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SPANDEX CHARACTERISTICS elastic yarn

Elastic fibers (Spandex), in the domestic general habit called "OP", and the Japanese call "PU" European countries called Lycra shell mound pandex. According to ISO 2076 or DIN60001, elastic fibers (Elastan fibers) by more than 85% by weight of the chain polyurethane (Segmented Polyurethane) composed of synthetic linear macromolecules. Places in the United States "Spandex" Zhuchen, Elastan fibers and synthetic rubber are also classified as a high fiber elastic fibers (elastomeric fibers) due to the chemical composition of it, these fibers have a high deformation resistance, that is, since the elongation at break of 200% or more, and usually between 400-800%, and when the external force can be released quickly restored to its original length.

Fibers have a similar spring-like appearance of the shape, the fabric after dyeing deal with stereotypes, but also increased spontaneous curling of elastic properties (Self Crimp), gives a good stretch elastic fabric, elastic good response rate and fluffy.

Low temperature characteristics can be dyed, dyeing temperature 115-130 ℃, with Cotton, Acetate and other natural fibers interwoven use, or for the Hard core package yarn purposes. After dyeing fiber with natural flipped so that the thickness of the fabric surface appearance of a natural color, suitable for knitting, weaving and other textile organizations.