furthermore, the width of the embossed portion 6 is preferably within the range of 1 μm to 20 μm. If the width of the embossed portion 6 is within the above numerical range, it becomes easier to embed the surface protective layer composition (coating liquid) into the embossed portion 6 by wiping, and it is possible to prevent the surface protective layer embedded in the embossed portion 6 from peeling off.

[0064] Furthermore, it is preferable that the embossed portion 6 is completely filled with the surface protective layer composition (coating liquid), but it is preferable that the filling rate of the surface protective layer 5 relative to the volume of the embossed portion 6 be 10% or more. If the filling rate of the surface protective layer 5 relative to the volume of the embossed portion 6 is 10% or more, the weather resistance of the embossed portion 6 can be improved. That is, if the filling rate of the surface protective layer 5 relative to the volume of the embossed portion 6 is 10% or more, the occurrence of whitening and breakage in the conduit portion can be reduced. Also, as mentioned above, it is preferable that the filling rate of the surface protective layer 5 relative to the volume of the embossed portion 6 be 100%, but it is more preferable that the filling rate of the surface protective layer 5 relative to the volume of the embossed portion 6 be 80% or less, and it is even more preferable that the filling rate of the surface protective layer 5 relative to the volume of the embossed portion 6 be 60% or less. If the filling rate of the surface protective layer 5 relative to the volume of the embossed portion 6 is 80% or less, a sufficient tactile feel can be obtained in the embossed portion 6. Alternatively, by making the filling rate of the surface protective layer 5 with respect to the volume of the embossed portion 6 100%, the surface of the surface protective layer 5 filled in the embossed portion 6 and the surface of the transparent resin layer 4 in the area without the embossed portion 6 may be made flush.

[0065] (Total sheet thickness) The overall thickness (total thickness) of the decorative sheet 1 according to this embodiment is preferably in the range of 100 μm to 300 μm, and more preferably in the range of 120 μm to 200 μm. This makes it possible to form a decorative sheet 1 that has opacity comparable to that of a conventional decorative sheet formed using an olefin resin, and has good processability. In this example, the total thickness of the decorative sheet 1 is the sum of the thicknesses of the two layers, the colored raw material layer 2 and the transparent resin layer 4.

[0066] As described above, the decorative sheet 1 according to this embodiment has at least a colored base layer 2, a transparent resin layer 4, and a surface protection layer 5 laminated in this order. The colored base layer 2 is made of colored polyvinyl chloride resin, the transparent resin layer 4 is made of transparent polyvinyl chloride resin and contains an ultraviolet absorber, and the surface protection layer 5 contains an ultraviolet absorber and a light stabilizer. As a result, even when formed using polyvinyl chloride resin, a decorative sheet with excellent weather resistance, as well as excellent processability and recyclability can be obtained.

[0067] (Decorative material) In this embodiment, the decorative sheet 1 described above may be bonded to a base material 8, which is a base material for decorative materials, to form a decorative material 10.

[0068] (base material) The base material 8 can be a wood-based or metal-based material. Examples of wood-based materials include wood veneer, wood plywood, laminated wood, particleboard, medium-density fiberboard, and rigid fiberboard. Examples of metal-based materials include steel plates and aluminum plates. The base material 8 may also be a resin such as plastic, or a composite material thereof. When the base material 8 is a resin-based material, for example, polyvinyl chloride resin can be used. Base material 8 made of polyvinyl chloride resin has high thermal insulation properties and is in high demand as a window frame (sash). Furthermore, decorative material 10, which is a polyvinyl chloride resin base material 8 decorated with a decorative sheet 1, allows for the melting and reuse of both the base material 8 and the decorative sheet 1, thus improving recyclability. The base material 8 may also be made of, for example, a non-combustible steel plate or a non-combustible material as specified in Ministry of Construction Notification No. 1400.

[0069] As shown in Figure 1, a decorative sheet 1 is laminated to one side of the base material 8 (the upper side in Figure 1). In other words, the decorative material 10 according to this embodiment comprises a base material 8, which is a base material for decorative materials, and a decorative sheet 1 that is bonded to the base material 8. By laminating the decorative sheet 1 according to this embodiment to the base material 8, even when formed using polyvinyl chloride resin, it is possible to obtain a decorative material that has heat-shielding properties and suppresses deformation of the decorative material 10 due to absorption of sunlight. Furthermore, even when formed using polyvinyl chloride resin, it is possible to obtain a decorative material that has excellent weather resistance, as well as excellent processability and recyclability. More specifically, the decorative material 10 comprises a base material 8 and a decorative sheet 1 laminated on one surface of the base material 8. Note that the configuration of the decorative material 10 is not limited to the example shown in Figure 1. That is, the decorative material 10 may also be configured to include a decorative sheet 1 laminated on the other surface of the base material 8 (the lower surface in Figure 1) in addition to the one surface of the base material 8.

