Cosmetic material and method for manufacturing the cosmetic material

Abstract

To provide a decorative material which can impart excellent three-dimensional feeling and has good expression of a natural material.SOLUTION: A decorative material comprises a surface protective layer (A), a colored layer (B) and a base material (C), and has a recess on at least one main surface side of the base material (C). The colored layer (B) is in the recess. The surface protective layer (A) covers at least the colored layer (B). A delustering agent content ratio S(projection) / S(recess) is 0.85 or less, where S(projection) is the total content (pts.mass) of a delustering agent based on 100 pts.mass of resin contained in a resin composition forming a layer present in the projection, and S (recess) is the total content (pts.mass) of the delustering agent based on 100 pts.mass of resin contained in a resin composition forming a layer present in the recess.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cosmetic material and a method for producing the cosmetic material. [Background technology]

[0002] Decorative materials are widely used to decorate interior and exterior materials such as furniture and fixtures; wall surfaces of buildings; indoor space surfaces such as floors and ceilings; surfaces of fixtures such as waist walls, moldings, and lintels; outdoor surfaces such as exterior walls, roofs, door pockets, and eaves ceilings of buildings; surfaces of outdoor structures such as fences and walls; indoor or outdoor surfaces of fixtures such as window frames, door frames, doors, and partitions; surfaces of furniture such as chests of drawers and cupboards; interior or exterior surfaces of vehicles such as automobiles, railway cars, ships, and aircraft; and surfaces of various home appliances, office equipment, etc., and in recent years, there has been a demand for materials that can impart a three-dimensional effect to enhance the decorative effect. As a method for imparting a three-dimensional effect, for example, a decorative board has been known in which the shape of the wood structure of the vessel portion is embossed, the embossed portion is colored with a coloring paint by a wiping method, and then a top coat is applied (Patent Document 1). Other known methods include a method using a surface protective layer containing inorganic particles (Patent Document 2) and a method combining an embossed uneven pattern with a surface protective layer containing a filler (Patent Document 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 56-164859 [Patent Document 2] Japanese Patent Application Laid-Open No. 2015-77709 [Patent Document 3] Japanese Patent Application Publication No. 2019-209499 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] The decorative panel of Patent Document 1 gives the duct section a three-dimensional appearance by embossing and wiping, but because the entire decorative panel has a glossy finish (high gloss), it gives a strong artificial impression and lacks a three-dimensional appearance, so the design is insufficient when it is desired to express natural objects such as wood grain. The decorative sheet of Patent Document 2 has a flat pattern layer and further uses a surface protective layer containing inorganic particles etc. to improve the sense of three-dimensional design, but because the entire decorative sheet has a similar matte feel (low gloss), it gives a strong artificial impression and weak three-dimensionality.

[0005] The decorative sheet of Patent Document 3 is embossed on a laminate having a picture pattern layer, and a second surface coating layer is formed by gravure coating using a printing plate that matches the picture pattern layer. The second surface coating layer contains acrylic beads, resulting in a matte finish. In this way, a decorative sheet is obtained with low-gloss convex portions that are distinct from the concave portions formed by embossing. However, alignment is required during production, which can complicate the manufacturing process and reduce the design quality when alignment is insufficient. Furthermore, the concave portions formed in the embossing process are glossier than the convex portions, which makes it difficult to achieve a sufficient three-dimensional effect. An object of the present invention is to provide a cosmetic material that can impart an excellent three-dimensional effect and that can effectively express natural objects. [Means for solving the problem]

[0006] In order to solve the above problems, the inventors focused on the total content of the matting agent contained in the resin composition that forms the layers present in the concave and convex portions of the decorative material, and discovered that by examining the matting agent content ratio, it is possible to impart an excellent three-dimensional effect and obtain a decorative material that has a good representation of natural objects. That is, the present invention provides the following [1] to [5].

[0007] [1] A surface protective layer (A), a colored layer (B), and a substrate (C), The substrate (C) has a recess on at least one main surface side, The colored layer (B) is disposed in the recess, The surface protective layer (A) is provided so as to cover at least the colored layer (B), the total content (parts by mass) of the matting agent relative to 100 parts by mass of the resin contained in the resin composition forming the layer present in the convex portion, S (convex); A decorative material in which the total content (mass parts) of matting agent per 100 mass parts of resin contained in the resin composition that forms the layer present in the recess, S(convex) / S(concave), satisfies a matting agent content ratio S(convex) / S(concave) of 0.85 or less. [2] The decorative material according to [1], wherein the arithmetic mean roughness (Ra) of the bottom surface of the recess is 0.10 μm or more.

[0008] [3] The decorative material according to [1] or [2], wherein the ratio of the total area of ​​the recessed regions in a plan view to the area of ​​the main surface of the substrate (C) is 10% or more. [4] The maximum depth of the concave region (i) is Y i and the maximum depth in the recessed region (i+1) different from the recessed region (i) is Y i+1 When Y i ≠Y i+1 The decorative material according to any one of [1] to [3], wherein there are recessed regions (i) and recessed regions (i+1) that satisfy the condition: [5] The decorative material according to any one of [1] to [4], wherein at least some of the recessed areas have recess depths that vary within the same recessed area. [Effects of the Invention]

[0009] The decorative material of the present invention exhibits an excellent three-dimensional effect and is excellent in expressing natural objects. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic plan view of the main surface side of a decorative material showing one embodiment of the decorative material of the present invention. FIG. [Figure 2] 2 is a schematic cross-sectional view of a cross section including line AA' in FIG. 1 and parallel to the Z axis in FIG. [Figure 3]FIG. 3 is a schematic cross-sectional view of the substrate (C) after the embossing step corresponding to FIG. 2. [Figure 4] FIG. 10 is a schematic diagram of another embodiment of the cross section of the substrate (C) after the embossing step. [Figure 5] 1 is a schematic diagram showing one embodiment of a decorative material of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] [Decorative materials] The decorative material of the present invention has at least a surface protective layer (A), a colored layer (B), and a substrate (C). Figure 1 is a schematic plan view for explaining the present invention. In the present invention, "plan view" means viewing the decorative material of the present invention in a planar direction from the side having the recesses (surface side). A typical example of "plan view" is, as explained with reference to FIG. 1, a case in which the line of sight is aligned with the normal direction Z of the surface of the decorative material 1 having the recesses 20 (hereinafter sometimes simply referred to as the "surface"). However, "plan view" in the present invention is not limited to this form and also includes any case in which the decorative material of the present invention is viewed from the side (surface) of the surface having the recesses 20 in the originally expected line of sight. Furthermore, in the present invention, "cross-sectional view" means viewing a cross section of the decorative material of the present invention from the extension direction Y, parallel to the normal direction Z of the surface and perpendicular to the extension direction Y of the recesses 20, as shown in FIG. 2, and also includes any case in which the cross section is viewed from a direction in which at least the cross-sectional shape of the decorative material of the present invention can be seen.

[0012] The substrate (C) 12 has a recess 20 on at least one main surface side, has the colored layer (B) 11 in the recess, and has the surface protective layer (A) 10 so as to cover at least the colored layer (B).

[0013] The decorative material 1 of the present invention can create a visually three-dimensional appearance by means of the recesses, the colored layer (B), and the surface resin coating layer (A), or, if necessary, the decorative layer (E) described below, thereby forming a real or created design appearance and creating a sense of realism and luxury.

