JP2976866B2 - Fiber floor tile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a fiber floor tile used as a floor covering for a house or the like.

[0002]

2. Description of the Related Art Conventionally, fiber floor tiles have advantages such as easy laying and construction, easy carrying, easy partial replacement, and excellent design by combining colors and shapes. Until now, it has been widely used in the non-residential field, but in the residential field, it is not used because the backing layer is hard and has no habitability due to the structure of the product, and long fiber flooring is often used exclusively. . However, when the long fiber flooring is used in the living field, even if the dirt or abrasion is partial, it is not possible to replace only that part, and the entire surface is replaced, which is uneconomical. In addition, when replacing the furniture, all the furniture and the like placed on the long fiber flooring must be moved, which is very troublesome. Therefore, for living of fiber floor tiles having the above-mentioned advantages, a resin foam or a layer in which a fiber layer is laminated on a backing layer has been developed and used. Problems such as peeling of the fiber surface layer due to a long-term load, elastic destruction, warpage at the abutting portion due to elongation, poor dimensional stability, and elongation or shrinkage due to temperature occur due to low elastic strength.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems and is excellent in stationary stability and durability required for floor coverings of houses and the like, and furthermore, cushioning, walking feeling, heat insulation and sound insulation. It is an object to provide a fiber floor tile excellent in properties and the like.

[0004]

The object of the present invention is to provide a fiber surface layer (1) composed of a fibrous material, a polymer resin backing layer (2), and a woven or nonwoven fabric made of inorganic or organic fibers. Backing layer (3) made of organic fiber
In the layer, the melting point is 150 to 1 with respect to 100 parts by weight of the organic fibers.
Evenly mix 20-50 parts by weight of the heat-fusible fiber at 70 ° C
Heat-bonded with a thickness of 3 mm or more and a density of 0.05 to
A fibrous backing layer (4) containing a fused fiber, which is a fibrous nonwoven fabric of 0.08 g / cm ³ and each fiber is fused and reinforced by a fused fiber, and a backing layer (5) of a polymer resin are sequentially laminated. Solved by fiber floor tiles that have been. Hereinafter, the present invention will be described.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The fiber surface layer (1) of the fiber floor tile of the present invention comprises a base fabric layer (7) and a pile layer (6), and is conventionally used for tile carpets, such as nylon, acrylic and polyester. , Synthetic fibers such as polypropylene or natural fibers such as wool are cut into a woven or non-woven base fabric layer of polyester or synthetic fibers such as polypropylene,
A layer in which a pile layer having a loop shape or a combination of a cut and a loop is formed is used. In particular, any material can be used as long as it is sufficiently durable regardless of the density of the pile layer. The fiber surface layer (1) imparts design, heat retention, sound absorption, and the like to the fiber floor tile.

[0006] The polymer resin backing layers (2) and (5) of the fiber floor tile of the present invention are made of high-polymer resin such as ethylene resin, ethylene vinyl acetate resin, polyvinyl chloride resin, amorphous olefin polymer resin and asphalt resin. Although a molecular resin can be used, a vinyl chloride resin and an amorphous olefin polymer are particularly preferable in terms of performance, ease of use, cost, and the like. When these resins are used for the polymer resin backing layer (2), they have an appropriate rigidity and softness, so they are received by the entire resin surface against the load,
Prevents partial dents and warpage due to point loads. Also,
Since it has sufficient adhesive strength, peeling of the fiber surface layer is prevented. Further, when used for the polymer backing layer (5), it has an effect of standing firmly on the floor base due to moderate rigidity and sufficiently withstanding the lateral displacement load caused by walking or the like.

The woven or non-woven fabric used for the reinforcing material backing layer (3) of the fiber floor tile of the present invention has properties such as preventing elongation against a load, elongation and shrinkage against a temperature change. Can be used. In particular, in the case of a glass fiber woven fabric, since it can be embedded in the polymer resin backing layer (2) through the mesh, the manufacturing process can be simplified,
In addition, a reinforcing effect that is balanced vertically and horizontally can be obtained. In the case of a nonwoven fabric, the basis weight is preferably 30 g / m ² or more from the viewpoint of dimensional stability, but it is important to sufficiently impregnate the polymer resin backing layer (2).

