JP2023036666A - Float-tone wood decorative material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a float-tone wood decorative material having a design similar to that of real wood through a visual effect and a tactile sense, short in manufacture time of delivery, and inexpensive.

SOLUTION: This float-tone wood decorative material comprises: a base material 1; a first projected part 2 provided on one surface side of the base material 1; a slope 10 provided at a position different from that of the first projected part 2 on one surface side of the base material 1; and a second projected part 3 provided on one surface side of the base material 1 at at least one of a position different from that of the first projected part 2 and a position on the slope 10. The height Ha of the first projected part 2 is equal to or greater than the height Hc of the top of the slope 10 in the thickness direction of the base material 1, and the height Ha of the first projected part 2 is greater than the height Hb of the second projected part 3 in the thickness direction of the base material 1.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a decorative material, and more particularly to a decorative wood grain material with an embossed texture.

Processed products of natural wood are widely used for building materials and furniture. However, good-quality natural wood resources are limited, and in order not to deplete them, decorative materials are sometimes used to impart a wood grain design to the surfaces of building materials, furniture, and the like. In order to obtain a visual effect close to that of real wood, the wood grain decorative material has annual rings formed by spring wood (early wood) and autumn wood (late wood). As a wood grain decorative material, there has been proposed one in which the spring wood portion is expressed by gravure printing and the autumn wood portion is expressed by gravure printing, intaglio printing, or silk screen printing (see, for example, Patent Document 1).

However, the wood grain decorative material proposed in Patent Document 1 has insufficient visual effects, and particularly insufficient tactile sensation, so it is difficult to say that it has a design close to that of real wood. rice field.
Therefore, the spring wood part is printed on the resin base material by gravure printing, and the embossed plate made by electroforming, etc., is modeled from the surface of the natural wood embossed board, and the wood grain that mainly shapes the convex part of the autumn wood part. Tone decorative materials have been proposed (see Patent Document 2, for example).

Japanese Patent Publication No. 49-25323 JP-A-5-4310

The embossed embossed wood-grain decorative material made by electroforming or the like is faithful to the actual product, and has a design that is close to that of real wood. However, the production of embossed plates by electroforming or the like takes a long delivery time and is expensive, so there is a problem that the production delivery time of the decorative material is long and the cost is high.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a embossed wood grain decorative material that has a design close to that of real wood in terms of visual effects and tactile sensations, has a short production lead time, and is inexpensive.

In order to solve the above problems, the present inventors have made intensive studies and found that the above problems can be solved by providing specific convex portions and inclined portions on one side of the base material. That is, the present invention provides the following [1] to [17].
[1] A substrate, a first convex portion provided on one surface side of the substrate, and a position different from the first convex portion in plan view on one surface side of the substrate and a second convex portion provided on one surface side of the base material at a position different from the first convex portion and at least one of the inclined portion, wherein the first convex The height of the convex portion is equal to or higher than the height of the top portion of the inclined portion in the thickness direction of the substrate, and the height of the first convex portion is the thickness of the substrate. A embossed wood grain decorative material that is higher in the direction than the height of the second convex portion.
[2] The embossed wood grain decorative material according to [1], wherein the inclined portion has an inclination angle of 3 degrees or more and 70 degrees or less with respect to the substrate surface on which the inclined portion is provided.
[3] The embossed wood grain decorative material according to [1] or [2], wherein the inclined portion extends from one adjacent first convex portion to the other adjacent first convex portion.
[4] The embossed wood grain decorative material according to any one of [1] to [3], wherein the height of the first convex portion is 0.050 mm or more and 0.500 mm or less from the surface of the base material.
[5] The embossed wood grain of any one of [1] to [4], wherein the width of the first convex portion is 0.20 mm or more and 5.00 mm or less in a direction perpendicular to the length direction of the base material. cosmetic material.
[6] The embossing pattern according to any one of [1] to [5], wherein the distance between the first convex portions in the direction perpendicular to the length direction of the base is 0.20 mm or more and 30.00 mm or less. Wood grain veneer.
[7] The embossed wood grain decorative material according to any one of [1] to [6], wherein the ends of the first convex portions are present only at the edges of the base material.
[8] The embossed wood grain decoration according to any one of [1] to [7], wherein the length of the first convex portion is longer than that of the second convex portion in the length direction of the base material. material.
[9] The embossed wood grain decorative material according to any one of [1] to [8], wherein the length of the second convex portion is 0.30 mm or more and 300.00 mm or less in the length direction of the base material.
[10] The embossed wood grain decoration according to any one of [1] to [9], wherein the height of the second convex portion is 0.02 mm or more and 0.10 mm or less from the base surface or the inclined portion surface. material.
[11] The embossed wood grain of any one of [1] to [10], wherein the width of the second convex portion is 0.06 mm or more and 0.90 mm or less in a direction perpendicular to the length direction of the base material. cosmetic material.
[12] Any one of [1] to [11], wherein the ratio of the second convex portions to the ratio of the first convex portions on the base material surface is 0.50 or more and 4.00 or less. embossed wood grain veneer.
[13] Any one of [1] to [12], wherein the ratio of the second convex portions to the remainder of the first convex portions on the substrate surface is 0.10 or more and 3.00 or less. embossed wood grain veneer.
[14] The embossed wood grain decorative material according to any one of [1] to [13], wherein the ends of the second convex portions in the length direction of the base material are narrowed and rounded.
[15] The embossed wood grain decorative material according to any one of [1] to [14], wherein the second convex portions are arranged in series at intervals in the length direction of the base material.
[16] The floating wood grain decorative material according to any one of [1] to [15], further comprising a pattern layer on at least one side of the base material.
[17] The method of [1] to [16], further comprising a backing substrate on the side opposite to the surface on which the first convex portion, the second convex portion and the inclined portion of the substrate are provided. Any embossed wood grain veneer.

According to the present invention, it is possible to provide a floating wood grain decorative material that has a design close to that of real wood in terms of visual appearance effect and tactile feel, and that has a short production lead time and is inexpensive.

FIG. 1(a) is a schematic perspective view of the embossed wood grain decorative material according to the embodiment of the present invention, and FIG. 1(b) is a schematic diagram of the embossed wood grain decorative material according to the embodiment of the present invention. FIG. 1(c) is a schematic plan view of a embossed wood grain decorative material according to an embodiment of the present invention. FIG. 2(a) is a diagram showing the shape of the first convex portion when the embossed wood grain decorative material according to the embodiment of the present invention has a straight grain, and FIG. FIG. 10 is a diagram showing the shape of the first convex portion when the embossed wood grain decorative material according to the embodiment of 1 is a flat grain; FIG. 5 is a schematic diagram showing the tip shape of the second convex portion of the embossed wood grain decorative material according to the embodiment of the present invention. FIG. 5 is a schematic diagram showing the arrangement of the second convex portions of the embossed wood grain decorative material according to the embodiment of the present invention; FIG. 2 is a schematic cross-sectional view showing the arrangement of pattern layers when the relief-like wood grain decorative material according to the embodiment of the present invention includes pattern layers. FIG. 2 is a schematic cross-sectional view showing the arrangement of the backing base material when the embossed wood grain decorative material according to the embodiment of the present invention is provided with the backing base material.

