JPH09207292A - Wooden style plate material and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plate material in which natural wooden style is created by simplifying the manufacture. SOLUTION: The wooden style plate material comprises a base plate material 10 made of polyvinyl chloride resin, a film layer 20 made of soft polyvinyl chloride resin fixed to the upper surface of the material 10, and a transparent hard coating layer 30 for covering and protecting the upper surface of the layer 20. The soft polyvinyl chloride resin for forming the layer 20 is formed by mixing at least 5wt.% of cellulose powder formed by fixing hard fine powder having smaller diameter than the fine powder on the surface of the fine powder of cellulose material and pigment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden board and a method for manufacturing the wooden board, and more particularly to a wooden board whose surface pattern is wood and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, a plate material having a wood tone and a wood grain pattern on its surface has been manufactured as follows. That is,
As shown in FIG. 3, a polyvinyl chloride base plate material 50.
An intermediate layer 60 made of soft polyvinyl chloride is provided on the upper surface of the
The transparent film 70 is provided on the intermediate layer 60, and the hard coat 80 is further applied to the upper surface of the transparent film 70.
By printing the wood grain pattern 71 on the surface of the side, the wood grain pattern was produced.

In the printing of the wood grain pattern, usually, the wood grain pattern is produced by applying a plurality of types of printing inks matching the desired special color of the tree.

[0004]

However, when a wood grain pattern is printed, an unnatural pattern such as a repeating pattern is produced. The problem to be solved by the present invention is to provide a plate material that brings out a natural wood tone.

An object of the present invention is to provide a wood tone board material which produces a natural wood tone and simplifies the manufacturing process. An object of the invention of claim 2 is to provide a patterned wood tone board material that is closer to a natural wood grain pattern. Further, an object of the invention described in claim 3 is to provide a wood tone board material that simplifies the manufacturing process by accelerating the printing process.

It is another object of the present invention to provide a method for producing a wood tone board material which produces a natural wood tone and simplifies the production process.

[0007]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. The wood tone board material according to claim 1 is a base board material (10) made of polyvinyl chloride resin, a film layer (20) made of soft polyvinyl chloride resin fixed on the upper surface of the base board material (10), Film layer (20)
A plate material formed with a transparent hard coat layer (30) that covers and protects the upper surface of the soft polyvinyl chloride resin that forms the film layer (20), and includes a fine powder of a cellulosic material. It is characterized in that at least 5% by weight or more of a cellulose powder prepared by fixing a fine powder having a diameter smaller than that of the fine powder and being hard on the surface is mixed with a pigment.

The cellulose powder to be mixed with the film layer (20) is a powder prepared by driving a fine powder of an inorganic material into a fine powder of a cellulosic material, for example, wood powder such as sawdust. Here, the "inorganic material" is a metal material such as titanium oxide, ferrite, aluminum, nickel, silver, calcium carbonate, or a non-metal material such as ceramic.

As the film layer (20), for example, soft vinyl chloride resin is used. As the coat layer (30), for example, urethane resin, acrylic resin or the like is used.
The reason why the cellulose powder to be mixed with the film layer (20) is "at least 5% by weight or more" is that it does not give a woody tone below that. It should be noted that the upper limit of the amount of the cellulose powder to be mixed may be within the range in which the film layer can be formed, but it does not exceed 50% by weight. This is because the resin and the cellulose powder are not mixed with each other and the film layer cannot be formed.

Since the cellulose powder and the pigment are mixed in the film layer (20), the texture of real wood is produced, and the film layer (20) is protected by the transparent coat layer (30). . The transparent film layer printed with a wood pattern, which was conventionally required between the film layer and the coat layer, is unnecessary, and the manufacturing process can be simplified.

According to a second aspect of the present invention, there is provided a wood layer material which is a technical limitation of the wood material of the first aspect.
The pigment mixed in (20) is characterized by being dispersed non-uniformly throughout the film layer (20). Pigment film layer (20)
If it is dispersed non-uniformly throughout the mixture, the degree of mixing with the cellulose powder becomes non-uniform and a pattern close to a natural wood grain pattern is created.

According to a third aspect of the present invention, the wood board material is a technical limitation of the wood board material according to the first or second aspect, wherein a wood grain pattern is printed on the film layer (20). To do. Printing is usually overprinting, but film layer
Since the cellulose powder contained in (20) easily penetrates the printing paint, it can be dried quickly and the production can be accelerated.

Further, since the film layer (20) contains cellulose powder, the coefficient of linear expansion is smaller than that of the film layer formed of, for example, a soft vinyl chloride resin. Is less likely to occur than in the past and yield is improved. The method for manufacturing a wood-finished board material according to claim 4 is a base board material (10) made of polyvinyl chloride resin.
And a film layer (20) made of a soft polyvinyl chloride resin fixed on the upper surface of the base plate material (10), and a transparent hard coat layer (3) for covering and protecting the upper surface of the film layer (20).
0) and a method for producing a plate material, which comprises a film layer (20)
Is at least 5 parts of cellulose powder prepared by fixing fine powder having a smaller diameter and harder than the fine powder on the surface of the fine powder of the cellulosic material to the melted soft polyvinyl chloride resin.
The coating layer (30) is characterized in that it is formed by calendering by mixing at least wt% and further by mixing a pigment, and the coat layer (30) is formed by extrusion molding (for example, T stand extrusion).

