JP2020163807A - Decorative material - Google Patents

Abstract

To provide a decorative material having complicated and elaborated designability in which a tactile feeling and a visual effect are matching.SOLUTION: A decorative material includes: a substrate 1; a pattern layer 2 arranged on one face side of the substrate 1 and having an outline pattern layer 2a composing a plurality of neighboring unit closed areas in a plane view shape viewed from a normal direction of a substrate face; and a plurality of linear raised layers 3 disposed overlapping at least part of the outline pattern layer 2a, in which the plane view shape viewed from a normal direction of a substrate face extends linearly. Drawing directions of the plurality of linear raised layers 3 are substantially parallel.SELECTED DRAWING: Figure 1

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, etc. to impart design. 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 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).
In the decorative material as proposed in Patent Document 1, the interlocking between the tactile sensation given by the printed pattern and the visual effect of the printed pattern is not mentioned.

Japanese Unexamined Patent Publication No. 2018-114711

In recent years, with increasing consumer preference for luxury or various needs, more complicated designs are required, and it is necessary to meet stricter demands.
However, it cannot be said that the decorative material proposed in Patent Document 1 reproduces the design property that is desired to have a link between the tactile sensation and the visual effect, such as wood grain.

In view of the above problems, it is an object of the present invention to provide a decorative material having a complex tactile sensation and a visual effect, which are complicated and have a high degree of design.

In order to solve the above problems, as a result of diligent research, the present inventors have provided linear shapes on one surface side of the base material so as to overlap at least a part of the contour line pattern layer constituting the unit closed region. It has been found that the above problem can be solved by providing a raised portion. That is, the present invention provides the following [1] to [9].
[1] A pattern having a base material and a contour line pattern layer provided on one surface side of the base material and having a plan view shape formed by a plurality of adjacent unit closed regions when viewed from the normal direction of the base material surface. A plurality of linear ridges provided so as to overlap at least a part of the contour line pattern layer and linearly extending the plan view shape when viewed from the normal direction of the base material surface. A decorative material in which the extending directions of the linear ridges are substantially parallel.
[2] The decorative material according to [1], wherein the pattern layer further has a pattern pattern layer.
[3] The decorative material according to [1] or [2], wherein the height of the linear ridge is 5 μm or more and 60 μm or less from the bottom of the linear ridge.
[4] The decorative material according to any one of [1] to [3], wherein the length of the linear ridge portion in the stretching direction is 0.3 mm or more and 2,000 mm or less.
[5] The decorative material according to any one of [1] to [4], wherein the width orthogonal to the stretching direction of the linear ridge is 100 μm or more and 400 μm or less.
[6] The decorative material according to any one of [1] to [5], wherein the distance between adjacent linear ridges in a direction orthogonal to the extending direction of the linear ridge is 200 μm or more and 1,200 μm or less.
[7] The makeup according to any one of [1] to [6], wherein one surface side of the base material is provided with a point-like ridge having a point-like plan view shape when viewed from the normal direction of the base material surface. Material.
[8] The decorative material according to [7], wherein the punctate ridge portion has a circular or elliptical shape when viewed from the normal direction of the base material surface.
[9] The decorative material according to [7] or [8], wherein the height of the punctate ridge is lower than the height of the linear ridge.

According to the present invention, it is possible to provide a decorative material having a complex tactile sensation and a visual effect, which are complicated and have a high degree of design.

FIG. 1A is a schematic cross-sectional view of the decorative material according to the embodiment of the present invention, and FIG. 1B is a schematic plan view of the decorative material according to the embodiment of the present invention. FIG. 1 (c) is a schematic plan view showing a linear ridge. It is a schematic plan view which shows the unit closed area of the decorative material which concerns on embodiment of this invention. It is a schematic perspective view of the decorative material which concerns on embodiment of this invention. It is a schematic plan view which shows the arrangement of the linear ridge part in the decorative material which concerns on embodiment of this invention. It is a schematic plan view which shows the arrangement of the point-like ridge part in the decorative material which concerns on embodiment of this invention. FIG. 6A is a schematic cross-sectional view showing a decorative material when Method 1 or Method 2 is adopted as the method for producing the decorative material of the present invention, and FIG. 6B is a schematic cross-sectional view showing the decorative material of the present invention. It is a schematic cross-sectional view which shows the decorative material when the method 3 is adopted as the manufacturing method of.