Embodiments of the present invention will be described below with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, 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. Therefore, specific thicknesses and dimensions should be determined by referring to the following description. In addition, it goes without saying that there are portions with different dimensional relationships and ratios between the drawings.

(Embodiment)
[Embossed wood grain decorative material]
As shown in FIG. 1, the embossed wood grain decorative material according to the embodiment of the present invention includes a substrate 1 and one surface side of the substrate 1 (in FIG. 1, above the floated wood grain decorative material, that is, +Z The first convex portion 2 provided on the surface of the direction side) and the first convex portion 2 provided on one surface side of the base material 1 in a plan view (the appearance when viewed in the −Z direction from the +Z direction side in FIG. 1). 1 inclined portion 10 provided at a position different from that of the convex portion 2; and a convex portion 3 . The height Ha of the first convex portion 2 is equal to or higher than the height Hc of the top portion of the inclined portion 10 in the thickness direction of the base material 1 (the Z direction shown in FIG. 1). and The height Ha of the first convex portion 2 is characterized in that it is higher than the height Hb of the second convex portion 3 in the thickness direction of the substrate 1 (the Z direction shown in FIG. 1).
There are no particular limitations on the floating wood grain decorative material, but examples of wood for which the design is to be reproduced include cedar, cypress, walnut, pine, cherry, and the like.

<Base material>
The form of the base material 1 may be any of a sheet, a film, a plate, and the like.
The substrate 1 is not particularly limited as long as it is usually used as a decorative material, and resin substrates, metal substrates, ceramic substrates, fiber substrates, wood substrates, etc., can be used depending on the application. It can be selected as appropriate. Each of the substrates described above may be used alone, or may be a laminate of any combination such as a composite of a resin substrate and a metal substrate. When the substrate 1 is a laminate, it may be configured such that a primer layer (not shown) is further provided between each layer of the laminate.

Examples of the resin base material used as the base material 1 include those made of various synthetic resins. Synthetic resins include polyethylene, polypropylene, polymethylpentene, ionomer, olefin resins such as olefinic thermoplastic elastomers, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer. Polymer, vinyl resin such as ethylene-vinyl alcohol copolymer, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, ethylene glycol-terephthalic acid-isophthalic acid copolymer, polyester resin such as polyester thermoplastic elastomer, polymethacrylic polyester resins such as methyl acid, polyethyl methacrylate and polybutyl acrylate; polyamide resins such as nylon 6 or nylon 66; cellulose resins such as cellulose triacetate and cellophane; polystyrene, polycarbonate resins, polyarylate resins and polyimides A film, sheet, or plate made of resin or the like can be used.

Examples of metal substrates used as the substrate 1 include foils or plates made of aluminum or aluminum alloys such as duralumin, iron or carbon steel, iron alloys such as stainless steel, titanium, or copper. Moreover, as the base material 1, those obtained by laminating these metals on a base material of other material such as resin by vapor deposition, plating, or the like can also be used.

Examples of the ceramic base material used as the base material 1 include ceramic inorganic materials such as gypsum, calcium silicate, cement, and wood cement, and plates made of ceramics, glass, enamel, baked tiles, and the like.

As the fibrous base material used as the base material 1, 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. In order to increase the interlayer strength between the fibers of the paper base material or between other layers and the paper base material, and to prevent fluffing, these paper base materials are further added with acrylic resin, styrene-butadiene rubber, melamine resin, urethane resin, etc. resin (impregnated with resin after paper making, or filled during paper making). Examples of resin-added paper substrates include inter-paper reinforced paper and resin-impregnated paper.
Further, examples of the fibrous base material used as the base material 1 include a vinyl wallpaper raw roll obtained by providing a vinyl chloride resin layer on the surface of a paper base material that is often used in the field of building materials.
In addition, as the fibrous base material used as the base material 1, coated paper, art paper, sulfuric acid paper, glassine paper, parchment paper, paraffin paper, Japanese paper, etc., which are used in the office field or ordinary printing and packaging, etc. mentioned.
As the fibrous base material used as the base material 1, woven fabrics and non-woven fabrics of various fibers having an appearance and properties similar to paper can also be mentioned, although they are distinguished from the paper base materials described above. Examples of various fibers include inorganic fibers such as glass fiber, asbestos fiber, potassium titanate fiber, alumina fiber, silica fiber and carbon fiber. 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 1 include veneers, plywood, laminated lumber, particle boards, and medium-density fiberboards ( MDF) and the like.

The thickness of the substrate 1 is not particularly limited, but is preferably 0.02 mm or more and 20.00 mm or less, and 0.03 mm or more and 5.00 mm or less from the viewpoint of mechanical strength, handleability and economy. 0.04 mm or more and 0.10 mm or less is more preferable.

<<resin layer>>
If the substrate 1 is a material that makes it difficult to provide the uneven shapes of the first convex portion 2 and the second convex portion 3 and the inclined shape of the inclined portion 10, the first convex portion 2 and the second convex portion From the viewpoint of facilitating the provision of the shaped portion 3 and the inclined portion 10, it is preferable to have a structure in which a resin layer (not shown) is provided on the surface. The resin layer is preferably at least one selected from two-component curable resins, thermoplastic resins, thermosetting resins and ionizing radiation curable resins.

The two-component curing resin includes a two-component curing type polyurethane resin, a two-component curing type epoxy resin, a two-component curing type urethane-modified acrylic resin and a two-component curing type polyester resin using isocyanate as a curing agent.

Examples of thermoplastic resins include acrylic resins, cellulose resins, urethane resins, vinyl chloride, polyester resins, olefin resins, polycarbonates, nylons, polystyrenes and ABS resins.

