JP2022052935A - Decorative material - Google Patents

Abstract

To provide a decorative material that is different in visual effect and feel from conventional ones.SOLUTION: A decorative material has a base material, and a patterned layer that lies on one side of the base material and includes a plurality of particle-containing projections arranged thereon. The plurality of projections include at least two projections with different thickness. The two projections each include particles with a specific average particle size that are included in one projection but not included in the other projection.SELECTED DRAWING: Figure 2

Description

The present invention relates to a decorative material.

Decorative materials are used on the surfaces of building materials, furniture, electric appliances, vehicle interior materials, and the like to impart designability. In order to enhance the design of the decorative material, a wood grain pattern, a stone grain pattern, a cloth grain pattern, a leather grain pattern, a geometric pattern, an abstract pattern, or the like may be applied as a printing pattern. Then, it has been proposed that the decorative material imparts an uneven appearance and a tactile sensation by forming a printed pattern with a thick film in order to further enhance the design (see, for example, Patent Document 1 and Patent Document 2).

Japanese Unexamined Patent Publication No. 2020-44817 Japanese Unexamined Patent Publication No. 2018-171771

In recent years, with the increasing high-class orientation of consumers or various needs, more complicated designs are required, and it is necessary to meet stricter demands. Although a decorative material having convex portions having different thicknesses such as Patent Document 1 and Patent Document 2 has a peculiar design property, it is required that the decorative material is different from this or further suppressed from becoming monotonous. It has become.

Therefore, in view of the above points, it is an object of the present disclosure to provide a decorative material having a different visual effect and tactile sensation.

One aspect of the present disclosure comprises a substrate and a pattern forming layer in which a plurality of convex portions containing particles are arranged on one surface side of the substrate, and the plurality of convex portions have a thickness. A decorative material containing at least two different types of convex portions, in which the two types of convex portions have particles having an average particle size that are contained in one convex portion and not included in the other convex portion.

According to the decorative material of the present disclosure, it is possible to provide a decorative material having a different visual effect and tactile sensation.

FIG. 1 is a perspective view schematically showing a part of the decorative material 10. FIG. 2 is a cross-sectional view schematically showing a part of the decorative material 10.

Hereinafter, each form will be described with reference to the drawings. The present invention is not limited to these forms. In the drawings shown below, the size and ratio of the members may be changed or exaggerated for the sake of clarity. In addition, for the sake of readability, illustrations of parts that are not necessary for explanation and reference numerals that are repeated may be omitted.

[Form of decorative material]
FIG. 1 is an enlarged perspective view of a part of the decorative material 10 according to one form, with the pattern forming layer 12 side facing up (+ z direction). For convenience, arrows (x, y, z) indicating directions, that is, a coordinate system, are also shown in the figures shown in FIGS. 1 and 2. Here, the xy direction is the in-plane direction of the decorative material 10, and the z direction is the thickness direction.
As can be seen from FIG. 1, in the present embodiment, the decorative material 10 has a base material 11 and a pattern forming layer 12 provided on one surface of the base material 11.
When the decorative material 10 expresses the appearance of a wood grain pattern, the wood for which the design is to be reproduced by the decorative material is not particularly limited, and examples thereof include cedar, cypress, walnut, pine, and cherry blossoms.
Hereinafter, each configuration will be described in detail.

<Base material>
The form of the base material 11 may be any of a film, a sheet, a flat plate, a curved plate and the like. The base material 11 is not particularly limited as long as it is usually used as a decorative material, and a resin base material, a metal base material, a ceramic base material, a fibrous base material, a wood base material, or the like can be used depending on the intended use. It can be selected as appropriate. Each of the above-mentioned base materials may be used alone, but for example, it is a laminated body made of an arbitrary combination such as a composite of a resin base material and a wood-based base material, a composite of a resin base material and a metal base material, and the like. May be good. When the base material 11 is a laminated body, a primer layer may be further provided between the respective layers of the laminated body.

