Lycra

Lycra^® is the trade name for elastane produced since 2004 by the company Invista (introduced in 1958 by the company DuPont). The fiber contains more than 85% polyurethane, and its elasticity lies in the chemical bonding of solid urethane with an amorphous segment of polyester. It is manufactured as a multifilament, with individual elementary fibers glued together. The elongation of the fibers reaches up to eight times the length, with a tensile strength of 12 cN/tex. The abrasion resistance is very low, so the surface of the yarns from Lycra must be protected for most products by combining (wrapping, spinning, etc.) with yarns of resistant materials. Besides Lycra, for example, Spandex, Dorlastan, and other elastic fibers are also on the market, which only differ slightly in their useful properties. The share of Lycra in total production (in 2009, it was 330,000 tons) is not publicly known. Since Lycra is almost always mixed with another fabric, most often with cotton or polyester, it literally creates a second skin when worn. People with unique curves often struggled with clothing not fitting them, but thanks to Lycra, that is no longer the case. Lycra can perfectly adapt to the body without restricting movement. The elastic fiber allows for free movement, which is appreciated not only in sports. Thanks to the fiber stretching when needed or retracting when at rest, it provides greater comfort for the full 24 hours. Due to its properties, it is an ideal fiber for compression garments, stockings, and shaping underwear. In addition, Lycra fibers are now also found in most sportswear, underwear, swimwear, jeans, tops, T-shirts, dresses, gloves, pants, or jackets. Lycra is used especially in men's fashion rather than in women's. However, Lycra also has some negative qualities. Since Lycra is a well-fitting material, if not in the form of shaping material, it reveals everything, even what you don't want. Therefore, those dealing with extra pounds should be cautious, as it might betray them if chosen incorrectly. Because it is a synthetic fiber, which has recently been generally condemned, it is unfortunately being pushed to the side. It's a pity, because this fiber adds quality and functionality to fabrics. Pure Lycra is not capable of capturing and wicking moisture away from the skin, so it must always be used in a blend. Among its benefits and advantages, however, is that clothing using Lycra is lightweight, comfortable, and breathable. It allows the wearer free movement. Lycra in conjunction with other fabrics can shape the body and optically slim it by several centimeters. Additionally, Lycra effectively blocks ultraviolet radiation and wearing textiles with Lycra reduces the risk of infections.