JP2016027243A - Floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a user-friendly floor material.SOLUTION: A floor material F includes: a first layer 1 which is formed of a veneer, printing paper or printed resin sheet; a second layer 2 which is formed of an impregnated paper impregnated or coated with a high hardness resin or a glass fiber sheet being bonded to the rear face of the first layer 1; a third layer 3 which is formed of a flexible sheet bonded to the rear face of the second layer 2; and a fourth layer 4 formed of a nonwoven fabric, resin-impregnated paper or glass fiber being bonded to the rear face of the third layer 3.SELECTED DRAWING: Figure 1

Description

    The present invention relates to a flooring, and more particularly to a flooring that is easy to use.

Conventionally, solid flooring of natural wood, composite flooring with natural wood veneer stuck on the surface of plywood or MDF (medium density fiberboard), etc., warpage and expansion / contraction of the flooring due to humidity change, floor materials Since the surface of the flooring is not smooth due to a large change in the gap between the floor and the floor, the surface of the floor is provided with male and female hoods in advance. Even if expansion and contraction occurs, a method of maintaining the gap and smoothness is taken.
In the case of a direct-attached type floor material that is directly laid on the floor base with an adhesive or the like, a gap is formed between the floor material and the floor base due to the unevenness (unevenness) of the floor base so that adhesion failure or deformation does not occur. In addition, a cushioning sheet such as foamed polyethylene is pasted on the back surface of the flooring material in advance, but the adjacent flooring materials are still connected by a sash assembly.

Japanese Patent Laid-Open No. 9-144282 See FIG.

However, warping and expansion and contraction can be suppressed by using a sash assembly, but at the same time, the construction technique itself requires skill, and it is difficult to rely on professional craftsmen.
In addition, even if it is desired to replace only a part of the damaged or damaged flooring, it is difficult because the neighbors are connected with each other.

An object of the present invention is to provide a floor material and a floor surface that are easy to use and have been made in consideration of the above problems.

    The flooring material of claim 1 is impregnated paper impregnated or coated with a first layer formed of a veneer or printing paper or a printed resin sheet, and a high-hardness resin bonded to the back surface of the first layer, or A second layer formed of a glass fiber sheet, a third layer formed of a soft sheet bonded to the back surface of the second layer, and a nonwoven fabric bonded to the back surface of the third layer, or And a fourth layer formed of resin-impregnated paper or glass fiber.

    According to the flooring material of claim 1, impregnated paper or glass fiber impregnated or coated with a high-hardness resin of the second layer is subjected to expansion and contraction associated with temperature and humidity changes (particularly drying) of the first layer of the veneer. The sheet is restricted by the fourth layer nonwoven fabric, the resin-impregnated paper, or the glass fiber, respectively, due to the heat of the third layer soft sheet. ), It is possible to suppress warping and expansion and contraction without using a hood assembly as in the prior art, and to obtain a floor material F that is easy to use.

FIG. 1 is a schematic cross-sectional view of a flooring material according to an embodiment of the present invention. FIG. 2 is a schematic exploded perspective view of the flooring of FIG. FIG. 3 is a schematic cross-sectional view showing a state where the flooring of FIG. 1 is constructed on the construction surface.

A flooring and a floor according to an embodiment of the present invention will be described with reference to the drawings.
Example 1
F shown in FIGS. 1 to 3 is a floor material, and the floor material F is formed of four layers. Reference numeral 1 denotes a first layer, and the first layer 1 is formed of a protruding plate.
The thickness of the first layer 1 is about 0.2 mm to about 3 mm.

Reference numeral 2 denotes a second layer, and the second layer 2 is formed of a medium density fiberboard bonded to the back surface of the first layer 1 (for example, adhesive, heat fusion, etc.).
The above-mentioned medium density fiberboard is a type of molded board (fiberboard) made of wood fiber. Of the fiberboard (fiberboard) made from plant fiber such as wood and made by dry process, the density is 0.35-0.80. This refers to g / cm3.
The thickness of the second layer 2 is about 1 mm to about 3 mm.
If the medium density fiberboard of the second layer 2 is a half cut medium density fiber board, the floor material F can be thinned by the thickness of the half cut medium density fiber board, and the floor material F can be easily cut, and construction can be performed accordingly. It becomes easy.