Embodiments of the present invention will be described below with reference to the drawings. In the description of the drawings below, the same or similar parts are represented by the same or similar reference numerals. However, the drawings are schematic, and the relationship between the thickness and the plane dimensions, the ratio of the thickness of each layer, etc. are different from the actual ones. Therefore, the specific thickness and dimensions should be determined in light of the following explanations. In addition, it goes without saying that the drawings include parts having different dimensional relationships and ratios from each other.

(Embodiment)
As shown in FIGS. 1A to 1C, the decorative material according to the embodiment of the present invention is provided on one surface side of the base material 1 and the base material 1, and is the normal of the base material 1 surface. The plan view shape viewed from the direction (Z-axis direction in the figure) overlaps at least a part of the contour line pattern layer 2a and the pattern layer 2 having the contour line pattern layer 2a forming a plurality of adjacent unit closed regions R. It is provided with a plurality of linear ridges 3 whose plan-view shape as viewed from the normal direction of one surface of the base material extends linearly.

[Base material]
The form of the base material 1 may be either a flat plate, a curved plate, or the like.
The base material 1 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 application. It can be selected as appropriate. Each of the above base materials may be used alone, but for example, it is a laminate 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 1 is a laminated body, an adhesive layer and 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 1 include those made of various synthetic resins. Examples of the synthetic resin include olefin resins such as polyethylene, polypropylene, polymethylpentene, and various olefin-based thermoplastic elastomers, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, vinyl chloride-vinyl acetate copolymer, and ethylene-vinyl acetate copolymer weight. Combined, 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 various polyester thermoplastic elastomers, poly Acrylic resins such as methyl methacrylate, polyethyl methacrylate and butyl polyacrylate, polyamide resins typified by nylon 6 or nylon 66, cellulose resins such as cellulose triacetate and cellophane, polystyrene, polycarbonate resins, polyarylate resins and Examples include polyimide resin.

Examples of the metal base material used as the base material 1 include those made of aluminum, duralumin touno aluminum alloy, iron alloys such as iron and stainless steel, and copper alloys such as titanium, copper, and brass. Further, as the base material 1, a base material surface of another material obtained by plating or the like with these metals can also be used.

Examples of the ceramic-based base material used as the base material 1 include ceramic-based building materials such as gypsum, calcium silicate, cement, and wood piece cement, ceramics, glass, enamel, and fired tile.

As the fibrous base material used as the base material 1, for example, a paper base material 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, melamine resin, urethane resin, etc. The resin may be added (impregnated with resin after fabrication or internally filled at the time of fabrication). 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 1 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 1, 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, as the fibrous base material used as the base material 1, although it is distinguished from the above-mentioned paper base material, woven fabrics and non-woven fabrics of various fibers having an appearance and properties similar to paper can also be mentioned. 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 single boards of various woods such as cedar, pine, cypress, cypress, oak, lauan, and teak, plywood, laminated wood, particle board, and medium density fiberboard (MDF). ) Etc. can be mentioned.

The thickness of the base material 1 is not particularly limited, and various thickness forms called so-called films, sheets, plates and the like can be used, but from the viewpoint of mechanical strength, handleability and economy, the resin In the case of a base material, it is preferably 20 μm or more and 150 μm or less, more preferably 30 μm or more and 125 μm or less, and further preferably 40 μm or more and 100 μm or less.
From the above viewpoint, if the base material 1 is a paper base material, the basis weight is preferably 20 g / m ² or more and 150 g / m ² or less, and the basis weight is 25 g / m ² or more and 125 g / m ² or less. More preferably, the basis weight is 30 g / m ² or more and 100 g / m ² or less.

The base material 1 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 a corona discharge treatment, a chromium oxidation treatment, a flame treatment, a hot air treatment, an ozone-ultraviolet treatment method, and the like, and examples of the unevenness method include a sandblast method, a solvent treatment method, and the like. These surface treatments are appropriately selected according to the type of the base material 1, 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 1 in order to improve the interlayer adhesion between the base material 1 and another layer, strengthen the adhesiveness with the adherend, and the like. ..

[Pattern layer]
As shown in FIGS. 1 (a) and 1 (b), the decorative material according to the embodiment of the present invention has a plurality of unit closed regions R having a plan view shape seen from the normal direction of one surface of the base material. It is characterized by including a pattern layer 2 having a contour line pattern layer 2a.
The unit closed region R formed by the contour line pattern layer 2a can take various forms such as a polygon. As the unit closed region R, for example, as shown in FIGS. 2 (a) and 2 (b), a square is arranged, and as shown in FIGS. 2 (c) and 2 (d), a rectangle is arranged. Can be taken. Further, as the unit closed region R, for example, a form in which a hexagon is arranged as shown in FIG. 2 (e) and a form in which a triangle is arranged as shown in FIG. 2 (f) can be adopted. ..

