JPS6364746A - Coated decorative board abounding in cubic feeling - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a painted decorative board with a rich three-dimensional effect that can be used for the interior of a house, housing equipment, furniture, etc.

[Conventional technology] Conventional decorative boards with a three-dimensional effect are those in which an uneven pattern is formed on the surface of the decorative board using an embossing roll or an embossing board (
(Special Publication No. 40-27014, Special Publication No. 47-18559, Special Publication No. 47-32694), and the curing speed of the resin applied to the surface of the decorative board was made different, and the difference was used to form an embossed pattern on the surface. Things (Tokuko Sho 46-36479,
Special Publication No. 47-71053), etc.

[Problems to be Solved by the Invention] Many of the conventional decorative boards described above give a three-dimensional effect by synchronizing the uneven pattern and the printed pattern, and when finished with a single color paint, they lack the three-dimensional effect. Ta.

[Means for Solving the Problems] The present invention was made in view of the above-mentioned problems, and includes forming an ink layer colored with a dye only on the concave portions of the uneven pattern on the plate-like substrate, or An ink layer colored with a dye is formed on the entire surface of a plate-shaped substrate, a raised pattern is formed on it by screen printing, etc., and an opaque synthetic resin paint containing a solvent capable of dissolving the ink layer is applied over the entire surface. It is applied to

This will be explained below based on the drawings.

FIG. 1 is a partial sectional view of a painted decorative board with a rich three-dimensional effect showing an embodiment of the present invention.

If necessary, apply a base treatment such as sealer treatment to the uneven pattern on the plate-like substrate 1 such as plywood, fiberboard, inorganic board, etc., and apply ink completely colored with dye to the desired color on the entire surface using a roll coater or the like. After coating, the ink adhering to the surface of the convex pattern 3 is scraped off using a reverse roll coater or a blade, and an ink layer 2 colored with the dye is formed only on the concave portions 5 of the concavo-convex pattern. An opaque synthetic resin paint containing a soluble solvent and colored in a different color from the ink layer 2 is applied to the entire surface using a flow coater, roll coater, spray, etc. to form an opaque paint layer 4.

By configuring the ink layer 3 colored with the dye and the opaque paint layer 4 as described above, the dye in the ink layer 3 is diffused into the opaque paint layer 4 in the area where the ink layer 3 and the opaque paint layer 4 are in direct contact. Therefore, even though the surface is painted in a single color, the color tones of the concave and convex portions change, giving a three-dimensional effect.

Changes in color tone between the concave portions and convex portions can be arbitrarily adjusted by adjusting the degree of diffusion of the dye. That is, the concentration of dye in the ink layer,
A desired color tone can be obtained by appropriately selecting the solvent, the amount of opaque paint applied, etc.

[Effects of the Invention] As described above, in the decorative board of the present invention, the dye in the ink layer formed in the recesses diffuses into the opaque paint layer formed on one surface, so it is possible to achieve an opaque monochromatic paint finish. Nevertheless, the color tone of the concave and convex portions changes and a painted decorative board with a rich three-dimensional effect can be obtained.

[Example] Example 1 The surface of plywood laminated with oak veneer having an uneven wood grain pattern was subjected to a sanding sealer treatment, and then 5% by weight of metal-containing complex salt dye was added to dye the plywood an eye color. After applying cotton lacquer ink to the entire surface using a roll coater, the ink on the surface of the convex portions was immediately scraped off using a reverse roll coater. After drying the ink, the surface was polished with a wide belt sander.

Next, an opaque acrylic urethane enamel was colored with an eye poly color using a roll coater and a flow coater (containing 10 parts by weight of butyl acetate and ○ parts by weight of MEKI as a solvent).
was applied at 70 g/m2 and dried.

A painted decorative board with a rich three-dimensional effect was obtained, with the convex portions having an eye-poly color and the concave portions having a light gray tone.

Comparative Example 1 A painted decorative board was produced in the same manner as in Example 1 except that a pigment was added instead of the dye in Example 1 and an eye-colored ink was applied. The resulting decorative board had an eyelid color in both the concave and convex portions and lacked a three-dimensional effect.

Example 2 An elm board pattern having conduit grooves as concave portions was formed on the surface of a medium density 1a fiberboard having a thickness of 3 mm by screen printing using an ultraviolet curable acrylic resin ink.

Next, an acrylic ink containing 5% by weight of a red metal-containing complex dye was applied to the entire surface using a roll coater, and the ink on the surface of the convex portions was scraped off. After drying, the surfaces of the protrusions were polished with 240# sandpaper to make them smooth and the ink adhering to the surfaces of the protrusions was completely removed.

Next, a beige opaque acrylic lacquer enamel (containing 10 parts by weight of ethyl acetate and 10 parts by weight of butyl acetate as solvents) was applied with a 100 g/m2 spray and dried, creating a three-dimensional shape with pink concave parts and beige toned convex parts. A painted decorative board with a rich feel was obtained.

Example 3 After applying a urethane sealer to the surface of an asbestos slate board that has been given an uneven pattern with an embossing roll, an acrylic lacquer ink colored yellowish brown by adding 7% by weight of dye was applied with a sponge roll. It was applied to the entire surface, and the ink applied to the surface of the convex portions was scraped off using a reverse coater and dried.

Next, spray 100 g/m2 of pearl-colored opaque acrylic urethane enamel (containing 10 parts by weight of ethyl acetate and 20 parts by weight of butyl acetate as a solvent) and dry. A painted decorative board with a natural stone pattern rich in three-dimensional effect was obtained. - A partial cross-sectional view.

1...Plate base material 2... Ink layer colored with dye 3...Convex pattern 4... Opaque paint layer 5... Concavity

Claims (1)

[Claims] An ink layer colored with a dye is formed only on the concave portions of the uneven pattern on the plate-shaped substrate, or an ink layer colored with a dye is formed on the entire surface of the plate-shaped substrate, and then synthetic resin is applied on top of the ink layer colored with a dye. A painted decorative board with a rich three-dimensional effect, which is characterized by forming a raised pattern and applying an opaque synthetic resin paint containing a solvent capable of dissolving the ink layer over the entire surface.