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

An ionizing radiation-curable resin is a composition containing a compound having ionizing radiation-curable functional groups. Examples of ionizing radiation-curable functional groups include ethylenically unsaturated bond groups such as (meth)acryloyl groups, vinyl groups, and allyl groups, epoxy groups, and oxetanyl groups.
A compound having an ethylenically unsaturated bond group is preferable as the ionizing radiation-curable resin. In addition, from the viewpoint of suppressing damage to the resin layer during the process of manufacturing the decorative sheet, the ionizing radiation curable resin is more preferably a compound having two or more ethylenically unsaturated bond groups. Polyfunctional (meth)acrylate compounds having two or more bonding groups are more preferred. Both monomers and oligomers can be used as polyfunctional (meth)acrylate compounds.
Ionizing radiation means an electromagnetic wave or a charged particle beam that has energy quanta capable of polymerizing or cross-linking molecules, and usually ultraviolet (UV) or electron beam (EB) is used. Electromagnetic waves such as X-rays and γ-rays, and charged particle beams such as α-rays and ion beams can also be used.

Among polyfunctional (meth)acrylate compounds, bifunctional (meth)acrylate monomers include ethylene glycol di(meth)acrylate, bisphenol A tetraethoxy diacrylate, bisphenol A tetrapropoxy diacrylate, 1,6-hexane. diol diacrylate and the like.
Trifunctional or higher (meth)acrylate monomers include, for example, trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol hexa(meth)acrylate, di Examples include pentaerythritol tetra(meth)acrylate and isocyanuric acid-modified tri(meth)acrylate.
Further, the (meth)acrylate-based monomer may have a partially modified molecular skeleton, and may be modified with ethylene oxide, propylene oxide, caprolactone, isocyanuric acid, alkyl, cyclic alkyl, aromatic, bisphenol, or the like. can also be used.

Examples of polyfunctional (meth)acrylate oligomers include acrylate 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.
Preferred epoxy (meth)acrylates are (meth)acrylates obtained by reacting tri- or more functional aromatic epoxy resins, alicyclic epoxy resins, aliphatic epoxy resins, etc. with (meth)acrylic acid, bifunctional (Meth)acrylates obtained by reacting the above aromatic epoxy resins, alicyclic epoxy resins, aliphatic epoxy resins, etc. with polybasic acid and (meth)acrylic acid, and bifunctional or higher aromatic epoxy resins, It is a (meth)acrylate obtained by reacting an alicyclic epoxy resin, an aliphatic epoxy resin, or the like with a phenol and (meth)acrylic acid.
The ionizing radiation curable resins may be used singly or in combination of two or more.

When the ionizing radiation-curable resin is an ultraviolet-curable resin, the resin layer-forming composition preferably contains additives such as a photopolymerization initiator and a photopolymerization accelerator.
Examples of the photopolymerization initiator include one or more selected from acetophenone, benzophenone, α-hydroxyalkylphenone, Michler's ketone, benzoin, benzyldimethylketal, benzoylbenzoate, α-acyloxime ester, thioxanthones, and the like.
The photopolymerization accelerator can reduce polymerization inhibition caused by air during curing and increase the curing speed. Examples of the photopolymerization accelerator include one or more selected from p-dimethylaminobenzoic acid isoamyl ester, p-dimethylaminobenzoic acid ethyl ester, and the like.

From the viewpoint of providing the first convex portion 2, the second convex portion 3, and the inclined portion 10, the thickness of the resin layer is preferably equal to or greater than the height of the first convex portion 2. The thickness of the resin layer is preferably 0.5 μm or more, more preferably 0.8 μm or more, and even more preferably 1.0 μm or more than the height of the first convex portion 2 .

A first convex portion 2 , a second convex portion 3 and an inclined portion 10 are provided on the surface of the base material 1 .
The first convex portion 2 and the second convex portion 3 represent the autumn wood (late wood) portion and the spring wood (early wood) portion, respectively, and form annual rings of wood grain. Since the first convex portion 2 and the second convex portion 3 have a design close to that of real wood, it is preferable that the edges constituting them are not straight.
The slope portion 10 can represent a fall wood portion or a spring wood portion having different gradients on both sides of the autumn wood portion in a cross-grain lumber having an irregularly curved shape with wide intervals between annual rings. As shown in FIG. 1B, one side of the first convex portion 2 where the inclined portion 10 exists expresses the autumn or spring wood portion with a gentle slope, and the first convex portion 2 where the inclined portion 10 does not exist is shown. It is possible to change the expression of the steep fall wood portion or spring wood portion on the other side of the convex portion 2 .

<Incline>
The inclination angle θ of the inclined portion 10 is an angle based on the surface of the substrate 1 on which the inclined portion 10 is provided, as shown in FIG. 1(b). The inclination angle θ of the inclined portion 10 is preferably 3 degrees or more and 70 degrees or less from the viewpoint of expressing the gentle slope of the autumn wood (late wood) or spring wood (early wood) and increasing the visual effect. It is preferably 5 degrees or more and 65 degrees or less, and further preferably 10 degrees or more and 60 degrees or less.
The inclination angle θ of the inclined portion 10 was obtained by measuring the inclination angles θ of ten inclined portions 10 present at arbitrary locations in a cross-sectional photograph including the inclined portion 10 using a 3D shape measuring instrument. It can be measured by averaging the values of each measurement result.

When the inclined portion 10 corresponds to the appearance of the gentle slope region of the spring material portion of the embossed wood grain board, as shown in FIGS. It is preferable to extend to the other adjacent first convex portion 2 . In addition, as shown in FIGS. 1A and 1B, the second convex portion 3 is arranged so as to protrude from the surface of the inclined portion 10 . By having the inclined portion 10 having such a shape, it is possible to express a spring material portion with a gentle slope and increase the visual effect.
Further, when the inclined portion 10 corresponds to the appearance of the gentle slope region of the autumn wood portion of the embossed wood grain board, although illustration is omitted, from the adjacent first convex portion 2 to the other adjacent first convex portion The second convex portion 3 is localized in the vicinity of the first convex portion 2 without extending to the shape portion 2, and the slope between the inclined portion 10 and the adjacent first convex portion 2 is flat. be placed so that it protrudes. Since the inclined portion 10 has such a shape, it is possible to express the autumn wood portion with a gentle slope and increase the visual effect.

<First convex portion>
The height Ha of the first convex portion 2 is the height from the surface of the substrate 1 to the top of the first convex portion 2, as shown in FIG. 1(b). The height Ha of the first convex portion 2 is not particularly limited, but is preferably 0.050 mm or more and 0.500 mm or less from the base material surface from the viewpoint of increasing the visual effect and tactile sensation, and is 0.080 mm or more. It is more preferably 0.400 mm or less, and further preferably 0.100 mm or more and 0.300 mm or less.
Note that the height Ha of the first convex portion 2 is obtained by measuring the height Ha of the first convex portion 2 at 30 locations at arbitrary locations on the surface of the base material 1 using a 3D shape measuring instrument. , can be measured by averaging the values of each measurement result obtained.

