Nsalu yopangidwa ndi Spunlace yosalukidwa yoyenera kusefa mafuta a injini nthawi zambiri imagwiritsa ntchito zinthu zosagwira mafuta monga polyester (PET), yomwe imalemera magalamu 60-120 pa mita imodzi, makulidwe a 0.3-0.8mm, ndi kukula kwa pore ya ma microns 10-30, kuti igwirizane bwino kusefa komanso kulowa kwa mpweya.
Mtundu, kukhudza ndi zinthu zitha kusinthidwa.
