JP2003039405A - Synthetic material containing bamboo laminated base material and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a synthetic material wherein a structure material which is free from disorder even though used for a long period of time and a facing material are integrally formed. SOLUTION: Many bandy bamboo materials 1 are laminated in many layers so as to cross mutually in a thickness direction to constitute a thick bamboo laminated base material 2. Then, a facing material 3 which is thinner than a thickness of the bamboo laminated base material 2 and wider than a width of the bandy bamboo material 1 is arranged on both end faces in a laminating direction of the bamboo laminated base material 2, and the mutual bandy bamboo materials 1 in the laminating direction and those and the facing materials are integrated via adhesives.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic material having a thick bamboo laminated base material laminated in multiple layers on a core material and a thin decorative material on its front and back surfaces, and a method for producing the same.

[0002]

2. Description of the Related Art Heretofore, flooring materials using bamboo laminated boards have been proposed. This is to grind Menso bamboo etc. horizontally or vertically,
The strip-shaped bamboo materials formed into a plate shape having a thickness of several mm, a width of several cm, and a length of 10 cm to 1 m are arranged in parallel, and a large number of them are laminated, and each bamboo material is heated and pressure-bonded with an adhesive material. It constituted the bamboo laminated board. This bamboo laminated plate has a bamboo appearance on the surface, so it has a unique aesthetic and texture of bamboo, it has a good appearance, and it has elasticity unique to bamboo that does not easily warp or break, and it has little bending and excellent moisture resistance. There was an advantage that Further, it has been proposed that a plywood such as a plywood board be superposed on the bamboo material and stuck to the bamboo material. Furthermore, there has been proposed a strip-shaped bamboo material arranged so as to intersect the vertical direction and the horizontal direction of the stacking direction. Furthermore, a laminate having a plywood such as veneer on its surface has been proposed.

[0003]

All of the conventional proposals have been made for the purpose of using bamboo as a substitute for conventional wood, utilizing patterns on the surface of bamboo, and reducing the amount of wood used. there were. As a result of various experiments, the present inventor has found that bamboo can be used as a core material of a structural material to provide a well-structured building material that does not change over time and can be used for various purposes, and the present invention is based on the findings. To complete.

[0004]

According to the present invention as set forth in claim 1, a large number of strip-shaped bamboo members (1) each made of a thin bamboo member in a thin and long strip shape are laminated in a multilayer so as to alternately intersect each other in the thickness direction. The bamboo laminated base material (2) and the bamboo laminated base material (2) are arranged on both end faces of the bamboo laminated base material (2) in the stacking direction and are thinner than the thickness of the bamboo laminated base material (2) and the width of the strip-shaped bamboo material (1). Bamboo material comprising a decorative material (3) having a width significantly wider than that of the above, and the strip-shaped bamboo materials (1) in the stacking direction and the decorative material (3) and the band-shaped bamboo materials (3) are integrated with each other via an adhesive. It is a synthetic material including a laminated base material.

According to a second aspect of the present invention, in the first aspect, a large number of the strip-shaped bamboo materials (1) are arranged in the vertical direction and the horizontal direction to form vertical members (1a) and horizontal members (1b). The material (1a) and the horizontal material (1b) are knitted together to form a single wide web.
(4) is formed, a large number of the above-mentioned fabrics (4) are laminated, and each fabric (4) is a synthetic material including a bamboo laminated base material integrated with each other via an adhesive. A third aspect of the present invention is the synthetic material according to the second aspect, comprising a bamboo laminated base material in which the outer surface side and the inner surface side of the strip-shaped bamboo material (1) are alternately arranged in the stacking direction. The present invention according to claim 4 relates to claim 1
The synthetic material according to any one of claims 1 to 3, wherein the decorative material (3) includes a bamboo laminated base material having a thin natural stone plate (5) or an artificial stone plate adhered to the surface thereof.

