JPH01175876A - Carpet for rope pulling game - Google Patents

Abstract

PURPOSE:To economically obtain a rope pulling game carpet decreased in its deformation and line peeling off by laminating a line forming fabric or a sheet- state object with a hot melt adhesive layer on an obverse side of the carpet. CONSTITUTION:Lines 1, 2, 3, 4 are formed by laminating an adhesive layer 9, consisting of preferably hot melt fiber web hot melt powder, and a line forming synthetic resin made fabric or a sheet-state object 10 of predetermined size on a predetermined part of a carpet surface to be fixed thereafter being forced to be attached by a thermal press. The hot melt fiber web is the unwoven fabric or sheet-state object constituted of copolymer polyamide, copolymer polyester, high density polyethylene, low density polyethylene and ethylene vinyl acetate system hot melt fiber or the like of melting point 70-150 deg.C. The hot melt fiber web is preferable with METSUKE of 100g/m<2>-150g/m<2> in the point of adhesive force and economical efficiency, and the hot melt powder of grain size 0-500mu is previously applied to one surface of the line forming synthetic fiber made fabric or the sheet-state object or the surface is coated with the powder, thereafter the fabric and the object are used.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a carpet for tug-of-war competitions, and specifically relates to a carpet made of synthetic fiber pile yarn, a primary base fabric with low tensile elongation, and a carpet for use in tug-of-war competitions. Synthetic fiber fabric or sheet form for forming lines with a hot melt adhesive layer (preferably consisting of a hot melt fiber web and hot melt powder) at predetermined line locations on the carpet surface consisting of a bunking layer having a preventive effect. This invention relates to a tug-of-war competition carpet made by laminating and fixing objects.

[Prior Art] Tug of war, which has become popular as a popular sports competition, has traditionally been held outdoors, but is increasingly being held indoors such as gymnasiums. However, when a tug-of-war competition is held indoors on a wooden floor, the floor is prone to wear and tear due to tug-of-war robes, shoes, etc., which has been viewed as a problem in terms of gymnasium management. In addition, when holding a tug-of-war competition, it is essential to attach film tape made of polypropylene, vinyl chloride, etc. to the floor with lines of dimensions specified by the Japan Tug-of-War Federation, and in this case, it is time-consuming to draw and remove the lines. In addition, it also had drawbacks such as being prone to peeling off during tug-of-war competitions. As a countermeasure to these problems, we have considered in the past the use of synthetic fiber needle-punch carpets as a method for creating a simple tug-of-war arena, but there were problems such as pressure sores on the carpet, deformation of the carpet, and peeling of line tape during tug-of-war competitions. Because of this, to date, no durable carpet that can be used for repeated tug-of-war competitions has been put into practical use.

In addition, the method of pulling the line necessary for tug-of-war competitions is as follows:
For wooden floor surfaces, a film line is generally used, while for fiber sheet materials such as a bed, water-based or oil-based paint can be used.
The abrasion durability of the line is insufficient, and the latter requires time and effort to apply, generates a paint odor, and has an uneven surface.Furthermore, it completely hides the pile threads of various hues, making it difficult for Japan Tug of War Federation. Both methods lack practicality, as they have drawbacks such as difficulty in clearly expressing white lines and red lines of a defined line hue.

[Problem that the invention seeks to solve]

In view of the above-mentioned facts, the present invention has been developed to
(1) Great protection for the gymnasium wooden floor. (2) Even in repeated tug-of-war competitions, there is little slippage (bedsores) between the carpet/wooden floor, carpet deformation, and line peeling, etc. The purpose is to economically obtain competition carpets.

[Means for Solving the Problems J] The present invention has a front side mainly composed of synthetic fiber pile yarn,
A carpet consisting of a primary base fabric of low tensile elongation with a backing layer having an anti-slip effect on the opposite back side, and a line-forming fabric or sheet material is hot-melted on the front side of the carpet. This is a carpet for tug-of-war competitions that is laminated with adhesive layers.

Hereinafter, the present invention will be explained in more detail with reference to some of the accompanying drawings.

