JP3055974B2 - Manufacturing method of cosmetic particle board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly applied to architectural interior materials such as flooring materials or wall materials for shops or furniture such as tables, counters, storage doors, etc., which are designed for interior design. The present invention relates to a method for producing a cosmetic particle board excellent in quality.

[0002]

2. Description of the Related Art Particleboard is a wooden board made by applying an adhesive to a small piece of wood and hot-pressing it into a wooden board. Initially, the board is mainly used as a base material as a waste wood material and does not require a design. Was. After that, the field of use began to be used as furniture and members of living equipment, and the designability began to be questioned, natural wood veneer, decorative paper,
In general, a design is imparted, though expensive, by attaching a surface decorative material such as a decorative PVC sheet.

Further, the design of the particle board has been improved by coloring. For example, after bleaching wood chips, coloring the inside of the wood chips with a colorant, then applying a colorant, laminating in a mat shape so that at least the colored wood chips are on the surface layer, and hot-pressing colored particle board Manufacturing method (Japanese Unexamined Patent Publication
5-164142) A method for producing a colored particle board in which a binder containing a self-emulsifying isocyanate compound as at least one component is blended with a vegetable chip previously colored in a predetermined color and molded (JP-A-61-130002). A method for producing a colored particle board in which a liquid and a binder are separated or both are mixed and then added to a vegetable chip and molded (JP-A-61-130003) Incorporating a colorant in the particle board production process A water-based emulsion is applied to the surface of the obtained colored particle board, and then dried and fixed.
4) has been proposed.

[0004]

A proposal has been made to form a plate-like material by hot-pressing using colored wood chips or an adhesive, but it is inferior in design such as change in color tone and colorfulness. There was a disadvantage. The present invention is to provide excellent design properties without sticking a surface decorative material such as a natural wooden veneer, a decorative paper, a decorative PVC sheet or the like to the surface of a conventional particle board. In other words, a variety of new design features are imparted by utilizing the beauty of the material of the wooden pieces.

[0005]

Each colorant adhesives invention colored and dyed wood pieces THE INVENTION Means for solving], respectively, using a color different colorants, after heat-molded into a plate shape, and polishing the surface The present invention relates to a method for producing a decorative particle board capable of obtaining excellent design properties by forming a colored transparent synthetic resin coating film on its surface . As a small piece of wood,
Size is 10-30mm in length, 2-10mm in width, 0.5 in thickness
Wood chips of up to 5 mm, wafers, sawdust and the like are used, and as a tree species, mixed chips of hardwood such as lauan, teak and maple and conifers such as cypress, cedar and pine are used.

The dyes include direct dyes, acid dyes, oil dyes, alcohol-soluble dyes and basic dyes.
Hydrophilic dyes that can easily dye small wooden pieces are preferred. Examples of the method of using the above-mentioned dye in the present invention include a dyeing method in which a wooden piece is dyed with a dye, taken out and dried to obtain a dyed wooden piece, and a spray method of spray-coating the wooden piece with a dye. . The aforementioned dyeing method is
The dye penetrates not only on the surface of the wood piece but also inside the wood piece. For this reason, when the surface is polished into a plate-like material after hot pressing, the polished cross-section of the woody piece provides excellent design properties caused by the permeation of the dye into the woody piece.

[0007] In the above-mentioned spraying method, the outline of the wooden piece becomes clear mainly because the dye adheres to the surface of the wooden piece, and the wooden piece is emphasized in design to obtain excellent design. As the adhesive, a phenol resin, a urea-melamine resin, a urea resin, a polyfunctional isocyanate compound-based adhesive and the like are generally used. As a coloring agent for coloring the adhesive used in the present invention, in addition to the above-described dye, as a pigment, for example, an insoluble azo red pigment, a copper phthalocyanine blue pigment, an insoluble azo yellow pigment,
A carbon black pigment or the like is used. As a method of using the above-mentioned colorant, a colorant and an adhesive are mixed in advance and applied to a small piece of wood, followed by hot-press molding according to a conventional method, or coloring by applying a colorant to a small piece of wood, There are respective manufacturing methods in which an adhesive is applied to a small piece of wood and then hot-pressed by an ordinary method.

As a method of polishing the surface of the above-described hot-pressed plate-like material, there is a method of polishing the surface smoothly using a grinding machine such as a belt sander, a hand sander, and a planer. As described above, a colored adhesive is applied to the dyed wood pieces and hot-pressed into a plate shape, and then the surface is polished, so that the colored cross-section of the wood pieces and the color fixed to the periphery of the wood pieces are fixed. The exposed adhesive is sharply exposed, so that a multicolored decorative particle board can be obtained. As a method of further imparting design to the decorative particle board, a transparent unsaturated polyester resin on the surface,
By coloring a synthetic resin coating layer made of a urethane resin, an amino alkyd resin or the like using the coloring agent, a novel three-dimensional decorative particle board can be obtained. Hinoki, cedar, the use of woody pieces consisting of pine conifers in the above-mentioned paragraph and the decorative particle board of the paragraph, without impairing the characteristics of the material such as hinoki, cedar, pine texture, wood grain beauty, aroma Thus, a cosmetic particle board having excellent design properties can be obtained.

