JP3131639U - Antistatic clothing - Google Patents

Abstract

An object of the present invention is to provide an antistatic garment that is excellent in antistatic properties, durability, and wearability and can be obtained relatively inexpensively.
SOLUTION: A fabric having a specific resistance of 10 ⁷ L / cm or less in a dry state by weaving or weaving conductive yarn into a checkered pattern,
As a series of belt-like fabrics that have a length that extends from the cuffs through the armholes to the bottom of the trousers, this cloth is connected to the bottom of the sleeve, between the front and back of the garment, and along both sides of the trousers. Sewing
An antistatic garment characterized by conforming to international standards (IEC61340-5-1) by discharging static electricity generated at cuffs and the like through a belt-like fabric to the bottom of the pants.
[Selection] Figure 1

Description

The present invention relates to anti-static clothes suitable as work clothes for workers who work in environments where fires and explosions are likely to occur, and workers who handle electrical components in clean rooms and the like, and in particular, IEC 61340-5-1 international standards. We intend to provide compatible antistatic clothing products.

Fabrics made of synthetic fibers are generally suitable for work clothes because they are generally superior in strength and durability, produce less fiber dust, and dry quickly even after washing compared to fabrics made of natural fibers. . In particular, fabrics using filament yarns are suitable for work clothes for workers who work in a clean environment because they hardly generate fiber waste.
However, fabrics made of synthetic fibers have the drawback of being easily charged, and unless they are given antistatic properties, that is, antistatic properties, sparks due to static electricity are likely to occur, and workers working in environments where fires and explosions are likely to occur. It cannot be used for work clothes such as workers who handle electrical parts in a clean room.
Further, even a fabric made of natural fibers is charged in a low humidity atmosphere, and therefore, it may be necessary to impart antistatic properties when used in the above-described work clothes.

Therefore, as a method of imparting antistatic properties to a fabric made of synthetic fibers,
a. A method of blending a hydrophilic polymer or the like with a synthetic fiber, or using a modified fiber having a hydrophilic group introduced,
b. A method of attaching a water-absorbing substance such as a hydrophilic polymer to a synthetic fiber or fabric by post-processing;
c. Conductive yarns, for example, yarns made of conductive fibers such as metal fibers and carbon fibers, or yarns made by combining or twisting these yarns with synthetic fibers or natural fibers, mixed spinning, composite spinning, coating methods or electroless methods Conductive fibers obtained by chemical treatment called plating, that is, yarns made of conductive synthetic fibers mixed with conductive substances such as metals, conductive metal compounds, carbon black, and conductive metals, or attached side-by-side or around the entire circumference, Or a method of weaving or knitting a yarn made of synthetic yarn or natural fiber or a yarn made of twisted yarn at appropriate intervals,
d. There are methods such as applying a conductive paint to a fabric, attaching a conductive film, or providing a film of metal or the like by vapor deposition or sputtering.

Of these, a. This method is difficult to obtain a sufficient antistatic effect.
b. The method of a. Similar to the method, the antistatic effect is difficult to obtain, and the antistatic control is likely to be lowered by repeated washing or the like.
c. In this method, the conductive fibers and the conductive fibers have good conductivity, but the cut fabrics must be joined by sewing or the like to form clothes, and at that time, the conductive yarns are also connected. It is difficult to join together.
d. In this method, providing a coating of metal or the like has poor durability of the coating against washing or the like.