[0070] (adhesive layer) When laminating the decorative sheet 1 onto the base material 8, an adhesive layer 7 may be provided by laminating via an appropriately selected adhesive as needed, or the sheets may be laminated directly without using an adhesive. The adhesive layer 7 may be formed with an adhesive selected according to the material of the substrate 8. The adhesive constituting the adhesive layer 7 is not particularly limited, but examples include acrylic adhesives, vinyl acetate adhesives, ethylene vinyl acetate adhesives, vinyl chloride-vinyl acetate copolymer adhesives, urethane adhesives, isocyanate adhesives, melamine resin adhesives, polyester adhesives, etc. It may also be an emulsion type, a two-component curing type, or a hot-melt type adhesive.

[0071] (Method of manufacturing decorative sheets and decorative components) Below, an example of a method for manufacturing the decorative sheet 1 according to this embodiment will be briefly described. The pattern layer 3 is printed on the colored base layer 2 described above. Next, a transparent resin layer 4 is formed on the colored raw material layer 2 on which the pattern layer 3 is formed by heat lamination. At the same time, an embossed pattern is created on the surface of the transparent resin layer 4 opposite to the colored raw material layer 2 by embossing, thereby forming an embossed portion 6. Next, a coating liquid is applied to the surface of the transparent resin layer 4, which has an embossed pattern (embossed portion 6), to form a surface protective layer 5. Finally, the coating liquid is wiped into the embossed areas 6 that make up the uneven pattern, and the coating liquid is cured to form a surface protective layer 5 on the transparent resin layer 4. In this way, the decorative sheet 1 according to this embodiment is formed. Below, an example of a method for manufacturing the cosmetic material 10 according to this embodiment will be briefly described. The decorative sheet 1 and the base material 8 described above are bonded together to form the decorative material 10.

[0072] <Variation> While hydroxyphenyltriazine-based ultraviolet absorbers that can be added to the surface protective layer 5 have been described, the hydroxyphenyltriazine-based ultraviolet absorbers that can be used in this embodiment are not limited to these. The surface protective layer 5 according to this embodiment may contain, for example, a hydroxyphenyltriazine-based ultraviolet absorber having a structure represented by the following general formula (1). Alternatively, the surface protective layer 5 may contain an ultraviolet absorber having a structure represented by the following general formula (2). Specifically, it may contain 2,4-bis[2-hydroxy-4-(2-ethylhexyloxy)phenyl)]-6-(4-methoxyphenyl)-s-triazine shown in the following formula (3), or it may contain a hydroxyphenyltriazine-based ultraviolet absorber shown in the following formula (4).

[0073] [ka]

[0074] In general formula (1), R1 to R3 each independently represent a hydrogen atom, a methyl group, a phenyl group, or an alkoxy group, and at least two of them are alkoxy groups having 8 to 18 carbon atoms that do not contain a carbonyl group; R4 and R5 each independently represent a hydroxyl group, a methyl group, or a hydrogen atom; and R6 to R8 each independently represent a methyl group or a hydrogen atom.

[0075] [ka]

[0076] In general formula (2), R1 and R2 represent alkoxy groups having 8 to 18 carbon atoms, R3 represents an alkoxy group having 1 to 4 carbon atoms, R4 represents a hydroxyl group, and R5 to R8 represent hydrogen atoms.

[0077] [ka]

[0078] [ka]

[0079] Furthermore, by using both hydroxyphenyltriazine and benzotriazole UV absorbers in combination, even better weather resistance can be imparted due to their interaction. This is because benzotriazole UV absorbers have an absorption peak at longer wavelengths than hydroxyphenyltriazine UV absorbers, thus broadening the wavelength range over which ultraviolet light is absorbed when used in combination. The amount of benzotriazole UV absorber to be added is preferably in the range of 1 to 30 parts by mass per 100 parts by mass of the acrylic resin composition. Adding 1 part by mass or more will yield the desired effect, while adding 30 parts by mass or less will suppress the bleed-out of the weather-resistant agent. However, because benzotriazole UV absorbers have an absorption peak at longer wavelengths, they may have a yellowish tint. If color is a concern, the amount added should be reduced.

