JP2003010030A - Carpet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carpet which is naturally decomposed and annihilated by itself under the ground when subjected to landfill disposal, does not evolve toxic gases when subjected to incineration disposal and is easily disposable because of low combustion heat, etc. SOLUTION: Fiber made from polylactic acid resin are used for pile yarn 1, yarn such as ground yarn, and fabrics such as a base fabric 2 and a lining fabric 4, and a polylactic acid resin composition is used for an adhesive layer 3 for joining the base fabric 2 and the lining fabric 4.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a carpet.

[0002]

2. Description of the Related Art Conventionally, for carpet, pile fibers are made of natural fibers such as wool that are excellent in heat retention and elastic recovery, synthetic fibers such as acrylic fibers that are bulky and warm, and blended yarns thereof. For the base cloth, mainly polypropylene fiber which is inexpensive, light and hard to burn is used.

A latex of a synthetic resin emulsion has been used for the backing process.

However, this carpet is a large-sized product, and the amount of the fiber material and the backing agent used per item is large, and it is bulky and heavy. When it is landfilled, it does not decompose in the ground and remains permanently, and is incinerated. When it is disposed of, toxic gas is generated to cause pollution problems, and there is a problem that it is difficult to dispose in a harsh modern environment that aims for a clean environment such as high combustion heat and rapid damage to the furnace.

[0005]

Therefore, an object of the present invention is to spontaneously decompose and disappear in the ground when it is disposed of by landfill, and when it is incinerated, no toxic gas is generated and the combustion heat is low. Etc. is to provide a carpet that can be easily discarded.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides yarns such as pile yarns and ground yarns, and a base cloth,
The polylactic acid resin fiber was used for the cloth such as the lining, and the base cloth and the lining were joined using the polylactic acid resin composition as an adhesive. Further, it is preferable that the surface is mixed with a pattern pattern of loop pile and cut pile.

[0007]

Since the carpet according to the present invention is entirely made of polylactic acid resin, it is hydrolyzed in a natural environment, biodegradation is promoted by microorganisms and enzymes, and finally carbon dioxide gas and water disappear. To do. When it is burned, it burns as easily as cellulose and its combustion heat is as low as about 1/3 of that of acrylic and polypropylene, and no toxic gas is generated.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
And it demonstrates based on FIG.

As shown, the tufted carpet of the present invention is a pile yarn 1 which forms a nap or pile on the surface.
And polylactic acid resin fibers are used for the base fabric 2 for supporting the shape of the pile, and the lining 4 made of polylactic acid resin fibers is laminated and bonded via the adhesive layer 3 made of the polylactic acid resin composition. is there.

The pile yarn 1 is made of polylactic acid resin fiber of biodegradable polymer synthesized by polycondensation of lactic acid.
CF, which is dyed in the required color. The pile yarn 1 has a good coloring property at the time of dyeing due to the polymer arrangement, and has a glossy side surface and no glossy cross section, so that the difference in gloss is large.

The base cloth 2 is a thin woven cloth woven from biodegradable polymer polylactic acid resin fibers synthesized by polycondensation of lactic acid.

The adhesive forming the adhesive layer 3 is a polylactic acid resin composition composed of a biodegradable polymer synthesized by polycondensation of lactic acid. The polylactic acid resin composition is applied and dried to prevent pile removal. , Used to bond the lining 4.

The lining 4 is a non-woven fabric made of polylactic acid resin fiber of biodegradable polymer synthesized by polycondensation of lactic acid, and has a reinforcing effect and a non-slip effect.

The carpet is a so-called cut and loop pile in which a cut pile surface 5 having a high length and a loop pile surface 6 having a low length are mixed in a floral pattern. As described above, this carpet has a large difference in gloss between the side surface and the cross section of the pile yarn, and therefore has an advantage that the flower pattern is more distinct and the commercial value is improved.

The carpet has the above-mentioned structure.
In addition to cut-and-loop piles, full-cut piles and full-loop piles can be used depending on the application.

Further, as described above, the carpet of the present invention can be applied to a tufted carpet in which pile yarns are embedded in a base fabric, and also to a moquette in which ground yarns and pile yarns are interwoven. it can. In the case of this moquette, the ground yarn, the squeezing yarn, the pulling yarn, the covering yarn and the like must be made of polylactic acid resin fiber.

[0017]

According to the present invention, as described above, yarns such as pile yarns and ground yarns forming a carpet, and polylactic acid resin fibers are used as a fabric such as a base fabric and a lining, and a poly-lactic acid resin is used as an adhesive. Since the lactic acid resin composition is used, the carpet is a bulky and heavy product, but in the natural environment of landfill disposal, it eventually becomes carbon dioxide gas and water, and disappears, facilitating disposal.

Further, during combustion, no harmful gas is generated and the combustion heat is low, which has the advantage of extending the life of the furnace.

Furthermore, since the polylactic acid resin fiber has a large difference in gloss between the side surface and the cross section, when the cut and loop pile fiber is used, the pattern pattern becomes clear and the commercial value is greatly improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a carpet of the present invention.

FIG. 2 is an enlarged sectional view showing the structure of the same.

[Explanation of symbols]

1 pile thread 2 base cloth 3 Adhesive layer 4 lining 5 Cut pile surface 6 loop pile surface

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kazuya Matsumura             Toray shares 1-6-20 Dojima, Kita-ku, Osaka-shi             In the company F term (reference) 3B120 AB01 BA29 BA30 BC01 CA01                       EB30                 4L033 AA07 AB05 AC11 AC15 CA45

Claims (2)

[Claims] 1. A carpet in which a polylactic acid resin fiber is used for a yarn such as a pile yarn and a ground yarn and a cloth such as a base cloth and a lining, and the polylactic acid resin composition is used as an adhesive to bond the lining to the base cloth. 2. The carpet according to claim 1, wherein the cut pile surface and the loop pile surface are mixed in a patterned pattern.