JPS61293854A - Decorative material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

■RiΩ Wataru Shun

[Industrial application field]

The present invention relates to a decorative material with a rich natural feel.

[Conventional technology]

In the production of decorative materials, there is a method of using a combination of matte ink and gloss ink to create a three-dimensional feel, but the product still lacks three-dimensional depth. In order to create a three-dimensional depth, there is a method of printing a pattern on a base material, forming a transparent synthetic resin layer, and then applying embossing. Although it can give a three-dimensional effect, the embossing determines the gloss.
It is difficult to obtain the desired design feel. [Problems to be Solved by the Invention] An object of the present invention is to provide a decorative material that has an improved material feel by faithfully copying minute irregularities on the surface and gives a feel similar to natural products. "Hininui"

[Means to solve the problem]

The decorative material 1 of the present invention basically has the following features as shown in FIG.
It is characterized in that a synthetic resin layer 3, a concealing solid printing layer 4, a pattern printing layer 5, and at least one gloss adjustment layer 6 are sequentially laminated on a base material 2, and an embossing layer 7 is applied thereto. Typical base materials are various types of paper, such as tissue paper, bleached or unbleached kraft paper, high-quality paper, reinforced paper (latex-impregnated paper), and mixed paper mixed with synthetic resin. , titanium paper, linder paper, paperboard, gypsum board paper, etc. Plastic film can also be used. Examples include films of plastics such as polyethylene, polypropylene, polyvinyl chloride, polyvinyl alcohol, polyethylene terephthalate, polycarbonate, nylon, polystyrene, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, and ionomer. In addition, wood base materials such as wood, plywood, and particle board, gypsum base materials such as gypsum board and gypsum slag board, fiber cement board such as pulp cement board, asbestos cement board, and wood chip cement board, GRC, concrete, and iron. Metal foils or sheets of , aluminum, copper, etc. can also be used. Of course, base materials made of composites of the various materials listed above can also be used. The synthetic resin layer on the substrate can be made of polyolefin resins such as polyethylene, polypropylene, ethylene-vinyl acetate copolymers, ionomers, other thermoplastic resins such as saturated polyesters and polyvinyl chloride, and unsaturated polyesters. A thermosetting resin selected from thermosetting resins such as resins and polyurethane resins may be used. To form a synthetic resin layer, a coating method such as extrusion, T-die, roll coating, or gravure coating is selected depending on the physical properties of the synthetic resin used.
In order to achieve the purpose of creating depth through embossing, the synthetic resin layer needs to have a thickness of 5 microns or more, preferably 20 microns or more. The thicker the thickness, the greater the effect, but
Even if it exceeds 5711#l, no further improvement in the effect can be expected and the required amount of material becomes excessive, which is not preferable.
When using a polyolefin resin with poor adhesion as the synthetic resin layer, it is preferable to employ an extrusion coating method, and it is also preferable to coat the layer with an anchoring agent such as alkyl titanate or polyethyleneimine prior to coating. Similarly, the synthetic resin layer may also be treated to improve adhesion. For example, when a synthetic resin layer is formed from a polyolefin resin, it is desirable to perform corona discharge treatment to make the surface of the synthetic resin layer have a "wetting index" of 38 dVne/ci or more, thereby improving the adhesion of printing ink. The decorative material of the present invention is generally manufactured by sequentially laminating each layer on a base material. The layer and the gloss adjustment layer may be laminated in sequence at the same time as the synthetic resin layer is formed, or the synthetic resin may be laminated on either one of the layers, and the two may be crimped together. It is also possible to adopt As the printing method, gravure printing is advantageous when the base material is a flexible sheet, but other general printing methods can also be used. In addition, when the base material is plate-shaped, it is customary to apply silk screen printing or gravure offset printing, but other printing methods may also be used. The coating composition is prepared by kneading a vehicle with a coloring agent such as a pigment or dye, a plasticizer, a stabilizer, other additives, a solvent or a diluent. Suitable materials for the vehicle include ethyl cellulose, ethyl cellulose, ethyl cellulose, etc. Cellulose derivatives such as hydroxyethyl cellulose, cellulose acetate propionate, and cellulose acetate; styrene resins and styrene copolymer resins such as polystyrene and poly-alpha methylstyrene; acrylics such as polyethyl methacrylate, polyethyl acrylate, and polyacryl butyl; Single or copolymer resins of methacrylic acid esters, rosin, rosin-modified maleic acid resins, rosin-modified phenol resins, polymerized rosins, etc., ginsin ester resins, polyvinyl acetate, coumaron resins, vinyl toluene resins, polyvinyl chloride, polyesters, These are polyurethane, butyral resin, etc. Two