[0080] Examples of benzotriazole-based ultraviolet absorbers include, but are not limited to, 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, 2-(2'-hydroxy-3',5'-diter-butylphenyl)-5-chlorobenzotriazole, 2-(2'-hydroxy-3'-ter-butyl-5'-methylphenyl)-5-chlorobenzotriazole, 2-(2'-hydroxy-5'-ter-octylphenyl)benzotriazole, 2-(2'-hydroxy-3',5'-dicumylphenyl)benzotriazole, 2,2'-methylenebis(4-ter-octyl-6-(benzotriazolyl)phenol), and 2-(2'-hydroxy-3'-ter-butyl-5'-carboxyphenyl)benzotriazole.

[0081] (Effects of this embodiment) The decorative sheet 1 and decorative material 10 according to this embodiment have the following effects. (1) The decorative sheet 1 is a decorative sheet in which at least a colored base layer 2, a pattern layer 3, and a transparent resin layer 4 are laminated in this order, the colored base layer 2 is made of colored polyvinyl chloride resin, the transparent resin layer 4 is made of transparent polyvinyl chloride resin and contains an ultraviolet absorber, and the pattern layer 3 contains one or more of the following as black pigments: azomethine azo pigment, perylene pigment, titanium black pigment, black iron oxide pigment, or black composite oxide pigment, and when the decorative sheet 1 is colored from the outermost surface side of the sheet, it conforms to CIE1976L * a * b * L in color space * The value is between 15 and 35, and when the colored raw material layer 2 is measured individually, CIE1976L * a * b * L in color space * The value is 85 or higher. According to this configuration, the colored base layer 2 has a relatively high brightness (L * By setting it to ≥85, the reflectivity of visible light and near-infrared rays, which are the main components of solar radiation, is imparted, resulting in a heat-shielding effect. Therefore, even if the pattern layer 3 is a dark color, 15 ≤ L is measured from the outermost surface.* If the condition ≤ 35 is met, the absorption of infrared light can be suppressed and the heat storage effect can be reduced. Therefore, even when formed using polyvinyl chloride resin, the decorative sheet 1 has heat-shielding properties and can suppress deformation of the decorative sheet 1 or decorative material 10 caused by heat storage due to absorption of solar radiation. (2) The decorative sheet 1 underwent solar reflectance measurement using a spectrophotometer compliant with JIS K 5602. When performed from the outermost surface of the sheet, the entire wavelength range from 300 nm to 2500 nm is covered. The solar reflectance may be 30% or more. This configuration suppresses the solar radiation absorbed by the decorative sheet 1 and the decorative material 10. This ensures that heat shielding is provided, and the decorative sheet 1 or that causes heat accumulation due to absorption of external light This greatly contributes to suppressing the deformation of the decorative material 10. (3) In the decorative sheet 1, carbon black is not used as the black pigment in the pattern layer 3. This configuration allows for more reliable suppression of infrared light absorption. (4) In the decorative sheet 1, the pattern layer 3 may contain at least one pigment from among isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium dioxide. This configuration allows for a wider range of color expression compared to using only black pigment, and can impart a deeper, more sophisticated design to the decorative sheet 1. (5) In the decorative sheet 1, the binder resin contained in the pattern layer 3 may be a vinyl chloride-vinyl acetate copolymer, an acrylic resin alone, or a mixture of a vinyl chloride-vinyl acetate copolymer and an acrylic resin. This configuration allows for good adhesion. (6) In the decorative sheet 1, the colored raw material layer 2 may contain one or more inorganic substances from among calcium carbonate, titanium dioxide, carbon black, silica, chromium, antimony, titanium composites, and other oxides. This configuration allows for the colored base layer 2 to be suitably colored and given opacity. (7) In the decorative sheet 1, the transparent resin layer 4 may contain at least one of a benzotriazole-based ultraviolet absorber or a triazine-based ultraviolet absorber as an ultraviolet absorber. This configuration provides excellent weather resistance to the transparent polyvinyl chloride resin forming the transparent resin layer 4, thereby improving the weather resistance of the decorative sheet 1. (8) The decorative sheet 1 has a surface protection layer 5 laminated on a transparent resin layer 4, and the surface protection layer 5 may contain a triazine-based ultraviolet absorber and a light stabilizer. This configuration allows for further improvement of the weather resistance of the decorative sheet 1. (9) In the decorative sheet 1, an embossed portion 6 may be formed on the surface side of the surface protective layer 5. This configuration allows for improved fingerprint resistance while maintaining the matte finish of the decorative sheet 1 surface, and also provides a decorative element to the surface. (10) The decorative sheet 1 may have a sheet temperature of less than 70°C after 60 minutes of illumination from the sheet surface at an illuminance of 100,000 lux using an artificial sunlight lamp. This configuration ensures a reduction in heat storage and effectively suppresses deformation caused by solar radiation. (11) The decorative sheet 1 may have a sheet temperature of less than 70°C after 30 minutes of illumination from the sheet surface at an illuminance of 100,000 lux using an artificial sunlight lamp. This configuration significantly reduces heat storage in practical applications and effectively suppresses deformation caused by solar radiation. (12) The decorative material 10 comprises a base material 8, which is a base material for decorative materials, and a decorative sheet 1 that is bonded to the base material 8. With this configuration, even when formed using polyvinyl chloride resin, the decorative material 10 has heat-shielding properties, which can suppress deformation due to the absorption of solar radiation.

