JPH0811276A - Method of manufacturing uneven decorative board - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a method for manufacturing a textured decorative sheet that can easily and inexpensively mass-produce the textured decorative sheet having a new texture and a design effect. [Structure] Concealment paper 1 is provided on the surface of substrate 11 with adhesive 12.
3 is attached, and then the primer layer 14 is formed on the concealing paper 13.
To provide. In addition, the surface of the natural wood is rubbed with a brush or chemically treated with chemicals to create a manuscript with an uneven pattern depending on the hardness and sparseness of the wood tissue, and then produced based on this manuscript. Create a template. Then, a fluid resin 15 was poured on the primer layer 14 of the substrate 11, a production mold was placed on the resin 15 and the resin 15 was cured and then peeled off, and the uneven pattern of the original was transferred to the surface as a conduit pattern 15a. The concavo-convex resin layer 15 is formed, and then the conduit groove 15a of the resin layer 15 is filled with the coloring agent 7 containing the bright pigment.
It was colored by filling with 2 and then the surface of the resin layer 15 was covered with the top coat layer 17 including the conduit pattern 15a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a textured decorative board, and in particular, for manufacturing a textured decorative board having a high texture by using a production mold in which a conduit pattern or the like appearing on the surface of natural wood is molded. Manufacturing method.

[0002]

2. Description of the Related Art As a conventional method for manufacturing a textured decorative board,
JP-B-64-1308 or JP-A-4-119.
Those described in Japanese Patent No. 847, etc. are known. The former Japanese Examined Patent Publication No. 64-1308 describes that the surface of a natural wood is brushed to make a spring material part a recess, and a colorant layer containing a pearl pigment is provided in the recess. Further, the latter Japanese Patent Laid-Open No. 4-119847 describes a method in which a conduit pattern on the surface of a veneer of natural wood is taken out and transferred as an uneven pattern on the surface of a polyester resin, and the concave part of this uneven pattern is filled with a colorant. It

[0003]

However, in the former manufacturing method described in Japanese Examined Patent Publication No. Sho 64-1308, since natural wood itself is used as a decorative board, there is unevenness in physical and chemical properties. Since the shape and size of the recesses of the spring wood part after brushing differ from one piece to another, it is difficult to obtain the uniformity of the grain pattern, and since it is necessary to brush each piece, mass production However, there is a problem that it is not possible to produce a design-like fun with the same. Further, even in the latter method described in Japanese Patent Laid-Open No. 4-119847, there is a problem that the conduit pattern of natural wood only appears as an uneven pattern, and it is not possible to produce a design fun. There is a problem that it is difficult to express clearly and to produce high quality. The present invention has been made in view of the above problems, and physical or chemical properties of natural wood can also be expressed as a concavo-convex pattern to produce a design fun, and a method for producing a concavo-convex decorative board suitable for mass production. The purpose is to provide.

[0004]

In order to achieve the above-mentioned object, the method for producing an uneven decorative board according to the present invention represents unevenness as a difference in hardness due to the texture structure of the natural wood surface, or a conduit pattern. A step of creating an original in which the original is emphasized, a step of creating a production die by forming an uneven pattern on the surface of the original, and a flowable resin is poured onto the substrate to form the flowable resin. An uneven resin layer that covers the production mold on top and peels off the production mold after the fluid resin is cured to form an uneven resin layer having a conduit groove on the surface of which the uneven pattern is transferred, on the substrate. And a wiping step of coloring the conduit groove on the surface of the concavo-convex resin layer with a coloring agent containing a bright pigment.

In the method for manufacturing a textured decorative board of the present invention, the resin layer is semitransparent or opaque (claim 2), and the resin layer has a color with a high lightness, preferably a lightness of 7 With respect to 100 m parts of the titanium dioxide-coated mica having the above-mentioned luster pigment, 3 parts of the mica foil in which low-order titanium oxide produced by reducing the titanium dioxide-coated mica is further coated with titanium dioxide is used. It can be configured in a mode in which 15 parts are mixed (claim 3).

