JP7055313B1 - How to make decorative wood and decorative wood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorated wood having excellent expressive power.
SOLUTION: The decorated wood is a decorated wood having a drawing on the surface. This decorative wood comprises a base plate and a drawing plate laminated on the base plate and including the surface. The drawing board includes a first wooden board and a second wooden board which is lower in brightness than the first wooden board and overlaps with the first wooden board on the base board side of the first wooden board in the thickness direction. The surface includes a first region where the surface of the first wood board is exposed and a second region where the surface of the second wood board is exposed when viewed in a direction perpendicular to the surface. The second region is a first carbonized portion formed by carbonizing the surface of the second wooden board and a second carbonized portion formed by carbonizing the surface of the second wooden board and having a lower brightness than the first carbonized portion. And, including.
[Selection diagram] Fig. 2

Description

The present disclosure relates to decorative wood and methods of manufacturing decorative wood.

Conventionally, it is known to apply a pattern to the surface of an interior material of a building. This kind of technique is described in, for example, Patent Document 1.

Patent Document 1 describes a building interior material having an uneven pattern formed on its surface. Specifically, this interior material is a tile-like interior including a base material made of plywood or the like, an uneven pattern coating layer formed by a synthetic resin emulsion-based spray coating material on the base material, and a synthetic resin coating layer. It is a material. This interior material is attached to the wall surface with an adhesive or the like.

Patent Document 2 describes a decorative board in which two veneers are bonded on a base material. Patent Document 3 describes a decorative laminated plywood in which high nitrile resin films and wood veneers are alternately laminated and have excellent laser cutting workability.

Jikkai Sho 52-105330 Gazette Japanese Unexamined Patent Publication No. 2008-12888 Jitsukaihei No. 2-27330

The building interior material described in Patent Document 1 forms an uneven pattern on the surface of the base material by spraying a resin-based coating material, but high expressiveness is required for decorative wood used for interior materials and the like. Be done. It is difficult to achieve such high expressiveness by spraying a resin-based coating material. The veneer described in Patent Document 2 is obtained by stacking a plurality of veneers having different colors and patterns, and then carving the surface of the veneer, but it achieves high expressive power as in Patent Document 1. Is difficult. The decorative laminated plywood described in Patent Document 3 is said to have excellent laser cutting workability, but it cannot be said that the expressive power in decoration is sufficient as in Patent Documents 1 and 2.

An object of the present disclosure is to provide a decorative wood having excellent expressive power and a method for producing the decorated wood.

Decorative wood according to the present disclosure is decorated wood with a drawing on the surface. This decorative wood comprises a base plate and a drawing plate laminated on the base plate and including the surface. The drawing board includes a first wooden board and a second wooden board which is lower in brightness than the first wooden board and overlaps with the first wooden board on the base board side of the first wooden board in the thickness direction. The surface includes a first region where the surface of the first wood board is exposed and a second region where the surface of the second wood board is exposed when viewed in a direction perpendicular to the surface. The second region is a first carbonized portion formed by carbonizing the surface of the second wooden board and a second carbonized portion formed by carbonizing the surface of the second wooden board and having a lower brightness than the first carbonized portion. And, including.

The method for producing decorative wood in accordance with the present disclosure is a preparatory step for preparing decorative wood, an installation step for installing decorative wood on a stage after the preparatory step, and a laser drawing after the installation step. It is equipped with a drawing process for drawing on the surface of decorative wood. In the preparatory step, decorative wood comprising a base plate and a drawing plate laminated on the base plate is prepared. The drawing board includes a first wooden board and a second wooden board which is lower in brightness than the first wooden board and overlaps with the first wooden board on the base board side of the first wooden board in the thickness direction. In the drawing process, the surface of the decorative wood is irradiated with a laser to remove a part of the first wood board to expose the first region where the surface of the first wood board is exposed and the second region where the surface of the second wood board is exposed. By forming the surface of the decorative wood containing the wood and carbonizing the surface of the second wood board, the brightness of the surface of the second wood board is lowered as compared with that before the laser irradiation. In the drawing step, the surface of the second wooden board is carbonized by irradiation with a laser to form a first carbonized portion and a second carbonized portion having a lower brightness than the first carbonized portion in the second region.

