JPH07107317B2 - Decorative board having uneven pattern and method of manufacturing the same - Google Patents

Description

Description: [Industrial field of application] The present invention relates to a decorative board coated with a wood fiber having an uneven pattern on its surface and a manufacturing method.

[Prior art and its problems]

The following proposals have been made for a decorative board coated with wood fibers.

B. As shown in Japanese Examined Patent Publication No. 40-14990, an uneven pattern is formed on the article surface and a transparent paint is applied over this pattern surface, and the pigment in the paint is allowed to settle in the concave part of the pattern, and the convex part of the pattern is transparent. It is designed so that only layers can be formed.

In this proposal, the convex portion of the pattern is expressed by the other color of the article through the transparent layer and the concave portion is colored by the sedimentation of the pigment in the paint, but there is a problem that it is monochromatic in color and monotonous in design. .

In addition, as in Japanese Utility Model Publication No. 50-10475 filed by the present applicant, “A sealer coating layer is layered on the convex outer surface of a substrate made of wood fiber, and an opaque coating film is formed on the surface and the concave outer surface. It is also proposed that "a coated board having an uneven pattern formed by layering the coating thickness of the semitransparent coating layer on the concave surface to be thicker than that on the convex surface" ing.

This proposal forms a sealer coating layer on the convex outer surface with a low specific gravity to prevent the absorption of the colored paint applied to the surface, thus forming a uniform colored coating layer regardless of the surface density of the uneven outer surface. After that, the semitransparent coating layer is applied so that the semitransparent coating layer is layered so that the concave outer surface portion where the convex outer surface portion leads to the opaque coating layer surface becomes thick. Therefore, on the convex surface, the color tone of the opaque coating layer is emphasized through the thin semi-transparent coating layer, and on the concave surface, the color tone of the opaque coating layer is almost hidden by the semi-transparent coating layer. The color tone of the film layer is emphasized.

Further, even in the intermediate portion from the convex surface to the concave surface, the semi-transparent coating layer is configured to be thicker according to the depth of the concave portion, so that the change in color tone between the convex surface and the concave surface is the same as the difference in shade of the same paint. There is no fault, and it causes a natural color change.

However, although it has been improved in design, it is necessary to form two layers of a colored coating layer and a semi-transparent coating layer, which complicates the production line, and the difference in shade of the same coating causes little change. I have left.

(Means for Solving Problems and Their Actions) The present invention has the following configuration in order to solve the above problems. That is, in a decorative board made of wood fibers, an uneven pattern is provided on the surface, and in the convex part 4 of the base material 1, the pigment 5a having a high specific gravity and large particles settles down on the surface,
The convex coating layer A having a low specific gravity and small particles 5b is formed on the upper portion of the convex coating layer A, and the low specific gravity pigment 5b having a small specific particle penetrates into the substrate 1 in the concave pattern portion 3. The concave coating layer B having a high specific gravity and large particles and having a large particle size is formed on the surface thereof.

According to the present invention, by adopting the above-mentioned structure, the colored coating layers A and B having different colors can be obtained in the uneven pattern portions 3 and 4 in one coating step. That is, a coating layer having a high design property can be obtained by a simple process.

Examples of the present invention will be described below.

(Description of First Embodiment) FIGS. 1 to 4 show a first embodiment of the present invention.

In FIGS. 1 to 4, the base material 1 is a fiber board manufactured by press-molding wood fibers obtained by an ordinary method.

The base material is not particularly limited as long as it is a base material that absorbs the paint instead of the fiber bow.

First, as shown in FIG. 1, a sealer is applied to the entire front surface of the substrate 1 by using a coating device to form a sealer coating layer 2. The sealer coating layer 2 is a colored coating material to be applied to the surface later. It is intended to prevent sucking into the base material.

Next, as shown in FIG. 2, the surface having the sealer coating film layer 2 formed thereon is subjected to a cutting process with an arbitrary pattern using a cutting machine such as a sealer or a grooving machine.

Thus, the remaining convex pattern portions 4 of the sealer coating layer 2 and the removed concave pattern portions 4 of the sealer coating layer 2 are formed on the surface.

Next, as shown in FIG. 3, a pigment 5a having a high specific gravity and a large particle and a pigment 5b having a low specific gravity are formed on the entire surface on which the uneven pattern is formed.
Using the coating device, the colored paint 5 in which and are arbitrarily mixed is applied almost uniformly.

When left for a while, the colored coating material 5 has the sealer coating layer 2 formed on the convex pattern portion 4,
The convex coating film layer A is formed as shown in FIG. 4 without being sucked into the substrate 1.

The convex colored coating layer A has a large specific gravity and a large particle 5a and a small specific particle 5b mixed in the colored coating material 5, so that the specific gravity is high and the large particle pigment 5a settles. The pigment 5b, which has a low specific gravity and small particles, is constructed so as to form a layer on top of it.

Therefore, the convex coating film layer A of the convex portion on the convex pattern portion 3 is expressed with a thick coating film, a low specific gravity, and a deep color tone of small particles.

By changing the addition amount of the pigment 5b having a low specific gravity and small particles, for example, by decreasing the amount, the color tone of the upper layer containing the pigment 5 is transmitted, and the specific gravity settling in the lower portion of the coating layer A is high,
The color tone of the pigment 5a having large particles has an influence, and it is submitted and a subtle color change is obtained.

Since the sealer coating layer 2 is not formed in the concave pattern portion 3, the colored coating material 5 is partially sucked into the base material 1 to form the concave coating layer B.

