Anti-static mechanism and method in anti-static clothing
2021-06-10 15:48 | writer: admin
The antistatic mechanism and method of antistatic clothing can be summarized as: reducing the generation of electric charge, accelerating the leakage of electric charge, and neutralizing the static charge generated. From the causes of static electricity, the mechanism and influencing factors of textile antistatic, there are mainly the following methods for textile antistatic:
(1) Add antistatic agent in the finishing process of yarn or fabric
This method is suitable for various fiber materials. After padding, dipping, baking, etc., the antistatic agent is adhered or cross-linked on the fiber or fabric. The mechanism of action is to reduce the friction coefficient between the fibers, improve the moisture absorption of the fiber, or ionize the fiber surface to inhibit Reduce the generation of static charge and achieve the purpose of antistatic.
The antistatic agent used is divided into cationic, anionic and nonionic according to ionicity. Among them, the cationic antistatic effect is the best, the anionic has the best durability, and the nonionic is the most widely used.
The advantages of this method are: simple and easy to implement, low cost, especially suitable for eliminating electrostatic interference in the textile processing process, and the treated fabric also has the functions of moisture absorption, antifouling, and no dust absorption.
The shortcomings are: poor durability of antistatic effect, volatile surfactants, less resistant to washing, and poor antistatic effect in a low-humidity environment.
(2) Blending, copolymerizing or grafting modification of fiber-forming polymers
①Most synthetic fibers have poor conductivity. Hydrophilic monomers or polymers can be added to the fiber-forming polymer to improve moisture absorption and make the fiber obtain antistatic properties. The mechanism and advantages and disadvantages are the same as the surface treatment of the fabric.
②Using copolymerization or graft polymerization to polymerize hydrophilic polar monomers onto the main chain of hydrophobic synthetic fibers. For example, embedding polyethylene glycol in PET macromolecules can also improve the moisture absorption and antistatic properties of the fibers. .
This method allows the fiber and fabric to maintain the original style and mechanical properties, and at the same time have washing resistance and long-lasting antistatic properties, but it has poor alkali resistance and high cost. Moreover, the antistatic agent is mixed with other additives. It is prone to problems when used.
(3) Blended or interwoven antistatic yarn
A small amount of conductive short fibers are mixed into the spinning to produce antistatic yarns, and at the same time, it can reduce or even eliminate static electricity problems in the spinning process.
Conductive fibers include metal fibers (stainless steel fibers, copper fibers, aluminum fibers, etc.), carbon fibers and organic conductive fibers. At present, organic conductive fibers are mostly used to develop antistatic blended yarns on the market.
The advantages of this method are: it has good washing resistance, friction resistance, heat resistance, light resistance and permanent antistatic properties, and is not affected by changes in environmental temperature and humidity. It is getting more and more extensive development and application.
Metal plating (such as copper, nickel, silver, etc.) or composite plating (such as copper-nickel plating, etc.) on the fabric surface is also an effective antistatic method. The composite plating method has the characteristics of composite gold and retains the single metal plating. It has advantages and can avoid its shortcomings. Moreover, it has simple equipment, low investment, easy operation, soft fabric, good wearability, strong generalizability, and has good prospects.
The anti-static fabrics and anti-static clothing produced by Xinxiang Yulong Textile Co., Ltd. have excellent electrical conductivity and meet the standards of EN1149 and GB-T12703. Welcome to visit our factory for consultation.