JPH1121738A - Rubber string, its production and clothing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rubber string having high heat resistance and durability, its production and clothing. SOLUTION: This rubber string has a belt-like woven rubber 12 woven with fine rubber threads 14 and fine weaving threads 16 and having stretchability in the longitudinal direction. A heat resistant rubber 18 coated and having stretchability is arranged around the woven rubber 12. The heat resistant rubber 18 is a silicon rubber, a fluorine rubber, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to semiconductors, chemicals,
The present invention relates to a rubber strap used for a fastening portion such as a cuff of clothes worn in a clean room for foodstuffs, a method of manufacturing the same, and clothes.

[0002]

2. Description of the Related Art Conventionally, in a clean room garment used in a clean room, a band-shaped rubber cord is inserted into a tightening portion such as a cuff or a hem, and a rubber thread such as natural rubber and a rayon or the like are inserted into the rubber cord. Woven rubber woven with yarn is used.
As a result, the cuffs and hem have elasticity so that they can be closely attached to the body and move easily, and at the same time, dust and bacteria are prevented from entering the clean room from inside the clothes. And such cleanroom clothing is used when dealing with medicines and foods.
Autoclave treatment by high temperature is performed for sterilization.
This autoclave treatment is usually performed at 121 ° C. for 30 minutes.

[0003]

In the case of the above-mentioned conventional technology, the rubber cord used for the clothes for the clean room is
Due to the use of natural rubber that degrades due to heat, repeated high-temperature autoclave treatment is performed each time washing is performed, resulting in loss of elasticity, cuffs and hem extending completely, and a gap between the body and the body There was something. Dust and bacteria may come out of the clothes into the clean room from the gap, which is not preferable for hygiene and maintenance of cleanliness.

[0004] As a rubber cord having heat resistance and maintaining high elasticity, a tape made of heat-resistant rubber such as silicone rubber may be considered. However, strip-shaped silicone rubber has a low tear strength and has a cuff. The rubber is easily torn from the needle hole formed when sewing in a ring shape according to the hem.

[0005] The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to provide a rubber string having high heat resistance and durability, a method of manufacturing the same, and clothing.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a belt-shaped woven rubber woven with a thin rubber thread and a thin woven yarn and having elasticity in the longitudinal direction, and a heat-resistant woven rubber material coated around the woven rubber and having elasticity. It is a rubber string provided with rubber. The heat-resistant rubber is, for example, silicone rubber or fluorine rubber.

When the rubber thread forming the woven rubber is made of heat-resistant rubber such as silicone rubber, the woven rubber may not be coated with the heat-resistant rubber.

Further, the present invention extends a woven rubber which is woven with a thin thread rubber and a thin woven thread and has elasticity in the longitudinal direction by applying an appropriate tensile force in the longitudinal direction of the woven rubber, and stretches the periphery of the woven rubber. A method for producing a rubber string in which a heat-resistant rubber dissolved in a solvent and liquefied is applied to the woven rubber, and then dried in a drying furnace with the tensile force of the woven rubber released, and the heat-resistant rubber is solidified. .

Further, the present invention is a garment comprising the rubber string having heat resistance, wherein the rubber string is provided in the opening or in the middle of the cloth.

When the rubber cord of the present invention is subjected to a high-temperature sterilization treatment, the silicone rubber on the outside of the rubber cord is directly subjected to heat, but since the silicone rubber has heat resistance, it has high elasticity even after the sterilization treatment. However, the rubber thread of the inner woven rubber does not receive heat directly and the elasticity is not impaired. In addition, since the core is made of a woven rubber woven with a rubber thread and a woven thread, the tear strength is high and the fiber does not tear.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. A rubber cord 10 of this embodiment has a belt-shaped woven rubber 12 at the center, and the woven rubber 12 is made of a rubber thread 14 made of natural rubber or the like. , Yarn 1 made of rayon, etc.
6 woven. Around the woven rubber 12, a silicone rubber 18 which is a heat-resistant rubber is coated. The silicone rubber 18 has also penetrated into the texture of the woven rubber 12.

Next, a method of manufacturing the rubber cord 10 of this embodiment will be described. The rubber cord 10 is continuously covered with the silicone rubber 22 by the resin processing machine 20 shown in FIG. First, the woven rubber 12 wound on the reel 21 is immersed in a bath 24 containing a liquid silicone rubber 22 dissolved in a solvent by unwinding one end of the woven rubber 12 from the reel 21. The woven rubber 12 passes under a delivery rod 26 provided below the surface of the silicone rubber 22 in the bathtub, and is inserted between delivery rollers 28 and 30 provided above the bathtub 24 and parallel to each other.

The delivery rollers 28 and 30 hold the rubber cord 12 therebetween, and are rotated by a motor 32 to apply an appropriate tensile force to the woven rubber 12 located between the reel 21 and the delivery rollers 28 and 30. The tension may be any as long as a gap is formed between the rubber threads 14 such that the silicone rubber 22 can easily enter. In addition, the delivery rollers 28 and 30 drop excess silicone rubber 22 on the front and back surfaces of the woven rubber 12.

After passing through the delivery rollers 28 and 30,
The tension of the woven rubber 12 is released, and the woven rubber 12 is put into a drying oven 34, and the silicone 22 is dried and solidified to complete the coating.
0 is produced. Rubber string 1 when it comes out of the drying furnace 34
0 is fed by the guide roller 36 and wound on a reel 39.
The guide roller 36 is rotated by a motor 38.

