JPS59177174A - Coating method for emphasizing design of embossed pattern substrate - Google Patents

Abstract

PURPOSE:To intensively express the effects of an acute angle and ruggedness to an embossed pattern substrate, by applying undercoat paint onto the entire embossed surface of the embossed pattern substrate, and then further applying paint onto embossed protuberant parts only. CONSTITUTION:High-viscosity paint 2 having a solid part in an amount of 50- 90% and viscosity of 30-300PS free from coarse aggregates of 0.3mm. or more in size is applied as an undercoat onto the entire embossed surface of an embossed pattern substrate 1 by a direct roll coater. Then, the same high-viscosity paint 2 is built-up applied onto only protruberant parts in the embossed pattern by a direct or reverse roll coater. The embossed top parts after being temporally dried under this condition or without being dried is made flat by a roll press or the like and then dried. Thereafter, flat paint 3 is uniformly applied as a finish coat to obtain a product.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves applying a high viscosity paint to the entire surface of the uneven parts of various embossed pattern base materials using a roll caulk, and then applying the same high viscosity paint only to the convex parts. The present invention relates to a method for enhancing the design by adding a strong unevenness to an embossed pattern base material.

Conventionally, embossed patterned decorative boards have simply been made by uniformly applying flat paint to an embossed patterned substrate. The decorative board produced in this manner had a monotonous embossed pattern with sharp edges, a solid texture, and an uneven texture. Furthermore, if only the base material is embossed, there is a limit to the sharpness of the embossing due to the performance of the base material.

The purpose of the present invention is to use the conventional embossed pattern base material as it is, to make it advantageous in terms of performance and economy by using paint only on a part of the structure of the pattern, without changing the material used. .

The configuration of the present invention will be explained in detail below based on the drawings.

That is, first, a high viscosity paint 2 is applied to the entire surface of the embossed pattern base material 1 (hereinafter abbreviated as base material 1) shown in FIG. 1 using a direct roll coater as shown in FIG.

As for the coating conditions at this time, the material of the coating roll should be neoprene rubber, butyl rubber, nitrile rubber, etc., and the rubber hardness is generally 10° to 50°, preferably 10° to 50°, as measured by a JK S sprink type hardness tester type A. is 20°~4
The distance between the coating roll and the backup roll during painting is the embossed pattern shown in Figure 1 A. Same width as valley depth 2-3
χ is set to a small value, and the amount of paint applied is 0.1 to 0.1 in the dry state.
0,'8 kV/nf, preferably 02-0.4
Apply kg/yol and use it as a base coat. In this state, it may be dried once and then moved to the next step, or it may be moved to the next step without drying. In the next step, as shown in Fig. 3, high viscosity paint 2 is applied mainly to the convex portions of the base material 1 with the embossed pattern using Girectroll Cocoo or River 70-Le Cocoo.
Paint. The coating conditions at this time are that the material of the coating roll is neoprene rubber, butyl rubber, nitrile rubber, etc., and the rubber is 93 degrees U. The value measured by J Engineering S Knupling hardness tester A type is 10 degrees to 90 degrees, preferably 2.
The angle is 0° to 60°, and the condition is either foamed rubber or non-foamed rubber with flat wash or grooves cut in. The spacing between the coating roll and backup roll during painting is embossed as shown in Figure 1. Select the same height as the peak height of the pattern or within ±2χ of it, and the amount of paint to be applied is o, i to o, skq/n? , preferably 0°2~o, 4hg7ri. In this state, you can dry it once and apply a finishing coat of clay flat paint 3 of 30PS or less using air spray, or you can roll out the minute irregularities formed on the peaks of the embossed pattern without drying. As shown in Figure 4, a convex top is formed on a flat surface using a presser or sheet pressing method, and then dried to form a 30P
A final coat of flat paint 3 having a viscosity of S or less is applied uniformly using an air spray or the like to form a product.

