JPH10266540A - Board material for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To greatly limit a warp by a method wherein a moisture-proof sheet of three-layered structure, in which a paper material, synthetic resin film, and paper material are successively stacked, is bonded to each side of a base material comprising a fiber board and a decorative sheet is bonded onto the moisture-proof sheet. SOLUTION: Moisture-proof sheets 12, 13 of three-layered structure, in each of which a paper material 15, synthetic resin film 16, and paper material 17 are stacked successively, are bonded to the opposite sides of a base material 11 comprising a fiber board, respectively. And a decorative sheet 14 comprising a letterpress or printing paper is bonded to the surface of the sheet 12 on the front side and the surface of the sheet 14 is coated with urethane coating material to form a board material 10 for architecture. In addition, a cushioning sheet such as non-woven fabric, rubber etc., is bonded to the bottom side of the sheet 13 on the rear side of the material 10 to improve sound-insulation characteristics. Since the moisture-proof sheet isolates the moisture, a warp of the material can be greatly limited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building plate that can be used, for example, as a floor material.

[0002]

2. Description of the Related Art There is a wood flooring material in which a decorative veneer is joined to the surface of a plywood via an adhesive, and painted as required, and is widely used as a flooring material and sometimes as a wall material. However, since the plywood is mainly made of southern timber, an alternative board is required in accordance with restrictions on the cutting of southern timber. Therefore, there is a fiberboard which is obtained by boiling wood, defibrating, applying an adhesive, and hot-pressing into a plate shape. This is used for building materials, and MDF (specific gravity: 0.4 to 0.8) is used. What is called medium fiberboard) has been preferably used.

[0003]

SUMMARY OF THE INVENTION However, MDF
There is a problem that moisture is absorbed and released by the surrounding moisture to cause warpage. Furthermore, thinning is considered in consideration of cost, remodeling characteristics, and the like. However, a thin MDF has a drawback that warpage is very likely to occur, and after construction, push up between decorative boards and the like occur. There was a problem. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a building board using a fiberboard in which warpage is reduced as much as possible.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The described building board has a three-layer moisture-proof sheet in which a paper material, a synthetic resin film, and a paper material are sequentially laminated on both surfaces of a substrate made of a fiber board. According to a second aspect of the present invention, there is provided the architectural plate according to the first aspect, wherein a decorative sheet made of a veneer or decorative paper is adhered on the surface of the moisture-proof sheet, and further coated thereon. Processing has been done.

According to the first and second embodiments, a three-layer moisture-proof sheet in which a paper material, a synthetic resin film and a paper material are sequentially laminated is bonded to both surfaces of a base material made of a fiberboard. Therefore, absorption and discharge of moisture from the front and back surfaces of the substrate are prevented. Therefore, the warpage of the substrate made of the fiberboard is reduced as much as possible. In particular, the building plate according to claim 2 is
A decorative sheet made of veneer or decorative paper is attached to the surface of the moisture-proof sheet on the front side, and a coating treatment is further performed thereon, so that the decorative effect can be enhanced.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a sectional view of a building plate according to one embodiment of the present invention, and FIG. 2 is a sectional view of a building plate according to another embodiment.

As shown in FIG. 1, an architectural board 10 according to one embodiment of the present invention includes a base 11 made of a fiberboard,
Moistureproof sheets 12, 1 attached to the front and back surfaces
3 and a veneer plate 14 which is an example of a decorative sheet adhered to the moisture-proof sheet 12 on the front side. Hereinafter, these will be described in detail.

The substrate 11 made of a fiberboard is preferably made of M
Although the DF is used, a hard board having a specific gravity of 0.8 or more may be used. However, an insulation board having a specific gravity of less than 0.4 cannot be used because it has no strength. The adhesive constituting the fiberboard includes U type (urea resin), M type (melamine resin), F type (phenol resin) and the like, and any adhesive may be used. The thickness is set to about 2.5 to 5 mm except for a special use.

[0009] Moisture-proof sheet 1 attached to both sides of the substrate
2 and 13 each have a three-layer structure, in which a paper material 15, a synthetic resin film 16, and a paper material 17 are sequentially laminated. Here, Japanese paper or kraft paper is used as the paper materials 15 and 17, and polyethylene, polypropylene, or the like is used as the synthetic resin film 16. This moisture-proof sheet 12, 1
In the formation of 3, three sheets may be pasted on the front and back of the substrate 11 in a state where three sheets are laminated in advance via an adhesive, or the paper material 15 may be pasted on the front and back of the substrate 11, respectively. Then, the synthetic resin film 16 may be attached, and finally, the paper material 17 may be attached.

Although a known veneer 14 is adhered to the surface of the moisture-proof sheet 12 on the front side, a decorative sheet made of printing paper or the like may be used in place of the veneer 14. Then, the surface is coated with a urethane paint or the like. In addition, a male nut 18 and a female nut 19 are formed on the periphery of the architectural plate 10 to improve workability. by this,
Although a fiberboard is used for the base material 11, the moisture-proof sheets 12 and 13 are adhered to the front and back surfaces, so that the absorption and release of moisture is prevented and the occurrence of warpage is extremely reduced. Moreover, since the veneer is adhered to the surface, the design is excellent.

Next, a description will be given of a building plate 20 according to another embodiment of the present invention shown in FIG. 2, and the same components as those of the building plate 10 according to the embodiment will be denoted by the same reference numerals. The detailed description is omitted. A buffer sheet 21 made of, for example, nonwoven fabric or rubber is adhered to the bottom surface of the moisture-proof sheet 13 on the back side to enhance sound insulation. Thereby, it can be used as a floor material used for a floor of two or more floors.

The architectural plates 10 and 2 according to the above embodiment
In the case of 0, the surface was smooth, but it is also possible to make an appropriate cut in the surface to give a brick tone. In this case, when a cut is made only in the veneer 14 and no cut is made in the moisture-proof sheet 12, the occurrence of warpage is further suppressed, but even if a cut is made in the surface of the base material 11, a water-resistant paint By applying, the absorption and release of moisture can be prevented.

[0013]

According to the first and second aspects of the present invention, the three-layer moisture-proof sheet blocks moisture, so that the architectural sheet can be significantly suppressed from warping. As a result, it is possible to provide an architectural plate material that can be used as a floor material or a wall material by using a relatively easily available and inexpensive fiberboard and that has less warpage. In particular, since the decorative sheet is attached to the surface of the moisture-proof sheet on the front side and further subjected to a coating treatment thereon, the decorativeness can be enhanced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a building plate according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a building plate according to another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Construction board material 11 Base material 12 Moisture-proof sheet 13 Moisture-proof sheet 14 Veneer board (decorative sheet) 15 Paper material 16 Synthetic resin film 17 Paper material 18 Male real 19 Female real 20 Building board 21 Buffer sheet

Claims (2)

[Claims] An architectural plate material comprising a three-layer moisture-proof sheet in which a paper material, a synthetic resin film and a paper material are sequentially laminated on both surfaces of a base material made of a fiberboard. 2. The architectural plate material according to claim 1, wherein a decorative sheet made of veneer or decorative paper is adhered on the surface of the moisture-proof sheet, and a coating process is further performed thereon.