JP2022168620A - Decorative sheet and decorative material - Google Patents

Abstract

To provide a decorative sheet having a texture closer to a real object, and having excellent designability.SOLUTION: In a decorative sheet, a pattern layer 2 includes a pale color part 2a and a dark color part 2b having a color darker than the pale color part 2a, and a surface protective layer 4 includes a high-gloss part 4a and a low-gloss part 4b having a glossiness lower than the high-gloss part 4a. The dark color part 2b and the low-gloss part 4b are overlapped so that the dark color part 2b and the low-gloss part 4b are synchronized when observed from a side of the surface protective layer 4.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to resin decorative sheets and decorative materials. In particular, the present invention relates to a decorative sheet and its decorative material that are excellent in design and can be used for fitting materials, flooring materials, and their surroundings by bonding to wooden base materials or the like.

Decorative sheets have been developed and advanced in the process of developing residential construction as an industry. Originally, houses were built using materials such as wood and stone that matched the characteristics of the region. Moreover, in recent years, the frequent use of high-grade wood and stone materials may lead to deforestation and environmental problems, which is one of the factors that increase the demand for decorative sheets. For example, plywood, MDF (medium density fiberboard), wood base materials such as particle board, resin base materials, inorganic noncombustible base materials, metal base materials, etc., and decorative sheets are widely used as decorative materials (for example, , see Patent Document 1).
In addition, the design of the decorative sheet often imitates the surface of wood, stone, or the like.

Japanese Patent No. 5045180

However, the decorative sheet tends to have a flat surface texture compared to real wood or stone. Actual wood and stone materials have different textures due to differences in unevenness depending on the location due to differences in surface materials and structures. Parts with different textures often have different colors, but this is not expressed on the decorative sheet, and the expensive real thing is much superior in terms of design.
The present invention has been made in view of the above points, and it is an object of the present invention to provide a decorative sheet and a decorative material that have a more realistic texture and excellent design properties.

In order to solve the above problems, the decorative sheet which is one aspect of the present invention is a decorative sheet in which (a) a pattern layer, a transparent resin layer and a surface protective layer are laminated in this order, and (b) the pattern layer comprises , including a light-colored portion and a dark-colored portion darker than the light-colored portion, (c) the surface protective layer includes a high-gloss portion and a low-gloss portion having a lower gloss than the high-gloss portion, and (d) a surface protective layer The dark color portion and the low gloss portion overlap so that the dark color portion and the low gloss portion are aligned when viewed from the side.
A decorative material, which is one aspect of the present invention, includes (a) the above-described decorative sheet, and (b) a base material bonded to the decorative sheet.

ADVANTAGE OF THE INVENTION According to one aspect of the present invention, it is possible to provide a decorative sheet and a decorative material having a texture close to that of the surface of wood, stone, or the like used for building materials and having excellent design properties.

It is a schematic diagram which shows the cross-sectional structure of the decorative sheet which concerns on embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In this embodiment, decorative sheets and decorative materials for floors or fittings will be described as examples, but decorative sheets and decorative materials used for other parts may also be used.
Here, the drawings are schematic, and the relationship between the thickness and the planar dimension, the ratio of the thickness of each layer, and the like are different from the actual ones. Further, the embodiments shown below are examples of configurations for embodying the technical idea of the present invention. not specific to Various modifications can be made to the technical idea of the present invention within the technical scope defined by the claims.

As shown in FIG. 1, the decorative sheet 1 of this embodiment is formed by laminating a pattern layer 2, a transparent resin layer 3, and a surface protective layer 4 in this order. FIG. 1 illustrates the case where the base sheet 5 is arranged on the surface of the pattern layer 2 opposite to the surface on the transparent resin layer 3 side. Also, the decorative material 7 of the present embodiment is configured by bonding the decorative sheet 1 to the base material 6 .

[Base material]
As the base material 6, for example, plywood made of South Sea wood, particle board, medium density fiberboard (MDF), ordinary plywood defined by Japanese Agricultural Standards, and wood powder-added olefin resin can be used. Alternatively, for example, it may be a metal such as aluminum, a resin such as plastic, or a composite material thereof. The thickness of the base material 6 is preferably 3 mm or more and 25 mm or less.