The fibrous backing layer (4) containing the fusible fiber of the fiber floor tile of the present invention comprises a heat-fusible fiber having a melting point of 150 to 170 ° C. in an organic fiber layer of natural, synthetic, semi-synthetic or the like. 20 to 50 parts by weight are uniformly mixed with 100 parts by weight of the fiber, and 20 to 5 parts on the upper surface, the lower surface, or both upper and lower surfaces of this layer.
This is a non-woven fabric in which 0 parts by weight of a polyester spun-bonded non-woven fabric is overlapped, a web layer is formed at the same time by a needle punching machine, and the organic fiber layers are melt-bonded and bonded by heating. In a needle-punched nonwoven fabric in which each fiber is merely mechanically entangled, inter-fiber bonds are cut by shear stress, and inter-fiber separation or the like is generated by a tensile force at the time of replacement. Further, those in which each fiber is bonded with a binder such as a synthetic resin latex have problems such as lack of flexibility and cushioning property, and destruction of the resin due to a load to cause separation between fibers. On the other hand, the fused fiber-containing fibrous backing layer (4) of the present invention is mechanically strong because the fibers are bonded to each other by fusion bonding of homogeneous fibers having a low melting point, and has flexibility and cushioning properties. Excellent characteristics are obtained. The thickness of the fusible fibers containing fibrous backing layer (4) has a density 0.05~0.08g / cm ³ at 3mm or more
Cushioning, walking feeling, and sound insulation in the residential area
It is more appropriate.

In the fiber floor tile of the present invention, a polymer resin backing layer (5) is applied to a thickness of 1 to 2 mm on a Teflon coating belt with a doctor knife, and a nonwoven fabric layer serving as a cushion layer is fused thereon. A fiber-containing fibrous backing layer (4) is overlaid, a polymer resin backing layer (2) is applied thereon with a doctor knife to a thickness of 2 to 3 mm, and a reinforcing material backing layer (3) is laminated thereon. After laminating the base layer (7) of the fiber surface layer (1) on the lower surface thereof and pressing the entire surface of the layer, a polymer resin backing layer (2) is formed on the fiber surface (1). The base fabric layer (7) is sufficiently impregnated, and then subjected to solidification processing of the polymer resin backing layer (2) and the polymer backing layer (5), and then cut into tiles to obtain the fiber floor tile of the present invention. obtain. When the resin used in the polymer resin backing layer (2) or (5) is a vinyl chloride resin, the solidification treatment is performed by heating to 180 to 220 ° C. and then cooling. In the case of an amorphous olefin polymer composition,
Since it is applied in a state of being heated and melted at 80 to 200 ° C., its solidification processing is only cooling.

The fiber floor tiles of the present invention obtained in this way exhibit the characteristics which have not existed in the past, especially when applied to a load, there is no local dent on the entire surface, cushioning property and walking feeling. It excels in performance required for living environment such as heat insulation and sound insulation.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The fiber floor tile of the present invention has the structure shown schematically in FIG. Hereinafter, description will be made based on embodiments. [Example 1] 100 parts by weight of a vinyl chloride resin (P-410D manufactured by Mitsubishi Chemical Corporation) on a Teflon coated belt,
100 parts by weight of plasticizer (DOP), stabilizer (O Asahi Denka Co., Ltd.)
-110) 1 part by weight, pigment (TW-2 manufactured by Hikitsu Bix Co., Ltd.)
7) 1 part by weight, inorganic filler (O-260 manufactured by Asahi Minami Co., Ltd.)
400 parts by weight of a paste-like kneaded material (viscosity 25,
000 cp B-type viscometer) with a doctor knife to a thickness of 2 mm to form a polymer resin backing layer (5), on which a polyester nonwoven fabric containing 30% by weight of heat-fusible fibers (170 ° C. type) (5 mm thick) ) Are laminated to form a fibrous backing layer (4) containing a fused fiber, on which 100 parts by weight of a vinyl chloride resin (XPCH-82 manufactured by Kaneka Corporation), 90 parts by weight of a plasticizer (DOP), and a stabilizer ( Asahi Denka O-11
0) 1 part by weight, pigment (TW-27 manufactured by Hikitsu BIX Co., Ltd.)
1 part by weight, inorganic filler (O-260 manufactured by Asahi Minami Co., Ltd.) 300
Parts by weight of a paste-like kneaded material (viscosity 15,000)
cp B type viscometer) is applied with a doctor knife to a thickness of 2 mm to form a polymer resin backing layer (2), on which a glass fiber mesh (6 vertical / in, 6 horizontal / in) is laminated. And then 100% acrylic, Hi-Lo loop,
Pile count 1 / 4Nm, pile density 1/10 gauge, 1
3 stitches, pile length 2.5 / 6.5 mm, pile weight 600 g / m ² pile layer (6) and polyester spunbond base cloth layer (7) base cloth layer (1) 180-220 after laminating 7)
C., heated for 5 to 7 minutes, then cooled, subjected to solidification processing, and cut to obtain a fiber floor tile of the present invention.

