Decorative sheet, method for producing decorative sheet, and decorative member

Abstract

To provide a decorative sheet that allows impartation of a good depth appearance when a coating material such as a stain paint is applied onto the decorative sheet.SOLUTION: A decorative sheet 10 comprising, in this order in the thickness direction, a base material layer 1, a design layer 2, an adhesive layer 3, and a nonwoven fabric layer 4, wherein a patterned convex layer 5 is disposed between the design layer and the adhesive layer.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a decorative sheet, a method for manufacturing a decorative sheet, and a decorative member. [Background technology]

[0002] It is common practice, mainly in Europe and the United States, for ordinary consumers to apply stain paint to the surfaces of wooden building interior materials, etc. Such stain paint penetrates into the wood to color it, and can improve the design of the wood.

[0003] Meanwhile, decorative sheets with wood grain patterns are sometimes placed on the surface of building interior materials, and decorative sheets that can be painted with paints such as stain paints are known. For example, Patent Document 1 discloses a stainable decorative sheet that includes a paper substrate, an adhesive layer, and a nonwoven fabric layer. The nonwoven fabric layer has a paint-receiving property that allows paints such as stain paints to penetrate into it. A decorative sheet that includes a nonwoven fabric layer that has a paint-receiving property that allows paints to penetrate into it is also called a recoatable decorative sheet. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-64131 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, the nonwoven fabric layer has the ink-receiving property to allow paint to penetrate, but the penetration depth is usually uniform in different regions in the surface direction of the nonwoven fabric layer (the direction perpendicular to the thickness direction). That is, the penetration depth of paint in one region of the nonwoven fabric layer is usually about the same as the penetration depth of paint in another region of the nonwoven fabric layer. Therefore, it is difficult to impart a sense of depth to the design of the decorative sheet by paint penetration.

[0006] The present disclosure has been made in consideration of the above-mentioned circumstances, and has as its main object to provide a decorative sheet that can impart a good sense of depth when a paint such as a stain paint is applied to the decorative sheet. [Means for solving the problem]

[0007] The present disclosure provides a decorative sheet having a base layer, a design layer, an adhesive layer, and a nonwoven fabric layer, in that order in the thickness direction, in which a patterned convex layer is disposed between the design layer and the adhesive layer.

[0008] The present disclosure provides a method for manufacturing a decorative sheet, comprising: a first laminate preparation step of preparing a first laminate having a base layer, a design layer, and a patterned convex layer in that order in the thickness direction; a second laminate preparation step of forming an adhesive layer on the surface of the first laminate facing the convex layer, thereby preparing a second laminate; and a nonwoven fabric layer installation step of arranging a nonwoven fabric layer on the surface of the second laminate facing the adhesive layer, and adhering the second laminate and the nonwoven fabric layer together.

[0009] The present disclosure provides a decorative member having an attachment member and the decorative sheet described above. [Effects of the Invention]

[0010] The present disclosure has the effect of providing a decorative sheet that can impart a good sense of depth when a paint such as a stain paint is applied to the decorative sheet. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a schematic cross-sectional view illustrating a decorative sheet according to the present disclosure. [Figure 2] 1 is a schematic cross-sectional view illustrating a design layer and a convex layer according to the present disclosure. FIG. [Figure 3] 1 is a schematic cross-sectional view illustrating a design layer and a convex layer according to the present disclosure. FIG. [Figure 4]1 is a schematic cross-sectional view illustrating a decorative sheet according to the present disclosure. [Figure 5] 1 is a schematic cross-sectional view illustrating a method for producing a decorative sheet according to the present disclosure. [Figure 6] 1 is a schematic cross-sectional view illustrating a decorative member according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0012] Below, embodiments will be described with reference to the drawings etc. However, the present disclosure can be implemented in many different forms and is not limited to the description of the embodiments exemplified below. Furthermore, to clarify the explanation, the drawings may show the width, thickness, and shape of each part schematically compared to the actual form, but this is merely an example and should not be construed as limiting.

[0013] In this specification, when describing a mode in which another component is placed on a certain component, the terms "above" or "below" include both a case in which another component is placed directly above or below the certain component so as to be in contact with the component, and a case in which another component is placed above or below the certain component with another component interposed therebetween, unless otherwise specified. Also, in this specification, when describing a mode in which another component is placed on the surface of a certain component, the terms "on the surface" or "on the surface side" include both a case in which another component is placed directly above or below the certain component so as to be in contact with the component, and a case in which another component is placed above or below the certain component with another component interposed therebetween, unless otherwise specified.

[0014] In addition, in this specification, the terms "plate," "sheet," and "film" are not distinguished from one another solely based on differences in name. For example, a "sheet" also includes a member called a "plate" or a "film."

[0015] The decorative sheet, the method for manufacturing the decorative sheet, and the decorative member according to the present disclosure will be described in detail below.

[0016] A. Decorative sheet Fig. 1(a) is a schematic cross-sectional view illustrating a decorative sheet according to the present disclosure. The decorative sheet 10 shown in Fig. 1(a) is made up of a base material layer 1, a design layer 2, an adhesive layer 3, and a nonwoven fabric layer 4, arranged in a thickness direction D T In this order, the decorative sheet 10 has a patterned convex layer 5 disposed between the design layer 2 and the adhesive layer 3. As shown in FIG. 1(b), the decorative sheet 10 may also have a surface protection layer 6 on the side of the adhesive layer 3 opposite the convex layer 5.

[0017] According to the present disclosure, by disposing a patterned convex layer between the design layer and the adhesive layer, a decorative sheet can be obtained that can impart a good sense of depth when a paint such as a stain paint is applied to the decorative sheet. As described above, the nonwoven fabric layer has the ink-receiving property that allows the paint to penetrate, but the penetration depth is usually uniform in different regions in the surface direction of the nonwoven fabric layer (the direction perpendicular to the thickness direction). In other words, the penetration depth of the paint in one region of the nonwoven fabric layer is usually about the same as the penetration depth of the paint in another region of the nonwoven fabric layer. Therefore, it is difficult to impart a sense of depth to the design of the decorative sheet by the penetration of the paint.

[0018] In contrast, in the present disclosure, a patterned convex layer is disposed between the design layer and the adhesive layer. This allows for a difference in the penetration depth of the paint in the surface direction of the nonwoven fabric layer. Specifically, as shown in Figures 1(a) and 1(b), T From the perspective of the decorative sheet, the penetration depth of the paint (not shown) into the nonwoven fabric layer 4 in the first region R1 that overlaps with the convex layer 5 can be controlled to be deeper than the penetration depth of the paint (not shown) into the nonwoven fabric layer 4 in the second region R2 that does not overlap with the convex layer 5. By providing a difference in the penetration depth of the paint in this way, a sense of depth can be imparted to the design of the decorative sheet. As a result, when paint such as a stain paint is applied to the decorative sheet, a high level of design can be achieved.