[0014] <S(convex) / S(concave)> In the present invention, it is necessary that S(convex) / S(concave) be 0.85 or less. More specifically, the total content (parts by mass) of the matting agent with respect to 100 parts by mass of the resin contained in the resin composition for forming the layer present in the convex portion, S(convex), and the total content (parts by mass) of the matting agent with respect to 100 parts by mass of the resin contained in the resin composition for forming the layer present in the concave portion, S(concave), satisfy 0.85 or less as the matting agent content ratio S(convex) / S(concave), whereby an excellent three-dimensional effect can be imparted, and a decorative material with good representation of natural objects can be obtained. In the present invention, the concave portion is a region that is recessed relative to the convex portion and is a region where the colored layer (B) is present. The convex portion is the original surface of the transparent resin layer (E) or the substrate (C) before performing an embossing process or the like described later, is a region that remains as it is after the embossing process, and is a region that does not include the colored layer (B) by a wiping process or the like described later.

[0015] By appropriately selecting S(convex) / S(concave), a difference in luster between the concave portion and the convex portion occurs, whereby the three-dimensional effect can be further enhanced. From the viewpoint of emphasizing the three-dimensional effect, it is necessary that S(convex) / S(concave) be 0.85 or less. Further, it is more preferably 0.83 or less, and still more preferably 0.82 or less. As S(convex) / S(concave) approaches 0, a difference in luster occurs. Therefore, the larger the value of S(concave), the better. However, if the content of the matting agent (B) in the colored layer (B) in the concave portion is increased too much in order to bring S(convex) / S(concave) close to 0, from the viewpoint of workability such as precipitation of the matting agent (B) from the colored coating liquid containing the matting agent in the manufacturing process described later, and from the viewpoint of the strength after curing, it is preferable that S(convex) / S(concave) be 0.10 or more, more preferably 0.30 or more, and still more preferably 0.50 or more.

[0016] Details of the layer present in the convex portion will be described later, and it is the surface protective layer (A), and may include a surface primer layer (D) as necessary. The layers present in the recesses will be described in detail later, but they are a surface protective layer (A) and a colored layer (B), and may contain a surface primer layer (D) as needed.

[0017] As will be described later, the surface protective layer (A) may contain a matting agent (A). When the matting agent (A) is contained, the content of the matting agent (A) in the surface protective layer (A) is M A (parts by mass). The colored layer (B) contains a matting agent (B), and the content of the matting agent (B) in the colored layer (B) is M B (parts by mass). When the decorative material of the present invention has a surface primer layer (D), the surface primer layer (D) may contain a matting agent (D), and when it does contain a matting agent (D), the content of the matting agent (D) in the surface primer layer (D) is M D (parts by mass).

[0018] The above S (convex) is M A or M A +M D The S(concave) is expressed as M A +M B or M A +M B +M D It is expressed as: Therefore, the matting agent content ratio S(convex) / S(concave) is M when the only layer containing a matting agent in the convex portion is the surface protective layer (A) and the only layers containing a matting agent in the concave portion are the surface protective layer (A) and the colored layer (B). A / (M A +M B ), and when the layers containing a matting agent in the convex portions are only the surface protective layer (A) and the surface primer layer (D), and the layers containing a matting agent in the concave portions are only the surface protective layer (A), the colored layer (B), and the surface primer layer (D), (M A +M D ) / (M A +M B +M D) It is expressed as:

[0019] < <M A / (M A +M B )>> Matting agent content ratio M A / (M A +M B ) is appropriately selected to create a difference in gloss between the surface protective layer (A) and colored layer (B) of the recessed portions and the surface protective layer (A) of the protruding portions, thereby further enhancing the three-dimensional effect. To emphasize the three-dimensional effect, use M A / (M A +M B ) is preferably 0.85 or less, more preferably 0.80 or less, and even more preferably 0.78 or less.

[0020] M A / (M A +M B ) approaches 0, the gloss difference increases, so M B The larger the value of is, the better, but M A / (M A +M B ) to approach 0, M B If M is too large, the matting agent (B) may precipitate from the colored coating liquid containing the matting agent in the manufacturing process described later, and from the viewpoint of strength after curing, it is necessary to A / (M A +M B ) is preferably 0.10 or more, more preferably 0.30 or more, and even more preferably 0.50 or more.

[0021] M A / (M A +M B ) can be adjusted, for example, by the thickness of the surface resin coating layer (A) and the colored layer (B), the particle diameters of the matting agents (A) and (B) described later, the depth of the recesses, the width of the recesses, etc. <<(M A +M D ) / (M A +M B +M D )>> In the present invention, when the surface primer layer (D) is present, the content M of the matting agent (D) in the surface primer layer (D) D Rather than determining (parts by mass) alone, (M A +M D ) / (MA +M B +M D ) is preferably optimized. Matting agent content ratio (M A +M D ) / (M A +M B +M D ) is appropriately selected, and a difference in gloss is created between the surface protective layer (A), the colored layer (B) and the surface primer layer (D) in the recessed portions, and between the surface protective layer (A) and the surface primer layer (D) in the protruding portions, thereby further enhancing the three-dimensional effect. From the viewpoint of emphasizing the three-dimensional effect (M A +M D ) / (M A +M B +M D ) is preferably 0.85 or less, more preferably 0.83 or less, and even more preferably 0.82 or less.

[0022] (M A +M D ) / (M A +M B +M D ) approaches 0, the gloss difference increases, so M B The larger the value of is, the better, but (M A +M D ) / (M A +M B +M D ) to approach 0, M B If (M) is too large, the matting agent (B) may precipitate from the colored coating liquid containing the matting agent in the manufacturing process described later, and from the viewpoint of strength after curing, A +M D ) / (M A +M B +M D ) is preferably 0.10 or more, more preferably 0.30 or more, and even more preferably 0.50 or more.

[0023] < <M A >> In the present invention, M A and M BIt is preferable to optimize these relationships rather than determining each independently. The content M of the matting agent (A) in the surface protective layer (A) A (parts by mass) is the content M of the matting agent (B) in the colored layer (B) described later. B It can be determined from the relationship between Content M A By increasing the content of the matting agent (A) and making the gloss difference between the surface protective layer (A) and the colored layer (B) at a certain level or more, excellent three-dimensional effect is obtained. Therefore, the content of the matting agent (A) is preferably 28.0 parts by mass or less, more preferably 24.0 parts by mass or less, and even more preferably 20.0 parts by mass or less, and the content of the matting agent (A) is 5.0 μg / cm 2 It is more preferable that the gloss level is less than M. A On the other hand, from the viewpoint of adjusting the gloss difference, the lower limit is more preferably 5.0 parts by mass or more, and even more preferably 8.0 parts by mass or more. A is M A / (M A +M B ) is preferably adjusted appropriately to optimize the

[0024] < <M B >> The content C (parts by mass) of the matting agent (B) in the colored layer (B) is A It is determined from the perspective of three-dimensional effect in relation to Content M B From the viewpoint of increasing the difference in gloss with the surrounding area, B is preferably 3.0 parts by mass or more, more preferably 4.0 parts by mass or more, and preferably 5.0 parts by mass or more, and from the viewpoint of workability, such as suppressing precipitation of the matting agent (B) from the colored coating liquid containing the matting agent in the production process described below, and from the viewpoint of uniformity of the colored layer (B), it is preferably 35.0 parts by mass or less, more preferably 25.0 parts by mass or less, and even more preferably 15.0 parts by mass or less.

[0025] < <M D >> Matting agent (D) content M of surface primer layer (D) D (parts by mass) is the same as the above M A and M B It is determined from the perspective of three-dimensional effect in relation to Content M D From the viewpoint of increasing the difference in gloss with the surrounding area, D is preferably 3.0 parts by mass or more, more preferably 4.0 parts by mass or more, and preferably 5.0 parts by mass or more, and from the viewpoint of workability, such as suppressing precipitation of the matting agent (D) from the surface primer layer coating liquid containing the matting agent in the production process described below, and from the viewpoint of uniformity of the surface primer layer (D), it is preferably 20.0 parts by mass or less, more preferably 15.0 parts by mass or less, and even more preferably 10.0 parts by mass or less.

