JPH0440909Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a painted board with a heathered texture, and more specifically to coatings for furniture and building materials used as structural materials for doors and walls of houses, or chests of drawers, etc. Regarding the board.

(Prior art) Conventional painted boards include those in which a colored paint is used on a flat board surface to express a two-dimensional heathered pattern, and those in which the board surface is pre-painted to give a three-dimensional effect to the heathered pattern. There is one on which a wavy uneven shape corresponding to the heathered pattern is formed, and a wood-colored paint is applied on top of it.

(Problem that the invention aims to solve) However, among the above conventional techniques, those that express a two-dimensional heathered pattern cannot express the three-dimensional sense of mass that natural wood has. On the other hand, if a board surface is pre-formed with a wavy uneven shape and wood-colored paint is applied, the wood-colored paint will be expressed three-dimensionally, but the wood-colored paint will not form the wavy uneven shape in the concave areas. As the convex portions were coated with the same color, it was not possible to express the aesthetic appearance of natural wood, which has a striped grain pattern of dark and light colors.

Therefore, the present invention was developed to express the heathered grain on painted boards for furniture and building materials by creating a three-dimensional sense of mass similar to that of natural wood, and a unique beauty of the heathered grain consisting of dark and light colored striped patterns. The technical problem to be solved is to provide the following.

(Means for solving the problem) A technical means for solving the above problem is a painted board for furniture and building materials whose board surface is painted to express a heathered pattern. A wavy uneven shape corresponding to the heathered pattern is formed in advance on the board, and the following paint layers are successively formed in a laminated manner on the board surface along this uneven shape.

1 Pre-treatment paint layer coated with light-colored paint.

2. An undercoat paint layer that is coated with a dark wood-colored paint and is ground by polishing to remove the paint on the convex portions.

3. A finishing paint layer consisting of a light wood-colored paint applied.

In the above technical means, the constituent material of the painted board is not limited. That is, it may be a so-called fiber board, a particle board, a hard board using pulp or chips derived from wood, or a board using other types of materials such as synthetic resin.

The painted board is not limited to a flat, rectangular plate. That is, it may be a door board with a predetermined decorative overall shape as in the embodiments described later, or it may be a circular or other plate-shaped body depending on the purpose.

Painted boards may have a heathered pattern on one side of the board, or they may have a heathered pattern on both sides of the board. Further, the means for forming the wavy uneven shape on the board surface is not limited. That is, in the above-mentioned fiber boards, etc., it can be formed by providing a wavy uneven shape on the mold surface of the press mold during the pressing process for molding the entire board, and for example, in the case of synthetic resin boards, It can be formed by providing a wavy uneven shape on the mold surface of a mold for injection molding. Furthermore, it is also possible to carve out a wave-like uneven shape on a flat board surface.

The paint used for the pretreatment paint layer contains a light coloring agent such as white or yellow. Usually, an aqueous acrylic emulsion paint containing the above-mentioned coloring material is applied by spraying, but the type of paint and the application method are not limited to those mentioned above.

The paint used for the undercoat layer contains a relatively large amount of wood color (so-called wood color) colorant, and has a deep wood color. On the other hand, the paint used for the finishing paint layer contains a relatively small amount of wood-colored colorant and has a light wood color. Although both of these paint layers are usually formed by spraying a polyurethane resin paint containing a colorant as described above, the type of paint and the method of application are not limited to these.

(Function) Each paint layer is formed along the wavy uneven shape previously formed on the board surface to correspond to the heathered pattern, so the board surface after painting also has a wavy uneven shape, so A three-dimensional sense of mass is expressed.

Among the corrugated irregularities on the board surface, in the convex portions, the dark wood-colored base paint layer is ground to expose the light-colored pretreatment paint layer, and then a light wood-colored finish paint layer is applied. On the other hand, in the concave portion, a finishing paint layer is directly applied on top of the undercoat paint layer. Therefore, the convex portion and the concave portion are of the same wood color and exhibit a striped pattern of light and shade, creating an aesthetic appearance similar to the grain of natural wood.

(Example) Next, an example of the present invention will be described based on FIGS. 1 to 3.

The board body 2 of the painted board 1 is used as a structural material for the door of a house, and as its cross-sectional shape is shown in FIG. It consists of a decorative plate part 4 having a predetermined three-dimensional shape and integrally formed on the inner peripheral side. This board body 2 is made by pulping coniferous wood using a predetermined known processing method, dehydrating it, and then press-molding it into a processed board having the shape shown in the figure.

