JPH11129212A - Manufacture of decorative sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing a decorative sheet, the hardness of the surface of which can be maintained and the productivity of which is favorable. SOLUTION: In the manufacturing method of a decorative sheet executed by laminatingly pasting a decorative material to the surface coated with an adhesive of a woody board 11, the adhesive made of a thermoplastic resin 12 is applied to surface of the woody board 11 and then an adhesive made of a thermosetting resin 13 is applied to the surface of the adhesive made of the thermoplastic resin 12. Finally, the decorative material is laminatingly pasted to the surface of the adhesive made of the thermosetting resin 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a decorative board used for furniture, fittings, building materials and the like.

[0002]

2. Description of the Related Art Heretofore, as a method of manufacturing a decorative board, there has been known a method of applying a vinyl acetate-based adhesive to the surface of a wooden substrate and then attaching a decorative material thereto. However, the decorative plate manufactured by this method has a problem that the surface is easily damaged. Therefore, as described in JP-A-61-25836, a mixture of an adhesive made of a thermoplastic resin and an adhesive made of a thermosetting resin is applied to the surface of a wooden substrate, and then the cosmetic is applied. A method of obtaining a material by hot-pressing has been proposed.

[0003]

However, in the method for manufacturing a decorative board described in Japanese Patent Application Laid-Open No. 61-25836, the decorative board obtained hardens the surface of the decorative material by hardening a thermosetting resin. Although it was possible to prevent scratching to some extent, the surface hardness was still unsatisfactory, and furthermore, it was necessary to mix two kinds of adhesives, resulting in a high productivity. There was a problem that it was inferior. The present invention has been made in view of such circumstances, and while maintaining the hardness of the surface of the decorative material,
It is an object of the present invention to provide a method for producing a decorative board having good productivity.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The method for manufacturing a decorative board according to the present invention is a method for manufacturing a decorative board in which an adhesive is applied to the surface of a wooden substrate and a decorative material is laminated and adhered, wherein an adhesive made of a thermoplastic resin is applied to the surface of the wooden substrate. Then, an adhesive made of a thermosetting resin is applied to the surface of the adhesive made of the thermoplastic resin, and the decorative material is laminated and adhered to the surface of the adhesive made of the thermosetting resin.

[0005]

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 an explanatory view of a method of manufacturing a decorative board according to an embodiment of the present invention, and FIG. 2 is a partially enlarged sectional view of the decorative board manufactured by the method of manufacturing a decorative board. As shown in FIG. 2, the decorative board 10 manufactured by the method for manufacturing a decorative board according to one embodiment of the present invention has a decorative surface on a surface of a wooden substrate 11 through a thermoplastic resin 12 and a thermosetting resin 13. The material 14 is laminated.
This will be described in detail below.

The wood substrate 11 is made of plywood, LVL (Lami).
native Venue Number) and LVB
(Laminated Veneer Board) and other single-layer laminated materials, OSB (Oriented Strand)
d Board) or LSL (Laminated St)
strand board, MD, etc.
F (medium fiberboard) can be used. In the case where the surface has fine cellular structural irregularities on the painted surface, it is necessary to fill the irregularities in order to fill the irregularities and obtain a smooth surface. As the decorative material 14, a sheet-shaped material such as a printed decorative paper or a decorative synthetic resin sheet, a veneer, or the like can be used. As the thermoplastic resin 12, a vinyl acetate resin emulsion adhesive which is an adhesive for wood can be used. As the thermosetting resin 13, a phenol resin adhesive, a melamine resin adhesive, a urea resin adhesive, or the like, which is an adhesive for wood, can be used.

FIG. 1 shows a main part of a decorative board manufacturing apparatus 15 to which a method for manufacturing a decorative board according to an embodiment of the present invention is applied. On the upstream side, the decorative board manufacturing apparatus 15 applies the thermoplastic resin 12 to the surface of the wooden substrate 11 by the first roll coater 16 and conveys the wooden substrate 11 on which the thermoplastic resin 12 has been applied to the downstream side. Then, the thermosetting resin 13 is further applied to the surface of the thermoplastic resin 12 by the second roll coater 17, and the thermoplastic resin 12 and the thermosetting resin 13 are applied.
There is provided a transport roller table 18 for transporting the wooden substrate 11 on which the decorative material 14 has been applied onto a thermosetting resin 13 to a sticking device (not shown) for laminating and attaching the decorative material 14.

[0008] The first roll coater 16 is used for the wooden substrate 1.
A large supporting roller 16a for supporting the supporting roller 1;
6a, a large-diameter application roller 16b disposed above with a predetermined roll gap G therebetween, and a predetermined gap H held above the application roller 16b and formed above the application roller 16b. An adhesive holding roller 16c capable of holding the thermoplastic resin 12 as an adhesive is provided in the space. Similarly to the first roll coater 16, the second roll coater 17 has a large-diameter support roller 17a for supporting the wooden substrate 11.
A large-diameter application roller 17b disposed above the support roller 17a with a predetermined roll gap S therebetween; and a large-diameter application roller 17b disposed above the application roller 17b while maintaining a predetermined gap T therebetween. Is provided with an adhesive holding roller 17c capable of holding the thermosetting resin 13 of the adhesive in the space defined by.