[0026] <Appearance, shape, etc. of decorative material> The appearance and design of the decorative material 1 can be expressed on tile, brickwork, ceramics, glass, stone materials such as marble, granite, and sandstone, and wood materials such as cedar, pine, cypress, oak, and teak. When reproducing the appearance and design of fine irregularities superimposed on the colors, patterns, and protrusions inherent to these materials, it is also preferable to provide a decorative layer, which will be described later.

[0027] The shape of the decorative material of the present invention is not particularly limited and may be appropriately selected as desired. For example, it may be flat, have a curved surface, or may be non-flat, such as have corners. Although a flat decorative material is shown in Figure 1, the shape of the decorative material of the present invention is not limited to this. In consideration of ease of production of the cosmetic material, its intended use, etc., a flat shape is preferable.

[0028] <Layer structure of decorative material> The decorative material of the present invention may have layers other than the surface protective layer (A), colored layer (B), and substrate (C), and typical layer configurations are shown in Figure 5, etc., but examples include the following laminated configurations (1) to (6). Note that " / " indicates the layer interface, and when the colored layer (B) and substrate (C) are in contact, the surface of the substrate (C) on the surface protective layer (A) side is the main surface (H) of the decorative material, or when the colored layer (B) and transparent resin layer (E) are in contact, the surface of the transparent resin layer (E) on the surface protective layer (A) side is the main surface (H) of the decorative material. (1) Surface protective layer (A) / colored layer (B) / base material (C) (2) Surface protective layer (A) / colored layer (B) / transparent resin layer (E) / base material (C) (3) Surface protective layer (A) / surface primer layer (D) / colored layer (B) / transparent resin layer (E) / substrate (C) (4) Surface protection layer (A) / Colored layer (B) / Transparent resin layer (E) / Decorative layer (F) / Base material (C) (5) Surface protective layer (A) / surface primer layer (D) / colored layer (B) / transparent resin layer (E) / decorative layer (F) / substrate (C) (6) Surface protective layer (A) / surface primer layer (D) / colored layer (B) / transparent resin layer (E) / decorative layer (F) / primer layer (G) / substrate (C)

[0029] The surface protective layer (A), the colored layer (B) and the substrate (C) will be described below, followed by a description of other layers that may be used as needed.

[0030] <Surface protective layer (A)> The decorative sheet of the present invention has a surface protective layer (A), which provides an excellent three-dimensional effect. Furthermore, the decorative sheet has improved scratch resistance and can achieve surface properties such as high strength. The surface protective layer (A) may be formed so as to cover the colored layer (B), but as will be described later, it may be formed directly on the base material (C) at the convex portions of the base material (C). In the present invention, the term "covering" includes covering the entire surface as well as covering a part of the surface.

[0031] Since the surface protective layer (A) is arranged on the side of the colored layer (B) opposite to the side on which the substrate (C) is provided (hereinafter also referred to as the "surface side"), it is preferable that visible light passes through the surface protective layer (A) to the extent that the colored layer (B) can be seen. Examples of the curable resin composition include a thermosetting resin composition containing a thermosetting resin, an ionizing radiation curable resin composition containing an ionizing radiation curable resin, and a mixture thereof. Among them, an ionizing radiation curable resin composition is preferred from the viewpoint of increasing the crosslink density of the surface protective layer and improving surface properties such as scratch resistance. Furthermore, among ionizing radiation curable resin compositions, an electron beam curable resin composition is more preferred from the viewpoint of being able to be applied without a solvent and being easy to handle.

[0032] A thermosetting resin composition is a composition containing at least a thermosetting resin, and is a resin composition that cures when heated. Examples of thermosetting resins include acrylic resins, urethane resins, phenolic resins, urea-melamine resins, epoxy resins, unsaturated polyester resins, and silicone resins. In a thermosetting resin composition, a curing agent is added to the curable resin as needed.

[0033] The ionizing radiation-curable resin composition is a composition containing a compound having an ionizing radiation-curable functional group (hereinafter also referred to as "ionizing radiation-curable compound"). The ionizing radiation-curable functional group is a group that crosslinks and cures upon irradiation with ionizing radiation, and preferred examples include functional groups having an ethylenic double bond, such as a (meth)acryloyl group, a vinyl group, or an allyl group. In this specification, the term "(meth)acryloyl group" refers to an acryloyl group or a methcroyl group. In addition, in this specification, the term "(meth)acrylate" refers to an acrylate or a methacrylate. Furthermore, ionizing radiation refers to electromagnetic waves or charged particle beams that have an energy quantum capable of polymerizing or crosslinking molecules. Typically, ultraviolet (UV) rays or electron beams (EB) are used, but it also includes other electromagnetic waves such as X-rays and gamma rays, and charged particle beams such as alpha rays and ion beams. Specifically, the ionizing radiation curable compound can be appropriately selected from polymerizable monomers and polymerizable oligomers that have been conventionally used as ionizing radiation curable resins.

[0034] As the polymerizable monomer, a (meth)acrylate monomer having a radically polymerizable unsaturated group in the molecule is preferred, and among them, a polyfunctional (meth)acrylate monomer is preferred. Here, "(meth)acrylate" means "acrylate or methacrylate." Examples of polyfunctional (meth)acrylate monomers include (meth)acrylate monomers having two or more ionizing radiation-curable functional groups in the molecule, and having at least a (meth)acryloyl group as the functional group.

[0035] Examples of polymerizable oligomers include (meth)acrylate oligomers having two or more ionizing radiation-curable functional groups in the molecule, and having at least a (meth)acryloyl group as the functional group, such as urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers, polyester (meth)acrylate oligomers, polyether (meth)acrylate oligomers, polycarbonate (meth)acrylate oligomers, and acrylic (meth)acrylate oligomers. Further examples of polymerizable oligomers include highly hydrophobic polybutadiene (meth)acrylate oligomers having (meth)acrylate groups in the side chains of polybutadiene oligomers, silicone (meth)acrylate oligomers having polysiloxane bonds in the main chain, aminoplast resin (meth)acrylate oligomers obtained by modifying aminoplast resins having many reactive groups in a small molecule, and oligomers having cationically polymerizable functional groups in the molecule, such as novolac epoxy resins, bisphenol epoxy resins, aliphatic vinyl ethers, and aromatic vinyl ethers.

[0036] These polymerizable oligomers may be used alone or in combination of two or more. From the viewpoint of improving processing characteristics, scratch resistance, and weather resistance, one or more selected from urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers, polyester (meth)acrylate oligomers, polyether (meth)acrylate oligomers, polycarbonate (meth)acrylate oligomers, and acrylic (meth)acrylate oligomers are preferred, one or more selected from urethane (meth)acrylate oligomers and polycarbonate (meth)acrylate oligomers are more preferred, and urethane (meth)acrylate oligomers are even more preferred.

[0037] The thickness of the surface protective layer (A) is preferably 1.5 μm or more, more preferably 2.0 μm or more, and even more preferably 3.0 μm or more from the viewpoint of scratch resistance and weather resistance, and is preferably 30.0 μm or less, more preferably 15.0 μm or less, and even more preferably 10.0 μm or less from the viewpoint of processing properties. In the present application, the thickness of each layer, the depth of the recesses, etc. can be determined by observing the cross section of the decorative material with a scanning electron microscope (SEM). The thickness of each layer is measured at 10 random points and determined as the average value.