On one side of the press mold (not shown) used for the above press molding, an uneven shape corresponding to the heathered pattern is formed over the entire surface, thereby forming the press molded board body 2. On one side of the board surface (the upper surface in FIG. 1), as shown in FIGS. 2 and 3 a, there is a wavy uneven shape consisting of alternately formed recesses 5 and protrusions 6. 7 is provided.

Next, on the board surface of the board main body 2, a pretreatment paint layer 8, an undercoat paint layer 9, and a finish paint layer 10 are formed in order from the bottom layer along the wave-like uneven shape. ing.

The pretreatment paint layer 8 is a pretreatment paint made by mixing a water-based acrylic emulsion paint, a white colorant, and water in a predetermined ratio, and is sufficiently coated on the board surface of the board body 2, as shown in FIG. 3b. After spraying a certain amount, keep it at room temperature for a specified period of time (for example, about 12 hours).
It is formed by drying and has a white color.

The undercoat paint layer 9 is made by adding a relatively large amount of a wood coloring agent (for example, 250% by weight of the mixed liquid It is formed by spraying an undercoat containing about 100 to 200 parts by weight of a coloring agent on the pretreatment paint layer 8 as shown in Figure 3c, and it has a deep wood-colored color. have. After this undercoat paint layer 9 is dried for a predetermined period of time (for example, about 2 hours) at room temperature, the chevron-shaped convex portion (the portion shown by the imaginary line in Fig. 3c) is ground by a polishing process. . Therefore, in this ground portion, the white pretreatment paint layer 8 is exposed on the surface of the undercoat paint layer 9.

The finishing paint layer 10 is a polyurethane resin paint,
A relatively small amount of wood coloring agent (e.g., mixed liquid
After spraying a finishing paint containing about 5 to 20 parts by weight of colorant to 180 parts by weight onto the undercoat paint layer 9 as shown in Figure 2, it is left at room temperature for a predetermined period of time (for example, 12 parts by weight). The finishing paint layer 10 itself has a light wood color.

Since the painted board 1 of this embodiment is configured as described above, even after the coating layers 8, 9, and 10 are formed, the coating board 1 follows the wavy uneven shape 7 provided on the board surface of the board body 2. The uneven shape is also formed on the surface of the finishing paint layer 10. This shape appears on the surface of the painted board 1 as a heathered pattern 11 with a three-dimensional sense of mass as shown in FIG.

In addition, in the heathered pattern 11 consisting of such a wavy uneven shape, in the convex portion corresponding to the convex portion 6, a pale wood color is applied to the white pretreatment paint layer 8 exposed on the surface of the undercoat paint layer 9. Finishing paint layer 1
0 is formed, so a light wood color appears,
On the other hand, in the concave portion corresponding to the concave portion 5, the finish paint layer 10 is formed on the dark wood-colored undercoat layer 9, so that the dark wood color appears. For this reason, the heathered pattern 11 has a beautiful shading striped pattern similar to the heathered grain of natural wood.

Moreover, the painted board 1 of this embodiment is a processed board, and does not suffer from defects such as dimensional deviations or cracks due to drying over time, which would occur if natural wood was used as is.

(Effects of the invention) The painted board of the invention has the same three-dimensional sense of mass and the beauty of the heathered grain as natural wood, and is free from the problems that would occur if natural wood was used as is.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of an embodiment of the present invention, Fig. 2 is an enlarged view of the main part of the fractured surface in Fig. 1 in the direction of arrow A, and Fig. 3a is a board in the same embodiment. FIG. 3B is an enlarged sectional view of the main part of the main body, FIG. 3B is a diagram showing the state of formation of a pretreatment paint layer, and FIG. 3C is a diagram showing the state of formation of an undercoat paint layer. 1...Painted board, 2...Board body, 5...
Concave portion, 6...Convex portion, 8...Pretreatment paint layer, 9...
Undercoat paint layer, 10...finish paint layer.

Claims (1)

[Scope of Claim for Utility Model Registration] A painted board for furniture or building materials whose surface is coated to express a heathered pattern, the board surface having a wavy uneven shape corresponding to the heathered pattern in advance. A painted board exhibiting a heathered pattern, characterized in that the following paint layers are sequentially formed in a laminated manner on the board surface along the uneven shape. 1 Pre-treatment paint layer coated with light-colored paint. 2. An undercoat paint layer that is coated with a dark wood-colored paint and is ground by polishing to remove the paint on the convex portions. 3 Finishing paint layer with light wood-colored paint applied.