1. Cov khoom xyaw: Cov iav fiber yog tsim los ntawm kev nqus cov iav tom qab melting, thiab qhov muaj pes tsawg leeg yog qhov sib npaug li ntawm iav; cov ntaub-cov xov tsis-woven yog feem ntau ua los ntawm polypropylene, polyester, thiab lwm yam.
2, kev ua tau zoo: iav fiber muaj lub zog loj, acid thiab alkali tsis kam (ntau hom tsis zoo ib yam), elongation tsis tshua muaj. Lub zog ntawm cov ntaub tsis-ntaub muaj zog thiab muaj kev ncua ntxiv
