JPH04269579A - Patterning method - Google Patents

Abstract

PURPOSE:To pattern by screen printing wherein multiple plate and printing process are not necessary. CONSTITUTION:An under coat film 2 is formed on the surface of a base material 1. Raised patterns 3 having the same series of color as the under coat film 2 and a color thicker than that of the film 2 are formed on the under coat film 2 by screen printing. The screen printing is performed so as to make the widths of the raised patterns 3 vary partially. A multicolor expression can be realized due to occurrence of difference of concentration in wide and narrow parts in widths of the raised patterns 3, so that patterning with multicolor expression is possible by the screen printing with one color.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of patterning by screen printing.

0002

[Prior Art] When patterning is applied to decorative boards used for interior and exterior materials, patterning materials such as colored ink and paint are applied to the base material using a screen printing plate. This can be done using a screen printing method in which the surface is raised. In patterning by screen printing, if multicolor printing is performed to create a multicolor pattern, a screen printing plate is required for each color, and a printing process is required for each color.

0003

[Problem to be solved by the invention] However, if a screen printing plate is required for each color for patterning,
As the number of plates increases, the cost of producing the plates increases, and if a printing process is required for each color, the number of man-hours increases and the cost of manufacturing increases, resulting in an increase in costs.

The present invention has been made in view of the above points, and an object of the present invention is to provide a patterning method that allows patterning to be performed by screen printing without requiring a large number of plates or printing processes. It is something to do.

[0005]

[Means for Solving the Problems] The patterning method according to the present invention involves forming a base coating film 2 on the surface of a base material 1, and forming a base coating film 2 of a similar color to the base coating film 2 and a darker color than the base coating film 2. A raised pattern 3 is formed by screen printing on the base coating film 2, and
This is characterized in that the raised pattern 3 is screen printed so that its width dimension differs partially.

[0006]

[Operation] A raised pattern 3 having a similar color to the base coating film 2 and a darker color than the base coating film 2 is formed by screen printing on the base coating film 2, and the width dimension of the raised pattern 3 is partially Because screen printing is performed differently in the raised pattern 3, there is a difference in shading between the thicker and narrower parts of the raised pattern 3, making it possible to express multiple colors. Patterns can be added by printing.

[0007]

EXAMPLES The present invention will be explained in detail by way of examples. The base material 1 includes metal plates such as aluminum plates, stainless steel plates, and iron plates; inorganic plates such as asbestos cement plates, calcium silicate plates, and gypsum slag plates; wood plates such as plywood and wood plates;
A resin board such as an FRP board can be used. First, a base coat is applied to the surface of the base material 1, and a base coating film 2 is applied and formed. The purpose of the base coating film 2 is to hide or color the base color of the base material 1, and it is preferable to use an acrylic urethane paint or the like that has concealing properties and coloring effects. Coating can be carried out by any method using a roll coater, flow coater, spray, etc. alone or in combination.

After forming the base coating film 2 in this manner, a raised pattern 3 is formed thereon by screen printing as shown in FIG. 1(a). The patterning material used for screen printing, such as paint or ink, is a color similar to the color of the base coat 2 and darker than the base coat 2, such as acrylic urethane paint. UV paints with hiding properties such as Moreover, by printing this raised pattern 3 as a plurality of lines, a striped pattern can be formed. It is also possible to form a pattern by gathering a large number of lines. When the raised pattern 3 is screen printed in this manner, wide portions and narrow portions are provided so that the width dimensions are partially different, as shown in FIG. 1(b).

When creating a pattern by screen printing as described above, the color appears darker in the thicker lines of the raised pattern 3, and as the line becomes thinner, the color appears lighter, and due to this change in shading, screen printing in one color Can be expressed in multiple colors. This is because the area of the raised pattern 3 in the thick line part of the raised pattern 3 is larger than the exposed area of the base coating film 2.
As the lines of the raised pattern 3 become thinner, the exposed area of the base coating film 2 becomes larger than the area of the raised pattern 3. This makes the color appear lighter, and it is possible to express changes in shading. Here, on the contrary, if the color of the raised pattern 3 is made lighter than the color of the base coating film 2,
The color tone of the base coating film 2 becomes darker than that of the raised pattern 3, the overall color tone is strongly influenced by the base coat 2, and the expression effect of a change in shading due to a change in the thickness of the line of the raised pattern 3 is reduced. Therefore, in the present invention, the raised pattern 3 has a darker tone than the base coating film 2.

0010

Effects of the Invention As described above, the present invention forms a base coat on the surface of a base material, and forms a raised pattern on the base coat with a similar color to the base coat and a darker color than the base coat. In addition to forming the raised pattern by screen printing, we also screen printed the raised pattern so that its width differs partially, so there is a difference in shading between the thicker and narrower parts of the raised pattern, resulting in a multicolored pattern. It is possible to create a multi-color expression by screen printing a raised pattern in one color, and it is possible to reduce the number of screen printing plates as well as the printing process. This allows for patterning to be done by screen printing at low cost.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention, in which (a) is a cross-sectional view and (b) is a plan view.

[Explanation of symbols]

1 Base material 2 Base coating film 3. Raised pattern

Claims (1)

[Claims] Claim 1: A base coat is formed on the surface of the base material, and a raised pattern of a similar color to the base coat and a darker color than the base coat is formed by screen printing on the base coat, and
A patterning method characterized by screen printing a raised pattern so that its width differs partially.