KR970000733B1 - Pattern coating method of hardboard - Google Patents

Abstract

The patterns to be expressed on the hardboard are imprinted by an intaglio or carved. The surface of the hardboard is coated with an transparent paint to form a coated layer(30), and treated with natural dry for about 4 hours. The surface is polished with an abrasive paper to give it a state suitable for coating, and after that, on the base coating layer(30), paint for the embossed carving area(40) is worn by spraying. So, the layer of the embossed carving area(41) is made up, and having this processed with natural dry for 8-12 hours, and employing an abrasive paper, the layer is polished, subsequently, the paint of the color different from the embossed layer(41) is spread thereon.

Description

How to paint bicolor pattern on hard board for building materials

Figure 1 is an exemplary diagram of the undercoating process in the practice of the present invention.

Figure 2 is an illustration of the embossed coating process during the implementation of the present invention.

Figure 3 is an illustration of the initial step of the engraving process during the present invention.

Figure 4 is an illustration of the finishing process of the engraved part coating process during the present invention.

Figure 5 is an illustration of the final finishing step in the practice of the present invention.

* Explanation of symbols for main parts of the drawings

21: engraved coating layer 30: undercoat coating layer

41: embossed coating layer

The present invention relates to a dichroic pattern coating method on a hard board for building materials mainly used as building interior materials, doors and the like.

Generally, building interior materials and doors are mainly made of wood, but hard boards have recently been used as building materials for cost reduction.

Such hard boards are thin (about 5 mm) and have high hygroscopic properties, which makes it difficult to coat the surface. Therefore, there is a problem that the decorative effect as a building interior materials, doors that require decoration.

In the present invention, in order to solve the conventional problems as described above, the pattern shape to be expressed on the hard board is engraved in an intaglio, and the surface is subjected to a subcontracting process, an embossed part, a painting process, and an intaglio part painting process to form a dichroic pattern on the surface. We want to get a decorated surface.

The present invention will be described in detail by process as follows.

[Step 1]

Stamp or sculpt the pattern you want to express on the hard board surface. The stamping method can be stamped with a patterned engraved roller, and if the pattern is special, it can be engraved artificially.

The surface in which the intaglio pattern is formed as described above is polished with a polishing cloth to arrange the surface in a good state for coating.

[Step 2]

This process is the undercoat process, as shown in FIG. 1, after the natural coating of the undercoat layer 30 coated with a transparent paint on the hard board surface of which the engraved pattern 20 is pressed for about 4 hours, the surface is polished and coated with an abrasive cloth. Clean up in good condition.

At this time, the polishing cloth is used 180-200 mesh and polishing should be performed twice.

This process is the basis for preventing the color change and the good coating state of the paint by preventing the moisture absorption of the embossed and engraved paint to be coated next.

[Step 3]

This process is a coating process of the portion except the intaglio pattern 20, that is, the portion corresponding to the embossing, the paint for painting the embossed portion 40 on the undercoat layer 30 formed in the process as shown in FIG. Painting by spraying method to form an embossed coating layer 41, which is naturally dried for 8-12 hours and then polished with a polishing cloth to clean the painted surface.

At this time, the coating material used is a two-component urethane resin coating material, which contains a 2: 1 paint and a curing agent.

[Step 4]

This process is an intaglio pattern coating process, as shown in Fig. 3, the intaglio coating layer of the color different from the embossed portion coating layer 41 in the process by spraying method to form the intaglio portion coating layer 21 and then dried 4 to expose the color of the embossed coating layer 41 coated in the above process by polishing and removing the intaglio coating applied to the surface of the embossed portion 40, as shown in FIG. Only).

In this case, it is preferable to use a 220-320 mesh for the polishing cloth.

[Step 5]

This process is a conventional finishing process, as shown in Fig. 5 to obtain a finished product by applying a transparent coating paint 50 in a glossy or matte so as to protect the embossed, intaglio coating layers (21, 41).

The hard board coated as described above has a high decorative effect because the pattern of the surface is painted in a different color, it is used as a high-quality decorative plate material that can respond to various preferences of the consumer.

Claims (1)

A first step of engraving the pattern pattern on the surface of the hard board by engraving; A second step of applying a transparent paint on the surface of the hard board having the engraved pattern shape and then drying and polishing to form an undercoat layer; A third step of coating and drying and polishing a urethane paint for embossing paint on the undercoat; In order to paint the intaglio pattern, the intaglio paint of the color different from the embossed part is charted and dried.In this case, the intaglio paint applied to the embossed part is polished and removed until the embossed part is exposed. How to paint a dichroic pattern on the hardboard for building materials.