[0019] The reason for the difference in paint penetration depth is not entirely clear, but it is presumed to be because the adhesive layer is relatively thin in the first region overlapping with the convex layer, and relatively thick in the second region not overlapping with the convex layer. A portion of the resin forming the adhesive layer penetrates into the nonwoven fabric layer during the production of the decorative sheet, but the amount of resin that penetrates into the nonwoven fabric layer is small in the first region, where the adhesive layer is relatively thin. Therefore, it is presumed that the nonwoven fabric layer in the first region maintains a high capacity to absorb paint. In contrast, the amount of resin that penetrates into the nonwoven fabric layer is large in the second region, where the adhesive layer is relatively thick. Therefore, it is presumed that the nonwoven fabric layer in the second region can absorb less paint. As a result, it is presumed that the difference in paint penetration depth occurs between the first and second regions.

[0020] 1. Patterned convex layer The patterned convex layer is disposed on the side of the design layer opposite the base layer.

[0021] The convex layer contains, for example, at least a binder resin. The binder resin may be a thermoplastic resin or a cured product of a curable resin. Examples of binder resins include polyurethane resins, (meth)acrylic polyol resins, (meth)acrylic resins, ester resins, alkyd resins, amide resins, butyral resins, styrene resins, urethane-(meth)acrylic copolymers, vinyl chloride-vinyl acetate copolymer resins, vinyl chloride-vinyl acetate-(meth)acrylic copolymer resins, nitrocellulose resins (nitrocellulose), and cellulose acetate resins. In the present disclosure, (meth)acrylic refers to acrylic or methacrylic.

[0022] The polyurethane resin may be a thermoplastic polyurethane resin or a cured product of a curable polyurethane resin. The curable polyurethane resin may be a two-component curing type or a one-component curing type. The polyurethane resin may be the same as that described for the adhesive layer below, for example.

[0023] The convex layer preferably contains particles, because the thickness of the convex layer can be easily adjusted. The shape of the particles is not particularly limited, but examples thereof include spherical and scaly shapes. Specific examples of particles include glitter pigments and fillers.

[0024] Examples of luster pigments include mica coated with a thin film of titanium oxide or iron oxide, shells such as pearl oysters, pearl pigments (pearl luster pigments) such as bismuth oxychloride and basic lead carbonate, and metal powder pigments of metals such as aluminum, brass, gold, silver, copper, tin, and nickel. Luster pigments are typically scaly in shape.

[0025] Examples of fillers include organic particles (organic beads) and inorganic particles (inorganic beads). Examples of materials for organic particles include resins such as (meth)acrylic resins, urethane resins, silicone resins, and amide resins. On the other hand, examples of materials for inorganic particles include inorganic materials such as silica, alumina, zirconia, titania (titanium dioxide), kaolinite, calcium carbonate, and barium sulfate.

[0026] The average particle size of the particles contained in the convex layer is not particularly limited, but is, for example, 2 μm or more and 60 μm or less. When the particles are luster pigments, the average particle size of the luster pigments may be, for example, 5 μm or more and 60 μm or less, or 10 μm or more and 40 μm or less. When the particles are organic particles, the average particle size of the organic particles may be, for example, 20 μm or more and 60 μm or less, or 30 μm or more and 50 μm or less. When the particles are inorganic particles, the average particle size of the inorganic particles may be, for example, 2 μm or more and 12 μm or less, or 4 μm or more and 10 μm or less. The average particle size of the particles contained in the convex layer is determined by measuring the particle sizes of multiple particles from cross-sectional images taken using a scanning electron microscope (SEM) and averaging the measured values. A large number of samples is preferably used, for example, 100 or more.

[0027] The particle content in the convex layer is, for example, 5 parts by mass or more, 10 parts by mass or more, or 15 parts by mass or more, relative to 100 parts by mass of the binder resin in the convex layer. On the other hand, the particle content in the convex layer is, for example, 150 parts by mass or less, 100 parts by mass or less, 50 parts by mass or less, 30 parts by mass or less, or 25 parts by mass or less.

[0028] The convex layer may or may not contain a colorant. Examples of the colorant include inorganic pigments such as carbon black, titanium white, zinc white, red iron oxide, iron blue, and cadmium red; and organic pigments such as azo pigments, lake pigments, anthraquinone pigments, quinacridone pigments, phthalocyanine pigments, isoindolinone pigments, and dioxazine pigments. The convex layer may use a dye as the colorant.

[0029] As shown in Figure 2, T In the first region R1 overlapping with the convex layer 5, the thickness of the convex layer 5 is defined as T5, and the thickness of the design layer 2 is defined as T2. Thickness T5 may be greater than, equal to, or smaller than thickness T2. "Thickness T5 is the same as thickness T2" means that the difference between the two is 1 μm or less. Thickness T5 is not particularly limited, but may be, for example, 2 μm or more and 15 μm or less, or 4 μm or more and 12 μm or less. Meanwhile, thickness T2 is not particularly limited, but may be, for example, 0.5 μm or more and 10 μm or less, or 2 μm or more and 8 μm or less. Thicknesses T5 and T2 are calculated as the average values ​​of thicknesses measured at multiple locations on a cross-sectional image taken using a scanning electron microscope (SEM). A large number of samples, for example, 100 or more, is preferable.

[0030] The patterned convex layer is preferably arranged in accordance with the pattern in the picture layer (design layer) when viewed in the thickness direction. In other words, the patterned convex layer is preferably in harmony with the pattern in the picture layer (design layer). "Synchronization" refers to the general matching of the shapes and positions of the two target patterns. Specifically, this refers to the matching of the shapes and positions of the patterned convex layer and at least a portion of the pattern constituting the picture layer (design layer) to an extent that does not impair realism or a sense of luxury. For example, if the design layer has a wood grain pattern, the patterned convex layer is preferably arranged so as to match the duct or non-duct portions of the wood grain pattern. The planar shape of the convex layer is not particularly limited, but examples include lines and dots.

[0031] 2. Design layer The decorative layer is disposed between the base layer and the adhesive layer. The decorative layer preferably has a pattern.

[0032] Examples of patterns on the design layer include organic patterns, inorganic patterns, and abstract patterns. Organic patterns are patterns derived from the life activities of living organisms such as animals and plants. Inorganic patterns are patterns that do not fall under the category of organic patterns. Abstract patterns are patterns that interpret objects (such as images found in nature) abstractly and do not represent a clear shape. Examples of organic patterns include wood grain patterns, leather patterns, floral patterns, and botanical patterns. Examples of inorganic patterns include stone patterns, concrete patterns, sand patterns, fabric patterns, metal patterns, tile patterns, and brickwork patterns. Examples of abstract patterns include flickering patterns (such as ink flickering patterns), smoke patterns, and marble patterns.

[0033] The design layer preferably has a picture layer. The design layer may also have a solid layer on the base layer side of the picture layer. The picture layer usually means a layer formed partially (particularly in a pattern) on one side of the base layer. The solid layer means a layer formed entirely on one side of the base layer.

