JPH01314168A - Decorative material and manufacture thereof - Google Patents

Abstract

PURPOSE:To obtain a decorative material having a high-grade feeling at low cost by filling the recessed parts of an embossed pattern with color ink. CONSTITUTION:As a paper like base material, tissue paper is used representatively and a synthetic resin layer 2 is provided to the base material 1 and a grain pattern is applied to said layer 2 by printing and, thereafter, emboss processing is applied to impart recessed and protruding parts to the synthetic resin layer 2 and color ink 4 is applied to perform wiping. By this method, the ink is left in the recessed parts 5 of the embossed pattern. The necessary thickness of the synthetic resin layer is 5mum or more in order to achieve a purpose for imparting depth by embossing. The ink or paint composition to be used is prepared by kneading a colorant being pigment or dye, a plasticizer, a stabilizer, other additives and a solvent or diluent with vehicle and the filling of the recessed parts is performed by a wiping method using a doctor blade or roll.

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a decorative material having a wood grain pattern and a method for producing the same. [Prior Art] Various decorative materials with wood grain patterns are used for wall materials, furniture, etc. of houses. For example, a sheet of tissue paper with a wood grain pattern printed in the usual way and a coating of aminoalkyd or urethane resin applied to the surface to protect the surface, a polyvinyl chloride film or a sheet of tissue paper with a wood grain pattern printed on it and a transparent polyvinyl chloride film. These include sheets with laminated films, sheets with wood grain patterns printed on a paper base material, and sheets laminated with polyester films. Although these decorative materials have a wood grain pattern, their texture is different from that of real wood, giving them the impression of imitations. Trends in demand show that luxury products are preferred, and products that look more and more like real wood are desired.

[Problem to be solved by the invention]

An object of the present invention is to provide a decorative material with a wood grain pattern that gives a texture close to that of real wood.

[Means to solve the problem]

The decorative material of the present invention basically has a synthetic resin layer (2) embossed on a base material (1) and a printed layer (3) with a wood grain pattern, as shown in FIG. The recessed portion of the embossment is filled with colored ink (4). In a preferred embodiment, as shown in FIG. 2, a pattern printing layer or a concealing solid printing layer is provided with a concealing solid printing layer (6) and a gloss adjustment layer (7) that also serves as surface protection on the surface of the synthetic resin layer. By providing a glittering colored layer on top, a decorative material with a texture roughly similar to that of wood can be obtained. As the paper base material, thin paper is typically used. In addition, paper sheets such as bleached or unbleached kraft paper, high-quality paper, latex-impregnated paper, mixed paper containing plastic fibers, titanium paper, linter paper, paperboard, and gypsum board paper can be used. As shown in Fig. 3, the method for producing a decorative material of the present invention is to provide a synthetic resin layer (2) on a base material (1), print a wood grain pattern (3), and then emboss it. By giving unevenness to the synthetic resin layer as shown in Figure 4 and applying colored ink (4) and wiping as shown in Figure 5, no ink remains in the recesses (5) of the embossing. Become. In carrying out the above method, the base material and a gloss adjustment layer, a pattern printing layer, and a concealing solid printing layer are laminated in sequence on a suitable releasable base material, and are laminated at the same time as the synthetic resin layer is formed. Alternatively, it is also possible to adopt a method in which a synthetic resin is laminated on either one and then the two are crimped. The synthetic resin layer provided on the base material is typically formed of polyolefin resin such as polyethylene, but other materials selected from thermoplastic resins and thermosetting resins may also be used. For forming the synthetic resin layer, extrusion or other coating means are selected depending on the physical properties of the synthetic resin used. The thickness of the synthetic resin layer needs to be 5μ or more in order to achieve the purpose of creating depth by embossing, and preferably 20μ or more and 5#1I11 or less. The ink or coating composition for forming the woodgrain pattern printing layer and the concealing solid printing layer provided as necessary includes a vehicle, a colorant such as a pigment or dye, a plasticizer, a stabilizer,
A material obtained by kneading other additives, a solvent, or a diluent is used. Suitable materials for the vehicle include cellulose derivatives such as nitrocellulose, styrene resin, acrylic resin, rosin, rosin ester resin, polyvinyl acetate,
These include polyvinyl chloride, polyester, polyurethane, butyral resin, etc. The embossing should be linear, such as a hairline, to make the grain look like grain, and one that expresses the conduit grooves of the wood grain is particularly suitable. The colored ink is filled into the recesses formed by embossing by a wiping method using a doctor blade or a roll. The colored ink used here is made of urethane resin, acrylic resin, polyester, or other commonly used vehicle with pigment added. A two-component curing type with good adhesion and solvent resistance is preferred. The gloss adjustment layer is formed by applying a paint containing an appropriate amount of gloss adjustment agent dispersed in an appropriate vehicle. As the vehicle, any resin such as a thermoplastic resin, a thermosetting resin, an ultraviolet curable resin, or an electron beam curable resin can be used. The gloss adjustment layer can also be formed by combining two or more types of paints with different matte degrees. When the gloss adjustment layer is provided in a pattern that matches the pattern underneath, the visual three-dimensional effect is increased. As described above, a glittering colored layer is provided on the concealing solid printing layer or the pattern printing layer, if desired. This reproduces the so-called "shine" of wood and enhances its texture. Examples of pigments forming the glittering colored layer are (a) pearl pigment, (b) metal powder, and (c) fragments of vapor-deposited plastic film.