[0006]

According to the method for producing a textured decorative board of the present invention, since the original is prepared by subjecting the surface of the veneer or the natural wood to rubbing with a brush or the like and chemical treatment with chemicals, the original is not only a conduit pattern but also a natural pattern. It is also possible to represent the physical or chemical characteristics of wood or the like as a concavo-convex pattern, and also to add a design element. Therefore, by manufacturing the uneven decorative plate using the production mold created based on this original, it is possible to produce a design-like fun on the uneven decorative plate and obtain a high texture. Furthermore, in this manufacturing method, since the conduit groove of the concavo-convex resin layer is colored with a coloring agent containing a bright pigment, the conduit groove, that is, the conduit pattern is shown in a distinctive manner, and the design of a different taste is obtained. It is also possible to create realistic productions,
Higher texture and product value can be obtained. Further, in particular, by increasing the width dimension of the conduit groove, not only a bright pigment having a small particle size, but also a large amount of a colorant containing a bright pigment having a large particle size can be filled in the conduit groove, and excellent brightness characteristics can be obtained. Can be demonstrated.

Further, in the method for producing a textured decorative board of the present invention, the conduit pattern can be more clearly expressed by making the textured resin layer opaque (Claim 2), and titanium dioxide coating as a bright pigment is provided. By using a mixture of mica and low-order titanium oxide produced by reducing titanium dioxide-coated mica with mica foil coated with titanium dioxide, excellent glittering characteristics can be exhibited (claim 3).

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are views for explaining a method for manufacturing a wood grain decorative board manufacturing mold according to an embodiment of the present invention, and FIG. 1 is a cross-sectional view schematically showing a state when a prototype mold is manufactured. 2 is a cross-sectional view schematically showing a state in which the replication mold is produced, FIG. 3 is a cross-sectional view schematically showing a state in which the production mold is produced, and FIG. It is a schematic cross section of the manufactured wood grain decorative board.

In this embodiment, a manuscript is prepared (manufacturing process of the manuscript), a prototype is formed based on this manuscript (manufacturing process of the master mold), and a replica mold is prepared from the master mold ( A step of producing a duplicate document), a production die is further produced from the duplication die (production die production step), and the wood grain decorative board is produced using the molding die (decorative board production step). Hereinafter, each step will be described for each step.

(1) Manuscript preparation process Using natural wood or a veneer as a manuscript material, the surface of this manuscript material is polished with a belt sander or the like to adjust the material (smoothing the surface), and then the surface of the manuscript material Is rubbed with a nylon brush coated with abrasive grains (rubbing treatment). As a concrete example, for example, a plywood 21 having a thickness of 4 mm is attached with a plucking plate (original) 22 (see FIG. 1), and the plucking plate 22 is
After polishing the surface (hereinafter collectively referred to as natural wood) with sanding paper No. 320 for smoothing, the smoothed surface is coated with abrasive grains and is an electric nylon brush, for example, Makita. Scrape with a wheel sander manufactured by Co., Ltd.

Here, using the nylon brush, natural wood 22
By rubbing the surface of the natural wood 22, the surface of the natural wood 22 has a concave-convex pattern in which the soft portion is concave according to the difference in hardness between the hard portion and the soft portion of the surface texture, in other words, the hardness of the surface texture. A corresponding uneven pattern is formed. In other words, in the smoothing process, the parts other than the conduit become almost flat, but the smoothing process followed by the rubbing process causes the difference in the hardness and softness of the tissue even in the flat part (for example, the difference between the spring wood part and the autumn wood part). A concave portion (concavo-convex pattern) 22a (see FIG. 1) corresponding to the difference between the fiber portion and the lignin, the difference in hardness between the presence or absence of a cord and the like is displayed. Then, using the natural wood on which the uneven pattern 22a corresponding to the difference in hardness of the tissue is formed as an original, a prototype is produced in the next step.