[0082] <Examples> The present disclosure will be described in detail below with reference to examples and comparative examples, but the present disclosure is not limited to the examples below.

[0083] (Example 1) Colored polyvinyl chloride resin (hereinafter referred to as PVC) is used as the colored base layer. A pattern layer was created on a Cloride sheet by gravure printing with printing ink for PVC. Subsequently, a highly weather-resistant transparent PVC sheet was heat-laminated onto the colored base material layer with the pattern layer as a transparent resin layer, and a surface protective layer mainly composed of an acrylic resin composition was formed on the transparent resin layer. This obtained the decorative sheet according to Example 1. [Colored original fabric layer] Material: PVC, Thickness: 80μm Coloring agent: Titanium dioxide [Picture layer] A wood grain pattern was printed onto a colored substrate layer using gravure printing with a printing ink prepared by adding 3 parts by mass of four pigments—isoindolinone, polyazo, phthalocyanine, and an organic black pigment (perylene black)—as binder resins. The binder resin was acrylic resin and vinyl chloride resin-vinyl acetate resin copolymer resin. [Transparent resin layer] Material: PVC, Thickness: 80μm Additives: Triazine-based UV absorber (0.5 parts by mass per 100 parts by mass of PVC) [Surface protective layer] • Main ingredient (methyl methacrylate / 2-hydroxyethyl methacrylate = 95 / 5 copolymer) ... 90 parts by mass • UV absorber (Tinuvin 479; manufactured by BASF Japan Ltd.) ... 9 parts by mass • Light stabilizer (Tinuvin 123; manufactured by BASF Japan Ltd.) ... 1 part by mass • Hardening agent (Takenate D170; manufactured by Mitsui Chemicals, Inc.) ·· 10 parts by mass • Solvent (ethyl acetate) ... 240 parts by mass ·Amount of application: 3g / m 2 [Total sheet thickness] 160 μm (= thickness of colored base material layer: 80 μm + thickness of transparent resin layer: 80 μm) [L value in the Lab color space] CIE1976L color measured from the sheet surface * a * b * L value in color space: 20 CIE1976L color measured on the colored raw material layer * a * b * L value in color space: 85 The L value on the sheet surface was controlled by the black pigment added to the pattern layer. Furthermore, the L value in the colored base layer was controlled by the coloring agent (titanium dioxide) added to the colored base layer. (Example 2) CIE1976L color measured from the sheet surface * a * b * The L value in the color space is 15, and the color was measured on the colored substrate layer using CIE1976L. * a * b * The L value in the color space was set to 85. Otherwise, the decorative sheet of Example 2 was obtained in the same manner as in Example 1. (Example 3) CIE1976L color measured from the sheet surface * a * b * The L value in the color space is 25, and the color was measured on the colored raw material layer using CIE1976L. * a * b * The L value in the color space was set to 85. Otherwise, the decorative sheet of Example 3 was obtained in the same manner as in Example 1. (Example 4) CIE1976L color measured from the sheet surface * a * b *The L value in the color space is 35, and the color was measured on the colored substrate layer using CIE1976L. * a * b * The L value in the color space was set to 85. Otherwise, the decorative sheet of Example 4 was obtained in the same manner as in Example 1. (Example 5) CIE1976L color measured from the sheet surface * a * b * The L value in the color space is 20, and the color was measured on the colored raw material layer using CIE1976L. * a * b * The L value in the color space was set to 90. Otherwise, the decorative sheet of Example 5 was obtained in the same manner as in Example 1. (Example 6) CIE1976L color measured from the sheet surface * a * b * The L value in the color space is 25, and the color was measured on the colored raw material layer using CIE1976L. * a * b * The L value in the color space was set to 90. Otherwise, the decorative sheet of Example 6 was obtained in the same manner as in Example 1. (Example 7) In the printing ink used for printing the pattern layer, an azomethine azo-based organic black pigment was used instead of perylene black. Otherwise, the decorative sheet of Example 7 was obtained in the same manner as in Example 1. (Example 8) In the printing ink used for printing the pattern layer, a titanium-based organic black pigment was used instead of perylene black. Otherwise, the decorative sheet of Example 8 was obtained in the same manner as in Example 1. (Example 9) In the printing ink used for printing the pattern layer, an iron oxide-based organic black pigment was used instead of perylene black. Otherwise, the decorative sheet of Example 9 was obtained in the same manner as in Example 1. (Example 10) In the printing ink used for printing the pattern layer, a composite oxide-based organic black pigment was used instead of perylene black. Otherwise, the decorative sheet of Example 10 was obtained in the same manner as in Example 1.

