JP2975075B2 - Cosmetic material - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a cosmetic material having both glitter and a high degree of three-dimensional effect.

[Prior Art] As a method of obtaining a decorative material in which the design characteristics are exhibited by glitter and three-dimensional appearance, a printing pattern using a normal glitter ink for giving glitter is applied, and then this printing is performed. There has been proposed a decorative material in which a transparent to translucent synthetic resin layer is formed on a pattern surface and an embossed pattern is formed on the surface of the synthetic resin layer.

[Problems to be Solved by the Invention] By the way, the conventional decorative material using a combination of the above-described uneven pattern on the surface and a printed pattern layer made of glittering ink has an uneven pattern for producing a three-dimensional effect. Since it stays only in the layered portion, it is not possible to obtain a glitter having an excellent three-dimensional effect.

On the other hand, the present invention provides a decorative material having a deep glitter.

[Means for Solving the Problems] The decorative material of the first invention is formed on a decorative material base sheet having a concave portion on the surface and a non-concave portion on the surface of the decorative material base sheet. A concealing layer and a pattern printing pattern layer provided on the surface of the base material sheet for decorative material or the surface of the concealing layer, wherein the base material sheet for decorative material is a synthetic resin containing a glitter pigment It is composed of sheets.

The decorative material of the second invention is a decorative material base sheet having a concave portion on the surface, a concealing layer formed on a non-concave portion of the surface of the decorative material base sheet, and a decorative material base material. A transparent to translucent resin layer laminated so as to cover the concealing layer on the surface of the sheet, and between the surface of the decorative material base sheet or the surface of the concealing layer and the back surface of the transparent to translucent resin layer. And the base material sheet for a decorative material is formed of a synthetic resin sheet containing a glitter pigment.

The decorative material according to the third aspect of the present invention includes a decorative material base sheet having a concave portion on the surface, a concealing layer formed on a non-concave portion of the surface of the decorative material base sheet, and a decorative material base material. A transparent to translucent resin layer that is laminated so as to cover the concealing layer on the surface of the sheet, and a pattern printing pattern layer that is formed on the surface of the transparent to translucent resin layer, The decorative material base sheet is made of a synthetic resin sheet containing a glitter pigment.

The decorative material according to the fourth aspect of the present invention includes a decorative material base sheet having a concave portion on the surface, a concealing layer formed on a non-concave portion of the surface of the decorative material base sheet, and a decorative material base material. A transparent to translucent resin layer laminated to cover the surface of the sheet with the concealing layer, a clear sheet layer laminated to the surface of the transparent to translucent resin layer, and a transparent to translucent resin layer And the pattern printing pattern layer formed between the front surface of the clear sheet layer and the back surface of the clear sheet layer, and the base material sheet for decorative material is formed of a synthetic resin sheet containing a glitter pigment. .

The decorative material according to the fifth aspect of the present invention is the decorative material having any one of the above-described second, third, and fourth aspects, wherein the transparent material laminated on the surface of the decorative material base sheet is used. The translucent resin layer has a thickness of 10 to 300 μm.

The decorative material according to the sixth aspect of the present invention has a configuration in which a gloss adjusting resin layer is further laminated on the surface of the decorative material having the above-described first to fifth aspects of the present invention. I have.

A decorative material according to a seventh aspect of the present invention is the decorative material having any one of the above-described first to sixth aspects, wherein the shape of the concave portion in the decorative material base sheet having a concave portion on the surface is different from that of the first aspect. The shape is a fine concave shape similar to the fiber shape or hairline shape of the skin of a natural tree.

The decorative material according to the eighth aspect of the present invention is the decorative material having any one of the above-described first to seventh aspects, wherein the shape of the concave portion in the decorative material base sheet having a concave portion on the surface is different from that of the first aspect. The spatial frequency spectrum obtained by Fourier-transforming the cross-sectional curves in the horizontal and / or vertical direction of the decorative material base sheet is in a 1 / f type that is inversely proportional to the spatial frequency or has an array shape similar thereto.

Examples of the base sheet for a decorative material in the decorative material of the present invention having the above constitution include polyethylene, polypropylene, saturated polyester, polyvinyl chloride, polycarbonate, nylon, PVA, polystyrene, ionomer, polyvinylidene chloride, ethylene-acetic acid. Thermoplastic resin sheets such as vinyl copolymers, ethylene-vinyl alcohol copolymers, ABS, acrylic resins, and composite sheets thereof are used.