The contour line pattern layer 2a constituting the unit closed region R is not particularly limited, and a straight line, a curved line, a polygonal line, or the like can be adopted as the plan view shape. That is, a straight line, a curved line, a polygonal line, or the like may be provided as a line segment constituting the unit closed region R which is a polygon.
The contour line pattern layer 2a constituting the unit closed region R may macroscopically constitute a closed region even if it has an opening in a part as a plan view shape.

As shown in FIGS. 1A and 1B, the pattern layer 2 preferably further has a pattern pattern layer 2b.
The patterns formed by the pattern layer 2b include wood grain pattern, stone grain pattern (open surface of granite, etc.), cloth grain pattern, leather grain 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 using ordinary process colors such as yellow, red, blue, and black, and also by multicolor printing using special colors prepared by preparing plates of the individual colors that make up the pattern. Will be done.

As shown in FIGS. 3A and 3B, the pattern layer 2 preferably has a specific pattern pattern layer 2c as a portion to be emphasized in the pattern. The points to be emphasized in the pattern include, for example, knots, hangnail and cracks when the pattern layer 2b is a wood grain pattern, crystal parts when the pattern layer 2b is a stone pattern, and the pattern pattern. Examples thereof include holes when the layer 2b has a brick pattern.

The pattern layer 2 is formed by appropriately arranging a colorant composed of a pigment and / or a dye so as to obtain a desired design. The pattern layer 2 is formed by a printing method such as offset printing, flexo printing, gravure printing, screen printing, spray printing and inkjet printing, and a transfer method for transferring a printed pattern. The pattern layer 2 may be a single layer, or may be formed from two or more layers.

As the ink used for forming the pattern layer 2, 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. For example, acrylic resin, styrene resin, polyester resin, urethane resin, chlorinated polyolefin resin, vinyl chloride-vinyl acetate copolymer resin, polyvinyl butyral resin, and alkyd resin. Examples thereof include resins, petroleum-based resins, ketone resins, epoxy-based resins, melamine-based resins, fluorine-based resins, silicone-based resins, nitrified cotton-based resins, fibrous derivatives, and rubber-based resins. These resins can be used alone or in admixture of two or more.
Colorants include, for example, inorganic pigments such as titanium white, antimony white, iron black, yellow lead, titanium yellow, petals, cadmium red, ultramarine blue, cobalt blue; quinacridone red, isoindolinone yellow, phthalocyanine blue, nickel- Organic pigments such as azo complex, azomethine azo black pigment, perylene black pigment; gold pigment consisting of scaly foil pieces such as aluminum and brass; pearl luster consisting of scaly foil pieces such as titanium dioxide coated mica and basic lead carbonate Examples include colorants such as (pearl) pigments.
The pattern layer 2 may contain additives such as an antioxidant, an ultraviolet absorber, and a light stabilizer.

The thickness of the pattern layer 2 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 designability of the pattern.

[Linear ridge]
As shown in FIGS. 1 (a) and 1 (b), the decorative material according to the embodiment of the present invention is provided so as to overlap at least a part of the contour line pattern layer 2a, and is a method of one surface of a base material. It is characterized by including a plurality of linear ridges 3 whose plan view shape when viewed from the linear direction extends linearly. When the linear raised portion 3 touches the surface of the decorative material with a finger, the linear shape in a plan view tends to increase the contact area of the finger and give a strong tactile sensation. On the other hand, since the linear ridge portion 3 has a linear shape in a plan view, the reflection of light is directional, and the reflection (lighting method) changes depending on the incident angle of the light, which affects the visual effect. There is.
The linear raised portion 3 may be provided overlapping at least a part of the contour line pattern layer 2a, and may be provided overlapping all of the contour line pattern layer 2a. Since the linear ridges 3 are provided so as to overlap at least a part of the contour line pattern layer 2a, the linear ridges 3 have an effect of increasing the tactile sensation and the visual effect in the contour forming the unit closed region R. The linear ridge 3 provides a tactile sensation synchronized with the visual effect of the joint portion in, for example, a block pattern, a tiled pattern, a brick pile pattern, etc., and the visual effect of the contour line pattern layer 2a and the tactile sensation of the linear ridge portion 3. It is possible to realize the design interlocking by. By realizing the design interlocking, it is possible to make the convex shape stand out in the joint part that exerts the convex visual effect, and to make the concave shape stand out in the joint part that exerts the concave visual effect. ..