The width of the first convex portion 2 is the width of each of the first convex portions 2 in the direction (X direction shown in FIG. 1) orthogonal to the length direction (Y direction shown in FIG. 1) of the substrate 1. . The width of the first convex portion 2 is not particularly limited, but is preferably 0.20 mm or more and 5.00 mm or less, and 0.30 mm or more and 4.00 mm or less, from the viewpoint of increasing the visual effect and tactile sensation. is more preferably 0.50 mm or more and 3.00 mm or less.
The width of the first convex portion 2 is obtained by measuring the width of the first convex portion 2 at 30 locations on the surface of the substrate 1 using a 3D shape measuring instrument or a microscope. It can be measured by averaging the values of each measurement result obtained.

The distance between the first convex portions 2 in the direction (X direction shown in FIG. 1) perpendicular to the length direction of the substrate (Y direction shown in FIG. 1) is not particularly limited, but the visual effect and tactile sensation are increased. 0.20 mm or more and 30.00 mm or less, more preferably 0.30 mm or more and 25.00 mm or less, and even more preferably 0.50 mm or more and 5.00 mm or less.
The interval between the first convex portions 2 in the direction orthogonal to the length direction of the base material is measured using a 3D shape measuring instrument or a microscope. It can be measured by measuring the distance between the convex portions 2 in the direction orthogonal to the length direction of the base material and averaging the obtained measurement results.

It is preferable that the ends of the first convex portions 2 exist only at the edges of the substrate 1, as shown in FIG. When the embossed wood grain decorative material has a straight grain pattern, the ends of the first convex portions 2 are present only at the opposite edges of the substrate 1, as shown in FIG. 2(a). When the embossed wood grain decorative material has a flat grain pattern, the ends of the first convex portions 2 are present only at one of the edges of the base material 1, as shown in FIG. 2(b). .

<Second convex portion>
The length Lb of the second convex portion 3 is the individual length of the second convex portion 3 in the length direction of the base material 1 (the Y direction shown in FIG. 1), as shown in FIG. 1(c). be. The length Lb of the second convex portion 3 is not particularly limited, but from the viewpoint of increasing the visual effect, it is preferably 0.30 mm or more and 300.00 mm or less, and is 1.00 mm or more and 100.00 mm or less. is more preferably 2.00 mm or more and 30.00 mm or less.
The length of the second convex portions 3 is obtained by measuring the length of the second convex portions 3 at 30 locations on the surface of the substrate 1 using a 3D shape measuring instrument or a microscope. , can be measured by averaging the values of each measurement result obtained.

The height Hb of the second convex portion 3 is the height from the surface of the substrate 1 or the surface of the inclined portion 10 to the top of the second convex portion 3, as shown in FIG. 1(b). The height Hb of the second convex portion 3 is not particularly limited, but from the viewpoint of increasing the visual effect, it is preferably 0.02 mm or more and 0.10 mm or less, more preferably 0.03 mm or more and 0.10 mm or less from the substrate surface. It is more preferably 09 mm or less, and further preferably 0.04 mm or more and 0.08 mm or less.
The height Hb of the second convex portion 3 is obtained by measuring the height Hb of the second convex portions 3 at 30 locations on the surface of the substrate 1 using a 3D shape measuring instrument. , can be measured by averaging the values of each measurement result obtained.

The width of the second convex portion 3 is the width of each of the second convex portions 3 in the direction (X direction shown in FIG. 1) orthogonal to the length direction (Y direction shown in FIG. 1) of the substrate 1. . The width of the second convex portion 3 is not particularly limited, but from the viewpoint of increasing the visual effect, it is preferably 0.06 mm or more and 0.90 mm or less, and more preferably 0.08 mm or more and 0.80 mm or less. More preferably, it is 0.10 mm or more and 0.70 mm or less.
In addition, the width of the second convex portion 3 is obtained by measuring the width of the second convex portion 3 at 30 locations at arbitrary locations on the surface of the base material 1 using a 3D shape measuring instrument or a microscope. It can be measured by averaging the values of each measurement result obtained.

The ratio of the second convex portions 3 to the ratio of the first convex portions 2 on the surface of the substrate 1 is not particularly limited, but from the viewpoint of increasing the visual effect, it should be 0.50 or more and 4.00 or less. is preferred, more preferably 0.60 or more and 3.00 or less, and even more preferably 0.80 or more and 2.00 or less.
The ratio of the second convex portions 3 to the ratio of the first convex portions 2 on the surface of the substrate 1 is determined by measuring the first convex portions at 30 arbitrary locations on the surface of the substrate 1 using a 3D shape measuring instrument. It can be measured by calculating the ratio of the second convex portion 3 to the ratio of the portion 2 and averaging the obtained calculated values.

The ratio of the second convex portions 3 to the rest of the first convex portions 2 on the surface of the substrate 1 is not particularly limited, but from the viewpoint of increasing the visual effect, it should be 0.10 or more and 3.00 or less. is preferred, more preferably 0.20 or more and 2.00 or less, and even more preferably 0.30 or more and 1.00 or less.
The ratio of the second convex portions 3 to the remainder of the first convex portions 2 on the surface of the substrate 1 is determined by using a 3D shape measuring instrument to measure the first convex portions at 30 arbitrary locations on the surface of the substrate 1. It can be measured by calculating the ratio of the second convex portion 3 to the rest of the portion 2 and averaging the obtained calculated values.

The ends of the second convex portions 3 in the length direction of the base material 1 (the Y direction shown in FIG. 1) have a constricted and rounded shape, as indicated by the dotted circles in FIG. preferable. Since the end portion of the second convex portion 3 is tapered to have a rounded shape, it is possible to impart a design close to that of the spring wood (early wood) portion of real wood.

As shown in FIG. 4, the second convex portions 3 are preferably arranged in a row at intervals in the longitudinal direction of the substrate 1 (the Y direction shown in FIG. 1). By arranging the second convex portions 3 in a row at intervals, it is possible to impart a design close to that of the spring wood (early wood) of real wood.

<Pattern layer>
As shown in FIG. 5 , it is preferable that the embossed wood grain decorative material further includes a pattern layer 4 on at least one side of the substrate 1 . As shown in FIG. 5A, the pattern layer 4 can be provided on the opposite side of the surface of the substrate 1 on which the first convex portions 2 and the second convex portions 3 are provided. Moreover, the pattern layer 4 can be provided on at least one of the first convex portion 2 and the second convex portion 3, as shown in FIG. 5(b). Moreover, the pattern layer 4 can be provided on both surface sides of the base material 1, as shown in FIG.5(c).
The pattern layer 4 preferably has a wood grain pattern. Since the pattern layer 4 has a wood grain pattern, the embossed wood grain decorative material can have a wood grain pattern that closely resembles real wood.