The rubbing process in the above-mentioned document manufacturing process is not limited to the above-mentioned process, and the following processes 1 to
8 can be substituted, and two or more processes can be performed together.

Treatment 1 After the smoothing treatment, rubbing with a nylon brush coated with abrasive grains to dig up the conduit to deepen and widen the width of the conduit. -Treatment 2 Even if there is no conduit such as coniferous wood, rub it with the above nylon brush and soften it according to the difference in hardness between the hard parts such as the autumn wood and knots and the soft parts such as the spring wood. A process of forming a concave-convex pattern corresponding to the difference in hardness between the concave and convex portions.・ Treatment 3 Separate from the uneven pattern according to the hardness difference of the natural wood surface, rub it with a nylon brush or a metal brush (roughness 80, 100, 240 mesh) to form a hairline-shaped recess along the flow line of the brush. processing. -Treatment 4 A treatment in which the surface of natural wood is roughly cut with a special blade to leave a cut mark. Treatment 5 A treatment of applying a chemical such as sulfuric acid to the surface of natural wood to deteriorate the surface texture, and then rubbing the surface with a metal brush or the like to form an uneven pattern due to the difference in deterioration due to sulfuric acid. -Treatment 6 A treatment of burning the surface of the natural wood with a burner or the like and then rubbing it with a metal brush or the like to form an uneven pattern corresponding to the difference in heat deterioration of the surface texture. -Process 7 A process in which a veneer is attached to an aluminum plate, rubber sheets are overlaid, and heat and pressure are applied to form an uneven pattern according to the density difference of the veneer structure. -Process 8 A process of sandblasting the surface of natural wood to form an uneven pattern according to hardness and softness.

(2) Process for Producing the Prototype In this process, as shown in FIG. 1, a silicone resin (for example, a silicone resin, for example, on the surface of the relief plate 22 produced in the above process, that is, the face on which the uneven pattern 22a is formed, is used. , Shin-Etsu Chemical Co., Ltd. KE1300T) 31 0.1-1.0
The silicone resin 31 is hardened by applying it as evenly as possible so as to have a thickness of mm. Then, a silicone resin 32 is further added on the silicone resin 31 by 0.1 to 1.0.
The silk screen stencil is applied as evenly as possible to a thickness of mm and stretched over the silicone resin 32 in a frame 33 (for example, 100 mesh made by Tetron)
Put on 34. Here, in the stencil 34, the silicone resin 32 exudes on the upper side thereof, sinks into the silicone resin 32, and is buried in the silicone resin 32. Then, when the silicone resin 32 is hardened and integrally fixed to the stencil 34 and the silicone resin 31, the silicone resins 31, 32 and the stencil 34 are peeled off from the bump plate 22 and used as the prototype mold 30. The original mold 30 is formed with a concave-convex pattern 31a formed by transferring, that is, the concave-convex pattern 22a of the convex plate 22 described above.

In the above process, it is possible to coat the stencil 34 on the silicone resin 31 and then to coat the silicone resin 32. Further, after the stencil 34 is coated on the silicone resin 32, three layers are further added. It is also possible to apply an eye silicone resin.

(3) Process for producing duplication mold In this process, as shown in FIG. 2, an aluminum plate having a thickness of about 2 mm, an MDF having a thickness of about 4.0 to 5.5 mm or a thickness of about 4.0 mm to 5.5 mm. A urethane paint-based primer layer (for example, Stron Stop Sealer 5 manufactured by Cashew Co., Ltd.) on a base material 41 such as a particle board having a size of 7 to 10 mm.
No.) 43, and the primer layer 43 is dried and semi-cured for several hours. Then, the resin 42 such as unsaturated polyester is poured on the primer layer 43 to cover the original mold 30, and while defoaming, the resin is spread by pressing with a roll or the like from the back side of the original mold 30 to cure the resin 42. Let Then, after curing, the original mold 30 is peeled off, and the uneven pattern 42 in which the uneven pattern 31 a of the original mold 30 is transferred to the resin 42 on the base material 41.
A duplication die 40 having a is obtained, and defects such as scratches and bubbles in the duplication die 40 are repaired.