According to the present disclosure, it is possible to provide a decorative wood having excellent expressive power and a method for producing the decorative wood.

It is a top view which shows typically the structure of the decorative wood which concerns on embodiment. It is sectional drawing along the line segment II-II in FIG. It is a figure which shows typically the carbonized part formed on the surface of the decorative wood which concerns on embodiment. It is a flowchart for demonstrating the manufacturing method of the decorative wood which concerns on embodiment. It is sectional drawing which shows typically the structure of the decorative wood used in the manufacturing method of the decorative wood which concerns on embodiment. It is a block diagram which shows typically the structure of the laser drawing apparatus used in the manufacturing method of the decorative wood which concerns on embodiment. It is a perspective view which shows typically the stage of the laser drawing apparatus used in the manufacturing method of the decorative wood which concerns on embodiment.

[Outline of Embodiment]
Decorative wood according to the present disclosure is decorated wood with a drawing on the surface. This decorative wood comprises a base plate and a drawing plate laminated on the base plate and including the surface. The drawing board includes a first wooden board and a second wooden board which is lower in brightness than the first wooden board and overlaps with the first wooden board on the base board side of the first wooden board in the thickness direction. The surface includes a first region where the surface of the first wood board is exposed and a second region where the surface of the second wood board is exposed when viewed in a direction perpendicular to the surface. The second region is a first carbonized portion formed by carbonizing the surface of the second wooden board and a second carbonized portion formed by carbonizing the surface of the second wooden board and having a lower brightness than the first carbonized portion. And, including.

In the above-mentioned decorated wood, a rich gradation (rich gradation) is obtained by combining the original brightness difference between a plurality of wooden boards (first wooden board and second wooden board) and the lightness difference within a single wooden board (second wooden board). Gradation) can be achieved. That is, according to the above-mentioned decorated wood, not only a structure in which a plurality of wooden boards having different brightness are stacked, but also a difference in brightness due to a difference in the degree of progress of carbonization on the surface of a single wooden board (second wooden board) is achieved. This, coupled with the original lightness difference between the first and second wood boards, can achieve continuous changes in lightness. Therefore, according to the present disclosure, it is possible to provide a decorative wood having an excellent expressive power as compared with the conventional one.

In the decorated wood, the first region is formed by carbonizing the surface of the first wood board to form a third carbonized portion and the surface of the first wood board by carbonizing the surface of the first wood board, and is lighter than the third carbonized part. It may contain a fourth carbonized portion having a low value. According to this configuration, rich gradation can be achieved more easily, and the expressive power of the decorated wood can be further enhanced.

In the decorative wood, the drawing board may further include a third wood board which has a lower brightness than the second wood board and which overlaps with the second wood board in the thickness direction on the base board side of the second wood board. The surface may further include a third region where the surface of the third wood board is exposed when viewed in a direction perpendicular to the surface. The third region is a fifth carbonized portion formed by carbonizing the surface of the third wooden board, and a sixth carbonized portion formed by carbonizing the surface of the third wooden board and having a lower brightness than the fifth carbonized portion. And may be included. According to this configuration, the expressive power can be further enhanced by the difference in the brightness of the first to third wooden boards and the difference in the brightness of the carbonized portion on the surface of the third wooden board.

In the above-mentioned decorative wood, the base plate may be thicker than the drawing plate. According to this configuration, it is possible to suppress the warp of the drawing plate in the thickness direction in the state where the drawing plate and the base plate are bonded together. This "warp" is caused by the repetition of expansion due to the wood absorbing moisture and contraction due to the wood exhaling moisture, and the wood is deformed so that one main surface is concave and the other main surface is convex. That is.

