JP2592001B2 - Synthetic resin decorative plate for pachinko machines and the like and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates mainly to a synthetic resin decorative plate for a pachinko machine, which does not crack, break or generate static electricity even in extremely cold and extremely hot temperatures. An object of the present invention is to provide a decorative plate made of a synthetic resin of this type which has a beautiful appearance and is stably maintained for a long time.

[Prior Art] For a long time, decorative plates for pachinko machines have simply been provided with a printed pattern on a thin plate of celluloid or a paper plate on the back of the thin plate polymerized and adhered. Instead of the printing plate, there is a printing plate provided on a printing plate of a synthetic resin, or a printing plate attached to the back surface of the printing plate.

[Problems to be solved by the invention]

However, because the first and second objects are flammable by celluloid, especially in a theater where many pachinko machines are installed,
Due to the great danger of fire, it has not been adopted recently. Accordingly, the third and fourth synthetic resin decorative plates have been adopted. However, these conventional synthetic resin decorative plates are liable to adhere to dust due to static electricity and the ink layer of the printed pattern on the back of the thin plate. Are formed in a series, so there is a major drawback in that the plate surface is distorted or cracked due to a change in temperature due to a change in temperature, especially in a very cold condition due to a difference in expansion and contraction with the thin plate due to condensation of the ink layer. There are various disadvantages such as impairing the processing such as perforation and grooving, and therefore, there is a disadvantage that it cannot be used for a long time as a decorative plate for pachinko machines. The present invention has been made to solve the above disadvantages.

[Means for solving the problem]

That is, the present invention provides (1) a transparent synthetic resin thin plate having an extremely fine and uniform uneven surface formed on the back surface, and only the top surface of each convex group in the uneven surface of the thin plate. By forming a color pattern layer for offset printing and forming a white ink layer for offset printing on the upper surface of the color pattern layer, the two printing layers are formed discontinuously, and a synthetic resin is formed on the upper surface of the white ink layer. A synthetic resin decorative plate for a pachinko machine or the like characterized by being formed by polymerizing and bonding a paper plate via a coating layer of a system adhesive, and (2) making a thin plate of a transparent synthetic resin extremely fine on the outer surface. A first step of passing between a mat roller having uniform irregularities and a glazing roller pressed against the mat roller to form an extremely fine and uniform irregular surface on the back surface of the thin plate; Offset only on the top surface of each convex group on the uneven surface Second to form a color pattern layer of the printed
And a third step of forming a white ink layer by offset printing on the upper surface of the color pattern layer, and applying a synthetic resin-based adhesive to the upper surface of the white ink layer to polymerize a paper plate on the coating layer surface; The gist is a method of manufacturing a synthetic resin decorative plate for a pachinko machine or the like according to the above (1), which comprises a fourth step of integrally applying pressure by roll pressing.

(Effects)

The present invention is to form a color pattern layer by offset printing only on the top surface of each convex group in the ultra-fine and uniform uneven surface beforehand on the thin plate back surface of the transparent synthetic resin as described above, but on the uneven surface Since a white ink layer is also formed on the upper surface of the color pattern layer by offset printing, and a paper plate is polymerized and bonded to the upper surface of the white ink layer via an adhesive, the color pattern The ink particles of the layer, together with the ink particles of the white ink layer, are fixed in a polymerized manner only on the top surface of each convex group on the concave and convex surface of the back of the thin plate, and each of the pattern and white ink layers is via the concave group. Since it is formed in each discontinuous state, it is synchronized with the expansion and contraction of the surface stencil even in extremely cold and extremely hot weather, so there is no fear that the stencil will be distorted, cracked, or broken. Constant moisture The presence of the stencil reduces the generation of static electricity on the surface of the stencil, thus preventing dust from adhering.This reduces the aesthetic appearance of the color pattern developed by the white ink layer on the back of the stencil and incorrectly moves the ball. There is no worry that it will be done.Because this makeup plate is of an integral construction, it can always be easily and accurately mounted on the back base plate of pachinko machines etc., as well as drilling and groove cutting. Has a long and stable effect. In addition, since the method for producing a decorative plate of the present invention is configured as described above, as described above, the color pattern layer and the white ink layer are formed in a discontinuous manner, and moisture is present in the concave groups on the back surface of the thin plate. This has the effect that a decorative plate having an interposed structure can be reliably manufactured.

〔Example〕

A so-called mat roller r ₂ having a 0.2 mm thick transparent cellulose acetate butane resin thin plate 1 formed on the outer peripheral surface thereof to be extremely fine and having irregularities h and t with a uniform roughness of 200 to 300 mesh, and It is passed through an extruder between the glazing rollers r ₁ to be pressed, and uniformly formed with ultra-fine irregularities H and T corresponding to the irregularities of the mat roller on the back surface of the thin plate. Color pattern layer E of UV curable printing ink of desired color on uneven surface by known offset printing method
And a white ink layer F of the same type of white printing ink as described above is formed on the upper surface of the color pattern layer by the offset printing method, and a coating layer N of a vinyl acetate adhesive is provided on the upper surface of the white ink layer. The tough white paper plate 2 is polymerized to cover the entire upper surface of the coating layer, and the whole is pressed and rolled up and down.
A decorative plate P in which R ₁ and R ₂ are passed through at a pressure of about 50 kg and the whole is integrally fixed, and the decorative plate is provided with a pachinko machine or the like via a coating layer N of a vinyl acetate adhesive on the back surface thereof. It is adhered to the veneer base plate 3.

[Brief description of the drawings]

FIG. 1 is an embodiment, and FIG. 1 is an enlarged cross-sectional view of a part of a microscopic structure in which a decorative plate according to the present invention is adhered to a base plate, and FIG. FIG. 3 is a process of forming a fine uneven surface on the back surface of the thin plate according to the present invention, and FIG. 4 is a process of passing the thin plate and the paper plate between upper and lower pressure rolls and bonding them. It is a schematic side view. 1 is a transparent synthetic resin thin plate, 2 is a paper plate, H and T are concave and convex portions, E is a color pattern layer, F is a white ink layer, N is an adhesive coating layer, P is a decorative plate, r ₁ the polishing roll, r ₂ is matte roll, R _1, R ₂ is the pressure roll.

Claims (2)

(57) [Claims] 1. A thin plate made of a transparent synthetic resin having an extremely fine and uniform uneven surface formed on the back surface, and offset printing is performed only on the top surface of each convex group in the uneven surface of the thin plate. By forming a color pattern layer and forming a white ink layer for offset printing on the upper surface of the color pattern layer, the two printing layers are formed in a discontinuous manner, and a synthetic resin adhesive is formed on the upper surface of the white ink layer. A decorative plate made of a synthetic resin for a pachinko machine or the like, characterized by being formed by polymerizing and bonding a paper plate through a coating layer. 2. A thin plate made of a transparent synthetic resin is made to be extremely fine on the outer surface and passed between a mat roller having uniform irregularities and a glazing roller pressed against the mat roller to form an extremely fine plate on the back surface of the thin plate. A first step of forming a uniform uneven surface, a second step of forming a color pattern layer for offset printing only on the top surface of each group of protrusions on the uneven surface of the thin plate, and an upper surface of the color pattern layer And a third step of forming a white ink layer by offset printing, and applying a synthetic resin-based adhesive to the upper surface of the white ink layer, polymerizing the paper plate on the coated layer surface, and pressing the rolls to integrally bond. 4. The method for producing a synthetic resin decorative plate for a pachinko machine or the like according to claim 1, wherein the method comprises a fourth step.