The Conductivity of Anti-Static Cleanroom Clothing Fibers
The conductivity of a fiber depends on the type, amount, and placement of the conductive material. Conductive inorganic fibers (such as stainless steel fibers) must be spun before being woven into fabric. Carbon fiber is the most commonly used conductive material in anti-static cleanroom clothing, with copper sulfide, copper iodide, and other metal oxides also commonly used. The conductive material can be applied to the fiber's exterior using a coating process, incorporated into the fiber through composite spinning, or distributed partially on the exterior and partially within the fiber, creating a dual-medium structure. The conductive material is typically added in amounts between 3% and 30%.
Conductive yarn is typically embedded during the weaving process (approximately 0.1-0.5% of the fabric weight). This conductive yarn typically appears as a stripe or grid pattern on the waste fabric (3-10mm, depending on the end use). Anti-static cleanroom clothing is primarily made from man-made filaments. These fabrics can be knitted, woven, or spunbonded. Polyester filaments are currently the most common raw material for cleanroom fabrics. This imparts durable antistatic/static dissipative properties to the fabric.
These fibers are typically produced by adding a small amount of conductive material during the manufacturing process. Currently, many types of anti-static fibers are available on the market, produced using two production methods:
1. Organic polymer fibers (primarily polyamide or polyester)
a. Conductive additives, such as carbon black, are added during melt spinning.
b. Conductive materials are post-treated after melt spinning.
In addition to the above products, our company also offers anti-static coveralls, anti-static two-piece suits, and latex nitrile gloves.