FIG. 1 is a schematic plan view of an example of a tug-of-war competition carpet of the present invention, and FIG. 2 is an explanatory cross-sectional view showing the bonding mode between the primary base fabric of the carpet and the line-forming fabric (or sheet-like material) of the present invention. This is a schematic diagram.

The surface of the tug-of-war competition carpet 5 of the present invention illustrated in FIG. 1 has a center line 1 (width 8
cm line, red center with white 1.5cm border), 2m line 2 (8cm wide white line), end line 3 (5cm wide white line) and side line 4 (5cm wide white line) white line) is attached.

In the tug-of-war competition carpet 5 of the present invention, these lines 2, 3, and 4 are formed by forming a hot melt adhesive layer 9 (preferably made of hot melt fiber web and hot melt powder) on the primary base fabric 7 of the carpet, as shown in FIG. Become)
It is firmly connected through the Note that in FIG. 2, these lines are collectively indicated by the reference numeral 10. That is, the reference numeral 10 indicates a synthetic fiber fabric or sheet-like material for line formation.

In the present invention, the synthetic fiber pile yarns (part numbered 6 in Figure 2) include polyester fibers, polyamide fibers, polyacrylic fibers, aramid fibers, high-strength polyester fibers, and high-strength rayon fibers. Examples include those made of short fibers or long fibers, particularly processed yarns, such as polyamide fibers having excellent abrasion resistance, such as nylon 66, nylon 6, and nylon 46. Regarding the yarn count, hue, and dyeing method of the pile yarn, conventional methods can be widely applied. In addition, there are no particular restrictions on the pile length, pile form, or pile density of the pile yarn, but from the viewpoint of the durability of the pile yarn during repeated tug-of-war competitions, the tug-of-war crown, and the ease of shoes separating from the carpet surface, level loop type tufts are used. Carpet is preferred, and the pile length and pile density are 300 g/m2 or more, preferably 500 g.
/m2 to I Kg7m2 is suitable.

The hue of the Naori-bet pile yarn can be used without any particular restrictions as long as it can be distinguished as a white line or a red line.

The primary base fabric of the carpet in the present invention (marked at 7 in Fig. 2)
) is an important element in fixing the pile yarn with the tuft yarn using a conventional method and preventing vertical and horizontal stretching during tug-of-war competitions.In addition to polypropylene, polyester, and polyamide synthetic fibers, Fabrics, especially textiles, made of high-strength synthetic fibers such as aramid and high-strength polyethylene fibers are particularly preferred as carpet base fabrics for tug-of-war competitions that have high tensile strength and low tensile elongation. Specifically, the tensile elongation is 10% or less, preferably 1 to 8%,
More preferably, it is 2 to 6%.

In the present invention, a backing layer 8 having an anti-slip effect is provided on the back side of the primary carpet base fabric 7. A backing layer that has the effect of preventing indoor floor surfaces firmly fixes the pile yarn roots between the pile yarns and the base fabric, while improving the adhesion between the carpet and the floor surface, preventing bedsores and deformation of the carpet during tug-of-war competitions. It can be formed using a latex backing agent such as polyacrylic, polyurethane, SBR, NBR, polybutadiene, natural rubber, or tar.

Additives such as various inorganic substances, flame retardants, insect repellents, antibacterial deodorants, deodorants, and gas discoloration inhibitors are optionally mixed and used in these latexes for forming the backing layer as fillers (weight increasers). The amount of latex deposited on the carpet base fabric is 200g/m'' to 2000g/m2, preferably 300g/m2.
g/m2 to 1500 g/m".

In addition, the backing layer (latex side) surface is made of pile yarn/
Particularly preferred is one that completely covers the base fabric surface from the viewpoint of preventing slippage between the floor surface and the carpet.

Furthermore, it is desirable that these backing latexes have elasticity to the extent that cracks do not occur when the carpet is rolled up and stored, and that changes in dimensions/physical properties with respect to temperature and humidity are small.

The raw carpet obtained by the above method was cut to the size stipulated by the Japan Tug of War Federation (length 27.5 m, width 1.8 m), and the center line, 2 m line, end line and side After pasting the lines, it is used as a tug-of-war competition carpet.

