JP3465187B2 - Backing material for carpet and carpet using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a backing material used for a carpet and a carpet using the same.

[0002]

2. Description of the Related Art A carpet in which pile yarns are planted on the surface of a base cloth by a tufting machine and burlap cloth as a backing material is adhered to the back surface of the carpet cloth by an adhesive has been known. However, in a conventional carpet that uses burlap as a lining material, when it is used on a tatami mat or the like of a general household, the hard burlap scratches the surface of the tatami mat, accelerating the consumption of the tatami mat, and further When the above-mentioned carpet is installed on the floor, the carpet (burlap) comes into contact with the wall covering and damages the wall covering during the construction work, so a curing work to protect the wall covering as a preparatory work before construction. Will be needed,
There was such a problem.

Further, since burlap cloth is a linen cloth formed by weaving the warp yarns and the weft yarns continuously, in a conventional carpet using burlap cloth as a backing material, the back surface of the carpet raw fabric is lined. When adhering burlap as a material, the adhesive area between the burlap and the adhesive (latex) is small, so it is necessary to apply more adhesive to the back surface of the carpet greige. Since a large amount of adhesive is required to adhere to the carpet, the carpet becomes harder and heavier. Furthermore, in the above-mentioned conventional carpet, when the operation of seaming the carpet (seaming) is performed, the burlap and the adhesive are used. There is also a problem that the adhesion between the seaming tape and the backing material is poor because the adhesive area with the carpet is small, and the joining of the carpets is not stable. .

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of these problems, and an object of the present invention is to provide excellent elasticity, flexibility and appropriate hardness, and dimensional stability. The object is to provide a backing material for a carpet, which is good in quality, rich in dignity, clean, and consumes less adhesive (latex). In addition, another object of the present invention is to
An object of the present invention is to provide a carpet which has excellent elasticity on the back surface, is highly flexible, does not damage tatami mats, has excellent workability in construction, and is suitable for splicing carpets.

[0005]

[Means for Solving the Problems] To achieve the above objects,
In the backing material for a carpet of the present invention, the carpet greige bonds mechanical entanglement of the above fibers in the fiber thin film in which the opened fibers are intertwined with each other to the linen cloth.
On the side, the exposed amount of the fiber becomes 10 to 40 wt%.
It is characterized in that it has fixed them given to so that. In addition, the carpet of the present invention is
The carpet greige bonds the mechanical entanglement of the above fibers in the fiber thin film in which the opened fibers are intertwined with each other.
The exposed amount of the fiber is 10 to 40 wt%
And fixing them, and using this cloth as a backing material for the carpet raw machine, it is adhered to the back surface of the carpet raw machine with an adhesive.

According to the present invention as described above, since the cloth, which is obtained by mechanically intertwining and fixing the fiber thin film to the linen cloth, is used as the backing material for the carpet, the backing material is excellent in elasticity and flexibility. It has a good hardness and a good dimensional stability, a solid feeling, and a clean feeling, and the carpet has excellent elasticity on the back side, flexibility, tatami mats, etc. It is possible to make it suitable for splicing carpets with each other, since it does not damage the carpet and has excellent workability.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 4 show an example of a carpet and a backing material for a carpet according to the present invention. As shown in FIG. 1, a carpet 1 according to the present invention
Is a base cloth 2 made of woven or non-woven cloth, pile yarns 5 planted on the surface of the base cloth 2 by a tufting machine, and a backing material adhered to the back surface of the base cloth 2 with an adhesive (latex) 3. It is composed of four.