It is sufficient that the surface layer portion of the decorative material base sheet is formed of a synthetic resin sheet containing a glittering pigment having a concave portion on the surface.

Therefore, it is a matter of course that a composite base sheet formed by combining the above-described thermoplastic resin sheet with a general base material used for this type of decorative material, such as paper, can be used.

It should be noted that a typical example of a base material used in combination with the thermoplastic resin sheet is, for example, a basis weight of 20.
Up to about 200g of paper-based sheet, vinyl wallpaper material, pulp board, paperboard, gypsum board paper, various wood, plywood, wood-based base material such as particle board, metal sheet or board such as iron, Al, copper, plaster Inorganic base materials such as board, gypsum slag board, pulp cement board, asbestos cement board, wood chip cement board, lightweight foam concrete board, glass fiber reinforced concrete board, calcium silicate board, asbestos slate board, ceramic board, etc. A cured resin sheet made of phenol resin, urea resin, unsaturated polyester resin, polyurethane resin, epoxy resin, melamine resin, or the like.

The synthetic resin sheet containing the glitter pigment is a glitter pigment, for example, a pearl pigment, a metal powder such as gold, silver, copper, brass, or Al, an aluminum hydroxide powder, or a cut piece of a synthetic resin film having a metal deposition layer. , Formed from a thermoplastic resin sheet containing a brilliant pigment that emits pearl luster or interference luster by titanium dioxide-coated mica fragments, fish scale foil, bismuth oxychloride fragments, etc. However, about 20 to 50 parts by weight of a brilliant pigment is included with respect to 100 parts by weight of the resin constituting the sheet.

The concave portion on the surface of the base material sheet for the decorative material is formed on the surface of the synthetic resin sheet serving as the base material sheet for the decorative material, or of the thermoplastic resin film or sheet serving as the surface layer of the base material sheet for the decorative material. It can be easily obtained by subjecting the surface to shaping by embossing.

The shape of the concave portion on the surface of the base material sheet for decorative material,
Fine parallel straight lines or a group of curves, in particular, a parallel wavy curve group, when the direction of the curve group is formed in a direction orthogonal to the direction of the grain pattern by the picture print pattern layer, The shine can appear very well.

In addition to the parallel straight line group, the shape of the concave portion, for example,
Sine wave, cycloid curve, elliptic function, Bessel function,
A group of curves having a constant period or an irregular period in which a plurality of arcs connected to each other are arranged in parallel with each other, for example, a shape similar to a fiber shape or a hairline shape of a wooden skin of a natural tree or the like is used.

The shape of the concave portion in the decorative material base sheet having a concave portion on the surface is such that a spatial frequency spectrum obtained by performing a Fourier transform on a cross-sectional curve in the horizontal and / or vertical direction of the decorative material base sheet becomes a spatial frequency. In the case of a 1 / f type that is inversely proportional or an array shape that approximates it, an array with a period that closely resembles the pattern of fluctuations in the human heartbeat period is obtained.

This means that the spatial frequency spectrum of
Since it can be approximated by the 1 / f type, it is an excellent cosmetic material that is very similar to natural woody texture that gives human comfort.

In addition, the concave portion having a shape of 1 / f type or an array that approximates the spatial frequency spectrum in which the spatial frequency spectrum obtained by Fourier transforming the cross-sectional curves in the horizontal and / or vertical direction of the base material sheet for the decorative material is inversely proportional to the spatial frequency is For example, only the illuminated portion of the natural wood where the grain is exposed is photographed by extracting the light by devising the lighting or the like, and the obtained photograph is subjected to a known photoengraving, or photolithography. Thus, an embossing plate in which only the illuminated portion of the natural wood has a convex shape is prepared, and the embossing process using the embossing plate is performed, thereby easily forming the embossing plate.

Further, the concave portion on the surface of the base material sheet for a decorative material may be, for example, an independent dot-shaped concave portion.

The concave portion is usually formed to have a maximum depth of about 5 to 200 μm. In particular, in FIG. 4 (1), (2), and (3), in order to sufficiently obtain a design effect by the concave portion. It is preferable that the concave portion is formed to have an opening width of about 1 to 100 μ and a depth of about 1 to 100 μ.

The concealing layer formed on the non-concave portion of the surface of the base material sheet for a decorative material is formed of, for example, a paint containing a non-brilliant pigment having high concealing performance using titanium dioxide, carbon, or the like.