[Base sheet]
As the base sheet 5, for example, paper or plastic film can be used. Examples include coated paper and thermoplastic resin films. Examples of thermoplastic resins include polyvinyl chloride, polyethylene terephthalate, polybutylene terephthalate, polyamide, polyethylene, polypropylene, polycarbonate, polyethylene naphthalate, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene- acrylic Acid ester copolymers, ionomers, acrylic acid esters, methacrylic acid esters and the like are included. In particular, polyolefin-based resins are preferable in consideration of environmental compatibility, workability, and price. In addition, the grade and composition of the resin can be selected in consideration of ease of sheeting, printability, and suitability for bending, in addition to environmental compatibility, workability, and price.

When the base sheet 5 is colored, the hue can be appropriately selected so that the base material 6 to which the decorative sheet 1 is adhered is concealed and the base color of the pattern layer 2 is obtained. As a method for coloring the base sheet 5, for example, a method of mixing or kneading a coloring agent such as a pigment when sheeting the thermoplastic resin can be adopted. A method of providing a colored layer under the pattern layer 2 using a coating or printing method as a solid ink layer before providing the pattern layer 2 can also be employed.

[Pattern layer]
The pattern layer 2 is a printed layer on which a pattern is printed in order to impart a design to the decorative sheet 1 or the decorative material 7 . As a method for forming the pattern layer 2, a known printing method can be adopted. The printing method is not particularly limited, but the gravure printing method is preferable in consideration of productivity and image quality. Further, for example, when the base sheet 5 can be prepared in a rolled state, printing for forming the pattern layer 2 can be performed by using a roll-to-roll printing apparatus. In addition to these, printing methods include, for example, offset printing, screen printing, flexographic printing, electrostatic printing, inkjet printing, transfer printing from a transfer sheet, and the like. When such a printing method is used, the picture pattern of the picture layer 2 can be formed by multi-color printing using normal process colors of yellow, red, blue and black. It can also be formed by multi-color printing using special colors using a plate.

Moreover, the design pattern of the design layer 2 may be any design pattern in consideration of the design of the floor material or fittings. For example, by imagining a floor made of stone such as marble, it is also possible to use the grain of marble as a picture pattern. In addition, for example, in the case of a wooden pattern, various wood grains and cork can be used as the pattern. Further, for example, in addition to the patterns of natural materials, artificial patterns such as geometric patterns and artificial patterns using these as motifs can also be used. In addition to these, as picture patterns, for example, spring wood region and autumn wood region of annual ring cross section, wood grain pattern composed of vessel part etc., leather (skin grain) pattern, stone surface such as marble, granite, sandstone etc. stone patterns, grain patterns, tiling patterns, brickwork patterns, cloth patterns, geometric figures, letters, symbols, abstract patterns, flower patterns, landscapes, characters, and the like.

In addition, the picture pattern has shades of colors. That is, the picture layer 2 includes a light-colored portion 2a and a dark-colored portion 2b darker than the light-colored portion 2a. In FIG. 1, the pattern layer 2 has a light-colored portion 2a and a dark-colored portion 2a in a direction perpendicular to the thickness direction (horizontal direction in FIG. 1) in a cross section in the thickness direction of the decorative sheet 1 (the cross section shown in FIG. 1). A case in which the portions 2b are alternately arranged is illustrated. For example, when the picture pattern is wood grain, the conduit portion becomes the dark colored portion 2b. Further, in the CIE1976L*a*b* color space, it is preferable that the color difference ΔE between the light color portion 2a and the dark color portion 2b is 5 or more. By setting the color difference ΔE to 5 or more, the pattern of the pattern layer 2 can be made clearer, and the design of the decorative sheet 1 can be further improved. Further, the color difference ΔE is more preferably 7 or more. The CIE1976L*a*b* color space is defined by JISZ8781-4. ΔE is measured using a color difference meter (eg, eXact manufactured by X-Rite).

