JPS58209585A - Patterning of board for building - Google Patents

Abstract

PURPOSE:To provide patterns not standardized, having a depth and a three- dimensional feeling, to building boards by a method in which the surface of an elemental board to be patterned is pretreated and then patterned by printing, the pattern is shaded off by using a solvent, and a top coat is applied to the surface. CONSTITUTION:The surface of an elemental board 1 to be patterned is subjected to pretreatments, e.g., filling, sanding, application of base coat, etc., as needed, and then patterned by printing by means of a roll coater 2, etc. Then, a solvent is spread over the pattern 3 so printed by using a solvent spreader 4 to shade off the pattern 3 with the solvent, the solvent is removed by an adequate method, and then a top coat 6 is applied to the surface by using a flow coater 5, etc., to obtain an objective building board 7 with patterns.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective] It is an object of the present invention to provide a patterning method that can provide a deep and non-uniform pattern when patterning architectural boards.

[Background Art] For example, it is relatively easy to create a deep or three-dimensional pattern on an object such as paper.

That is, since the cost of patterning is rarely an issue, sophisticated printing methods such as gravure and gravure offset printing can be employed. Furthermore, a method using a transfer sheet obtained from the above printing method is also considered.

On the other hand, apart from the case of so-called decorative sheets such as wallpaper, when architectural boards are to be painted, economics becomes an issue, so it is difficult to employ the elaborate printing method described above. Furthermore, there are many problems in the painting process, such as the process being complicated.

Furthermore, since the same pattern is repeated as long as it is a printed matter, there is also the drawback that it lacks a natural feel.

A painting method called suminagashi (suminagashi) may be considered as a painting method to create a natural look, but since this is not a painting method suitable for mass production, it is difficult to put it into practical use as a painting method for architectural boards.

The present invention has been made in view of the above-mentioned circumstances. [Disclosure of the Invention] The present invention will be described below based on drawings showing embodiments thereof.

The figure shows a flowchart of steps for carrying out the coating method according to the method of the present invention. Here, 1 is a construction board that is a material, 2 is a means for patterning such as roll caulk, 3 is a pattern provided, 4 is a device for spraying a solvent, 5 is a device for applying a top coat such as a flow coater, 7 is a patterned architectural board.

The objects to be patterned in this invention are not limited to inorganic and organic boards, but all so-called architectural boards are covered. Examples include slate, calcium silicate board, gypsum board, and wood board.

The boards above are subjected to surface treatments such as sealing, base coat painting, and sanding as necessary. Next, the surface of the construction board l is coated with an appropriate method (for example, a roll coater 2
) to create a pattern. For example, a printing method is used. This pattern 3 uses ordinary paint, printing ink, etc. Next, a solvent is sprayed onto the pattern using a suitable spraying means 4 to melt the pattern and blur the pattern. Therefore, the solvent used here must be able to dissolve the previously applied pattern, at least to some extent, and the pattern must be applied using a composition that is soluble in the solvent used. Next, the solvent is removed by an appropriate method, and a top coat is applied thereon using, for example, a flow coater 5. What is thus obtained is a construction board according to the present invention.

Note that depending on the combination of pattern printing ink (or paint) and top coat material, the solvent spraying step may be omitted. In other words, the solvent contained in the top coat material may melt the previously applied pattern.

By doing so, the edges of the previously applied pattern are removed by the solvent, resulting in a deep or three-dimensional pattern. Furthermore, since the degree of erosion of the pattern by the solvent can be varied, it is difficult to create a uniform pattern, and a natural feel is created. Furthermore, it is a method suitable for mass production since it can express complex patterns such as those mentioned above.

[Example 1] 3- After applying sealing treatment to the material substrate, applying polyurethane 20-64 surfer (Nippon Paint side layer, urethane paint) as a base coat, and performing gravure printing on the surface subjected to sanding treatment. , ethyl acetate was applied by spray, and then a UV paint was applied as a top coat and cured.

The printed pattern was blurred, and a decorative board with depth and three-dimensionality was obtained.

[Example 2] The printing method was changed to the silk screen method, and the other procedures were as in Example I.
It was carried out following. Similar results to Example 1 were obtained.

[Example 3] Polytan QD (manufactured by Dainippon Toyo@,
After applying a urethane paint, gravure offset printing was performed, and the post-treatment was the same as in Example 1. Similar results to Example 1 were obtained.

[Example 4] V Celan #30 was used as the base coat in Example 1.
0-EX (manufactured by Dainippon Paint Co., Ltd., thermal crosslinking type A5-14 = acrylic paint) was used, and the post-treatment was the same as in Example 1. Similar results to Example 1 were obtained.

[Example 5] After printing in the same manner as in Example 1, Boliure 20-74 (urethane paint manufactured by Nippon Paint) was applied directly thereon as a top coat, dried, and cured. Example 1
Similar results were obtained.

[Effects] In this invention, the surface of the material to be patterned is subjected to pre-treatment such as sealing, sanding, and base coat painting as necessary, and then the pattern is printed, and then the pattern is applied with a solvent. Since it is characterized by applying a top coat along with blurring, the edges of the pre-applied pattern are removed by the solvent, resulting in a deep or three-dimensional pattern.
Since the degree of erosion of the pattern by the solvent can be varied, it is difficult to create a uniform pattern, and this has the effect of creating a natural feel. Furthermore, it has the effect of being suitable for mass production since it can express complex patterns such as those mentioned above.

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[Brief explanation of drawings]

The figure shows a flow coater in a process for carrying out the patterning method according to the present invention. 1... Construction board 2... Roll coater 3... Pattern 4... Solvent spraying device 5... Flow Coater 6 ・ ・ ・ ・ Top coat 7 ・ Patterned is for architectural board patent applicant Patent attorney representing Matsushita Electric Works Co., Ltd. Toshimaru Takemoto (2 idiots) 7- □ =- m-・-- otsuko

Claims (1)

[Claims] (1) The surface of the material to be patterned is subjected to pre-treatment such as sealing, sanding, and base coat painting as necessary, then printing is applied to the patterned surface, and then the pattern is blurred with a solvent and the top is It is legal to have patterns on architectural boards that are coated.