The pattern layer 4 is formed by appropriately arranging pigments and/or dyes so as to obtain a desired design. The pattern layer 4 is formed by a printing method such as offset printing, flexographic printing, gravure printing, screen printing, spray printing, or inkjet printing, or a transfer method for transferring a printed pattern. The pattern layer 4 may be a single layer, or may be formed from two or more layers.

The ink used for forming the pattern layer 4 is obtained by appropriately mixing a binder resin with a coloring agent such as a pigment or a dye, an extender pigment, a solvent, a stabilizer, a plasticizer, a catalyst, a curing agent, and the like.
The binder resin is not particularly limited, and examples include acrylic resins, styrene resins, polyester resins, urethane resins, chlorinated polyolefin resins, vinyl chloride-vinyl acetate copolymer resins, polyvinyl butyral resins, and alkyd resins. Resins, petroleum-based resins, ketone resins, epoxy-based resins, melamine-based resins, fluorine-based resins, silicone-based resins, cellulose derivatives, rubber-based resins, and the like. These resins can be used alone or in combination of two or more.
The pattern layer 4 may contain additives such as an antioxidant and an ultraviolet absorber.

The thickness of the pattern layer 4 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 even more preferably 0.5 μm or more and 10 μm or less, from the viewpoint of exhibiting the design property of the pattern well.

When the embossed wood grain decorative material has a pattern layer 4, the base material 1 is transparent so that the color of the pattern layer 4 with pattern printing formed on at least one surface does not change due to the influence of the adherend. is preferably

<Backing base material>
As shown in FIG. 6, the embossed wood grain decorative material has a backing base material 5 on the opposite side of the base material 1 on which the first convex portion 2, the second convex portion 3 and the inclined portion 10 are provided. is preferably further provided. The backing base material 5 is provided as necessary in order to reinforce the embossed wood grain decorative material, provide adhesion to the adherend, and provide concealment.

As the backing base material 5, a resin sheet, paper, nonwoven fabric, woven fabric, metal foil, or the like can be used. As the resin sheet, for example, a sheet of acrylic resin, polyester resin, polyolefin resin, polyvinyl chloride resin, polycarbonate resin, epoxy resin, ABS resin, or the like can be used.

The thickness of the backing base material 5 is preferably 0.02 mm or more and 0.50 mm or less, more preferably 0.03 mm or more and 0.40 mm or less, and 0.04 mm or more, from the viewpoint of improving reinforcing properties, adhesion properties, and hiding properties. 0.30 mm or less is more preferable.

<Adhesive layer A>
It is preferable that an adhesive layer A (not shown) is provided between at least one of the base material 1, the pattern layer 4, and the backing base material 5 in the embossed wood grain decorative material. The adhesive layer A has a function of assisting the bonding of the substrate 1, the pattern layer 4, and the backing substrate 5, and can strengthen the bonding of each layer.
The adhesive layer A is preferably at least one selected from two-component curing resins, thermoplastic resins, thermosetting resins and ionizing radiation curing resins.

<Primer layer>
The floating wood grain decorative material can be provided with a primer layer (not shown) as desired. A primer layer is preferably provided between at least one of the substrate 1 , the pattern layer 4 and the backing substrate 5 . When a resin layer is provided on the embossed wood grain decorative material, a primer layer is preferably provided between the substrate 1 and the resin layer. The primer layer is a layer provided mainly to obtain the effect of improving the adhesion between layers, but in the present invention, since the effect of alleviating the heat shrinkage of each layer is also obtained, the decrease in gloss due to the degree of heat shrinkage of each layer , suppresses changes in appearance due to cracks, etc., and provides excellent weather resistance.
In addition, when the primer layer is provided on the surface opposite to the surface side of the base material (the primer layer in such a case is also referred to as a "back surface primer layer"), it is a floating wood grain decorative material. A blocking effect can be obtained in addition to the effect of improving the interlayer adhesion to the adherend. When the backing base material 5 is provided on the relief wood grain decorative material, the back surface primer layer is provided on the surface of the backing base material 5 . The back primer layer has a function of assisting bonding with adherends such as steel plates, aluminum plates, wood and plastic moldings, and can strengthen bonding with adherends.

For forming the primer layer, a resin composition is used in which a binder resin is appropriately mixed with a curing agent, a weather resistance agent such as an ultraviolet absorber and a light stabilizer, and an additive such as an antiblocking agent.
Examples of binder resins include urethane resins, acrylic polyol resins, acrylic resins, polyester resins, amide resins, butyral resins, styrene resins, urethane-acrylic copolymers, polycarbonate-based urethane-acrylic copolymers ( Polyurethane-acrylic copolymer derived from a polymer having a carbonate bond and two or more hydroxyl groups at the terminal and side chain (polycarbonate polyol), vinyl chloride-vinyl acetate copolymer, vinyl chloride-vinyl acetate-acrylic Resins such as copolymers, chlorinated propylene, nitrocellulose (nitrocellulose), and cellulose acetate are preferred, and these can be used alone or in combination. For example, a mixture of a polycarbonate-based urethane-acrylic copolymer and an acrylic polyol resin can be used as the binder resin.

In addition to the one-liquid curing type, curing of isocyanate compounds such as tolylene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPID), xylylene diisocyanate (XDI), etc. Various types of resins can be used, such as two-part curable types with agents.

From the viewpoint of improving weather resistance, the primer layer preferably contains a weather resistance agent such as an ultraviolet absorber and a light stabilizer.
The content of the UV absorber in the primer layer is preferably 1 part by mass or more, more preferably 5 parts by mass or more, and still more preferably 10 parts by mass or more with respect to 100 parts by mass of the resin constituting the primer layer, and the upper limit is is preferably 40 parts by mass or less, more preferably 30 parts by mass or less, and still more preferably 25 parts by mass or less.
The content of the light stabilizer in the primer layer is preferably 0.5 parts by mass or more, more preferably 1 part by mass or more, and still more preferably 1.5 parts by mass or more with respect to 100 parts by mass of the resin constituting the primer layer. The amount is particularly preferably 2 parts by mass or more, and the upper limit is preferably 20 parts by mass or less, more preferably 15 parts by mass or less, still more preferably 10 parts by mass or less, and particularly preferably 8 parts by mass or less. When the content of the ultraviolet absorber and the light stabilizer in the primer layer is within the above range, excellent performance as a primer layer and excellent weather resistance can be obtained.