[0038] The surface protective layer (A) may further contain additives such as general-purpose ultraviolet absorbers, light stabilizers, antioxidants, initiators, anti-settling agents, dispersants, and colorants, if necessary.

[0039] <<Matting agent (A)>> In the surface protective layer (A), the matting agent (A) satisfies the S(convex) / S(concave) ratio of 0.85 or less as described above. By doing so, a difference in gloss from the surrounding area is generated, resulting in a visual sense of concavity and convexity, which can impart an excellent three-dimensional effect and improve the expression of natural objects. If this value exceeds 0.85, it is not preferable from the viewpoint of workability, such as the matting agent being precipitated from the coating liquid containing the matting agent during the manufacturing process, and from the viewpoint of strength after curing.

[0040] The matting agent (A) may be inorganic or organic particles, such as silica, alumina, aluminosilicate, kaolinite, calcium carbonate, barium sulfate, or glass. Examples of organic particles include acrylic resins, polycarbonate resins, urethane resins, urea resins, benzoguanamine resins, and benzoguanamine-melamine-formaldehyde condensates.

[0041] As the matting agent (A), silica particles are preferred from the viewpoint of having a high matting effect and being able to easily control the gloss. As the matting agent (A), one of the above-mentioned agents may be used alone, or two or more of them may be used in combination. The average particle size of the matting agent (A) may be determined with reference to the thickness of the surface protective layer (A). From the viewpoint of the matting effect and gloss control, it is preferably 0.5 μm or more, more preferably 1.0 μm or more, and even more preferably 7.0 μm or more, and from the viewpoint of the durability of the surface protective layer (A), it is preferably 10.0 μm or less, more preferably 9.0 μm or less, and even more preferably 7.0 μm or less. In this specification, the particle size of the matting agent is the average of values ​​measured using a Shimadzu laser diffraction particle size distribution analyzer "SALD-2100-WJA1" by an injection-type dry measurement method in which the powder to be measured is injected from a nozzle using compressed air and dispersed in the air for measurement.

[0042] <<Other additives>> The surface protective layer (A) may further contain additives such as general-purpose ultraviolet absorbers, light stabilizers, antioxidants, initiators, anti-settling agents, dispersants, and colorants, if necessary.

[0043] <Colored layer (B)> The colored layer (B) is provided in the recessed portions, and is a layer that imparts design to the decorative material of the present invention and gives the decorative material a three-dimensional appearance due to the difference in gloss from the surface protective layer (A). The decorative material of the present invention has recesses 20 and protrusions 21 as shown in Figure 1, but may also have a configuration in which a colored layer (B) 11 fills at least a portion of the depth direction of a plurality of independent recesses (A) as shown in Figure 2. This configuration can improve the design properties of the decorative material.

[0044] Furthermore, by using a dark colorant as the colorant, the recesses 20 can be made darker, and the contrast in brightness within the surface of the decorative material can be increased, thereby improving the three-dimensional effect. In the present invention, the term "dark color" refers to a color having a low lightness, specifically, a color having a low lightness measured in accordance with CIE (International Commission on Illumination) L * a * b * L in color space * value (hereinafter simply referred to as "L * The value of the saturation index (SRI) is preferably 40 or less, more preferably 35 or less, and even more preferably 30 or less. There is no particular lower limit, but the SRI is preferably 0 or more, more preferably 15 or more, even more preferably 18 or more, and particularly preferably 20 or more. In particular, low brightness, low color saturation such as dark gray, deep green, navy blue, black, deep purple, crimson, and brown are preferred.

[0045] Examples of colorants include inorganic pigments such as carbon black (ink), iron black, titanium white, antimony white, yellow lead, titanium yellow, red iron oxide, cadmium red, ultramarine blue, and cobalt blue; organic pigments such as quinacridone red, isoindolinone yellow, and phthalocyanine blue; and dyes.

[0046] Preferred binder resins constituting the colored layer (B) include acrylic resins, styrene resins, polyester resins, urethane resins, chlorinated polyolefin resins, vinyl chloride-vinyl acetate copolymers, polyvinyl butyral, alkyd resins, petroleum-based resins, ketone resins, epoxy resins, melamine resins, fluororesins, silicone resins, acrylic urethane resins, and rubber-based resins, with acrylic urethane resins being more preferred. The same resin as that constituting the surface protective layer (A) can be used. The resin constituting the colored layer (B) and the resin constituting the surface protective layer (A) may be the same type of matting agent or different types.

[0047] The colored layer (B) is formed by filling at least a portion of the recesses in the depth direction with a colorant. This filling can be achieved by applying a filler ink containing a colorant and a binder resin to the main surface of the substrate (C) having the recesses, and then scraping off the ink with a scraping blade such as a doctor blade. The amount of colorant filled into the recesses can be adjusted by adjusting the blade material, the angle at which the blade is applied, and the viscosity of the ink. The solvent is then removed by evaporation or other means to form the colored layer (B). The thickness of the colored layer (B) depends on the shape of the recesses. From the viewpoint of balancing colorability, three-dimensional effect, and weather resistance, the thickness is preferably 0.05 μm or more, more preferably 0.1 μm or more. From the viewpoint of ease of manufacturing, the thickness is preferably 15.0 μm or less, more preferably 10.0 μm or less, and even more preferably 5.0 μm or less.

[0048] <<Matting agent (B)>> The colored layer (B) contains a matting agent (B). The matting agent (B) may be the same as the matting agent (A). The matting agents (A) and (B) may be the same type of matting agent or different types.

[0049] <<Other additives>> The colored layer (B) may further contain additives such as general-purpose ultraviolet absorbers, light stabilizers, antioxidants, initiators, anti-settling agents, dispersants, and colorants, which will be described later.

[0050] <Base material (C)> The material of the substrate (C) is not particularly limited, but is preferably a plastic film or a composite of a plastic film and paper, in consideration of the ease of forming recesses by embossing, as described below. The plastic film may be a single layer or a laminate of multiple layers.

[0051] Specific examples of resins constituting plastic films include polyolefin resins such as polyethylene and polypropylene, vinyl resins such as vinyl chloride resin, vinylidene chloride resin, polyvinyl alcohol and ethylene-vinyl alcohol copolymer, polyester resins such as polyethylene terephthalate and polybutylene terephthalate, acrylic resins such as polymethyl methacrylate, polymethyl acrylate and polyethyl methacrylate, polystyrene, acrylonitrile-butadiene-styrene copolymer (ABS resin), cellulose triacetate, polycarbonate, etc. Among these, polyolefin resins, vinyl chloride resin, polyester resin, and acrylic resin are preferred from the viewpoints of various physical properties such as weather resistance and water resistance, printability, moldability, cost, etc.

[0052] The substrate (C) may be a transparent substrate or a colored substrate, or may be a laminated substrate in which a plurality of substrates are laminated.

[0053] The thickness of the substrate (C) is not particularly limited, but in order to ensure that the depth of the recesses is greater than the specified value, it is preferably 20.0 μm or more, more preferably 40.0 μm or more, and even more preferably 60.0 μm or more, and from the viewpoint of the strength and flexibility of the decorative material, it is preferably 200.0 μm or less, more preferably 180.0 μm or less, and even more preferably 160.0 μm or less.

[0054] In order to improve adhesion to a layer to be formed on the substrate (C), one or both surfaces of the substrate (C) may be subjected to an adhesion-facilitating treatment such as a physical treatment or a chemical surface treatment. Furthermore, the substrate (C) may have a primer layer (G) thereon, which will be described later.

