JPS62269776A - Method for coating decorative laminated sheet - Google Patents

Abstract

PURPOSE:To accentuate the conduit groove of a butt sheet by coloring the inside of the conduit groove with a colored primer while removing the paint on the flat surface, and coating an intermediate coat in a lighter color than the primer having hiding power on the flat surface. CONSTITUTION:The colored primer 4 is rubbed in the recess 2 and coated while scraping off the paint on the flat surface, and the recess 2 on the surface of the butt sheet 3 stuck on a substrate 1 and having the conduit groove recess 2 is accentuated. The whitish colored intermediate coat 5 in a lighter color than the primer 4 having hiding power is coated on the surface except the recess 2. A transparent top coat 6 is then coated on the whole surface. Namely, when the color of the primer 4 is the same as that of the coat 5, the conduit groove on the butt sheet is accentuated, and a harmonized woody feeling is obtained as a whole. When the color of the primer 4 is different from that of the coat 5, the surface of the butt sheet is not blackened, unevenness is not caused, and only the conduit groove part can be clearly accentuated.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a coating method for emphasizing the concave portions of the pipe grooves of a sandwich plate and finishing the product in a desired color while making use of the wood texture.

[Conventional Technique v#] Traditionally, one method of making decorative boards with thinly cut natural wood plates attached to them is to clarify the channel grooves of the plates and emphasize the wood feel. After applying a dark coloring agent or paint that gives the desired pipe groove color directly to the surface, rub the coloring agent or paint into the recessed part of the test plate and remove the paint on the flat part by scratching, and then apply it to the surface. A common method is to apply a transparent top coat (commonly known as wiping treatment).

[Problems to be Solved by the Invention] The above wiping process applies a dark coloring agent or paint directly to the surface of the sandwich plate. Due to reasons such as unevenness and uneven thickness, it is practically impossible to completely remove the coloring agent or paint from flat areas, and there are disadvantages such as the entire surface of the sandwich plate becoming dark or remaining partially, making the surface mottled. was.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the wiping process, it is an object of the present invention to provide a coloring method that takes advantage of the recesses between the material of the sandwich plate and the channel grooves.

[Means for Solving the Problems] That is, the present invention involves rubbing a colored undercoat paint into the recesses so as to emphasize the recesses on the surface of the sandwich plate having the conduit groove recesses attached to the substrate. After coating, a white colored intermediate coat that is lighter in color than the base coat and has concealing properties is applied to the surface excluding the concave areas, and then a transparent top coat is applied to the entire surface.Coating of sandwiched decorative boards. Regarding the method,
The most distinctive feature is that after wiping the surface of the sandwich plate, a white paint with concealing properties is applied to the parts excluding the recesses.

Hereinafter, the present invention will be explained in more detail with reference to the drawings which are examples.

The drawing shows a cross-sectional view of a decorative laminate made according to the invention.

The sandwich plate 3 used in this invention has a thickness of 0.3 to 2,0 m.
It is a commonly used veneer made by thinly cutting a hardwood having a channel groove such as oak, Japanese oak, beech, Japanese zelkova, sakhi, etc. with a diameter of about 1.5 m, and a veneer made of ring-hole wood is particularly preferably used.

These sandwich plates 3 are adhered to a commonly used substrate l such as plywood or particle board via an adhesive 7.

First, the surface of the sandwiching plate 3 is adjusted by grinding the surface smooth using a sander or the like, or emphasizing the conduit groove recesses 2 using a brushing device or a shot blasting device.

Next, an undercoat 4 colored in the desired pipe groove color is applied to the upper surface of the sandwich plate 3 so as to be rubbed into the pipe groove recess 2.

Types of undercoat paint 4 include commonly used lacquer, amino alkyd, synthetic resin such as urethane as a vehicle,
It is a paint that has a coloring agent added to it, and the dark coloring agent, such as blackish brown, blackish gray, or even dark green, is 5 to 15% of the paint.
It is added in an amount of about % by weight.