It is preferable that the primer layer contains an antiblocking agent from the viewpoint of preventing blocking between the decorative wood grain materials having a embossed texture during production and storage.
Antiblocking agents include, for example, oxides such as aluminum oxide, magnesium oxide, silica, calcium oxide, titanium oxide and zinc oxide; hydroxides such as aluminum hydroxide, magnesium hydroxide and calcium hydroxide; magnesium carbonate and carbonate. carbonates such as calcium; sulfates such as calcium sulfate and barium sulfate; silicates such as magnesium silicate, aluminum silicate, calcium silicate and aluminosilicate; inhibitor; and the like, and these can be used alone or in combination.

In the inorganic compound-based antiblocking agent, the average particle size is preferably 1 μm or more, more preferably 3 μm or more. Moreover, as an upper limit, 8 micrometers or less are preferable and 7 micrometers or less are more preferable. When the average particle size of the anti-blocking agent is within the above range, an anti-blocking effect can be obtained, and the floating texture wood grain decorative materials are less likely to be scratched when rubbed against each other.
The content of the antiblocking agent is preferably 0.1 parts by mass or more, more preferably 0.3 parts by mass or more, and even more preferably 0.5 parts by mass or more with respect to 100 parts by mass of the resin constituting the primer layer. Moreover, as an upper limit, 5 mass parts or less are preferable, 3 mass parts or less are more preferable, and 2 mass parts or less are more preferable.

The thickness of the primer layer is preferably 1 μm or more, more preferably 2 μm or more, and 3 μm or more, from the viewpoint of obtaining the effect of improving interlayer adhesion and further the effect of alleviating thermal contraction of each layer. is more preferred. Also, the upper limit of the thickness of the primer layer is preferably 10 μm or less, more preferably 8 μm or less, and even more preferably 6 μm or less.

<Substrate>
The floating-tone wood grain decorative material can be used alone, but it may also be used by laminating it to an adherend.
Examples of the adherend include flat plates of various materials, plate materials such as curved plates, three-dimensional articles, sheets (or films), and the like. For example, wood veneers made of various types of wood such as cedar, cypress, pine, lauan, etc., wood plywood, particle board, wood fiber boards such as MDF (medium density fiber board), and wood members used as three-dimensional articles. ; Plate materials such as iron and aluminum, steel plates, three-dimensional articles, metal members used as sheets, etc.; Glass, ceramics such as ceramics, non-cement ceramic materials such as gypsum, non-ceramics such as ALC (lightweight cellular concrete) plates Plate materials such as ceramic materials and ceramic members used as three-dimensional articles; acrylic resin, polyester resin, polystyrene resin, polyolefin resin such as polypropylene, ABS (acrylonitrile-butadiene-styrene copolymer) resin, phenolic resin, vinyl chloride Plate materials such as resins, cellulose resins, epoxy resins, and rubbers, three-dimensional articles, resin members used as sheets, and the like can be used. Moreover, these members can be used individually or in combination of multiple types.

The material to be adhered may be appropriately selected from the above according to the application, such as interior or exterior members of buildings such as walls, ceilings, and floors, window frames, doors, handrails, baseboards, peripheral edges, malls, etc. When it is used as fittings or fixtures, it is preferably made of at least one member selected from wooden members, metal members and resin members. In that case, it is preferable to use at least one member selected from metal members and resin members.

The thickness of the adherend may be appropriately selected according to the application and material, preferably 0.1 mm or more and 20 mm or less, more preferably 0.3 mm or more and 10 mm or less, and even more preferably 0.5 mm or more and 5 mm or less.

<Adhesive Layer B>
It is preferable that the adherend and the embossed wood grain decorative material are bonded together via an adhesive layer B in order to obtain excellent adhesiveness.

The adhesive used for the adhesive layer B is not particularly limited, and known adhesives can be used. Preferred examples include adhesives such as heat-sensitive adhesives and pressure-sensitive adhesives. Examples of the resin used for the adhesive constituting the adhesive layer B include acrylic resin, polyurethane resin, vinyl chloride resin, vinyl acetate resin, vinyl chloride-vinyl acetate copolymer resin, styrene-acrylic copolymer resin, polyester Resins, polyamide resins, epoxy resins, and the like can be mentioned, and these can be used alone or in combination. In addition, a two-liquid curing type polyurethane-based adhesive or polyester-based adhesive using an isocyanate compound or the like as a curing agent can also be applied.
Moreover, an adhesive can also be used for the adhesive layer B. As the adhesive, acrylic-based, urethane-based, silicone-based, rubber-based, or other adhesives can be appropriately selected and used.

The thickness of the adhesive layer B is not particularly limited, but from the viewpoint of obtaining excellent adhesion, it is preferably 1 μm or more and 100 μm or less, more preferably 5 μm or more and 50 μm or less, and 10 μm or more and 30 μm or less. It is even more preferable to have

[Manufacturing method of floating wood grain decorative material]
The method for producing the floating wood grain decorative material of the present invention will be described below.

The method of providing the first convex portion 2, the second convex portion 3 and the inclined portion 10 on the base material 1 in the relief wood grain decorative material is not particularly limited, but embossing using an embossing plate or a shaping sheet. Alternatively, a method of transferring a layer having an uneven shape and an inclined shape using a transfer sheet having a layer having an uneven shape and an inclined shape to give an uneven shape and an inclined shape, and the like. In the present invention, embossing is preferably used from the viewpoint of productivity, and embossing using an embossing plate is more preferable.

As embossing, an embossing method by heating and pressurizing using an embossing plate is usually preferably used. In the embossing method by heating and pressurization, the surface of the decorative sheet on the surface protective layer side is usually heated at about 120 to 180° C., and is pressed with an embossing plate at about 10 to 50 kg/cm ² to create the uneven shape of the embossing plate. It is a method of shaping, cooling, and fixing, and a sheet-fed or rotary embossing machine can be used.

