Spandex wrapping yog cov xov paj elastic tsim los ntawm kev siv cov xov paj spandex ua cov tub ntxhais thiab qhwv lub elongated spandex yarn nyob rau hauv ib tug kauv duab nrog filament los yog staple fiber yarn. Wb coj spandex corespun yarn thiab spandex wrapping yarn ua piv txwv. Spandex core-spun yarn yog spandex qhwv nrog staple fibers, nrog spandex yarn li cov tub ntxhais, them nrog cov tsis-elastic staple fibers, thiab cov xov paj tseem ceeb feem ntau tsis nthuav tawm thaum ncab. Spandex xov paj wrapping yog ua los ntawm cov tshuaj fiber ntau filament los qhwv spandex, thiab nws kuj yog ib qho elastic yarn tsim los ntawm kev siv spandex yarn li cov tub ntxhais, thiab non-elastic staple fiber los yog filament wrapping lub elongated spandex yarn nyob rau hauv ib txoj kev kauv. Muaj ib tug core exposure phenomenon nyob rau hauv lub tensioned lub xeev.