[For use]

Printing with the desired effect can be easily achieved by following the steps of using a paper sheet as a base material, providing a synthetic resin layer thereon, printing a wood grain pattern, and then embossing it.
By filling the recesses provided by embossing with colored ink using a wiping method, an appearance resembling a wood grain conduit is obtained, and in combination with the above printing, a pattern reminiscent of true wood grain is achieved. The luster-adjusting layer and the glittering colored layer assist in this effect and help produce a texture that is even closer to that of natural wood. Decorative materials using plastic film as a base material may have their designs deformed by heat, but the decorative material of the present invention that uses a paper sheet as a base material does not have such concerns.

【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
1 part isopropyl alcohol 4 parts total 100
A glitter 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
Part: Isopropyl alcohol: 4 parts: Total: 40 parts A gloss adjusting paint having the following composition was prepared. Acrylic polyol resin 100 parts Xylene diisocyanate 30 parts Micro silica
3 parts ethyl acetate 30
Part toluene 30 parts Total 293
High-density polyethylene "
Milanan 14'' (Mitsui Polychemicals) was coated to a thickness of 50 μm. The surface of the polyethylene layer is treated with corona discharge to increase the "wetting index" to 38 dyne/d or more,
It was used as a base material. The above-described concealing solid printing ink was printed on the corona discharge treated surface of this base material, and gravure solid printing was performed thereon with the above-mentioned glitter coloring ink. Next, an oak pattern was gravure printed using the above pattern printing ink. The printed paper thus obtained was heated to 120°C to soften the polyethylene layer, and then passed through a hairline embossing roll (widthwise pitch 100-200μ) with a surface temperature of 20°C to create hairlines in the fiber direction of the oak grain pattern. The embossing was performed by matching the directions of the two. Next, colored ink rW- is applied to the surface having the embossed pattern.
141J (Showa Ink) was applied and wiped, and then the gloss adjustment paint mentioned above was roughly applied to the plate depth of 60mm.
It was applied with a μ gravure roll. In this way, the decorative material of the present invention was attached to a 4 m thick plywood board using vinyl acetate adhesive rAc315J (Chuo Rika). The obtained decorative board was comparable to board material cut from natural wood. [Effects of the Invention] The decorative material of the present invention has an appearance that closely resembles the grain of natural wood. As already mentioned. By selecting appropriate embossing and surface coating, the texture can be similar to that of wood. The decorative material of the present invention can be manufactured according to known techniques and does not require special equipment or materials. Not necessary. Materials are cheap, so
The decorative material of the present invention can be provided at a low price. If the decorative material of the present invention is used in the manufacture of house interiors, fittings, furniture, etc., high-quality products can be obtained at low cost.

[Brief explanation of the drawing]

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 cross-sectional view showing a preferred embodiment of the decorative material of the present invention. FIGS. 3, 4, and 5 are sectional views corresponding to those described above, illustrating the steps of the method for manufacturing a decorative material of the present invention. 1...Base material 2...Synthetic resin layer 3...
・Wood grain pattern printing layer 4...Colored ink 5...Concave
Part 6... Concealing solid printing layer 7... Gloss adjustment layer Patent applicant Dai Nippon Printing Co., Ltd. Agent Patent attorney Souo Suga Figure 1 Figure 2 Figure 3 Figure 5

Claims (5)

[Claims] (1) A decorative material having a synthetic resin layer and a printed layer of a wood grain pattern embossed on a paper base material, and filled with colored ink in the recesses of the embossment. (2) The decorative material according to claim 1, wherein a concealing solid printing layer is provided on the surface of the synthetic resin layer, and a wood grain pattern is printed on the surface of the synthetic resin layer. (3) The decorative material according to claim 1 or 2, wherein a gloss adjustment layer is provided on the surface. (4) The decorative material according to any one of claims 1 to 3, further comprising a glittering colored layer provided on the pattern printing layer or the concealing solid printing layer. (5) A synthetic resin layer is provided on a paper base material, a wood grain pattern is printed, and then embossing is performed to give the synthetic resin layer unevenness, and colored ink is applied and wiping is performed to create recesses. A method for producing decorative materials, which involves leaving ink on the surface of the material.