Teach you how to choose anti-static fabrics
How to choose all kinds of anti-static products to ensure their quality? With the development of the electronics industry, petrochemical industry, and aerospace industry, people have put forward anti-static requirements for work clothes. With the miniaturization and high integration of electronic product design, the corresponding processing technology is becoming smaller, finer, finer and thinner. The production of large-scale and ultra-large-scale integrated circuits not only has certain requirements for anti-static indicators, but also puts forward different requirements for the environmental cleanliness of the produced products. The latest foreign technology has made the cleanliness of the production environment reach the level of Class1 (that is, there is no more than one dust particle larger than 0.3 micron in a cubic meter of space). This requires that the clothes worn by the operator must not only have anti-static properties, but also must be dust-free and can effectively block the tiny dust produced by human metabolism from passing through the clothes and entering the clean environment. This requires the application of anti-static ultra-clean fabrics. Since our country has not yet formulated corresponding standards for clean work clothes (including national standards, ministry standards or industry standards), there is no professional testing agency. At the same time, most end users lack professional knowledge in clothing and fabrics, so that the quality of products is often affected by the selection of inappropriate fabrics. Therefore, instructing end users and manufacturers of clean clothes to fully and correctly understand the characteristics of anti-static] ultra-clean fabrics, reasonably select suitable ultra-clean fabrics, and master simple and reliable identification methods, which are of great significance to improving the product quality of my country's microelectronics industry extremely important meaning.
Characteristics of anti-static ultra-clean fabrics
Anti-static ultra-clean fabrics are usually called "conductive silk". In fact, this statement is not strict. According to its own technical characteristics, conductive silk can be divided into anti-static (ESD) and clean room (Clean Room). Only conductive silk suitable for clean rooms can be called. It is an anti-static ultra-clean fabric.
What is anti-static fabric
Fabrics that have undergone anti-static processing can be called anti-static fabrics. The anti-static processing methods of fabrics usually include:
① The fabric is finished with an antistatic finishing agent;
② Fiber graft modification for the purpose of improving the hygroscopicity of fabrics, blending and interweaving of hydrophilic fibers;
③ Blended or embedded conductive fibers;
The mechanism of action of the first two types of methods is to increase the moisture regain of the fabric, reduce the insulation, and accelerate the leakage of static electricity. Therefore, if the processing effect is not durable or not obvious in a dry environment or after multiple washings, it is usually applied to ordinary clothing fabrics. Only the third method can permanently and efficiently solve the static electricity problem of textiles, so it is currently widely used in the production of anti-static work clothes. The fabric is finished with an antistatic finishing agent.
Anti-static fabrics can be woven fabrics, such as conductive silk, anti-static T/C fabrics, or knitted fabrics, such as anti-static knitted glove cloth, anti-static knitted underwear, etc. Anti-static fabrics (www.esd-safe.com) must not only meet the general technical standards for textiles, but also have good anti-static properties to meet the needs of product production and safety.