[0009]

The above-mentioned decorative particle board can be obtained by filling the colored adhesive more in the gap between the wooden pieces and the conduit part of the wooden pieces and polishing the surface after hot-press molding. Since the dyed cross section of the small wood piece is exposed, it is possible to obtain a multicolored and richly expressive design. The present invention provides a three-dimensional effect by providing a transparent synthetic resin coating layer having a color tone different from any of the color tone of the dye obtained by dyeing the wooden pieces and the color tone of the colorant obtained by coloring the adhesive on the surface of the aforementioned decorative particle board. It exudes and gives a sense of quality, and further novel design is obtained. The present invention uses the wood species of the woody pieces used in the above-mentioned decorative particle board by using the woody pieces of cypress, cedar, and pine conifers. Is obtained, and not only the design in terms of color tone but also the design is improved from the characteristics of the material.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to FIG. Example-1 Wood piece 1000 mixed with Lauan wood, pine, cedar and the like having a length of 10 to 30 mm, a width of 2 to 10 mm and a thickness of 0.5 to 5 mm
g with an aqueous solution of a basic dye (trade name: Astra Phloxine FF)
conc red was dyed in a 50% aqueous solution (manufactured by Hodogaya Chemical Industry Co., Ltd.) for 48 hours, dried in a dryer at 110 ° C. for 24 hours, and left indoors for about 3 hours to remove heat to room temperature. Furthermore, a pigment (trade name: Dirac Blue L-1557 25) is added to 150 g of urea-formalin resin.
% Copper phthalocyanine blue pigment (manufactured by Dainippon Ink and Chemicals, Inc.) was uniformly mixed with 3 g of a solid content on the above-mentioned small wooden pieces, and formed on a coal plate. The obtained forming mat is pressed at a pressing temperature of 1
Under a condition of 60 ° C., a press pressure of 20 kg / cm ² and a press time of 5 minutes, the plate was hot-pressed. After leaving indoors to remove heat to room temperature, the surface was polished smoothly with a # 240 belt sander.

On the surface, a sealer treatment agent (trade name: Garut Sanding GS-206A: Garut Sanding GS)
-206B = 1: 1 (manufactured by Sanyu Paint Co., Ltd.) was applied by a flow coater at 100 g / m ² . An aqueous solution of a basic dye and a top treating agent (trade name: Polyclear NK-31-1 manufactured by Sanyu Paint Co., Ltd .: 3% cobalt naphthenate: brand name; Permec N manufactured by NOF Corporation = 100: 1: 1) (Trade name: Auramine OW 100 yellow 50% aqueous solution manufactured by Hodogaya Chemical Industry Co., Ltd.) A dye mixed with 0.5% was applied at 300 g / m ² with a flow coater and cured. The board is obtained.

Example-2 1000 g of woody pieces consisting of cypress, cedar and pine conifers having a length of 10 to 30 mm, a width of 2 to 10 mm and a thickness of 0.5 to 5 mm were prepared by using an aqueous solution of a basic dye (trade name: AstraPhloxine FF) conc
Red (50% aqueous solution manufactured by Hodogaya Chemical Industry Co., Ltd.) was dyed for 48 hours, dried at 110 ° C. for 24 hours with a drier, and left indoors for about 3 hours to remove heat to room temperature. Further, a pigment (trade name: 25% copper phthalocyanine blue pigment, Dairac Blue 1-1557, manufactured by Dainippon Ink and Chemicals, Inc.) is added to 150 g of urea-formalin resin.
3 g of the adhesive mixed with 0 g was solidly applied to the above-mentioned small pieces of wood at a solid content, and formed on a coal plate. The obtained forming mat was hot-press molded into a plate under the conditions of a press temperature of 160 ° C., a press pressure of 20 kg / cm ² , and a press time of 5 minutes. After leaving indoors to remove heat to room temperature, the surface was polished smoothly with a # 240 belt sander. By coating the transparent synthetic resin colored in Example 1 on the surface, a decorative particle board excellent in design was obtained.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of a surface of a decorative particle board according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wood piece 2 Dye 3 Adhesive 4 Colorant 5 Polished surface 6 Synthetic resin coating layer

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B27N 3/02 B27K 5/02 B27N 7/00

Claims (2)

(57) [Claims] 1. A colored adhesive is applied to a small piece of dyed wood, hot-pressed into a plate shape, the surface is polished , and
A method for producing a versatile decorative particle board obtained by forming a transparent synthetic resin coating layer that is colored. 2. The woody piece is composed of cypress, cedar and pine conifers.
The method for producing a decorative particle board according to claim 1.