JPH10286808A - Woody molded board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the dimensional accuracy, appearance and durability by laminating a fibrous mat mixed with heat-setting resin powder to the back face of a wood veneer impregnated with a heat-setting resin and integrally binding together both wood veneer and fibrous mat by self-adhesion through the heat-setting resin simultaneously with the press-molding of the laminate by a press while it is hot. SOLUTION: A single, piece or plural pieces of wood veneer 1, 1 obtained by slicing broad-leaved trees such as Japanese oak beech impregnated previously with a heat-setting resin made up of phenol or epoxy resins, are used. In addition, a pliable, easily deformable and highly rigid fibrous mat 2 which is formed of a mixed fiber of woody fiber and hemp fiber in a mat shape and internally has heat-setting resin powder of phenol or epoxy resin, is laminated on the back face of the wood veneer 1. Further, the laminate is arranged between the top force 3a and the bottom force 3b of a mold, then is pressed using a press and the wood veneers 1, 1 and the fibrous mat 2 are bonded together by themselves into the woody molded board. This board shows high surface hardness, wear resistance, water resistance and heat resistance without joint part and has an uneven pattern formed definitely on the surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden surface-formed plate constituting a counter, a wall panel, a floor panel and the like.

[0002]

2. Description of the Related Art Conventionally, when manufacturing two-dimensional or three-dimensional counters, wall panels, floor panels, etc. from wood, each bent part is cut and polished. Is molded and joined, and then painted several times to obtain a product of a predetermined shape. Conventional wooden products require many manufacturing steps, require much labor, are poor in dimensional accuracy, and have joints. There was a problem that durability was poor.
Conventionally, when forming a counter, a wall panel, a floor panel, and the like with a reinforced tree impregnated with a resin, since a degree of freedom in forming the reinforced tree is not so large, a large bent portion is formed. Since this is formed by assembling and shaving, it is difficult to manufacture a small round-shaped product, and there is a problem that it is expensive.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and it is necessary to form a small round shape in a press well, to have no joint, and to use an adhesive. The first gist of the present invention is to provide a molded wooden board having a wooden surface formed into a two-dimensional or three-dimensional shape, wherein the molded board is impregnated with a thermosetting resin. A fibrous mat into which a thermosetting resin powder was mixed was laminated on the back surface of the wooden veneer, and pressed and pressed by a press machine in a heated state. Simultaneously with the molding, the wooden veneer was passed through the thermosetting resin. The plate and the fibrous mat are integrated by self-adhesion. Also, the second
The gist of the present invention is that the wooden veneer is formed by knitting a narrow veneer into a sheet. A third point is that the wooden veneer and the fibrous mat are formed in advance in a developed view shape.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. In manufacturing a water-based product having a two-dimensional or three-dimensional shape, such as a wooden counter (wood-formed board), in this example, as shown in an exploded view in FIG.
Using at least one wooden veneer 1, 1, a fibrous mat 2 is further laminated on the back surface, and as shown in FIG. 2, placed between an upper mold 3 a and a lower mold 3 b with a heater, and pressed by a press machine. By pressing the upper mold 3a toward the lower mold 3b, the wooden veneers 1, 1 and the fibrous mat 2 are self-adhered.
The wooden veneer 1 is a hardwood obtained by rotating or slicing hardwood such as oak, beech, hippopotamus and mizuna. A veneer is used, and the wooden veneer 1 is pre-impregnated with a thermosetting resin composed of phenol, melamine, unsaturated polyester, epoxy resin, and the like. It is formed into a mat with a mixture of wood fiber and hemp fiber, and contains a powder of thermosetting resin consisting of phenol, melamine, unsaturated polyester, and epoxy resin. It is easy to deform and has high toughness.

The wooden veneer 1 is, for example, 0.6 to
It is formed in a flat plate shape having a thickness of about 2 mm, and the impregnation rate of the thermosetting resin is set to about 30 to 70%. In addition, when the wooden veneer 1 is impregnated with the thermosetting resin, the water content is about 30%, and the wood veneer 1 is maintained at a water content of about 10 to 30% without drying, and is softened. It is pressed in a press mold as shown in FIG.
Since has a high water content and a small thickness, it has a high degree of freedom in molding, and can be favorably molded into a predetermined shape by pressing.

During molding, press molding is performed while the upper mold 3a and lower mold 3b are heated. For example, the heating temperature during molding is set to about 130 ° C. to 180 ° C. For example, at a pressure of 15 to 50 kg / cm ² , the molding time can be set to about 10 to 20 minutes for press molding, and the thermosetting resin impregnated in the wooden veneer 1 by heating during the press molding. And the thermosetting resin powder mixed in the fibrous mat 2 can be melted, and the wooden veneer 1 and the fibrous mat 2 can be satisfactorily stuck and integrated. 1 and the fibrous mat 2 are integrated.

