JP3007400B2 - Cosmetic material - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a decorative material, and more particularly to a decorative material having a glittering effect, a three-dimensional depth feeling, and an effect of moving light, which are close to those of a wood grain material.

[Conventional technology]

BACKGROUND ART Conventionally, plain and non-patterned decorative materials for indoor interiors are widely used, but various patterns are applied by printing or the like to further enhance decorativeness. In particular, in the case of a wooden house, a decorative material having a grain pattern close to a natural tree is important.

In order to express the shine of natural wood, a grain pattern layer has been conventionally provided using a brilliant ink.

[Problems to be solved by the invention]

However, in the above-mentioned conventional method, it is difficult to express the movement of shimmer, and a decorative material having a three-dimensional depth feeling of a natural tree cannot be obtained.

An object of the present invention is to solve such a conventional problem and to provide a decorative material having a feeling close to that of natural wood.

[Means for solving the problem]

In order to achieve the above object, the present inventors have conducted intensive studies, and as a result, a specific base sheet and a top sheet are laminated and integrated by a specific means, thereby exhibiting movement of illumination, a three-dimensional feeling and a sense of depth. The inventors have found that the present invention can be performed and completed the present invention.

That is, the present invention is a transparent top sheet layer provided with a printed pattern layer, and a base sheet layer made of a colored sheet kneaded with a brilliant pigment or a brilliant resin solid-colored with a brilliant resin having an uneven surface, The printed surface of the top sheet layer and the uneven surface of the base sheet are laminated and integrated via a transparent resin layer having a thickness that fills the unevenness, and the spatial frequency spectrum of the cross-sectional shape of the unevenness is “spectrum”. A decorative material characterized in that the intensity is an l / f type whose intensity is inversely proportional to the frequency f, or is close to it. It is particularly preferable that the l / f-shaped unevenness is a fine unevenness of a wooden skin, a fiber shape and / or a hairline shape formed by molding or photoengraving from natural wood.

FIG. 1 is a sectional view of an example of the decorative material of the present invention. In FIG. 1, a print pattern layer 2 is provided on a transparent top layer 1. The base sheet is composed of a colored sheet 3 and a solid printed layer 4 of a brilliant resin. Instead of the colored sheet 3 and the solid printed layer 4 of the glitter resin, a glitter pigment-kneaded sheet may be used as the base sheet.

The surface of the base sheet is provided with an uneven shape 5,
The top sheet and the base sheet are laminated and integrated via the transparent resin layer 6 having a thickness that fills the irregularities.

As the base sheet (hereinafter, also referred to as base sheet) in the present invention, those commonly used for decorative materials,
For example, known papers and colored plastic films can be used, but heat generated from colored polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyolefin resin such as ionomer, saturated polyester, polyvinyl chloride, etc. It is desirable to use a composite of a thermoplastic film and process the irregularities on the thermoplastic film side. The glitter pigment-kneaded sheet as a base sheet is, for example, aluminum powder, gold powder, metal powder such as silver powder,
One or more of brilliant pigments such as titanium oxide, mica, and aluminum hydroxide are appropriately combined, kneaded into the above resin, colored, and formed into a sheet. When using a colored sheet having a solid printed layer of a brilliant resin as the base sheet, the brilliant resin may be a mixture of one or more of the above brilliant pigments with a known printing ink. it can. In that case, a solid printing layer of a glittering resin can be provided by any printing method.

In the decorative material of the present invention, a normal embossing method can be employed to provide the unevenness on the surface of the base sheet. It is preferable to use a resin plate molded from the surface of the raw wood or an electroformed embossed plate made from the resin plate.
However, it is also possible to use a plate obtained by processing a pattern obtained by photographing the illuminated part of a raw wood by corrosion. Other preferable uneven shapes include groove-like unevenness of a hairline, a line-shaped embossed parallel straight line group, or a parallel wavy curve group composed of a sine curve, a Bessel function curve, a cycloid curve, an elliptic function curve and the like. (In a closed curve area, a group of uneven shapes including the parallel straight line group or the curve group, and the angle formed by the directions of the adjacent straight line group or the curve group via the boundary between any two areas is the total. And different shapes may be used). Further, for example, design processing may be performed by CAD: CAM so that the spatial frequency spectrum of the cross-sectional curve as described in JP-A-2-41500 becomes an l / f type spectrum inversely proportional to the frequency f. Since the unevenness of the actual grain pattern is spectrally included in the shape of the 1 / f type spectrum, it is particularly preferable to reproduce a natural tree.

As the top sheet, a transparent one, preferably a transparent one in the base sheet, is used. The transparent top sheet is provided with a printed picture layer by a normal printing method.