According to a fifth aspect of the present invention, in the method for producing the synthetic material according to any one of the first to third aspects, the strip-shaped bamboo materials (1) in the stacking direction and those and the decorative material ( This is a method for producing a synthetic material including a bamboo laminated base material obtained by pressure-bonding (3) and integrating it via an adhesive, and then polishing the surface of the decorative material (3) to be smooth. According to a sixth aspect of the present invention, in the method for producing the synthetic material according to the fourth aspect, the strip-shaped bamboo materials (1) in the stacking direction and the decorative materials (3) are pressure-bonded to each other. After integrating through the agent, a large number of thin natural stone plates (5) or artificial stone plates having a plane smaller than the entire plane are bonded to the surface of the decorative material (3) with an adhesive, and then a large number of thin sheets Natural stone plate
(5) Alternatively, it is a method for producing a synthetic material containing a bamboo laminated base material, in which the surface of the artificial stone plate is ground flush.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a synthetic material containing a bamboo laminated base material of the present invention, and FIG. 2 is a perspective view of an essential part of one sheet of fabric 4 constituting the bamboo laminated base material 2. This synthetic material has a thick bamboo laminated base material 2 laminated in multiple layers, and a pair of thin decorative materials 3 arranged on both end faces in the lamination direction.
The bamboo laminated base material 2 is obtained by laminating a large number of 10 or more layers of the raw fabric 4 shown in FIG. 2 as an example, and joining the respective raw fabrics 4 with an adhesive. The raw material 4 is composed of a large number of strip-shaped bamboo materials 1 each formed by thinly forming a thin strip-shaped bamboo material in a vertical direction and a horizontal direction to form a vertical member 1a and a horizontal member 1b.
The a and the cross member 1b are knitted together to form one wide piece.

Such raw fabrics 4 are laminated as shown in FIG. 1, and adjacent raw fabrics 4 are arranged so as to be offset by a half pitch of the width of the strip-shaped bamboo material 1 in the vertical member 1a direction and the horizontal member 1b direction. . Then, an adhesive agent is attached to each of the original fabrics 4, and the decorative material 3 is arranged on the upper and lower surfaces of the uppermost and lowermost fabrics 4, and the whole is pressure-bonded with a high pressure press (hot press) under heating to a plate. Shape. Next, the surface of the decorative material 3 is polished to form a flat surface to complete the synthetic material. As an example, the strip-shaped bamboo material 1 has a thickness of 0.5 to 1.2 mm and a width of 5 to 2
It shall be a slender and flexible 0 mm. They may be the skin of the bamboo or may be inside the skin of the bamboo. When made of epidermis, it is particularly dense and strong.

Next, the decorative material 3 can be made of softwood, name wood, cypress, etc., which has a thickness of 1 to 3 mm and is thinly cut into a width of 50 mm or more. This can be obtained by cutting the raw wood thinly in the longitudinal direction.
Furthermore, as in the case of making plywood, it is also possible to use a piece of raw wood that is thinly peeled in the circumferential direction. When a softwood material is used as the decorative material 3, it is preferable to use it in a cold region. Known adhesives can be used as the adhesive. For example, glue, water-based vinyl urethane-based material or epoxy-based material can be used, and the raw material 4 can be dipped in the bonding tank to attach the adhesive. As much as possible,
It is preferable to use a non-formalin adhesive. Further, in the above process, the decorative material 3 and the bamboo laminated base material 2 are simultaneously molded integrally by hot pressing.
First, only the bamboo laminated base material 2 may be molded by hot pressing, and then the decorative material 3 may be bonded to the front and back surfaces of the bamboo laminated base material 2 with an adhesive.

Next, one of the two upper and lower decorative materials 3 is
A conventional bamboo laminated board may be thinly attached instead of the wood material. That is, thinly cut bamboo pieces are arranged in parallel in the same direction, a plurality of layers are stacked, and an adhesive is interposed to form a thin plate shape by hot pressing to manufacture a bamboo laminated wood decorative board. Then, the bamboo laminated wood decorative board and the thick bamboo laminated base material 2 are joined together.
As an example, the bamboo laminated base material 2 can be about 8 mm, and the bamboo laminated wood decorative plate can be about 5 mm. Thereby, a flooring material having a total plate thickness of about 13 mm can be produced.

Next, one of the decorative materials 3 does not necessarily have to be a plant material such as wood, and a thin plate-shaped granite or marble processed into a flat rectangular shape having a predetermined size can be attached. That is, first, as an example, the bamboo laminated base material 2 may be formed into a thickness of about 8 mm, and then a marble of about 7 mm or the like may be attached to the surface thereof with an adhesive.

