What is the role of anti-static work clothing?
Static electricity is inextricably linked to our daily lives and work, and it directly or potentially poses varying degrees of harm to humans. According to expert analysis, most fires in workplaces such as those involving explosives, chemicals, pharmaceuticals, and petroleum are caused by static electricity generated by human activity exceeding safety limits, leading to accidental discharges and sparks. The generation of static electricity is closely related to the material of the clothing worn, the intensity of activity, the type of tools used, the conductivity of the ground, and the ambient temperature and humidity. For a long time, people have employed methods such as grounding, shielding, and neutralization to eliminate the hazards of static electricity. Anti-static work clothing provides static shielding, eliminating or mitigating the effects of static electricity.
Preventing static electricity accumulation involves dispersing or dissipating static electricity from objects as quickly as possible through a specific channel. Therefore, anti-static work clothing should be made from fabrics containing highly conductive fibers. Currently, there are three main types of anti-static fabrics.
1. Exploiting the humidity dependence of the anti-static effect. Antistatic finishing, which involves adding hydrophilic polymers (surfactants) during spinning, allows the fabric to absorb moisture from the air, reducing surface impedance, minimizing static electricity accumulation, and effectively dissipating static electricity from the human body.
2. Utilizing the conductivity of fibers. Antistatic agents and carbon black particles are added to the raw fiber material to create conductive fibers. Through blending, interweaving, braiding, interlacing, or interweaving, the conductivity of the fibers or fabric is enhanced, resulting in antistatic fabrics that dissipate charge and prevent static electricity accumulation.
3. Blended fabrics are created by incorporating a certain amount of metal fibers into the fibers. These fabrics offer excellent stability and washability.
Antistatic Work Clothes (GB12014-1989), listed in the Catalogue of Special Labor Protection Products, are made from antistatic fabrics to prevent static electricity accumulation in clothing. They are suitable for use in fire or explosion hazardous areas. The manufacturing process for these antistatic fabrics involves interweaving antistatic fibers, either partially or entirely made of metallic or organic conductive materials or synthetic fibers, or a combination of both, at roughly equal intervals during the weaving process.