[0084] (Comparative Example 1) In the printing ink used for printing the pattern layer, carbon black was used instead of perylene black. Otherwise, a decorative sheet of Comparative Example 1 was obtained in the same manner as in Example 6. (Comparative Example 2) The L value in the CIE1976L * a * b * color space was set to 10, and the CIE1976L * a * b * L value in the color space was set to 85. Otherwise, a decorative sheet of Comparative Example 2 was obtained in the same manner as in Example 1. (Comparative Example 3) The CIE1976L measured from the sheet surface * a * b * L value in the color space was set to 20, and the CIE1976L * a * b * L value in the color space was set to 80. Otherwise, a decorative sheet of Comparative Example 3 was obtained in the same manner as in Example 1. (Comparative Example 4) The CIE1976L measured from the sheet surface * a * b * L value in the color space was set to 40, and the CIE1976L * a * b * L value in the color space was set to 85. Otherwise, a decorative sheet of Comparative Example 4 was obtained in the same manner as in Example 1.

[0085] <Color measurement> The CIE1976L * a * b * L value in the color space was measured. For the decorative sheets of each example and comparative example, using a D65 light source, the reflection chromaticity was measured for the entire sheet from the surface protection layer side to obtain the L value from the outermost surface of the sheet. Also, for the coloring original layer before printing the pattern layer, the reflection chromaticity was measured to obtain the L value of the coloring original layer alone. Specifically, using an X-rite spectrophotometer (530JP / LP), the above-mentioned reflectivity was measured on a white background of BYK-GARDNER opacity test paper (byko-chart high brightness 2A) under the D65 light source, which is a standard light source defined by the International Commission on Illumination (CIE), and CIE1976L * a * b * The L value in the color space was obtained.

[0086] <Rating> The decorative sheets obtained in the above examples and comparative examples were evaluated for solar reflectance (heat shielding performance), weather resistance, heat storage capacity (reduction of heat storage effect), design, and presence or absence of deformation using the following method. The evaluation results are shown in Table 1.

[0087] (Solar reflectance) The solar reflectance of the decorative sheets in each example and comparative example was measured using the solar reflectance measurement method for coating films specified in JIS K5602 to evaluate their heat shielding performance. For each example and comparative decorative sheet, measurements were taken on the decorative material obtained by laminating a PVC substrate to the side of the colored raw material layer (colored PVC sheet) opposite to the patterned layer. The measurement was performed using a Hitachi High-Technologies Corporation U-4100 spectrophotometer. Specifically, the reflectance of each example and comparative decorative material for light in the wavelength range of 780 nm to 2500 nm was measured to evaluate its heat-shielding properties. The evaluation criteria are as follows. ○: The measured reflectance is 30% or higher, indicating good heat shielding properties. ×: The measured reflectance is less than 30%, indicating insufficient heat shielding. In this embodiment, "〇" was considered a passing grade.

