The Conductivity of Anti-Static Cleanroom Clothing esd fabric
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 yarns are typically embedded during the weaving process (approximately 0.1-0.5% of the fabric weight). These conductive yarns typically appear as stripes or grid patterns on the 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. These fibers are used to impart durable antistatic/static dissipative properties.
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 commercially available, produced using two methods:
1. Organic polymer fibers (primarily polyamide or polyester)
a. Conductive additives, such as carbon black, are added during melt spinning
b. Conductive material is applied to the fibers after melt spinning.
In addition to the above products, the company also supplies anti-static stationery, anti-static coveralls, anti-static two-piece suits, latex nitrile gloves and other products.