[0034] The design layer contains, for example, a binder resin and a colorant. The binder resin and colorant are the same as those described for the convex layer above. The design layer may or may not contain the above-mentioned particles (e.g., glitter pigment, filler). Also, for example, if the convex layer contains a glitter pigment, the design layer may or may not contain the glitter pigment. On the other hand, for example, if the convex layer contains a filler, the design layer may or may not contain the filler.

[0035] FIG. 3 is a schematic cross-sectional view illustrating the design layer and the convex layer of the present disclosure. As shown in FIG. 3(a), in the first region R1, the convex layer 5 contains particles P, and the design layer 2 may not contain particles P. The design layer 2 shown in FIG. 3(a) does not contain particles P in either the first region R1 or the second region R2 (e.g., the second region R2 within 1 mm from the boundary with the first region R1). Also, as shown in FIG. 3(b), in the first region R1, the convex layer 5 may contain particles P, and the design layer 2 may also contain particles P. The design layer 2 shown in FIG. 3(b) contains particles P in both the first region R1 and the second region R2 (e.g., the second region R2 within 1 mm from the boundary with the first region R1). Also, as shown in FIGS. 3(c) and 3(d), the design layer 2 may have a layer containing particles P in a pattern. As shown in Figure 3(c), in the first region R1, the convex layer 5 may contain particles P, and the design layer 2 may also contain particles P. On the other hand, as shown in Figure 3(d), in the first region R1, the convex layer 5 may contain particles P, and the design layer 2 may not contain particles P.

[0036] As shown in Figures 3(b) to (d), when the design layer 2 and the convex layer 5 each contain particles P, the particles P contained in the design layer 2 and the particles P contained in the convex layer 5 may be made of the same material or different materials. For example, the particles P contained in the design layer 2 may be a filler, and the particles P contained in the convex layer 5 may be a luster pigment. The reverse combination is also possible. The particles P contained in the design layer 2 and the particles P contained in the convex layer 5 may have the same or different average particle diameters. "Having the same average particle diameter" means that the absolute value of the difference between the average particle diameters of the two is 1 µm or less. When the average particle diameters are different, the average particle diameter of the particles P contained in the design layer 2 may be larger or smaller than the average particle diameter of the particles P contained in the convex layer 5.

[0037] The thickness of the design layer is not particularly limited, but may be, for example, 0.1 μm or more, 0.5 μm or more, or 1 μm or more. On the other hand, the thickness of the design layer may be, for example, 10 μm or less, 9 μm or less, or 7.5 μm or less. When the design layer has two or more layers, it is preferable that the total thickness of each layer is within the above range. Furthermore, the thickness of the design layer is determined by measuring the thickness at multiple locations on a cross-sectional image taken using a scanning electron microscope (SEM) and averaging the measurements. It is preferable to have a large number of samples, for example, 100 or more.

[0038] 3.Adhesive layer The adhesive layer is disposed between the design layer and the convex layer and the nonwoven fabric layer. The adhesive layer contains an adhesive. Preferably, a portion of the adhesive penetrates into the voids in the nonwoven fabric that constitutes the nonwoven fabric layer.

[0039] The resin constituting the adhesive may be a thermoplastic resin or a cured product of a curable resin. Examples of resins constituting the adhesive include polyurethane resin, polyolefin resin, (meth)acrylic resin, and epoxy resin. Among them, polyurethane resin is preferred because it can provide excellent adhesiveness while preventing the solvent (e.g., alcohol) of the paint applied to the nonwoven fabric layer from penetrating into the base material layer.

[0040] The polyurethane resin may be a thermoplastic polyurethane resin or a cured product of a curable polyurethane resin. The curable polyurethane resin may be a two-component curing type or a one-component curing type.

[0041] Two-component curing polyurethane resins are polyurethane resins that use polyol as the main component and isocyanate as the crosslinking agent (curing agent). Polyols are compounds that have two or more hydroxyl groups in their molecules, and examples of such polyols include polyethylene glycol, polypropylene glycol, (meth)acrylic polyol, polyester polyol, polyether polyol, polycarbonate polyol, polycaprolactone polyol, and polyurethane polyol.

[0042] On the other hand, isocyanates are compounds having two or more isocyanate groups in the molecule, and examples thereof include aromatic isocyanates such as 2,4-tolylene diisocyanate, xylene diisocyanate, naphthalene diisocyanate, and 4,4'-diphenylmethane diisocyanate; and aliphatic (or alicyclic) isocyanates such as 1,6-hexamethylene diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, isophorone diisocyanate, hydrogenated tolylene diisocyanate, and hydrogenated diphenylmethane diisocyanate.

[0043] On the other hand, thermoplastic urethane resins are urethane resins that do not have a crosslinked structure and have a linear or branched skeletal structure. Examples of thermoplastic urethane resins include resins obtained by reacting a polyol having a hydroxyl group at its terminal with an isocyanate.

[0044] The polyolefin resin preferably contains one or more monoolefins such as ethylene, propylene, butene, pentene, hexene, heptene, octene, and 4-methyl-1-pentene as monomer units. The polyolefin resin may also contain monomer units other than monoolefins. Examples of monomer units other than monoolefins include alicyclic olefins such as cyclopentene and cyclohexene; linear or cyclic polyenes such as 1,4-hexadiene, 1,5-hexadiene, divinylbenzene, 1,3-cyclopentadiene, 1,3-cyclohexadiene, and 5-vinyl-2-norbornene; and styrene.

[0045] The adhesive layer may contain additives such as ultraviolet absorbers, weathering agents such as light stabilizers, extender pigments, stabilizers, and plasticizers, as required.

[0046] The thickness of the adhesive layer is not particularly limited, but may be, for example, 5 μm or more, 6 μm or more, or 7 μm or more. If the adhesive layer is too thin, the adhesive between the adhesive layer and the nonwoven fabric layer may be reduced. On the other hand, the thickness of the adhesive layer may be, for example, 20 μm or less, 19 μm or less, 18 μm or less, or 17 μm or less. If the adhesive layer is too thick, the amount of resin constituting the adhesive layer that penetrates into the nonwoven fabric layer may increase, and the amount of paint that the nonwoven fabric layer can accept may decrease. The thickness of the adhesive layer in the decorative sheet is defined to include the portion where the resin constituting the adhesive layer has penetrated into the nonwoven fabric layer. In addition, the thickness of the adhesive layer in the second region is determined by measuring the thickness at multiple locations on a cross-sectional image taken using a scanning electron microscope (SEM) and averaging the measurements. A large number of samples, for example, 100 or more, is preferable.

[0047] The thickness of the adhesive layer in the first region is T 31 The thickness of the adhesive layer in the second region is T 32 Let the thickness be T 31 is the thickness T 32 It is preferable that the thickness T 32 and thickness T 31The difference may be, for example, 2 μm or more and 15 μm or less, or 4 μm or more and 12 μm or less.