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to embodiments and drawings. The drawings used here are FIG. 1 and FIG. FIG. 1 is a conceptual diagram showing an embodiment of the present invention. FIG. 2 is a perspective view showing one manufacturing process of the embodiment of the present invention.

First, the configuration of this embodiment will be described. A base plate material 10 made of polyvinyl chloride resin,
A film layer 20 made of a soft polyvinyl chloride resin fixed to the upper surface of the base plate material 10, and the film layer 2
0 is a plate material comprising a transparent hard coat layer 30 that covers and protects the upper surface of 0, and the soft polyvinyl chloride resin that forms the film layer 20 includes a fine powder of a cellulosic material on the surface thereof. Is formed by mixing at least 5% by weight or more of a cellulose powder prepared by fixing fine powder having a small diameter and hard, and a pigment.

The base plate material 10 is black hard PVC (polyvinyl chloride), and its thickness is 1.2 millimeters. The film layer 20 is a transparent soft vinyl chloride resin and has a thickness of 0.2 to 0.4 mm. The coat layer 30 is a transparent urethane resin and has a thickness of about 50 μm. Coat layer 30
Can also be formed of acrylic resin.

The film layer 20 is formed by calendering, as shown in FIG. Here, in order to disperse the pigment mixed in the film layer 20 non-uniformly throughout the film layer 20, after melting the PVC pellets containing 5% by weight or more of the above-mentioned cellulose powder and mixing the pigment therein, It will be calendered. When the pigment is non-uniformly dispersed throughout the film layer 20, the degree of mixing with the cellulose powder becomes non-uniform, and a pattern close to a natural wood grain pattern is produced.

The cellulose powder is a powder prepared by driving fine powder of an inorganic material into fine powder of a cellulosic material obtained by finely crushing sawdust. Here, "inorganic material" means titanium oxide, ferrite, aluminum,
Metallic materials such as nickel and silver or non-metallic materials such as ceramics may be mentioned, but calcium carbonate is used here.

The coat layer 30 is formed by T stand extrusion. The surface of the coat layer 30 is subjected to so-called wiping, which is a finishing operation such as polishing. Since the cellulose powder and the non-uniformly dispersed pigment are mixed in the film layer 20, a pattern close to a natural wood grain pattern and a real wood texture are produced, and the film layer 20 becomes a transparent coat layer 30. It is protected.

The transparent film layer printed with a wood pattern, which is conventionally required between the film layer and the coat layer, is unnecessary, and the manufacturing process can be simplified. Next, variations of the above-described embodiment will be described. It is also possible to print a grain pattern on the film layer 20.
In that case, the printing is performed by overprinting, but the film layer 2
Since the printing powder easily penetrates into the cellulose powder contained in 0, the drying is quick and the production can be accelerated.

Further, since the film layer 20 contains the cellulose powder, the coefficient of linear expansion is smaller than that of the film layer formed of only the soft polyvinyl chloride resin, so that the printing deviation due to the overcoat printing is more than that of the conventional one. It is hard to get up and yield is improved.

[0022]

According to the first aspect of the present invention, it is possible to provide a wood tone board material that produces a natural wood tone and simplifies the manufacturing process. According to the second aspect of the present invention,
Furthermore, it was possible to provide a patterned wood board material having a natural grain pattern.

Further, according to the third aspect of the invention, it is possible to provide a wood tone board material which simplifies the manufacturing process by completing the printing process quickly. Further, according to the invention of claim 4, it is possible to provide a method for producing a wood tone board material which produces a natural wood tone and simplifies the production process.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

FIG. 2 is a perspective view showing one manufacturing process of the embodiment of the present invention.

FIG. 3 is a conceptual diagram showing a conventional technique.

[Explanation of symbols]

10 base plate material 20 transparent film 30 coat layer 50 base plate material 60 intermediate layer 70 transparent film 71 wood grain pattern 80 hard coat

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location C08K 3/26 KGL C08K 3/26 KGL // C08K 9/02 KJE C08K 9/02 KJE C08L 27 / 06 LEL C08L 27/06 LEL B29K 27:06 75:00

Claims (4)

[Claims] 1. A base plate material made of polyvinyl chloride resin, a film layer made of soft polyvinyl chloride resin fixed to the upper surface of the base plate material, and a transparent hard coat for covering and protecting the upper surface of the film layer. A plate material formed by including a layer, the soft polyvinyl chloride resin forming a film layer, was prepared by fixing a fine powder having a smaller diameter and harder than the fine powder on the surface of the fine powder of the cellulosic material. A wood tone board material formed by mixing at least 5% by weight of cellulose powder and a pigment. 2. The pigment mixed in the film layer is non-uniformly dispersed throughout the film layer.
The wooden board material described. 3. The wood tone board material according to claim 1 or 2, wherein a wood grain pattern is printed on the film layer. 4. A base plate material made of polyvinyl chloride resin, a film layer made of soft polyvinyl chloride resin fixed on the upper surface of the base plate material, and a transparent hard coat for covering and protecting the upper surface of the film layer. A method for producing a plate material comprising a layer, wherein a film layer is prepared by melting a soft polyvinyl chloride resin, and fixing a fine powder having a smaller diameter and harder than the fine powder on the surface of the fine powder of the cellulosic material. A method for producing a wood tone board material, characterized in that at least 5% by weight or more of cellulose powder is mixed, and a pigment is further mixed to form by calender molding, and the coat layer is formed by extrusion molding.