The recessed colored coating layer B contains a pigment 5a having a high specific gravity and a large particle and a pigment 5b having a low specific gravity and a small particle in the colored coating material 5 so that the coating material 5 is sucked into the base material 1 when it is sucked. The pigment 5b, which has a low specific gravity and small particles due to the flow, is sucked into the base material 1 together with the paint 5 and a large amount of the pigment 5a having a high specific gravity and large particles is left in the concave pattern portion 3 to form a layer. Composed.

Therefore, the coating film thickness B of the recessed colored coating layer B in the recessed pattern portion 4 is slightly thin, and the specific gravity is high, and the color tone of the pigment 5a having large particles is expressed deeply.

By changing the addition amount of the pigment 5b having a low specific gravity and small particles or the pigment 5a having a high specific gravity and large particles, the ratio of the pigment 5b having a low specific gravity and remaining in the coating layer B in the concave pattern portion 3 is reduced. Changes and the color tone of the pigments 5a and 5b influences and appears, and a subtle color change is obtained. This color change can also be obtained by changing the addition amount of the pigment 5a having a high specific gravity and large particles. If necessary, top coating may be applied to the entire front surface of the base material 1 on which the convex coating layer A is formed on the convex pattern portion 4 and the concave coating layer B is formed on the concave pattern portion 3.

If the color of the pigment 5a having high specific gravity and large particles and the pigment 5b having small specific gravity and small particles are changed, the uneven pattern portion 3,
4 colors can be changed, which helps improve the design.

In the first embodiment, the method of forming the uneven pattern by utilizing the property of preventing the coloring paint from being sucked into the substrate by the sealer coating layer formed by applying the sealer to the substrate is explained. Instead of the substrate 10 as shown in FIGS.
By heat-compressing the entire front surface of 1, the high specific gravity portion 102
And to prevent the suction of the colored paint 105 into the base material 101, then, similarly to the case of applying the sealer, the cutting process is performed, and the convex pattern 104 that remains in the high specific gravity portion and the concave pattern in which the high specific gravity portion is removed By forming 103 and applying the coloring paint to the entire surface on which the uneven pattern is formed
A similar decorative board having A and B can be obtained.

5 to 7, 105a is a pigment with high specific gravity and large particles.
105b is a pigment having a low specific gravity and small particles.

〔The invention's effect〕

By using a colored paint in which a pigment having a high specific gravity and large particles and a pigment having a low specific gravity and small particles are mixed, the color change between the convex portion and the concave portion of the surface uneven pattern due to the difference in the absorption of the coating material to the substrate It can be put out and can be done with one color painting.
Further, the color change can be easily made subtly by changing the addition amount of each pigment.

[Brief description of drawings]

(First Embodiment) FIG. 1 shows a step of applying a sealer in the method of the present invention. FIG. 2: The cutting process is also shown. FIG. 3: Shows a coating process. FIG. 4 shows the state of the final coating film. (Second Embodiment) FIG. 5: shows a step of thermally compressing the surface. FIG. 6 shows a cutting process. FIG. 7: shows the state of the final coating film. 1,101: Base material, 2,102: Sealer coating layer, 3,103: Concave pattern part,
4,104: convex portion, 5,105: paint, 5a, 105a: pigment with high specific gravity and large particles, 5b, 105b: pigment with low specific gravity and small particles,
A: convex coating layer, B: concave coating layer.

Claims (3)

[Claims] 1. A convex portion 4 of a base material 1 having a concave-convex pattern 3 made of wood fibers, in which a pigment 5a having a high specific gravity and large particles in a paint 5 is settled on the surface, and the specific gravity is low. The convex coating film layer A having the small pigment 5b as a layer on the upper portion thereof has the concave pattern portion 3 and the pigment 5 in the base material 1 has a low specific gravity and small particles.
A decorative board having a concave-convex pattern on the surface, wherein concave coating layers B each having 5b penetrated and having a high specific gravity and a large particle size of pigment 5a are formed on the surface. 2. A sealer is applied to the entire front surface of a base material 1 made of wood fiber to form a sealer coating layer 2. Next, a cutting process is performed to leave a convex pattern portion 4 and a sealer coating layer remaining on the sealer coating layer. Pigments having a large specific gravity and large particles are formed on the entire surface on which the concave-convex pattern 3 is removed and the concave-convex pattern is formed.
5a and a pigment 5b having a small specific gravity and a small particle size are applied to the colored paint 5 and the convex portion 4 has a pigment 5a having a large specific gravity and a large specific particle on the surface of the convex pattern portion 4a and a pigment 5b having a small specific gravity and a small particle size. Is a convex coating layer A having a layer formed on the upper part thereof, and the concave pattern part 3 is infiltrated with the pigment 5b having a low specific gravity and small particles in the base material 1 and a pigment having a high specific gravity and a large particle on the surface.
A method for producing a decorative board having a concavo-convex pattern, characterized in that 5a forms a layered concave coating film layer B, respectively. 3. A high specific gravity layer 102 is formed on the surface of a base material 101 made of wood fibers by heat compression, and then a convex pattern 104 is formed by cutting to leave the high specific gravity portion. A colored coating material 105 is formed by forming a concave pattern portion 103 from which a high specific gravity portion has been removed, and a pigment 105a having a high specific gravity and a large particle size and a pigment 105a having a low specific gravity size and a small particle size are arbitrarily mixed on the entire surface having an uneven pattern. , The pigment 105a with large specific gravity and large particles settles on the surface of the convex portion 104,
The convex coating layer A having a low specific gravity and small particles 105b is formed on the upper portion thereof, and the concave pattern portion 103 is penetrated by the low specific gravity pigment 105b into the base material 101 and has a specific gravity on the surface. A method for manufacturing a decorative board having a concave-convex pattern on its surface, characterized in that a concave coating layer B in which a pigment 105a having a high particle size and large particles is formed is formed. .