Anti-static fabric expertise
Anti-static ultra-clean fabric characteristics, selection criteria and identification methods Ultra-clean fabric characteristics, selection criteria and identification methods.
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 more and more micro, fine, fine and thin. In addition to the requirements for anti-static indicators, the production of large-scale and ultra-large-scale integrated circuits also imposes different requirements on the environmental cleanliness of the products produced. The latest technology in foreign countries has made the cleanliness of the production environment reach the level of Class1 (that is, no more than one dust particle larger than 0.3 microns in one cubic meter of space). This requires the operator to wear clothes in addition to anti-static properties, but also must have no dust, but also effectively block the tiny dust generated by the body's metabolism through the clothes into the clean environment. This requires the application of anti-static ultra-clean fabric. Since our country has not yet developed corresponding standards for clean workwear (including national standards, ministries or industry standards), there is no professional testing agency. At the same time, most end users lack the expertise in clothing and fabrics, so that the quality of the product is often affected by the selection of inappropriate fabrics. Therefore, the end user and the manufacturer of the clean clothes are instructed to fully and correctly understand the characteristics of the antistatic] ultra-clean fabric, reasonably select the applicable ultra-clean fabric, and master the simple and reliable identification method, which has improved the product quality of the microelectronics industry in China. Extremely important.
Anti-static and ultra-clean fabric characteristics
Antistatic super clean fabrics are often referred to as "conductive silk." In fact, this statement is not strict. Conductive silk can be divided into anti-static (ESD) and clean room (CleanRoom) according to its own technical characteristics. Only conductive silk suitable for clean room can be called Anti-static and ultra-clean fabric.
What is anti-static fabric?
The anti-static processing fabric can be called anti-static fabric. Antistatic processing methods for fabrics usually include:
1 fabric is post-finished with antistatic finishing agent;
2 fiber graft modification, blending and interweaving of hydrophilic fibers for the purpose of improving fabric moisture absorption;
3 blended or inlaid conductive fibers;
The mechanism of action of the first two methods is to improve the moisture regain of the fabric, reduce the insulation, and accelerate the electrostatic leakage. Therefore, if the processing effect is not durable or inconspicuous in a dry environment or after repeated washing, it is usually applied to a fabric for general clothing. Only the third method can solve the static problem of textiles permanently and efficiently, so it is widely used in the production of anti-static overalls. The fabric is post-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, anti-electric knitted underwear. In addition to the general technical standards for textiles, anti-static fabrics must also have good anti-static properties to meet the production and safety requirements. Technical requirements can refer to GB12059-89 "Professional fiber anti-static silk performance and test methods for electronic industry", GB/T12703-91 "Textile electrostatic test method".