Reference numeral 3 denotes a third layer, and the third layer 3 is formed of a soft sheet bonded to the back surface of the second layer 2 (for example, adhesive, heat fusion, etc.).
The soft sheet preferably has a rubber hardness and Shore A of about 10 to 100, more preferably about 20 to 70, such as foamed polyethylene, soft vinyl chloride, various elastomers, soft urethane resin, and the like. It is. In any case, when a filler such as calcium carbonate, talc or wood powder is added, the hardness and the expansion / contraction rate can be adjusted. In addition, recycled materials made by crushing and recycling used wallpaper, carpet tiles, agricultural vinyl films, etc. can be used, resulting in a very ecological product.
The thickness of the third layer 3 is about 1 mm to about 3 mm.

Reference numeral 4 denotes a fourth layer, and the fourth layer 4 is formed of a resin-impregnated paper bonded to the back surface of the third layer 3 (for example, adhesive, heat fusion, etc.).
The resin-impregnated paper is an impregnated paper impregnated or coated with a high-hardness resin resin (for example, acrylic resin, dup resin, etc.), and has a Gurley stiffness of 50 to 1900 (mg) or a pencil hardness of 4H or more in thickness of 0.1. It is impregnated paper having a weight of about 0.3 mm and a basis weight of about 60 to 200 g / m2. 4th
The thickness of the layer 4 is about 0.1 mm to about 0.6 mm.

The first layer 1 of Example 1 is formed of a veneer, and the viscosities of the first layer 1 are greatly expanded and contracted by changes in humidity (particularly drying). In addition, it may be a printing paper or a printing resin sheet that is also greatly expanded and contracted by temperature and humidity changes.
Further, the fourth layer 4 of Example 1 is formed of resin-impregnated paper, but glass fiber or non-woven fabric may be used instead of the resin-impregnated paper of the fourth layer 4. The glass fiber is, for example, a woven or non-woven fabric made of glass fiber, and has a basis weight of about 30 to 100 g / m 2 and a thickness of 0.1 to 0.6 mm.
In order to improve the adhesive strength, it is desirable to impregnate the adhesive. The nonwoven fabric is, for example, a nonwoven fabric such as polyester, vinylon, glass or the like, and has a basis weight of 10 to 80 g / m 2 and the thickness of the fourth layer 4 is about 0.1 mm to about 0.6 mm.
Moreover, you may use the medium density fiber board which has not half-cut the half-cut medium density fiber board of the 2nd layer 2. FIG.

Therefore, according to the flooring F described above, the half layer medium density fiberboard of the second layer 2 expands and contracts due to the temperature and humidity change (particularly drying) of the first layer 1 protruding plate or printing paper or printing resin sheet. , Third layer 3
The expansion and contraction of the soft sheet with heat is regulated by the resin impregnated paper of the fourth layer 4 or the glass fiber or the nonwoven fabric, respectively, and corresponds to the unevenness (unevenness) of the construction surface 10 by the soft sheet of the third layer 3. Therefore, it is possible to suppress warping and expansion and contraction without using a sash assembly as in the prior art, and to obtain a floor material F that is easy to use. The floor material can be made thin, and the part can be easily cut and the construction is easy.

(Example 2)
The first layer 1 is formed of a protruding plate as in the first embodiment.
The thickness of the first layer 1 is about 0.2 mm to about 3 mm.

2 is a second layer, and the second layer 2 is an impregnated paper or glass fiber impregnated or coated with a high-hardness resin bonded to the back surface of the first layer 1 (for example, adhesive, heat fusion, etc.) The sheet is formed.
The impregnated paper is impregnated paper impregnated or coated with a high-hardness resin resin (for example, acrylic resin, dup resin, etc.), and has a Gurley stiffness of 50 to 1900 (mg), or a pencil hardness of 4H or more and a thickness of 0.1 or more. It is an impregnated paper having a diameter of 0.3 mm and a basis weight of about 60 to 200 g / m2.
The glass fiber sheet is, for example, a woven or non-woven fabric made of glass fiber, and has a basis weight of about 30 to 100 g / m 2 and a thickness of about 0.1 to 0.6 mm. The impregnated one is desirable.

