White fiber high-quality spandex yarn

Spandex covered yarn is an elastic yarn formed by covering spandex filaments with filaments or short fiber yarns in a spiral manner. Spandex core-spun yarn is a yarn spun with spandex yarn as the core and wrapped with one or several non-elastic short fibers. The core filament of the core-spun yarn is surrounded by the outer fiber, and the two are tightly combined. The core filament and the outer fiber have the same twist. It has three notable features: first, it has the same feel and appearance as the outer fiber (cotton, wool, polyester, cotton, etc.), and the outer sheath composed of natural fibers has good moisture absorption; the second is good elasticity; the third is the percentage of elasticity Can be controlled below 20%.
Compared with other elastic yarns, the spandex core-spun yarn has a remarkable feature that the core yarn is not exposed when the yarn is stretched. Therefore, the dyeing effect is good, and it is suitable to make products of various colors including dark colors.

Compared with other types of stretch yarns, the strength of core-spun yarns is relatively low. Under normal circumstances, the strength of a single yarn is only equivalent to 80% to 90% of the yarn of the same specification wrapped fiber alone. The core-spun yarn is the first to break the outer fiber, and the strength formed by the outer fiber is the strength of the core-spun yarn. Spandex yarn is a low-strength and high-stretch filament. It does not contribute to the strength of the yarn in the core-spun yarn, Therefore, the higher the spandex content, the lower the strength of the core-spun yarn. It has a wide range of uses and can be used as a swimming suit due to its strong flexibility. Diapers; strong resilience, can be used as underwear.