JPH02116545A - Manufacture of stone-toned building material - Google Patents

Abstract

PURPOSE:To make the pattern presentation of dense granitic external appearance possible and obtain the hard feel of stone by smoothly finishing resin surface layer by a method wherein wooden chips are colored and formed together with adhesive under pressure so as to be turned into wooden veneer and finally resin surface layer is laminatingly formed on the surface of the wooden veneer. CONSTITUTION:Wooden chips 1, 1..., which are formed by slicing wood 6, such as shavings of a planer, are colored and coated with adhesive and press-molded with a press platen 8 so as to form a flitch 9. When the flitch 9 is formed in a block, the flitch is sliced with a slicing blade 11 in order to be able to obtain a wooden veneer 2. After resin stock 13 is poured to the bottom of a mold 12 so as to set the wooden veneer 2 on the resin stock in order to cure and solidify the resin stock 13, resulting in laminating resin surface layer 3 onto the surface of the wooden veneer 2. In the obtained stone-toned building material A, the aggregate pattern of the colored wooden chips 1, 1... consisting of the wooden veneer 2 is represented as grinite pattern, resulting in producing dense granitic external appearance.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method for producing a stone-like building material used as a surface material for counters and the like. [Conventional technology]

Artificial stones made mainly of resin, such as artificial marble, have traditionally been used as stone-like building materials used to finish the surfaces of kahuntar and other utensils to the stone side. This artificial stone is made as a resin molded product, and when the resin is cast, pigment is generally poured into it to create a flowing pattern that resembles astronomical stone. Artificial stones have also been created by scattering colored plastic, wood, stone, etc. on the surface of resin and then curing the resin.

[Problem to be solved by the invention]

However, in the former case, which expresses an astronomical stone-like pattern using a flowing pattern of pigment, the pattern is relatively large and is limited to a band-like pattern, resulting in a dense appearance similar to granite. It cannot be formed. In addition, the latter method in which plastic or the like is sprinkled on the surface of the resin does not allow for a smooth surface finish, making it impossible to obtain the hard feel of stone. The present invention has been made in view of the above points, and is directed to the production of a stone-like building material that can be formed into a compact appearance similar to granite, and which can also be formed with a smooth surface to provide a hard texture. The purpose is to provide a method.

[Means to solve the problem]

The method for manufacturing a stone-like building material according to the present invention involves coloring small pieces of wood 1, 1, . . .
1... with an adhesive to create a wood veneer 2, and a resin surface N3 is laminated on the surface of this wood veneer 2.

[For use]

In the present invention, the wooden veneer 2 made by pressure-molding colored wood pieces 1, 1... with adhesive can create a pattern with a compact granite-like appearance. Furthermore, the resin surface 713 laminated on the surface of the wooden veneer 2 can provide a smooth surface finish.