A tension detector 4 for detecting the tension of the woven rubber 12 is provided between the delivery rollers 28 and 30 and the drying furnace 34.
0 is provided. The tension detector 40 detects a vertical position of the woven rubber 12 in a state where the woven rubber 12 is bent. On the side of the woven rubber 12, a sensor 42a located above the woven rubber 12 and a woven rubber 12 Is provided below the sensor 42b. Each sensor 42a, 42b has the sensor 42a,
Light emitting members 44a horizontally opposed to each other with respect to 42b,
44b is provided, and the sensors 42a and 42b detect light generated by the light emitting members 44a and 44b. When the woven rubber 12 hangs down to a position where the woven rubber 12 blocks the sensor 42b, the delivery roller 2 is moved so that the tension of the woven rubber 12 increases.
8, 30 and the driving force of the guide roller 36 are adjusted. Conversely, when the woven rubber 12 has risen to a position where the woven rubber 12 blocks the sensor 42a, the driving forces of the delivery rollers 28 and 30 and the guide roller 36 are adjusted so that the tension of the woven rubber 12 decreases.

As described above, the resin processing device 20 is provided with the woven rubber 1
By immersing the silicone rubber 22 in a stretched state by applying an appropriate tension in the longitudinal direction of the rubber 2, the silicone rubber 22 can sufficiently penetrate into the weave. In the drying furnace 34, the tension of the woven rubber 12 is released.
The silicone rubber 22 is solidified with the texture extended, and the woven rubber 12 does not lose its elasticity.

According to the rubber cord 10 of this embodiment, since the woven rubber 12 woven by the rubber thread 14 and the woven thread 16 is the core, the tear strength is high and the needle hole at the time of sewing is formed. Nor does it split from it. Further, when the silicone rubber 18 is provided around the woven rubber 12 and subjected to a high-temperature sterilization treatment, the silicone rubber 18 is directly subjected to heat, but the silicone rubber 22 has heat resistance and therefore has high expansion and contraction even after the sterilization treatment. Even if the rubber thread 14 of the woven rubber 12 is made of something other than heat-resistant rubber, the silicone rubber 2
2 and does not receive heat directly, so that sufficient elasticity is maintained. Furthermore, since the silicone rubber 22 has penetrated into the weave, the rubber cord 10 has no voids and has sufficient strength and elasticity. The clean room garment in which the elastic cord 10 is used for the cuffs and the hem is worn without any gaps on the body even after the autoclave treatment, and there is no fear that dust and bacteria may come out from the cuffs and the like, and is sanitary. Since the tear strength is high, there is no accident such as the rubber cord 10 being cut from a needle hole formed when the ring is sewn to fit a cuff or a hem.

The elastic cord is provided at the cuffs, ankles, and waist portions which are openings of the clothes, and may be provided at the waist portion of the coverall.

Next, a second embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. The rubber cord 46 of this embodiment is woven in a belt shape with a heat-resistant silicone rubber thread 48 and a woven thread 16 made of rayon or the like.

The rubber cord 46 of this embodiment is obtained by replacing a conventional rubber thread with a silicone rubber thread 48 and has the same effect as that of the above embodiment. It still has high elasticity.

The rubber cord of the present invention is not limited to the above embodiment, but may be changed as appropriate such as rubber thread and woven thread material. Any material may be used as long as the elasticity is not impaired by heat. This fluoro rubber has higher heat resistance than silicon rubber. Further, the shape of the rubber string may be a round string shape or the like in addition to the band shape.

[0022]

As described above, the rubber cord of the present invention, the method of manufacturing the same, and the garment maintain high elasticity even after heating, have high tear strength, and do not tear even if a needle hole is formed during sewing. The cleanroom garment using the elastic cords for the cuffs and the hem is hygienic because the cuffs and the hem maintain elasticity and adhere to the body even after autoclaving at high temperatures.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rubber cord according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a method for manufacturing the rubber cord of the embodiment.

FIG. 3 is a perspective view of a rubber cord according to a second embodiment of the present invention.

[Description of Signs] 10 Rubber string 12 Woven rubber 14 Rubber thread 16 Woven thread 18 Silicone rubber

Claims (5)

[Claims] 1. A woven rubber which is woven with a thin thread rubber and a thin woven thread and has elasticity in a longitudinal direction, and a heat-resistant rubber which is coated around the woven rubber and has elasticity is provided. Rubber strap to do. 2. The rubber cord according to claim 1, wherein the woven rubber is in a belt shape. 3. The rubber cord according to claim 1, wherein said heat-resistant rubber is silicone rubber. 4. A woven rubber which is woven with a thin thread rubber and a thin woven thread and has elasticity in the longitudinal direction is stretched by applying an appropriate tensile force in the longitudinal direction of the woven rubber, and a liquid state is formed around the woven rubber. A method for producing a rubber string, wherein the heat-resistant rubber is adhered and the heat-resistant rubber is solidified in a state where the tensile force of the woven rubber is released. 5. A woven rubber woven with a thin thread rubber and a thin woven thread and having elasticity in a longitudinal direction, and a rubber string provided around the woven rubber and provided with a heat-resistant rubber having elasticity, Clothes provided with this rubber cord in the opening or in the middle of the fabric.