In addition, a thin wood-based decorative material 3 may be adhered to the surface of the bamboo laminated base material 2, and a thin stone material such as marble may be further adhered thereto with an adhesive. 3 and 4 are a sectional view and a plan view thereof. In this example, after the bamboo laminated base material 2 and the decorative material 3 are completed, the surface of the decorative material 3 is polished to be flat, and the natural stone plate 5 is bonded to the flat surface with an adhesive. In the example of FIG. 4, two natural stone plates 5 of different colors are combined to form a pattern. Then, a large number of the natural stone plates 5 are bonded and then the whole is polished to form a flat surface. Thereby, it can be used as a panel for the entrance floor. Further, it is also possible to arrange the thin natural stone plates 5 of the same color in the shape of an elongated rectangle having a predetermined width in parallel and arrange them on the decorative material 3 to form an outer wall material.

Next, FIG. 5 is a cross-sectional view showing another embodiment of the present invention. In this example, the strip-shaped bamboo members 1 are arranged in a plane to form a first layer, and the first layer is entirely a horizontal member 1b. At the same time, the second layer has the longitudinal members 1a arranged in parallel so as to intersect with it,
The thick bamboo laminated base material 2 is constructed by sequentially changing the parallel direction to form a large number of laminated bodies. Then, thin decorative materials 3 are arranged on the upper and lower surfaces of the bamboo laminated base material 2, and the layers are pressure-bonded to each other by hot pressing with an adhesive. Then, the surface of the decorative material 3 is polished flat.

Next, FIG. 6 shows another embodiment of the raw fabric 4. In this example, three strips of bamboo material 1 are juxtaposed in parallel to form a vertical member 1a, which is also orthogonal to the vertical material. Three pieces 1 are arranged in parallel to form a cross member 1b, and three pieces of the piece 1 are knitted together to form a raw fabric 4. Therefore, this FIG.
In this example, the width of the vertical member 1a and the horizontal member 1b in FIG. 2 is tripled. Of course, the number of the strip-shaped bamboo materials 1 arranged in parallel can be arbitrarily selected. A large number of the thus-prepared webs 4 are laminated to form a thick bamboo laminated base material 2, and thin decorative materials 3 are attached to both upper and lower surfaces thereof to obtain the synthetic plate of FIG. 7. In addition, the bamboo laminated base material 2 may be one in which the strip-shaped bamboo materials 1 are laminated in multiple layers such that a plurality of the bamboo materials 1 alternately intersect in the thickness direction.

[0015]

According to the present invention as set forth in claim 1, on both end faces in the laminating direction of the thick bamboo laminated base material 2 in which the strip-shaped bamboo materials 1 are laminated in multiple layers so as to alternately intersect each other in the thickness direction. Since the decorative material 3 that is wider than the width of the strip-shaped bamboo material 1 and thinner than the thickness of the bamboo laminated base material 2 is attached and integrated, it has strength as a structural material and An inexpensive synthetic material with a beautiful surface can be provided. That is, the bamboo laminated base material 2 in which a large number of strip-shaped bamboo materials 1 are laminated so as to intersect each other in the thickness direction, becomes a structural material having high strength,
A decorative material 3 having a wide width and thinly applied to the surface thereof can provide a synthetic material having a good appearance. Moreover, since the strip-shaped bamboo material 1 is laminated in multiple layers so as to intersect with each other, it can be a structural material having a long life without being deformed.

According to the second aspect of the present invention, the vertical members 1a and the horizontal members 1b of the strip-shaped bamboo material 1 are knitted together to form a single original fabric 4, and a large number of original fabrics 4 are laminated and integrated. Since the bamboo laminated base material 2 is formed by being solidified, the respective band-shaped bamboo materials 1 are tightly bound to each other, and the structural material having stronger strength and good appearance can be obtained. According to the present invention as set forth in claim 3, the inner surface side and the outer surface side of the strip-shaped bamboo material 1 are alternately arranged in the stacking direction to form the bamboo laminated base material 2, so that the deformations due to aging cancel each other. It is possible to provide a structural material that is difficult to deform as a whole. According to the present invention as set forth in claim 4, since the thin natural stone plate 5 or the artificial stone plate is adhered to the surface of the decorative material 3, it does not deform even if it is used for many years and has a good appearance. Can provide walls or floors.

