JPS6344424B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a multicolored patterned board using a board material having an uneven pattern, and more specifically to a method for manufacturing a multicolored patterned board using two or more rolls having different surface hardnesses. It is about the method.

Conventionally, to finish patterns on architectural boards, multicolor patterns are created by printing, or if paint is used, the entire surface of the board is flow-coated or spray-painted, and then a roll coater is applied to coat only the uneven areas. Previous methods were limited to painting with different colors to obtain a two-color pattern, or applying color clear to an embossed board and using the flow of the paint to create a two-color pattern with the shading of the finish.

However, as tastes for interior and exterior materials became more sophisticated, there was a desire for a method for manufacturing multicolored patterned boards that could be mass-produced.

The present invention uses a roll made of a special material in the roll coater, changes the hardness of the surface material of the roll, and automatically changes the coated area of the paint by repeating the coating, which was previously considered impossible other than printing. This multicolored pattern, which had previously been used in the past, was made possible by painting.

That is, the method of the present invention targets a plate material having an uneven pattern of 0.5 to 10 mm, and the material of the plate material is not particularly limited, and any embossed board may be used. For items that absorb a lot of paint, apply appropriate suction prevention measures and apply paint in the desired color to the entire surface using a flow coater or spray. If the board is colored, it may be left unpainted or painted with a colored clear coat.

Use paint rolls with different surface hardness, for example, rubber hardness of 20°, 40°, 60°, etc., use paint of an appropriate color compared to the color that was previously painted on the entire surface, and as a first step, hardness The process consists of applying the paint using a low roll, and then applying a harder roll and a paint of a different color to coat the paint one after another.The combination of two or more roll hardness levels and colors is used. , can be determined as appropriate. Finally, a metal roll may be used, and a clear or colored clear may be applied to the entire surface.

By using this invention, by changing the embossed pattern of the board material, such as a wood grain pattern, a brick pattern, an abstract pattern, etc., it is possible to obtain a desired multicolor pattern that is excellent in terms of design by painting.

Next, the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a cross-sectional view of the embossing material. First, in the first step, use a flow coater or spray coating (electrostatic coating has less loss and is more efficient).
Paint the entire surface of bb′, cc′, dd′, ee′. In the second step, bb', cc', dd', and ee' are coated with a sponge roll, meji roll, or a roll with a rubber hardness of 20°. In the third step, cc', dd', and ee' are coated using a roll made of a harder material than the roll used in the second step, for example, a roll with a rubber hardness of 40°. In the fourth step, the third
Paint dd′ and ee′ using a roll harder than the roll used in the process, for example, a roll with a rubber hardness of 60°. In the fifth step, a roll with a rubber hardness of 80° is used in the same way.
Paint ee′. In these cases, it is natural to sequentially change the color of the paint.

If more colors are desired, the difference in rubber hardness may be reduced and multiple types of rolls may be used, or the final roll may be made of metal.

In addition, when combined with a printer, even more multicolored patterns can be obtained.

In the case of continuous painting, if the same type of paint is used, it is possible to apply the top coat even in an undried or semi-dry state, and of course, it is also possible to thoroughly dry the paint after each painting process.

Example 1 Object to be coated Flexible board, abstract pattern embossed product 1st process Flow coater painting Paint Urethane for toa tiles, Bengara (manufactured by Toa Paint Co., Ltd., 2-component urethane paint) Viscosity 18 ± 2 seconds (Iwata Cup 20) ℃) Conveyor speed 50m/min Coating amount 15±2g/square meter Drying 70℃ hot air 5-7min 2nd process Sponge roll painting The paint is a similar color to the paint used in the 1st process, and is slightly lighter in color.

Viscosity 30~35sec Drying 70℃ 2min 3rd process Rubber roll coating Rubber hardness 40゜ Paint is lighter in color than that in the 2nd process Viscosity 35~40sec Drying 70℃ 2min 4th process Rubber roll coating Rubber hardness 60゜ Paint Even lighter in color than the 3rd process Viscosity 40~45sec Drying 70℃ 2min 5th process Metal roll coating Paint Same color clear Viscosity 45~50sec Drying 70℃ 20min The finished product has an abstract pattern printed in five colors and has excellent performance as an interior and exterior material. A building material with excellent appearance and design was obtained.

Example 2 Object to be coated: Calcium silicate plate wood grain embossed product 1st step Sealer coating Sponge roll asbestos sealer #20 (manufactured by Toa Paint Co., Ltd.) Application amount 4-10 g/square meter Drying Natural drying 2nd step Base coloring , Air spray Paint Toracron LX-50 Brown (Acrylic paint manufactured by Toa Paint Co., Ltd.) Coating amount 15 ± 2 g/square meter Drying 60℃ hot air 5-7 min 3rd process Roll coating Rubber hardness 20° Paint is applied from the 1st process Light color Viscosity 30~35sec Drying 60℃ 2min 4th process Roll coating Rubber hardness 40゜ The paint is lighter than the 3rd process Viscosity 35~40sec Drying 60℃ 2min 5th process Roll coating Rubber hardness 60゜ Paint Semi-gloss color clear Viscosity 40~ Drying for 45 seconds at 60℃ for 15 minutes The finished product had a four-color wood grain pattern and was suitable for interior and exterior use.

Fig. 2 shows a multicolored patterned board like a decorative board manufactured according to the method for producing a multicolored patterned board of the present invention, and the illustrated decorative board has a masonry pattern painted in multiple colors. . The illustrated decorative board corresponds to the first embodiment, and uses a flexible board with a masonry pattern embossed on the base material to be coated.
The first step is to apply ivory gray paint to the entire surface of the object using a flow coater, the second step is to apply blue paint to almost the entire surface of the object except for the patterned areas of the joints using a sponge roll, and the third step is to apply ivory gray paint to the entire surface of the object. In the fourth step, a rubber roll with a hardness of 60° is used to apply light purple paint to a slightly smaller area of the object than in the second step, and in the fourth step, a rubber roll with a hardness of 60° is used to cover an area smaller than the third step. A white paint was applied, and in the fifth and final step, the white paint was applied only to the most convex part of the object using a metal roll. The paint used was an acrylic urethane resin paint. The decorative board that has been painted in this way has an excellent design pattern with a stone masonry pattern painted in five colors as shown in the figure, and can be effectively used as an interior and exterior material. When installed on the interior and exterior walls of a building, interior and exterior walls with a suitable masonry pattern can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a material showing the process of the present invention, and FIG. 2 is a diagram showing a decorative board manufactured by the method of manufacturing a multicolor pattern board of the present invention. aa′, bb′, cc′,
dd' and ee' respectively indicate the range of equal depth of the material.

Claims (1)

[Claims] 1. A method for producing a multicolored patterned board, in which a plate having irregularities of 0.5 to 10 mm in depth is painted and finished by applying layers using rolls with stepwise different surface hardness, starting with a soft roll and then using a hard roll.