In addition, the embossing plate used for embossing is obtained by engraving the surface of a metal cylinder or flat plate with a laser beam, and a complementary uneven shape that is the same as the desired uneven shape in plan view but the unevenness is reversed. It is preferable to use an embossing plate (hereinafter also abbreviated as laser embossing plate) formed by varying the heights of the first convex portions and the second convex portions by adjusting the amount of light.
In the case of using a laser embossing plate to make an embossing plate having a detailed irregular shape of the first convex portion 2 and the second convex portion 3 specified by the present invention and an uneven shape complementary to the inclined shape of the inclined portion 10 , it is preferable to employ the plate-making method described below.
[Plate making method 1]
(1) First, prepare a relief-processed wooden board to be used as a manuscript.
(2) Next, using a three-dimensional surface roughness measuring device, the height H (X, Y) at each position coordinate (X, Y) within the plane of the wood board surface (in the XY plane in FIG. 1) is collected, and then the coordinates (X, Y) on the original are converted into height information H(θ, Z) on the metal cylinder used as the material of the embossed plate (θ, Z).
(3) Next, while rotating the metal cylinder around its axis, the surface of the cylinder is scanned while being irradiated with laser light for engraving, and the irradiation light amount E of the laser light at the coordinates (θ, Z) of the cylindrical shape is calculated. The irradiation light amount E=kH(θ, Z) corresponding to the collected height H(θ, Z) is controlled. k here is an appropriate coefficient. As a result, an uneven shape having a depth D(θ, Z)=klH(θ, Z) corresponding to the amount of irradiation light is engraved on the surface of the metal cylinder. l here is an appropriate coefficient.
(4) Through the above steps, a depth D(θ,Z)=klH(θ,Z) corresponding to the height H(X,Y) of the embossed wood plate surface of the original is formed on the surface of the metal cylinder. An embossing plate having a depth-concave pattern is obtained.
[Plate making method 2]
(1) First, prepare a relief-processed wooden board to be used as a manuscript.
(2) Next, after illuminating the manuscript under appropriate conditions, the surface of the manuscript is read directly by a scanner, or a positive or negative film obtained by photographing the manuscript is read by a scanner. Collect the information of the optical density P(X, Y) at each position coordinate (X, Y) in the plane of the wood board surface. As a result, an optical density P(X, Y)=mH(X, Y) corresponding to the height H(X, Y) at each positional coordinate (X, Y) in the plane of the wood board surface is obtained. m here is an appropriate coefficient. Then, it is converted into an optical density P(θ, Z) at the coordinates (θ, Z) on the metal cylinder used as the material of the embossing plate.
(3) Next, the optical density P(θ, Z) on the cylinder is converted into height information on the cylinder H(θ, Z)=nP(θ, Z). n here is an appropriate coefficient.
(4) Next, while rotating the metal cylinder around its axis, the surface of the cylinder is scanned while being irradiated with laser light for engraving, and the irradiation light amount E of the laser light at the coordinates (θ, Z) on the cylinder is measured. The irradiation light quantity E=kH(θ, Z) corresponding to the obtained height H(θ, Z) is controlled. k here is an appropriate coefficient. As a result, an uneven shape having a depth D(θ, Z)=klH(θ, Z) corresponding to the amount of irradiation light is engraved on the surface of the metal cylinder. l here is an appropriate coefficient.
(5) Through the above steps, a depth D(θ,Z)=klH(θ,Z) corresponding to the height H(X,Y) of the embossed wood plate surface of the original is formed on the surface of the metal cylinder. An embossing plate having a depth-concave pattern is obtained.
By using the laser embossing plate thus obtained, one side of the base material 1 is embossed, that is, shaped by stamping the embossing plate on one side of the base material 1. can be given the minute concave-convex shape of the first convex portion 2 and the second convex portion 3 and the inclined shape of the inclined portion 10 specific to the present invention, and the delivery time required for manufacturing is shorter than that of an embossing plate by electroforming or the like. can be shorter and cheaper.

To provide a decorative material with a floating tone wood grain according to an embodiment of the present invention, which has a design close to that of real wood due to visual appearance reproduction effects and tactile sensations, and which can be manufactured in a short time and at a low cost. can be done.

EXAMPLES Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited by these examples.

[Measurement and evaluation]
The following measurements and evaluations were carried out on the embossed wood grain decorative materials produced in Examples and Comparative Examples. Table 1 shows the results.

<Measurement of shape of first convex portion and second convex portion>
Using the 3D shape measuring machine "VR-3000" manufactured by Keyence Corporation, after photographing the surface side having the first convex part 2, the second convex part 3 and the inclined part 10 of the base material 1, attached The analysis was performed using the analysis application of
A measurement area (approximately 24 mm×approximately 18 mm) was defined at three points on the surface side of the substrate 1 having the first convex portion 2, the second convex portion 3, and the inclined portion 10. As shown in FIG. After setting a plane (reference plane) as a reference for measurement in the height data, each parameter was measured.
(1) Height measurement 10 points each in the direction (X direction shown in FIG. 1) orthogonal to the length direction (Y direction shown in FIG. 1) of the first convex portion 2 and the second convex portion 3. 30 cross-sectional curves were obtained and the height was calculated.
(2) Width/spacing measurement 10 points each for arbitrary widths and intervals in 3 measurement areas, for a total of 30 points, are measured, and each width and interval is calculated from the measurement image of the 3D shape measuring device. and calculated the average value.
(3) Ratio of second convex portion to first convex portion After setting, area measurement was performed. setting a height threshold so as to select only the first convex portion 2 from a cross-sectional curve in a direction (X direction shown in FIG. 1) orthogonal to the length direction (Y direction shown in FIG. 1) of the base material 1; From there, the surface area was integrated (surface area A). Next, a height threshold was set so as to select the first convex portion 2 and the second convex portion 3, and the surface area was integrated (surface area B). The surface area of the second convex portion 3 was calculated by subtracting the surface area A from the surface area B. The ratio of the surface area occupied by the second convex portions 3 to the ratio of the surface area occupied by the first convex portions 2 at arbitrary 30 locations was calculated by the following formula (1), and the obtained calculated values were averaged.
Surface area occupied by the second convex portion/Surface area occupied by the first convex portion=(surface area B−surface area A)/surface area A (1)
(4) Ratio of the second convex portion to the rest of the first convex portion Surface) After setting, the area was measured. setting a height threshold so as to select only the first convex portion 2 from a cross-sectional curve in a direction (X direction shown in FIG. 1) orthogonal to the length direction (Y direction shown in FIG. 1) of the base material 1; From there, the surface area was integrated (surface area A). Next, a height threshold was set so as to select the first convex portion 2 and the second convex portion 3, and the surface area was integrated (surface area B). The surface area of the second convex portion 3 was calculated by subtracting the surface area A from the surface area B. The surface area of the remaining portion of the first convex portion 2 was calculated by subtracting the surface area A from the measured total surface area (surface area C). The ratio of the second convex portion 3 to the remaining portion of the first convex portion 2 at 30 arbitrary locations was calculated by the following formula (2), and the obtained calculated values were averaged.
Surface area occupied by the second convex portion/Surface area occupied by the remainder of the first convex portion=(Surface area B−Surface area A)/(Surface area C−Surface area A) (2)
(5) Tilt Angle First, an arbitrary point on one surface of the substrate was measured with a 3D shape measuring instrument to obtain height data. Next, from the cross-sectional curve in the direction (X direction shown in FIG. 1) orthogonal to the length direction (Y direction shown in FIG. 1) of the base material 1, The angle was read at 30 arbitrary points, and the average value was calculated as the tilt angle.