Embossed pattern decorative board A shown in FIG. 5 made according to the present invention
Compared to the embossed pattern decorative board B coated with only the flat paint 3 shown in Fig. 6 by the conventional method, the depth from the peaks to the valleys of the embossed pattern decorative board is much larger, and the depth from the valleys is much larger. The change in the peaks or the area from the peaks to the valleys becomes sharp, and the viscosity of high viscosity paints is another property - the value of the Tigisotropisok index shown in J Engineering 5K-6838, 2. In the range of .0 to 8.0, a new change in sensation is imparted, such as the formation of new unevenness due to microscopic roving even in the troughs.

The embossed pattern decorative board A of the present invention shown in FIG. 5 produced in this way has a very superior aesthetic appearance compared to the embossed pattern decorative board B made by the conventional method shown in FIG. It also embodies excellent beauty with depth and natural taste.

Examples of the present invention and comparative examples will be shown below.

Example As an example, a high viscosity paint having the composition shown in Table 1 was applied to a stucco-like embossed pattern base material manufactured by Toshi Glasal Co., Ltd., which is commercially available, and was coated with a neoprene sponge rubber-gum HMJ coating. A direct roll coater using a SAD of 20° as the coating roll.Coat the entire surface at a dry weight of 0.2ktj/ηi.

High-precision paint formulation example (Table 1) Calcium carbonate Titanium oxide 50
6 Additives such as activators 2 Thickeners such as methyl cellulose 1 Water 16 total
100 After drying the above paint film, apply the same paint and a similar direct roll coater to only the convex parts of the embossed pattern base material at a dry weight of 0.8 kq/d. Gently press the paint film on the pattern convex part with a roller to form a flat surface.

After drying and solidifying the paint film, a low viscosity flat paint was then air sprayed to give a dry weight of 100g/yp?
Painted and let the paint film dry. Table 2 shows the evaluation of the decorative board made as described above.

Comparative Example 1 A low viscosity flat paint of 1001/721 by dry weight was applied over the entire surface in two coats using air spray on the same stucco-like embonu pattern base material made by Toshi Grassal as in the example. Then, an embossed pattern base plate was prepared using the conventional method. Table 2 shows the evaluation of the decorative board made as follows.

Comparative Example 2 A 170PsO high viscosity paint was first painted with a small pattern of 0.5 kQ/nt' dry weight using a high viscosity gun on the stucco-like embonu pattern base material made by Toshi Grassal Co., Ltd., which is the same as in the example. Next, apply the same high viscosity paint with a large pattern of 0°8kty/nf, press the newly formed uneven pattern with a roller, dry once, and then air spray with low viscosity Furano 1-paint. And the dry weight is LOO! /77? '
The entire surface was painted to create an embossed pattern double-layered decorative board. Table 2 shows the evaluation of the decorative board obtained above.

As described above, if the method of the present invention is adopted, it is possible to make a decorative board that is economically and aesthetically superior even if the conventional embossed pattern base material is used as the underlying base material. It has many excellent features, such as being able to maximize its effectiveness when adopted by manufacturers, metal siding manufacturers, and painting contract processing manufacturers.

[Brief explanation of the drawing]

1 to 4 are cross-sectional views of the main parts showing the order of steps based on the method of the present invention, FIG. 5 is a cross-sectional view of the main parts of a product based on the method of the present invention, and FIG. FIG. 2 is a cross-sectional view of the main parts of a product based on a conventional method. ■... Embossed pattern base material, 2... High viscosity paint, 3... Flat paint, A...
...Product based on the method of the present invention, B...i...Product based on the conventional method Patent applicant: Kikusui Chemical Co., Ltd. Representative Masao Toyama Figure 1 Figure 4 Figure 5 Figure 6 figure

Claims (1)

[Claims] Solid content 50-90, not containing 0.3% or more of rough bone phase
%, viscosity range 30-300 PSO High viscosity paint is applied to the embossed pattern using a direct roller coater to serve as an undercoat, and then the same high viscosity paint is applied to the direct roll coater 1 or reverse roll coater for embossing. A coating method for emphasizing the design of an embossed pattern base material, characterized by coating only the convex portions of the pattern, and forming a flat paint film on the convex portions or not forming the paint film on the convex portions.