Women's recycled spandex flat pants in china tell you that spandex fiber has such high elasticity because its polymer chain is composed of a low-melting point, an amorphous "soft" segment as the matrix, and a high melting point, a crystalline segment embedded in it Composed of "hard" chain segments. Women's recycled spandex flat pants in china tell you that the molecular chains of the flexible segment form a certain network structure with a certain cross-linking. Due to the small interaction force between the molecular chains, they can be freely stretched and stretched, resulting in a large elongation performance.

Women's recycled spandex flat pants in china tell you that the molecular chain binding force of the rigid segment is relatively large, and the molecular chain will not elongate without limit, resulting in high resilience. The cross-section of the Radon filament is mostly dog-bone-shaped, and some filaments have smooth or jagged surfaces. The breaking strength is the lowest among all textile fibers, only 0.44~0.88CN/dtex (the strength of the polyether type is higher than that of the polyester type).
Women's recycled spandex flat pants in china tell you that their moisture absorption range is small, generally 0.3-1.2% (the moisture absorption rate of multifilament is slightly higher than that of monofilament). The heat resistance varies greatly depending on the variety. Most fibers are stored in the range of 90-150°C for a short time, and the fibers will not be damaged. The safe ironing temperature is below 150°C, which can be heated and disturbed, and wet-cleaned.
Through the above introduction and analysis of the Women's recycled spandex flat pants in china introduces spandex fiber, hope it helps you.