Principles for purchasing anti-static ultra-clean fabrics
1. Choose fabrics with relatively small resistance;
2. If the resistance is the same, choose fabrics with stable resistance value;
3. Pay attention to whether antistatic agent is added to the fabric during finishing (applicable to conductive silk with conductive fibers added only in the warp direction, commonly known as striped cloth). The method is to use a surface resistance tester to measure the resistance in the warp and weft directions respectively. If they are the same, it means that antistatic agent is added. Then the measured resistance does not represent the real level.
4. Look at the microstructure: Use a high-power magnifying glass to look at the quality of the fabric surface, compare the size of the gaps between the fibers (related to the dust filtration rate), see if there are attachments on the fiber surface (related to the amount of dust), and see if the fibers are neatly arranged and consistent in tightness (if the tightness is inconsistent, the loose fibers are easy to be abraded during wearing and washing, and dust will be generated when worn later).