Printing inks are mixtures of solvents and solids such as colorants and binder resins.
Examples of solvents include petroleum organic solvents such as hexane, heptane, octane, toluene, xylene, ethylbenzene, cyclohexane, and methylcyclohexane; Ester-based organic solvents; Alcohol-based organic solvents such as methyl alcohol, ethyl alcohol, normal propyl alcohol, isopropyl alcohol, isobutyl alcohol, ethylene glycol, and propylene glycol; Ketone-based organic solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone; Diethyl Ether-based organic solvents such as ether, dioxane and tetrahydrofuran; chlorine-based organic solvents such as dichloromethane, carbon tetrachloride, trichlorethylene and tetrachlorethylene; and inorganic solvents such as water. A solvent may be used individually by 1 type, and may be used in combination of 2 or more type.

Binder resins include chlorine-based resins, urethane resins, acrylic urethane resins, acrylic resins, polyester resins, polyamide resins, butyral resins, polystyrene resins, nitrocellulose resins (nitrocellulose), cellulose acetate resins, and the like. Examples of chlorine-based resins include polyvinyl chloride, chlorinated polyethylene, polyvinylidene chloride, ethylene-vinyl chloride copolymer, vinyl chloride-vinyl acetate copolymer, and vinyl chloride-vinyl acetate-(meth)acrylic copolymer. polyvinyl chloride-based resins, polypropylene chloride, chlorinated polypropylene, and the like. Here, (meth)acryl means acryl or methacryl. The binder resin may be used singly or in combination of two or more.

Examples of colorants include inorganic pigments such as carbon black, iron black, titanium white (titanium oxide), antimony white, yellow lead, titanium yellow, red iron oxide, cadmium red, ultramarine blue, cobalt blue; Examples include organic pigments such as indolinone yellow and phthalocyanine blue. The colorant may be used singly or in combination of two or more.
Here, the solvent contained in the printing ink finally volatilizes. Therefore, the pattern layer 2 is mainly formed of solids such as colorants and binder resins.

The printing ink may also contain stabilizers, plasticizers, catalysts, curing agents, etc. as other components. As the printing ink, an ink suitable for the printing method may be used. In particular, it is preferable to select it in consideration of adhesion to the base sheet 5, printability, and weather resistance as a floor material or fittings. The thickness of the pattern layer 2 can be appropriately adjusted in consideration of the decorativeness required for the pattern layer 2, the three-dimensional moldability of the decorative sheet 1, and the like. The thickness of the pattern layer 2 is usually 1 μm or more and 1 mm or less, preferably 2 μm or more and 0.1 mm or less, more preferably 2 μm or more and 50 μm or less.

If necessary, a uniformly colored masking layer (solid printing layer) may be formed on the surface of the pattern layer 2 facing the base sheet 5 . The concealing layer is a layer that can impart an intended color to adjust the color of the surface when the base sheet 5 is colored or uneven in color. The concealing layer is, for example, a colored solid layer. The colored solid layer is, for example, an opaque solid layer. The concealing layer contains a binder resin and a colorant dispersed in the binder resin. As the binder resin and the coloring agent, the same ones as those for the pattern layer 2 can be appropriately selected and used.

The concealing layer is, for example, a printed layer. As for the printing method, the same method as that for the pattern layer 2 can be appropriately selected and used. Also, known coating methods such as gravure coating, roll coating, and spray coating can be used. The concealing layer ink composition (coating liquid) used for forming the concealing layer is, for example, a mixture of a solvent, a colorant, a binder resin, and other solids. The ink composition for the concealing layer may contain stabilizers, plasticizers, catalysts, curing agents, etc. as other components. As the solvent, colorant, and binder resin, the same printing inks as those used for the pattern layer 2 can be appropriately selected and used. As for the color of the coloring agent, when the surface protective layer 4 is embossed, it is preferable to print in a color associated with the embossing (for example, brown in the case of a wood grain pattern). The design of flooring materials and fittings is further improved. Since the solvent eventually evaporates, the masking layer is mainly composed of solid contents such as colorants and binder resins. The thickness of the masking layer can be appropriately adjusted in consideration of the masking properties, three-dimensional moldability, etc. required of the masking layer. The thickness of the masking layer is usually 1 μm to 1 mm, preferably 2 μm to 0.1 mm, more preferably 2 μm to 50 μm.