In the decorative wood, the base plate may include a first main surface on which drawing plates are laminated and a second main surface opposite to the first main surface in the thickness direction. The decorative wood may be laminated on the second main surface and further provided with a back plate which is less likely to warp in the thickness direction than the drawing plate. According to this configuration, it is possible to more effectively suppress the warp of the drawing plate in the thickness direction.

In the above-mentioned decorated wood, the back plate may be made of a resin material.

The decorated wood may constitute at least a part of a building material or furniture.

The method for producing decorative wood in accordance with the present disclosure is a preparatory step for preparing decorative wood, an installation step for installing decorative wood on a stage after the preparatory step, and a laser drawing after the installation step. It is equipped with a drawing process for drawing on the surface of decorative wood. In the preparatory step, decorative wood comprising a base plate and a drawing plate laminated on the base plate is prepared. The drawing board includes a first wooden board and a second wooden board which is lower in brightness than the first wooden board and overlaps with the first wooden board on the base board side of the first wooden board in the thickness direction. In the drawing process, the surface of the decorative wood is irradiated with a laser to remove a part of the first wood board to expose the first region where the surface of the first wood board is exposed and the second region where the surface of the second wood board is exposed. By forming the surface of the decorative wood containing the wood and carbonizing the surface of the second wood board, the brightness of the surface of the second wood board is lowered as compared with that before the laser irradiation. In the drawing step, the surface of the second wooden board is carbonized by irradiation with a laser to form a first carbonized portion and a second carbonized portion having a lower brightness than the first carbonized portion in the second region.

According to the method for producing decorative wood, the original brightness difference between a plurality of wooden boards (first wooden board and second wooden board) and the brightness difference within a single wooden board (second wooden board) are combined. Decorative wood with rich gradation can be obtained. That is, according to the above manufacturing method, a difference in brightness due to a difference in the degree of progress of carbonization on the surface of a single wood board (second wood board) is also achieved, which is the same as the original difference in brightness between the first wood board and the second wood board. Coupled with this, continuous changes in brightness can be achieved. Therefore, according to the method for producing decorative wood according to the present disclosure, it is possible to obtain decorative wood having superior expressive power as compared with the conventional method.

In the method for producing decorative wood, in the drawing step, the surface of the first wood board is carbonized by irradiation with a laser, so that the third carbonized portion and the third carbonized portion have lower brightness than the third carbonized portion in the first region. 4 Carbonized portions may be formed. According to this configuration, rich gradation can be achieved more easily, and the expressive power of the decorated wood can be further enhanced.

In the method for producing decorative wood, the drawing board may further include a third wood board which has a lower brightness than the second wood board and which overlaps with the second wood board in the thickness direction on the base board side of the second wood board. .. In the drawing process, a part of the second wooden board is removed to form a surface of decorative wood including a third region where the surface of the third wooden board is exposed, and the surface of the third wooden board is carbonized to form the third wooden board. The brightness of the surface of the surface may be lower than that before irradiation with the laser. In the drawing step, by carbonizing the surface of the third wooden board by irradiation with a laser, a fifth carbonized portion and a sixth carbonized portion having a lower brightness than the fifth carbonized portion may be formed in the third region. good. According to this method, the expressive power can be further enhanced by the difference in the brightness of the first to third wooden boards and the difference in the brightness of the carbonized portion on the surface of the third wooden board.

In the method for producing decorative wood, in the drawing step, when the third region is formed, the laser may be irradiated with a larger output than when the second region is formed. As a result, the difference in brightness between the second region and the third region becomes clearer depending on the magnitude of the laser output, so that the expressive power can be further enhanced.

[Specific example of embodiment]
Next, an example of a specific embodiment of the decorated wood of the present disclosure and the method for producing the decorated wood will be described with reference to the drawings. In the following drawings, the same or corresponding parts are given the same reference number, and the description is not repeated.