In addition, the above-mentioned concealing layer is for making the concave portion exhibiting glitteriness visible from the outside, and it is necessary to have glitteriness on the surface of the decorative material base sheet having glitteriness. By forming the above-mentioned concealing layer on the non-concave portion not to be formed, the concave portion having glitter can be visually recognized.

Further, the pattern printing pattern layer applied to the decorative material of the present invention is formed as a normal pattern printing pattern layer suitable for the decorative material, and as shown by a symbol M in FIG. Is most preferably formed on the printed pattern layer.

The pattern printing pattern layer may be directly formed by general printing means, for example, printing means such as gravure, or
It may be formed as a transfer layer using a transfer sheet.

In the decorative material according to the second to fourth inventions, the transparent to translucent resin layer laminated on the surface of the decorative material base sheet fills the concave portion formed on the surface of the decorative material base sheet. Then, it is formed on the entire surface of the decorative material base sheet so as to completely cover the surface of the decorative material base sheet.

The transparent to translucent resin layer contains a thermoplastic resin, a thermosetting resin, or an ionizing radiation-curable resin as a film-forming component, to which a dye or a small amount of pigment, if necessary, And the like, for example, by a gravure coat, a roll coat, an air knife coat, a spray coat, a flow coat or the like, or a method of laminating another transparent to translucent resin film. .

When the thickness of the transparent to translucent resin layer is less than 10 μm, a sufficient three-dimensional effect cannot be obtained in the decorative material, and when the thickness exceeds 300 μm, the transparent to translucent resin layer When a pattern printing pattern layer is formed on the surface of the image, the printed pattern layer appears as if it were floating, so that the unnaturalness becomes noticeable.

Therefore, the above-mentioned transparent to translucent resin layer is 10 to 300
μ, preferably about 50 to 200 μ.

Further, in the coating agent used when forming by the coating for forming the transparent to translucent resin layer, for example, a polymerization initiator, a polymerization accelerator, Needless to say, a photopolymerization initiator, a photopolymerization accelerator, a polymerization inhibitor, a crosslinking agent, a curing agent, a solvent, a viscosity modifier and the like are appropriately added.

Representative resins used for forming the transparent to translucent resin layer are as described below.

Thermoplastic resins Ethyl cellulose, cellulose nitrate, cellulose acetate, ethyl hydroxycellulose, cellulose derivatives such as cellulose acetate propionate, styrene resins such as polystyrene, poly-α-methylstyrene, polymethyl methacrylate, polyethyl methacrylate,
Acrylic resin such as polyethyl acrylate, polybutyl acrylate, etc., polyvinyl chloride such as polyvinyl chloride, polyvinyl acetate, vinyl chloride / vinyl acetate copolymer, polyvinyl butyral, rosin, rosin modified maleic resin, rosin modified Rosin-based resins such as phenolic resin and polymerized rosin, other resins such as coumarone resin, vinyltoluene resin and polyamide resin, thermosetting resin melamine resin, diallyl phthalate resin, guanamine resin, unsaturated polyester resin, phenolic resin, urea Resin, polyurethane resin, epoxy resin, amino alkyd resin, melamine / urea resin, silicon resin, etc. Ionizing radiation-curable resin Contains a polymerizable unsaturated bond or epoxy group in the molecule represented by the compounds shown below. Prepolymer or oligomer and / or Or a reactive monomer is used,
Usually, a mixed resin of 5 to 95% by weight of the prepolymer or oligomer and 95 to 5% by weight of the reactive monomer is used.

In addition, in order to adjust the flexibility and the like of the obtained cured resin, an ionizing radiation non-curable resin with respect to the curable resin,
For example, an ionizing radiation non-curable resin such as a urethane resin, a cellulose resin, a polyester resin, an acrylic resin, and a butyral resin may be added in a range of 70% by weight or less.

