I-Optical brightener imunca ukukhanya kwe-UV futhi iphinde ikhiphe la mandla ebangeni elibonakalayo njengokukhanya kwe-violet eluhlaza okwesibhakabhaka, ngaleyo ndlela ikhiqize umphumela wokuba mhlophe kumapholima.Ngakho-ke ingasetshenziswa kabanzi ku-PVC, i-PP, i-PE, i-EVA, ipulasitiki yobunjiniyela kanye namanye amapulasitiki aphezulu.