3 is a third layer, and the third layer 3 is formed of a soft sheet bonded to the back surface of the second layer 2 (for example, adhesive, heat fusion, etc.) as in the first embodiment. .
The soft sheet preferably has a rubber hardness and Shore A of about 10 to 100, more preferably about 20 to 70, such as foamed polyethylene, soft vinyl chloride, various elastomers, soft urethane resin, and the like. It is. In any case, when a filler such as calcium carbonate, talc, or charcoal is added, hardness and expansion / contraction rate can be adjusted. In addition, recycled materials made by crushing and recycling used wallpaper, carpet tiles, agricultural vinyl films, etc. can be used, resulting in a very ecological product.
The thickness of the third layer 3 is about 1 mm to about 3 mm.

Reference numeral 4 denotes a fourth layer, and the fourth layer 4 is formed of a nonwoven fabric bonded to the back surface of the third layer 3 (for example, adhesive, heat fusion, etc.).
This non-woven fabric is, for example, a non-woven fabric such as polyester, vinylon, glass, etc., with a basis weight of 10 to 80 g / m 2 and a thickness of the fourth layer 4 of about 0.1 mm to about 0.6 mm.

Note that the first layer 1 of Example 2 is formed of a veneer, and the viscosities of the first layer 1 are greatly expanded and contracted by changes in humidity (particularly drying), but instead of the veneer of the first layer 1 In addition, it may be a printing paper or a printing resin sheet that is also greatly expanded and contracted by temperature and humidity changes.
Moreover, although the 4th layer 4 of Example 2 is formed with the nonwoven fabric, instead of the nonwoven fabric of the 4th layer 4, resin impregnated paper or glass fiber may be sufficient. The resin-impregnated paper is, for example, a high-hardness resin resin (
For example, an impregnated paper impregnated or coated with an acrylic resin, a dup resin, etc., and a Gurley stiffness of 50 to 1900 (mg), pencil hardness, thickness of 4H or more 0.1 to 0.3 mm, basis weight 60 to 200 g / M2 impregnated paper. The glass fiber is, for example, a woven or non-woven fabric made of glass fiber, having a basis weight of about 30 to 100 g / m 2 and a thickness of about 0.1 to 0.6 mm, and impregnated with an adhesive for improving the adhesive strength. desirable. In the case of a non-woven fabric, for example, a non-woven fabric such as polyester, vinylon, glass or the like, the basis weight is 10 to 80 g / m2, and the thickness of the fourth layer 4 is about 0.1 mm to about 0.6 mm. .

Therefore, according to the flooring F described above, the high-strength resin of the second layer 2 is impregnated with the high-strength resin of the second layer 2 or the expansion and contraction associated with the temperature / humidity change (particularly drying) of the first layer 1 or the printing paper or printing resin sheet The coated impregnated paper or glass fiber sheet regulates the expansion and contraction of the soft sheet of the third layer 3 with heat, and the fourth layer 4 nonwoven fabric or resin impregnated paper or glass fiber regulates the third layer 3 respectively. 3 can cope with the unevenness (unevenness) of the construction surface 10, so that it is possible to suppress warping and expansion and contraction without using a sash assembly as in the past, and a floor that is easy to use Material F can be obtained.

In addition, the floor material F of Examples 1 and 2 described above has a total thickness of 2 to 2 because it is not necessary to provide a sash set.
Since it can be suppressed to about 6 mm, it is possible to construct an old flooring material without removing old existing flooring material, and it is optimal as a barrier-free floor for elderly people.

F Floor material 1 1st layer 2 2nd layer 3 3rd layer 4 4th layer

Claims (1)

A first layer formed of a veneer or printed paper or printed resin sheet;
A second layer formed of impregnated paper impregnated or coated with a high-hardness resin bonded to the back surface of the first layer, or a sheet of glass fiber;
A third layer formed of a soft sheet bonded to the back surface of the second layer;
A fourth layer formed of a nonwoven fabric or resin-impregnated paper or glass fiber bonded to the back surface of the third layer;
A flooring characterized by comprising.

Images