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[Fiber knowledge] Spandex spinning method
Polyurethane fiber (spandex) is an elastic fiber (Spandex) made of a polymer compound with a linear chain structure containing more than 85% urethane. The trade name of our country is spandex. Due to the particularity of the structure, spandex has high strength, light specific gravity, excellent high elasticity and elastic recovery rate, its products are soft and elastic, close-fitting and unconstrained and relaxed, have good taking performance, and are widely used in Industry, medical, sports and other fields.