JPH10235803A - Decorative sheet and flash panel using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology for securely and inexpensively preventing warps and deviations generated by moisture absorption and discharge for a decorative sheet using an MDF(middle specific gravity fiber sheet). SOLUTION: The phenol type, the melamine type and the like are available as an MDF2, and the use of the melamine type of superior resistance to water is recommendable. A thin MDF2 of thickness of approximately 2-5mm is used for a decorative sheet 1. A thin leaf, a titanium paper, a graft paper and the like of approximately 23-30g/m<2> are used for a decorative sheet 4 and a lining paper 5, and the required decoration is applied on the surface of a surface decorative sheet 4 by printing or the like. Polyethylene, polypropylene, polyvinydeline and the like are used for a synthetic resin film 3, and its thickness is approximately 20-60μm. The decorative sheet is bonded on one face of a middle specific gravity fiber sheet through a synthetic resin film, while the decorative sheet bonded on with the lining paper is laminated on the other face through a core material, by which moisture absorption and discharge are shut off by the synthetic resin film to prevent the generation of warps and deviations as much as possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative panel mainly used for a door panel and a flash panel using the same. The present invention relates to a technique for preventing warpage and disorder.

[0002]

2. Description of the Related Art A decorative board using MDF as a base material has a poor dimensional stability due to a change in humidity as compared with a plywood sheet, and causes warpage or irregularity. For this reason, warpage prevention methods such as laminating vinyl chloride resin sheets on both sides of MDF and laminating aluminum sheets on both sides of MDF have been proposed.
These are all techniques for blocking the movement of moisture to MDF, and their effects have been confirmed.

However, in the method (1), when the vinyl chloride resin burns due to a fire or the like, chlorine gas is generated, which poses a problem for the environment and the human body. In addition, a special ethylene vinyl acetate resin (EVA) is used for bonding to wood. System), and the cost must be increased. According to the method (1), the aluminum sheet itself is expensive, and it is difficult to completely bond the aluminum and the wooden material.

[0004] An object of the present invention is to provide a technique capable of reliably and inexpensively preventing warpage and deviation caused by moisture absorption and release in a decorative board using MDF.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a decorative board in which decorative paper is bonded to one side of a medium specific gravity fiberboard via a synthetic resin film and a backing paper is bonded to the other side, and one side of the medium specific gravity fiberboard. Decorative paper with a decorative paper bonded to it through a synthetic resin film and a backing paper bonded to the other surface through a synthetic resin film, and decorative paper with a decorative paper bonded to one surface of a medium-density fiberboard through a synthetic resin film A flash panel in which a decorative board with a backing paper bonded to the surface is bonded via a core material, and decorative paper is bonded to one side of a medium-density fiberboard via a synthetic resin film and the other side is through a synthetic resin film. A flash panel in which a decorative plate to which a backing paper is adhered is attached via a core material is a constituent requirement.

MDF2 includes a phenol type and a melamine type, and it is preferable to use a melamine type having excellent water resistance. For the decorative board 1, a thin object having a thickness of about 2 to 5 mm is used. Weight is 23 for decorative paper 4 and backing paper 5
This refers to thin paper, titanium paper, kraft paper, or the like of about 30 g / m 2, and the decorative paper 4 for the surface is subjected to makeup as necessary on the surface by printing or the like. The synthetic resin film 3 refers to polyethylene, polypropylene, polyvinylidene, or the like, and has a thickness of about 20 to 60 μm.

[0007] The decorative paper 4 and the backing paper 5 are formed through the synthetic resin film 3 with an adhesive such as aqueous vinyl urethane.
Glue to DF2. This decorative board 1 can be used as a face material, but when used for a door panel, it is bonded to a flash panel via a core material 6 made of a wood material or the like.

[0008]

EXAMPLE A weight of 23 mm was placed on the surface of a 2.5 mm thick MDF.
g / m2 tissue paper with a wood grain pattern printed thereon, and a decorative paper bonded to the surface of a 30 μm thick polypropylene film via an aqueous vinyl urethane adhesive.
A backing paper was adhered to the back surface of a kraft paper having a weight of 23 g / m 2 via a polypropylene film having a thickness of 30 μm via a water-based vinyl urethane adhesive to obtain a decorative board.

Subsequently, the LVL is formed in a square shape to form a core material, and the core material is framed to form a frame body. The decorative sheet is coated on both sides with an aqueous vinyl urethane adhesive. Were bonded to each other with a void side formed inside to obtain a flash panel having a hollow structure.

[0010]

According to the present invention, moisture absorption and desorption is blocked by the synthetic resin film, and warpage and distortion can be prevented as much as possible.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a flash panel according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Decorative board 2 Medium specific gravity fiber board 3 Synthetic resin film 4 Decorative paper 5 Backing paper 6 Core material

Claims (4)

[Claims] 1. A decorative board in which decorative paper is adhered to one surface of a medium specific gravity fiber board via a synthetic resin film and a backing paper is adhered to the other surface. 2. A decorative board in which a decorative paper is bonded to one surface of a medium specific gravity fiber board via a synthetic resin film and a backing paper is bonded to the other surface via a synthetic resin film. 3. A flash panel in which a decorative board in which decorative paper is adhered to one surface of a medium-density fiberboard via a synthetic resin film and a backing paper is adhered to the other surface via a core material. 4. A flash in which a decorative board in which decorative paper is bonded to one side of a medium specific gravity fiber board via a synthetic resin film and a backing paper is bonded to the other side via a synthetic resin film is bonded through a core material. panel.