(Decorated wood)
First, the configuration of the decorated wood 1 according to the present embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a schematic plan view of the surface 1A of the decorated wood 1 when viewed in a direction perpendicular to the surface 1A. FIG. 2 is a cross-sectional view of the decorated wood 1 along the line segments II-II in FIG. FIG. 3 is a diagram schematically showing a carbonized portion formed on the surface 1A of the decorated wood 1.

The decorated wood 1 according to the present embodiment constitutes at least a part of a building material such as an interior material, and the surface 1A is drawn. Specifically, as shown in FIG. 1, an ink painting-style picture 100 is drawn substantially in the center of the surface 1A. The decorated lumber 1 is used in a building, for example, as a wall material, a floor material, a ceiling material, or the like. The decorated wood 1 is not limited to building materials, and may be, for example, a piece of furniture such as a table or a chair, a small item such as a smartphone case, or a wall-mounted panel. .. Further, the picture 100 drawn on the surface 1A is not limited to the ink painting style picture. As shown in FIG. 2, the decorated wood 1 mainly includes a base plate 10, a drawing plate 20, and a back plate 30.

The base plate 10 is made of, for example, plywood. As shown in FIG. 2, the base plate 10 includes a first main surface 11 facing one side in the thickness direction and a second main surface 12 opposite to the first main surface 11 in the thickness direction. The base plate 10 in the present embodiment is thicker than the drawing plate 20, but is not limited thereto.

A picture 100 (FIG. 1) is drawn on the drawing board 20. The drawing plate 20 is laminated on the base plate 10, specifically on the first main surface 11. The drawing plate 20 is attached to the first main surface 11 of the base plate 10 with, for example, an adhesive or the like. As shown in FIG. 2, the drawing board 20 includes a first wooden board 21, a second wooden board 22 that overlaps with the first wooden board 21 on the base board 10 side of the first wooden board 21, and the second wooden board 22. A third wooden board 23 that overlaps the second wooden board 22 in the thickness direction on the base board 10 side of the wooden board 22 is included. That is, the first wooden board 21, the second wooden board 22, and the third wooden board 23 are laminated in this order from the front surface 1A to the back surface 1B. The first wooden board 21 includes the surface 1A (outermost surface) of the decorated wood 1. For example, clear coating or the like is applied to the surface 1A. Of the first wooden board 21, the second wooden board 22, and the third wooden board 23, the wooden boards adjacent to each other in the thickness direction are bonded to each other by, for example, an adhesive.

The first wooden board 21, the second wooden board 22, and the third wooden board 23 are all veneers and have a thickness of about several millimeters. The second wooden board 22 is a wooden board having a lower brightness than the first wooden board 21. The third wooden board 23 is a wooden board having a lower brightness than the second wooden board 22. That is, the drawing board 20 is formed by stacking a plurality of wooden boards in the thickness direction so that the brightness of the wooden boards gradually decreases from the front surface 1A to the back surface 1B. In the present embodiment, the first wooden board 21 is a white veneer with a clear coating on the surface, the second wooden board 22 is a gray veneer, and the third wooden board 23 is a black veneer. However, the first wood board 21, the second wood board 22, and the third wood board 23 are not limited to the achromatic veneer, and may be a chromatic veneer such as red, blue, or purple.

The back plate 30 is a plate that is less likely to warp in the thickness direction than the base plate 10 and the drawing plate 20. As shown in FIG. 2, the back plate 30 is laminated on the second main surface 12 of the base plate 10, and is bonded to the second main surface 12 with an adhesive or the like. The back plate 30 includes the back surface 1B of the decorated wood 1. The back plate 30 in the present embodiment is made of a resin material such as melamine resin, but is not limited thereto.

In the decorated wood 1, the surface 1A includes a first region R1, a second region R2, and a third region R3 when viewed in a direction perpendicular to the surface 1A. As shown in FIG. 2, the first region R1 is a region where the surface of the first wooden board 21 is exposed. The second region R2 is a region where the surface of the second wooden board 22 is exposed, and is formed by, for example, removing a part of the first wooden board 21 with a laser. The third region R3 is a region where the surface of the third wood board 23 is exposed, and is formed by, for example, removing a part of the first wood board 21 and a part of the second wood board 22 with a laser. Therefore, the surface 1A of the decorated wood 1 contains irregularities.