The base sheet and the top sheet are laminated and integrated via a transparent resin layer having a thickness that fills the unevenness so that the former uneven surface and the latter printed surface match. As the transparent resin layer, a known printing ink vehicle can be used. It is preferable that the thickness of the transparent resin layer is such that the unevenness is completely filled.

As a lamination method for laminating and integrating in the present invention, a known method such as dry lamination or heat lamination can be used. The transparent resin layer can be used for lamination in the form of a sheet or film, or the transparent resin may be applied in the form of a coating film on the printing surface of the top sheet or the uneven surface of the base sheet.

In particular, as a preferred embodiment of laminating the colored sheet while shaping the unevenness on the surface of the glittering sheet, there is a method of laminating both by a so-called double ring embossing method.

〔Example〕

Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited thereto.

Example 1 Colored polyvinyl chloride film (manufactured by Riken Vinyl Co., Ltd.)
On a surface having a thickness of 0.1 m / m), solid printing was performed using a glittering ink (manufactured by Showa Ink, Chemical Co., Pearl, using titanium dioxide-coated mica as a glittering pigment). This solid printing sheet
Heat to 120 ° C to soften the resin, and roll surface temperature of 20 ° C by an embossing machine equipped with a natural wood-like embossing roll
To give a base sheet having irregularities on the surface. The base sheet was coated on the uneven surface with a transparent resin (Chemical medium, manufactured by Showa Ink) by a gravure coating method in such an amount that the unevenness was buried.

Transparent polyvinyl chloride film (manufactured by Riken, thickness 0.1m /
m) on the surface of gravure ink (Chem. ×, Showa Ink)
Was used to print a woodgrain pattern.

The printing surface of the woodgrain pattern printing sheet and the gravure coated surface of the base sheet obtained earlier were combined, and both sheets were laminated by a dry lamination method.

The decorative material obtained in this way had a movement of shining, a feeling of depth and a feeling of fiber of the skin of a natural tree.

Example 2 Cosmetic treatment was performed in the same manner as in Example 1 except that irregularities were formed on the base sheet using an electroformed embossing plate roll molded from irregularity base paper prepared by the method described in JP-A-2-41500. Materials were created.

As a result, a cosmetic material was obtained in which a change in the shape of the unevenness and a change in the shadow gave a comfortable feeling.

Example 3 A flame retardant backing paper for wallpaper of 70 g / m ² (Kojin, WK-70NRD) as a base sheet was coated with polyvinyl chloride plastisol (addition of 35 phr of titanium dioxide-coated mica, plasticizer amount of 70 phr). The gel was heated at 195 ° C. for 60 seconds to produce a raw material for vinyl wallpaper.

Thereafter, in the same manner as in Example 1, the embossing of wood texture, coating of a transparent resin layer, wood grain pattern printing, and lamination were performed.

〔The invention's effect〕

Since the present invention is configured as described above,
Because it can be approximated to the shape of the fractured surface of the cell wall of the cut surface of the natural tree, the brightness of the sheet moves depending on the angle due to the concave mirror effect of the glittering pigment or glittering resin on the base sheet surface,
In addition, it is possible to provide a decorative sheet having a three-dimensional feeling and a deep feeling. Further, in a preferred embodiment, when the unevenness of the cross section where the spatial frequency spectrum becomes l / f type is formed, the distribution of the reflection part of light rays approximates to a natural tree, and effects such as reproduction of light closer to a natural tree are produced. It is extremely useful industrially.

[Brief description of the drawings]

 FIG. 1 is a sectional view showing an example of the decorative material of the present invention. DESCRIPTION OF SYMBOLS 1 ... Transparent top sheet 2 ... Printed pattern layer 3 ... Colored sheet 4 ... Bright resin printing layer 5 ... Unevenness 6 ... Transparent resin layer

Claims (2)

(57) [Claims] 1. A transparent top sheet layer provided with a printed picture layer, and a base sheet layer comprising a glitter pigment kneaded sheet having an uneven surface and a colored sheet solid-printed with a glitter resin. The printed surface of the top sheet layer and the uneven surface of the base sheet are laminated and integrated via a transparent resin layer having a thickness that suppresses the unevenness, and the spatial frequency spectrum of the cross-sectional shape of the unevenness is “ A cosmetic material characterized by being of the "l / f type, whose spectral intensity is inversely proportional to the frequency f", or an approximation thereof. 2. The unevenness whose spatial frequency spectrum is of the l / f type is fine unevenness of a skin, a fiber shape and / or a hairline shape formed by molding or photoengraving from natural wood. Item 4. The cosmetic material according to Item 1.