[0048] 4.Non-woven layer The nonwoven fabric layer is disposed on the adhesive layer on the side opposite the decorative layer, and has ink-receiving properties that allow paint such as stain paint to penetrate.

[0049] The nonwoven fabric layer includes at least a nonwoven fabric. The fibers constituting the nonwoven fabric are not particularly limited, but examples thereof include thermoplastic resin fibers, natural fibers, regenerated fibers, and semi-synthetic fibers.

[0050] Examples of the thermoplastic resin include (meth)acrylic resins such as poly(meth)acrylate; polyvinyl acetal resins (butyral resins) such as polyvinyl butyral; polyester resins such as polyethylene terephthalate and polybutylene terephthalate; polyolefin resins such as polyethylene and polypropylene; styrene resins such as polystyrene and α-methylstyrene; acetal resins such as polyoxymethylene; fluororesins such as ethylene-tetrafluoroethylene copolymers; and thermoplastic elastomers such as polyolefin thermoplastic elastomers, polystyrene thermoplastic elastomers, polydiene thermoplastic elastomers, urethane thermoplastic elastomers, polyester thermoplastic elastomers, and fluororesin thermoplastic elastomers. Other examples of thermoplastic resin fibers include polyvinyl chloride resins, polyurethane resins, polyamide resins, polyimide resins, polylactic acid resins, and polycarbonate resins. Among these, polyester resins, polyolefin resins, and urethane resins are preferred as the thermoplastic resin because of their excellent dimensional stability.

[0051] The thermoplastic resin may be a single type or a combination of two or more types. The thermoplastic resin may also be a composite fiber having a core-sheath structure. An example of the core-sheath structure is a structure in which the core is a polyester resin and the sheath is a polyolefin resin.

[0052] Examples of natural fibers include fibers made from natural materials such as cotton, wool, and silk. Examples of regenerated fibers include rayon, cupra (cuprammonium rayon), and lyocell. Examples of semi-synthetic fibers include triacetate and promix.

[0053] The average fiber diameter of the fibers constituting the nonwoven fabric is not particularly limited, but may be, for example, 0.5 μm or more, or 1 μm or more. On the other hand, the average fiber diameter is, for example, 50 μm or less, or may be 30 μm or less, or may be 20 μm or less. The average fiber diameter is determined by measuring the fiber widths (diameters) of 30 fibers present at any location in the nonwoven fabric using an electron microscope (300x magnification) and averaging the values ​​obtained for each measurement result.

[0054] The basis weight of the fibers constituting the nonwoven fabric is, for example, 10 g / m 2 or more, 15 g / m 2 On the other hand, the basis weight may be, for example, 40 g / m 2 less than 30 g / m 2 It may be less than 25 g / m 2 It may be the following:

[0055] The thickness of the nonwoven fabric layer is not particularly limited, but may be, for example, 15 μm or more, or 20 μm or more. If the nonwoven fabric layer is too thin, the nonwoven fabric layer may not be able to sufficiently absorb the paint. On the other hand, the thickness of the nonwoven fabric may be, for example, 200 μm or less, or 150 μm or less. If the nonwoven fabric layer is too thick, it may be difficult to achieve a difference in the penetration depth of the paint in the surface direction of the nonwoven fabric layer (the direction perpendicular to the thickness direction). The thickness of the nonwoven fabric layer can be adjusted by the conditions for bonding the adhesive layer and the nonwoven fabric layer. Furthermore, before and after bonding the adhesive layer and the nonwoven fabric layer, the thickness of the nonwoven fabric layer usually decreases, and the density of the nonwoven fabric layer increases.

[0056] 5.Surface protection layer The decorative sheet of the present disclosure preferably has a surface protective layer on the side of the nonwoven fabric layer opposite the adhesive layer. This is because it can impart scratch resistance to the decorative sheet while maintaining the shape of the nonwoven fabric layer. Furthermore, providing a surface protective layer can impart a certain degree of smoothness to the surface of the decorative sheet. Furthermore, the surface protective layer contains a resin. Part of the resin may penetrate into the voids in the nonwoven fabric that constitutes the nonwoven fabric layer.

[0057] The surface protective layer contains, for example, a cured product of a curable resin. Examples of curable resins include thermosetting resins and ionizing radiation curable resins. Thermosetting resins are resins that are cured by heat. Examples of thermosetting resins include (meth)acrylic resins, urethane resins, phenolic resins, urea melamine resins, epoxy resins, unsaturated polyester resins, and silicone resins. When the surface protective layer is formed using a resin composition containing a thermosetting resin, the resin composition may contain at least one of a curing agent and a curing catalyst, as necessary.

[0058] An ionizing radiation-curable resin is a composition containing a compound having an ionizing radiation-curable functional group and is cured by ionizing radiation. 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 as ionizing radiation, but other types of radiation, such as electromagnetic waves (e.g., X-rays and γ-rays), α-rays, and charged particle beams (e.g., ion beams), may also be used. The ionizing radiation-curable resin may be either an ultraviolet-curable resin or an electron beam-curable resin. Electron beam-curable resins have the advantages of being odorless because they do not require a polymerization initiator, and of easily achieving good scratch resistance by increasing the crosslink density.

[0059] The ionizing radiation-curable functional group is a group that crosslinks and cures upon irradiation with ionizing radiation, and examples thereof include functional groups having an ethylenic double bond, such as a (meth)acryloyl group, a vinyl group, and an allyl group. Other examples of the ionizing radiation-curable functional group include an epoxy group and an oxetanyl group. The (meth)acryloyl group refers to an acryloyl group or a methcroyl group. Furthermore, the (meth)acrylate refers to an acrylate or a methacrylate.

[0060] The ionizing radiation curable compound is preferably a compound having two or more ethylenically unsaturated bond groups. In particular, the ionizing radiation curable compound is preferably a polyfunctional (meth)acrylate compound having two or more ethylenically unsaturated bond groups. The polyfunctional (meth)acrylate compound may be a monomer or an oligomer.

[0061] Examples of bifunctional (meth)acrylate monomers include ethylene glycol di(meth)acrylate, bisphenol A tetraethoxydiacrylate, bisphenol A tetrapropoxydiacrylate, and 1,6-hexanediol diacrylate. On the other hand, examples of trifunctional or higher functional (meth)acrylate monomers include trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol tetra(meth)acrylate, and isocyanuric acid-modified tri(meth)acrylate.

[0062] Examples of polyfunctional (meth)acrylate oligomers include urethane (meth)acrylate, epoxy (meth)acrylate, polyester (meth)acrylate, and polyether (meth)acrylate. Urethane (meth)acrylate can be obtained, for example, by reacting a polyhydric alcohol and an organic diisocyanate with a hydroxy (meth)acrylate.

[0063] When the ionizing radiation curable resin is an ultraviolet curable resin, the ionizing radiation curable resin preferably contains additives such as a photopolymerization initiator and a photopolymerization accelerator. Examples of photopolymerization initiators include acetophenone, benzophenone, α-hydroxyalkylphenone, Michler's ketone, benzoin, benzyl dimethyl ketal, benzoyl benzoate, α-acyloxime ester, and thioxanthones. Examples of photopolymerization accelerators include p-dimethylaminobenzoic acid isoamyl ester and p-dimethylaminobenzoic acid ethyl ester.

