JPS627487Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a metal foil laminated decorative board having a color pattern and used for, for example, wall panels for interior decoration, signboards for various advertisements, display panels for display devices, and the like.

Conventionally, this type of decorative board has been produced by laminating and integrating a thermoplastic synthetic resin substrate and metal foil, and forming desired characters and figures on the surface of the metal foil by chemical etching such as etching. There is. In this case, since the metal foil is smooth and formed in a single color, there is a drawback that the characters and figures exposed from the engraved portions cannot exhibit sufficient decorativeness.

This invention aims to solve the above-mentioned drawbacks and provide a metal foil laminated decorative board with a color pattern that is even more decorative. Metal foils are laminated and integrated through a heat-sensitive transparent adhesive layer having chemical properties, and an uneven pattern and engraved characters and figures are formed on the surface of the metal foil, and further, in the recesses of the uneven pattern, is formed by forming a colored layer using paint, ink, etc.

Embodiments of this invention will be described below with reference to the drawings.

1 in Figure 1 is a thermoplastic synthetic resin substrate, for example, polyvinyl chloride resin, polymethacrylic resin, acrylonitrile-budadiene-styrene copolymer, etc., and the color tone, transparency, thickness etc. is selected. 2 is a heat-sensitive transparent adhesive with chemical resistance, for example, by introducing a special functional group into a base resin such as polyolefin, it can be bonded to various resins, metals, paper, wood, etc. just by heat and pressure bonding. It is transparent and has properties that are stable against radiation, ozone, water, etc., and is usually used in the form of a film with a thickness of 30 to 80 μm. 3 is metal foil, for example 2
Copper or aluminum with a thickness of 5 to 50 μm is used. 4 is an uneven pattern with a depth of 30 to 50 μm formed by adhering a metal foil 3 to the surface of the substrate 1 with a transparent adhesive 2 and then stamping the surface of the metal foil. Embossing is carried out by placing a conventional means for forming an embossed pattern, such as a mold roll or a template on which an uneven pattern is formed, on the surface of the metal foil and applying pressure. The shape of the concave-convex pattern 4 is not particularly limited, such as a regular shape or an irregular shape, but a grain pattern is preferable when used for an advertising signboard or display board.
Reference numeral 5 indicates letters and figures by etching. After forming an uneven pattern on the surface of the metal foil, a protective film is formed by means such as screen printing, photographic exposure, letter pasting, etc., and desired letters and figures are engraved. Reference numeral 6 denotes a colored layer formed in the concave portions of the uneven pattern 4. After etching, the protective film is removed and the uneven pattern surface is colored, or the metal foil surface is treated with a chemical treatment such as sulfurization or oxidation before the uneven pattern is formed. After forming the colored layer, the convex portions of the uneven pattern 4 are polished with a wire brush, puff, sandpaper, etc. to remove the colored layer on the convex portions. The metal foil surface is
After polishing the convex portions of the uneven pattern 4, clear coating is applied with acrylic spray paint to protect the surface from dirt and rust.

FIG. 2 is a drawing showing another embodiment, in which the thermoplastic synthetic resin substrate 1 is transparent, and a colored layer 7 is formed with a colored film, paint, etc. on the back surface of the substrate 1 corresponding to the etched portion 5. Various color combinations are possible.

As mentioned above, this invention has an uneven pattern on the metal foil and a colored layer is formed in the concave areas, so it has excellent decorative properties, and when combined with the color tone of the board expressed by the etched areas, it has an excellent color visual effect. A three-dimensional visual effect can be obtained.

[Brief explanation of the drawing]

FIG. 1A is a plan view showing one embodiment of this invention. FIG. 1B is an enlarged end view taken along the line A-A in FIG. 1A, and FIG. 2 is an enlarged end view showing another embodiment. 1...Substrate, 2...Adhesive layer, 3...Metal foil,
4... uneven pattern, 5... etched portion, 6... colored layer.

Claims (1)

[Scope of utility model registration request] A metal foil is laminated and integrated on the surface of a thermoplastic synthetic resin substrate via a heat-sensitive transparent adhesive layer having chemical resistance, and an uneven pattern and engraved characters and figures are formed on the surface of the metal foil. and a metal foil laminated decorative board having a colored pattern, further comprising a colored layer formed of paint, ink, etc. in the concave portions of the uneven pattern.