or more of these may be used in combination. For solid printing, use an inorganic pigment such as titanium dioxide that has excellent hiding performance, and for pattern printing, use appropriate coloring. The gloss adjustment layer protects the surface of the decorative paper, prevents the pattern printing layer from disappearing, and gives the surface of the decorative paper a desirable gloss.The gloss adjustment layer is coated with a paint using an appropriate vehicle. It can be formed by coating.Vehicles include polyurethane, acrylic resin, amine resin, nitrocellulose, alkyd resin, polyester, polyvinyl butyral, melamine resin, cellulose acetate, polyvinyl chloride, polyvinyl acetate, polystyrene, polyvinyl alcohol, etc. Resins can be used alone or in combination. Usually, a suitable amount of a matting agent is dispersed in the paint that forms the gloss adjustment layer to give the desired degree of matting, but the coating does not contain any matting agent at all. Gloss type paints may also be used. Possible matting agents include mica, silica, alumina, calcium carbonate, diatomaceous earth, silica sand, and inorganic hollow bodies such as shirasu balloons. Gloss adjustment layer When forming the pattern uniformly on the pattern printing layer, methods such as gravure coating, roll coating, air knife coating, spray coating, flow coating, etc. may be used; when forming it in a pattern, forming the pattern printing layer. The same printing method as that used for printing may be used. The gloss adjustment layer is
It can also be formed by combining two or more paints with a matte degree. In this case, in addition to providing a gloss layer on a matte layer, a matte layer may be provided on top of a gloss layer, or a matte layer and a gloss layer may be separately provided on the same surface. Alternatively, either the matte layer or the glossy layer may be provided solidly and the other layer may be provided in a pattern. When the gloss adjustment layer is provided in a pattern that matches the pattern underneath, the visual three-dimensional effect is increased. If desired, a glittering colored layer is provided on the concealing solid printing layer or the pattern printing layer. As a result, the shine of the wood, the luster of the leather,
The brilliance of stones or the luster of cloth are well reproduced. Examples of pigments that form the glitter colored layer are as follows. (a) Pearl pigments, specifically those made by crushing the inner parts of shells or true spheres, mica, mica fine particles baked with TiO2 or iron oxide, (b) Metal powders, specifically (c) Fine particles of copper, aluminum, brass, bronze, gold, silver, etc., preferably 1 to 120 microns; (c) Fragments of a plastic film attached to a polyethylene terephthalate film, such as the above metals, usually aluminum. One is vapor-deposited and crushed (silver powder), and the other is vapor-deposited and then coated with transparent yellow paint and crushed (all-color powder). These glitter pigments are selected depending on the gloss, luster, and brilliance of the object to be reproduced, and two or more kinds can be used in combination as necessary. Embossing is often used to express the conduit grooves in the wood grain, to reproduce the glossy condition of a painted board, or to combine these. If you want to express the feel of wood fibers, it is best to use hairline embossing along the direction of the wood grain. In order to express the texture of natural wood with hairline embossing, the hairline pitch should be set to 30.
It is preferable to make it 0μ or less. It goes without saying that hairline-like embossing and conduit groove-like embossing can coexist; for example, embossing that expresses the feeling of "Uzukuri", mirror-like embossing to create a shine, and embossing that eliminates shine. Materials such as those with a satin finish are suitable when printed with wood grain patterns. If you want to express the feel of leather, a material that imitates the roughness of the surface of the skin, a satin finish, or a surface that is almost mirror-like is suitable. Those with a mirror surface are suitable for imitating unevenness and cracks, and for expressing polished stones. In the case of cloth, plain weave, diagonal weave, satin weave, or a combination of these, with uneven texture, is suitable.

[For use]

The wood grain decorative material shown in FIG.
At the same time, the thickness of the synthetic resin layer 3 located between the print layer and the print layer is partially changed, and at the same time, the printed layer is also made uneven. Therefore, the depth of the embossing can be made deeper than before, and since the printing layer itself is embossed, it has a substantial feel similar to that of a natural product. Furthermore, the surface is adjusted to a desirable gloss with a gloss adjustment layer, which enhances the sense of substance. When a glittering colored layer is provided, the luster of natural products can be reproduced even better. The wood-grained decorative material shown in FIG. 2 is a preferred embodiment of the present invention, and since the gloss is partially changed, a more substantial feeling can be obtained. That is, on the gloss adjustment layer 6, another gloss adjustment layer 8 is provided. For example, if layer 6 is a matte layer and layer 8 is a glossy layer, and there is a wood grain pattern,
When a gloss layer is applied to the area corresponding to the fall wood of the wood grain,
Improved sense of reality.

