I-Optical brightener ejenti i-NFW ingenye ye-optical brightener ejenti enhle kakhulu yefayibha kakotini emhlabeni.Ifanele ukwenziwa mhlophe kanye nokukhanya kwefayibha kakotini, i-polyacrylamide, i-protein fiber nenayiloni, ifanele inqubo yokudaya iphedi.

Inokumelana okuhle kakhulu ne-chlorine ne-oxygen bleaching, i-asidi ne-alkali.Ukumelana nezinga lokushisa eliphezulu, kulungele ukugeza okukodwa okune-polyester brightener whitening, ngisho naku-180 ~ 190℃ enombala wokulungisa we-polyester brightener thermo, nakho ngeke kube phuzi.Isixazululo esinamanzi salo mkhiqizo kulula ukuguqulwa nge-biodegraded futhi singesomkhiqizo wokuvikela imvelo.