[0064] The surface protective layer may contain a filler. Adding a filler can impart a matte design to the surface protective layer and improve the abrasion resistance of the surface protective layer. The filler is as described above. The content of the filler is, for example, 5 parts by mass or more and 70 parts by mass or less, or may be 10 parts by mass or more and 60 parts by mass or less, relative to 100 parts by mass of the resin constituting the surface protective layer.

[0065] The thickness of the surface protective layer is not particularly limited, but may be, for example, 2 μm or more, or 4 μm or more. If the surface protective layer is too thin, the scratch resistance effect of the surface protective layer may not be fully obtained. On the other hand, the thickness of the surface protective layer may be, for example, 20 μm or less, or 15 μm or less. If the surface protective layer is too thick, the amount of resin constituting the surface protective layer that penetrates into the nonwoven fabric layer may increase, and the amount of paint that the nonwoven fabric layer can absorb may decrease. The thickness of the surface protective layer of a decorative sheet is defined to include the portion where the resin constituting the surface protective layer has penetrated into the nonwoven fabric layer. In addition, the thickness of the surface protective layer is determined by measuring the thickness at multiple locations on a cross-sectional image taken using a scanning electron microscope (SEM) and averaging the measured values. A large number of samples is preferably used, for example, 100 or more.

[0066] 6.Base material layer The substrate layer functions as a support for providing other layers. Examples of the substrate layer include a paper substrate and a resin substrate. Among these, a paper substrate has the advantages of being inexpensive and having a low environmental impact.

[0067] Examples of paper substrates include fine paper, tissue paper, linter paper, kraft paper, reinforced inter-paper paper, resin-impregnated paper, wallpaper backing paper, and flame-retardant paper obtained by mixing or impregnating a flame retardant into these papers. The paper substrate may contain additives such as flame retardants, inorganic agents, dry strength agents, wet strength agents, colorants, sizing agents, and fixing agents, as necessary.

[0068] The resin substrate typically contains a synthetic resin. Examples of synthetic resins include olefin-based resins such as polyethylene resin, polypropylene resin, and polymethylpentene resin; vinyl-based resins such as polyvinyl chloride resin, polyvinylidene chloride resin, polyvinyl alcohol resin, vinyl chloride-vinyl acetate copolymer resin, ethylene-vinyl acetate copolymer resin, and ethylene-vinyl alcohol copolymer resin; ester-based resins such as polyethylene terephthalate resin, polybutylene terephthalate resin, and ethylene naphthalate-isophthalate copolymer resin; (meth)acrylic resins such as polymethyl methacrylate resin, polyethyl methacrylate resin, and polybutyl(meth)acrylate resin; amide-based resins such as nylon 6 and nylon 66; cellulose-based resins such as cellulose triacetate resin and cellophane; styrene-based resins; carbonate-based resins; arylate-based resins; and imide-based resins. The resin substrate may contain additives such as flame retardants, antioxidants, plasticizers, colorants, antioxidants, UV absorbers, and light stabilizers, as needed.

[0069] The substrate layer may be a laminate of the above substrates. Examples of the laminate include a laminate of different types of paper substrates, a laminate of different types of resin substrates, and a laminate of a paper substrate and a resin substrate. An adhesive layer may be disposed between adjacent layers of the laminate.

[0070] The thickness of the substrate layer is not particularly limited, but is, for example, 50 μm or more and 250 μm or less, or may be 80 μm or more and 230 μm or less, or 100 μm or more and 200 μm or less. If the thickness of the substrate layer is too small, the durability of the decorative sheet may be reduced. On the other hand, if the thickness of the substrate layer is too thick, the flexibility of the decorative sheet may be reduced. Furthermore, when the substrate layer is a paper substrate, the basis weight of the paper substrate is, for example, 20 g / m 2 More than 150g / m 2 less than 25 g / m 2 More than 100g / m 2 It may be less than 40 g / m 2 More than 60g / m 2 The following ranges may also be used:

[0071] 7. Decorative sheets As shown in FIG. 1(a), the decorative sheet 10 is made up of a base material layer 1, a design layer 2, a patterned convex layer 5, an adhesive layer 3, and a nonwoven fabric layer 4 arranged in a thickness direction D T 1(b), the decorative sheet 10 may have a surface protective layer 6 on the side of the nonwoven fabric layer 4 opposite the adhesive layer 3. As shown in FIG. 4, the decorative sheet 10 may have a second adhesive layer 7 on the side of the base material layer 1 opposite the design layer 2. When distinguishing it from the second adhesive layer 7, the adhesive layer 3 may be referred to as the first adhesive layer 3.

[0072] The second adhesive layer contains, for example, a resin. Examples of the resin include (meth)acrylic resins, urethane resins, vinyl chloride resins, vinyl acetate resins, vinyl chloride-vinyl acetate copolymer resins, styrene-(meth)acrylic copolymer resins, polyester resins, and amide resins. The second adhesive layer may also contain a pressure-sensitive adhesive. Examples of the pressure-sensitive adhesive include (meth)acrylic pressure-sensitive adhesives, urethane pressure-sensitive adhesives, silicone pressure-sensitive adhesives, and rubber pressure-sensitive adhesives.

[0073] The thickness of the second adhesive layer is not particularly limited, but may be, for example, 5 μm or more and 50 μm or less, or 10 μm or more and 30 μm or less. Furthermore, as shown in FIG. 4, the decorative sheet 10 may have a separator layer 8 on the side of the second adhesive layer 7 opposite the base layer 1. A known separator can be used as the separator layer. Alternatively, as shown in FIGS. 1(a) and (b), the decorative sheet 10 does not necessarily have a second adhesive layer.

[0074] B. Manufacturing method of decorative sheet 5 is a schematic cross-sectional view illustrating a method for manufacturing a decorative sheet according to the present disclosure. As shown in FIG. 5(a), a design layer 2 is formed on one side of a base layer 1. Next, as shown in FIG. 5(b), a patterned convex layer 5 is formed on the side of the design layer 2 opposite the base layer 1. This allows the base layer 1, the design layer 2, and the patterned convex layer 5 to be aligned in the thickness direction D. T In this step, a first laminate L1 having the above-mentioned components is prepared (first laminate preparation step).

[0075] Next, as shown in Fig. 5(c), an adhesive layer 3 is formed on the surface of the first laminate L1 facing the convex layer 5, thereby preparing a second laminate L2 (second laminate preparation step). Next, as shown in Fig. 5(d), a nonwoven fabric layer 4 is placed on the surface of the second laminate L2 facing the adhesive layer 3, and the second laminate L2 and the nonwoven fabric layer 4 are adhered together (nonwoven fabric layer installation step). Next, as shown in Fig. 5(e), a surface protective layer 6 is formed on the surface of the nonwoven fabric layer 4 opposite the adhesive layer 3 (surface protective layer formation step). By performing these steps, a decorative sheet 10 is obtained.

