Antistatic fabrics can be divided into two categories of civil and industrial electrostatic protective clothing. Electrostatic protective clothing according to the end use can be divided into dust-free sterile work clothes, fireproof and explosion-proof work clothes, surgical clothing, safe operation clothing (such as electrostatic protective clothing worn by electrical workers at work, conductive clothing, etc.).

1, anti-static treatment of fiber

The fibers were treated by hydrophilic treatment with surfactants

The principle of action is that the hydrophobic end of the surfactant molecule is adsorbed on the surface of the fiber, and the hydrophilic polar group points to the space to form a polar surface, adsorb the water molecules in the air, reduce the surface resistivity of the fiber, and accelerate the charge escape. The surfactants used include ionizing, anionic and non-ionic types, among which cationic surfactants have the best antistatic effect, and high molecular weight non-ionic surfactants have the best antistatic effect and durability. The advantages of this method are simple and easy, and it is especially suitable for eliminating electrostatic interference in textile processing. The disadvantage is the poor durability of the antistatic effect, the surfactant is volatile, more resistant to washing, and does not show antistatic properties in low humidity environments.

Blending, copolymerization or grafting modification of fiber forming polymers were carried out

The same as the previous method is that hydrophilic monomer or polymer is added to the fiber forming polymer to improve the hygroscopic property, so as to obtain the antistatic property. In addition to the typical blending method of ordinary fiber forming polymer and hydrophilic polymer, there are also blending methods of adding hydrophilic polymer to form micro-polyphase dispersion system during polymerization. For example, when polyethylene glycol is added to caprolactam reaction mixture, polyethylene glycol is dispersed in the PA6 in a fibrillar form. At the same time, a small amount of hydroxyl group of polyethylene glycol also reacts with the hydroxyl group in aminocaprolic acid generated after caprolactam ring opening, which improves the durability of antistatic properties.

In addition, copolymerization of hydrophilic polar monomers to the main chain of hydrophobic synthetic fibers, such as embedding polyethylene glycol in PET macromolecules, can also improve the hygroscopic and antistatic properties of the fibers.

The grafting of chemical initiation, thermal initiation, high-energy ray and ultraviolet irradiation on the fiber surface can effectively improve the hygroscopic property of synthetic fiber, and the amount of hydrophilic monomer is much less than other methods, and the durability is good. This kind of antistatic fiber still accelerates the leakage of charge by improving the hydrophilicity of the fiber, so in a dry environment with relative humidity below 40%, the antistatic performance of the fiber will be lost.

2, production of antistatic yarn

Mixing a small amount of conductive staple fiber into the spinning can produce anti-static yarns, while reducing or even eliminating the static problems existing in the spinning process. In spinning, common textile fibers are used as the main fiber, with a small amount of conductive fibers mixed in. The amount of conductive fiber mixed is determined by the end use and cost of the product. A large number of experiments have shown that when a small amount (a few percent) of organic conductive fiber is mixed into the yarn, the resistivity of the yarn will be significantly reduced (and the conductivity will be greatly improved).

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Hai'an County Qinfeng Chemical Fiber Co., Ltd. specializes in production and sales：polypropylene staple fiber, Polyester Staple Fiber, functional polypropylene short fiber, functional polyester staple fiber, hydrophilic polyester staple fiber,  polypropylene, PP staple fiber, polyester staple fiber.