In the present invention, these lines are preferably made of hot melt fiber web/
Adhesive layer 9 made of hot melt powder and synthetic fiber fabric or sheet material 1 for forming lines of a predetermined size
It is formed by laminating layers 0 and then pressing and fixing them using a hot press.

Here, the hot melt fiber web refers to a melting point of 70 to 1
It is a fabric or sheet-like material such as a nonwoven fabric made of 50° C. copolymerized polyamide, copolymerized polyester, high-density polyethylene, low-density polyethylene, ethylene-vinyl acetate hot-melt fiber, or the like.

Hot melt fiber web has a basis weight of 20g/m”~300
g/m2 can be used, but especially 100 g/m2
g/m2 to 150 g/m2 is preferable in terms of adhesive strength and economical efficiency.

On the other hand, it is preferable that the hot melt powder has the same composition as the above-mentioned hot melt fiber and is used in powder form.

The hot melt powder has a particle size of 0 to 500μ, preferably 5
A material having a particle size of 0 to 500 μm is applied or coated on one side of a line-forming synthetic fiber fabric or sheet material before use. For example, applying or coating an aqueous dispersion or solvent solution of a hot melt powder. In some cases, powder may simply be sprinkled on.

These hot-melt fiber webs or hot-melt powders have a rich irregularity in morphology and function to firmly adhere between the carpet surface having a large porosity and the line fabric or sheet-like material.

In the present invention, in order to adhere and fix the line-forming fabric or sheet-like material, the temperature is lower than that of the carpet pile yarn material and the line-forming fabric (or sheet-like material), but slightly higher than the melting point of the hot melt fiber and hot melt powder. Perform heat compression bonding.

In addition, in the above line imparting method, if desired, a thermosetting binder such as a urethane-based, polyester-based, or acrylic-based binder may be used in combination with the hot-melt fiber web/hot-melt powder adhesion M.

In addition, the synthetic fiber fabric or sheet-like material used in the present invention is for displaying the center line, 2m line, side lines, and end lines that are essential for determining the outcome of tug-of-war competitions, and the center line has a red center. The 2 cm line is an 8 cm wide line with a 1.5 cm white border, the 2 cm line is an 8 cm wide white line, and the other lines are 5 cm wide white lines. Synthetic fibers such as polyester, polyamide, polyacrylic, and polypropylene fibers, as well as other semi-synthetic fibers and natural fibers can be used as materials for these lines, but there are certain issues such as abrasion durability, fabric properties, adhesion, and color development. Polyamide fibers such as nylon 6 and nylon 66 are preferred. Examples of the usage form of these materials include fabrics such as knitted fabrics, woven fabrics, nonwoven fabrics, and films, or sheet-like articles. These line fabrics are dyed to a desired white or red color by conventional yarn dyeing or reverse dyeing and then used. Further, it is preferable to apply or coat the back side of these line fabrics with hot melt powder as described above.

[Function] The tug-of-war competition carpet thus obtained has the following properties:
Abrasion-resistant pile yarn, base fabric with low tensile elongation, special backing layer to prevent pressure sores and carpet deformation, hot melt fiber web on the carpet surface, and synthetic fiber fabric or sheet for lines bonded by heat using hot melt powder. Due to its structure consisting of shaped materials, it exhibits durability against repeated use. This carpet can also be used as a simple tug-of-war arena by laying it on a wooden floor such as a gymnasium. The carpet of the present invention can also protect wooden floor surfaces that are susceptible to abrasion damage.

The present invention will be explained below with reference to Examples.

Example 1 Nylon BCF 1300d/64t raw yarn was used as a pile yarn, and a polyester filament fabric (tensile elongation 5%) was used as the primary base fabric for the carpet, and a 1/10 gauge level loop car was fabricated by a conventional method. Create a pet,
An orange dyed product was obtained by a conventional method. The resulting carpet had a pile length of 4.5 mm and a mesh size of 800 g/m2.

Apply natural rubber latex (solid content 60%) to the back side of this carpet using the normal back coating method.FF160
After coating and curing with dry heat so that the weight is 0g/m2, the size specified by the Japan Tug of War Federation (width 1.8cm,
It was cut to a length of 27.5 m.

