How to test the anti-static clothing friction performance?

Anti-static clothing is designed using specialized anti-static and clean fabrics that are engineered to prevent the buildup of static electricity. These fabrics typically incorporate conductive fibers—either in the warp or weft—made from special polyester filaments. This construction ensures high efficiency, long-lasting anti-static properties, and effective dust control, while maintaining a thin and smooth texture. During production, a special overlock machine is used to minimize particle generation, ensuring the garments remain clean and suitable for sensitive environments.

Dust-free Velcro tapes are also incorporated to prevent contamination caused by hair loss, making the clothing ideal for use in cleanrooms and other controlled areas. When testing the friction performance of anti-static clothing, especially in small series of Wan Guan hardware grid systems, specific procedures must be followed to ensure accuracy and consistency.

Depending on the required cleanliness level, different styles of anti-static clothing are available, each incorporating conductive fibers to maintain electrical continuity. Some designs feature a double-layer structure, with the inner layer composed of conductive or anti-static ribs, which helps meet stringent dust-free standards in high-level clean environments.

Anti-static clothing is widely used across various industries, including microelectronics, optoelectronics, solar energy, pharmaceuticals, biotechnology, food processing, cosmetics, petrochemicals, and military applications. These sectors rely heavily on materials that can effectively manage static charges and maintain a high level of cleanliness.

The testing process for anti-static clothing involves simulating real-world conditions where friction may cause static buildup. Here’s how the test is conducted:

1. Place the anti-static clothing samples in a simulated wearing state (e.g., buttoned or zipped) into the friction device.
2. Run the instrument according to specified conditions.
3. After the operation, tilt the device so that the sample automatically enters the Faraday cup. Alternatively, use insulating gloves to remove the sample, ensuring it remains at least 300mm away from any object outside the cup.
4. Use a Lintel tube to measure the overall charge of the sample.
5. Repeat the process five times, with a 10-minute rest period between each trial. After each cycle, use a static eliminator to discharge both the sample and the standard cloth in the drum.
6. Take the average of the five measurements as the final result.
7. If the clothing has a lining, turn it outward and repeat the test procedure, recording all results in the report.

This method ensures accurate and reliable evaluation of the anti-static properties of the clothing, helping to meet industry standards and quality requirements.

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