Spandex is a polyurethane fiber, because of its excellent elastic, it is also known as elastic fiber, in the clothing fabric has been a lot of applications, with high elasticity.

Spandex fabric elasticity is very high, the general products do not use 100% polyurethane, more in the fabric mixed with 5 to 30% ratio, the resulting spandex fabrics are 15% -45% comfortable elasticity. Spandex fabric. Often made of composite yarn, that is, spandex for the core, with other fibers (such as nylon, polyester, etc.) made of cortex made of core yarn elastic fabric, its adaptability to the body is good, it is suitable for tights, No pressure. The appearance and performance of the spandex fabric are close to those of the same type of fabric covered with the outer layer of the fabric.

Spandex fabric is mainly used in tight clothing, sportswear, body care and soles and other manufacturing. Its varieties according to the needs of the use, can be divided into warp elastic fabric, weft stretch fabric and latitude and longitude two-way elastic fabric.

Spandex fabric is the biggest advantage of good flexibility, not easy to aging. Spandex can not be woven alone, are generally woven with other raw materials, spandex ratio of about 3-10%, swimwear fabric spandex ratio of 20%. In addition to the larger intensity, the other physical and mechanical properties and natural latex silk is very similar. It is more resistant to chemical degradation than latex silk, with moderate thermal stability, softening temperature of about 200 ℃ or more. Most of the dyes and finishing agents used in synthetic fibers and natural fibers are also suitable for dyeing and finishing spandex. Spandex sweat, resistant to seawater and resistant to all kinds of dry lotion and most sunscreen. Long-term exposure to sunlight or in the chlorine bleach will fade, but the degree of fade with the type of spandex different, very different. Interested? Click http://www.jingsentextile.com