Examples of the resin base material used as the base material 11 include those made of various synthetic resins. Examples of the synthetic resin include polyolefin resins such as polyethylene, polypropylene, polymethylpentene, ionomer, and various polyolefin-based thermoplastic elastomers, vinyl chloride-based resins such as polyvinyl chloride, polyvinylidene chloride, vinyl chloride-vinyl acetate copolymer, and polyethylene terephthalate. , Polybutylene terephthalate, polyethylene naphthalate, ethylene glycol-terephthalic acid-isophthalic acid copolymer, polyester resin such as polyester-based thermoplastic elastomer, methyl poly (meth) acrylate, ethyl poly (meth) acrylate, poly (meth) ) Butyl acrylate, acrylic resin such as methyl (meth) acrylate-(meth) butyl acrylate copolymer, polyamide resin typified by nylon 6 or nylon 66, cellulose triacetate, cellophane, celluloid and the like. Resin, polystyrene, styrene resin such as acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer (ABS), polyvinyl alcohol, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, polycarbonate resin, polyallylate Examples thereof include resins and polyimide resins.
In the specification of the present application, "(meth) acrylic acid", "(meth) acrylate", and "(meth) acryloyl group" are "acrylic acid or methacrylic acid", "acrylate or methacrylate", and, respectively. It means "acryloyl group or methacryloyl group".

Examples of the metal base material used as the base material 11 include an alloy containing aluminum such as aluminum or duralumin, an alloy containing iron such as iron or carbon steel and stainless steel, and an alloy containing copper such as copper or brass and bronze. Examples include those made of titanium and the like. Further, as the base material 11, those obtained by plating these metals or the like can also be used.

Examples of the ceramic base material used as the base material 11 include non-ceramic ceramic materials such as cement, ALC (lightweight cellular concrete), gypsum, calcium silicate, and wood piece cement, and ceramics such as ceramics, earthenware, glass, and amber. Examples include those made of ceramic-based materials.

As the fibrous base material used as the base material 11, for example, paper base materials such as thin paper, kraft paper, titanium paper, linter paper, paperboard, and base paper for gypsum board can be used. These paper substrates are used to increase the interfiber strength between the fibers of the paper substrate or between other layers and the paper substrate, to prevent fluffing, and to further prevent acrylic resin, styrene-butadiene rubber, and melamine resin. It may be one to which a resin such as urethane resin is added (impregnated with resin after making or internally filled at the time of making). Examples of the paper base material to which the resin is added include inter-paper reinforced paper and resin-impregnated paper.
Further, examples of the fibrous base material used as the base material 11 include vinyl wallpaper raw fabric in which a vinyl chloride resin layer is provided on the surface of a paper base material often used in the field of building materials.
Further, as the fibrous base material used as the base material 11, coated paper, art paper, sulfate paper, glassine paper, parchment paper, paraffin paper, Japanese paper and the like used in the office field or ordinary printing and packaging are used. Can be mentioned.
Further, examples of the fibrous base material used as the base material 11 include woven fabrics and non-woven fabrics of various fibers having a paper-like appearance and properties, although they are distinguished from the above-mentioned paper base materials. Examples of various fibers include protein-based or cellulose-based natural fibers such as silk, cotton and hemp, glass fibers, asbestos fibers, potassium titanate fibers, alumina fibers, silica fibers and inorganic fibers such as carbon fibers. Examples of various fibers include synthetic resin fibers such as polyester fibers, acrylic fibers and vinylon fibers.

Examples of the wood-based base material used as the base material 11 include veneer, plywood, laminated wood, particle board, and medium density fiber of various woods such as cedar, cypress, pine, zelkova, 楢, oak, lauan, and teak. A board (MDF) and the like can be mentioned.

The thickness of the base material 11 is not particularly limited, but is preferably 20 μm or more and 100 mm or less, more preferably 50 μm or more and 50 mm or less, and 100 μm or more, from the viewpoint of mechanical strength, handleability and economy. It is more preferably 30 mm or less.

The base material 11 is subjected to an oxidation method or an unevenness method on one or both sides thereof in order to improve the adhesion with other layers constituting the decorative material or to strengthen the adhesiveness with the adherend. Physical surface treatment such as, or surface treatment such as chemical surface treatment can be applied.
Examples of the oxidation method include corona discharge treatment, chromium oxidation treatment, flame treatment, hot air treatment, ozone-ultraviolet treatment method and the like, and examples of the unevenness method include sandblasting method and solvent treatment method. These surface treatments are appropriately selected depending on the type of the base material 11, but in general, the corona discharge treatment method is preferably used from the viewpoint of the effect and operability of the surface treatment.
Further, a primer layer may be further provided on the surface of the base material 11 in order to improve the interlayer adhesion between the base material 11 and other layers, strengthen the adhesiveness with the adherend, and the like. ..