As shown in FIGS. 3 (a) and 3 (b), the linear raised portion 3 is preferably provided so as to overlap at least a part of the specific pattern pattern layer 2c. The linear raised portion 3 may be provided overlapping at least a part of the specific pattern pattern layer 2c, and may be provided overlapping all of the specific pattern pattern layer 2c. Since the linear raised portion 3 is provided so as to overlap at least a part of the specific pattern pattern layer 2c, it has an effect of increasing the tactile sensation at the portion to be emphasized in the pattern. When the specific pattern layer 2c expresses knots, hangnail, cracks, etc. in the wood grain pattern, the specific pattern pattern layer 2c expresses the crystal part, etc. in the stone pattern, and the linear ridge portion 3 When the specific pattern layer 2c expresses a hole or the like in a brick pile pattern, the tactile sensation of each can be increased and emphasized.
When the specific pattern layer 2c expresses the knots in the wood grain pattern as shown in FIG. 3, the linear ridges 3 overlap with the knots represented by the specific pattern layer 2c as shown in FIG. Is placed in.

Stretching direction d ₁ of the plurality of linear ridges 3, characterized in that each is substantially parallel. As used herein, "substantially parallel" is meant to include a state which is approximately parallel to the at the state stretching direction d ₁ of the plurality of linear ridges 3 are perfectly parallel, not perfect. In the present specification, the term "substantially parallel", generally refers to a state in which the stretching direction d ₁ of the linear ridges 3 can be said to be roughly parallel, even if the place is not parallel to the details, the macroscopic If it is parallel to, it is included in "approximately parallel".

The angle between the stretching direction d ₂ in the stretching direction d ₁ and the contour line patterns 2a of theta (see FIG. 1 (c)) is linear ridges 3 are not particularly limited, reduced visual effect by the linear ridges 3 From the viewpoint of suppressing the temperature, it is preferably 10 degrees or more and 70 degrees or less.

The height H of the linear ridge 3 is preferably 5 μm or more and 60 μm or less, and 7 μm or more and 45 μm or less from the bottom of the linear ridge 3 from the viewpoint of obtaining an appropriate tactile sensation by the linear ridge 3. More preferably, it is more preferably 10 μm or more and 30 μm or less.
The height H of the linear ridges 3 can be obtained by measuring the heights H of 30 linear ridges 3 existing at arbitrary positions on the surface of the base material 1 using a 3D shape measuring device. It can be measured by averaging the values of each measurement result obtained.

The length of the linear ridge 3 in the stretching direction d ₁ (see FIG. 1 (c)) is not particularly limited, but from the viewpoint of obtaining an appropriate tactile sensation by the linear ridge 3, 0.3 mm or more 2, It is preferably 000 mm or less, more preferably 0.4 mm or more and 1,000 mm or less, further preferably 0.5 mm or more and 250 mm or less, and even more preferably 1 mm or more and 100 mm or less.
The length of the linear ridge 3 in the stretching direction d ₁ is determined by using a 3D shape measuring instrument to measure the length d ₁ of the 10 linear ridges 3 existing at arbitrary positions on the surface of the base material _1. It can be measured by measuring the length of the above and averaging the values of the obtained measurement results.

The width W (see FIG. 1 (c)) orthogonal to the stretching direction d ₁ (see FIG. 1 (c)) of the linear ridge 3 is 100 μm or more from the viewpoint of obtaining an appropriate tactile sensation by the linear ridge 3. It is preferably 400 μm or less, more preferably 125 μm or more and 300 μm or less, and further preferably 150 μm or more and 200 μm or less.
The width W of the linear ridges 3 was obtained by measuring the widths W of 30 linear ridges 3 existing at arbitrary locations on the surface of the base material 1 using a 3D shape measuring device. It can be measured by averaging the values of each measurement result.

The distance D between adjacent linear ridges 3 in the direction orthogonal to the extension direction d ₁ (see FIG. 1 (c)) of the linear ridge 3 (see FIG. 1 (c)) is the tactile sensation of the linear ridge 3. It is preferably 200 μm or more and 1,200 μm or less, more preferably 250 μm or more and 800 μm or less, and 300 μm or more and 500 μm or less from the viewpoint of increasing the number of gaps and reducing the designability due to the visible gap. Is even more preferable.
The distance D between the linear ridges 3 was obtained by measuring the distance D between the 30 linear ridges 3 existing at arbitrary positions on the surface of the base material 1 using a 3D shape measuring device. It can be measured by averaging the values of each measurement result.