Next, the prior art related to antistatic clothing is examined.
1) In Japanese Utility Model Laid-Open No. 1-113612 (see Patent Document 1), a clothing body is formed of a dustproof cloth containing conductive yarn, and is electrically conductive in the longitudinal direction over at least the body side of the upper garment portion and the pants side of the pants portion. A dust-proof garment is shown in which a tape-like conductive cloth having good properties is sewed and a footrest portion made of a conductive cloth is sewn on the bottom of the trouser part.
2) In Japanese Patent Publication No. 6-53964 (see Patent Document 2), a fabric in which conductive yarn is woven or knitted at an appropriate interval is mainly used, and a fabric having a conductive layer on at least one side of a woven or knitted fabric is partially The anti-static garment is characterized in that it is formed by use and the connection between the two fabrics is made by superposition where the conductive yarn and the conductive layer are in contact with each other.
Japanese Utility Model Publication No. 1-136112 Japanese Patent Publication No. 6-53964

However, in any of the above cases, when the antistatic garment is sewn using the cloth which is made conductive by weaving or knitting the conductive yarn at an appropriate interval, the sleeve, the body, the trousers and the like are separated from each other. And connected them by sewing them to make anti-static clothes.
In that case, no matter how much each part is made of conductive fabric, it is necessary to connect the sleeve and the body with armholes or connect the body and trousers with the waist part in the conventional method, In this case, there was a problem that the clothes were charged due to the lack of conductivity.

This invention was made to solve the above-mentioned problems of the conventional example, and aims to provide anti-static clothing that is excellent in anti-static properties, durability, and wearability, and that can be obtained at a relatively low cost. To do.

That is, the antistatic garment of the present invention is a fabric having a specific resistance of 10 ⁷ liters / cm or less in a dry state by weaving or knitting conductive yarn in a checkered pattern,
As a series of belt-like fabrics that have a length that extends from the cuffs through the armholes to the bottom of the trousers, this cloth is connected to the bottom of the sleeve, between the front and back of the garment, and along both sides of the trousers. Sewing
It is characterized by conforming to the international standard (IEC61340-5-1) by transmitting static electricity generated at the cuffs and the like to the bottom of the pants through the belt-like fabric and discharging it.

The antistatic garment according to the present invention is characterized in that at least the front body and the front side of the pants are sewn with a series of conductive fabrics.

試料１：導電糸の織り込み編み込みを４ｍｍ間隔の格子縞としたもの
試料２：導電糸の織り込み編み込みを４ｍｍ間隔の経糸からなる縦縞としたもの
試料３：導電糸の織り込み編み込みを８ｍｍ間隔の経糸からなる縦縞としたもの
試料４：導電糸の織り込み編み込みを８ｍｍ間隔の格子縞としたもの
＊試験方法
試験室の温湿度：２４．５℃、２３％ＲＨ
デジタル超高抵抗微少電流計
：ＡＤＶＡＮＴＥＳＴ R8340A Ser．13030135（2006.2校正）
測定治具（レジスティビティ・チャンバ）
：ＡＤＶＡＮＴＥＳＴ R12702A Ser．110120113
JIS K6911に準拠した測定装置を用い測定した
印可電圧 100V １分間印可した後にサンプルの両面を測定
The conductive yarn of the fabric containing the conductive yarn used for the antistatic garment is the conductive yarn as described above, and has an electric resistance of 1 cm in length, that is, a specific resistance of 10 ⁷ L / d in a dry state. A conductive yarn of cm or less is preferably used. The weaving and weaving of the conductive yarn into the fabric needs to be both warp and weft checkered.
Table 1 shows the specific resistance when both the longitude and latitude are striped, and when both the longitude and latitude are striped.

Sample 1: Conductive yarn weaving and knitting made into lattice stripes with a spacing of 4 mm Sample 2: Conducting yarn weaving and weaving into vertical stripes consisting of warps with a spacing of 4 mm Sample 3: Conducting yarn weaving and knitting consisting of warps with an interval of 8 mm Vertical stripes Sample 4: Conductive yarn weaving braids with 8 mm spacing * Test method Temperature and humidity in test room: 24.5 ° C., 23% RH
Digital ultra-high resistance microammeter: ADVANTEST R8340A Ser. 13030135 (2006.2 calibration)
Measuring jig (resistivity chamber)
: ADVANTEST R12702A Ser. 110120113
Measured using a measuring device compliant with JIS K6911 Applied voltage 100V Measure both sides of sample after applying for 1 minute