A hot melt fiber web (melting point 12
0°C, copolyamide hot melt i-fi 260d
Spunbond, mesh size 100g/m2) and hot melt powder (melting point 115℃, copolyamide particle size 50
After laminating nylon filament fabrics of a predetermined size for forming a white line, which were back-coated with 100 g/m2 of 100 g/m2 of 100 g/m2 of 100 g/m2 of 100 g/m2 of 100 g/m2 of nylon filament fabric, the fabric was heat-pressed at 125 DEG C. with an iron to obtain a tug-of-war competition carpet as shown in FIG.

Example 2 A tug-of-war competition carpet was obtained in the same manner as in Example 1, except that a cut-type pile portion was used instead of the level loop.

Comparative Example 1 In Example 1, a commercially available gymnasium polypropylene tape (with adhesive) was used without using hot melt fibers or hot melt powder as the line provision method.
A carpet for tug-of-war competition was obtained using the same method as in Example 1 except for the above.

Comparative Example 2 A tug-of-war competition carpet was obtained in the same manner as in Example 1, except that no hot melt fiber web was used at all in the line application method.

Comparative Example 3 A tug-of-war competition carpet was obtained in the same manner as in Example 1 except that the amount of latex deposited on the backing layer was 150 g/m2.

Comparative Example 4 A tug-of-war competition carpet was obtained in the same manner as in Example 1, except that a commercially available water-based paint was applied and then dried.

Comparative Example 5 A tug-of-war competition carpet was obtained in the same manner as in Example 1 except that the primary base fabric in Example 1 was a polypropylene fabric having a tensile elongation of 10% or more.

The carpets for tug-of-war competitions obtained in Examples 1 and 2 and Comparative Examples 1 to 5 were evaluated for their effectiveness in protecting gymnasium floors and their durability in repeated tug-of-war competitions, and the results are summarized in Table 1.

According to the obtained results, Examples 1 and 2 of the present invention were good in both the protective effect on the gymnasium floor and the durability for use in tug-of-war competitions. On the other hand, in Comparative Example 1, the line tape peeled off, in Comparative Example 2, the line fabric peeled off, and in Comparative Example 3, bedsores occurred between the back side of the carpet and the wooden floor surface, and the center of the carpet during the competition. Comparative Example 4 has a paint odor, the line surface hardens and the texture becomes hard, clear lines cannot be obtained due to the low hiding power of the carpet orange color, and the paint when worn. Comparative Example 5
During the tug-of-war competition, the carpet stretches vertically,
These carpets had drawbacks such as the appearance of walnuts in the center of the carpet in the longitudinal direction, and none of them could be used repeatedly for tug-of-war competitions.

[Effects of the Invention] As described above, the tug-of-war competition carpet according to the present invention is constructed of a synthetic fiber pile yarn with excellent abrasion resistance, a primary base fabric with low tensile elongation, and a special backing layer. It is obtained by heat-pressing and fixing hot-melt fiber web, hot-melt powder, line synthetic fiber fabric or sheet-like material, so it can be easily laid on a wooden floor such as a gymnasium to create a tug-of-war arena. Furthermore, it is possible to economically obtain a tug-of-war competition carpet that protects the wooden floor surface and does not cause any troubles such as carpet bedsores, carpet deformation, line peeling, etc. even during repeated use.

Furthermore, even if the line should become damaged or peel off after long-term use, it can be easily repaired by heat-pressing using a hot-melt fiber web/line fabric or sheet material coated with hot-melt powder.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of the tug-of-war competition carpet of the present invention;
FIG. 2 is an explanatory cross-sectional view showing the state of adhesion between the carpet base fabric of the present invention and the line-forming fabric.

Claims (2)

[Claims] (1) A carpet consisting mainly of synthetic fiber pile yarn on the front side and a primary base fabric with low tensile elongation provided with a backing layer that has an anti-slip effect on the opposite back side, the carpet A tug-of-war carpet comprising a line-forming fabric or sheet-like material laminated with a hot-melt adhesive layer on the front side. (2) The tug-of-war competition carpet according to claim 1, wherein the hot-melt adhesive layer is a hot-melt fiber web and a hot-melt powder.