The amount of undercoat paint 4 applied is approximately 100 to 15 G'g.
1/2 of the paint using a reverse coater or a wiping machine, and apply it by rubbing it into the concave portion 2 of the pipe groove and scraping off the paint on the flat portion.

Next, a white colored intermediate coat 5 which is lighter in color than the base coat 4 and has excellent hiding performance is applied to the surface of the base coat 4 excluding the rubbed concave portions 2.

The coating method uses a device suitable for coating the surface of a flat object, such as a roll coater.

The white colored intermediate coating 5 having hiding properties used in this invention is a paint that uses a common synthetic resin such as lacquer, aminoalkyd, or urethane as a vehicle and adds a coloring agent that has hiding properties. It is adjusted by mixing the coloring agent used in the undercoat paint 4 with titanium white, but in some cases, a white intermediate paint 5 having a color completely dissimilar to the color of the undercoat paint 4 may be used.

The amount of titanium white added to the intermediate coating 5 is selected depending on the color and density of the undercoat 4, but is usually in the range of about 1 to 10% by weight based on the intermediate coating 5.

The reason why the intermediate coating 5 is a white color that is lighter in color than the primer coating 4 and has masking properties is because it adheres to parts other than the conduit grooves that could not be completely removed even after the primer coating process was completed. The objective is to cover up the undercoating paint 4 with the intermediate paint 5 and to emphasize the conduit groove recessed part 2 colored in a dark color by contrasting with the white paint on the flat part.

After drying, a transparent top coat 6 is applied to the entire surface.

As the top coating 6, a commonly used synthetic resin coating for wood such as lacquer, aminoalkyd, or urethane is used, but a colored transparent resin may be added by adding a coloring agent.

The coating amount of the top coat 6 is 50 to loo g/d.
That's about it.

[Example code] Examples will be described below.

After adjusting the base material by grinding the surface of the sandwich board attached to the plywood surface with a No. 240 sand vapor, apply an undercoat of lacquer-based resin colored grey-black 80N100g/r.
n' was applied by rubbing it into the conduit groove of the sandwich plate using a wiping margin. Next, after drying the surface, 3
Sanded slightly with 60 grit sandpaper. next,
A urethane resin paint colored whitish gray was applied to the surface at 50 g/rn'' using a roll coater. After drying, a transparent urethane resin paint was applied at 50 g/rn'' and dried to complete the painting finish.

[Effect of the invention] As described above, the coating method for the sandwiched decorative board of this invention is as follows: First, the inside of the pipe groove is colored with a colored undercoat, and the paint on the flat surface is removed, and then the undercoat is applied. Since a light-colored intermediate coating with hiding power is applied to a flat surface, it has the following effects.

1. When the colors of the undercoat and intermediate paint are similar, the conduit grooves of the sandwich plates are emphasized, and the overall appearance of the sandwich plate-applied decorative board has a harmonious wood texture. I can do it.

2. If the colors of the undercoat and intermediate paint are dissimilar,
The colored primer paint that adheres to areas other than the pipe grooves is covered up with the intermediate coat, so the surface of the sandwich plate does not darken or become uneven, creating a new appearance that clearly emphasizes only the pipe grooves. It is possible to provide a sandwiched decorative board.

[Brief explanation of drawings]

The drawing shows a cross-sectional view of a decorative laminate made according to the invention. ■One substrate 2-Pipe groove recess 3-Slip plate 4-Undercoat paint 5-Colored intermediate paint 6-Transparent topcoat paint 7-Adhesive

Claims (1)

[Claims] 1. A board (3) having a conduit groove recess (2) attached to the substrate (1). A colored undercoat (4) is applied to the recess so as to emphasize the recess (2) on the surface of the board (3). After applying the paint by rubbing it into (2), apply a white colored intermediate coat (5) on the surface excluding the recesses (2), which is lighter in color than the base coat (4) and has concealing properties.
■A method for painting a decorative board, which is characterized by applying a transparent top coat (6) to the entire surface.