The linear ridge 3 is preferably formed of at least one selected from a two-component curable resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curable resin.

Examples of the two-component curable resin include a two-component curable polyurethane resin using isocyanate 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.

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

The thermosetting resin includes those having a functional group that reacts with the curing agent and those containing a material corresponding to the curing agent (including self-crosslinking type). 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.

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 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 producing the decorative material, the ionized radiation curable resin is more preferably a compound having two or more ethylenically unsaturated bonding groups, and above all, ethylenically unsaturated. A polyfunctional (meth) acrylate compound having two or more binding groups is more preferable. 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-based compounds, the bifunctional (meth) acrylate-based 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) acrylate is obtained, for example, by reacting a polyhydric alcohol or organic diisocyanate with a hydroxy (meth) acrylate.
Further, the preferable epoxy (meth) acrylate is a (meth) acrylate obtained by reacting a trifunctional or higher functional aromatic epoxy resin, an alicyclic epoxy resin, an aliphatic epoxy resin or the like with a (meth) acrylic acid, 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 for forming a linear ridge preferably contains an additive such as a photopolymerization initiator and a photopolymerization accelerator.
As the photopolymerization initiator, in the case of a radical polymerization type such as a (meth) acrylate-based monomer or oligomer, acetophenone, benzophenone, α-hydroxyalkylphenone, Michler ketone, benzoin, benzyldimethylketal, benzoylbenzoate, α-acyloxy One or more selected from monomers, thioxanthones and the like 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.

The linear raised portion 3 preferably has particles from the viewpoint that the height H can be easily controlled and a tactile sensation can be imparted.
The blending amount of the particles in the resin composition for forming the linear ridge 3 for forming the linear ridge 3 is a line from the viewpoint that the linear ridge 3 can be formed with good reproducibility and a tactile sensation can be imparted. It is preferably 15 parts by mass or more and 75 parts by mass or less, more preferably 20 parts by mass or more and 65 parts by mass or less, and 30 parts by mass or more and 60 parts by mass with respect to 100 parts by mass of the resin composition for forming a raised portion. It is more preferably less than a part.
Examples of the particles include alumina beads, acrylic beads, urethane beads, silicone beads, nylon beads and the like. As the particles, the above-mentioned one type may be used alone, or two or more types may be used in combination.
The average particle size of the particles is preferably 10 μm or more and 80 μm or less, more preferably 12 μm or more and 50 μm or less, and 15 μm or more and 30 μm or less from the viewpoint of controlling the height H of the linear ridge portion 3. Is even more preferable. Further, the average particle size of the particles is preferably 1/2 or less of the plate depth from the viewpoint of ink transfer stability.
The average particle size of the particles in the present invention is measured by using a laser diffraction type particle size distribution measuring device "SALD-2100-WJA1" manufactured by Shimadzu Corporation, and using compressed air to measure the powder to be measured from the nozzle. It is an average of the measured values by the injection type dry measurement method, which is injected and dispersed in the air for measurement.

The linear ridge portion 3 may be colorless and transparent, but may be colored and transparent if necessary. When the linear ridge portion 3 is colored, a colorant (pigment or dye) can be added to the composition for forming the linear ridge portion to color the linear ridge portion 3.
As the colorant, known or commercially available pigments or dyes can be appropriately used. As the colorant, one type may be used alone, or two or more types 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.
The composition for forming a linear ridge includes a filler, a matting agent, a foaming agent, a flame retardant, a lubricant, an antistatic agent, an antioxidant, an ultraviolet absorber, a light stabilizer, and a radical scavenger, if necessary. , Various additives such as soft components (eg rubber) may be included.

<Dot-like ridge>
As shown in FIG. 5, the decorative material according to the embodiment of the present invention has a punctate ridge on one surface side of the base material 1 in which the plan view shape seen from the normal direction of the base material 1 is punctate. It is preferable to include the part 4.
When the point-shaped raised portion 4 touches the surface of the decorative material, the contact area of the finger is small because the shape in a plan view is point-shaped, and the tactile sensation tends to be soft and weak. That is, the point-shaped raised portion 4 can give a weak tactile sensation as compared with the linear raised portion 3, and can express the contrast of the tactile sensation. Further, the point-shaped raised portion 4 has a point-like shape in a plan view from the normal direction of one surface of the base material, so that incident light can be diffusely reflected, and the design has a low gloss regardless of the incident angle of the light. Can be realized. Since the point-like raised portion 4 has the above viewpoint, it is preferable that the point-like raised portion 4 is selectively provided at a position where a low-gloss design of the pattern is realized, and the point-shaped raised portion 4 may be provided overlapping at least a part of the pattern pattern layer 2b. preferable.