[0055] <<Concave>> The substrate (C) of the present invention has a recess on at least one main surface side. Fig. 2 shows an example of a cross-sectional view of a cut surface including line A-A' in Fig. 1 and parallel to the Z axis in Fig. 1, but the embodiment of the present invention is not limited thereto.

[0056] FIG. 3 is a schematic diagram illustrating the state of the decorative material of FIG. 2 immediately after embossing the substrate (C) before the surface protective layer (A) and the colored layer (B) are formed. 3 is a main surface (H) 17 on one main surface side of the base material (C) before embossing. This is then embossed to form recesses 20.

[0057] In FIG. 3, for the sake of explanation, the depth changes discontinuously in a step-like manner, but the depth may change continuously as shown in FIG. In FIGS. 3 and 4, there is one deepest portion in the deepest recess, but there may be two or more deepest portions in the same recess. Light incident on the recesses 20 is easily scattered and attenuated by multiple reflections. As a result, the recesses 20 appear dark in the decorative material. Furthermore, if a dark-colored colored layer (B) is used, the recesses appear even darker, improving the three-dimensional effect.

[0058] The pattern presented by the recesses varies depending on the pattern presented by the decorative material. Examples of patterns that can be created by combining concave and convex portions include tiled patterns, brickwork patterns, wood grain patterns, marble patterns, fabric patterns, leather patterns, embossed letters, carved letters, geometric patterns, marquetry patterns, and patchwork patterns. The decorative material of the present invention is suitable for expressing natural objects, and among these, wood grain patterns, marble patterns, fabric patterns, leather patterns, and marquetry patterns are preferred. Furthermore, since the decorative material of the present invention has an excellent three-dimensional appearance, tiled patterns, brickwork patterns, embossed letters, carved letters, geometric patterns, marquetry patterns, and patchwork patterns are also preferred.

[0059] When the pattern presented by the recesses and protrusions is a tiled pattern, it is preferable that the recesses represent joint portions and the protrusions represent tile portions made of various materials and shapes. When the pattern presented by the recesses and protrusions is a brickwork pattern, it is preferable that the recesses represent joint portions and the protrusions represent brick portions.

[0060] When the pattern exhibited by the recesses and protrusions is a wood grain pattern, it is preferable that the recesses exhibit wood vessel parts, autumn wood parts, knot parts or figured parts, and the protrusions exhibit spring wood parts. When the pattern presented by the recesses and protrusions is a marbled pattern, it is preferable that the recesses are parts that present the boundaries of the marbled pattern, and the protrusions are parts that present the regions separated by the boundaries.

[0061] When the pattern presented by the recesses and protrusions is a fabric-like pattern, a leather-like pattern or a patchwork-like pattern, it is preferable that the recesses present patchwork-like stitched portions, recessed portions of a fabric pattern (texture) that imitates the grain or texture of fabric, or wrinkled recessed portions of a leather pattern that expresses the grain of leather, and the protrusions present fabric or leather portions.

[0062] When the pattern presented by the recessed and protruding portions is a character pattern or a geometric pattern, it is preferable that either the recessed or protruding portions present character portions or geometric pattern portions. When the pattern presented by the recesses and protrusions is a marquetry pattern, it is preferable that the recesses represent joint portions and the protrusions represent wood portions.

[0063] The pattern presented by the recesses is a vertical joint portion and a horizontal joint portion that are provided at approximately equal intervals when the protrusions are block-shaped, a shape that fills the spaces between the protrusions when the protrusions are irregular or similar shapes but different sizes, and a shape that represents the area necessary to express the geometric pattern or letters when the protrusions are geometric patterns or letters. The pattern presented by the recesses may be the same color as the pattern presented by the protrusions, or a different color, or may be a single color or multiple colors, and it is also preferable to create a three-dimensional effect by using a gradation.

[0064] The recesses preferably have a color tone corresponding to the pattern, for example, a color that imitates silicone, modified silicone, urethane, plaster, mortar, cement, or sealant.

[0065] The width of the recess is not particularly limited and may be determined appropriately depending on the desired design, but may be a constant width or may vary irregularly. When the width varies depending on the location, it may vary regularly or irregularly. From the viewpoint of three-dimensional effect, the average value is preferably 0.1 mm or more, more preferably 0.3 mm or more, even more preferably 0.5 mm or more, and even more preferably 0.8 mm or more, and from the viewpoint of manufacturing, it is preferably 20.0 mm or less, more preferably 10.0 mm or less, even more preferably 5.0 mm or less, and even more preferably 2.0 mm or less.

[0066] When it is desired to emphasize the joints, when using a decorative material with an exterior wall tiled look, a brickwork look, a geometric pattern look, or a letter pattern look, it is preferable to make the width wider, preferably 3.0 mm or more, more preferably 5.0 mm or more, even more preferably 7.0 mm or more, preferably 15.0 mm or less, more preferably 13.0 mm or less, even more preferably 10.0 mm or less,

[0067] When it is desired to emphasize the convex portions or when using the material as a decorative material with an interior tiled pattern, it is preferable to make the width narrower, preferably 0.5 mm or more, more preferably 0.8 mm or more, even more preferably 0.9 mm or more, even more preferably 1.0 mm or more, preferably 12.0 mm or less, more preferably 8.0 mm or less, even more preferably 6.0 mm or less, and even more preferably 4.0 mm or less.

[0068] In the case of decorative materials with a travertine marble pattern, decorative materials with a fabric pattern that imitates cloth or fabric-like patterns, decorative materials with a leather pattern that expresses leather grain, decorative materials with a hairline pattern, or decorative materials with a linear groove pattern, it is preferable to make the gap even narrower, preferably 0.01 mm or more, more preferably 0.02 mm or more, preferably 2.0 mm or less, more preferably 1.0 mm or less, even more preferably 0.5 mm or less, and even more preferably 0.3 mm or less.

[0069] The ratio of the total area of ​​the recesses in a plan view to the area of ​​the main surface of the substrate (C) is determined appropriately depending on the pattern presented by the decorative material, but from the viewpoints of improving visibility and luxury and expressing a three-dimensional effect and natural objects, it is preferably 10% or more, more preferably 20% or more, and even more preferably 50% or more, and from the viewpoint of production yield, it is preferably 90% or less, more preferably 85% or less, and even more preferably 80% or less. The ratio of the total area of ​​the recessed areas in a plan view to the area of ​​the main surface of the substrate (C) is calculated by measuring the areas of the recessed areas within five 10 cm x 10 cm square areas cut out at random from the decorative material and calculating the average value.

[0070] Furthermore, the number of recesses in the decorative material is preferably such that the average number of recesses within five 10 cm x 10 cm square areas arbitrarily cut out from the decorative material is 3 or more, more preferably 5 or more, even more preferably 10 or more, and even more preferably 20 or more. In addition,

[0071] In the cross-sectional shape of the recess, the arithmetic surface roughness (Ra) of the bottom surface is not particularly limited, but from the viewpoint of matting the gloss, making the recess more visually recognizable as a recess, and easily achieving a design with a higher texture, it is preferably 0.10 μm or more, more preferably 0.50 μm or more, and even more preferably 1.0 μm or more. If Ra becomes too large, it is preferably 10.0 μm or less, more preferably 8.0 μm or less, and even more preferably 5.0 μm or less, from the viewpoint of forming the colored layer (B) uniformly. In this specification, the arithmetic surface roughness Ra is the arithmetic mean roughness according to JIS B0601:2013 when the cutoff value is 0.8 mm, and is the average value of the arithmetic surface roughness Ra measured at any ten points on the bottom surface of the recess.