For the purpose of improving the adhesion between the pattern layer 2 and the transparent resin layer 3 and the adhesion between the pattern layer 2 and the base sheet 5, an adhesive layer (not shown) is provided on one or both sides of the pattern layer 2. good too. By strengthening these adhesions, the decorative sheet 1 can be given bendability to follow curved surfaces and perpendicular surfaces. The resin used for the adhesive layer (not shown) is not particularly limited. For example, a two-liquid curable urethane resin can be used. A coating device or a gravure printing device, for example, can be used to apply the resin used for the adhesive layer (not shown).

A glittering layer (not shown) may be provided between the pattern layer 2 and the transparent resin layer 3 for the purpose of suitably imparting design effects such as depth and brightness to the decorative sheet. The glitter layer (not shown) preferably contains a glitter pigment and a binder resin. Luster pigments include pearl pigments and metal pigments. In particular, a pearl pigment is preferable because it can suppress a decrease in the light transmittance of the glitter layer and does not impair the visibility of the pattern layer 2 .

A pearl pigment is a pigment capable of imparting pearl luster. For example, the surface of a base particle is coated with a metal oxide. Scale-like particles such as mica are preferable as the base particles. Metal oxides include oxides of metals such as titanium, iron, zirconium, silicon, aluminum and cerium. One type of metal oxide may be used alone, or two or more types may be used. Specific examples include titanium mica, iron oxide-coated mica, iron oxide-coated mica titanium, Prussian blue-coated mica titanium, Prussian blue-iron oxide-coated mica titanium, chromium oxide-coated mica titanium, carmine-coated mica titanium, organic pigment-coated mica titanium, oxide Oxide-coated mica such as titanium-coated mica and titanium oxide-coated synthetic mica; Oxide-coated glass powder such as titanium oxide-coated glass powder and iron oxide-coated glass powder; Oxide-coated metal particles such as titanium oxide-coated aluminum powder; Scale-like foil pieces such as lead carbonate, lead hydrogen arsenate, and bismuth oxide chloride; fish scale powder, shell pieces, pearl pieces, and the like.

Examples of metal pigments include pigments made of metals such as aluminum, brass, stainless steel, tin, zinc, copper, nickel, gold powder and silver, and alloys of these metals. A metal pigment may be used individually by 1 type, and may be used in combination of 2 or more types.
From the viewpoint of imparting an excellent design effect, the average particle size of the glitter pigment is preferably 40 μm or less, and more preferably 30 μm or less, when the glitter layer is formed using gravure printing, for example. more preferred. From the same point of view, the ratio of [average particle size of glitter pigment/thickness of glitter layer] is preferably 0.01 or more and 15 or less, more preferably 0.5 or more and 10 or less. In this specification, the "average particle size" is a value that can be determined as the mass average value D50 in particle size distribution measurement by laser light diffraction.

Examples of binder resins include thermoplastic resins and cured products of curable resin compositions, and cured products of curable resin compositions are preferred from the viewpoint of durability. The cured product of the curable resin composition includes a cured product of a thermosetting resin composition and a cured product of an ionizing radiation-curable resin composition. From the viewpoint of interlayer adhesion, a cured product of a thermosetting resin composition is preferred.

Thermosetting resin compositions used in the glitter layer include polyester resin compositions, epoxy resin compositions, polyurethane resin compositions, aminoalkyd resin compositions, melamine resin compositions, guanamine resin compositions, and urea resin compositions. and thermosetting acrylic resin compositions. These thermosetting resin compositions include monomers and/or prepolymers constituting each resin, and curing agents added as necessary. As the ionizing radiation-curable resin composition used for the glitter layer, the same ionizing radiation-curable resin composition as the ionizing radiation-curable resin composition for the surface protective layer 4 to be described later can be used.

The content of the bright pigment in the bright layer is preferably 10 parts by mass or more and 90 parts by mass or less, more preferably 50 parts by mass or more and 80 parts by mass or less with respect to 100 parts by mass of the binder resin. . By setting the content of the bright pigment to 10 parts by mass or more, it is possible to sufficiently impart a lustrous feeling, and by setting it to 90 parts by mass or less, it is possible to suppress deterioration of the visibility of the pattern layer described later. . From the same viewpoint, the thickness of the glitter layer is preferably 1 μm or more and 30 μm or less, more preferably 5 μm or more and 20 μm or less.

