1. PP txhais tau tias cov khoom siv ntawm cov xov tsis-woven yog PP, thiab spunlace tsis-woven npuag tau hais tias yog txheej txheem ntau lawm.
2. Qhov ob hom ntawm cov tsis-qhwv ntaub yog qhov sib txawv ntawm cov txheej txheem khiav, thiab cov ntaub ntaub tshwj xeeb tsis sib txawv.
PP tsis-woven npuag: Lub npe tseeb ntawm cov ntaub-tsis-qhwv cov ntaub yuav tsum tsis yog-siv rau cov ntaub, lossis cov siv tshuab tsis muaj ntaub. Vim tias nws yog cov ntaub uas tsis tas yuav yauv thiab weaving (daim ntawv thov cov khoom siv ib puag ncig), nws tsuas yog ua kab lossis xaim xov los yog ntaub ua qauv tsim lub vev xaib, thiab tom qab ntawd siv cov neeg kho tshuab, thermal sib txuas lossis chemistry. Raug txhawb los ntawm lwm txoj hauv kev