[0072] The recesses of the present invention are preferably formed by, for example, embossing. The embossing process can be preferably performed by a method commonly used in the art, but it is preferable to use, for example, a laser-engraved embossing plate for shaping. In such embossing, the edges of the recesses formed may have minute steps corresponding to the shape cut by a single laser shot. When calculating the width of the recesses and the width of the protrusions, the minute steps may be smoothed.

[0073] The embossing may be carried out by any suitable known method without any particular limitations. The temperature and pressure during embossing may be adjusted appropriately depending on the material of the decorative material. If the substrate and transparent resin layer of the decorative material are made of polyolefin, the temperature and pressure are 140 to 180°C and 10 to 50.0 mass kg / cm. 2 That's about it. A typical embossing method is as follows. First, an embossing plate is pressed against the surface of a softened resin substrate to form a concave-convex pattern on the surface of the substrate. The resin substrate is then solidified by cooling or light irradiation to fix the concave-convex pattern on the resin substrate. After that, the resin with the concave-convex pattern formed thereon is released from the embossing plate.

[0074] The colored layer (B) is formed, for example, in a recess formed by embossing the substrate (C), and it is preferable to use a colored coating liquid (B) described below containing a matting agent (B) for forming the colored layer (B) in at least a portion of the depth direction of the recess. One method for filling the recesses with the colored coating liquid (B) is to apply the colored coating liquid (B) to the main surface of the decorative material and then scrape off the colored coating liquid (B) with a scraping blade such as a doctor blade. In this case, the amount of colorant filled into the recesses can be adjusted by adjusting the material of the blade, the angle and pressure at which the blade is applied, the viscosity of the colored coating liquid (B), etc.

[0075] After filling with the colored coating liquid (B), the colored layer (B) is formed by further drying and solidifying it as necessary. It is preferable that the recesses are closed regions when the colored coating liquid (B) is filled, since the colored coating liquid (B) remains in the recesses.

[0076] When there are a plurality of recesses on the main surface side of the substrate (C), one of which is a recessed region (i) and another recess different from the recessed region (i) is a recessed region (i+1), the maximum depth within the recessed region (i) is Y i and the maximum depth in the recessed region (i+1) different from the recessed region (i) is Y i+1 When Y i ≠Y i+1 It is preferable that there exist recessed region (i) and recessed region (i+1) that satisfy the condition.

[0077] This means that it is preferable that recesses of different depths exist within the same decorative material, for example as shown in FIG. Light incident on a recess is attenuated by multiple reflections. The amount of attenuation of reflected light due to multiple reflections varies depending on the depth of the recess (the deeper the recess, the greater the attenuation rate, and the shallower the recess, the smaller the attenuation rate). Therefore, Y i ≠Y i+1 By satisfying the above condition, the color tone and glossiness differ even between adjacent recesses, and a more natural three-dimensional effect can be obtained, which is preferable.

[0078] The maximum depth Yi of the recesses is not particularly limited and may be determined appropriately depending on the desired design, with the average value being approximately 1.0 to 200.0 μm, and from the viewpoint of obtaining a design with a higher quality texture, it is preferably 5.0 to 150.0 μm, and more preferably 10.0 to 100.0 μm. In this specification, the maximum depth of the recesses is a value measured using a three-dimensional surface roughness measuring device in accordance with the method specified in JIS B0601:2013, and more specifically, the maximum height roughness (Rz) of the surface is measured at any ten points, and the average value is taken as the average maximum depth of the recesses.

[0079] Furthermore, it is preferable that at least some of the recessed areas have varying recess depths (depth a, depth b, depth c) within the same recessed area as shown in FIGS. This is preferable because the deeper recesses have a darker color and a larger amount of matting agent, which reduces the gloss, creating contrast within the same recesses and enhancing the three-dimensional effect.

[0080] [Manufacturing method] The method for producing a decorative material of the present invention includes the following steps (1) to (3): A parts by mass and the content M of the matting agent (B) in the colored layer (B) B The matting agent content ratio M A / (M A +M B ) is 0.85 or less.

[0081] (1) A step of embossing a single layer of the substrate (C) or a laminate including the substrate (C) and a transparent resin layer (E) described below with an embossing plate to form a recessed region on the main surface side of the substrate (C).

[0082] (2) After applying a color coating liquid (B) containing at least a matting agent (B) and a colorant to the main surface side of the substrate (C) obtained in (1), the color coating liquid is scraped off, and the content M of the matting agent (B) per unit area in the color layer (B) is measured. B μg / cm 2 A step of forming a colored layer (B) to be

[0083] (3) The content M of the matting agent (A) of the surface protective layer (A) is provided on the main surface side of the substrate (C) so as to cover the colored layer (B) in the recessed region on the main surface side of the substrate (C). A A process of applying a surface protective layer liquid (A) of parts by mass to form a surface protective layer (A).

[0084] The decorative material obtained through the above steps (1) to (3) can be given an excellent three-dimensional effect, and therefore has extremely excellent design properties.

[0085] The surface protective layer liquid (A) contains the matting agent (A), a polymerizable compound for forming the resin that constitutes the surface protective layer (A), and a solvent. The colored coating liquid (B) contains the matting agent (B), a polymerizable compound for forming the resin that constitutes the colored layer (B), a colorant, and a solvent.

[0086] [Other layers] Furthermore, the decorative material of the present application may optionally have one or more layers selected from a surface primer layer (D), a transparent resin layer (E), a decorative layer (F), a primer layer (G) and an adhesive layer.

[0087] <Surface primer layer (D)> The decorative material of the present invention may further have a surface primer layer (D) to improve scratch resistance. The surface primer layer (D) improves the adhesion between the surface protective layer (A) and the colored layer (B). Furthermore, when the decorative material of the present invention has a transparent resin layer (E), the adhesion between the surface protective layer (A) and the transparent resin layer (E) is improved. This makes it easier to ensure long-term interlayer adhesion when exposed to the outdoors (so-called weather-resistant adhesion) and to improve scratch resistance.

[0088] The surface primer layer (D) is mainly composed of a binder resin, and may further contain additives such as general-purpose ultraviolet absorbers, light stabilizers, antioxidants, initiators, anti-settling agents, dispersants, and colorants, as required. As the binder resin for the surface primer layer (D), the same binder resin as that constituting the colored layer (B) can be used. The thickness of the surface primer layer (D) is determined from the standpoint of adhesive strength and the balance of the thickness of the decorative material, and is preferably 0.5 μm or more, more preferably 0.7 μm or more, and even more preferably 1.0 μm or more, and is preferably 5.0 μm or less, more preferably 4.0 μm or less, and even more preferably 3.0 μm or less.

[0089] <<Matting agent (D)>> The surface primer layer (D) contains a matting agent (D). The matting agent (D) may be the same as the matting agent (B). The matting agents (B) and (D) may be the same type of matting agent or different types.

[0090] <<Other additives>> The colored layer (B) may further contain additives such as general-purpose ultraviolet absorbers, light stabilizers, antioxidants, initiators, anti-settling agents, dispersants, and colorants, which will be described later.

[0091] <Transparent resin layer (E)> The transparent resin layer (E) makes it easy to form recesses by embossing, which is preferable for creating a three-dimensional effect. When the transparent resin layer (E) is present, the main surface (H) 17 in Figures 3 and 4 is the main surface of the transparent resin layer (E) on the opposite side to the substrate (C).