According to the fifth aspect of the present invention, the strip-shaped bamboo materials 1 and the bamboo materials 1 and the decorative materials 3 are pressure-bonded to each other and integrated with an adhesive, and then the surface of the decorative material 3 is polished smoothly. Therefore, it is possible to provide a beautiful synthetic material which is easy to manufacture and has a flat surface with no unevenness. According to the present invention as set forth in claim 6, a large number of thin natural stone plates 5 or artificial stone plates are bonded to the surface of the decorative material 3 with an adhesive, and then the surfaces of the large number of thin natural stone plates 5 or artificial stone plate are made flush. Since the polishing is performed, it is possible to obtain a wide flat surface that is easy to manufacture and has a smooth surface such as the natural stone plate 5. Therefore, if it is used as a building material, it will be a synthetic board that requires no skill and is easy to construct.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a synthetic material including a bamboo laminated base material according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of one sheet of fabric 4 that constitutes the bamboo laminated base material 2 of the same synthetic material.

FIG. 3 is a cross-sectional view of a synthetic material including a bamboo laminated base material according to a second embodiment of the present invention.

FIG. 4 is a plan view showing an example of a planar state of the natural stone plate 5 in FIG.

FIG. 5 is a cross-sectional view of another synthetic material of the present invention.

FIG. 6 is a raw fabric 4 which is a constituent element of the bamboo laminated base material 2 of the present invention.
6 is a schematic perspective view of another example of FIG.

FIG. 7 is a schematic cross-sectional view of a synthetic material using the same material 4.

[Explanation of symbols]

1 band-shaped bamboo 1a Vertical material 1b Horizontal material 2 Bamboo laminated base material 3 cosmetic materials 4 original fabric 5 Natural stone plate

Claims (6)

[Claims] 1. A bamboo laminated base material (2) in which a large number of strip-shaped bamboo materials (1) each made of thin and long strips of bamboo material are laminated in multiple layers so as to alternately cross each other in the thickness direction, and the bamboo assembly. The strip-shaped bamboo material (1) is arranged on both end faces of the base material (2) in the stacking direction and is thinner than the thickness of the bamboo laminated base material (2).
The width of the decorative material (3) is significantly wider than that of the striped bamboo material (1) in the stacking direction, and
A synthetic material comprising a bamboo laminated base material, which is integrated with the decorative material (3) via an adhesive. 2. The vertical bamboo member (1) according to claim 1, wherein a large number of the bamboo strips (1) are arranged in a vertical direction and a horizontal direction to form a vertical member (1a) and a horizontal member (1b). 1
b) and are knitted together to form a single wide web (4), a number of the above webs (4) are stacked, and each web (4) is glued to each other. A synthetic material that includes an integrated bamboo laminated base material. 3. The synthetic material according to claim 2, wherein an outer surface side and an inner surface side of the strip-shaped bamboo material (1) include bamboo laminated base materials arranged alternately in the stacking direction. 4. The synthetic material according to any one of claims 1 to 3, comprising a bamboo laminated base material in which a thin natural stone plate (5) or an artificial stone plate is attached to the surface of the decorative material (3). 5. The method for producing the synthetic material according to claim 1, wherein the strip-shaped bamboo materials (1) in the stacking direction and the decorative materials (3) are pressure-bonded to each other. A method for producing a synthetic material, which comprises a bamboo laminated base material obtained by smoothing the surface of the decorative material (3) after being integrated through an agent. 6. The method for producing a synthetic material according to claim 4, wherein the strip-shaped bamboo materials (1) in the stacking direction and the decorative materials (3) are pressure-bonded to each other through an adhesive. After that, on the surface of the decorative material (3), a large number of thin natural stone boards (5) or artificial stone boards having a plane smaller than the entire flat surface are bonded with an adhesive, and then a large number of thin natural stone boards (5). Alternatively, a method for producing a synthetic material including a bamboo laminated base material, which comprises polishing the surface of an artificial stone plate flush.