JPS58151249A - Manufacture of decorative plywood - 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] The present invention relates to a method for manufacturing decorative plywood that embodies the texture of originals such as natural wood. The color pattern of the original is developed on the round photosensitive layer using this positive film,
By forming the color pattern of the original on the substrate, it is possible to create an accurate and beautiful color pattern on the original on the substrate, regardless of the unevenness, roughness, or curvature of the surface of the substrate. It is something to do.

Various methods have been known for producing decorative plywood. A typical example is to form a color pattern of the original on a substrate such as plywood or particle board, place a resin layer on the color pattern, and then imprint the uneven pattern of the original onto this resin film. There is a method of forming using an embossing roll. By the way, in this manufacturing method, in order to form a colored pattern on the substrate, there are two methods: ■ A method of attaching paper or vinyl sheets printed with the original color pattern to the substrate ■ A method of printing the color pattern directly onto the substrate ■ A method of printing the color pattern directly on the substrate - There is a method in which a sublimable substance such as C,I Disperse Yellow 1 is sublimated and adhered to the surface of a substrate to form a colored pattern. However, with the method of pasting printed paper or printed sheets, the printing paper, etc. must be prepared separately in advance, making the manufacturing process complicated and manufacturing costs high. The pattern can be easily changed, which is disadvantageous when manufacturing a wide variety of decorative plywood.

In addition, in the method of printing on the board KIII, since the board is made of #i mini-9-one plywood, etc., there is a slight unevenness on the board, which causes the printing to be difficult. It is not possible to obtain a clear color pattern.

Furthermore, if the substrate is curved, this method cannot be applied. Furthermore, the method using 1-11 chemical substances has the drawbacks of low productivity and high cost.

This invention was made in view of the above circumstances, and even if there are irregularities, warps, or curvatures in the base, it is possible to form a beautiful colored pattern 4II that is faithful to the original with high productivity, and furthermore! A method for manufacturing decorative plywood in which the color pattern can be easily and quickly changed on an Illumination line. It is characterized in that a positive film is used for the photosensitive layer, and a colored pattern is exposed and developed.

The present invention will be described in detail below with reference to FIG.

Figure 1 or #! An example of the method for manufacturing decorative plywood invented by Jin, 7 Zusha, is shown in the 18I application. First, select natural wood #1 as the manuscript, and select the surface t? Apply coloring to the surface of the wood 1111L with cracker thinner in a vacuum cleaner, then take a color photograph of the surface of the natural wood 1') as shown in Figure 111, separate the colors, and use 9 positive film 2t- prepare. 9. At the same time, prepare a mat made of natural wood L with irregularities S made of silicone resin as shown in Fig. 2. Next, as shown in Figure I/g3, 5 tons of white titanium paper is applied to the surface of a substrate 4 such as lauan plywood, verticle board, plaster board, or slate board.
41 adhesive etc., and then white titanium lA5
A special diazo photosensitive liquid 1-54IL is applied to the surface and dried to form a photosensitive layer 6. Then, using the photosensitive layer 6 shown in Figure 4 and having a one-color pattern printed thereon, a color pattern is exposed on the photosensitive layer 6 using a chemical lamp 7, and then the exposed photosensitive layer 6t is exposed. - in contact with ammonia gas,
The image formation coloring process of developing and coloring is repeated one to several times to increase or decrease the number of colors, and the color pattern of the natural wood 1 with a wood skin color is revealed on the substrate 4. Next, 8 tons of transparent or semi-transparent ultraviolet+iin shielding paint mixed with an ultraviolet absorber is applied to the surface of the round light layer 6 to prevent the color pattern from fading. (Figure S) Then, as shown in Figure JIG, transparent or translucent liquid unsaturated polyester resin or liquid diallyl 7! Apply a curable resin liquid 9 such as a rate resin, and before it hardens, apply the prepared 1I13t-alignment pattern 7 to the uneven pattern of natural wood 1 and apply it on the curable resin liquid 9. Press down and pour the curable resin liquid 9.
t-Cure.

Once the curable resin liquid 9 has hardened, the mold 3 is peeled off and #I
A decorative plywood 10 shown in FIG. 7 is obtained.

According to the manufacturing method of such decorative plywood lO, the photosensitive layer 6 provided on the substrate 4 is exposed to light and colored using a positive film 2 obtained by photographing the color pattern of the natural wood 1.
Since the photosensitive layer 4 is formed on top of the natural wood 1, even if the photosensitive layer 4 has unevenness or anti-polarity caused by the substrate 4, or even if the substrate 4 itself is curved, the color pattern is always faithful to the natural wood 1 and beautiful. Color patterns can be formed reliably. Since various color patterns can be formed simply by crossing the grooves and the positive film 2t, changing of types can be done quickly and easily.

In the above embodiment, a white titanium paper 5t was pasted on the substrate 4 and the photosensitive layer 6 was provided thereon, but a transparent or semitransparent resin layer was provided on the surface of the substrate 4, and the photosensitive layer 6 was provided on the surface of the substrate 4. Alternatively, a special diazo photosensitive liquid may be applied directly to the surface of the substrate 4 to form the photosensitive layer 6. Also, W
It is also possible to engrave a concavo-convex pattern of natural wood l on p using No. 3 and form the concave-convex pattern using a nine embossing tool.

As explained above, 1. The method for manufacturing decorative plywood of the present invention involves photographing the color pattern of an original, using a positive film, and exposing the photosensitive layer provided on the substrate to develop the color. Since it is characterized by forming a pattern,
Even if the substrate has irregularities, ridges, or curvature, it is possible to always form a beautiful color pattern *1 that is faithful to the original, and the selection of materials used for the substrate has expanded, allowing the use of low-grade substrates. hand,
You can get high quality decorative plywood. Additionally, since various color patterns can be formed simply by replacing the positive film, the type can be changed quickly and easily, making it suitable for a high-mix, low-volume first-vehicle system.

[Brief explanation of the drawing]

Figures 1 to 7 show an example of the method for manufacturing decorative plywood of the present invention in the order of steps, with Figure 1 being a schematic perspective view, and Figures jI2 to #I7 being schematic sectional views. 1...Natural wood, 2...Positive film,
3. Old mold, 4. Substrate, 6. Photosensitive layer, 9. Curing resin liquid, 10.
Decorative plywood. Applicant: Nippon Musical Instruments Manufacturing Co., Ltd. Baraki Shoko Co., Ltd. Figure 1 Figure 3 Figure 6 Figure 7

Claims (1)

[Claims] A mold modeled after the concave-convex pattern of the original is created, and a t-zero photograph of the original's color profile is taken to create a film with the color pattern on it.A photosensitive layer is then formed on the substrate, and the photosensitive layer is coated with the above-mentioned material. After exposing the color pattern on the film to develop color, a curable resin liquid tube is applied, and before this curable resin liquid hardens, the above! ! ! A method for producing decorative plywood, which is characterized by pressing and hardening the material, and then removing the stain.