[0076] According to the present disclosure, by carrying out the steps described above, a decorative sheet that can impart a good sense of depth can be obtained.

[0077] 1. First laminate preparation process The first laminate preparation step is a step of preparing a first laminate having a base layer, a design layer, and a patterned convex layer in this order in the thickness direction.

[0078] One method for preparing the first laminate is to form a design layer 2 on one side of a base layer 1, and then form a patterned convex layer 5 on the side of the design layer 2 opposite the base layer 1, as shown in Figures 5(a) and (b).

[0079] The design layer can be formed, for example, by applying a resin composition (ink) for forming the design layer to one side of the base layer, such as gravure printing, silk screen printing, gravure offset printing, flexographic printing, or inkjet printing.

[0080] The patterned convex layer can be formed, for example, by applying a resin composition (ink) for forming the convex layer to one surface of the base layer, for example, by the printing method described above.

[0081] 2. Second laminate preparation process The second laminate formation step is a step of forming an adhesive layer on the surface of the first laminate on the convex layer side to prepare a second laminate.

[0082] As shown in FIG. 5(c), the second laminate L2 is T From this perspective, the region overlapping with the convex layer 5 is referred to as the first region R1, and the region not overlapping with the convex layer 5 is referred to as the second region R2. The adhesive layer 3 is usually formed in both the first region R1 and the second region R2. In addition, in the first region R1 of the second laminate L2, the distance from the surface of the convex layer 5 on the design layer 2 side to the surface of the adhesive layer 3 on the opposite side to the convex layer 5 (thickness direction D T In the second region R2 of the second laminate L2, the distance (in the thickness direction D) from the surface of the adhesive layer 3 on the side of the design layer 2 to the surface of the adhesive layer 3 on the opposite side to the convex layer 5 is defined as x. T The absolute value of the difference between distance x and distance y is, for example, 3 μm or less, and may be 1 μm or less. Distance x and distance y are calculated as the average value of multiple distances measured from cross-sectional images taken using a scanning electron microscope (SEM). A large number of samples is preferable, for example, 100 or more.

[0083] An example of a method for forming the adhesive layer is to apply a resin composition for forming the adhesive layer to the surface of the first laminate on which the convex layer is located. The convex layer side of the first laminate refers to the surface of both sides of the first laminate that faces the convex layer relative to the base layer. An example of a coating method is the printing method described above.

[0084] 3. Non-woven fabric layer arrangement process The nonwoven fabric layer disposing step is a step of disposing a nonwoven fabric layer on the adhesive layer side of the second laminate and bonding the second laminate and the nonwoven fabric layer together. The adhesive layer side of the second laminate refers to the adhesive layer side of the second laminate, relative to the base material layer.

[0085] Methods for bonding the second laminate and the nonwoven fabric layer include, for example, extrusion lamination (sand lamination), dry lamination, and thermocompression bonding. When bonding the second laminate and the nonwoven fabric layer, controlling conditions such as the pressing force and heating temperature allows part of the resin for forming the adhesive layer to penetrate into the nonwoven fabric layer.

[0086] 4.Surface protective layer formation process The surface protection layer forming step is a step of forming a surface protection layer on the side of the nonwoven fabric layer opposite to the adhesive layer.

[0087] An example of a method for forming the surface protective layer is a method in which a resin composition (coating liquid) for forming the surface protective layer is applied to the surface of the nonwoven fabric layer opposite the adhesive layer. The surface protective layer is usually formed in both the first region R1 and the second region R2. The resin for forming the surface protective layer may also permeate the nonwoven fabric layer, and the permeated resin component may fill the voids between the fibers that make up the nonwoven fabric. An example of a coating method is the printing method described above. If the resin composition is curable, a curing step is usually carried out after the resin composition has been applied. The curing conditions are appropriately selected depending on the type of resin composition.

[0088] 5. Decorative sheets The decorative sheet obtained by the above-mentioned steps is the same as that described above in "A. Decorative sheet."

[0089] C. Decorative materials Fig. 6 is a schematic cross-sectional view illustrating a decorative member according to the present disclosure. The decorative member 20 shown in Fig. 6 comprises an adherend 11 and the decorative sheet 10 described above. The decorative sheet 10 comprises a second adhesive layer 7, and the base layer 1 of the decorative sheet 10 is bonded to the adherend 11 via the second adhesive layer 7.

[0090] According to the present disclosure, by using the decorative sheet described above, a decorative member can be obtained that can impart a good glossy matte feel.

[0091] 1. Decorative sheet The decorative sheet in this disclosure is the same as that described above in "A. Decorative Sheet."

[0092] 2.Subject material The adherend member in the present disclosure is a member decorated with a decorative sheet. An example of the adherend member is a resin member. Examples of resins used in resin members include vinyl chloride resins, (meth)acrylic resins, ester resins, styrene resins, olefin resins, acrylonitrile-butadiene-styrene copolymers (ABS resins), phenolic resins, cellulose resins, and rubber. Another example of the adherend member is a wood member. Examples of wood members include wood veneers, wood plywood, particle board, and wood fiberboard. Examples of wood used in wood members include cedar, cypress, pine, and lauan.

[0093] Another example of the adherend member is a metal member. Examples of metals used for the metal member include iron, iron alloys (e.g., carbon steel and stainless steel), and aluminum. Another example of the adherend member is a ceramic member. The material of the ceramic member may be ceramics such as glass or porcelain, or may be a non-cement ceramic material such as gypsum, or a non-ceramic ceramic material such as ALC (lightweight aerated concrete).

[0094] The shape of the adherend is not particularly limited, and examples include plate-like, sheet-like, and three-dimensional shapes. Furthermore, the adherend may have a flat surface, a curved surface, or both a flat surface and a curved surface as the portion to be decorated with the decorative sheet. Furthermore, the adherend may have at least one of a convex portion, a concave portion, a convex ridge portion, a concave ridge portion, and a through portion.

[0095] 3.Third adhesive layer The decorative member of the present disclosure may have a third adhesive layer between the adherend and the decorative sheet. Examples of resins used in the third adhesive layer include the same resins as those used in the second adhesive layer described above.

[0096] 4. Decorative materials The decorative member of the present disclosure has the decorative sheet and the attachment member described above. The uses of the decorative member of the present disclosure are not particularly limited, but include, for example, architectural components such as walls, ceilings, floors, roofs, eaves, fences, and gates; fittings or fixtures such as window frames, doors, handrails, baseboards, moldings, and other building components; general furniture such as chests of drawers, shelves, and desks; kitchen furniture such as dining tables and sinks; various types of furniture used in wet areas such as kitchens, toilets, bathrooms, and washbasins; surface decorative panels for cabinets and other appliances and office equipment; and interior or exterior components for vehicles. The decorative member of the present disclosure may be a component used outdoors (exterior component) or a component used indoors (interior component).