The glitter layer can form any pattern depending on the design to be imparted. Examples include wood grain patterns, leather patterns, stone grain patterns, sand grain patterns, tile patterns, brickwork patterns, texture patterns, geometric figures, characters, symbols, abstract patterns, flower patterns, landscapes, and characters. In addition, it is preferable that the arbitrary pattern has shading in order to further enhance the design effect. The shading may be formed from the size of the halftone dots or the thickness of the halftone dots, but it should be formed from the density of the halftone dots (that is, the halftone dots should be uniform in size and the shading should be formed by the density of the halftone dots). is preferred.
The glitter layer can be formed, for example, from a coating liquid containing a glitter pigment and a binder resin by general-purpose printing means such as gravure printing. When the gradation of the glitter layer is formed from the density of halftone dots, the halftone dots of the printing plate may be formed by an FM (frequency modulation) screen.

[Transparent resin layer]
The transparent resin layer 3 is a resin for protecting the pattern layer 2 and imparting good surface physical properties so that the decorative sheet 1 can be improved in weather resistance and abrasion resistance, while providing design thickness and depth. layer. As the material of the transparent resin layer 3, for example, vinyl chloride resin, acrylic resin, polyolefin resin (polypropylene resin, polyethylene resin) can be used. In particular, polyolefin-based resins are preferable in consideration of environmental compatibility, workability, and price. In addition, the grade and composition of the resin can be selected in consideration of ease of sheeting, printability, and suitability for bending, in addition to environmental friendliness, workability, and price. As for the suitability for bending, it is important to select it in consideration of the fact that whitening and cracking do not occur in the bent portion.
As a method for forming the transparent resin layer 3, for example, when the transparent resin layer 3 and an adhesive layer (not shown) are formed at the same time, a method of simultaneously extruding them by co-extrusion can be adopted.

[Surface protective layer]
The surface protective layer 4 is a layer for imparting surface physical properties such as abrasion resistance to the decorative sheet 1 . Moreover, the surface protective layer 4 is also a layer for adjusting the gloss of the surface of the decorative sheet 1 . The surface protective layer 4 may be a single layer or multiple layers. For example, as the surface protective layer 4, two layers of a first surface protective layer (not shown) and a second surface protective layer (not shown) can be provided on the transparent resin layer 3 in this order. When providing the surface protective layer 4 consisting of a first surface protective layer (not shown) and a second surface protective layer (not shown), each layer is coated with a known coating apparatus, Coating and curing of the coating film may be performed using a heat drying device and an ionizing radiation irradiation device.

The surface protective layer 4 is mainly composed of a curable resin. That is, it is preferable that the resin component of the surface protective layer 4 is substantially composed of a curable resin. "Substantially" means, for example, 80 parts by mass or more when the entire resin is 100 parts by mass. The surface protective layer 4 may contain, if necessary, a weather resistant agent, a plasticizer, a stabilizer, a filler, a dispersant, a coloring agent such as a dye or a pigment, a solvent, and the like.
An uneven pattern may be formed on the surface of the surface protective layer 4 in order to impart a given design property. Examples of uneven patterns include wood grain plate conduit grooves, stone plate surface unevenness (granite cleavage plane, etc.), cloth surface texture, satin finish, grain, hairline, and parallel grooves. For example, embossing can be employed as a method for forming the uneven pattern. The embossing method is not particularly limited. For example, a known sheet-fed embossing machine or rotary embossing machine can be employed.

Moreover, the surface of the surface protective layer 4 has high and low gloss. That is, the surface protective layer 4 includes a high gloss portion 4a and a low gloss portion 4b having a lower glossiness than the high gloss portion 4a. In FIG. 1, the surface protective layer 4 has a high-gloss portion 4a and a A case in which the low gloss portions 4b are alternately arranged is illustrated. Further, the low gloss portion 4b overlaps the dark color portion 2b so that the dark color portion 2b and the low gloss portion 4b are aligned when viewed from the surface protective layer 4 side. As the plane pattern of the low gloss portion 4b, for example, the same pattern as the plane pattern of the dark color portion 2b, a pattern one size smaller than the plane pattern of the dark color portion 2b, and one size larger than the plane pattern of the dark color portion 2b. patterns can be adopted. Further, the degree of overlap between the low gloss portion 4b and the dark color portion 2b is such that the low gloss portion 4b overlaps 80% or more (more preferably 90% or more) of 100% of the area of the dark color portion 2b. It is preferable to set it as the structure which has.