Since the fibrous mat 2 has a cushioning property when pressed with a press mold, it prevents sudden deformation when the upper mold 3a is tightened to the lower mold 3b side and prevents cracking of the wooden veneer 1. The moisture contained in the wooden veneer 1 is converted into water vapor, and the fibrous mat 2
Since it can pass through the inside and escape to the outside, good molding can be performed without explosion due to water vapor at the time of heat molding. Therefore, the counter K conventionally formed by joining the portions can be integrally press-formed as shown in FIG. 3, and at the same time, the wooden veneer 1 and the fibrous mat 2 can be bonded and integrated. A back guard portion Kb that rises substantially at a right angle is formed integrally with the rear end of the horizontal portion Ka as shown in FIG.
An apron portion Kc hanging down substantially at a right angle can be integrally formed at the front end of the first portion, and the projection portion Kd can also be formed integrally at the same time as a protruding shape from the horizontal portion Ka. That is, if the press mold 3a is formed with irregularities, the wooden veneer 1 on the front side can be formed with irregularities such as the projections Kd during press molding, and an irregular pattern can be formed on the surface. is there.

As described above, in the present embodiment, a wood-formed plate K having a bent portion or the like having a bent portion can be easily formed without a joint without any trouble. It can be an excellent product, and since the wooden surface is formed by the wooden veneer 1 on the surface side, the surface hardness is secured and the wooden molded plate K having excellent wear resistance, water resistance and heat resistance.
Can be obtained.

Although the wooden veneer 1 is exemplified as a single sheet, a wooden veneer 1 having two or more wooden veneers 1 bonded to the back side of a backing paper may be used. As shown in the figure, the veneers 1a, 1 formed in a narrow band shape.
It is also possible to use a sheet formed by knitting a and 1a to form a sheet as shown in FIG. 4. In such a sheet, the degree of freedom of molding is further improved, and irregularities and small round shapes can be reduced. It can be formed well and cracks during molding can be prevented.

In the case of manufacturing a wooden molded board having a three-dimensional shape, for example, as shown in FIG. 5, the wooden veneer 1 and the fibrous mat 2 are formed in advance in an exploded view shape. Press molding is performed in such a state that the wooden veneer 1 and the fibrous mat 2 are laminated, and a molded article M having a shape as shown in FIG. If you do, it will surely prevent cracking,
Good products can be obtained.

If an antibacterial agent is mixed into the thermosetting resin impregnated in the wooden veneer 1 or the thermosetting resin mixed in powder form into the fibrous mat 2, a good antibacterial effect is exhibited. The antibacterial agent may be, for example, silver phosphate which generates silver ions, other silver compounds, or other zinc oxide or aluminosilicate solid particles (Japanese Patent Laid-Open No.
263175), colloidal silver (Japanese Unexamined Patent Publication No.
No. 2162) may be mixed in a particle state or a solution state to exhibit good antibacterial properties.

[0012]

According to the present invention, there is provided a wooden board having a wooden surface formed into a two-dimensional or three-dimensional shape, wherein the molded board is formed on a back surface of a wooden veneer impregnated with a thermosetting resin by thermosetting. The fibrous mat mixed with the powder of the thermosetting resin is laminated and pressed by a press machine in a heated state, and the wooden veneer and the fibrous mat are self-adhered via the thermosetting resin at the same time as the molding. Because it is integrated, it is excellent in surface hardness, abrasion resistance, water resistance, and heat resistance, and can be used to form well-formed wooden boards with no joints. This has the effect of being able to be formed into

Further, since the wooden veneer is formed by knitting a narrow veneer into a sheet shape, the degree of freedom of molding is further improved, and the wooden veneer having a concavo-convex pattern or a small round shape is obtained. This has the effect that the plate can be satisfactorily manufactured without cracking. Further, since the wooden veneer and the fibrous mat are formed in advance in an exploded view shape, cracks are prevented from occurring during molding, and there is an effect that a wooden molded board having a predetermined shape can be formed well.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a wooden veneer and a fibrous mat.

FIG. 2 is a diagram showing a state before molding by a press die.

FIG. 3 is a state diagram showing a state after being formed into a predetermined shape by a press die.

FIG. 4 is a perspective configuration diagram in which a veneer is knitted and formed into a sheet shape.

FIG. 5 is a perspective configuration diagram of a wooden veneer and a fibrous mat formed in a developed view shape.

FIG. 6 is a perspective view of a product after press-molding the wooden veneer and the fibrous mat of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wooden veneer 1a Veneer 2 Fibrous mat 3a Upper die 3b Lower die K Wood molded board M Molded product

Claims (3)

[Claims] 1. A molded wooden board having a two-dimensional shape and a three-dimensional wooden surface, wherein the molded board has a thermosetting resin powder impregnated on a back surface of a wooden veneer impregnated with a thermosetting resin. The fibrous mats mixed with are laminated and press-molded by a press machine in a heated state, and the wooden veneer and the fibrous mat are self-bonded and integrated via the thermosetting resin at the same time as the molding. A wooden molded board characterized by being a thing. 2. The wooden veneer is formed by knitting a narrow veneer into a sheet shape.
The woody molded board described in the above. 3. The wooden veneer and the fibrous mat,
The wood-formed board according to claim 1 or 2, wherein the wood-formed board is formed in a developed shape in advance.