JPS634151A - Water resistant building panel and door using the same - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a water-resistant wooden building board and a door using the water-resistant building board.

[Background technology] Wooden construction boards are used in a variety of fields, including residential and non-residential uses, due to the unique wood texture such as wood grain, color tone, and pattern, as well as properties such as insulation, heat retention, and water absorption. There is a strong demand for this. However, the disadvantages of wood (easy discoloration,
(easy to get dirty, easy to go crazy, easy to dry out, easy to crack, easy to rot, easy to grow mold), the durability is limited, especially in plumbing areas (kitchens, bathrooms, washrooms, toilets, etc.) and outside ffi' ) field, the influence of moisture is large;
It is almost no longer used because the shortcomings of wood become obvious and it becomes difficult to secure high-quality wood resources.

Also, for the same reason, wooden doors are almost no longer used in the water selection and exterior applications. As for doors, metal doors and plastic doors appeared, but they were far from the original texture of wooden doors (and very few were satisfactory).

[Purpose of the Invention] The present invention was invented in view of the above points, and its focus is on the problems of discoloration, stains, warping, dry cracking, etc., which are the disadvantages of conventional wooden construction boards. To provide a water-resistant building board with improved corrosion resistance, mold growth, etc., and a door using the water-resistant building board.

[Disclosure of the Invention] The present invention provides a water-resistant material characterized in that a sealing layer 2 is formed on the outer surface of a core material 1, and a veneer 3 impregnated with a synthetic resin is adhered to the outer surface of this seal 7!2. A construction board is the first invention, and a sealing layer 2 is formed on the outer surface of the core material 1,
A veneer 3 whose outer surface of the sealing layer 2 is impregnated with synthetic resin
A second invention provides a door using a water-resistant building board, characterized in that a water-resistant building board 4 is formed by pasting a water-resistant building board 4, and a door 5 is formed from this water-resistant building board 4. This invention relates to the invention, and by adopting such a configuration, the above-mentioned conventional problems are solved.

In other words, by forming the seal M2 on the outer surface of the core material 1 and impregnating the veneer 3 with synthetic resin, water resistance is improved and furthermore, discoloration, dirt, warping, cracking, rotting, mold growth, etc. are prevented. This could have been prevented.

First, the first aspect of the present invention will be explained. The core material 1 used in the present invention may be solid wood, laminated wood, wood-based materials such as plywood, particle board, or insulation board, or organic chemical-based material such as vinyl chloride foam or plastic board. There are various types, such as inorganic foams, silicate plates, calcium carbonate plates, and other inorganic types, aluminum plates, copper plates, and other metal types, and composites or mixtures thereof. Among these, the required performance such as weight, hardness, fire resistance, and fire resistance,
Select based on purpose of use, field, etc. In either case, it is desirable to select a material with good fire resistance.In the case of wood, solid wood should be selected from materials with good water resistance such as cypress, cypress, and pine, and laminated wood and plywood should be selected. In other cases, it is also preferable to use a water-resistant material made of softwood, and it is more preferable that the material is treated with antiseptic and antifungal treatment.

A seal, r12, is formed on the outer surface (in the example, the front and back surfaces) of the core material 1 selected in this manner. This sealing layer 2 can be formed by bonding a metal plate (foil) made of aluminum, copper, stainless steel, etc. to the outer surface of the core material 1, by welding a hot melt type adhesive film, or by bonding a resin sheet. The seal layer is formed by coating the seal layer with water or by applying a paint. At this time, it is preferable to form a seal layer with good water resistance (and heat resistance if necessary).

Next, the veneer 3 used in the present invention is a straight-grained or board-grained veneer (0°1 to 5.0
1) based on design, materials, cost, etc.
This veneer 3 is impregnated with synthetic resin. The synthetic resin for impregnation may be commonly used synthetic resins such as polyester, phrethane, and acrylic, but it is desirable to select a type that has good water resistance and weather resistance. Impregnation of the synthetic resin into the veneer 3 is carried out by normal pressure immersion, reduced pressure injection, pressurized injection, or a combination of these methods, and the impregnation rate is kept within the range of 5 to 70%. If the impregnation rate is less than 5%, the wood has disadvantages (discoloration due to the action of water, stains, rot, dimensional changes, etc.)
4) There is no improvement effect (and if it exceeds 70%, the texture of the wood will be impaired).

A waterproof building board 4 according to the present invention is obtained by adhering the veneer 3 treated as described above to the sealing layer 2 of the core material 1 having the sealing layer 2 formed on its outer surface.

In this case, hot-melt adhesive film or liquid adhesive is used for adhesion, but reaction-curing adhesives with good water resistance, such as epoxy, resorcinol, and urethane, are preferred; An appropriate one is selected depending on the type of synthetic resin impregnated into the seal layer 3 and the type of the seal layer 2.

EXAMPLES The first aspect of the present invention will be specifically explained below using examples.