Moreover, the difference between the 85-degree specular glossiness of the high gloss portion 4a and the 85-degree specular glossiness of the low gloss portion 4b is preferably 2% or more. By setting the difference in 85-degree specular glossiness to 2% or more, the difference in glossiness of the surface protective layer 4 can be made clearer, and the design of the decorative sheet 1 can be further improved. Moreover, the low gloss portion 4b preferably has an 85-degree specular gloss of 8% or less. By setting the 85-degree specular glossiness to 8% or less, the glossiness of the low glossiness portion 4b can be sufficiently reduced, and the difference in glossiness of the surface protective layer 4 can be made clearer. Designability can be further improved.

[Ionizing radiation curable resin]
As the material of the surface protective layer 4, for example, an ionizing radiation curable resin or a two-liquid curable urethane resin can be used. The ionizing radiation-curable resin is not particularly limited. For example, transparent resins mainly composed of prepolymers (including oligomers) and/or monomers containing radically polymerizable double bonds capable of polymerizing and cross-linking when exposed to ionizing radiation such as ultraviolet rays and electron beams are adopted. can. These prepolymers or monomers can be used singly or in combination. Specifically, the prepolymer or monomer includes a compound having a radically polymerizable unsaturated group such as a (meth)acryloyl group or a (meth)acryloyloxy group, a cationically polymerizable functional group such as an epoxy group, or the like in the molecule. mentioned. A polyene/thiol prepolymer obtained by combining a polyene and a polythiol is also preferable. Here, a (meth)acryloyl group means an acryloyl group or a methacryloyl group.

Examples of prepolymers having radically polymerizable unsaturated groups include polyester (meth)acrylate, urethane (meth)acrylate, epoxy (meth)acrylate, melamine (meth)acrylate, triazine (meth)acrylate, and silicone (meth)acrylate. etc. The molecular weight of these is preferably about 2,500,000 to 100,000.
Examples of monomers having a radically polymerizable unsaturated group include monofunctional monomers such as methyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, and phenoxyethyl (meth)acrylate. Examples of polyfunctional monomers include diethylene glycol di(meth)acrylate, propylene glycol di(meth)acrylate, trimethylpropane tri(meth)acrylate, trimethylolpropane ethylene oxide tri(meth)acrylate, dipentaerythritol tetra( meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate and the like.

Examples of the prepolymer having a cationic polymerizable functional group include epoxy resins such as bisphenol type epoxy resins and novolac type epoxy compounds, and prepolymers of vinyl ether resins such as fatty acid vinyl ethers and aromatic vinyl ethers. .
Polyene-based prepolymers include, for example, those obtained by adding allyl alcohol to both ends of polyurethane made of diol and diisocyanate. Examples of thiol-based prepolymers include polythiols such as trimethylolpropane trithioglycolate and pentaerythritol tetrathioglycolate.

As the ionizing radiation, for example, electromagnetic waves or charged particles having energy capable of causing a curing reaction of molecules in the ionizing radiation-curable resin (composition) can be used. for example. Examples include ultraviolet rays, electron beams, visible rays, X-rays, and ion beams. The curing reaction includes, for example, a cross-linking curing reaction. As the ultraviolet light source, for example, a light source such as an ultra-high pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc lamp, a black light, or a metal halide lamp can be used. The wavelength of ultraviolet rays is preferably 190 nm or more and 380 nm or less, for example. As the electron beam source, for example, electron beam accelerators such as Cockcroft-Walton type, Vandegraft type, resonance transformer type, insulating core transformer type, linear type, dynamitron type, and high frequency type can be used. In particular, one capable of irradiating electrons having an energy of 100 keV or more and 1000 keV or less (more preferably electrons having an energy of 100 keV or more and 300 keV or less) is preferable.