<Pattern forming layer>
The pattern forming layer 12 is a layer provided for enhancing the design and decorativeness of the decorative board of the present embodiment. As the pattern formed by the pattern forming layer 12, at least a part of the region has a plurality of convex portions (13, 14) having a thickness T (T ₁ , T ₂ , ...) That can be visually recognized, whereby unevenness is formed. The shape is visually recognizable. For example, the so-called floating wood board with the autumn wood part of the annual ring raised, the wood board with the conduit groove group, the wood grain pattern on the surface of the siding board with the joint groove, and the uneven structure of the stone board surface such as the open surface of the granite board. Stone pattern including stone pattern, cloth pattern including fiber or thread woven structure, leather pattern (also called leather grain pattern), tiled pattern including joint groove, brick pile pattern including joint groove, sand grain pattern, satin finish Patterns, so-called perennial uneven patterns (also called ray engraving patterns) in which concave and convex parts are arranged in parallel with each other in the extending direction, geometric patterns, characters, figures, regular patterns , There are abstract patterns, etc., and there are also patterns such as parquet, patchwork, etc. that combine these.

The pattern forming layer 12 has at least two types of convex portions having different thicknesses, and a plurality of convex portions of each are arranged. In this embodiment, the decorative material 10 has a first convex portion 13 and a second convex portion 14.

As can be seen from FIG. 1, the first convex portion 13 has a maximum thickness T ₁ to form a convex portion over a predetermined region, and the second convex portion 14 has a maximum thickness T ₂ and is predetermined. A convex portion is formed over the region of. In this embodiment, the first convex portion 13 and the second convex portion 14 are rectangular parallelepipeds, but the shapes of the first convex portion 13 and the second convex portion 14 are a plan view shape (a shape formed in the xy plane direction) and a thickness shape. There is no limitation on any of (the z-direction shape). These shapes may be any shape such as polygons such as triangles and quadrangles, circles, ellipses, other curves, and irregular shapes formed by straight lines and curves. Here, the thickness T ₁ means the thickness of the thickest portion of the first convex portion 13, and the thickness T ₂ means the thickness of the thickest portion of the second convex portion 14.

As described above, the pattern forming layer 12 has at least two types of convex portions having different thicknesses, that is, a first convex portion 13 and a second convex portion 14. The thickness T ₁ of the first convex portion 13 is thicker than the thickness T ₂ of the second convex portion 14, that is, T ₁ > T ₂ . By having the first convex portion 13 and the second convex portion 14 having different thicknesses from each other, the visual effect and the tactile sensation at each portion are different, and more complicated and advanced design can be obtained. Here, the difference T ₁ -T ₂ between the thickness T ₁ of the first convex portion 13 and the thickness T ₂ of the second convex portion 14 is set to a extent that can be substantially discriminated visually and tactilely. It is necessary, and it is preferable that T ₁ − T ₂ ≧ 15 μm. The thickness T ₁ is preferably 20 μm or more and 90 μm or less, more preferably 22 μm or more and 70 μm or less, and further preferably 25 μm or more and 50 μm or less, from the viewpoint of satisfactorily exhibiting the visual effect and tactile sensation of the pattern.

FIG. 2 is a view seen from the direction shown by II in FIG. 1 and shows a cross section of the decorative material 10 on the xz plane. In FIG. 2, hatching is not added to the cross section for the sake of clarity.
As can be seen from FIG. 2, the first convex portion 13 and the second convex portion 14 contain particles. The first convex portion 13 and the second convex portion 14 include at least one kind of particles having different average particle diameters. This enables a different tactile sensation and visual expression than before. In this embodiment, the first convex portion 13 contains the first particle 15 and the second particle 16, and the second convex portion 14 contains only the first particle 15. That is, in this embodiment, the first convex portion 13 and the second convex portion 14 are different depending on whether or not the second particle 16 is included.
For the average particle size of the particles, a laser diffraction type particle size distribution measuring device "SALD-2100-WJA1" manufactured by Shimadzu Corporation is used, and the powder to be measured is injected from the nozzle using compressed air. , It is the average of the measured values by the injection type dry measuring method which is dispersed in the air and measured.