<Designability>
The surfaces of the decorative wood grain decorative materials produced in Examples and Comparative Examples were subjected to a visual sensory evaluation to check design properties. 2 points for those that feel a design that is very close to real wood, 1 point for those that feel a design that is close to real wood, and 0 points for those that feel almost no design close to real wood, 20 subjects. evaluated and calculated the average score.
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 0.5 or more and less than 1.0 D: Average score of less than 0.5 of

<Tactile sensation>
A sensory evaluation was carried out by a finger touch check on the surface of the decorative wood grain decorative materials produced in Examples and Comparative Examples. 2 points for those who feel no unevenness and no discomfort with the design, 1 point for those who feel unevenness and no discomfort with the design, and 0 points for those who feel almost no unevenness and feel discomfort with the design. evaluated and calculated the average score.
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 0.5 or more and less than 1.0 D: Average score of less than 0.5 of

[Example 1]
Using a polypropylene resin containing a white pigment (manufactured by Prime Polymer Co., Ltd., product name “Prime Polypro F219DA”), a coating for forming a pattern layer is applied onto a backing substrate 6 having a thickness of 0.20 mm produced by a calendering method. The liquid was applied and dried to form a pattern layer 4 . A base material 1 having a thickness of 0.10 mm is formed on the pattern layer 4 using a polypropylene-based resin (manufactured by Prime Polymer Co., Ltd., trade name “Prime Polypro F219DA”) containing a radical scavenger and an ultraviolet absorber. A laminate was formed.

Next, the substrate 1 was heated to a softened state, and embossed from the substrate 1 side to form the first convex portion 2, the second convex portion 3 and the inclined portion 10 on the surface of the substrate 1. The embossing process in this step uses a laser embossing plate having a shape complementary to the first convex portion 2, the second convex portion 3 and the inclined portion 10 to shape the substrate 1 into an uneven shape and an inclined shape. By doing so, a base material 1 having a shaped uneven shape and an inclined shape was formed, and the embossed wood grain decorative material in Example 1 was obtained.
The height of the first convex portion 2 in the embossed wood grain decorative material in Example 1 is equal to or higher than the height of the top portion of the inclined portion 10 in the thickness direction of the base material 1. be.

[Examples 2 to 10, Comparative Example 1]
Floating wood grain decorative materials of Examples 2 to 10 and Comparative Example 1 were obtained in the same manner as in Example 1, except that the embossing plate used in the embossing process was changed.
The height of the first convex portion 2 in the embossed wood grain decorative materials in Examples 2 to 10 and Comparative Example 1 is the same as the height of the top portion of the inclined portion 10 in the thickness direction of the base material 1. or higher.

The embossed wood grain decorative material of the present invention has a design close to that of real wood due to its visual effects and tactile sensations, and is used as interior or exterior members of buildings such as walls, ceilings and floors, window frames, Doors, handrails, baseboards, rims, moldings and other fittings and fittings, kitchens, furniture or home electric appliances, decorative surface panels of cabinets such as OA equipment, layers that make up interior or exterior members of vehicles It is preferably used as.

DESCRIPTION OF SYMBOLS 1... Base material 2... 1st convex-shaped part 3... 2nd convex-shaped part 4... Pattern layer 5... Backing base material 10... Inclined part

Claims (16)

a substrate;
a first convex portion provided on one surface side of the base material;
an inclined portion provided on one surface side of the base material at a position different from the first convex portion in plan view;
A second convex portion provided on one surface side of the base material at a position different from the first convex portion and at least one of the inclined portion,
The inclined portion is arranged on one side of the first convex portion, and the inclined portion is not arranged on the other side of the first convex portion,
The inclined portion arranged on one side of the first convex portion extends from one adjacent first convex portion to the other adjacent first convex portion,
the height of the first convex portion is equal to or higher than the height of the top portion of the inclined portion in the thickness direction of the base material;
The height of the first protrusions is higher than the height of the second protrusions in the thickness direction of the base material, in the embossed wood grain decorative material. 2. The embossed wood grain decorative material according to claim 1, wherein the inclination angle of said inclined portion is 3 degrees or more and 70 degrees or less with respect to said substrate surface on which said inclined portion is provided. The embossed wood grain decorative material according to claim 1 or 2, wherein the height of the first convex portion is 0.050 mm or more and 0.500 mm or less from the surface of the base material. The embossed wood grain decoration according to any one of claims 1 to 3, wherein the width of the first convex portion is 0.20 mm or more and 5.00 mm or less in a direction perpendicular to the length direction of the base material. material. The embossed wood grain according to any one of claims 1 to 4, wherein the distance between the first convex portions in the direction orthogonal to the length direction of the base material is 0.20 mm or more and 30.00 mm or less. cosmetic material. The embossed wood grain decorative material according to any one of claims 1 to 5, wherein the ends of the first convex portions are present only at the edges of the base material. The embossed wood grain decorative material according to any one of claims 1 to 6, wherein the length of the first convex portion is longer than the length of the second convex portion in the length direction of the base material. . The embossed wood grain decorative material according to any one of claims 1 to 7, wherein the length of the second convex portion is 0.30 mm or more and 300.00 mm or less in the length direction of the base material. The embossed wood grain decorative material according to any one of claims 1 to 8, wherein the height of the second convex portion is 0.02 mm or more and 0.10 mm or less from the base surface or the inclined portion surface. . The embossed wood grain decoration according to any one of claims 1 to 9, wherein the width of the second convex portion is 0.06 mm or more and 0.90 mm or less in a direction perpendicular to the length direction of the base material. material. The ratio of the second convex portions to the ratio of the first convex portions on the base material surface is 0.50 or more and 4.00 or less, according to any one of claims 1 to 10. Floating wood grain decorative material. The ratio of the second convex portions to the remainder of the first convex portions on the base material surface is 0.10 or more and 3.00 or less, according to any one of claims 1 to 11. Floating wood grain decorative material. The embossed wood grain decorative material according to any one of claims 1 to 12, wherein the ends of the second convex portions in the length direction of the base material have a constricted and rounded shape. The embossed wood grain decorative material according to any one of claims 1 to 13, wherein the second convex portions are arranged in a row at intervals in the longitudinal direction of the base material. The relief wood grain decorative material according to any one of claims 1 to 14, further comprising a pattern layer on at least one surface side of said base material. The backing substrate according to any one of claims 1 to 15, further comprising a backing substrate on the side opposite to the surface on which the first convex portion, the second convex portion and the inclined portion of the substrate are provided. The described floating wood grain decorative material.

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