The support roller 16a and the application roller 16b (or the support roller 17a and the application roller 17b) can transport the wooden substrate 11 to the downstream side of the transport roller table 18 while applying a predetermined pressure to the wooden substrate 11. like,
In the direction shown by the arrow in the figure, while rotating synchronously opposite to each other,
Support rollers 16a, 17a and application rollers 16b, 17b
Is the same as the transport speed of the transport roller table 18. Further, the adhesive holding rollers 16c and 17c are adapted to rotate synchronously with respect to the application rollers 16b and 17b, respectively, in directions opposite to each other in the directions shown by arrows in the figure. The gaps H and T are determined based on the application thickness and viscosity of the thermoplastic resin 12 and the thermosetting resin 13, the transport speed of the wooden substrate 11, and the like.

For a sticking apparatus for laminating and attaching a decorative material 14 to a wooden substrate 11 on which a thermoplastic resin 12 and a thermosetting resin 13 are applied, a known material is used when the decorative material is a sheet. It can be adhered by a heat roll through a laminator, but when the decorative material is a veneer, the wooden substrate 11 coated with the thermoplastic resin 12 and the thermosetting resin 13 is used.
Is temporarily placed, put in a known hot press, and adhered. The application roller 16b is smoothed by filling the thermoplastic resin 12 into fine irregularities on the surface of the wooden substrate 11, and the application roller 17b is also smoothed so that the thermosetting resin 13 is smooth. May be a mechanism capable of rotating forward and backward with respect to the transport direction.

Next, a method of manufacturing a decorative board according to an embodiment of the present invention will be described with reference to FIG. The wooden substrate 11 cut to a predetermined size is placed on a transport roller table 18 and transported, and the first roll coater 16
Thereby, the thermoplastic resin 12 is applied on the surface of the wooden substrate 11. Further, the wooden substrate 11 on which the thermoplastic resin 12 is applied is transported by the transport roller table 18, and the surface of the wooden substrate 11 on which the thermoplastic resin 12 is applied is transported by the second roll coater 17 on the downstream side. To the transfer roller table 18
To the sticking device. Further, by using a sticking device, the decorative material 14 is further laminated on the surface of the wooden substrate 11 on which the thermoplastic resin 12 and the thermosetting resin 13 are applied, and hot-pressed by hot pressing.
The manufacture of the decorative board 10 is completed.

[0012]

【Example】

(Example 1) First 5 mm thick MDF (medium fiber board)
After applying 40 parts by weight of a vinyl acetate resin emulsion adhesive as an example of the thermoplastic resin 12 by a roll coater 16, a urea formalin-based resin as an example of the thermosetting resin 13 is subsequently applied by a second roll coater 17. 60 parts by weight of an adhesive is applied, and a pre-coated printed decorative paper, which is an example of the sheet-like decorative material 14, is continuously adhered to the surface by a heat roll through a laminator to obtain a desired decorative plate. Was. (Example 2) After applying 70 parts by weight of a vinyl acetate resin emulsion adhesive as an example of the thermoplastic resin 12 to a plywood having a thickness of 12 mm by a first roll coater 16, subsequently, a second roll coater 17 was used. 30 parts by weight of a urea-melamine-based resin adhesive as an example of the thermosetting resin 13 is applied, and a thickness of 0.5 as an example of the decorative material 14 is applied to the surface.
mm veneer veneers were stacked, placed in a hot press and bonded by hot pressing, and the veneer surface was painted and finished to obtain the desired decorative plate 14.

Therefore, in the method for manufacturing a decorative board according to one embodiment of the present invention, an adhesive made of a thermoplastic resin and an adhesive made of a thermosetting resin are provided on the surface of a wooden substrate as in the prior art. Since there is no mixing operation, productivity is improved. In addition, in the decorative board obtained, the surface of the decorative material can be hardened by curing the thermosetting resin immediately below the decorative material, and it can be prevented from being scratched, and also has water resistance to moisture from the surface. Can be improved.

In the present embodiment, the adhesive is applied by a roll coater. However, the present invention is not limited to this, and any method may be used as long as the adhesive can be applied to the surface of the wooden substrate. .

[0015]

According to the method for manufacturing a decorative board according to the first aspect, an adhesive made of a thermoplastic resin and then an adhesive made of a thermosetting resin are applied to the surface of the wooden substrate, and the decorative material is applied to the surface. Because it is laminated and pasted, as before,
Since there is no work of mixing the adhesive made of a thermoplastic resin and the adhesive made of a thermosetting resin, productivity is improved.
Furthermore, since the thermosetting resin is located directly below the cosmetic material,
The decorative board obtained can harden the surface of the decorative material by curing the thermosetting resin, prevent scratches, and simultaneously improve the water resistance to moisture from the surface.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a method for manufacturing a decorative board according to one embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of a decorative board manufactured by the method for manufacturing a decorative board.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Decorative board 11 Wood substrate 12 Thermoplastic resin 13 Thermosetting resin 14 Decorative material 15 Decorative board manufacturing apparatus 16 First roll coater 16a Support roller 16b Application roller 16c Adhesive holding roller 17 Second roll coater 17a Support roller 17b Application roller 17c Adhesive holding roller 18 Transport roller table

Claims (1)

[Claims] 1. A method of manufacturing a decorative board in which an adhesive is applied to a surface of a wooden substrate and a decorative material is laminated and attached, wherein an adhesive made of a thermoplastic resin is applied to the surface of the wooden substrate. A method for manufacturing a decorative board, in which an adhesive made of a thermosetting resin is applied to the surface of an adhesive made of a resin, and the decorative material is laminated and attached to the surface of the adhesive made of the thermosetting resin.