Prepolymers or oligomers Unsaturated polyesters with unsaturated dicarboxylic acids and polyhydric alcohols, polyester acrylates, epoxy acrylates,
Urethane acrylate, polyether acrylate, polyol acrylate, melamine acrylate, polyester methacrylate, polyether methacrylate,
Acrylates and methacrylates such as polyol methacrylate, melamine methacrylate, etc., reactive monomers styrene, α-methylstyrene, etc., methyl methacrylate, ethyl methacrylate, propyl methacrylate, phenyl methacrylate, ethyl acrylate, butyl acrylate, 2- (N, N-diethylamino) ethyl acrylate, such as 2-ethylhexyl acrylate and methoxyethyl acrylate;
2- (N, N-dimethylamino) ethyl methacrylate,
2- (N, N-dibenzylamino) ethyl acrylate,
(N, N-diethylamino) methyl methacrylate, 2- (N, N-diethylamino) propyl acrylate, etc., unsaturated carboxylic amides such as acrylamide and methacrylamide, ethylene glycol diacrylate, propylene glycol diacrylate, neopentyl Diacrylates such as glycol diacrylate, diethylene glycol diacrylate, triethylene glycol diacrylate, dipropylene glycol diacrylate, propylene glycol dimethacrylate, diethylene glycol dimethacrylate, trimethylolpropane trithioglycolate, trimethylolpropane trithiopropionate Polythiols having two or more thiol groups in a molecule such as pentaerythritol tetrathioglycol, In the decorative material of the fourth invention, a clear sheet layer is further laminated on the surface of the transparent to translucent resin layer.

The clear sheet layer is formed by a usual dry lamination method, heat sealing method, coating method, or the like, and is formed as a transparent to translucent resin layer having a thickness of about 10 to 300 μm.

The gloss adjusting resin layer in the cosmetic material of the sixth invention is a matting resin layer containing a matting agent such as mica, silica, alumina, calcium carbonate, diatomaceous earth, silica sand, and white balloon. Or a matting resin layer containing no matting agent at all, or a combination of a matting resin layer and the matting resin layer.

In particular, when the gloss adjusting resin layer is formed by a combination of the matting resin layer and the glazing resin layer, one is solidly formed and the other is attached to the above-mentioned transparent to translucent resin layer. Formed in synchronization with the pattern printing pattern layer,
For example, when a woodgrain pattern printing pattern layer is provided for the transparent to translucent resin layer, a matte resin layer is formed solid on the pattern printing pattern layer surface, and a glossy resin layer is formed thereon. If the varnishing resin layer is formed so as to be synchronized with the wood grain pattern autumn material portion, the matting resin layer is synchronized with the spring material portion, and the autumn material portion is synchronized with the glazing resin layer. So
The decorative material of the present invention is given a depth very similar to natural wood.

In forming the gloss adjusting resin layer, for example,
A coating agent using as a vehicle a simple substance or a mixture of polyurethane, acrylic resin, amino resin, nitrocellulose, alkyd resin, polyester, polyvinyl butyral, melamine resin, cellulose acetate, polyvinyl chloride, polyvinyl acetate, polystyrene, and polyvinyl alcohol; For example, gravure coat, roll coat,
Coating means such as an air knife coat, a spray coat, and a flow coat are used.

[Example] Hereinafter, a specific configuration of the decorative material of the present invention will be described based on a production example.

Example 1 In FIG. 1, a mixture in which 20 parts by weight of a brilliant pigment was added to 100 parts by weight of a high-density polyethylene resin (Mitsui Polychemical) on the surface of thin paper 2 having a basis weight of 40 g / m ² was extruded. ~ John coat to form a glittering resin layer 3 having a thickness of 40μ to obtain a base material sheet for a decorative material comprising a composite sheet indicated by reference numeral 4.

The surface of the polyethylene resin layer 3 of the base material sheet 4 for the decorative material is heated to 120 ° C. to soften the polyethylene resin layer 3 and then passed through an embossing machine provided with an embossing roll (roll temperature: 20 ° C.). On the surface of the resin layer 3, a concave portion indicated by reference numeral 5,5 ° was formed.

The embossing roll is a shining part of cedar straight-grained wood (the minimum grain period in the width direction is 1 mm, the maximum is 20 mm, and the spatial frequency spectrum in the width direction has an approximately 1 / f-type distribution). Was obtained by performing photolithography based on this photo, taking a photo extracted by devising the lighting, and the embossing roll's projections corresponded to the shining part of the cedar straight grain material It is formed so that it does.

Next, on the surface of the polyethylene resin layer 3, an ink obtained by dispersing a brown pigment composed of titanium dioxide, carbon black, red iron oxide, and graphite in chlorinated polyethylene was applied by gravure printing only to the non-concave portions of the polyethylene resin layer 3. And partially forming a concealing layer indicated by reference numeral 6, and further applying a transparent resin coating agent (nitrocellulose type, SA medium: Showa Ink) by a gravure coating method to obtain a 100 μm thick film. The transparent resin layer 7 was formed.

