JPH09144280A - Cork tile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive to bring a contact feeling available when touched with a human hand to that of a cork and enhance sound insulating properties and soundproofing properties by mixing crushed cork chips with elastic synthetic resin or rubber and molding the mixture in the form of a board. SOLUTION: A raw material of cork is prepared and crushed like chips, thereby producing cork chips 11. Vinyl chloride resin 12, which is thermoplastic resin, is mixed with the cork chips 11. The vinyl chloride resin 12 is like a liquid holding a definite temperature. The mixture is placed into a form and cooled, thereby forming a cork tile 10. When the vinyl chloride resin 12 is arranged to be colorless, the patterns of the contained cork chips are visible, thereby enhancing the outward appearance. Wood powder is placed in the vinyl chloride resin 12 and is preliminarily mixed and then cork chips 11 are placed thereinto, thereby producing a kneaded substance. This construction makes it possible to manufacture the cork tiles 10 having a better wooden feeling closely related to the cork.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cork tiles used as wall materials or floor materials for buildings.

[0002]

2. Description of the Related Art Cork tiles are widely used as building wall materials or floor materials because they have heat insulating properties and sound absorbing properties.
A conventional cork tile is made of a solid material obtained by adding a thermosetting adhesive to a crushed cork chip and molding it into a plate shape.

[0003]

However, since the conventional cork tile uses a thermosetting adhesive, it does not have a good cushioning property and lacks elasticity in consideration of an injury when a person falls down. Moreover, there is a problem that the price is very high. The present invention has been made in view of the above circumstances, and an object thereof is to provide a cork tile having the same appearance as a conventional cork tile and further improved in elasticity and feel.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The described cork tile is formed into a plate shape by mixing crushed cork chips with an elastic synthetic resin or rubber. The cork tile according to claim 2 is the cork tile according to claim 1, in which a coloring agent having a cork color or another color is added to the synthetic resin or rubber. And
The cork tile according to claim 3 is the cork tile according to claim 2, wherein wood powder is used as the coloring agent. The synthetic resin having elasticity is, for example, vinyl chloride, but other resin may be used as long as it has appropriate elasticity, and the elastic modulus is 400 kg / mm ² (more preferably 100 kg / mm ² ). The following thermoplastic resins are preferably used. The rubber may be either natural rubber or synthetic rubber, but it is preferable to use inexpensive SBR (styrene butadiene rubber) or the like, and it is preferable to color it like the synthetic resin.

[0005]

In the cork tile according to the first to third aspects, the synthetic resin or rubber having elasticity is mixed with the cork chip and molded into a plate shape. Therefore, the cork chip itself has sufficient elasticity, and since the synthetic resin or rubber also has elasticity, the molded plate-shaped object also has sufficient elasticity. If a synthetic resin material is selected (for example, vinyl chloride resin), it can be manufactured at low cost. The cork tile may be used as a base as it is, but can be laminated and adhered to a substrate such as plywood to be used as a floor board material or a wall board material. Especially,
In the cork tile according to the second aspect of the present invention, since the coloring agent of cork color or other colors is mixed in the synthetic resin or rubber, the cork tile of any color can be manufactured. And
In the cork tile according to the third aspect, since the wood powder is used as the coloring agent, the resin becomes inconspicuous, and further, the wood powder and the resin are mixed to give a feeling closer to cork.

[0006]

Therefore, since the cork tiles according to claims 1 to 3 use the elastic synthetic resin or rubber for the base material, they are elastic cork tiles as compared with the conventional cork tiles. Become. Therefore, when touched by a person, the touch feeling becomes closer to that of cork, the degree of injury is reduced even if the person falls down, and the sound insulation and sound insulation are also improved. Especially,
Since the cork tile according to the second aspect can be colored in various colors, decorativeness is improved. When the coil color is used, the resin does not need to be noticeable. In the cork tile according to the third aspect, since the wood powder is added, the resin or rubber portion becomes inconspicuous, and a cork tile closer to cork can be provided.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. FIG. 1 is a sectional view of a cork tile according to an embodiment of the present invention.

First, a raw material for cork is prepared, crushed into chips to form cork chips, and a vinyl chloride resin, which is an example of a thermoplastic resin, is mixed therein. This vinyl chloride resin is kept in a liquid state at a constant temperature. The weight of the cork chip and the vinyl chloride resin is preferably about 1: 0.5 to 1.0. Then, this mixture is put in a mold and cooled to obtain a cork tile 10 as shown in FIG. In the figure, 11 is a cork chip and 12 is a vinyl chloride resin. Here, assuming that the vinyl chloride resin 12 is colorless, the cork chip 1 contained therein
The pattern of 1 can be seen and the appearance is improved.

Although it is possible to color the vinyl chloride resin 12 here, wood powder is put in the vinyl chloride resin and mixed beforehand, and then cork chips are put in and mixed, By using the kneaded product, it is possible to produce cork tiles having a more woody texture and closer to cork.

Rubber may be used in place of the vinyl chloride resin, and in this case, further elasticity is imparted,
Soundproofing and sound insulation are improved. As the rubber, it is preferable to use SBR which is relatively inexpensive, but the present invention is also applicable to other artificial rubber or natural rubber.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a cork tile according to an embodiment of the present invention.

[Explanation of symbols] 10 cork tiles 11 cork chips 12 vinyl chloride resin

Claims (3)

[Claims] 1. A cork tile comprising a crushed cork chip mixed with an elastic synthetic resin or rubber and molded into a plate shape. 2. The cork tile according to claim 1, wherein a colorant having a cork color or another color is added to the synthetic resin or rubber. 3. The cork tile according to claim 2, wherein wood powder is used as the coloring agent.