The Basic Characteristics Of Spandex

Spandex, translated as "Spandex", is an elastic fiber, the scientific name Polyurethane fiber (Polyurethane), short (PU). The Chinese mainland is called "spandex", it is highly elastic, can be stretched 6 to 7 times, but with the disappearance of tension can quickly return to the initial state, its molecular structure is a like a chain, soft and stretchable polyurethane, by connecting with a hard chain segment to enhance its properties. Elastic fibers are divided into two categories: one is polyester chain; One is polyether chain. Polyester elastic fiber has strong oxidation resistance and oil resistance; Polyether elastic fiber is mildew resistant and detergent resistant.