(4) Production Mold Production Process In this process, as shown in FIG.
Is covered with a thermoplastic sheet 51, and then, while the thermoplastic sheet 51 is covered with the duplication mold 40, the uneven pattern 42a of the duplication mold 40 is transferred to the thermoplastic sheet 51 by a hot press for production. Obtain the mold 50. This production mold 50 has an uneven pattern 42 of the replication mold 40 on the surface of the sheet 51.
It has an uneven pattern 51a to which a is transferred.

In this step, the production die 50 can be produced in the same manner as the production of the original die 30. That is, after applying a barrier coat to the surface of the replication mold 40 in order to block the curing catalyst poison of the silicone resin,
Silicone resin (for example, K manufactured by Shin-Etsu Chemical Co., Ltd.
E1300T) is applied to a thickness of about 1 mm, dried and cured, then covered with a stencil and further covered with a silicone resin, and the stencil is embedded in the silicone resin. Then, after the silicone resin is cured, the silicone resin is peeled off from the replication mold 40 integrally with the stencil,
A production mold 50 in which a resin pattern is formed is obtained.

(5) Decorative board production process In this step, a decorative board as shown in FIG. 4 is produced. First, the concealment paper 13 is attached to the base material 11 with the adhesive 12. The base material 11 is an aluminum plate having a thickness of about 2 mm, an MDF (medium density fiber board) having a thickness of about 5 mm, or a thickness of 7 to 7.
A particle board of about 10 mm or the like, and as the concealing paper 13, titanium paper or thin paper for building materials, for example, white titanium paper (60 g / m ² ) is used, and they are bonded under the following bonding conditions. Adhesion conditions-Adhesive CV-3105 (manufactured by Konishi Co., Ltd.) or CVC-36 (manufactured by Konishi Co., Ltd.)-Coating amount wet 6 g / scale ² by coating using a natural roll coater-Temperature room temperature-Pressure 5 ~8kg / cm 30 min before and after between ^{2-pressurization}

Then, a primer layer (undercoat layer) 14 is formed on the concealing paper 13 from a material having the following composition by coating using a natural roll coater. Primer layer material-Main agent UV-28 (polyol type) (manufactured by Gengen Kagaku Co., Ltd.) 50 parts-Curing agent CB-19 (isocyanate type) (manufactured by Gengen Kagaku Co., Ltd.) 50 parts-Colored pigment PCN toner (Tokyo Ink Co., Ltd. 20 parts to 50 parts Diluent TU-40 (Gengen Chemical Co., Ltd.) Appropriate amount

Next, a fluid resin 15 having the following composition is poured onto the primer layer 14, the production mold 50 is covered on the resin (layer) 15, and the production mold 50 is pressed with a roll or the like. The resin to extend the primer layer 1 of the base material 11.
Spread on top of 4.

Composition of fluid resin-Unsaturated polyester resin Gosselac 500B (manufactured by Nippon Synthetic Chemical Industry Co., Ltd.) Gosellac 510A (manufactured by Nippon Synthetic Chemistry Co., Ltd.) Goserac 770 (manufactured by Nippon Synthetic Chemistry Co., Ltd.) Ester R280 (Mitsui East) Pressure chemical (manufactured by Mitsui Toatsu Chemical Co., Ltd.) and Ester R1710 (manufactured by Mitsui Toatsu Chemical Co., Ltd.) mixed 1: 1 Esther CR211 (manufactured by Mitsui Toatsu Chemical Co., Ltd.) 100 parts of the above Accelerator Cobalt naphthenate (6%) Ester EP400 (manufactured by Mitsui Toatsu Chemical Co., Ltd.) Ester EP440 (manufactured by Mitsui Toatsu Chemical Co., Ltd.) 0.5 to 1.5 parts, and any of 0. 3 to 1.5 parts • 0.1 to 2.0 parts of a curing accelerator, methyl acetoacetate Ester EP440 (manufactured by Mitsui Toatsu Chemicals, Inc.) • Hardener Permec N 1.0 to 3.0 parts of either Permek H (manufactured by Nippon Oil & Fats Co., Ltd.)-Colored pigment PCN toner (manufactured by Tokyo Ink Co., Ltd.) 5 to 20 parts Since the resin layer and the primer layer have the same color, the same material as the above-mentioned primer layer 14 is used.

