Stretch ntaub rau poj niam leisure ce nyob rau hauv cov xim zoo nkauj.Ua los ntawm rayon, nylon thiab spandex fiber, siv tau thiab siv tau zoo.
Spandex yog cov ntaub hluavtaws uas muaj nqi zog rau nws cov elasticity.Contrary to popular kev ntseeg, lo lus "spandex" tsis yog ib lub npe, thiab lo lus no yog siv los mus rau feem ntau xa mus rau polyether-polyurea copolymer fabrics uas tau ua nrog ntau yam txheej txheem ntau lawm.Cov ntsiab lus spandex, Lycra, thiab elastane yog synonymous.
Zoo li lwm yam polymers, spandex yog tsim los ntawm rov qab chains ntawm monomers uas tau tuav ua ke nrog cov kua qaub.Thaum ntxov ntawm cov txheej txheem kev txhim kho spandex, nws tau lees paub tias cov khoom siv no yog cov cua sov-resistant, uas txhais tau hais tias cov ntaub tsis zoo thaum tshav kub kub-rhiab heev li nylon thiab polyester zoo dua thaum ua ke nrog spandex ntaub.
Elastane's stretchiness tam sim ntawd ua rau nws xav tau thoob plaws ntiaj teb, thiab qhov muaj koob meej ntawm cov ntaub no tseem nyob rau niaj hnub no.Nws yog tam sim no nyob rau hauv ntau hom khaub ncaws uas xyaum txhua tus neeg siv khoom muaj tsawg kawg ib tsab xov xwm ntawm cov khaub ncaws uas muaj spandex, thiab nws tsis zoo li cov ntaub ntawv no yuav txo qis yav tom ntej.