As shown in FIG. 3, in the second region R2, a first carbonized portion 61 formed by carbonizing the surface of the second wooden board 22 and a first carbonized portion 61 of the surface of the second wooden board 22 are formed. It includes a second carbonized portion 62 formed by carbonizing the non-carbonized region. The second carbonized portion 62 is a portion where carbonization of the surface of the second wooden board 22 has progressed as compared with the first carbonized portion 61, and the brightness is lower than that of the first carbonized portion 61. That is, on the surface of the second wood board 22 (second region R2), a plurality of regions having different brightness due to different degrees of carbonization progress of the second wood board 22 are mixed. The second region R2 may further contain a second uncarbonized portion on the surface of the second wooden board 22 in which carbonization has not progressed.

In the first region R1, the third carbonized portion 63 formed by carbonizing the surface of the first wooden board 21 and the region of the surface of the first wooden board 21 where the third carbonized portion 63 is not formed are carbonized. Includes a fourth carbonized portion 64 formed by. The fourth carbonized portion 64 is a portion where carbonization of the surface of the first wooden board 21 has progressed as compared with the third carbonized portion 63, and the brightness is lower than that of the third carbonized portion 63. On the other hand, the fourth carbonized portion 64 has a higher brightness than the second uncarbonized portion. In the present embodiment, a plurality of regions having different brightness due to different degrees of carbonization progress of the first wooden board 21 are mixed on the surface of the first wooden board 21 (first region R1). The third carbonized portion 63 and the fourth carbonized portion 64 are not essential configurations, and one or both of them may be omitted. Further, the first region R1 may further include a first uncarbonized portion on the surface of the first wooden board 21 in which carbonization has not progressed.

In the third region R3, the fifth carbonized portion 65 formed by carbonizing the surface of the third wooden board 23 and the region of the surface of the third wooden board 23 where the fifth carbonized portion 65 is not formed are carbonized. Includes a sixth carbonized portion 66 formed by. The sixth carbonized portion 66 is a portion where carbonization of the surface of the third wood board 23 has progressed as compared with the fifth carbonized portion 65, and the brightness is lower than that of the fifth carbonized portion 65. The fifth carbonized portion 65 has a lower brightness than the second carbonized portion 62. In the present embodiment, on the surface of the third wooden board 23 (third region R3), a plurality of regions having different brightness due to different degrees of carbonization progress of the third wooden board 23 are mixed. The fifth carbonized portion 65 and the sixth carbonized portion 66 are not essential configurations, and one or both of them may be omitted. Further, the third region R3 may further include a third uncarbonized portion on the surface of the third wooden board 23 in which carbonization has not progressed. In this case, the third uncarbonized portion has a lower brightness than the second carbonized portion 62.

As described above, on the surface 1A of the decorated wood 1 according to the present embodiment, the picture 100 (FIG. 1) is drawn by the continuous difference in brightness in the first to third regions R1 to R3. Hereinafter, the process of drawing the picture 100 by laser drawing will be described.

(Manufacturing method of decorative wood)
Next, a method for manufacturing the decorated wood according to the present embodiment will be described with reference to the flowchart of FIG. In this method, as described below, a picture 100 (FIG. 1) is drawn on the surface of wood by laser drawing.

First, decorative wood is prepared (preparation step S10). In this step S10, the decorative wood 40 of FIG. 5 is prepared. As shown in FIG. 5, the decorative wood 40 has the entire surface 1A as the surface of the first wooden board 21. Since the other points are the same as those of the decorated wood 1 of FIG. 1, detailed description thereof will be omitted.