The density of the conductive yarn is preferably as high as possible within the range where the wearability does not deteriorate from the antistatic side, but considering the cost, the conductive yarn having a preferable specific resistance as described above is preferably used. When used in a checkered pattern, it can be used at a density of 2 or more per 1 cm width.
As yarns other than the conductive yarns, polyester and nylon filament yarns and spun yarns, polyester and nylon staples and rayon staples, blended yarns such as cotton, and other filament yarns and spun yarns can be used, especially modified fibers. Antistatic polyester filament yarns and antistatic nylon filament yarns made of are preferably used.

The fabric provided with the conductive layer as described above is used as a series of strip-shaped fabrics by being sewn into a tie-like garment along the lower side of the sleeve, between the front and back body parts, and both sides of the pants.
Of course, the sleeve portion and the body portion, and the body portion and the trouser portion may be integrated and sewn using a series of belt-like fabrics.

According to this device, an antistatic garment excellent in antistatic, durability and wearability can be obtained at a relatively low cost.
In addition, the antistatic garment made using the fabric having conductivity is a series of belt-like fabrics even if the density of the conductive yarn of the fabric containing the conductive yarn does not decrease the wearability and does not increase the cost. Excellent anti-static performance by sewn into a tie-like garment along the underside of the sleeve, between the front and back body, and along both sides of the trousers, and does not degrade wearability or inferior in durability Performance.

Furthermore, according to the present invention, as a series of belt-like fabrics, the range of movement of the sleeve portion is greatly expanded by sewing to the tie-like garment along the lower side of the sleeve, between the front and back body, and along both sides of the pants. It has been found.
That is, in the antistatic garment by sewing, the movable range of the sleeve portion is about 90 ° (up to almost horizontal), whereas in the antistatic garment by sewing of the present invention, the movable range of the sleeve portion is about 180 °. It became possible to provide anti-static clothing that was extremely easy to work with (up to almost vertical).

Hereinafter, the antistatic clothes of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing an embodiment of the antistatic cloth according to the present invention, and FIG. 2 is a side view thereof.

In FIG. 1 and FIG. 2 showing one embodiment of the antistatic garment of the present invention, the antistatic garment 11 is composed of a sleeve portion 13, a body portion 14 and a trouser portion 15. The fabric 12 is sewn.
Incidentally, the fabric 12 had a specific resistance of 10 ⁷ L / cm in a dry state.

Further, the antistatic garment 11 of the present invention has a series of conductive fabrics 20 having a length extending from the cuffs to the sleeve portions 13 and the arm holes 16 to the body portion 14 and below the trouser portion 15. Is sewn. That is, the belt-like fabric 20 is sequentially sewn into the tie-like garment along the lower side of the sleeve portion 13, between the front and rear body portions 14, and both sides of the trouser portion 15.
Therefore, a series of belt-like fabrics 20 are formed from the cuffs through the sleeve part 13 and the arm hole 16 to the body part 14 through the waistband 17 to the bottom of the trousers part 15, and a series of static electricity that is likely to be generated at the cuffs. That is, the discharge occurs from the bottom of the pants portion of the tie-like clothes via the fabric 20.

In any case, the antistatic garment 11 is divided at each part of the armhole 16 and the waistband 17 between the sleeve part 13 and the body part 14, the body part 14 and the trouser part 15. Since the fabric 20 is not divided at each part of the armhole 16 and the waistband 17, static electricity that is likely to be generated at the cuffs is connected to the trouser portion 15 of the tie-like clothes via the strip-shaped fabric 20. It reaches to the bottom and from there it is discharged to the ground plane.

The width of the belt-like fabric 20 is preferably in the range of about 25 to 28 cm, although it depends on the size of the antistatic clothing 11. By the way, when the front body part 14 and the trouser part 15 are connected in series, and the back body part 14 and the trouser part 15 are connected by sewing, if the waistline is 180 cm, about 60 cm is in the upper and lower sides of the waistband 17, The width divided up and down can be greatly reduced.
In the figure, 18 is a fastener provided in the front body portion 14.

