How to distinguish the anti-static performance of clean ESD clothes
If the dust-free ESD clothing worn by workers in a clean room is effective in preventing dust, its anti-static performance is also very important. Because the anti-static performance is good, clothes are not easy to vacuum.
In electronic operations, static electricity can damage tiny circuits. When people move in a clean room, their dust-free clothing will generate friction static electricity with the seat, workbench, underwear and skin worn inside. The dust-free clothing fabric is sandwiched with continuous conductive fibers made of conductive materials, which can effectively conduct and discharge static electricity.
Another way to measure the antistatic properties of fabrics is to observe the decay time of static electricity on the fabrics. This method is better than measuring conductivity. First generate a charge with a known voltage on the fabric, and then measure the time it takes for the voltage to drop to 1/2 or 1/10 of its original value. The time can vary from less than 0.1 seconds to more than 10 minutes. The shorter the time, the better the anti-static effect of the fabric.
Measure resistivity or conductivity; measure the attenuation of voltage; measure the voltage generated when a person wears a clean suit. There are several methods for testing the surface resistivity of fabrics. The lower the resistance, the better the fabric, because the lower the resistivity, the easier it is for static electricity to be conducted away.