JPH02229582A - Painting method - Google Patents

Abstract

PURPOSE:To obtain a painting method which does not adopt a printing system, hence does not require plate making, can express nonuniform patterns and can form the patterns regardless of the sizes of a base material and the presence or absence of ruggedness. CONSTITUTION:After a primer coated film 2 is formed on the surface of the base material 1, dyes 3 are applied on the primer coated film 2 nearly over the entire surface. A solvent 4 is applied on the dyes 3 so as to exist here and there at plural points to move the dyes 3 by the solvent; thereafter, a clear top coated film 5 is formed thereon. The solvent 4 applied in such a manner acts as a carrier to move the dyes 3 and partially gather the dyes 3 to the line shape so as to form the part where there are the many dyes 3 and the part where there are the few dyes 3, thereby expressing the patterns which have a natural feel and are not uniform. The need for plate making required for the printing system is eliminated and the patterns are formed regardless of the sizes and ruggedness of the base material.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a coating method used to express the appearance of natural stone.

[Jumei technology]

Natural stones such as marble have been used as building materials since Jubai, but natural stones have drawbacks such as being heavy, easily broken, difficult to construct, susceptible to chemicals such as A, and susceptible to freezing damage due to water absorption. Therefore, recently, artificial stones such as artificial marble, which is formed by applying a hundred horizontal patterns such as marble patterns on the surface of a base material, are being used in place of natural stones. The most widely used method for creating such marble-like patterns is to print the pattern on the surface of the base material.

[Problem to be solved by the invention]

However, when patterning is done using this printing method, a printing plate is created and used to create the pattern, which poses various problems as described below. ■Prepress requires a lot of time and money. ■It is only possible to print a uniform pattern made by plate making, and it is not possible to express the various horizontal patterns like natural marble. If you want to express various aspects, you will need many versions. ■You can only print on a base material that is sized to match the size of the plate, so you cannot use a large base material. ■If the base material + 4 has irregularities such as embossing, it cannot be printed and cannot be used. The present invention has been made in view of the above points, and does not require a printing method.Therefore, there is no need for plate making, and it is possible to express a non-uniform pattern. The purpose of the present invention is to provide a coating method that can form a horizontal pattern regardless of the presence or absence of the coating.

[Means to solve the problem]

In the coating method according to the present invention, a base coat 112 is applied to the surface of the base material 1.
After forming the dye 3, the dye 3 was applied to the entire surface of the base coating 2, and the solvent 4 was applied in multiple spots on the dye 3, so that the dye 3 was moved by the solvent 4. This method is characterized in that a clear top coat film 5 is further formed thereon afterwards.

[For use]

In the present invention, the dye 3 is applied onto the base coat 2 and the solvent 4 is applied onto the dye 3, so that the solvent 4 acts as a carrier and moves the dye 3. It is possible to create wedge-like expressions such as Ishishin-sama by collecting parts of the dye to form areas with more and less dye 3, and changing the shading of the color pattern. Since this horizontal pattern does not become the same depending on the application condition of the solvent 4 and the coexistence of spread, a non-uniform pattern can be expressed.

