Anti-static clothing refers to work clothes that are sewn with anti-static fabric as a fabric to prevent static build-up on clothing. The antistatic fabric is a fabric obtained by mixing conductive fibers or antistatic synthetic fibers or a mixture of the two at substantially equal intervals or evenly during weaving. The conductive fiber is a general term for fibers made of a conductive material or a subconductive material using metal or organic materials in whole or in part, and has a volume resistivity ρv ~ between 104 and 109 Ω/cm. According to the distribution of the conductive component in the fiber, the conductive fiber can be classified into three types: a conductive component uniform type, a conductive component covering type, and a conductive component composite type. At present, most of the anti-static fabrics are made of conductive fibers, especially the conductive component composite type, that is, the composite fiber is used most.
The anti-static overalls made of conductive fibers are added to the chemical fiber fabric, and the power-dissipation is based on two mechanisms of charge leakage and neutralization. When grounded, the static electricity on the fabric is neutralized by the corona discharge of the conductive fibers, and can also be discharged to the ground via the conductive fibers; when not grounded, the electricity is dissipated by the weak corona discharge of the conductive fibers. This is why electronics factories, semiconductors, and optical factories wear anti-static problems.
Anti-static clothing is mostly used in workshops with high cleanliness and purification rooms. Therefore, anti-static clothing itself has high requirements for cleanliness. The performance of anti-static clothing is excellent and the effect is very good, which is reflected in the following aspects. .
1. It has anti-static function to prevent clothes from being dusted and difficult to clean. At the same time, this anti-static performance must be durable and efficient, and will not be attenuated by daily washing and friction.
2, the fabric itself does not dust, because it is worn in the clean room, so the fabric can not be used as a source of clean room dust, which determines that only chemically synthesized long fibers can be used to produce cotton, hemp, silk, etc. Natural fibers cannot be applied to ultra-clean fabrics.
3, to have good dust filter, clean room dust particles mainly from indoor flowing air and active human body. When the equipment conditions are determined, improving the cleanliness means that the tiny dust generated by the human body is controlled to the maximum extent in the clothes, and it is not allowed to be released into the air. This is the so-called highest dust filtration rate. However, increasing the dust filter rate is at the expense of fabric and breathability, so loose fabrics are not suitable for use in clean rooms.
Anti-static clothing is not only very demanding on its own, but also very strict on cleaning. Specifically, the dust-free requirements of the working point should be consistent with the cleaning level. Otherwise, it is unqualified. The specific cleaning process is Do not introduce too much here, pay attention to related articles.