Example 2 100 parts by weight of an amorphous olefin resin (UT-2315 manufactured by Ube Lexen Co.) and a petroleum-based adhesive (Mitsui Oil Co., Ltd.) were used for the polymer resin backing layers (2) and (5) in Example 1. Chemical T-300X) 40 parts by weight,
Crystalline polypropylene (Ube Lexen C-314) 1
0 parts by weight, inorganic filler (O-260 manufactured by Asahi Minami Co., Ltd.) 350
Weight part is kneaded and heated, 200 ° C, viscosity 20,000c
A fiber floor tile of the present invention was obtained in the same manner as in Example 1 except that the point used for p and the solidification treatment was only cooling.

Comparative Example 1 A commercially available fiber floor tile in which a polyurethane layer (thickness: 5 mm) chemically foamed (expansion ratio: 7 times) is laminated on the lower surface of the base fabric layer of the substantially same fiber surface layer is a comparative example. Prepared as 1.

The performance of the fiber floor tiles of Examples 1 and 2 and Comparative Example 1 was measured, and the results are shown in Table 1. In addition, the measuring method of each performance is as follows. Pile pull-out strength ... JIS L-1023 6 Decrease in thickness due to dynamic load ... JIS L-1022 Decrease in thickness due to static load ... JIS L-1022 Due to caster ... JIS L-1904 9 Dimensional change rate Due to caster ... DIN 54324 Thickness change rate Due to heat and water… JIS L-1904 3 Dimensional change rate Light floor impact sound… JIS A-1418 Tapping hammer: Steel concrete slab thickness: 150 mm

[0015]

[Table 1]

[0016]

As shown in Table 1 and FIG. 2, the fiber floor tile of the present invention is excellent in pile pull-out strength, standing stability, and durability required for rugs in the field of living, and is cushioning and walking. It has the effect of providing a comfortable living environment because of its excellent feeling and sound insulation.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of a fiber floor tile of the present invention.cross section
FIG.

FIG. 2 is a JIS A-1418 of the fiber floor tile of the present invention.
Impact sound level of light floor impact sound by
Graph showing the measurement result of the center frequency .

Claims (3)

(57) [Claims] 1. A fiber surface layer (1) composed of a fibrous material from the upper surface, a polymer resin backing layer (2), a reinforcing material backing layer (3) made of a woven or nonwoven fabric made of inorganic or organic fibers, In the organic fiber layer, 100 parts by weight of organic fiber
Heat-fusible fiber having a melting point of 150 to 170 ° C. 20 to 50 layers
A fibrous non-woven fabric having a thickness of 3 mm or more and a density of 0.05 to 0.08 g / cm ³ , which is uniformly mixed and melt-bonded, and each fiber is fused and reinforced by fusion fibers. A fiber floor tile, wherein a fiber-containing fiber backing layer (4) and a polymer resin backing layer (5) are sequentially laminated. 2. The polymer resin backing layer (2) and the polymer resin backing layer (5) are made of vinyl chloride resin, and the reinforcing material backing layer (3) made of woven or nonwoven fabric is made of glass fiber woven or nonwoven fabric. The fiber floor tile according to claim 1, comprising: 3. The fiber floor tile according to claim 2, wherein the polymer resin backing layer (2) and the polymer resin backing layer (5) are made of an amorphous olefin polymer composition.