JPH09131374A - Expansion bandage having hand cutting property - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a good hand cutting property and feeling by setting the tensile strength of a weft stronger than that of a warp, and sticking the emulsion type natural rubber, synthetic rubber, or their mixture having a specific glass transition point to a ground fabric. SOLUTION: This bandage 1 has a ground fabric woven with warps 2 and wefts 3. Elastic yarns 5 covered with cotton, chemical fibers, synthetic fibers, or other proper fibers on the surface of elastic core yarns and nonelastic yarns 6 such as cotton yarns or cotton blended yarns are used for the warps 2. The elastic yarns 5 and the nonelastic yarns 6 are normally used at the numerical ratio of about 1:1-1:6, and the bandage 1 has an expansion property in the longitudinal direction. The wefts 3 are driven into the warps 2, and proper nonelastic fibers such as cotton yarns or chemical fibers are used for the wefts 3. The emulsion type natural rubber 13 having the glass transition point -4 deg.C or below is stuck to the surface of a ground fabric 4 by spray coating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic bandage having good hand-cutting property and texture.

[0002]

2. Description of the Related Art Since an elastic bandage is formed so as to expand and contract in the length direction, if you try to tear it by hand,
As the warp extends in the lengthwise direction, the weft picked up by the hand slips out against the warp, and due to the displacement movement of the weft, the force does not work well and the hand-cutability is deteriorated. Moreover, when the weft and the warp are adhered to each other so that the weft does not move during cutting, a new problem arises that the texture becomes poor.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a bandage having good hand-cutting properties and good texture.

[0004]

According to the present invention, a base cloth is woven with warps and wefts, the tensile strength of the wefts is made stronger than that of the warp, and the base cloth has an glass transition point of -4 ° C or less. Of natural rubber or synthetic rubber, or a mixture thereof, and the above-mentioned emulsion type rubber is spray-coated on the base cloth.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A bandage (1) is woven with a warp (2) and a weft (3) to form a base cloth (4). The warp yarn (2) is made by coating the surface of an elastic core yarn with cotton or chemical fibers, synthetic fibers or other appropriate fibers, and other elastic yarns (5) and non-elastic yarns (6) such as cotton yarn or cotton blended yarn. Use this elastic thread and the number of threads of inelastic thread is usually about 1: 1
The ratio is set to about 1: 6, and both yarns are uniformly arranged to have elasticity in the length direction of the bandage. In the case of the one shown in the figure, this ratio is set to 1: 2, that is, two non-elastic yarns are arranged between the elastic yarns and the elastic yarns so that the elastic yarns come to both end portions of the cloth. However, the ratio of the elastic yarn to the non-elastic yarn may be other than the above.

The density of such warp (2) rows can be set to an appropriate value depending on the application, but normally it is good to set about 3 to 30 threads per 1 cm width, and in the case shown in the figure, it is 21.
It is a book.

The weft (3) is driven into the warp (2) row, and the weft can be made of an appropriate non-elastic fiber such as cotton yarn, chemical fiber, synthetic fiber or blended fiber.
Usually, it is often preferable to use cotton yarn in consideration of breathability, hygroscopicity and the like. This weft extends the elastic yarn,
It is advisable to drive the non-elastic yarns into the warp rows that have been aligned so that they do not come loose, and then weave them.

The one shown in the figure is formed in a portion (7) and a narrow portion (8) where the spacing between adjacent wefts is wide as if weaved with two wefts, and is inelastic when the elastic yarn shrinks. The loose part of the thread is mainly located in the wide part. The wide portion (7) of the weft row is usually formed about 1 to 3 times the space between the warp rows, and the narrow portion (8) is formed about 1/2 to 1/6 of the space between the warp rows. The interval is not limited to this.

The weft (3) is formed so that the tensile strength is stronger than that of the warp (2), and the warp is easier to break than the weft. In the figure, weft thread (3) is about 210-260.
gf and the warp (2) is about 150 to 220 gf.

Ears (9) are formed at both ends of the base cloth (4). The ears are one side edge of the cloth
In (10), the weft thread (3) is laid over the warp thread (2) and woven by a single chain stitch method of sewing, and at the other side end portion (11), the weft thread (3) is used to loop (12). ) Is formed and
It is formed by passing the weft that is folded back next to the loop. At this time, both ears may be used together with the weft threaded over the warp threads, or the loops may be formed and the weft thread may be passed through the loops, or other suitable means.

