Antistatic Conditions for ESD Fabrics
It is generally believed that wearing pure cotton work clothes can prevent the accumulation of static electricity in clothing, thus ensuring safety. However, this view is one-sided. This is only generally true when the relative humidity of the air is above 50%; when the relative humidity is relatively low, the charge on pure cotton products increases significantly. Experiments show that when the relative humidity is below 30%, the charge on pure cotton fabrics is comparable to that of polyester; and when the relative humidity is below 20%, the charge on cotton fabrics can even be higher than that of some synthetic fiber fabrics.
Therefore, in dry climates, it cannot be expected that pure cotton products can eliminate the hazards of static electricity in clothing under all circumstances. For these reasons, to effectively prevent the hazards of electrostatic discharge from the human body, operators must wear antistatic work clothes.