JPS58546B2 - Lathe method of melamine decorative panel - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method for constructing melamine decorative laminate panels.

High-pressure or low-pressure melamine decorative boards are made by simultaneously press-molding the surface layer of printed paper etc. impregnated with melamine resin and the back layer of kraft paper etc. impregnated with phenol resin. has a large shrinkage over time, and when it is installed as a panel by nailing or screwing, cracks will grow from the area due to the internal strain generated during nailing or screwing, and the heads of the nails or screws will be damaged. It was difficult to install because the growth exceeded the area of the area, resulting in a markedly poor appearance after construction.

Therefore, adhesive construction methods are often used, but it is difficult to perform such methods as compression or joint alignment, and it takes a long time.

In addition, the area where the panels are installed is high temperature, such as a bathroom.
In humid areas, panels with melamine decorative boards as surface materials have been difficult to use on vertical surfaces, such as in bathrooms or as building materials, because they expand and contract so much that peeling or warping occurs at adhesion defects.

The purpose of the present invention is to establish a highly reliable construction method for melamine decorative laminate panels that improves the above-mentioned drawbacks of conventional methods by using nailing or screwing construction methods that are easier to construct on-site and can be completed in a shorter time than adhesive construction methods. It's about doing.

The features of the present invention are as follows: First, a hair line is applied to the surface melamine resin laminated portion of the melamine decorative board, or the melamine resin laminated portion and the phenol resin laminated portion with a knife, and then the nails or screws are attached to the melamine decorative board. The purpose is to prevent the growth of cracks that occur.

The second feature is that the joints between panels and the building base material (framework) are completely filled and bonded with a foamed epoxy resin composition that is easily foamed and volume-expanded at room temperature. It is.

The third purpose is to use a joiner to cover up the hairline, nails or screws, and panel joint joints to improve the appearance after construction.

Fourth, a warp-preventing back-up material is adhered to the base material surface to prevent the panel itself from warping.

Next, the present invention will be explained with reference to the drawings.

A melamine decorative board on the front surface and a warp prevention laminate 6 on the back surface are bonded to a panel base material 5 with an adhesive 4 to form a melamine decorative board panel.

Next, a hairline 3 is applied to the melamine resin laminated portion 1 or the melamine resin laminated portion and the phenol resin laminated portion 2 using a knife to form a melamine decorative board panel with hairline.

Next, when constructing the panel, it is fixed to the building base material (frame) 10 with nails or screws 8 closer to the joints than the hairline.

Next, the foamed epoxy resin composition 9 is applied or injected into the joint using a spatula or a grease gun.

Next, a joiner 7 is inserted to cover the joints, nails or screws, and hairline parts, and also to reinforce the joints, and is temporarily fixed until the foamed epoxy resin composition is cured. After the composition is cured, it is removed. The construction method is finished.

Here, the melamine decorative board refers to a surface decorative material whose surface is made of melamine resin and which is press-molded under high or low pressure.

The anti-warpage laminate to be attached to the back of the panel is usually a phenolic resin laminate of the same quality as the surface decorative laminate, but it may also be FRP, metal plate, or the like.

Panel base materials include wood and synthetic wood (synthetic resin foam).
, refers to ordinary building materials such as ceramic products and metal products.

Furthermore, nails or screws refer to items made of metal, wood, etc. that have the ability to hold panels.

In addition, the building base material is usually called a frame and refers to something like a wooden or metal rectangular bar or a wooden brick.

Joiners include metals such as aluminum sash, stainless steel, wood, synthetic wood, and various rubbers (gaskets), and the surfaces of these base materials are coated with paint, synthetic resin sheets, post-form decorative boards, etc. This refers to items that have a protective role and are commercially available in various shapes.

The foamed epoxy resin composition used as an essential component of the construction method includes foamed epoxy-amine resins, foamed epoxy-chloroprene polymer compositions, foamed polysulfide-epoxy resin compositions, and methyl hydrogen as a blowing agent. Refers to those that use empolysiloxane.

As an effect of the present invention, firstly, by applying the hairline, the growth of cracks caused by nails or screws in the melamine decorative board can be prevented by the hairline.