Subsequently, a wood-grained pattern printing pattern layer m, m ‥... Is formed on the surface of the transparent resin layer 7 using a gravure ink (nitrocellulose-based, SAM: Showa Ink), as shown in FIG. Thus, a decorative material, which is indicated by reference numeral 1 and is a product of one embodiment of the present invention, was obtained.

Example 2 A matte having a thickness of 5 μm was formed on the m, m ‥... Surface of the decorative pattern 1 of the decorative material 1 obtained in Example 1 with an acrylic polyol-based resin containing a matting agent (silica). The resin layer 8 is solidly formed, and a matting agent is entirely applied to only the portion of the matte resin layer 8 which is synchronized with the autumn material portion of the wood-grained pattern printing pattern layer m, m ‥. A 5 μm thick glazing resin layer 9, 9 ‥‥ made of an acrylic polyol-based resin not containing was formed to obtain a cosmetic material, which is indicated by reference numeral 10 in FIG. Was.

Example 3 In FIG. 3, a thickness of 0.1 m was obtained by using a mixture in which 30 parts by weight of a bright pigment was added to 100 parts by weight of a vinyl chloride resin.
The base material sheet 11 for decorative material made of an extruded sheet of m
After softening by heating to 20 ° C, it is passed through an embossing machine equipped with an embossing roll (roll temperature 20 ° C) similar to the skin of natural wood,
Concave portions indicated by 12,12 mm were formed.

Next, on the embossed surface of the base material sheet 11 for cosmetic material, an ink obtained by dispersing a brown pigment composed of titanium dioxide, carbon black, red iron oxide, and graphite in chlorinated polyethylene was applied by gravure printing to the cosmetic material. Base sheet 11
Is applied only to the non-concave portions of the surface of the above to partially form a concealing layer indicated by reference numeral 13, and then a transparent resin coating agent (Chem. X medium: Showa Ink) is applied by a gravure coating method. Then, a transparent resin layer 14 having a thickness of 80 μm in which the concave portions 12, 12, are sufficiently buried was formed.

Subsequently, a back-printed clear sheet 15 having a wood-grain pattern printing pattern layer m1, m1 ‥‥ with a gravure ink (Chem. X: Showa Ink) on the back surface of a 0.1 mm-thick vinyl chloride resin film. The print pattern layer of the clear sheet 15
m1, m1 ‥‥ is in contact with the transparent resin layer 14,
By doubling the two, a cosmetic material denoted by reference numeral 16, which is a product of one embodiment of the present invention, was obtained.

[Function and Effect of the Invention] The decorative material of the present invention is a decorative material base sheet made of a synthetic resin sheet containing a glittering pigment having a concave portion on the surface, and the decorative material base material In the configuration of the concealing layer formed in the non-concave portion on the surface of the sheet and the pattern printing pattern layer, the collection of the glittering surface reflected light by the concave mirror effect in the glittering concave portion in the decorative material base sheet. Because the light action and the action with the concealing layer are synergistically played, depending on the angle at which the cosmetic material is viewed or the incident angle of the illumination light,
The gloss developed from the brilliant pigment in the base material sheet for a cosmetic material changes, and an excellent action in design is exhibited.

Further, the decorative material of the second to fourth aspects of the present invention is excellent in a three-dimensional effect because the effect of the glittering concave portion using the concealing layer in the decorative material base sheet acts by the interior of the decorative material. The deep shine that has the effect which is performed is expressed.

Furthermore, since the decorative material of the fourth aspect of the present invention is formed in a state where the pattern printing pattern layer is sandwiched between the transparent to translucent resin layers, for a person who views the decorative material,
A state in which the shadow of the pattern printing pattern layer is projected on the decorative material base sheet is observed, and it moves due to parallax.

For this reason, in the decorative material of the fourth aspect of the present invention, the movement of glitter and the movement of the shadow of the pattern printing pattern layer are observed depending on the angle at which the decorative material is viewed, and the movement of shine on the surface of the wood appears, In particular, by using the decorative materials according to the sixth and seventh aspects of the present invention, a decorative material very similar to a decorative material made of natural wood can be obtained.

In the decorative material according to the sixth aspect of the present invention, a decorative material that is very similar to a decorative material made of natural wood or the like can be obtained by the gloss adjusting layer, and the decorative material is excellent in fastness.