On the surface of the base cloth (4) thus formed, a natural rubber (13) of emulsion type having a glass transition point of -4 ° C or lower, or butadiene rubber, styrene-butadiene rubber, isoprene rubber, chloroprene rubber, Acrylonitrile-butadiene rubber (nitrile rubber), acrylic rubber or other synthetic rubber or a mixture thereof is attached by spray coating or the like.

[0012] This adhesion amount is usually such that the texture of the cloth is blocked and the air permeability is not deteriorated.
It is preferably about g / m ² (dry at extension). The emulsion type rubber is used as the base cloth (4) in the examples.
Although it is applied to the entire surface of the above, it may be applied to the end portion of the base cloth.

Bandages prepared by applying various emulsion type rubbers to the above-mentioned base fabric were prepared as samples, and experiments were conducted on their hand-cutting property, texture and the like. The results are shown in Table 1 below.

[0014]

[Table 1]

At the time of coating, an air gun for coating is used,
The air pressure was set to 4.0 Kgf / cm ² . When the emulsion has a high viscosity, it was appropriately diluted with water and sprayed. In the above table, the glass transition point indicates a catalog value, but those with an underline indicate an actual measurement value according to the JISK6301 low temperature twist test.

As a result of the experiment, as is clear from the above table,
When the glass transition point is -4 ° C or lower, the hand-cutting property and the texture are improved. The product name Bond CR50
0, Bond GXP2, Nipol LX531, JS
The sample of R 0700 has self-adhesiveness.

This bandage (1) is usually wound around a winding core (14), and when it is used, the end is applied to the affected part which has been treated, and it is stretched in the longitudinal direction (length direction). Roll it up with ease. At that time, the ears on the side of the bandage do not cause the thread to be frayed, so that it is easy to wind and the winding up is clean. Once the affected area has been wrapped to protect it, the bandage can be easily torn by grasping part of the side edges of the bandage with both hands and pulling laterally. If weft threads are formed alternately in the narrow and wide areas, the loose non-elastic threads will fit in the wide area when the warp elastic threads shrink. It does not wrinkle, it does not have dryness, and itching does not occur, and since it is cut from the wide part, the weft thread does not get in the way when cutting and it is smooth.
You can

[0018]

Industrial Applicability According to the present invention, in the weft yarn for weaving the base fabric of the bandage as described above, its tensile strength is made stronger than that of the warp yarn, and the emulsion having a glass transition point of -4 ° C or lower is used for the base fabric. Since the type of rubber is attached, the warp can be cut along the weft thread, and the weft thread does not move during the cutting, making it easy to cut and making it easy to cut by hand. When it was done, it was supple and did not become stiff, and it was easy to roll and fit well on the skin and the texture was good. Also, when the above emulsion type rubber is spray-applied to the base cloth, it will be applied in spots,
Unlike when applied to the entire surface, it is possible to suppress the deterioration of the texture of the base fabric. Furthermore, when an antibacterial agent is mixed in the emulsion type rubber, an antibacterial effect can be obtained, which is hygienic.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a schematic plan view showing the bandage partially enlarged in a state of being pulled in the warp direction.

[Explanation of symbols]

 2 Warp 3 Weft 4 Base fabric 13 Emulsion type natural rubber

Claims (3)

[Claims] 1. An elastic bandage in which a base fabric is woven with a warp yarn oriented in the length direction of the bandage and a weft yarn oriented in the width direction, the tensile strength of the weft yarn is formed to be stronger than that of the warp yarn, and the base fabric has a glass transition point. A stretchable elastic bandage having an emulsion type natural rubber or synthetic rubber at -4 ° C or lower attached thereto or a mixture thereof. 2. The stretchable bandage having a hand-cutting property according to claim 1, wherein the weft thread is woven by a sewing machine-stitched single chain stitch method. 3. A stretchable bandage having tearability according to claim 1 or 2, wherein the emulsion type natural rubber or synthetic rubber or a mixture thereof is spray-applied to the base cloth.