[0097] The decorative member of the present disclosure can be obtained, for example, by laminating a decorative sheet and an adherend. Specifically, the decorative sheet is laminated facing the adherend. One example of a method for manufacturing a decorative member is a method in which the second adhesive layer of the decorative sheet and the adherend are laminated in direct contact. Another example of a method for manufacturing a decorative sheet is a method in which the surface of the decorative sheet facing the base layer is laminated to the adherend via a third adhesive layer.

[0098] Methods for laminating the decorative sheet and the adherend include, for example, lamination, wrapping, and vacuum forming. For example, when laminating the decorative sheet and the adherend, if a hot melt adhesive (heat-sensitive adhesive) is used as the third adhesive layer, the heating temperature is, for example, 150°C or higher and 200°C or lower. For example, when a reactive hot melt adhesive is used, the heating temperature is, for example, 100°C or higher and 130°C or lower.

[0099] The present disclosure is not limited to the above-described embodiments. The above-described embodiments are merely examples, and anything that has substantially the same configuration as the technical idea described in the claims of the present disclosure and exhibits similar effects is included within the technical scope of the present disclosure. [Example]

[0100] [Example 1] Paper base material ("CHPS (product number)" manufactured by TENTOKU Corporation, thickness: 45 μm, basis weight: 45 g / m 2A solid layer (thickness: 1 μm) was formed on the paper substrate by gravure printing using an ink for forming the solid layer (a resin composition containing an acrylic resin as a binder, a pigment containing titanium oxide, and a polyisocyanate as a curing agent). Next, a pattern layer (thickness: 2 μm) having a wood grain pattern was formed on the solid layer by gravure printing using an ink for forming the pattern layer (a resin composition containing soluble nitrocellulose and an alkyd resin as a binder, and a pigment containing carbon black). In this way, a design layer having a solid layer and a pattern layer was formed on the paper substrate. Next, the ink for forming the convex layer described below was applied on the pattern by gravure printing to form a patterned convex layer with a thickness of 3 μm. The convex layer was formed so as to overlap the non-conduit portions of the wood grain pattern, thereby obtaining a first laminate. <Ink for forming the convex layer> Resin (nitrocellulose and alkyd resin) ... 100 parts by mass Pearl pigment (particle size 5 μm to 25 μm) ... 125 parts by weight

[0101] Thereafter, a resin composition for forming an adhesive layer (a resin composition containing 100 parts by mass of polyester resin and 18.5 parts by mass of a urethane group-containing resin as a curing agent) was applied to the design layer and the convex layer of the first laminate by gravure printing at a rate of 11 g / m 2 The adhesive layer was formed by applying a coating amount of 130 μm (dry basis) to the nonwoven fabric containing polyester fibers and acrylic fibers (thickness: 130 μm, basis weight: 25 g / m). 2 ) was prepared, and the surface of the second laminate on the side of the convex layer was laminated to the nonwoven fabric by thermocompression bonding to obtain a third laminate having a base layer, a design layer, a convex layer, an adhesive layer, and a nonwoven fabric layer.

[0102] Thereafter, a resin composition for forming a surface protective layer (a resin composition containing 100 parts by mass of an acrylic polyol-based resin and 31 parts by mass of a polyisocyanate as a curing agent) was applied to the nonwoven fabric layer of the third laminate in an amount of 11 g / m. 2(dry base) to form a surface protective layer, thereby obtaining a decorative sheet having a base layer, a design layer, a convex layer, an adhesive layer, a nonwoven fabric layer, and a surface protective layer.

[0103] [Example 2] Paper base material ("CHPS (product number)" manufactured by TENTOKU Corporation, thickness: 45 μm, basis weight: 45 g / m 2 A solid layer (thickness: 1 μm) was formed on the paper substrate by gravure printing using an ink for forming the solid layer (a resin composition containing an acrylic resin as a binder, a pigment containing titanium oxide, and a polyisocyanate as a curing agent). Next, a pattern layer (thickness: 2 μm) having a wood grain pattern was formed on the solid layer by gravure printing using an ink for forming the pattern layer (a resin composition containing soluble nitrocellulose and an alkyd resin as a binder, and a pigment containing carbon black). In this way, a design layer having a solid layer and a pattern layer was formed on the paper substrate. Next, the ink for forming the convex layer described below was applied on the pattern by gravure printing to form a patterned convex layer with a thickness of 10 μm. The convex layer was formed so as to overlap with the duct portion of the wood grain pattern, thereby obtaining a first laminate. <Ink for forming the convex layer> Resin (acrylic polyol resin) ... 100 parts by mass Curing agent (polyisocyanate) ... 30 parts by mass Organic particles (spherical polymethyl methacrylate particles, average particle size 20 μm) ... 33 parts by mass ·Solvent (butyl acetate, ethyl acetate)

[0104] Thereafter, a resin composition for forming an adhesive layer (a resin composition containing 100 parts by mass of polyester resin and 18.5 parts by mass of a urethane group-containing resin as a curing agent) was applied to the design layer and the convex layer of the first laminate by gravure printing at a rate of 11 g / m 2 The adhesive layer was formed by applying a coating amount of 130 μm (dry basis) to the nonwoven fabric containing polyester fibers and acrylic fibers (thickness: 130 μm, basis weight: 25 g / m). 2) was prepared, and the surface of the second laminate on the side of the convex layer was laminated to the nonwoven fabric by thermocompression bonding to obtain a third laminate having a base layer, a design layer, a convex layer, an adhesive layer, and a nonwoven fabric layer.

[0105] Thereafter, a resin composition for forming a surface protective layer (a resin composition containing 100 parts by mass of an acrylic polyol-based resin and 31 parts by mass of a polyisocyanate as a curing agent) was applied to the nonwoven fabric layer of the third laminate in an amount of 11 g / m. 2 (dry base) to form a surface protective layer, thereby obtaining a decorative sheet having a base layer, a design layer, a convex layer, an adhesive layer, a nonwoven fabric layer, and a surface protective layer.

[0106] [Comparative Example 1] Paper base material ("CHPS (product number)" manufactured by TENTOKU Corporation, thickness: 45 μm, basis weight: 45 g / m 2 A solid layer (thickness: 1 μm) was formed on the paper substrate by gravure printing using an ink for forming a solid layer (a resin composition containing an acrylic resin as a binder, a pigment containing titanium oxide, and a polyisocyanate as a curing agent). Next, a picture layer (thickness: 2 μm) having a wood grain pattern was formed on the solid layer by gravure printing using an ink for forming a picture layer (a resin composition containing soluble nitrocellulose and an alkyd resin as a binder, and a pigment containing carbon black). In this way, a design layer having a solid layer and a picture layer was formed on the paper substrate.