As shown in FIGS. 2 and 4, the backing material 4 is a linen cloth 4a serving as a base cloth, and a fiber thin film 4 fixed to both surfaces of the linen cloth 4a by mechanically intertwining the linen cloth 4a.
b, 4c. This fiber thin film 4b,
Reference numeral 4c is a fiber in which the opened fibers are intertwined with each other via the linen cloth 4a. As shown in FIG. 3, the fiber thin film material 4x is placed on the linen cloth 4a, and the linen cloth is formed by needling. The textile 4a is mechanically entangled with the thin film material 4x,
Thereby, as shown in FIGS. 2 and 4, the linen cloth 4a
The fiber thin films 4b and 4c can be fixed to the front and back surfaces of the. Further, as shown in FIG. 5, the backing material 4 is obtained by stacking fiber thin film materials 4x on the upper and lower surfaces of the linen cloth 4a and entwining them with the linen cloth 4a by needling, as shown in FIG. The fiber thin films 4b and 4c may be fixed to the front and back surfaces of the linen cloth 4a.

The backing material 4 is manufactured by supplying a fiber thin film, which is opened by a doffer of a card machine and intertwined with each other to have a uniform and adjusted thickness, to the upper surface of the linen cloth, or The fiber thin film is supplied to the upper surface and the lower surface of the linen cloth, and the supplied fiber thin film and linen cloth are vertically moved at a high speed (needling) from the upper side and the lower side by special needles arranged in tens of thousands. By doing so, the fiber thin film and the linen cloth can be entangled with each other so as to maintain appropriate flexibility and thickness. In this way, the fabric in which the fiber thin film is mechanically entangled and fixed to the linen fabric is passed through the needle-reading machine in the final step and then used as the backing material for the product.

When the backing material 4 is manufactured, the ratio of the exposed amount of the fiber thin film 4b on the front surface side to the fiber thin film 4c on the back surface side is 10 to 40 wt% for the fiber thin film on the front surface side.
The fiber thin film on the back surface side is preferably 90 to 60 wt%. Fibers used for the fiber thin films 4b and 4c of the backing material 4 include polyester fibers (polyester), polyamide fibers (nylon), polyacrylonitrile fibers (acrylic / acrylic), polyvinyl alcohol fibers ( Vinylon), polypropylene fiber (polypropylene), polyvinyl chloride fiber, polyethylene fiber,
Synthetic fibers such as polyvinylidene chloride fiber, polyurethane fiber, polyvinyl alcohol / polyvinyl chloride copolymer fiber, and seed hair fiber (cotton), bast fiber (flax,
Cannabis, jute), leaf fibers (manila hemp, sisal hemp), animal hair fibers (wool), and other plant fibers and animal fibers can be mentioned. These can be used alone or as a mixture of two or more.

The linen cloth 4a which is the base cloth of the backing material 4 has a linen cloth 15 in view of workability and commercial value.
0g ^{/ m 2} ~350g ^/ m 2 about what is most preferred. Fiber thin films 4b and 4c used for the backing material 4
The ^usage, it is preferable to use ^{50g / m 2 ~350g / m 2} . Adhesive (latex) 3 for adhering the backing material 4 to the back surface of the base cloth 2 in the carpet raw machine.
Examples of the adhesive include an acrylonitrile-budadiene copolymer adhesive (NBR), a styrene-butadiene copolymer (SBR),
Examples thereof include synthetic latex such as ethylene / vinyl acetate copolymer (EVA), low melting point powder (powder) adhesive (EVA / polyethylene type), low melting point synthetic fiber adhesive (sheet).

These adhesives 3 are applied to, sprayed on, or inserted into the back surface of the base cloth 2 in the carpet fabric, and the backing material 4 is adhered to the back surface of the base cloth 2. In addition, the backing material 4
The linen cloth 4a or the fiber thin films 4b and 4c can be colored according to taste or need.

As the base fabric 2 of the carpet greige, synthetic fiber woven or non-woven fabric such as polypropylene fiber, vinylon fiber or polyester fiber is used, and as the pile yarn 5, nylon fiber, vinylon fiber, acrylic fiber or the like is used. Synthetic fiber multifilaments, spun yarns, or mixed yarns thereof can be used, and also conventional natural fibers can be used.

