Cov qhov ncauj qhov ntswg feem ntau yuav muab faib ua ob pawg, daim npog dav dav thiab cov qhov ncauj qhov ntswg tiv thaiv. Cov ntsej muag dav dav yog siv rau kev tiv thaiv cua thiab qhov sov, thiab lub ntsej muag tiv thaiv yog siv rau kev tiv thaiv ntawm ntau yam. Raws li cov khoom tiv thaiv sib txawv, cov ntsej muag tiv thaiv tau muab faib ua cov npog qhov ncauj pov tseg, cov ntsej muag tiv thaiv txhua hnub, lub ntsej muag tshuaj kho mob, cov qhov ncauj qhov tshwj xeeb thiab cov mine lub ntsej muag tshwj xeeb.
Cov npog ntsej muag tau ua ntau yam khoom siv thiab sib txawv. Qhov ncauj qhov ntswg uas khaws sov yog feem ntau ua los ntawm paj rwb, velvet, cashmere thiab lwm yam khoom siv; qhov ncauj qhov ntswg nrog tiv thaiv particle feem ntau yog siv cov ntaub tsis-ua cov ntaub uas lim. Txhawm rau suav nrog cov teebmeem ntawm kev sov siab, kev zoo nkauj thiab kev tiv thaiv, qee cov tuam ntxhab siv cov xim ntawm ntau cov xim rau cov tawv ntoo tsis tsim cov xov uas ua lub luag haujlwm hauv kev lim dej.
Raws li qhov kev tsim khoom tsim thiab kev siv tshuab yog kev txhawj xeeb, txhua tus muaj nws tus yam ntxwv. Raws li qhov ua tau los ntawm cov khoom siv lim yog qhov kev txhawj xeeb, lawv ib txwm siv meltblown lossis electrostatic spinning txoj kev. Qee cov tuam ntxhab tuaj yeem siv tshuab thev naus laus zis hauv cov ntawv lim dej. Tus nqi ntxiv tuaj yeem txhim kho adsorption muaj peev xwm ntawm cov khoom tsis tas yuav ua kom tuab thiab tsis kam ntawm cov khoom.