The production principle and performance of anti-static fabrics (3)

The production principle and performance of anti-static fabrics (3)

5. Selection of anti-static work clothes

(1) Technology and performance of anti-static workwear

Relevant technical and performance indicators of anti-static workwear can be found in the national standard “Removal of Static Workwear” (GB 12014-1989). 　

(2)The use and management of anti-static work clothes

(3)Static-removing work clothes are not meant to be worn once and for all. If worn improperly and washed many times, its static conductive function may be reduced and it cannot meet safety requirements. Therefore, the following matters should be paid attention to when wearing and storing:
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(1) All work clothes should use anti-static fabrics, and linings are generally not used. When linings must be used, the exposure of the lining should not exceed the inner surface of the entire work clothes. 20% of the area. 　

(2) Different levels of anti-static fabrics and anti-static work clothes should be selected according to the electrostatic sensitivity of different cleaning objects in different places.
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(3) It is prohibited to attach or wear any metal objects on static elimination work clothes.
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(4) It is not allowed to put on or take off work clothes at the site where static-sensitive products are operated (changes should be made in the designated locker room). Work clothes All buttons should be buttoned, and the clothes should not be in a state close to being undressed.
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(5) Cleaning of work clothes should be carried out by simple methods. Machine washing or hand washing can be done. The water temperature should be between 30-600℃. Use should be avoided. Work clothes are subject to strong mechanical and chemical cleaning operations, and the soaking time should not exceed 3 hours.
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(6) Ironing is the same as ordinary cotton fabrics, polyester-cotton fabrics, and can be used at temperatures above 40℃ and below 85℃. Printing parts cannot be used. Iron directly with the iron. 　　

(7) Before wearing the anti-static work clothes purchased in batches, a few pieces should be randomly selected to test the charge level. After a certain period of wear, any abnormality If the wearer feels an electric shock when taking off his clothes, he should be retested.
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(8) When wearing anti-static clothing, it must be worn in conjunction with the anti-static shoes specified in GB 4385. Wear anti-static shoes and conductive shoes Insulating thick woolen socks and insulating insoles should not be worn at the same time. The place where anti-static shoes are used should be on the anti-static floor, and the place where conductive shoes are used should be on the conductive ground. In addition, during the wearing process, it should generally not exceed 200h. Perform a resistance test. 　

(9) Anti-static work clothes must be replaced strictly according to the use cycle of labor protection products to prevent their anti-static function from weakening after repeated cleaning and not being able to meet the requirements. Requirements. Specific requirementso:p>

　1． Anti-static work clothes must be worn in conjunction with the anti-static shoes specified in GB4385.
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2. It is prohibited to attach or wear any metal objects on anti-static clothing. Tools that need to be carried with you should have anti-static and anti-spark functions; metal tools should be placed in the anti-static work clothing belt, and metal parts are prohibited from being exposed.
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3. It is prohibited to put on or take off static electricity removing work clothes in flammable and explosive places.
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4． Do not wear anti-static work clothes in strong electromagnetic environments or areas with high-voltage bare wires nearby

11. Service life

The static-removing overalls are damaged and the sutures are off If it is broken, mildewed, the conductive fiber is broken, or the cleaning resistance time specified by the anti-static level has been reached, it should be scrapped in time. The user should submit samples for inspection of anti-static work clothes that have reached half of their useful life or have been stored for one year. Products that have lost their anti-static properties after testing should be scrapped in batches in a timely manner to ensure that the products are qualified for use