Here, the average particle diameter is not particularly limited, but is preferably smaller than the thickness of the convex portion containing the particles. As a result, the particles are embedded in the convex portion and the particles form the skeleton of the convex portion, so that the thickness of the convex portion (T ₁ , T ₂ ) can be easily controlled. More specifically, the average particle diameter of the first particle 15 can be 5 μm to 20 μm, and the average particle diameter of the second particle 16 can be 20 μm to 100 μm. Usually, the convex portion having a large thickness (first convex portion 13 in this embodiment) includes particles having a large average particle diameter and particles having a small average particle diameter, and the convex portion having a small thickness (second convex portion in this embodiment). 14) includes only particles having a small average particle diameter.
The difference in the average particle diameter between the first particle 15 and the second particle 16 is not particularly limited, but is preferably 10 μm or more.

The material (parts other than the particles) constituting the first convex portion 13 and the second convex portion 14 may be at least one selected from a two-component curable resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curable resin. preferable.

Examples of the two-component curable resin include a two-component curable urethane resin containing a polyol compound as a main component and an isocyanate compound as a curing agent, a two-component curable epoxy resin, a two-component curable urethane-modified acrylic resin, and a two-component curable polyester resin. Can be mentioned.

Examples of the thermoplastic resin include acrylic resin, cellulose resin, urethane resin, vinyl chloride resin, polyester resin, polyolefin resin, polycarbonate, nylon, polystyrene and ABS resin.

Examples of the thermosetting resin include acrylic resin, urethane resin, phenol resin, urea melamine resin, epoxy resin, unsaturated polyester resin, silicone resin and the like. A curing agent is added to the thermosetting resin as needed.

The ionizing radiation curable resin is a composition containing a compound having an ionizing radiation curable functional group. Examples of the ionizing radiation curable functional group include an ethylenically unsaturated bond group such as a (meth) acryloyl group, a vinyl group and an allyl group, an epoxy group and an oxetanyl group.
As the ionizing radiation curable resin, a compound having an ethylenically unsaturated bond group is preferable. Further, from the viewpoint of suppressing damage to the resin layer in the process of manufacturing the decorative sheet, the ionized radiation curable resin is more preferably a compound having two or more ethylenically unsaturated bond groups, and above all, ethylenically unsaturated. Polyfunctional (meth) acrylate compounds having two or more binding groups are more preferred. As the polyfunctional (meth) acrylate compound, either a monomer or an oligomer can be used.
The ionizing radiation means an electromagnetic wave or a charged particle beam having an energy quantum capable of polymerizing or cross-linking a molecule, and usually, an ultraviolet ray (UV) or an electron beam (EB) is used. Electromagnetic waves such as X-rays and γ-rays, and charged particle beams such as α-rays and ion rays can also be used.

Among the polyfunctional (meth) acrylate compounds, the bifunctional (meth) acrylate monomers include ethylene glycol di (meth) acrylate, bisphenol A tetraethoxydiacrylate, bisphenol A tetrapropoxydiacrylate, and 1,6-hexane. Examples thereof include diol diacrylate.
Examples of the trifunctional or higher functional (meth) acrylate-based monomer include trimethylolpropane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate, and di. Examples thereof include pentaerythritol tetra (meth) acrylate and isocyanuric acid-modified tri (meth) acrylate.
Further, the (meth) acrylate-based monomer may be one in which a part of the molecular skeleton is modified, and is modified with ethylene oxide, propylene oxide, caprolactone, isocyanuric acid, alkyl, cyclic alkyl, aromatic, bisphenol and the like. Can also be used.

