Basic Definition

A synthetic fiber used especially for its elasticity and ability to stretch.
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History

More durable than rubber, Lycra, known for its elasticity, is the brand name associated with Spandex. It was invented in 1959 by Joseph Shivers when it was first know as elastane. Used in the clothing industry in order to provide a more comfortable fit. According to knol.google.com, Lycra has much more elasticity than rubber since it can stretch up to 600% of its natural shape. Originally, it was created for woman intimate apparels that didn’t hurt. Overtime, this fabric could be found anywhere from intimate apparels to jeans.

Thanks to modern technology, Lycra is effectively combined with other fabrics such as wool and cotton, causing an even higher demand for it. Lycra or Spandex is made up of a long chain of synthetic polymeric fibers. These fibers are produced in four different ways: melt extrusion, solution dry spinning, solution wet spinning, and reaction spinning. It can be added to any fabric, and to a variety of fibers for stretchability.

Interesting fact: although Lycra is created to improve comfort, fit and adjustment for the body, it is never used as 100% for any fabric manufacturing. China is currently the leading manufacturer of Spandex.

Lycra used in denim
Image courtesy of www.lycra.com
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See Also

Slim-fit
stretch
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References

http://knol.google.com/k/anonymous/spandex-synthetic-fibre/3eg08ippj08jy/7#

http://www.lycra.com/g_en/webpage.aspx?id=81
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