[0092] The transparent resin layer (E) is mainly composed of a binder resin, and may further contain additives such as general-purpose ultraviolet absorbers, light stabilizers, antioxidants, initiators, anti-settling agents, dispersants, and colorants, as required. As the binder resin for the transparent resin layer (E), the same binder resin as that constituting the substrate (C) can be used. The thickness of the transparent resin layer (E) is preferably 20.0 μm or more, more preferably 40.0 μm or more, and even more preferably 60.0 μm or more, from the viewpoint of forming a three-dimensional effect by embossing, and is preferably 150.0 μm or less, more preferably 120.0 μm or less, and even more preferably 100.0 μm or less, from the viewpoint of workability of embossing.

[0093] <Decorative Layer (F)> From the viewpoint of improving the design, the decorative material may further have a decorative layer (F) at any location. From the viewpoint of improving the weather resistance of the decorative layer (F), it is preferably on the side closer to the substrate (C).

[0094] The decorative layer (F) may be, for example, a layer that covers the entire surface (a so-called solid colored layer), or a pattern layer formed by printing various patterns using ink and a printing machine, or a combination of these.

[0095] The pattern imparted by the decorative layer (F) is not particularly limited, and examples thereof include wood patterns, stone patterns, tile patterns, brick patterns, fabric patterns, and leather patterns. By forming these patterns with the decorative layer, the three-dimensional effect provided by the surface resin coating layer (A) and the colored layer (B) can be further emphasized.

[0096] The pattern of the wood is preferably formed by combining the bark portion with one or more patterns selected from vessels, fall wood and knots. The stone pattern is preferably formed by combining stone surface portions and recessed portions. The tile or brick pattern is preferably formed by combining the bare surface of the tile or brick with a joint pattern. The fabric pattern is preferably formed by combining the surface portion of the fabric with recesses in the fabric. The leather pattern is preferably formed by combining the surface of the leather with a wrinkled pattern.

[0097] The decorative layer (F) can be formed by applying and drying an ink for the decorative layer, which contains a colorant such as a pigment or dye and a binder resin. The ink can be mixed with additives such as extender pigments, antioxidants, plasticizers, catalysts, curing agents, UV absorbers, and light stabilizers, as needed. The colorant and binder resin of the decorative layer are not particularly limited, and for example, the same as those exemplified for the filler ink can be used.

[0098] The thickness of the decorative layer (F) may be selected appropriately depending on the desired pattern, but from the viewpoint of concealing the base color of the adherend, improving the design, and creating a three-dimensional effect, it is preferably 0.1 μm or more, more preferably 0.5 μm or more, and even more preferably 1.0 μm or more, and from the viewpoint of the manufacturability and strength of the decorative material, it is preferably 20.0 μm or less, more preferably 10.0 μm or less, and even more preferably 5.0 μm or less. <Primer layer (G)> When the decorative sheet has a decorative layer (F), it may further have a primer layer (G) in contact with the substrate (C) and between the decorative layer (F), and when it has a transparent resin layer (E), it may further have a primer layer (G) in contact with the substrate (C) and between the transparent resin layer (E). The primer layer (G) improves the adhesion between the substrate (C) and the decorative layer (F) and between the substrate (C) and the transparent resin layer (E), making it easier to ensure long-term interlayer adhesion when exposed to the outdoors (so-called weather-resistant adhesion) and to improve scratch resistance.

[0099] The primer layer (G) is mainly composed of a binder resin, and may further contain additives such as general-purpose ultraviolet absorbers, light stabilizers, antioxidants, initiators, anti-settling agents, dispersants, and colorants, as required. As the binder resin for the primer layer (G), the same binder resin as that constituting the surface primer layer (D) can be used. The thickness of the primer layer (G) is determined from the standpoint of adhesive strength and the balance of the thickness of the decorative material, and is preferably 0.5 μm or more, more preferably 0.7 μm or more, and even more preferably 1.0 μm or more, and is preferably 10.0 μm or less, more preferably 8.0 μm or less, and even more preferably 6.0 μm or less.

[0100] <Adhesive layer> The decorative material may further have an adhesive layer to improve adhesion between the layers. The adhesive layer can be made of a general-purpose adhesive such as a urethane adhesive, an acrylic adhesive, an epoxy adhesive, a rubber adhesive, etc. Among these adhesives, a urethane adhesive is preferred in terms of adhesive strength. Examples of urethane adhesives include adhesives that utilize two-component curing urethane resins containing various polyol compounds such as polyether polyol, polyester polyol, and acrylic polyol, and a curing agent such as an isocyanate compound. The thickness of the adhesive layer is determined based on the balance between the adhesion of each layer and the thickness of the decorative material, and is preferably 0.1 μm or more, more preferably 1.0 μm or more, and even more preferably 2.0 μm or more, and is preferably 30.0 μm or less, more preferably 15.0 μm or less, and even more preferably 10.0 μm or less.

[0101] In the binder resin of the present invention, a monofunctional (meth)acrylate may be used in combination for the purpose of reducing the viscosity of the ionizing radiation-curable resin composition, etc. These monofunctional (meth)acrylates may be used alone or in combination of two or more kinds.

[0102] When the ionizing radiation curable compound of the present invention is an ultraviolet curable compound, the ionizing radiation curable resin composition preferably contains additives such as a photopolymerization initiator and a photopolymerization accelerator. As the photopolymerization initiator of the present invention, a general-purpose initiator can be used, but examples thereof include one or more selected from acetophenone, benzophenone, α-hydroxyalkylphenone, Michler's ketone, benzoin, benzil dimethyl ketal, benzoyl benzoate, α-acyloxime ester, thioxanthones, etc. In addition, although a general-purpose photopolymerization accelerator can be used in the present invention, it is preferable to use one that can reduce polymerization inhibition due to air during curing and increase the curing rate, and examples thereof include one or more selected from p-dimethylaminobenzoic acid isoamyl ester, p-dimethylaminobenzoic acid ethyl ester, etc.

[0103] As the antioxidant of the present invention, any general-purpose antioxidant can be used, but amine-based antioxidants or phenol-based antioxidants are preferred. As the anti-settling agent of the present invention, any general-purpose agent can be used, but preferred are polyethylene oxide, hydrogenated castor oil, higher fatty acid amides, etc., and more preferred are oleic acid amide, stearic acid amide, caproic acid amide, linoleic acid amide, N,N'-methylenebisstearic acid amide, and N,N'-ethylenebisstearic acid amide.

[0104] Although general-purpose dispersants can be used as the dispersant of the present invention, polyacrylic acid, polymethacrylic acid, and copolymers having structural units derived from methacrylic acid and styrenesulfonic acid are preferred. From the viewpoint of improving the weather resistance of the decorative material of the present invention, it is preferable to use weather resistance agents such as ultraviolet absorbers and light stabilizers among the above additives.

[0105] The ultraviolet absorber can be any ultraviolet absorber commonly used in cosmetic materials, without any particular limitation, including, for example, benzotriazole-based ultraviolet absorbers, benzophenone-based ultraviolet absorbers, triazine-based ultraviolet absorbers, and hydroxyphenyltriazine-based ultraviolet absorbers. The light stabilizer can also be any ultraviolet absorber commonly used in cosmetic materials, without any particular limitation, including, for example, hindered amine-based light stabilizers such as piperidinyl sebacate-based light stabilizers. These ultraviolet absorbers and light stabilizers may also have a reactive functional group with an ethylenic double bond in the molecule, such as a (meth)acryloyl group, a vinyl group, or an allyl group. These ultraviolet absorbers, weathering agents such as light stabilizers, and other various additives may be used alone or in combination of two or more kinds.