Next, the decorative wood 40 prepared in the above step S10 is installed on the stage of the laser drawing apparatus (installation step S20). Here, a schematic configuration of the laser drawing apparatus 50 used in the present manufacturing method will be described with reference to FIGS. 6 and 7.

FIG. 6 is a block diagram schematically showing the configuration of the laser drawing apparatus 50. FIG. 7 is a perspective view schematically showing the stage 51 of the laser drawing apparatus 50. As shown in FIGS. 6 and 7, the laser drawing apparatus 50 includes a stage 51, a drawing data input unit 53, a storage unit 54, a control unit 55, a laser irradiation unit 52, and a stage drive unit 56. ing. The stage 51 includes a stage surface 51A on which the decorative wood 40 is installed, and is configured to be movable in an XY plane. The laser irradiation unit 52 is a portion that irradiates the laser L1 (for example, a pulse laser or a galvano laser) toward the stage surface 51A, and includes a laser light source, a lens, a mirror, and the like.

The drawing data of the picture 100 (FIG. 1) is input to the drawing data input unit 53. This drawing data includes the relationship between the XY coordinates and the output of the laser L1. The drawing data is stored in the storage unit 54. The control unit 55 controls the laser irradiation unit 52 and the stage drive unit 56 based on the drawing data stored in the storage unit 54, and controls the output of the laser L1 and the XY coordinates of the stage 51.

Next, the drawing data of the picture 100 (FIG. 1) is input to the drawing data input unit 53 (FIG. 5) (step S30). After that, drawing is performed on the surface 1A of the decorative wood 40 by laser drawing (drawing step S40). In this step S40, a part of the first wood board 21 and a part of the second wood 22 are removed so that the first region R1, the second region R2, and the third region R3 are formed. More specifically, based on the drawing data input in the step S30, the stage drive unit 56 moves the stage 51 in the XY plane while adjusting the output of the laser L1 from the laser irradiation unit 52. The stage 51 may be moved and the laser irradiation unit 52 may be moved, or the laser irradiation unit 52 may be moved without moving the stage 51.

In the drawing step S40, the surface 1A of the decorative wood 40 is irradiated with the laser L1, and a part of the first wood board 21 and a part of the second wood board 22 are removed to expose the surface of the first wood board 21. The surface 1A of the decorative wood 40 including the second region R2 where the surfaces of R1 and the second wood board 22 are exposed and the third region R3 where the surface of the third wood board 23 is exposed is formed, and the surface of the second wood board 22 and the second wood board 22 are formed. 3. By carbonizing the surface of the wood board 23, the brightness of the surface of the second wood board 22 and the surface of the third wood board 23 is lowered as compared with that before the laser irradiation. More specifically, in the drawing step S40, the surface of the second wood board 22 and the surface of the third wood board 23 are carbonized by irradiation with the laser L1, so that the first carbonized portion 61 and the second carbonized portion are contained in the second region R2. Along with forming the portion 62, the fifth carbonized portion 65 and the sixth carbonized portion 66 are formed in the third region R3. Further, in the drawing step S40, the surface of the first wood board 21 is carbonized by irradiation with the laser L1 to form the third carbonized portion 63 and the fourth carbonized portion 64 in the first region R1.

In this step S40, when the third region R3 is formed, the laser L1 is irradiated with a higher output than when the second region R2 is formed. As a result, the lightness of the third wooden board 23 becomes lower due to the irradiation of the high-power laser L1, and the picture 100 with clearer shades is drawn. The irradiation time of the laser L1 may be longer when the third region R3 is formed than when the second region R2 is formed.

In the drawing step S40, the degree of carbonization progress is changed in the surface of a single wooden board depending on the output of the laser L1 and / or the irradiation time. Specifically, when the surface of the first wooden board 21 is irradiated with the laser L1, the output of the laser L1 is made larger when the fourth carbonized portion 64 is formed than when the third carbonized portion 63 is formed. The irradiation time of the laser L1 may be lengthened, or both may be performed. When irradiating the surface of the second wooden board 22 with the laser L1, the output of the laser L1 may be larger when the second carbonized portion 62 is formed than when the first carbonized portion 61 is formed. The irradiation time of the laser L1 may be lengthened, or both may be performed. When irradiating the surface of the third wooden board 23 with the laser L1, the output of the laser L1 may be larger when the sixth carbonized portion 66 is formed than when the fifth carbonized portion 65 is formed. The irradiation time of the laser L1 may be lengthened, or both may be performed.