【Example】

A concealing solid printing ink having the following formulation was prepared. (All parts are by weight.) Nitrocellulose resin 20 parts Titanium dioxide 60 parts Ethyl acetate
8 parts toluene
8 parts Isopropyl alcohol 4 parts Total 100 parts A bright coloring ink having the following formulation was prepared. Nitrocellulose resin 30 parts Pearl pigment 20 parts Dioctyl phthalate 5 parts Fine powder anhydrous silicon M
1 part ethyl acetate 18 parts toluene 18 parts isopropyl alcohol 8 parts total 100 parts A pattern printing ink having the following composition was prepared. Nitrocellulose resin 15 parts Pigment
5 parts ethyl acetate
8 parts toluene
8 parts isopropyl alcohol -4”lS
A total of 40 parts of a matting varnish having the following formulation was prepared. Acrylic polyol resin 35 parts silica
10 parts slip agent
1 part ethyl acetate
44 parts Toluene 10 parts Total 100 parts A gloss varnish having the following composition was prepared. Acrylic polyol resin 50 parts Slip agent 2 parts Ethyl acetate
40 parts toluene
8 parts total 100 parts Next, high-density polyethylene "Mirason 14" (Mitsui Polychemicals) was coated to a thickness of 50 μm on thin paper having a basis weight of 40 q/rd. A base material was prepared by subjecting the surface of the polyethylene layer to corona discharge treatment so that the "wetting index" was 38 dyne/cn or more. Gravure solid printing was performed on the corona discharge treated surface of this base material using the above concealing solid printing ink. Then, a solid gravure print was made using the above-mentioned glitter coloring ink.Next, a cedar grain pattern was gravure-printed using the above-mentioned pattern printing ink, and the above-mentioned matte varnish was applied on top of that. After performing gravure printing to form a matte layer on the entire surface, using the above-mentioned glossing varnish, gravure printing was performed on the portion of the cedar grain pattern corresponding to the autumn wood part to form a glossy layer. The printed paper thus obtained was heated to 120°C to soften the polyethylene layer, and the surface temperature was 20°C and a hairline embossing roll (widthwise pitch 100-200μ) was created.
A decorative material was obtained by applying the embossing machine to an embossing machine equipped with a cedar grain pattern and embossing the hair lines so that they matched the direction of the fibers in the grain pattern of the cedar (the direction of growth of the tree). The resulting decorative material has a hairline-like embossment on the surface that expresses the fiber quality of the wood, and has a matte layer on the surface that matches the autumn wood part of the wood grain, so it looks like cedar. of"
The partial luster brought about by the "Uzukuri" process is expressed. The luster of natural wood is also reproduced using glitter ink. These effects, combined with the deep embossing, resulted in a highly decorative decorative material with an appearance that closely resembled that of natural cedar board with undulations. Effects of the Invention The decorative material of the present invention has a sense of depth and is excellent in design. In particular, products with a wood grain pattern, which is a typical embodiment, are embossed in the form of hair lines, which is a preferred embodiment, to express the fibers of the wood and create a substantial feel similar to that of natural products. The gloss-adjusting layer and glitter colored layer promote these functions.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view showing a basic aspect of the decorative material of the present invention. FIG. 2 is a similar sectional view showing a preferred embodiment of the decorative material of the present invention. 1... Decorative material 2... Base material 3... Synthetic resin layer 4... Concealing solid printing layer 5... Pattern printing layer 6.8... Gloss adjustment layer 7... Embossing

Claims (4)

[Claims] (1) A decorative material characterized in that a synthetic resin layer, a concealing solid printing layer, a pattern printing layer and a gloss adjustment layer are sequentially laminated on a base material and embossed. (2) The gloss adjustment layer consists of two layers, one is a matte layer,
The decorative material according to claim 1, wherein the other layer is a gloss layer. (3) The decorative material according to claim 1, wherein the embossing has a hairline shape with a pitch of 300 μm or less. (4) The decorative material according to claim 1, wherein a glittering colored layer is provided on the concealing solid printing layer or the pattern printing layer.