What are the methods for detecting anti-static clothing fabrics?
If you want to judge whether an anti-static clothing is qualified, first check the fabric, which is also the key to determine the anti-static performance! The reason why anti-static clothing can prevent static electricity is because of the black conductive thread on the clothes. The tighter and more obvious the conductive thread, the better the effect. For some other fabrics, the staff will lose their silk and hair after wearing them a few times. There are hidden quality risks, and the performance of anti-static clothing made of such fabrics is also very poor. At this time, the static value on the clothes will be high, which will cause dust adsorption, and a large amount of dust will affect the quality of the produced products. This kind of anti-static clothing encounters professional GMP certification inspection, 80% is unqualified!
Therefore, the material of anti-static clothing: it is recommended that you prefer polyester cloth inlaid conductive yarn!
The second is the performance index of anti-static clothing:
1. Test with a professional electrostatic tester: the friction voltage of the anti-static clothing should be within 200V!
2. After each friction of the anti-static clothing generates a voltage, the voltage must be reduced to less than 100V within 3 seconds!
3. The surface resistance of anti-static clothing is 10^6~10^9Ω!
Anti-static clothing fabrics are made of metal conductive fibers or composite conductive fibers and fabrics through a special process. Because the conductive fibers are woven into the fabric and integrated with the fabric, it has long-lasting and efficient anti-static properties, and several methods for detecting the authenticity of anti-static clothing.
1. Resistance measurement: Use a surface resistance tester to measure the warp and weft resistances of the fabrics and compare them;
2. Check the conductive fiber: Conductive fiber is the key raw material in the anti-static ultra-clean fabric. Checking the conductive fiber is to see whether the conductive fiber is added according to the specification and what kind of conductive fiber is added;
3. The inspection method is: carefully cut the fabric along the edge of the black conductive fiber with scissors, and separate the black conductive fiber. The resistance tester measures the resistance of the separated conductive fibers. By removing several pieces in a row, you can basically judge whether each black silk in the fabric contains conductive fibers. (The conductive silk is made of carbon organic conductive fibers, which are black or gray, generally around 20D, between 1F and 6F. In order to meet the strength requirements during weaving, an ordinary black or white polyester is required. fiber).
Anti-static clothing is a dust-proof tool that must be worn in flammable and explosive places. Anti-static fabrics are divided into two types: blended type and insert type. The blended type is made of stainless steel fiber and cotton, polyester and other fibers. The protective products made of this kind of fabric can effectively avoid the accumulation of electric charges, so that the electric charges can be discharged or leaked in time, so as to avoid the occurrence of explosion accidents. It is an ideal choice for military industry, precision instruments, aerospace and other fields.