JPH04305273A - Coating method for building material having rugged pattern - Google Patents

Abstract

PURPOSE:To allow the uniform coating of even the grooves running in any directions by feeding a plate material provided with longitudinal and transverse rugged patterns for bricks on the surface while maintaining the plane posture of this material with a coating roll as the posture rotated by a specified angle in the case of execution of surface coating by bringing the coating roll into contact with the surface of the above-mentioned plate material. CONSTITUTION:The surface of the plate material 1 provided with the longitudinal and transverse rugged patterns for bricks on the surface is subjected to the surface coating by bringing the coating roll 3 into contact with the surface. The plate material 1 is fed while the plane posture of the plate material with the coating roll 3 is maintained as the posture rotated by 30 to 60 deg.. Consequently, the grooves 1A, 1B running in any directions are uniformly coated.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method for coating building materials with uneven patterns.

[0002] Hitherto, architectural boards formed from fiber-reinforced cement have been very widely used. This type of architectural board material can be mass-produced with the same material and shape.
Also, unlike wood, it does not consume natural resources, so it is extremely useful. In addition, if the above-mentioned inorganic wallboard is left as it is, the base material is gray-black to gray-white and has an achromatic color and is lacking in design. It is common to paint them in various colors. In order to further enhance the design of the surface, an uneven pattern is also added to the surface.

0003

[Problems with the prior art] By the way, there are cases in which the above-mentioned wall board has an uneven pattern such as a brick pattern, and if the surface of the board material with such an uneven pattern that is regularly connected vertically and horizontally is coated with a roll coater. There was a problem that uneven coating was likely to occur in the vertical and horizontal grooves. In other words, the paint is relatively evenly distributed inside the grooves that are perpendicular to the roll coater, but the roll coater gets into the grooves that are parallel to the roll coater, resulting in an oversupply of paint and The problem was that the color was darker than other parts, resulting in very noticeable unevenness.

0004

[Problems to be Solved by the Invention] In view of the above-mentioned problems, an object of the present invention is to provide a coating method that can uniformly coat grooves running in any direction when coating grooves running vertically and horizontally using a roll coater. This was done as a.

[0005]

[Means for Solving the Problems] That is, the method for coating uneven building materials of the present invention is a coating method in which surface coating is performed by bringing a coating roll into contact with the surface of a board material having a vertical and horizontal uneven pattern for bricks on the surface. This method is characterized in that the planar orientation of the plate relative to the applicator roll is rotated by 30° to 60° before being fed into the applicator roll contact portion.

[0006]

[Operation] The coating roll used in this invention has a sponge-like surface layer on the surface that contacts the surface of the plate material, but its performance is the same as that of the conventional one, and this point will be particularly noted. There's nothing to do. In this invention, the plate material is fed into the applicator roll in an attitude in which the planar attitude of the plate material is rotated by 30° to 60°, whereas the plate material is fed in a parallel attitude with respect to the conventional roll. Due to this feeding attitude, the state of contact of the coating roll with the grooves running vertically and horizontally is uniform, and coating conditions are made uniform, thereby preventing the occurrence of coating unevenness.

[0007]

[Example] Next, an example of the present invention will be described. FIG. 1 is a plan view of an embodiment of the invention. 4.5m deep on the surface
Prepare a wall plate 1 having a brick-like pattern of m, and place this wall plate 1 on a belt conveyor 2 at a rotational attitude angle θ of 3 with respect to the traveling direction.
The rollers were placed at 0°, 45°, and 60° and fed to the coating roll 3 for coating. As a result, the insides of the grooves 1A and 1B were coated uniformly with no difference in length or width. As a comparative example, the above θ
When the wallboard was fed in with angles of 0° and 90°, paint accumulations were observed inside the grooves 1A or 1B parallel to the coating roll 3, and these unevenness could be clearly identified.

[0008]

[Effects of the Invention] As explained above, according to the present invention, even if a wall board has a deeply carved uneven pattern such as a brick pattern, the inside of the vertical and horizontal grooves can be removed by passing the paint roll only once. This makes it possible to paint wallboards that are evenly coated and have an excellent design.

[Brief explanation of drawings]

FIG. 1 is a plan view of a coating device used to implement the present invention.

[Explanation of symbols]

1 Wall board 1A, 1B Vertical and horizontal grooves 2 Belt conveyor 3 Paint roll

Claims (1)

[Claims] Claim 1: A coating method in which surface coating is performed by bringing a coating roll into contact with the surface of a plate material having a vertical and horizontal uneven pattern for bricks, in which the planar attitude of the plate material with respect to the coating roll is rotated by 30° to 60°. A method for coating construction materials with an uneven pattern, characterized in that the coating material is fed into a contact area with a coating roll.