Second, compared to adhesive construction methods, it is possible to employ nailing or screwing construction methods, which are easier to construct on-site and can be completed in a shorter time.

Thirdly, the epoxy resin-based foaming composition easily foams and expands in volume at room temperature, and after curing, it can be used to adhesively fill panels and panels, and panels and building base materials (framework) with high adhesive reliability. enough is done.

Fourth, since epoxy resin foam is a closed foam, it is necessary to prevent water and moisture from entering from the decorative board and base material at panel joints, and from the panel base material and building base material (framework). The adhesive filling effect is kept intact.

Fifth, since the epoxy resin foam is lightweight and flexible, it can sufficiently withstand expansion and contraction of the panels.

Sixth, since the hairline and panel joint joints are covered with a joiner, the appearance after construction can be kept beautiful.

Seventhly, if a post-formed joiner is used, it can be made to match the pattern of the panel decorative board, so an even better finish can be maintained.

Therefore, by establishing this construction method, it is now possible to install melamine decorative boards in areas with severe usage conditions, such as bathrooms and ships, and on vertical surfaces of general houses, which was previously considered impossible, thereby expanding the applications of melamine decorative boards.

Next, the present invention will be explained by examples.

Example 1 A 1.0 m/m thick high-pressure melamine decorative board and a 1.0 m thick phenolic resin laminate were pasted on the front side of a 4 m/m thick type 1 plywood board using a rubber adhesive to form a panel. did.

Next, hair lines with a depth of about 0.5 m/m were applied at a distance of 15 m/m from both ends of the melamine decorative board surface to form a panel with hair lines as shown in FIG.

Next, as shown in Fig. 2, the panel was attached to the wooden frame, which is the base material of the building, using screws from the hairline to the joints.

Next, a foamed epoxy resin composition as shown in Table 1 (Example 1
) was applied using a grease gun to the joints and edges of both ends of the panel.

Next, a joiner which had been previously processed into a melamine decorative board post form was fitted onto the surface of the lauan material, and the joiner was temporarily fixed using adhesive tape for temporary fixing until the foamed epoxy resin composition was cured.

Two days after construction, the temporary fixing tape was removed to complete the construction method of the present invention.

Example 2 In Example 1, a 4 m/m thick asbestos cement board was used as the panel base material, and a panel with hair lines as shown in FIG. 1 was prepared in the same manner as in Example 1.

Next, as shown in FIG. 3, the ends of the metal rim were sealed with adhesive tape, and then the panel was constructed in the same manner as in Example 1.

Next, a foamed epoxy resin composition as shown in Table 1 (Example 2
Use a grease gun to apply and inject the adhesive to the joints, edges, and tape at both ends of the panel.

Next, an aluminum joiner was fitted, and the joiner was temporarily fixed with adhesive tape until the foamed epoxy resin composition was cured.

Two days after construction, the temporary fixing tape was removed to complete the construction method of the present invention.

[Brief explanation of drawings]

FIG. 1 shows a cross-sectional view of a panel with hair lines. FIG. 2 shows a finished sectional view of the planar joint. Figure 3 shows a finished cross-sectional view of the corner joint. Each number in the figure indicates the following. DESCRIPTION OF SYMBOLS 1...Melamine resin resin part, 2...Phenolic resin laminated part, 3...Hairline, 4...Adhesive, 5...Panel base material, 6...Warp prevention back-up material, 7... Joiner 1
8... Nail or screw, 9... Engineered poxy resin foam, 10
...Brim, 11...Sealing tape.

Claims (1)

[Scope of Claims] A surface melamine resin laminated portion or a melamine resin laminated portion of a melamine decorative temporary laminate panel in which a high-pressure or low-pressure melamine decorative laminate is adhered to the surface of one base material and an anti-warp back-up material is bonded to the back surface. Apply a hairline to the phenolic resin laminated part with a knife, etc., and fix the panel to the building base material (framework) with nails or screws at the edge of the panel outside the hairline. A cold-curable epoxy resin composition (hereinafter referred to as a foamed epoxy resin composition) is filled and bonded to the joint area, and then a joiner is used to cover the hair line area, nails or screws, and the filled and adhesive joint area. A method of constructing a melamine decorative board panel characterized by concealment.