The plan view shape of the point-shaped raised portion 4 when viewed from the normal direction of one surface of the base material is preferably circular or elliptical. When the plan view shape of the pointed ridge portion 4 as viewed from the normal direction of one surface of the base material is circular or elliptical, a tactile contrast with the linear ridge portion 3 can be realized.

The height of the punctate ridge 4 is preferably lower than the height H of the linear ridge 3 from the viewpoint of realizing an appropriate tactile sensation by the linear ridge 3. The height of the punctate ridge 4 is preferably 5 μm or more lower than the height H of the linear ridge 3, more preferably 10 μm or more, and even more preferably 20 μm or more.
From the above viewpoint, the height of the punctate ridge 4 is preferably 5 μm or more and 30 μm or less, more preferably 6 μm or more and 25 μm or less, and 8 μm or more and 20 μm or less from the bottom of the punctate ridge portion 4. Is even more preferable.
The height of the punctate ridges 4 was obtained by measuring the heights of the punctate ridges 4 existing at arbitrary locations on the surface of the base material 1 using a 3D shape measuring instrument. It can be measured by averaging the values of each measurement result.

The width of the punctate ridge 4 is the longest portion in the plan view (see FIG. 5) of the top of the punctate ridge 4. The width of the punctate ridge 4 is not particularly limited, but is preferably 200 μm or more and 350 μm or less, preferably 225 μm or more and 325 μm or less, from the viewpoint of reducing the contact area of the finger and diffusely reflecting the incident light (external light). It is more preferable that it is 250 μm or more and 300 μm or less.
The width of the punctate ridges 4 is measured by measuring the widths of the punctate ridges 4 existing at arbitrary locations on the surface of the base material 1 using a 3D shape measuring device, and each measurement obtained. It can be measured by averaging the resulting values.

The punctate ridge 4 is preferably formed of at least one selected from a two-component curable resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curable resin, similarly to the linear ridge 3 described above.

[Other configurations]
<Protective resin layer>
The decorative material of the present invention preferably further includes a protective resin layer (not shown) on the base material 1 to protect the pattern layer. The protective resin layer can exhibit high wear resistance, scratch resistance, and luster in line with the desired design expression.
The protective resin layer may be provided on the entire surface of the base material 1, but in consideration of generating a gloss difference from the surrounding region and expressing a visual unevenness, the linear raised portion 3 and the protective resin layer and the protective resin layer may be provided. It is preferable to provide it directly above and in the vicinity of the point-like ridge portion 4, and it is more preferable to provide it only directly above the linear ridge portion 3 and the punctate ridge portion 4.

The protective resin layer preferably contains a matting agent from the viewpoint of improving the gloss adjusting effect.
Examples of the matting agent include inorganic fine particles and organic fine particles. Examples of the inorganic fine particles include silica, alumina, aluminosilicate, kaolinite, calcium carbonate, barium sulfate, and glass.
Examples of the organic fine particles include acrylic resin, polycarbonate resin, urethane resin, urea resin, benzoguanamine resin, benzoguanamine-melamine-formaldehyde condensate and the like.
As the matting agent, silica particles are preferable 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>
The decorative material preferably further includes a backing base material (not shown) on the side opposite to the surface on which the linear ridges 3 and the punctate ridges 4 are provided. The lining base material is provided as necessary to reinforce the decorative material, impart adhesiveness to the adherend, and impart concealment.

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

The thickness of the lining base material is preferably 1.0 mm or more and 50 mm or less, more preferably 1.5 mm or more and 40 mm or less, still more preferably 2.5 mm or more and 30 mm or less, from the viewpoint of improving reinforcing properties, adhesiveness and hiding property. ..

<Adhesive layer>
The decorative material is provided with an adhesive layer (not shown) between at least one of the base material 1, the pattern layer 2, the linear raised portion 3, the dotted raised portion 4, the protective resin layer, and the backing base material. It is preferable to have. The adhesive layer has a function of assisting the joining of each layer of the base material 1, the pattern layer 2, the linear raised portion 3, the dotted raised portion 4, the protective resin layer and the backing base material, and strengthens the joining of each layer. can do.
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 is provided with a primer layer (not shown) between at least one of the base material 1, the pattern layer 2, the linear raised portion 3, the dotted raised portion 4, the protective resin layer, and the backing base material. Is preferable. The primer layer has a function of assisting the bonding of each layer of the base material 1, the pattern layer 2, the linear ridge portion 3, the punctate ridge portion 4, the protective resin layer and the lining base material, and strengthens the bonding of each layer. be able to.
As the primer layer, a resin that improves the adhesion between the two layers facing each other across the primer layer may be appropriately selected, and is not particularly limited.