[0088] (Weather resistance test) The appearance of the decorative sheets in each example and comparative example after the accelerated weathering test was visually evaluated according to the following criteria. The accelerated weathering test was conducted using a metal weather tester (KU-R5DCI-A) manufactured by Daipla Wintes Co., Ltd., with a black panel temperature of 63°C and an illuminance of 65 mW / cm². 2 The experiment was conducted in 21 cycles (504 hours), with each cycle consisting of 20 hours of UV irradiation and 4 hours of condensation. The evaluation criteria are shown below. ◎: The color difference before and after the weather resistance test is less than △E=2. ○: The color difference before and after the weather resistance test is △E = 2 or more and 4 or less. △: In some areas, the color difference before and after the weather resistance test is △E=4 or greater. ×: Overall, the color difference before and after the weather resistance test is △E=4 or greater. In this embodiment, a score of "△" or higher was considered acceptable.

[0089] (Heat storage performance evaluation) Each example and comparative example's decorative sheet (size: 100mm x 100mm) was laminated onto a 2mm thick white PVC board (size: 100mm x 100mm, manufactured by Takiron CI Co., Ltd., ES-9700A) using a urethane resin adhesive (manufactured by No Tape Industry Co., Ltd., No. 5211). The laminated white PVC sheet was attached to a 6.5mm thick foam (size: 100mm x 100mm, manufactured by Sanfuku Kogyo Co., Ltd., 3F-10, thermal conductivity: 0.052 W / mK) using double-sided tape, and the resulting laminate was used to create the test specimen. At that time, a thermocouple was placed between the double-sided tape in the center of the white PVC sheet, allowing the temperature of the back of the white PVC sheet (test specimen temperature) to be measured with a data logger. An artificial sunlight lamp (XC-100EFSS, manufactured by Seric Co., Ltd.) was installed while measuring the illuminance of the test specimen surface (decorative sheet surface) with an illuminance meter (FT3424, manufactured by HIOKI E.E. CORPORATION) to 100,000 lux, and then the lamp was turned off. At this time, the optical axis of the artificial sunlight lamp was positioned so that it struck the center of the test specimen and was perpendicular to the surface of the test specimen. The test was started by irradiating the test specimen with artificial sunlight from a room temperature and a test specimen temperature of 23°C. The evaluation criteria (overall evaluation) are shown below. ◎: The temperature of the test specimen is below 70°C (〇) 30 minutes and 60 minutes after the start of the test. ○: The temperature of the test specimen 30 minutes after the start of the test is less than 70°C (○), and the temperature of the test specimen 60 minutes after the start of the test is 70°C or higher (×). ×: The test specimen temperature is 70°C or higher 30 minutes after the start of the test (×). In this embodiment, an overall evaluation of "〇" or higher was considered a passing grade.

[0090] (Design) The perceived blackness of the decorative sheets in each example and comparative example was subjectively evaluated by 10 people, and the evaluation was as follows for each number of people who judged them to be sufficiently black. The evaluation criteria are as follows. ◎◎◎: 10 people judged it to be sufficiently black. ◎◎: 9 people judged it to be sufficiently black. ◎: 7-8 people judged it to be sufficiently black. ○: 5-6 people judged it to be sufficiently black. △: 1 to 4 people judged it to be sufficiently black. ×: 0 people judged it to be sufficiently black. In this example, a score of "△" or higher was considered a passing grade.

[0091] (Deformation evaluation) Each of the decorative sheets (size: 100mm x 100mm) for each example and comparative example was laminated onto a 2mm thick white PVC board (size: 100mm x 100mm, manufactured by Takiron CI Co., Ltd., ES-9700A) using a urethane resin adhesive (manufactured by No Tape Industry Co., Ltd., No. 5211) to prepare a test specimen. The white PVC board side was placed face down on a 6.5mm thick foam (size: 100mm x 100mm, manufactured by Sanfuku Industry Co., Ltd., 3F-10, thermal conductivity: 0.052 W / mK). An artificial sunlight lamp (XC-100EFSS, manufactured by Seric Co., Ltd.) was installed while measuring the illuminance on the surface of the test specimen with an illuminance meter (FT3424, manufactured by HIOKI E.E. CORPORATION) to 100,000 lux, and then the lamp was turned off. At this time, the optical axis of the artificial sunlight lamp was positioned so that it struck the center of the test specimen and was perpendicular to the surface of the test specimen. The test was started by irradiating the test specimen with artificial sunlight from a room temperature of 23°C. The evaluation criteria are as follows. ○: No deformation was observed visually 60 minutes after the start of the test. △: Slight deformation was observed visually 60 minutes after the start of the test. ×: Significant deformation was observed visually 60 minutes after the start of the test. In this example, a score of "△" or higher was considered a passing grade.