In this way, the surface 1A of the decorative wood 40 is irradiated with the laser L1 to remove a part of the first wood board 21 and a part of the second wood board 22, thereby forming the first region R1 and the second region R2. A third region R3 is formed, respectively. As a result, unevenness and a difference in brightness (shades) are formed on the surface 1A, and a picture 100 (FIG. 1) is drawn. After the laser drawing is completed, the completed decorative wood 1 is removed from the stage 51.

As described above, in the decorated wood 1 according to the present embodiment, the surface of the first region R1 where the surface of the first wood board 21 is exposed and the surface of the second region R2 and the third wood board 23 where the surface of the second wood board 22 is exposed. Since the third region R3 to which is exposed is formed, the surface 1A of the wood can be drawn by the difference in brightness (shading) between the first to third wooden boards 21 to 23. According to the decorated wood 1, it is possible to achieve higher expressive power than before depending on the position and area forming the first to third regions R1 to R3.

Moreover, according to the decorated wood 1, the original brightness difference between a plurality of wooden boards (first to third wooden boards 21 to 23) and the lightness difference within the surface of a single wooden board are combined to make the wood rich. It is possible to achieve various gradations. That is, according to the decorated wood 1, not only the first to third wooden boards 21 to 23 having different lightness are stacked, but also the difference in lightness due to the difference in the degree of progress of carbonization in the surface of a single wooden board. Achieved, which, coupled with the original lightness difference of the first to third wood boards, can achieve a continuous change in lightness.

Here, other embodiments will be described.

The drawing board 20 is not limited to the case of the first to third wooden boards 21 to 23, has a lower brightness than the third wooden board 23, and is a fourth wooden board laminated on the base board 10 side of the third wooden board 23. (Not shown) may be further included. That is, the drawing board 20 may have a four-layer structure of the first to fourth wooden boards. Further, the third wooden board 23 may be omitted, and the drawing board 20 may have a two-layer structure of the first and second wooden boards.

The back plate 30 is not an essential configuration in the decorative wood of the present disclosure and may be omitted.

In the above embodiment, the case where the picture 100 (FIG. 1) is drawn by laser drawing has been described as an example, but the present invention is not limited to this, and a part of the first wooden board 21 and a part of the second wooden board 22 are formed by other means. It may be removed.

In the above embodiment, the case where the step S20 is carried out before the step S30 has been described as an example, but the present invention is not limited to this, and the step S30 may be carried out before the step S20.

It should be understood that the embodiments disclosed this time are exemplary in all respects and are not restrictive. The scope of the present invention is shown not by the above description but by the scope of claims, and all modifications within the meaning and scope equivalent to the scope of claims are intended.

1 Decorative wood, 1A front, 1B back, 10 base board, 11 first main surface, 12 second main surface, 20 drawing board, 21 first wood board, 22 second wood board, 23 third wood board, 30 back board, 40 Decorative wood, 50 Laser drawing device, 51 stage, 51A stage surface, 52 Laser irradiation unit, 53 Drawing data input unit, 54 Storage unit, 55 Control unit, 56 Stage drive unit, 61 First carbonization unit, 62 Second Carbonized part, 63 3rd carbonized part, 64 4th carbonized part, 65 5th carbonized part, 66 6th carbonized part, 100 pictures, L1 laser, R1 1st region, R2 2nd region, R3 3rd region.