Examples of the polyfunctional (meth) acrylate-based oligomer include acrylate-based polymers such as urethane (meth) acrylate, epoxy (meth) acrylate, polyester (meth) acrylate, and polyether (meth) acrylate.
Urethane (meth) acrylates are obtained, for example, by reacting polyhydric alcohols and organic diisocyanates with hydroxy (meth) acrylates.
Further, the preferable epoxy (meth) acrylate is a (meth) acrylate obtained by reacting a (meth) acrylic acid with a trifunctional or higher functional aromatic epoxy resin, an alicyclic epoxy resin, an aliphatic epoxy resin and the like, and a bifunctional one. (Meta) acrylate obtained by reacting the above aromatic epoxy resin, alicyclic epoxy resin, aliphatic epoxy resin, etc. with polybasic acid and (meth) acrylic acid, and bifunctional or higher functional aromatic epoxy resin, It is a (meth) acrylate obtained by reacting an alicyclic epoxy resin, an aliphatic epoxy resin or the like with phenols and (meth) acrylic acid.
The ionizing radiation curable resin may be used alone or in combination of two or more.

When the ionizing radiation curable resin is an ultraviolet curable resin, the composition preferably contains additives such as a photopolymerization initiator and a photopolymerization accelerator.
Examples of the photopolymerization initiator include acetophenone, benzophenone, α-hydroxyalkylphenone, Michlerketone, benzoin, benzyldimethylketal, benzoylbenzoate, α-acyloxime ester, and thioxanthones in the case of a compound having an ethylenically unsaturated group. One or more selected from the above can be mentioned.
The photopolymerization accelerator can reduce the polymerization inhibition by air at the time of curing and accelerate the curing rate. Examples of the photopolymerization accelerator include one or more selected from p-dimethylaminobenzoic acid isoamyl ester, p-dimethylaminobenzoic acid ethyl ester and the like.

These may be transparent, but may be colored as needed. In the case of coloring, a coloring agent (pigment or dye) can be added to the composition for coloring. As the colorant, known or commercially available pigments or dyes can be appropriately used. As the colorant, one kind may be used alone, or two or more kinds may be used in combination. In addition, the amount of the colorant added can be appropriately set according to the desired color and the like.

In addition, these compositions include fillers, matting agents, foaming agents, flame retardants, lubricants, antistatic agents, antioxidants, UV absorbers, light stabilizers, radical scavengers, and soft components as needed. For example, various additives such as rubber) may be contained.

The blending amount of the particles (first particles, second particles) in these compositions shall be 5 parts by mass or more and 60 parts by mass or less with respect to 100 parts by mass of the composition from the viewpoint of imparting a tactile sensation. It is more preferably 5 parts by mass or more and 50 parts by mass or less, and further preferably 10 parts by mass or more and 40 parts by mass or less.
The particles are made of a resin such as an acrylic resin, a urethane resin, a silicone resin and a polyamide resin such as nylon, or an inorganic material such as silica, alumina, zirconia, titania (titanium dioxide), kaolinite, calcium carbonate and barium sulfate. Beads can be mentioned. As the particles, the above-mentioned one kind may be used alone, or two or more kinds may be used in combination.

The plurality of first convex portions 13 and second convex portions 14 configured as described above are arranged corresponding to the required pattern. When the pattern of the decorative material is a wood grain pattern having an annual ring portion, the autumn lumber (late material) portion in the annual ring portion is arranged by arranging a plurality of first convex portions 13 as a form for satisfactorily reproducing the design appearance and tactile sensation of the wood grain pattern. , And the arrangement of the plurality of second convex portions 14 makes it possible to form a spring lumber (early lumber) portion in the annual ring portion.
Further, as another form for satisfactorily reproducing the design appearance and tactile sensation of the wood grain pattern, in the wood grain pattern in which the decorative material pattern has knot holes, the knot holes are formed by arranging the plurality of first convex portions 13, and a plurality of second ones are formed. By arranging the convex portion 14, a portion other than the knot hole in the wood grain pattern, for example, a spring lumber (early lumber) portion can be formed.
With such a configuration, the wood grain decorative material can obtain a visual effect and a tactile effect close to those of real wood.

<Other configurations>
(Pattern pattern layer)
The decorative material of the present disclosure may further include a pattern pattern layer (not shown) between the base material 11 and the pattern forming layer 12. The pattern layer can impart designability to the decorative material. The patterns formed by the pattern layer include wood grain pattern, stone grain pattern (open surface of granite, etc.), cloth pattern, leather pattern, tiled pattern (including joint groove), and brickwork pattern (including joint groove). , Sand grain pattern, satin pattern, ray carving pattern, geometric pattern, character, figure, regular pattern, abstract pattern, etc., and there are also patterns such as parquet, patchwork, etc. that combine these. These patterns are formed by multicolor printing with normal process colors such as yellow, red, blue and black, and also by multicolor printing with special colors prepared by preparing plates of the individual colors that make up the pattern. Will be done.

