Tips: Nantong Bao Jian: The difference between ultra-clean fabrics and ordinary anti-static fabrics in anti-static clothing

Anti-static and ultra-clean fabrics used in anti-static clothing are often called “conductive silk”. In fact, this argument is not strict, according to its own technical characteristics of conductive silk can be divided into suitable for static electricity (ESD), and apply to the clean room (Clean Room), only for the clean room of conductive silk can be called Anti-static clean fabric.

What is anti-static fabric? After anti-static processing fabrics can be called anti-static fabrics. Fabric antistatic processing methods usually have:

1 fabric with antistatic finishing agent for finishing;

2 Graft modification of fibers, blending and interweaving of hydrophilic fibers for the purpose of improving the moisture absorption of fabrics;

3 blended or embedded conductive fibers;

The mechanism of action of the first two methods is to increase the moisture regain, reduce the insulation, and accelerate the electrostatic leakage. Therefore, if the processing effect is not durable or insignificant in a dry environment or after multiple washings, it is usually applied to ordinary clothing fabrics. Only the third method can solve the electrostatic problem of textiles in a lasting and efficient manner, so it is widely used in the production of anti-static work clothes. The fabric is finished with an antistatic finish.

Anti-static fabrics can be woven fabrics, such as conductive silk, anti-static T/C fabrics, or knitted fabrics, such as anti-static knitted gloves cloth, anti-electric knitted underwear. Anti-static fabrics must not only meet the general technical standards for textiles, but also must have good anti-static properties to meet the needs of product production and safety. Technical requirements can refer to GB12059-89 "Synthetic fiber for electronic industry anti-static silk performance

The difference between ultra-clean fabrics and ordinary anti-static fabrics in anti-static clothing

The difference between anti-static and ultra-clean fabrics and ordinary anti-static fabrics lies in the concept of "clean". Anti-static clean fabric must have the following three characteristics:

With anti-static function: static electricity will absorb dust, and the adsorption of dust in the wind when the shower is not easy to blow away. Therefore, the primary feature of anti-static clean fabrics is anti-static properties. At the same time, this anti-static property must be long-lasting, efficient, and will not be significantly attenuated by daily washing and friction.

The fabric itself is not dusty: As it is worn in a clean room, it is required that the fabric cannot become a source of dust in the clean room, which determines that the ultra-clean fabric can only be produced with chemically synthesized long fibers. However, natural short fibers such as cotton, hemp, and silk cannot be used in super-clean fabrics, although these materials can make the fabric more attractive. At the same time, the selected chemical fiber filaments must also strictly control the amount of dust generated. In general, fully extensible polyester filaments are not suitable for weaving anti-static and ultra-clean fabrics. Because the addition of matting agents in the production of polyester - titanium dioxide will become a source of pollution.

The fabric should have good dust-filtering properties: The dust in the clean room mainly comes from the air flowing in the room and the human body moving indoors. When the condition of the equipment is determined, improving the degree of cleanliness means that it is required to maximally control the tiny dust generated by the human body in the clothing and let it pass through the fabric into the air. This is the so-called high dust filter of the fabric. Increasing the dust filter rate is at the expense of fabric permeability, so knitted fabrics and woven fabrics that are relatively loosely woven are not suitable for use in clean rooms.