Moreover, the two-liquid curing type urethane resin is not particularly limited. For example, one containing a polyol component having an OH group as a main agent and an isocyanate component as a curing agent component can be employed. Polyol components having OH groups include acrylic polyols, polyester polyols, polyether polyols, and epoxy polyols. Examples of the isocyanate component include tolylene diisocyanate, hexamethylene diisocyanate, and metaxylene diisocyanate.

As described above, in the decorative sheet 1 and the decorative material 7 according to the present embodiment, when viewed from the surface protective layer 4 side, the pattern layer 2 is formed such that the dark-colored portion 2b and the low-gloss portion 4b are aligned. and the low-gloss portion 4b of the surface protective layer 4 are overlapped with each other. Therefore, the texture of the surface can be expressed more three-dimensionally, and the difference in color due to the difference in the material and structure of the surface can also be expressed. Therefore, it is possible to provide the decorative sheet 1 and the decorative material 7 that have a more realistic texture and excellent design.

Examples and comparative examples of the decorative sheet 1 according to the embodiment of the present invention are described below. In addition, the present invention is not limited to the following examples.
(Example 1)
In Example 1, the color difference ΔE between the light color portion 2a and the dark color portion 2b of the pattern layer 2 is "3", the glossiness of the high gloss portion 4a of the surface protective layer 4 is "11%", and the glossiness of the low gloss portion 4b. A decorative sheet 1 was produced in which the degree of glossiness was "10%", the difference in glossiness was "1%", and the dark color portion 2b and the low glossiness portion 4b overlapped.
(Example 2)
In Example 2, the color difference ΔE between the light color portion 2a and the dark color portion 2b of the pattern layer 2 is "5", the glossiness of the high gloss portion 4a of the surface protective layer 4 is "11%", and the glossiness of the low gloss portion 4b. A decorative sheet 1 was produced in which the degree of glossiness was "10%", the difference in glossiness was "1%", and the dark color portion 2b and the low glossiness portion 4b overlapped.
(Example 3)
In Example 3, the color difference ΔE between the light color portion 2a and the dark color portion 2b of the picture layer 2 is "7", the glossiness of the high gloss portion 4a of the surface protective layer 4 is "11%", and the glossiness of the low gloss portion 4b. A decorative sheet 1 was produced in which the degree of glossiness was "10%", the difference in glossiness was "1%", and the dark color portion 2b and the low glossiness portion 4b overlapped.
(Example 4)
In Example 4, the color difference ΔE between the light color portion 2a and the dark color portion 2b of the picture layer 2 is "3", the glossiness of the high gloss portion 4a of the surface protective layer 4 is "12%", and the glossiness of the low gloss portion 4b. A decorative sheet 1 was produced in which the degree of glossiness was "10%", the difference in glossiness was "2%", and the dark color portion 2b and the low glossiness portion 4b overlapped.
(Example 5)
In Example 5, the color difference ΔE between the light color portion 2a and the dark color portion 2b of the picture layer 2 is "3", the glossiness of the high gloss portion 4a of the surface protective layer 4 is "10%", and the glossiness of the low gloss portion 4b. A decorative sheet 1 was prepared in which the degree of glossiness was "8%", the difference in glossiness was "2%", and the dark color portion 2b and the low glossiness portion 4b overlapped.

(Comparative example 1)
In Comparative Example 1, the glossiness difference between the high-gloss portion 4a and the low-gloss portion 4b of the surface protective layer 4 is "1%", but the pattern layer 2 does not have the dark-colored portion 2b (the light-colored pattern layer 2 A decorative sheet 1 was produced in which the color difference ΔE between the dark-colored portion 2a and the dark-colored portion 2b was "0") and the dark-colored portion 2b and the low-glossy portion 4b did not overlap.
(Comparative example 2)
In Comparative Example 2, the color difference ΔE between the light color portion 2a and the dark color portion 2b of the pattern layer 2 is "3", but the surface protective layer 4 does not have the low gloss portion 4b (the high gloss portion 4a and the low gloss portion 4b A decorative sheet 1 was produced in which the difference in glossiness between the two was "0%") and the dark-colored portion 2b and the low-glossy portion 4b did not overlap.
(Comparative Example 3)
In Comparative Example 3, the color difference ΔE between the light color portion 2a and the dark color portion 2b of the pattern layer 2 was "3", and the difference in glossiness between the high gloss portion 4a and the low gloss portion 4b of the surface protective layer 4 was " 1%”, but the decorative sheet 1 in which the dark color portion 2b and the low gloss portion 4b do not overlap was produced.