The pattern layer is formed by appropriately arranging colorants such as pigments and dyes so that a desired design can be obtained. The pattern layer is formed by a printing method such as offset printing, flexographic printing, gravure printing, screen printing, spray printing and inkjet printing, and a transfer method for transferring a printed pattern. The pattern pattern layer may be a single layer, but may be formed from two or more layers.

As the ink used for forming the pattern layer, an ink obtained by appropriately mixing a binder resin with a colorant such as a pigment or a dye, an extender pigment, a solvent, a stabilizer, a plasticizer, a catalyst, a curing agent or the like is used.
The binder resin is not particularly limited, and is, for example, acrylic resin, styrene resin, polyester resin, urethane resin, chlorinated polyolefin resin, vinyl chloride-vinyl acetate copolymer resin, polyvinyl butyral resin, alkyd resin. Examples thereof include resins, petroleum resins, ketone resins, epoxy resins, melamine resins, fluororesins, silicone resins, fibrous derivatives, rubber resins and the like. These resins can be used alone or in admixture of two or more.
The colorant is not particularly limited, and for example, carbon black (black), iron black, titanium white, antimony white, yellow lead, titanium yellow, petal pattern, cadmium red, ultramarine, cobalt blue and other inorganic pigments, quinacridone red. , Isoindolinon yellow, nickel azo complex, phthalocyanine blue, azomethine azo black and other organic pigments or dyes, aluminum, brass and other scaly foil pieces, metal pigments, titanium dioxide-coated mica, basic lead carbonate and other scaly foils. A pearl luster (pearl) pigment consisting of pieces is used.
Additives such as an antioxidant, an ultraviolet absorber, and a light stabilizer may be contained in the pattern layer.

The thickness of the pattern layer is preferably 0.1 μm or more and 40 μm or less, more preferably 0.3 μm or more and 20 μm or less, and further preferably 0.5 μm or more and 10 μm or less, from the viewpoint of satisfactorily exhibiting the design of the pattern.

(Matte layer)
The decorative material of the present disclosure may further include a matte layer (not shown) in the pattern forming layer 12. The matte layer can generate a gloss difference from the surrounding area to develop a visual unevenness.
The matte layer may be provided on the entire surface of the pattern forming layer 12, but in consideration of generating a gloss difference from the surrounding area and expressing a visual unevenness, the matte layer is directly above the convex portion. And, it is preferable to provide it in the vicinity, and it is more preferable to provide it in a limited manner immediately above the convex portion.

The matte layer preferably contains a matting agent from the viewpoint of improving the matting effect.
Examples of the matting agent include inorganic fine particles and organic fine particles. Examples of the inorganic fine particles include particles made of silica, alumina, aluminosilicate, kaolinite, calcium carbonate, barium sulfate, glass and the like.
Examples of the organic fine particles include particles made of acrylic resin, polycarbonate resin, urethane resin, urea resin, benzoguanamine resin, benzoguanamine-melamine-formaldehyde condensate and the like.
As the matting agent, silica particles are suitable from the viewpoint that the matting effect is high and the gloss can be easily controlled. Further, as the matting agent, the above-mentioned one type may be used alone, or two or more types may be used in combination.
The particle size of the matting agent is preferably 1 μm or more and 10 μm or less, more preferably 2 μm or more and 9 μm or less, and further preferably 3 μm or more and 7 μm or less, from the viewpoint of matting effect and gloss control. ..

(Backing base material)
It is preferable that the decorative material further includes a backing base material (not shown) on the side opposite to the surface of the base material 11 on which the pattern forming layer 12 is provided. The lining base material is provided as necessary to reinforce the decorative material, impart adhesiveness to the adherend, and impart concealment.

As the lining base material, a resin sheet, paper, a non-woven fabric, a woven fabric, a metal foil, or the like can be used. Among these, as the resin sheet, a sheet made of acrylic resin, polyester resin, polyolefin resin, polyvinyl chloride resin, ABS resin or the like can be used.

