HulshofKnittings

Lycra are a trading name of Invista (formerly DuPont) for an elastomer which exists from (PU) polyurethane and uses becomes in the textile industry as a synthetic rubber. The international standardized abbreviations (ISO) for elastomers are EA. Other mark names are for example Elastan, Dorlastan and Spandex. The rack of polyurethane is largest of all textile material and is 500 a 600 %. It much are used in zwemkleding, remaining sport clothing, socks/stockings, elastic borders commonly, substances woven which have (light degree of) a rack for better draagcomfort (for example pantalons) and there where support of, or on the body is very needed. For example it has been very wished in medical elastic stockings help blood turn. At borders, closely closing zwemkleding and remaining sport clothing rack and (permanent) connection on the body have been needed. Lycra are in several cross-sections available and several structures (variation are mainly: the quantity smaller wires from which the eventual wire exists).

Lycra are generally transparent of color, gleam and are stroef. Much the wire omsponnen (are tied up/kernomsponnen) with another wire, such as polyester, to give other properties to the wire. Color give can be for this reason, but also sensing on the skin, adaptation of busy/rack proportion, delimitation of the rack and/or verwerkbaarheid during knitting or weave.

Lycra and other polyurethane wires the use has repressed of nature rubber (latex) in the textile to minimum. nature rubber has something less rack and is less resistant against certain chemicals, ageings and lichtinvloeden. nature rubber is also a thicker wire necessary the same stretched to realize. Rubber is still used, for example to make when to a product this way natural possible or a certain rack/busy proportion in the textile is important.