JPS6216703B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing a noncombustible decorative board in which metal is laminated by thermal spraying and patterned.

[Prior Art] When patterning a decorative board using a metal spraying method, conventionally a template was placed on the base surface and metal was sprayed onto the template to create the pattern. Conventionally, patterns are created by thermally spraying metal onto a template, so the template may shift during patterning, resulting in a lack of accuracy, poor finish, and inefficiency. There was a problem.

[Problems to be Solved by the Invention] The present invention solves the above-mentioned problems and provides a method for manufacturing a decorative board that can be patterned accurately and efficiently and has a good finish.

[Means for Solving the Problems] In order to solve the above problems, the present invention covers the surface of a noncombustible board by metal spraying or the like, and covers the surface of the coating layer with glue, leaving a patterned part. Then, a metal of a color different from that of the coating layer is thermally sprayed toward the patterned portion to form a pattern, and then the glue is softened with hot water and removed from the surface of the coating layer by a jet of high-temperature, high-pressure water. The sprayed metal surface is given a glossy finish and coated with resin.

[Examples] Examples of the present invention will be described below with reference to the drawings.

Appropriate shape (e.g. square) as shown in Figure 1
An abrasive is sprayed onto the surface of an untwisted board 1 such as a ceramic board, a silica board, or a slate board to make it look like sand. An appropriately selected metal such as copper, brass, or nickel alloy is thermally sprayed onto the entire surface of the non-combustible board 1, which has become sandy, to a thickness of about 1.5 to 2 mm as shown in FIG. Coat with a layer 2 of sprayed metal.

Next, the surface of the coating layer 2 is polished and washed with hot water, and then a resin-based water-soluble printing glue 4 is applied to the surface of the coating layer 2, leaving a patterned portion 3, as shown in FIGS. 3 and 4. is applied using a screen printing method, and the entire surface of the coating layer 2 except for the patterned portion 3 is covered with printing glue 4. After the printing glue 4 dries, a metal 5 of a color different from the base metal color is thermally sprayed onto the patterned portion 3 to form a pattern (see FIGS. 5 and 6).

When the patterning is completed, the noncombustible board 1 is placed in a hot water tank 6 as shown in FIG. 7, and the printing paste 4 is soaked in hot water 7. When the printing glue 4 becomes soft and easily peels off from the surface of the coating layer 2, the noncombustible board 1 is pulled up from the hot water tank 6 and placed on a conveyor 8 running in the direction of arrow a as shown in FIG. Printing glue 4 is removed from the surface of coating layer 2 by jetting high-temperature, high-pressure water. The metal that sticks out from the patterned area 3 and adheres to the printing glue during patterning is peeled off together with the printing glue 4 by the jet of high-temperature, high-pressure water (No. 9)
(see figure).

After removing the printing glue 4 from the surface, the metal surface is polished to a glossy finish, then washed and dried, and finally a resin-based paint or water glass-based coating material 1 is applied.
0 to prevent oxidation of the metal surface (see Figures 10 and 11).

As described above, water-soluble printing glue 4 is applied leaving the patterned area 3, and then metal is thermally sprayed on top of it to form the pattern. There is no metal attached to other parts, and the metal sticking out from the patterning part 3 and attached to the printing glue 4 is removed by spraying high-temperature, high-pressure water to the printing glue 4.
It is removed as the patterned part 3 peels off, and the metal can be thermally sprayed and laminated only on the patterned part 3, making it possible to perform accurate patterning.

The decorative board produced in this way is fixed by directly pasting the back side of the noncombustible board 1 to a concrete wall surface or the like with the metal surface facing up.

It should be noted that the present invention is not limited to only those shown in the above examples, for example, the base (coating layer)
Of course, it may be constructed of a thermally sprayed ceramic layer, and various other changes may be made without departing from the gist of the present invention.

[Effects of the Invention] As described above, according to the present invention, (i) even non-skilled people can accurately and reliably apply patterns, so decorative boards with a good finish can be efficiently manufactured; (ii) finished decorative boards Since it is non-combustible, it is ideal as a decorative board for construction. (iii) Since the metal surface is coated with resin, it can retain its luster over a long period of time and increase its surface strength.

This excellent effect can be achieved.

[Brief explanation of the drawing]

Figures 1 to 11 show the method of the present invention. Figure 1 is a perspective view of a noncombustible board with a sandy surface, and Figure 2 shows a state in which the surface of the noncombustible board is covered with a layer of sprayed metal. Fig. 3 is a perspective view of a noncombustible board whose surface is covered with a layer of sprayed metal, and Fig. 4 is a state in which the noncombustible board is coated with resin glue, leaving a patterned part on the surface of the coating layer. Figure 5 is a perspective view showing the metal sprayed onto the patterned part, Figure 6 is an enlarged cross-sectional view of the same part, and Figure 7 is the surface glue soaked in hot water. Figure 8 shows the state in which
The figure shows the adhesive on the surface being peeled off by spraying high-temperature, high-pressure water. Figure 9 is an enlarged sectional view of the main part showing the condition after the adhesive has been removed from the surface. Figure 10 is the finished decorative board. FIG. 11 is an enlarged sectional view of the same essential parts. 1 is a noncombustible board, 2 is a coating layer, 3 is a patterned part, 4
5 is a water-soluble printing paste, 5 is a metal, 6 is a hot water tank, 9 is a high pressure steam nozzle, and 10 is a coating material.

Claims (1)

[Claims] 1 The surface of the noncombustible plate is coated with metal spraying, etc.
The surface of the coating layer is coated with glue leaving a patterned part, and then a metal of a color different from that of the coating layer is thermally sprayed toward the patterned part to pattern it, and then the glue is soaked with hot water. A method for producing a decorative board, which comprises removing the coating layer from the surface by spraying high-temperature, high-pressure water, and then polishing the sprayed metal surface and coating it with a resin or the like.