[0106] <Uses of decorative materials> The decorative material of the present invention can be used for various purposes as it is, or as a laminate attached to an adherend, or after the decorative material or laminate is subjected to a predetermined molding process or the like. Various applications include interior materials for buildings such as walls, ceilings, and floors; building materials such as window frames, doors, and handrails; furniture; housings for home appliances and office equipment; and exterior materials for entrance doors, fences, and exterior building walls.

[0107] Examples of substrates include wood boards such as wood veneer, wood plywood, particle board, MDF (medium density fiberboard), and laminated lumber; gypsum boards such as gypsum boards and gypsum slag boards; cement boards such as calcium silicate boards, asbestos slate boards, lightweight foam concrete boards, and hollow extruded cement boards; fiber cement boards such as pulp cement boards, asbestos cement boards, and wood chip cement boards; ceramic boards such as pottery, porcelain, earthenware, glass, and enamel; metal boards such as iron boards, galvanized steel boards, polyvinyl chloride sol-coated steel boards, aluminum boards, and copper boards; polyolefin resin boards, acrylic resin boards, ABS boards, Examples of such resins include thermoplastic resin plates such as polycarbonate plates; thermosetting resin plates such as phenolic resin plates, urea resin plates, unsaturated polyester resin plates, polyurethane resin plates, epoxy resin plates, and melamine resin plates; and so-called FRP plates, which are composites formed by impregnating and curing resins such as phenolic resins, urea resins, unsaturated polyester resins, polyurethane resins, epoxy resins, melamine resins, and diallyl phthalate resins into glass fiber nonwoven fabrics, cloth, paper, and other various fibrous substrates. These may be used alone, or two or more of these may be laminated together to form a composite substrate. [Example]

[0108] Next, the present invention will be described in more detail by way of examples, but the present invention is not limited to these examples in any way.

[0109] 1. Evaluation 1-1. Three-dimensional effect The cosmetic materials obtained in the Examples and Comparative Examples were observed by 20 random adults from various directions under fluorescent lighting, and visually evaluated to see whether or not they perceived a three-dimensional effect. AAA: 19 or more people answered that the three-dimensional effect was good. AA: 18 or more people answered that the three-dimensional effect was good. A: 15 to 17 people answered that the three-dimensional effect was good. B: 11 to 14 people answered that the three-dimensional effect was good. C: Fewer than 10 people answered that the three-dimensional effect was good.

[0110] 1-2.Natural texture The cosmetic materials obtained in the Examples and Comparative Examples were observed by 20 random adults from various directions under fluorescent lighting, and the natural feel (natural texture) was visually evaluated. AAA: 19 or more people answered that it has a natural texture. AA: More than 18 people answered that it has a natural texture. A: 15 to 17 people answered that it has a natural texture. B: 11 to 14 people answered that it has a natural texture. C: Fewer than 10 people answered that it has a natural texture.

[0111] Example 1 A 1.0 μm thick solid print layer made of gray ink was formed by gravure printing on the substrate (C) (a 60.0 μm thick white polypropylene film). A wood grain pattern was then printed on the solid print layer to form the decorative layer (F). Next, an adhesive layer (polyester resin, thickness: 2.0 μm) was formed on the decorative layer (F), and then a transparent resin layer (E) (transparent polypropylene resin sheet, thickness: 80.0 μm) was laminated on the adhesive layer by extrusion lamination.

[0112] Next, the transparent resin layer (E) was heated to a softened state, and an embossing process was performed on the transparent resin layer (E) side of the substrate (C) using an embossing plate (hard chrome plating treatment, laser irradiation, the ratio of the total area of ​​the recessed area in a plan view to the area of ​​the main surface of the substrate (C) being 50%), thereby forming recesses. The recesses are modeled after vessels in the wood grain, and the decorative material has a wood pattern. The recessed part by image analysis is Y i : 60.0 to 80.0 μm, and the depth of the recess: 60.0 to 80.0 μm.

[0113] Furthermore, a colored coating liquid (B) containing an acrylic resin, a matting agent (B) (silica particles), a colorant (black-brown), and a solvent (ethyl acetate) was applied to the transparent resin layer (E) with the recesses formed therein, and then a doctor blade was pressed perpendicularly against the substrate (C) to scrape off the filling ink. The recesses were filled with the colored coating liquid (B), which was then dried and cured to form a colored layer (B).

[0114] Furthermore, a surface protection layer liquid (A) containing a matting agent (A) and a solvent (ethyl acetate) was applied to the recessed side of the substrate (C), dried and cured, and a surface protection layer (A) with a film thickness of 4.0 μm after drying and curing was formed, thereby obtaining the decorative material of Example 1. The silica particles used, the layer thickness, the content, and the evaluation results are shown in Table 1.

[0115] Example 2 In Example 1, the process was carried out in the same manner as in Example 1 up to the formation of the colored layer (B), to obtain a substrate (C) having a transparent resin layer (E) and a colored layer (B). Furthermore, a coating liquid containing silica particles (matting agent (D)) was applied to the main surface side of the substrate (C) having the colored layer (B), followed by drying and curing to form a surface primer layer (D). Furthermore, in the same manner as in Example 1, a surface protective layer (A) was formed on the surface primer layer (D). The silica particles used, the layer thickness, the content, and the evaluation results are shown in Table 1.

[0116] (Example 3 and Comparative Examples 1 to 4) In the same manner as in Examples 1 and 2, decorative materials of Example 3 and Comparative Examples 1 to 4 were prepared. The layer structure, silica particles used, layer thickness, content, and evaluation results are shown in Table 1.

[0117] [Table 1]

[0118] As shown in Table 1, the decorative material of the present invention exhibited an excellent three-dimensional effect, reproduced the texture of natural wood, and was excellent in expressing natural objects. [Explanation of symbols]

[0119] 1: Decorative materials 10: Surface protective layer (A) 11: Colored layer (B) 12: Base material (C) 13: Surface primer layer (D) 14: Transparent resin layer (E) 15: Decorative layer (F) 16: Primer layer (G) 17: Main surface (H) 20: Recess 21: Convex 22a: Bottom surface a of the recessed portion of the substrate 22b: Bottom surface b of recessed portion of substrate 22c: Bottom surface of recessed portion of substrate c 30a: Depth a 30b: Depth b 30c: Depth c

Claims

1. A surface protective layer (A), a colored layer (B), and a substrate (C), The substrate (C) has recesses of different depths on at least one main surface side, The colored layer (B) is provided in the recess, The surface protective layer (A) is provided so as to cover at least the colored layer (B), a resin composition forming a layer present on the convex portion contains a matting agent, the total content (parts by mass) of the matting agent relative to 100 parts by mass of the resin contained in the resin composition forming the layer present in the convex portion, S (convex); A decorative material in which the total content (parts by mass) of the matting agent relative to 100 parts by mass of resin contained in a resin composition that forms a layer present in the recess (S(concave)) satisfies a matting agent content ratio S(convex) / S(concave) of 0.85 or less.

2. A decorative material as described in claim 1, wherein the arithmetic mean roughness (Ra) of the bottom surface of the recess is 0.10 μm or more.

3. A decorative material as described in claim 1 or 2, wherein the ratio of the total area of ​​the recessed region in a plan view to the area of ​​the main surface side of the substrate (C) is 10% or more.

4. A decorative material according to any one of claims 1 to 3, wherein when there are a plurality of recesses on the main surface side of the substrate (C), one of which has a maximum depth Y i within the region of recess region (i) and a recess region (i+1) different from the recess region (i) has a maximum depth Y i+1 within the region, there are recess region (i) and recess region (i+1) that satisfy the condition Y i ≠ Y i+1.

5. A cosmetic material described in any one of claims 1 to 4, wherein at least some of the recessed regions have varying recess depths within the same recessed region.

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