[0092] The evaluation results for each of the above, along with the composition of the decorative sheet, are shown in Table 1. Note that in Table 1, CIE1976L * a * b * The color space is simply referred to as "Lab color space."

[0093] [Table 1]

[0094] As can be seen from Table 1, in the decorative sheets of Examples 1 to 10, the pattern layer contains azomethine azo pigment, perylene pigment, titanium black pigment, black iron oxide pigment, or black composite oxide pigment as a black pigment, and when the decorative sheet is colored from the outermost surface side, CIE1976L * a * b * L in color space * The value is between 15 and 35, and when the colored raw material layer is measured individually, it is CIE1976L * a * b * L in color space *The value is 85 or higher. As a result, the solar reflectance (heat shielding) of the decorative sheets in Examples 1 to 10 all passed the test ("○"). Furthermore, because the transparent resin layer contains an ultraviolet absorber, the weather resistance also passed the test ("○"). In addition, the evaluation of heat storage (reduction of heat storage effect) and design (black color) also passed, and the deformation evaluation also passed. In other words, it was found that the decorative sheets in Examples 1 to 10 were excellent in all evaluation items. Therefore, even when formed using polyvinyl chloride resin, it is possible to have heat shielding properties while being black and suppress deformation due to solar radiation absorption.

[0095] On the other hand, in Comparative Example 1, carbon black, which has low reflectivity in the near-infrared light region, was used as the black pigment, resulting in a reduction in solar reflectance (heat shielding) and an increase in heat storage, leading to a failure in evaluation. Furthermore, deformation was observed as a result, resulting in a failure in deformation evaluation. In addition, in Comparative Example 2, the color measured from the sheet surface using CIE1976L * a * b * The L value in the color space was less than 15, resulting in very low brightness, which led to high infrared absorption and a failure in the heat storage evaluation. Therefore, the deformation evaluation also failed, similar to Comparative Example 1. Furthermore, in the decorative sheet of Comparative Example 3, the CIE1976L of the colored raw material layer alone was also found to be insufficient. * a * b * The L value in the color space was less than 85, resulting in insufficient brightness and low near-infrared reflectivity, which led to a failure in the heat storage evaluation. Therefore, the deformation evaluation also failed, similar to Comparative Example 1. In the decorative sheet of Comparative Example 4, the color measured from the sheet surface using CIE1976L... * a * b * The L value in the color space exceeded 35, resulting in high brightness, which meant that the aesthetic appeal (black) was not adequately evaluated.

[0096] Furthermore, the decorative sheets and decorative materials of this disclosure are not limited to the embodiments and examples described above, and various modifications are possible as long as they do not impair the features of the invention.

[0097] Furthermore, for example, this disclosure can take the following configuration. (1) A decorative sheet comprising at least a colored base layer, a pattern layer, and a transparent resin layer laminated in this order, wherein the colored base layer is made of colored polyvinyl chloride resin, the transparent resin layer is made of transparent polyvinyl chloride resin and contains an ultraviolet absorber, and the pattern layer contains one or more of the following as black pigments: azomethine azo pigment, perylene pigment, titanium black pigment, black iron oxide pigment, or black composite oxide pigment, and when the decorative sheet is colored from the outermost surface side, it conforms to CIE1976L * a * b * L in color space * The value is between 15 and 35, and when the colored raw material layer is measured individually, it is CIE1976L * a * b * L in color space * A decorative sheet characterized by having a value of 85 or higher. (2) The decorative sheet according to (1) above, characterized in that when solar reflectance measurements are taken from the outermost surface of the sheet using a spectrophotometer conforming to JIS K 5602, the solar reflectance is 30% or more in the entire wavelength range from 300 nm to 2500 nm. (3) The aforementioned pattern layer does not use carbon black as the black pigment. A decorative sheet as described in either item (1) or (2) above, characterized in that it is a decorative sheet as described in either item (1) or (2) above. (4) The decorative sheet according to any one of (1) to (3) above, characterized in that the pattern layer contains at least one pigment from among isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium dioxide. (5) The decorative sheet according to any one of (1) to (4) above, characterized in that the binder resin contained in the pattern layer is a vinyl chloride-vinyl acetate copolymer, an acrylic resin alone, or a mixture of a vinyl chloride-vinyl acetate copolymer and an acrylic resin. (6) The decorative sheet according to any one of (1) to (5) above, characterized in that the colored base layer contains one or more inorganic substances from among calcium carbonate, titanium oxide, carbon black, silica, chromium, antimony, titanium composites, and other oxides. (7) The decorative sheet according to any one of (1) to (6) above, characterized in that the transparent resin layer contains at least one of a benzotriazole-based ultraviolet absorber or a triazine-based ultraviolet absorber as the ultraviolet absorber. (8) A surface protective layer is laminated on the transparent resin layer. The decorative sheet according to any one of (1) to (7) above, characterized in that the surface protective layer contains a triazine-based ultraviolet absorber and a light stabilizer. (9) The decorative sheet according to (8) above, characterized in that an embossed portion is formed on the surface side of the surface protective layer. (10) A decorative sheet according to any one of the above items (1) to (9), characterized in that the sheet temperature after 60 minutes of irradiation with an illuminance of 100,000 lux from the sheet surface using an artificial sunlight lamp is less than 70°C. (11) A decorative sheet according to any one of the above items (1) to (9), characterized in that the sheet temperature after 30 minutes of irradiation with an illuminance of 100,000 lux from the sheet surface using an artificial sunlight lamp is less than 70°C. (12) Base material for decorative materials, A decorative material comprising a decorative sheet according to any one of the above items (1) to (11) bonded to the aforementioned decorative material substrate. [Industrial applicability]