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

In the decorative material, the method of providing the linear ridges 3 on one surface side of the base material 1 is not particularly limited, but only the portion of the pattern layer 2 provided on the base material 1 on which the linear ridges 3 are formed. A method of applying the composition for forming a linear ridge to the surface and curing the composition for forming the linear ridge (method 1), using a transfer sheet provided with a layer having an uneven shape of the linear ridge 3. , A method of transferring a layer having an uneven shape onto a base material 1 to give an uneven shape (method 2), a method of embossing using an embossed plate or a shaped sheet (method 3), and the like.
When the method 1 or the method 2 is adopted as the method for producing the decorative material of the present invention, as shown in FIG. 6A, the linear ridge 3 is placed on the pattern layer 2 provided on the base material 1. A decorative material having the above can be obtained. When the method 3 is adopted as the method for producing the decorative material of the present invention, as shown in FIG. 6B, a part of the pattern layer 2 provided on the base material 1 functions as a linear ridge portion 3. It is possible to obtain a decorative material to be used. 6 (a) and 6 (b) show a laminated structure in which only the base material 1, the pattern layer 2, and the linear raised portion 3 are laminated for convenience.

According to the decorative material according to the embodiment of the present invention, by providing the linear ridge portion overlapping at least a part of the contour line pattern layer, the tactile sensation and the visual effect are linked, and it is complicated and highly advanced. It is possible to provide a decorative material having a good design.

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

[Measurement and evaluation]
The following measurements and evaluations were performed on the decorative materials produced in Examples and Comparative Examples. The results are shown in Table 1.

<Measurement of base material surface shape>
After photographing the surface side of the base material 1 having the linear ridges 3 and the punctate ridges 4 using the 3D shape measuring machine "VK-X1050" manufactured by KEYENCE CORPORATION, the attached analysis application is used. Was analyzed.
Three points on the surface side of the base material 1 having the linear ridges 3 and the punctate ridges 4 were set as measurement regions (about 24 mm × about 18 mm). After setting the plane (reference plane) to be the reference for measurement in the height data, each parameter was measured.
(1) Height measurement 30 cross sections 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 of the linear raised portion 3 and the point-shaped raised portion 4. Get the curve. The heights of the linear ridges 3 and the punctate ridges 4 were calculated from the acquired cross-sectional curves, and the average values were calculated.
(2) Width / interval / length measurement At three locations in the measurement area, 30 planar measurements were performed for the arbitrary width / interval / length of the linear ridge 3 from the measurement image of the 3D shape measuring instrument. Each width, interval, and length were calculated, and the average value was calculated.

<Tactile sensation>
The surface of the decorative material prepared in Examples and Comparative Examples was subjected to sensory evaluation by a touch check. 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

<Design interlocking>
Sensory evaluation (sensory evaluation of design interlocking) regarding whether or not the visual effect of the contour line pattern layer and the tactile sensation of the linear ridges match with respect to the surface of the decorative material produced in Examples and Comparative Examples. went. Two points where the visual effect of the contour pattern layer and the tactile sensation of the linear ridges match very well, and the visual effect of the contour pattern layer and the tactile sensation of the linear ridges match. Twenty subjects evaluated and calculated the average score, with 1 point being the one that felt that the contour line pattern layer and 0 point that the visual effect of the contour line pattern layer did not match the tactile sensation of the linear ridge.
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

