JP2519841Y2 - Synthetic resin board with glossy wood pattern - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a plate material for manufacturing various containers made of synthetic resin, and more specifically to a synthetic resin plate having a glossy wood grain pattern. Is.

[Conventional technology and problems]

Currently, extruded expanded styrene resin sheet is mainly used as the plate material used for conventional synthetic resin containers, and the pattern is applied to this sheet on the back surface of a separately prepared glossy transparent resin film. Print the desired pattern,
This has been done by applying an adhesive to the printed surface and bonding it to a synthetic resin sheet. In this case, the printed pattern can be seen from the outside through the resin film which is wholly transparent and glossy, so that it is beautiful and extremely effective in the case of a lacquer pattern or the like. By the way, in the case of a wood grain pattern, it can be seen through the transparent film, so that the entire surface is glossy, the pattern is monotonous and has no depth, and the feeling of high quality is extremely poor.

The present invention has responded to the conventional demand that only the wood grain pattern is glossy, and the parts other than the wood grain are not glossy. It is an object of the present invention to industrially advantageously provide a synthetic resin plate capable of maintaining a close pattern for a long period of time.

[Means for Solving Problems and Effects]

The synthetic resin plate referred to in the present invention may be made of any material,
From the viewpoint of workability and productivity, a styrene resin sheet formed by extrusion foaming is particularly suitable. This sheet may be colored in an appropriate color.

 Hereinafter, the present invention will be described in detail with reference to the drawings.

In the present invention, a synthetic resin plate (1) which is the above-mentioned base material
An example of producing a desired synthetic resin plate by forming a synthetic resin film (2) having a glossy black wood pattern formed thereon and further forming a transparent resin protective layer (3) thereon will be described. . FIG. 1 is an enlarged sectional view for explaining the synthetic resin plate of the present invention, and FIG. 2 is a plan view of the same.

As described above, the synthetic resin plate (1) as a base material may be made of any material, but an extruded polystyrene foam sheet having an expansion ratio of 5 to 15 is preferable, and a thickness of 3 to 5 mm is usually sufficient. . Various patterns can be considered for the synthetic resin plate (1), but it is particularly necessary to devise a synthetic resin plate having a glossy wood grain pattern as in the present invention, and the pattern can be used for a long period of time. To maintain a beautiful appearance over time, it is essential to form a protective layer made of hard and strong synthetic resin.

For forming a glossy wood grain pattern, for example, the method described below can be adopted. As the first method, first, a transparent and glossy synthetic resin film (2) is used.
For example, a polypropylene film, a polystyrene film or the like having a thickness of about 20 to 30 μ is biaxially stretched, and a film having a high mechanical strength is prepared. In addition, it is desirable that this film is subjected to corona treatment so that the printing ink can easily spread. When printing a solid pattern with black ink on the entire back surface of this transparent film and printing a wood pattern with a matte type gray ink (black ink mixed with titanium white) on the surface, the part that forms the wood pattern is gray ink. Need to print without. In this way, the gray ink and the black ink printed separately on the front and back of the film are
The part printed without gray ink on the surface of the film makes use of the gloss of the film to form a three-dimensional wood grain pattern with a glossy appearance due to the black ink on the back side. As another method of forming a glossy wood pattern, a matte gray ink is used on the surface of the above-mentioned glossy synthetic resin film (2) which is colored black with a coloring agent such as a pigment. Similar to the above, the wood grain pattern must be printed without ink. By doing so, the portion printed without ink can be seen as a three-dimensional wood grain pattern that is raised due to the gloss of the film (2), and the commercial value is improved.

In order to retain this glossy floating wood grain pattern for a long time, a resin that is useful as a hard and strong engineering plastic, has mechanical properties, abrasion resistance, heat resistance, and a small friction coefficient, such as a resin. A general-purpose surface printing ink containing a polyamide resin dissolved in a solvent, for example, manufactured by Toyo Ink,
It is necessary to solid-print NP-ST to form a transparent thin resin protective layer (3) on the wood pattern.

On the synthetic resin plate that is the base material, apply the adhesive to the synthetic resin film having the glossy wood grain pattern made as described above and attach the both to give the desired glossy wood grain pattern. A synthetic resin plate having is obtained. It can be continuously produced by using a known extruded expanded styrene resin producing apparatus.

In the above production example, a black resin pattern is formed on one surface of the synthetic resin plate, but the color of the ink is changed, and a glossy wooden pattern is formed on both surfaces of the synthetic resin plate in the same manner. It has a great practical value because it has the advantage that the three-dimensional effect of the wood grain pattern can be maintained for a long time.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view for explaining an example of a synthetic resin plate according to the present invention, and FIG. 2 is a plan view of the same. 1 ... Base material synthetic resin plate 2 ... Synthetic resin film 3 ... Resin protective layer

Claims (5)

(57) [Scope of utility model registration request] 1. A synthetic resin plate, at least one surface of which is solid-printed with black ink on the entire back surface via an adhesive layer, and the surface is printed with a matte-type gray ink except for a grain-formed portion, and only the grain portion is printed. Is a synthetic resin film layer having a glossy pattern, and a protective layer made of a transparent resin formed on the synthetic resin film layer. 2. The synthetic resin plate according to claim 1, wherein the synthetic resin plate is extruded expanded polystyrene. 3. The synthetic resin plate according to claim 1, wherein the film layer having a glossy wood grain pattern is a biaxially stretched polypropylene film. 4. The film layer having a glossy wood grain pattern is a biaxially stretched polystyrene film.
The synthetic resin plate described. 5. The synthetic resin plate according to claim 1, wherein the protective layer made of a transparent resin is a polyamide resin.