【Example】

The present invention will be explained in detail below. As the wood veneer 2, for example, the one provided in Japanese Patent Application No. 62-271076 provided by the present applicant can be used. That is, as shown in Figure t51, a small piece of wood 1 obtained by slicing a piece of wood 6 (for example, a planar shaver product)
Color first. The thickness of the small piece of wood 1 is 0.05 to 0.8
0 mm (preferably 0.10 to 0.50 mm) and an area of 6 to 400 me2 (preferably 25 to 250 mm)
), and are formed as thin pieces with an aspect ratio (vertical width/m width) of 0.4 to 7.0 (preferably 0.8 to 3.0), and these small pieces of wood 1 are I don't mind being curled up. As long as the above shape accounts for 60% or more, dimensions other than the above may be included. Further, the coloring method can be arbitrary, such as dyeing, and the color can be set arbitrarily, but in order to express a granite-like pattern, it is better to color it in a dark color such as a male color. Next, a small piece of wood 1.1 colored in this way
Apply adhesive to... As the adhesive, flexible materials with a high elongation rate such as urethane adhesive, urethane emulsion adhesive, soft polyester resin, vinyl acetate adhesive, etc. can be used, and the elongation rate is 30%.
Application of the adhesive to the wood piece 1, which is preferably .about.500%, can be carried out by spraying or cross-contact. Next, the small pieces of wood 1, 1... are pressed and formed into 7 pieces 9
Create. Pressure forming can be performed, for example, using a press device 10, and as shown in FIG. can do. The pressure applied by this press device 10 should be sufficient to crush the small piece of wood 1 along the press surface (2K
g/ca+2~50Kg/am2 (preferably 7Kg
/cm2 to 14Kg/cII+2) is common. If this 7-rich piece 9 is formed to have a small thickness and the surface is exposed using a planer or a sunglass, it can be used as it is as the wood veneer 2 in the present invention. Furthermore, when the 7-rich block 9 is formed into a thick block shape, the wood veneer 2 can be obtained by slicing it with the slicing blade 11. Here, it is preferable to use a thin piece as described above as the small piece of wood 1. That is, the thin piece is easily deformed during compression molding, and does not cause poor adhesion due to voids or foaming of the adhesive due to insufficient pressure. In other words, if the wood pieces are obtained by crushing wood like particle board, voids may be created during compression molding, or poor adhesion or foaming may occur due to insufficient pressure, but in the case of thin pieces, the thin pieces are aligned parallel to the pressing surface. They are arranged so that voids are less likely to occur. In addition, the thin pieces are lined up parallel to the press surface during pressure forming, so that the surface of the thin pieces is the wood veneer 2.
It appears as a pattern on the surface, and the expression of the pattern becomes clear. Next, in order to laminate the resin surface/[3 on the surface of the wood veneer 2 created as described above, as shown in Figure 12, Mui fat liquid 13 is poured into the bottom of the mold 12 and the wood This can be done by setting the veneer 2 and curing or solidifying the resin liquid 13. The resin liquid 13 is colorless and transparent or colored and transparent.
Unsaturated polyester resin or the like may be used when molding is performed by a casting method in which the resin Wt liquid 13 is simply poured into the resin, and polyvinyl chloride or the like may be used when hardening or solidifying while being compressed with a press plate 14 as shown in Figure t54. Can be done. Then, by demolding, a stone v with Mt layer of resin surface layer 3 on the surface of the wooden veneer 2 as shown in FIG.
4 Building material A can be obtained. As the mold 12, it is possible to use not only a flat mold but also a mold with a curved surface, and it is possible to create a stone building material A having an arbitrary curved surface. Adhesion between the veneer 2 and the resin surface layer 3 can be improved. In the stone-side building material A obtained in this way, the aggregate pattern of the colored wood pieces 1° 1 . Formed in appearance. Furthermore, since the surface of the resin surface layer 3 is formed as a smooth surface, it is possible to express the hard texture of stone. In this way, it can be formed with a superior appearance compared to conventional artificial stone, but even compared to natural stone, it has high bendability and conformability, and is easy to work with, such as nailing, sawing, and planing. There are excellent fish that are easy to process, have a stable pattern, have a large supply capacity, and are inexpensive. As shown in FIG. 5, the resin liquid 13 is similarly poured onto the back side of the wooden veneer 2 to form a resin back N15, and as shown in FIG. It can be protected from the front and back with M15 to increase strength and water resistance. In this case as well, in addition to the casting method, the molding can also be performed by pressing with the press plate 14.

【Example】

The present invention will be specifically explained by examples. Bay fir planer shaver products were used as the wood pieces. The size of the small pieces of wood is 0°10 to 0.40 in thickness.
m, area is 12-200LIl1112, aspect ratio is 1.
80% or more had a value of 0 to 3.0. This small piece of wood was adjusted to 92℃ P M -B 1ac
This dyed wood piece was dyed black by immersing it in a 1.0% bath of K (Jumin Chemical Industry Co., Ltd. 91) for 3 hours and then drying at 110°C for 2 hours. GA601-04) (manufactured by Co., Ltd.) was mixed, and small pieces of wood mixed with this adhesive were pressed together at a pressure of 10 kg/cIa2 to prepare 7-rich pieces. A wood veneer was obtained by slicing this 7-rich piece into a thickness of 0.611II11. Next, as shown in FIG. 5, 100 parts by weight of an unsaturated polyester resin (FR-110 manufactured by Dainippon Ink Industries, Ltd.) and 0.3 parts by weight of a curing agent (Permec N manufactured by Nippon Oil Industries, Ltd.) were mixed in a mold 12. The resin liquid 13 was poured in, the wooden veneer 2 was placed on top of the resin liquid 13, and the resin liquid 13 was poured on top of this, and the resin liquid 13 was cured to obtain a stone-side building material. This stone-side building material had a black granite appearance, and had a smooth and hard surface.

【Effect of the invention】

As described above, in the present invention, a small piece of wood is colored, a wood veneer is created by pressure-molding the colored wood piece with an adhesive, and O (oil) is applied to the surface of this wood veneer. Since the surface layer is laminated, the wooden veneer with a grouping pattern of colored wood pieces is exposed as a pattern, making it possible to express a pattern with a dense granite-like appearance. Moreover, the resin surface layer laminated on the surface of the wood veneer can be finished to a smooth surface, giving it the hard feel of stone.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the manufacturing process of a wooden veneer in an embodiment of the present invention, Fig. ff12 is a sectional view showing the forming process of the same as above, and Fig. 3 is a stone material i13! FIG. 4 is a sectional view showing the forming process in another embodiment of the present invention; PIS 5 is a sectional view showing the forming process in yet another embodiment of the present invention; FIG. The figure is a sectional view showing a stone-side building material obtained by the same method. 1 is a small piece of wood, 2 is a wooden veneer, and 3 is a resin surface layer.

Claims (1)

[Claims] (1) A characteristic feature is that a small piece of wood is colored, a wood veneer is created by pressure-molding the colored wood piece with an adhesive, and a resin surface layer is laminated on the surface of this wood veneer. A method for manufacturing stone-like building materials.