[Example 1]
Two-component curable acrylic mixed resin (hardener: hexamethylene diisocyanate) (colorant: titanium oxide, iron oxide, valve handle, carbon black, etc.) on reinforced paper (basis weight 30 g / m ² ) for building materials A printing ink containing (pigment) was applied to provide a colored solid layer (thickness after drying: 5 μm). A composition for forming a pattern layer containing an alkyd-nitrocellulose mixed resin (colorant: disazo-based, clay, monoazo-based, cyanine blue, carbon black and other pigments) is applied onto the colored solid layer by a gravure printing method. A wood grain pattern layer 2 (thickness after drying: 4 μm) was provided. The pattern layer 2 includes the contour line pattern layer 2a and the pattern pattern layer 2b that form the unit closed region R.
Next, a composition for forming a protective resin layer using a two-component curable acrylic mixed resin as a binder (matting agent: silica, average particle size 2 μm, 29% by mass) (curing agent: toluene diisocyanate) on the entire surface of the pattern layer 2. A first protective resin layer (thickness after drying: 4 μm) was provided by applying a system (hexamethylene diisocyanate system).
Next, a composition for forming a protective resin layer (matte agent: silica, average particle size 2 μm, 2% by mass) using a two-component curable acrylic mixed resin as a binder, which is synchronized on the contour line pattern layer 2a (curing agent: Toluene diisocyanate-based, hexamethylene diisocyanate-based) was applied to provide a second protective resin layer (thickness after drying: 2 μm).
Next, a composition for forming a linear ridge portion using a two-component curable acrylic-urethane resin as a binder along the second protective resin layer (particles: acrylic beads, average particle size 20 μm, 25% by mass) (curing agent). : Hexamethylene diisocyanate system) was applied using a pattern plate (plate depth: 90 μm) to provide a linear ridge 3 (height after drying: 30 μm).
Finally, it was heat-cured at 70 ° C. for 24 hours to obtain a cosmetic material.

[Example 2]
Composition for forming linear ridges (particles: alumina beads, average particle size 4 μm, 24% by mass) (hardener:) in order to change the height to linear ridges 3 (height after drying: 20 μm). A decorative material of Example 2 was obtained in the same manner as in Example 1 except that the hexamethylene diisocyanate system) was applied using a pattern plate (plate depth: 90 μm).

[Example 3]
In order for the linear ridge 3 (height after drying: 30 μm) and the punctate 4 (height after drying: 10 μm) to coexist, a composition for forming a linear / punctate ridge is formed. A decorative material of Example 3 was obtained in the same manner as in Example 1 except that the coating was performed using a plate having a shape / dot pattern (plate depth: 90 μm).

[Comparative Example 1]
Examples except that the dotted ridge 4 (height after drying: 30 μm) was coated with a plate having only a punctate pattern (plate depth: 90 μm) without having the linear ridge 3. The decorative material of Comparative Example 1 was obtained in the same manner as in 1.

The decorative material of the present invention has a link between tactile sensation and visual effect, and has a complicated and highly designable property, and is used for interior / exterior members of buildings such as walls, ceilings, and floors, window frames, doors, and the like. In addition to fittings such as handrails, skirting boards, peripheral edges, and moldings, it is suitably used as a surface decorative board for kitchens, furniture or light electric appliances, cabinets for OA equipment, etc., and as a layer constituting interior / exterior members of vehicles.

1 ... Base material 2 ... Pattern layer 2a ... Contour line Pattern layer 2b ... Pattern pattern layer 3 ... Linear ridge 4 ... Dot-like ridge

Claims (9)

With the base material
A pattern layer provided on one surface side of the base material and having a contour line pattern layer whose plan view shape as viewed from the normal direction of the base material surface constitutes a plurality of adjacent unit closed regions.
It is provided with a plurality of linear ridges that are provided so as to overlap at least a part of the contour line pattern layer and that linearly extend the plan view shape when viewed from the normal direction of the base material surface.
A decorative material in which the extending directions of the plurality of linear ridges are substantially parallel. The decorative material according to claim 1, wherein the pattern layer further has a pattern pattern layer. The decorative material according to claim 1 or 2, wherein the height of the linear ridge is 5 μm or more and 60 μm or less from the bottom of the linear ridge. The decorative material according to any one of claims 1 to 3, wherein the length of the linear ridge portion in the stretching direction is 0.3 mm or more and 2,000 mm or less. The decorative material according to any one of 1 to 4, wherein the width orthogonal to the stretching direction of the linear ridge portion is 100 μm or more and 400 μm or less. The decorative material according to any one of 1 to 5, wherein the distance between adjacent linear ridges in a direction orthogonal to the stretching direction of the linear ridge is 200 μm or more and 1,200 μm or less. The decorative material according to any one of claims 1 to 6, wherein one surface side of the base material is provided with a point-like ridge having a point-like plan view shape when viewed from the normal direction of the base material surface. .. The decorative material according to claim 7, wherein the punctate ridge portion has a circular or elliptical shape when viewed from the normal direction of the base material surface. The decorative material according to claim 7 or 8, wherein the height of the punctate ridge is lower than the height of the linear ridge.