After the resin 15 is hardened, the production mold 50 is peeled off. Here, the resin layer (uneven resin layer) 15
Is opaque in the same color as the primer layer 14, and an uneven pattern (conduit groove, concave) 15a to which the uneven pattern 51a of the production mold 50 is transferred is formed on the surface thereof. The resin layer 15 may be colored translucent, colored transparent, or colorless transparent, but in order to exhibit a better aesthetic appearance in connection with the sealing resin for the wiping layer, which will be described later, it is semi-transparent. Transparent or opaque is preferable.

Subsequently, the recess 15 on the upper surface of the resin layer 15 is formed.
The wiping paint layer 16 is formed by filling a colorant 72 containing a bright pigment in a space to be filled. The following coloring materials are used as the brightening pigment for the coloring agent 72. Silver-based titanium dioxide-coated mica only Iris-based titanium dioxide-coated mica only Titanium dioxide-coated mica foil further coated with titanium dioxide of lower titanium oxide Silver-based titanium dioxide-coated mica and iris-based titanium dioxide coated A mixture of mica and silver-based titanium dioxide-coated mica, and a mixture of mica foil in which low-order titanium oxide produced by reducing titanium dioxide-coated mica is further coated with titanium dioxide Iris-based titanium dioxide-coated mica, A mixture of low-order titanium oxide produced by reducing titanium dioxide-coated mica with a mica foil further coated with titanium dioxide. Desirably, the bright pigment 72 is 100 parts by weight of titanium dioxide-coated mica. , Titanium dioxide coated mica was reduced to form a lower titanium oxide, which was further coated with titanium dioxide. Which was a mica foil was mixed about 3 to 15 parts, that the particle size of about 5μm~60μm is used.

However, the types of the luster pigments contained are such that the silver-based titanium dioxide-coated mica has a white (shining white) luster color effect and the iris-based titanium dioxide-coated mica is rich in color change. The mica foil obtained by further coating titanium dioxide with a low-order titanium oxide produced by reducing the titanium dioxide-coated mica is selected according to the application because it has a property of exhibiting high glitter with concealing property,
Further, the particle size thereof is also appropriately selected according to the required brightness and the width dimension of the conduit groove.

Specifically, in this embodiment, the following is used as the color pigment 72 containing the bright pigment, and the color pigment 72 extends in the recess 15a (the flow direction of the conduit groove).
Pour from the ear provided at one end of the, and move it by scraping it toward the other end with a squeegee made of rubber or metal,
The entire area of the recess 15a is filled.

Coloring pigment-Main agent urethane sanding 16-25 (urethane type) (manufactured by Union Paint Co., Ltd. 100 parts) -Curing agent Coronate L (manufactured by Nippon Polyurethane Co., Ltd.) Takenate D-110N (manufactured by Takeda Pharmaceutical Co., Ltd.) 5 to 20 parts of any of the following: -Brightening pigment Silver-based titanium dioxide-coated mica For example, Iriodin 100 series (manufactured by Merck Japan Ltd.) Iris-based titanium dioxide-coated mica For example, Iriodin 200 series (manufactured by Merck Japan Ltd.) Mica foil in which low-order titanium oxide produced by reducing mica coated with titanium dioxide is further coated with titanium dioxide. For example, one of Infinite Color All species (manufactured by Shiseido Co., Ltd.) or a mixture of 1 to 30 parts.

After the color pigment 72 is dried, a top coat layer 17 is formed on the resin layer 15 by a method such as coating using a fluid resin having the following composition using a natural roll coater, or spray coating. Form.