[0107] Thereafter, a resin composition for forming an adhesive layer (a resin composition containing 100 parts by mass of polyester resin and 18.5 parts by mass of a urethane group-containing resin as a curing agent) was applied to the design layer by gravure printing at a rate of 11 g / m 2 The adhesive layer was then formed by applying a coating amount of 130 μm thick nonwoven fabric (thickness: 130 μm, basis weight: 25 g / m) containing polyester fibers and acrylic fibers. 2 ) was prepared, and the adhesive layer and the nonwoven fabric were laminated by thermocompression to obtain a laminate having a base layer, a design layer, an adhesive layer, and a nonwoven fabric layer.

[0108] Thereafter, a resin composition for forming a surface protective layer (a resin composition containing 100 parts by mass of an acrylic polyol-based resin and 31 parts by mass of a polyisocyanate as a curing agent) was applied on the nonwoven fabric layer of the laminate in an amount of 11 g / m. 2 (dry base) to form a surface protective layer, thereby obtaining a decorative sheet having a base layer, a design layer, an adhesive layer, a nonwoven fabric layer, and a surface protective layer.

[0109] Comparative Example 2 A design layer (thickness: 2 μm) with a wood grain pattern was formed on a resin substrate ("CH-10 (product number)" manufactured by Bando Chemical Co., Ltd., thickness: 100 μm) by gravure printing using an ink for forming a design layer (a resin composition containing a 1:1 mass ratio mixture of vinyl chloride-vinyl acetate copolymer resin and acrylic resin as a binder, and containing a pigment including carbon black).

[0110] Then, a nonwoven fabric (thickness: 130 μm, basis weight: 25 g / m) containing polyester fiber and acrylic fiber was applied to the design layer. 2 ) was placed on the sheet and thermally laminated to obtain a laminate having a base layer, a design layer, an adhesive layer, and a nonwoven fabric layer.

[0111] Thereafter, a resin composition for forming a surface protective layer (a resin composition containing 100 parts by mass of a vinyl chloride-vinyl acetate copolymer resin and 10 parts by mass of a polyisocyanate as a curing agent) was applied to the nonwoven fabric layer of the laminate in an amount of 8 g / m. 2 (dry base) to form a surface protective layer, thereby obtaining a decorative sheet having a base layer, a design layer, a nonwoven fabric layer, and a surface protective layer.

[0112] [evaluation] The decorative sheets obtained in Examples 1 and 2 and Comparative Examples 1 and 2 were colored by applying a dark oil-based stain paint, and the sense of depth of the design on the colored decorative sheets was evaluated as a glossy / matt feel. Specifically, 20 subjects (5 each in their 20s, 30s, 40s, and 50s) visually observed the colored decorative sheets from the surface protective layer side and evaluated the glossy / matt feel. The evaluation was carried out under fluorescent lighting indoors, with external light blocked. The evaluation criteria were as follows. The results are shown in Table 1. <Evaluation criteria> ◎: 15 or more people answered that there was a glossy matte feel. ○: 11 or more and 14 or less people answered that there was a glossy matte feel. △: Five or more and ten or less people answered that there was a glossy matte feel. ×: Four or fewer people answered that there was a glossy matte feel.

[0113] [Table 1]

[0114] As shown in Table 1, it was confirmed that a good gloss matte feel (sense of depth) was obtained in Examples 1 and 2. In particular, an excellent gloss matte feel (sense of depth) was obtained in Example 1. This is thought to be because, in addition to the difference in penetration depth of the stain paint, a clearer gloss matte feel (sense of depth) was achieved due to the brightness of the pearl pigment added to the convex layer. On the other hand, in Comparative Examples 1 and 2, the gloss matte feel (sense of depth) was inferior to Examples 1 and 2.

[0115] Thus, the present disclosure provides, for example, the following inventions.

[0116] [1] A decorative sheet having a base layer, a design layer, an adhesive layer, and a nonwoven fabric layer in this order in the thickness direction, A decorative sheet, wherein a patterned convex layer is disposed between the design layer and the adhesive layer.

[0117] [2] The decorative sheet according to [1], wherein the convex layer contains particles.

[0118] [3] The decorative sheet according to [2], wherein the convex layer contains at least one of a glitter pigment and a filler as the particles.

[0119] [4] The decorative sheet according to [3], wherein the luster pigment is a pearl pigment.

[0120] [5] The decorative sheet according to any one of [1] to [4], wherein the thickness of the convex layer is 2 μm or more and 15 μm or less.

[0121] [6] The design layer includes a pattern layer having a pattern, The decorative sheet according to any one of [1] to [5], wherein the convex layers are arranged according to the pattern when viewed in the thickness direction.

[0122] [7] The decorative sheet according to any one of [1] to [6], wherein the decorative sheet has a surface protective layer on the side of the nonwoven fabric layer opposite the adhesive layer.

[0123] [8] a first laminate preparation step of preparing a first laminate having a base layer, a design layer, and a patterned convex layer in this order in the thickness direction; a second laminate preparation step of forming an adhesive layer on the surface of the first laminate on the convex layer side to prepare a second laminate; a nonwoven fabric layer providing step of providing a nonwoven fabric layer on the adhesive layer side of the second laminate and adhering the second laminate and the nonwoven fabric layer together; A method for producing a decorative sheet having the above structure.

[0124] [9] A decorative member comprising an adherend and the decorative sheet according to any one of [1] to [7]. [Explanation of symbols]

[0125] 1...Base material layer 2...Design layer 3...adhesive layer 4...Nonwoven fabric layer 5…Convex layer 6…Surface protective layer 10...Decorative sheet 11…Subject member 20...Decorative parts

Claims

1. A decorative sheet having a base layer, a design layer, an adhesive layer, and a nonwoven fabric layer in this order in the thickness direction, A decorative sheet, wherein a patterned convex layer is disposed between the design layer and the adhesive layer.

2. The decorative sheet according to claim 1 , wherein the convex layer contains particles.

3. The decorative sheet according to claim 2 , wherein the convex layer contains at least one of a glitter pigment and a filler as the particles.

4. 4. The decorative sheet according to claim 3, wherein the luster pigment is a pearl pigment.

5. 2. The decorative sheet according to claim 1, wherein the thickness of said convex layer is 2 μm or more and 15 μm or less.

6. The design layer includes a pattern layer having a pattern, The decorative sheet according to claim 1 , wherein the convex layers are arranged according to the pattern when viewed in the thickness direction.

7. 2. The decorative sheet according to claim 1, wherein the decorative sheet has a surface protective layer on the side of the nonwoven fabric layer opposite the adhesive layer.

8. a first laminate preparation step of preparing a first laminate having a base layer, a design layer, and a patterned convex layer in this order in a thickness direction; a second laminate preparation step of forming an adhesive layer on the surface of the first laminate facing the convex layer to prepare a second laminate; a nonwoven fabric layer providing step of providing a nonwoven fabric layer on the adhesive layer side of the second laminate and adhering the second laminate and the nonwoven fabric layer together; A method for producing a decorative sheet having the above structure.

9. A decorative member comprising an adherend and the decorative sheet according to any one of claims 1 to 7.

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