Processing method of polypropylene elastic filament
Polypropylene elastic fibers are processed with false twist method, the principle is as follows: if the two ends of the fixed wire in the middle of the twist, then on the twisting point, the next two sections of the wire will form a twist to the opposite, the same twist. If the twist direction on the lower strand of the twist point is set to twist, then the twist direction on the strand above the twist point is untwist. When the filament is moved from the bottom up to above the twist point, the resulting twist is reduced to zero, and there is no true twist on the filament. The thermoplastic energy of the chemical fiber is used to heat set in the next section of the twist point, that is, the twisted wire has been twisted in the heat setter to eliminate the twisting stress, then the twisting deformation is fixed, and when the twisting point is turned off, the curled state formed by the twist is preserved, called crimped fluffy polypropylene filament.
The polypropylene elastic filament produced by false twist method has unbalanced torque and unstable shape. In practical practice, two strands of stretch silk are often twisted, and the direction of twist is opposite to the original silk, and the number of strands is about 70-100 twist/meter. Polyester low elastic silk is also processed by false twist method, which is to further process the twisted deformed silk, so that it is hot set again under certain elongation conditions, the fluffiness of the processed product is slightly reduced, and the elasticity is quite improved.
Our Zhuji Datang Dabao chemical fiber factory, founded in 1995, is located in the scenic Xishi hometown "China sock town" - Zhuji Datang Town. Now has a POY filament production line, supporting 473B type loading machine, ankonylon coated yarn, high-speed image rib machine and other production equipment, is a diversified manufacturer. Everyone get ready to take a look at the unique charm of our polypropylene stretch yarn!
Our factory focuses on the production and research of polypropylene elastic filament, polypropylene elastic filament, porous filament, polypropylene filament, polypropylene bamboo charcoal filament and other products, mainly used in socks wrist guard, kick guard, headwear, sweater, woven fabric, gloves, underwear and so on.
Polypropylene filament strength is second only to nylon, but the price is only 1/3 of nylon, made of fabric size stability, wear resistance elasticity is also good, good chemical stability.
Zhuji Datang Dabao Chemical Fiber Factory, founded in 1995, is located in the beautiful Xishi hometown, "China sock town" - Zhuji Datang Town. Now has a POY filament production line, supporting 473B type loading machine, ankonylon coated yarn, high-speed image rib machine and other production equipment, is a diversified manufacturer.
If you want to know more product information, please contact: Jinzong 0575-87746198 Address: Jinshan Village, Datang Town, Zhuji City, Zhejiang Province (500 meters by the side of Hangjingong road) Website: http://www.dbfibre.cn