Spandex Fiber ntau

Spandex yog hluavtaws fiber ntau uas paub txog nws elasticity.Nws yog tsim los ntawm ib tug ntev saw polymer hu ua polyurethane, uas yog tsim los ntawm reacting polyester nrog ib tug diisocyanate.Lub elasticity thiab lub zog (txog li tsib npaug ntawm nws qhov ntev), ntawm spandex tau muab tso rau hauv ntau hom khaub ncaws, tshwj xeeb tshaj yog nyob rau hauv cov khaub ncaws nruj nreem.