Flowable Resin / Unsaturated Polyester Resin Gosseralc 500B (Nippon Gosei Kagaku Co., Ltd.) Goselac 510A (Nippon Gosei Kagaku Co., Ltd.) Goselac 770 (Nippon Gosei Kagaku Co., Ltd.) Ester R280 (Mitsui Toatsu) Chemical Co., Ltd.) and Ester R1710 (Mitsui Toatsu Chemical Co., Ltd.) mixed 1: 1 Ester CR211 (Mitsui Toatsu Chemical Co., Ltd.) 100 parts of either of the above Agent Cobalt naphthenate (6%) Ester EP400 (manufactured by Mitsui Toatsu Chemical Co., Ltd.) 0.5 to 1.5 parts of Ester EP440 (manufactured by Mitsui Toatsu Chemical Co., Ltd.) and 0.3 parts of either -1.5 parts-Methyl acetoacetate Acetoacetate Ester EP440 (manufactured by Mitsui Toatsu Chemicals, Inc.) 0.1-2.0 parts-Curing agent Permek N (Japan Oils and fats Co., Ltd.) Pamekku H (Nippon Oil & Fats Co., Ltd.) made of 1.0 to 3.0 parts coloring pigment PCN toner any of the (Tokyo Ink Co., Ltd.) 5 to 20 parts

As described above, in this embodiment, not only the wood pattern or the conduit pattern but also the physical properties such as the hardness of the surface texture of natural wood, the chemical resistance, and the flame retardancy of the texture are applied to the decorative board. Since the uneven pattern (conduit groove) 15a reflecting the property is formed,
The texture of wood is strongly expressed, and a new texture is created, which makes it possible to produce beautiful, high-value-added decorative boards. In addition, this method prepares a manuscript by processing such as rubbing based on natural wood, making a prototype from this manuscript, a replica mold from the prototype mold, and a production mold from the replication mold. Since the veneer is produced from the mold, a large amount of high-quality and uniform veneer can be produced from one natural wood or manuscript, and the cost can be reduced. Further, in the manufactured uneven decorative plate, the conduit groove of the resin layer 15 has the coloring agent 7 containing the bright pigment.
Since it is colored by 2 and has a glittering effect, it can create a higher texture and a texture with a different taste, and by selecting a glittering pigment, it is possible to produce a design-based fun, and a higher commercial value. Is obtained.

According to the present invention, not only the decorative plate shown in FIG. 4 but also the decorative plate shown in FIG. 5, FIG. 6, FIG. 7 or FIG. 8 can be produced. That is, FIG.
In the decorative plate shown in FIG. 1, the sealer layer 18 is formed on the resin layer 15 by mixing a binder with a glittering pigment different from the glittering pigment of the wiping layer 16 or by mixing a coloring pigment with the binder. A wiping paint layer 16 is formed on the upper surface and covered with a top coat layer 17.

The decorative board of FIG. 6 is formed by forming a wiping paint layer 16 on the resin layer 15 and forming a sealer layer 18 on the resin layer 15 and the wiping paint layer 16. Further, in the decorative board of FIG. 7, the concealing paper 13 was printed without forming the primer layer 14 to form the ink layer 19, and the transparent resin layer 15 was provided on the concealing paper 13 on which the ink layer 19 was formed. It is a thing. Furthermore, the decorative board of FIG. 8 has the resin layer 1 after the wiping paint layer 16 is provided.
5 and the wiping paint layer 16 on the transparent unsaturated polyester resin layer (mirror surface resin layer) 71 by the mirror surface film method.
Is formed to cover the resin layer 15. With respect to the above-described aspects of FIGS. 5, 6, 7, and 8, the same parts as those of FIG. 4 are denoted by the same reference numerals and description thereof is omitted.