The conductive yarn-containing fabric 12 and the belt-like fabric 20 are made of a fabric in which conductive yarns are arranged in a lattice shape.
As specific examples of the conductive yarn-containing fabric 12 and the belt-like fabric 20, conductive fibers in which conductive carbon is coated on nylon monofilament (22de) and polyester processed yarn (75de / 72 fil) are twisted (twist number 200T / m). A plain woven fabric can be obtained by using conductive threads in a grid pattern at intervals of 4 mm, and this woven fabric can be processed by a normal finishing method.

＊IEC61340-5-1/TR2 Ａ.３
試験室の温湿度：２３℃、２５％ＲＨ
印加電圧：100Ｖ
プローブ間距離：0.30ｍ（縫い目を挟む）
プローブ：JIS Ｃ 2170規定のもの
洗濯処理：JIS Ｌ 0217 103法５回繰返し後、注水すすぎ20分、タンブル乾燥

表２に見るように、一連とした前記帯状布帛２０を、袖口から袖部分１３、アームホール１６を通って身頃部分１４からズボン部分１５の下まで達するよう縫製した場合は、制電性が著しく向上する。 The conductive yarn-containing fabric 12 was prepared in each pattern of the sleeve portion 13, the body portion 14 and the trouser portion 15, and the surface leakage resistance when each was simply connected was measured.
Further, the surface leakage resistance was measured when the belt-like fabric 20 in a series was sewn so as to reach from the cuff to the sleeve portion 13 and the arm hole 16 to reach from the body portion 14 to the bottom of the trouser portion 15. At that time, the front body part 14 and the trouser part 15 were also made of a series of materials.
Furthermore, the residual potentials after two seconds were measured by the decay method of USA Federal Test Method Standard No. 101B Method 4046 for both of the above, and antistatic properties were compared.
The measurement results are shown in Table 2.

* IEC61340-5-1 / TR2 A.3
Temperature and humidity of test room: 23 ° C, 25% RH
Applied voltage: 100V
Distance between probes: 0.30m (with stitches)
Probe: JIS C 2170 stipulated Washing treatment: JIS L 0217 103 method repeated 5 times, rinsed with water for 20 minutes, tumble dry

As shown in Table 2, when the strip-shaped fabric 20 is sewn so as to reach from the cuffs to the sleeve part 13 and the arm hole 16 so as to reach from the body part 14 to the bottom of the trouser part 15, the antistatic property is remarkably improved. To do.

According to this device, clothes with excellent anti-static properties, durability, and wearability can be obtained at a relatively low cost. Therefore, workers working in environments where fires and explosions are likely to occur, and handling electrical components in clean rooms, etc. It can be used for any purpose as long as it is a garment that requires an antistatic effect, as well as a garment for a worker or the like.

It is a front view which shows one Example of the antistatic clothes of this device. It is the side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Antistatic clothes 12 Conductive cloth 13 Sleeve part 14 Body part 15 Trouser part 16 Armhole 17 Waist band 18 Fastener 20 Belt-like cloth

Claims (2)

A cloth having a specific resistance of 10 ⁷ rubles / cm or less in a dry state by weaving or knitting conductive yarn in checkered pattern,
As a series of belt-like fabrics that have a length that extends from the cuffs through the armholes to the bottom of the trousers, the fabrics are joined together in sequence under the sleeves, between the front and back of the sleeves, and along both sides of the trousers. Sewing
An antistatic garment characterized by conforming to international standards (IEC61340-5-1) by discharging static electricity generated at cuffs and the like through a belt-like fabric to the bottom of the pants. The antistatic garment according to claim 1, wherein at least the front body of the cover-like garment and the front side of the pants are sewn with a series of conductive fabrics.

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