Ngwaahịa a bụ ihe na-arụ ọrụ dị elu nke na-edozi ihe eji esiji na-emeghachi omume nke mejupụtara ihe ndị bụ isi nke ogige cationic polymer.Ọ nwere mmetụta dị oke mma n'ịkwalite ngwa ngwa mmiri nke ngwaahịa eji esiji eriri eke dị ka owu yarn (akwa), Rayon, silk na eriri cellulose ndị ọzọ.Mgbe emechara ngwaahịa a, enwere obere mgbanwe na hue na mbelata ngwa ngwa na ìhè anyanwụ.Karịsịa, ọ nwere ọrụ elu pụtara ìhè na ịdị ngwa na nguzogide chlorine (Nnwale chlorine siri ike 20PPM).