[0098] This disclosure is a technology suitable for building exteriors and semi-exterior building materials, such as entrance doors, their frames, window frames, and bay window counters. [Explanation of Symbols]

[0099] 1 Decorative sheet 2 Colored original fabric layer 3 Pattern Layers 4 Transparent resin layer 5 Surface protective layer 6 Embossed area 7 Adhesive layer 8 Base material 10 Decorative materials

Claims

1. A decorative sheet in which at least a colored base layer, a pattern layer, and a transparent resin layer are laminated in this order, The aforementioned colored base layer is formed of colored polyvinyl chloride resin. The transparent resin layer is formed of transparent polyvinyl chloride resin and contains an ultraviolet absorber. The aforementioned pattern layer contains one or more of the following as black pigments: azomethine azo pigment, perylene pigment, titanium black pigment, black iron oxide pigment, or black composite oxide pigment. When the decorative sheet is colored from the outermost surface side of the sheet, CIE1976L ＊ a ＊ b ＊ L in color space ＊ The number is between 15 and 35. When the aforementioned colored raw material layer was measured individually, CIE1976L ＊ a ＊ b ＊ L in color space ＊ The value is 85 or higher. A decorative sheet characterized by the following features.

2. When solar reflectance measurements are taken from the outermost surface of the sheet using a spectrophotometer compliant with JIS K 5602, the solar reflectance is 30% or more across the entire wavelength range from 300 nm to 2500 nm. The decorative sheet according to feature 1.

3. The aforementioned pattern layer does not use carbon black as the black pigment. The decorative sheet according to feature 2.

4. 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 3.

5. The binder resin contained in the pattern layer is a vinyl chloride-vinyl acetate copolymer, an acrylic resin alone, or a mixture of a vinyl chloride-vinyl acetate copolymer and an acrylic resin. The decorative sheet according to feature 4.

6. The aforementioned colored raw material layer contains one or more inorganic substances from among calcium carbonate, titanium oxide, carbon black, silica, chromium, antimony, titanium composites, and other oxides. The decorative sheet according to feature 5.

7. The transparent resin layer contains at least one of a benzotriazole-based ultraviolet absorber or a triazine-based ultraviolet absorber as the ultraviolet absorber. The decorative sheet according to feature 6.

8. A surface protective layer is laminated on the transparent resin layer. The aforementioned surface protective layer contains a triazine-based ultraviolet absorber and a light stabilizer. The decorative sheet according to feature 7.

9. An embossed portion is formed on the surface side of the aforementioned surface protective layer. The decorative sheet according to feature 8.

10. The sheet temperature after 60 minutes of illumination at an intensity of 100,000 lux from the sheet surface using an artificial sunlight lamp is less than 70°C. The decorative sheet according to feature 9.

11. The sheet temperature after 30 minutes of illumination at an intensity of 100,000 lux from the sheet surface using an artificial sunlight lamp is less than 70°C. The decorative sheet according to feature 9.

12. Base material for decorative materials, A decorative sheet according to any one of claims 1 to 11, which is bonded to the aforementioned decorative material substrate, A decorative material characterized by having the following features.

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