<Example 1> Karasu pine cross plywood with a thickness of 10+A (insect proof,
A 20 μm stainless steel foil 2a was adhered thereto as a seal N2 using an epoxy adhesive.

Add rice veneer (thickness 3, Omm) to this.

Straight grain) impregnated with 43% Turethane resin was similarly bonded using epoxy adhesive. Furthermore, there is a seal layer 2 on the back side.
Water-repellent Thief 2b was applied to the entire surface to obtain a water-resistant construction board 4 as shown in FIG. A bathroom wall was made using this water-resistant construction board 4.

<Example 2> As the core material 1, a 9-layer thick silicate sheet was used, and on the surface of the core material 1, a 15 μm copper foil was bonded as the sealing layer 2 using a hot-melt type adhesive sheet.

A Taiwanese cypress veneer (thickness: 2.5 cm, grain size) impregnated with 14% acrylic resin was adhered to this using an acrylic adhesive. Further, a water-resistant sheet as a sealing layer 2 was adhered to the back surface of the core material 1 to obtain a water-resistant building board 4. This water-resistant building board 4 was processed to make a ceiling for the kitchen.

Example 3 A 12 m+m thick solid cedar laminated wood (insect-proof and antiseptic treated product) was used as the core material 1, and a water-repellent paint was applied thereto as the sealing layer 2. This was treated in the same manner as in Example 2 to obtain a water-resistant building board 4. This water-resistant building board 4 was processed to make a wall for a toilet.

In all of the above-mentioned examples 1 to 3, there was no discoloration, staining, deformation, dry cracking, rot, mold growth, etc. after construction.

Note that the water-resistant building board 4 shown in FIG. 1 has a veneer 3 impregnated with synthetic resin applied only to the surface of the core material 1 having a sealing layer 2; however, if necessary, the core material 1 having a sealing layer 2 may be A veneer 3 impregnated with a synthetic resin may be attached to both the front and back surfaces of the core material 1 (and, if necessary, the veneer 3 may be attached to the entire outer surface of the core material 1 which has a sealing layer 2 on the entire outer surface.

Next, the second invention of the present invention will be explained.

The water-resistant building board 4 formed in the first invention is processed to form a frame material 6 such as an upper frame, a lower frame, a vertical frame, etc., and this frame material 6
A door body 7 is formed by framing the door body 7, and a door 5 is formed by attaching a glass-like face plate 8, a looper 9, etc. to the door body 7. In addition, there are various joining methods for joining the frame material 6, such as dowel joining, Yatoi joining, Ji9ind joining, and adhesive bonding methods, but mechanical joining and Tsuma'fi mechanical joining using both methods are available. A combined method of adhesion is desirable.

In the above embodiment, a plurality of frame members 6 are formed from the water-resistant building board 4, the frame members 6 are assembled to form a door body 7, and a face plate 8 and the like are attached to the door body 7. However, the door 5 made entirely of wood can also be formed from the water-resistant building board 4.

Note that the door 5 has the veneer 3 impregnated with synthetic resin adhered not only to the front and back surfaces (also to the side, top, and bottom surfaces).

[Effects of the Invention] In the present invention, as described above, a sealing layer is formed on the outer surface of the core material, and a veneer impregnated with a synthetic resin is attached to the outer surface of this sealing layer, so that the sealing layer is not exposed on the surface. The parts are treated with synthetic resin, which improves discoloration and staining caused by contact with water, and the sealing layer effectively prevents dimensional changes in each part due to water absorption, resulting in curling, warping, and cracking. Furthermore, the veneer impregnated with synthetic resin and the sealing layer significantly improve rot resistance, and the wood texture, heat retention, handle, etc. can be maintained as is. Moreover, in the second invention of the present invention, a sealing layer is formed on the outer surface of the core material as described above, and a veneer impregnated with a synthetic resin is pasted on the outer surface of this sealing layer. Since we formed a water-resistant construction board using this water-resistant construction board and used this water-resistant construction board to form a door, we can provide a door with a wood texture that is free from discoloration, stains, warping, dry cracks, rot, mold growth, etc. be.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the water-resistant building board of the present invention, Fig. 2 is a perspective view of a door using the water-resistant building board of the present invention, and Fig. 3 is a partially broken view of the same frame material. In the perspective view, 1 is a core material, 2 is a sealing layer, and 3 is a veneer. Agent Patent Attorney Ishi 1) Ai 7 Figure 1 Figure 3

Claims (2)

[Claims] (1) A water-resistant construction board characterized by forming a sealing layer on the outer surface of a core material and pasting a veneer impregnated with a synthetic resin on the outer surface of this sealing layer. (2) Form a sealing layer on the outer surface of the core material, adhere a veneer impregnated with synthetic resin to the outer surface of this sealing layer to form a water-resistant building board, and form a door with this water-resistant building board. A door using a water-resistant construction board characterized by being made of.