Claims (11)

Decorative wood with a drawing on the surface
With the base plate
A drawing plate laminated on the base plate and including the surface.
The drawing board is
The first wooden board and
A second wooden board having a lower brightness than the first wooden board and overlapping the first wooden board in the thickness direction on the base board side of the first wooden board is included.
The surface is viewed in a direction perpendicular to the surface.
The first region where the surface of the first wooden board is exposed and
Includes a second region where the surface of the second wood board is exposed,
The second region is
The first carbonized portion formed by carbonizing the surface of the second wooden board,
Decorative wood comprising a second carbonized portion formed by carbonizing the surface of the second wood board and having a lower brightness than the first carbonized portion. The first region is
A third carbonized portion formed by carbonizing the surface of the first wooden board,
The decorative wood according to claim 1, further comprising a fourth carbonized portion formed by carbonizing the surface of the first wooden board and having a lower brightness than the third carbonized portion. The drawing board is lower in brightness than the second wood board, and further includes a third wood board that overlaps the second wood board in the thickness direction on the base board side of the second wood board.
The surface further comprises a third region where the surface of the third wood board is exposed when viewed in a direction perpendicular to the surface.
The third region is
A fifth carbonized portion formed by carbonizing the surface of the third wooden board, and
The decorative wood according to claim 1 or 2, comprising a sixth carbonized portion formed by carbonizing the surface of the third wooden board and having a lower brightness than the fifth carbonized portion. The decorative wood according to any one of claims 1 to 3, wherein the base plate is thicker than the drawing plate. The base plate is
The first main surface on which the drawing plates are laminated and
Including the first main surface and the second main surface opposite to the first main surface in the thickness direction.
The decorative wood according to any one of claims 1 to 4, further comprising a back plate which is laminated on the second main surface and is less likely to warp in the thickness direction than the drawing plate. The decorative wood according to claim 5, wherein the back plate is made of a resin material. The decorative wood according to any one of claims 1 to 6, which constitutes at least a part of a building material or furniture. The preparatory process for preparing decorative wood,
After the preparatory step, the installation step of installing the decorative wood on the stage and
After the installation step, a drawing step of drawing on the surface of the decorative wood by laser drawing is provided.
In the preparation step, the decorative wood including the base plate and the drawing plate laminated on the base plate is prepared.
The drawing board includes a first wooden board and a second wooden board having a lower brightness than the first wooden board and overlapping the first wooden board on the base board side of the first wooden board in the thickness direction.
In the drawing step, the surface of the decorative wood is irradiated with a laser to remove a part of the first wood board, so that the first region where the surface of the first wood board is exposed and the surface of the second wood board are exposed. By forming the surface of the decorative wood including the exposed second region and carbonizing the surface of the second wood board, the brightness of the surface of the second wood board is lowered as compared with that before irradiation with the laser.
In the drawing step, by carbonizing the surface of the second wooden board by irradiation with a laser, a first carbonized portion and a second carbonized portion having a lower brightness than the first carbonized portion are formed in the second region. How to make decorative wood to form. In the drawing step, by carbonizing the surface of the first wooden board by irradiation with a laser, a third carbonized portion and a fourth carbonized portion having a lower brightness than the third carbonized portion are formed in the first region. The method for producing decorative wood according to claim 8. The drawing board is lower in brightness than the second wood board, and further includes a third wood board that overlaps the second wood board in the thickness direction on the base board side of the second wood board.
In the drawing step, a part of the second wooden board is removed to form a surface of the decorative wood including a third region where the surface of the third wooden board is exposed, and the surface of the third wooden board is carbonized. As a result, the brightness of the surface of the third wooden board is lowered as compared with that before the irradiation of the laser.
In the drawing step, by carbonizing the surface of the third wooden board by irradiation with a laser, a fifth carbonized portion and a sixth carbonized portion having a lower brightness than the fifth carbonized portion are formed in the third region. The method for producing decorative wood according to claim 8 or 9. The method for producing decorative wood according to claim 10, wherein in the drawing step, when the third region is formed, the laser is irradiated with a larger output than when the second region is formed.

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