【Example】

The present invention will be explained in detail below using examples. As the base material 1, metal plates such as aluminum plates, stainless steel plates, iron plates, etc.
Inorganic boards such as asbestos cement boards, calcium silicate boards, and gypsum slag boards, wood boards such as plywood and wood boards, and resin boards such as FRP boards can be used. There is no problem even if the surface of this base material 1 is uneven (embossed), but since marble is usually used with a smooth finish, when used as artificial marble, the surface should be formed smooth. It is preferable to use the base material 1 that has been prepared. First, in the base coloring step, a base coating film (base coat coating film) 2 is applied and formed on the surface of the base material 1. The purpose of the base coat II2 is to hide or color the base color of the base material 1, and it is preferable to use an enamel-based paint that has concealing properties and coloring effects. Coating can be done by any method using a roll coater, 7-row coater spray, etc. alone or in combination. After forming the base coating film 2 on the surface of the base material 1 in this way, base coat I! A film of dye 3 is formed on I2. Dissolve Dye 3 in a solvent and apply this as a base coat! Figure 1 (1)
A film of dye 3 can be formed as shown below. As the solvent at this time, it is possible to use an organic solvent such as an ester-based or ketone-based solvent, and the dye 3 is dissolved at a ratio of, for example, about 3 parts by weight to 100 parts by weight of the solvent.
It is preferable to form a film of dye 3 with a dry film thickness of about 1 μm by applying this using a roll coater or spray. Next, after the solvent for applying the dye 3 is vaporized and blown off, the base material 1 is placed so that the film of the dye 3 is on the top surface,
Apply solvent 4 on top of the dye 3 film. The solvent 4 is applied by spraying over the entire surface of the base material 1 as shown in FIG. 1(b).
This is done by using Drop 8 or the like to drop it in small particles at multiple locations. As the solvent 4, it is preferable to use an ester-based, ketone-based, or alcohol-based organic solvent, that is, a liquid with a low surface tension and a low boiling point. However, when collecting and reusing them, it is better to use one type alone. And like this solvent 4
When the dye 3 is dotted and applied on the film of the dye 3, when the solvent 4 applied in granular form spreads, the solvent 4 acts as a carrier and moves the dye 3, as shown in Fig. 2(a). The dye 3 is transported and collected between the matching solvents 4 and 4, and thick parts and thin parts of the dye 3 are formed, forming cloud-like shades of color. Become. Solvent 4
Because it evaporates in a short time after it is applied, the dye 3 is carried along with the solvent 4 without being dissolved in it. Therefore, it is preferable that the solvent 4 should not have a very high dissolving power for the dye 3. Then, when solvent 4 is evaporated (volatilized), #! Figure I2 (b)
Dye 3 remains in an unevenly distributed state, and the contrast of light and shade due to this uneven distribution of dye 3, and the color of base coating film 2 mainly appears in areas with less dye 3, and the color of dye 3 appears in areas with more dye 3. By contrasting the colors, which appear mainly, we are able to express the marble-shaped and stone-sided shapes with a subtle depth that cannot be obtained with printing methods. Here, the state of movement of the dye 3 changes depending on the amount of applied solvent 4, the area at the time of application, the interval between the applied solvents 4, etc., and the degree of spread of the solvent 4 also changes each time. By changing the state of uneven distribution of 3, it is possible to change the shading and the combination of colors, making it possible to express a cloud-like pattern that is not uniform. Apply solvent 4 in spots as described above and dye 3.
After forming a pattern with the solvent 4 and removing the solvent 4, a top coat is applied thereon as shown in FIG. 1(e). Form 5. The top coat film 5 has surface hardness, light resistance,
It is formed to impart chemical resistance, moisture resistance, etc., and to obtain depth of the pattern, surface gloss, and surface smoothness.
As the paint, it is preferable to use a two-component type such as a polyester type, acrylic type, or urethane type, or a clear paint such as an ultraviolet curing type. Further, it is preferable to use a color clear paint as the clear paint to form a color clear top coat lI5. Color clear paint is a regular clear paint with pigments added for coloring, and it has both a coloring effect and transparency, and can emphasize the depth of the pattern. Therefore, it is a top coat. By using color clear as the coating film 5, it is possible to express the depth of the pattern and the change in color even more than with transparent clear. In order to effectively create more depth, it is best to make the top coat thicker by applying multiple coats. The coating for forming Topcoat F Coating WX5 can be done by any method using a roll coater, 7-row coater, spray, etc. alone or in combination. Furthermore, in order to eliminate foreign matter, air bubbles, and fine irregularities on the surface, the surface of the Topcoat BS can be polished to further increase the sense of depth.

【Effect of the invention】

As mentioned above, in the present invention, after forming a base coat on the surface of the base material, a dye is applied almost entirely on the base coat, and a solvent is dotted at multiple locations on the dye. After applying the dye using a solvent to move the dye, we formed a clear Topcoat film on top of this, so the solvent used in the dotted manner acts as a carrier and moves the dye. By forming areas with more dye and areas with less dye, it is possible to create customary expressions such as stone patterns by contrasting the shading of cloud-like color patterns, and it is possible to create a natural look without using printing methods. It is possible to form a fighting pattern, and since this horizontal pattern does not become the same depending on the condition of the solvent application and the spread of the attack, it is possible to create a non-uniform horizontal pattern. In addition, since patterns can be expressed by applying dye and solvent, there is no need for plate making as is the case with printing methods, and it is possible to form patterns regardless of the size of the substrate or the presence or absence of irregularities. It becomes.

[Brief explanation of the drawing]

FIGS. 1(a), (b), and (e) are cross-sectional views at each step of an embodiment of the present invention, and FIGS. 2(a) and (b) are cross-sectional views at each step of the same. 1 is the base material, 2 is the base coating film, 3 is the dye, 4 is the solvent, and 5 is the top coat M film.

Claims (1)

[Claims] (1) After forming a base coat on the surface of the base material, apply the dye to almost the entire surface of the base coat, and apply the solvent in multiple spots on the dye to coat the dye with the solvent. A painting method characterized by further forming a clear top coat film on top of the moving material.