First of all, Lycra is a kind of spandex. Only the spandex produced by DuPont is called Lycra, which should be the most stable spandex stretch yarn, and the price is much more expensive than other companies' products.

In fact, many people are confused by the many names of spandex. E.g. spandex, spandex), OP, Pullframe, polyurethane, elastic fiber, Lycra, etc. In fact, spandex is a kind of synthetic elastic fiber, and its main component is polyurethane, so we call it spandex;

Spandex: This name is widely used in North America;

Elastane: this name is widely used in continental Europe;

Lycra/Lycra/Rack: spandex fiber produced by DuPont's Invista, which is their registered trademark. Lycra is called Lycra in Chinese, transliterated from Guangdong and Hong Kong, but the rack they said only refers to all elastic fibers, not necessarily Lycra, so be sure when placing an order;

OP: Generally used in Taiwan Province Province and Japan, it should be the abbreviation of Opelon, which is the abbreviation of Japanese Lycra jointly developed by Toray and DuPont, but it is difficult to determine whether this is the case;

Polyurethane, abbreviated as PU, is the scientific name of spandex, but it is also used by some people.