(performance evaluation)
Design properties were evaluated for the decorative sheets 1 of Examples 1 to 5 and Comparative Examples 1 to 3. In the evaluation of the design property, sensory evaluation was carried out by 10 people, and evaluation was made by the number of people who felt that the design was close to the real design.
◎: 9 or more people 〇: 8 people △: 6 to 7 people ×: 5 people or less

(Evaluation results)
The evaluation results are shown in Table 1 below.

As shown in Table 1, the decorative sheets 1 of Examples 1 to 4 were evaluated as acceptable in terms of designability, "Δ", "○", and "⊚". In particular, in the decorative sheets 1 of Examples 2 and 3, the color difference ΔE in the CIE1976L*a*b* color space between the light-colored portion 2a and the dark-colored portion 2b is 5 or more, so the designability is "○" or "⊚." passed. Among these, the decorative sheet 1 of Example 5 has a color difference ΔE of 7 or more in the CIE1976L*a*b* color space between the light-colored portion 2a and the dark-colored portion 2b. became. In addition, the decorative sheets 1 of Examples 4 and 5 have a difference of 2% or more in 85-degree specular glossiness between the high gloss portion 4a and the low gloss portion 4b. became. Among these, the decorative sheet 1 of Example 5 was evaluated as having an 85-degree specular gloss of 8% or less in the low-gloss portion 4b, and thus passed the design property of "A".

On the other hand, in the decorative sheet 1 of Comparative Example 1, since there is no dark-colored portion 2b, the color difference ΔE in the CIE1976L*a*b* color space between the light-colored portion 2a and the dark-colored portion 2b is 0, and the evaluation of designability is as follows. It became a failure "x". In addition, in the decorative sheet 1 of Comparative Example 2, since there is no low gloss portion 4b, the difference in 85 degree specular glossiness between the high gloss portion 4a and the low gloss portion 4b is 0%, and the evaluation of the design is disqualified. It became "x". In addition, in the decorative sheet 1 of Comparative Example 3, since the dark color portion 2b and the low gloss portion 4b do not overlap, the evaluation of the design property was rejected "x".
Therefore, it was confirmed that the decorative sheets 1 of Examples 1 to 4 are superior in design to the decorative sheets 1 of Comparative Examples 1 to 3.

DESCRIPTION OF SYMBOLS 1... Decorative sheet, 2... Pattern layer, 2a... Light color part, 2b... Dark color part, 3... Transparent resin layer, 4... Surface protective layer, 4a... High gloss part, 4b... Low gloss part, 5... Base material sheet , 6... Base material, 7... Cosmetic material

Claims (6)

A decorative sheet in which a pattern layer, a transparent resin layer and a surface protective layer are laminated in this order,
The pattern layer includes a light-colored portion and a dark-colored portion darker than the light-colored portion,
The surface protective layer includes a high gloss portion and a low gloss portion having a lower glossiness than the high gloss portion,
A decorative sheet in which the deep-colored portion and the low-gloss portion overlap so that the dark-colored portion and the low-gloss portion are aligned when viewed from the surface protective layer side. The decorative sheet according to claim 1, wherein a color difference ΔE in the CIE1976L*a*b* color space between the light color portion and the dark color portion is 5 or more. The decorative sheet according to claim 1 or 2, wherein a difference in 85-degree specular gloss between the high gloss area and the low gloss area is 2% or more. The decorative sheet according to any one of claims 1 to 3, wherein the low gloss portion has an 85-degree specular gloss of 8% or less. 5. The decorative sheet according to any one of claims 1 to 4, further comprising a base material sheet disposed on the surface of the pattern layer opposite to the transparent resin layer side. The decorative sheet according to any one of claims 1 to 5;
A decorative material comprising the base material attached to the decorative sheet.

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