[0033]

As described above, according to the method for producing a textured decorative board according to the invention of claim 1, the surface texture of natural wood is obtained by subjecting natural wood to a treatment such as rubbing with a brush, blade treatment or chemical application. Manufacture a manuscript with an uneven pattern corresponding to the hardness and softness and chemical resistance, or a manuscript in which the conduit pattern is emphasized or left shaving, and then a production mold is made based on this manuscript. Is coated on the resin flown on the substrate and peeled after the resin is cured to form a resin layer with the conduit pattern transferred to the surface, and then the conduit groove of this resin layer is coated with a coloring agent containing a bright pigment. Since the coloring is applied to the eyes, the wood texture is strongly exhibited, and it is possible to inexpensively mass-produce veneer with a new texture.

In particular, in the method for producing a textured decorative board according to the first aspect of the present invention, not only the bright pigment having a small particle size but also the bright pigment having a large particle size is obtained by increasing the width dimension of the conduit groove. It is possible to fill a large amount of a colorant containing γ in the conduit groove, and it is possible to exhibit more excellent glitter characteristics.

Further, in the method for manufacturing an embossed decorative board according to the invention of claim 2, by making the embossed resin layer opaque, the conduit pattern can be more clearly expressed, and in the invention of claim 3, The method for producing such a textured decorative board uses, as the glittering pigment, a mixture of titanium dioxide-coated mica and low-order titanium oxide produced by reducing titanium dioxide-coated mica, which is further coated with titanium dioxide. Then, since the latter mica foil has a concealing property and a high glittering property, the sealing layer can be seen from all angles (the viewing angle can be widened).

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view for explaining the production of a prototype in a method for producing a textured decorative plate according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view for explaining the production of the replication mold in the same production method.

FIG. 3 is a schematic cross-sectional view for explaining the production of the production mold in the same production method.

FIG. 4 is a schematic cross-sectional view of a wood grain decorative board manufactured by the manufacturing method.

FIG. 5 is a schematic cross-sectional view of another embodiment of a wood grain decorative board manufactured by the manufacturing method.

FIG. 6 is a schematic cross-sectional view showing still another embodiment of a wood grain decorative board manufactured by the manufacturing method.

FIG. 7 is a schematic cross-sectional view showing still another aspect of a wood grain decorative board manufactured by the manufacturing method.

FIG. 8 is a schematic cross-sectional view showing still another aspect of the uneven decorative plate manufactured by the manufacturing method.

[Explanation of symbols]

 11 Base Material 13 Paper 14 Primer Layer 15 Resin Layer (Uneven Resin Layer) 15a Uneven Pattern (Conduit Groove) 16 Wiping Paint Layer 17 Top Coat Layer 18 Sealer Layer 19 Ink Layer 21 Plywood (Base Material) 22 Plucked Plate (Original) 22a Concavo-convex pattern 30 Prototype 31, 32 Silicone resin 33 Frame 34 Stencil 40 Copying mold 50 Production mold 71 Mirror surface resin layer 72 Colorant

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display area C01G 23/00 Z C08K 3/22 KJR

Claims (3)

[Claims] 1. A manuscript preparation step of preparing a manuscript in which unevenness is expressed as a difference in hardness due to the texture structure of a natural wood surface or a conduit pattern is emphasized, and the unevenness pattern on the surface of the manuscript is used as a mold. A mold making step of taking and producing a production mold, flowing a fluid resin on a substrate and covering the production resin on the fluid resin, and peeling the production die after the fluid resin is cured. A step of forming a concavo-convex resin layer having a conduit groove on the surface of which the concavo-convex pattern is transferred on the substrate, and the conduit groove on the surface of the concavo-convex resin layer is covered with a coloring agent containing a bright pigment. And a wiping step of coloring. 2. The method for manufacturing an uneven decorative plate according to claim 1, wherein the uneven resin layer is semitransparent or opaque. 3. The low-order titanium oxide produced by reducing the titanium dioxide-coated mica with respect to 100 parts of the titanium dioxide-coated mica by the bright pigment, wherein the uneven resin layer has a high lightness color. The method for producing a concavo-convex decorative board according to claim 1 or 2, wherein 3 to 15 parts of mica foil coated with titanium dioxide is mixed.