In the decorative material according to the eighth aspect, the repetitive arrangement of the glittering resin layers is such that a spatial frequency spectrum obtained by performing a Fourier transform on a cross-sectional curve in a horizontal and / or a vertical direction of the decorative material base sheet is converted into a spatial frequency. Since it is an inversely proportional 1 / f type or an array that approximates it, it has a repetitive array that closely resembles the pattern of fluctuations of the human heart cycle,
In addition, since the spatial frequency spectrum of the natural wood grain can be approximated by the 1 / f type, it is an excellent decorative material that is very similar to the natural wood texture that gives human beings comfort.

[Brief description of the drawings]

FIGS. 1 to 3 are model cut end views showing another embodiment of the decorative material of the present invention, and FIG. 4 (1) is a concave shape in the decorative material base sheet of the decorative material of the present invention. Part 1
FIG. 4 (2) is an enlarged view of a part of FIG. 4 (1), FIG. 4 (3) is a sectional view of FIG. 4 (2), and FIG. FIG. 5 is a plan view showing a state in which a pattern printing pattern layer is provided on the decorative material base sheet shown in FIG. 4 (1). DESCRIPTION OF SYMBOLS 1 ... Cosmetic material 2 ... Thin paper in the base material sheet 4 for cosmetics 3 ...... Polyethylene resin layer containing a glitter pigment in the base material sheet 4 for cosmetics 4 ... Base material sheet for cosmetics 5: concave portion on the surface of base material sheet 4 for decorative material 6: concealing layer formed partially on the surface of base material sheet 4 for decorative material 7: transparent to translucent resin layer 8 ...... Matting resin layer of gloss adjusting resin layer 9 ... Glazing resin layer of gloss adjusting resin layer 10 Cosmetic material having gloss adjusting resin layer m, m ... Pattern printing pattern layer .

Claims (8)

(57) [Claims] 1. A decorative material base sheet having a concave portion on the surface, a concealing layer formed on a non-concave portion of the surface of the decorative material base sheet, and a surface or concealment of the decorative material base sheet. A decorative material comprising a pattern printing pattern layer provided on the surface of the layer, wherein the decorative material base sheet is formed of a synthetic resin sheet containing a glitter pigment. 2. A base material sheet for a decorative material having a concave portion on its surface, a concealing layer formed on a non-concave portion on the surface of the base material sheet for a decorative material, A transparent to translucent resin layer laminated so as to cover the concealing layer, and formed between the surface of the decorative material base sheet or the surface of the concealing layer and the back of the transparent to translucent resin layer. Consisting of a pattern printing pattern layer, the decorative material base sheet,
A decorative material formed of a synthetic resin sheet containing a glitter pigment. 3. A base material sheet having a concave portion on its surface, a concealing layer formed on a non-concave portion of the surface of the base material sheet for a decorative material, A transparent to translucent resin layer laminated so as to cover the concealing layer, and a pattern printing pattern layer formed on the surface of the transparent to translucent resin layer, wherein the decorative material base sheet is ,
A decorative material formed of a synthetic resin sheet containing a glitter pigment. 4. A base material sheet for a decorative material having a concave portion on its surface, a concealing layer formed on a non-concave portion on the surface of the base material sheet for a decorative material, A transparent to translucent resin layer laminated so as to cover the concealing layer, a clear sheet layer laminated on the surface of the transparent to translucent resin layer, a surface of the transparent to translucent resin layer and a clear sheet A decorative material comprising a pattern print pattern layer formed between the layer and the back surface of the layer, wherein the decorative material base sheet is formed of a synthetic resin sheet containing a glitter pigment. 5. The method according to claim 2, wherein the transparent to translucent resin layer laminated on the surface of the base material sheet for a decorative material has a thickness of 10 to 300 μm. Cosmetic materials. 6. A surface resin layer comprising a gloss adjusting resin layer is laminated on the surface of the decorative material according to any one of claims 1 to 5. Cosmetic materials. 7. The method according to claim 1, wherein the shape of the concave portion in the base material sheet having a concave portion on the surface is similar to a fiber shape or a hairline shape of the skin of a natural tree. The cosmetic material according to any one of the above items. 8. The shape of the concave portion in the base material sheet having a concave portion on the surface is determined by a spatial frequency obtained by performing a Fourier transform on a cross-sectional curve in the horizontal and / or vertical direction of the base material sheet for the decorative material. The cosmetic material according to any one of claims 1 to 7, wherein the spectrum has a 1 / f type that is inversely proportional to a spatial frequency or an array similar thereto.