The thickness of the lining base material is preferably 0.05 mm or more and 0.15 mm or less, more preferably 0.06 mm or more and 0.13 mm or less, and 0.08 mm or more and 0, from the viewpoint of improving reinforcing properties, adhesiveness and concealing properties. .12 mm or less is more preferable.

(Adhesive layer)
The decorative material preferably has an adhesive layer (not shown) provided between at least one of the base material 11, the pattern forming layer 12, the pattern pattern layer, the matte layer, and the backing base material. The adhesive layer has a function of assisting the joining of each layer of the base material 11, the pattern forming layer 12, the pattern pattern layer, the matte layer, and the backing base material, and can strengthen the joining of each layer.
The adhesive layer is preferably at least one selected from a two-component curable resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curable resin.

(Primer layer)
The decorative material preferably has a primer layer (not shown) provided between at least one of the base material 11, the pattern forming layer 12, the pattern pattern layer, the matte layer, and the backing base material. The primer layer has a function of assisting the joining of each layer of the base material 1, the pattern forming layer 12, the pattern pattern layer, the matte layer, and the backing base material, and can strengthen the joining of each layer.
As the primer layer, a resin that improves the adhesion between the two layers facing each other with the primer layer interposed therebetween may be appropriately selected, and there is no particular limitation.

According to the decorative material according to the embodiment of the present disclosure, it is possible to provide a decorative material having a complicated and highly designable property by visual effect and tactile sensation.

Next, the present invention will be described in more detail by way of examples, but the present invention is not limited to this example.

As an example, a decorative material was produced following the decorative material 10. Specifically, the first convex portion of T ₁ = 55 μm and the second convex portion of T ₂ = 15 μm are used, and the first convex portion includes particles having an average particle diameter of 50 μm and particles having an average particle diameter of 12 μm. Only particles having an average particle diameter of 12 μm were included in the convex portion.
Here, the base material is a paper having a thickness of 45 g / m ² (a wood grain pattern is gravure-printed on the surface), and the convex portion is a composition containing particles of an acrylic resin having the above average particle size in an acrylic polyol resin. Using. The composition contains 14 parts by mass of 12 μm particles and 19 parts by mass of 50 μm particles with respect to 100 parts by mass of the acrylic polyol resin.
Further, the area ratio (ratio occupied in a plan view) between the first convex portion and the second convex portion is 3: 7, the width (size in the x direction) is 280 μm, and the distance between adjacent convex portions is 20 μm. The one-convex part and the second convex part were arranged so as to form a pattern on the surface of the wood grain.

On the other hand, as a comparative example, a decorative material having a convex portion having a thickness of only 55 μm and containing particles having an average particle diameter of only 50 μm was prepared, and the other decorative materials were prepared in the same manner as in the examples.

The surface of the decorative material produced in Examples and Comparative Examples was checked for design by an uneven pattern. Twenty subjects evaluated and calculated the average score, with 2 points for those who felt the design was fairly high, 1 point for those who felt the design, and 0 points for those who felt almost no design.
A: Average score of 1.5 or more B: Average score of 1.0 or more and less than 1.5 C: Average score of less than 1.0

A finger touch check was performed on the surface of the decorative material produced in Examples and Comparative Examples. Twenty subjects evaluated and calculated the average score, with 2 points for those who felt considerable unevenness, 1 point for those who felt unevenness, and 0 points for those who felt almost no unevenness.
A: Average score of 1.5 or more B: Average score of 1.0 or more and less than 1.5 C: Average score of less than 1.0

As a result of the evaluation, the cosmetic material of the example was highly evaluated as the cosmetic material of the comparative example in terms of both the design and the touch check.

10 Decorative material 11 Base material 12 Pattern forming layer 13 First convex part 14 Second convex part 15 First particle 16 Second particle

Claims (1)

A substrate and a pattern forming layer in which a plurality of protrusions containing particles are arranged on one surface side of the substrate are provided.
The plurality of convex portions include at least two types of convex portions having different thicknesses.
In the two types of convex portions, a decorative material having particles having an average particle diameter contained in one of the convex portions and not included in the other convex portion.

Images