In the carpet having the above structure,
The liner 4 is applied to the hemp cloth 4a which is the base cloth, and the fiber thin film 4
Since b and 4c are mechanically entangled and fixed, the backing material 4 is excellent in elasticity, has appropriate flexibility while being rich in flexibility, has good dimensional stability, and is rich in solid feeling,
There is a feeling of cleanliness. Further, in the lining material 4, the fiber thin film 4b is provided on the adhesive surface side of the linen cloth 4a to the carpet greige 10 to 10.
Since 40 wt% is expressed, the adhesiveness of the linen cloth 4a itself to the carpet greige is combined with the adhesiveness between the fiber thin film and the carpet greige, resulting in a larger adhesive area and higher adhesiveness. In addition, the amount of adhesive used can be reduced by 20 to 30% compared to the conventional example, and the adhesion between the seaming tape and the backing material is also improved, so the stability of the joint portion between carpets is stable. Sex is improved.

Further, in the carpet 1, since the backing material 4 is used for the carpet greige, the back surface is excellent in elasticity, is flexible and has appropriate hardness, and therefore the carpet 1 is generally used. When used on a household tatami mat, the surface of the tatami mat is not scratched, and even when the carpet 1 is installed on the floor, the carpet does not come into contact with the wall covering material and damage the wall covering material. Therefore, the curing work can be omitted. Further, since the carpet 1 using the backing material 4 has excellent elasticity on the back surface, it contributes to preventing deterioration of the pile yarn 5 on the carpet surface.

On the other hand, the carpet 1 can reduce the amount of the adhesive used for adhering the base cloth and the backing material, and is 150 g to 280 g per 1 m ^{2 in} weight as compared with the conventional carpet using the burlap cloth as the backing material. Therefore, the workability of construction is improved.

Next, the test results concerning the comparison of the adhesive force between the carpet greige and the backing material in the examples and comparative examples of the present invention will be shown. This test was carried out by applying a latex having a coating amount of 1100 to 1500 g / m ² in a wet state for each of Examples and Comparative Examples of the present invention in which the same carpet greige was used. Was measured and the results are shown in Table 1. As can be seen from the table, it was confirmed that the peeling strength of the example of the present invention was significantly superior to that of the comparative example (about twice), and the peeling strength of the thin film made of the fiber thin film It was confirmed that the adhesive effect with the combined adhesiveness was generated and that it had excellent strength.

[0018]

[Table 1]

[0019]

As can be understood from the above description, according to the present invention, it is excellent in elasticity, flexibility and appropriate hardness, good dimensional stability, rich feeling, and cleanliness. There is a feeling, and the consumption of the adhesive is small, and the backing material for the carpet, and the back side is excellent in elasticity and rich in flexibility,
It is possible to provide a carpet that does not damage a tatami mat or the like, has excellent workability, and is suitable for joining carpets.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a carpet according to the present invention.

FIG. 2 is a partially enlarged cross-sectional view of a carpet backing material according to the present invention.

FIG. 3 is a perspective view before fixing the linen cloth and the fiber thin film on the backing material.

FIG. 4 is a partially cutaway perspective view of the same fixed state.

FIG. 5 is a perspective view of a liner cloth in another embodiment of the backing material and fiber thin films arranged above and below the liner cloth before being fixed.

FIG. 6 is a partially cutaway perspective view of the same fixed state.

[Explanation of symbols]

1 carpet 2 base cloth 3 adhesive 4 Lining material 4a linen cloth 4b, 4c Fiber thin film 5 pile yarn

Claims (2)

(57) [Claims] 1. A back used for adhering to a carpet raw fabric.
When the carpet greige adheres to the linen cloth, the mechanical entanglement of the fibers in the fiber thin film in which the opened fibers are entangled with each other is 10% on the linen cloth side. A backing material for a carpet, characterized in that they are applied so as to be about 40 wt% to fix them. 2. The surface entanglement of the fibers in the thin film made of fibers in which the opened fibers are intertwined with each other in the linen cloth is 10 to 10 in the exposed amount of the fibers on the side where the carpet greige is adhered. A carpet characterized by being provided so as to be 40 wt% and fixing them, and using this cloth as a backing material for a carpet raw machine, and adhering it to the back surface of the carpet raw machine with an adhesive.