Optical brightener OB Fine ndi mtundu wa benzoxazole pawiri, alibe fungo, zovuta kusungunuka m'madzi, sungunuka mu parafini, mafuta, mchere mafuta, sera ndi wamba organic solvents.Iwo angagwiritsidwe ntchito whitening mapulasitiki thermoplastic, PVC, PS, Pe, PP, ABS, Acetate CHIKWANGWANI, utoto, ❖ kuyanika, inki yosindikiza, etc. Iwo akhoza kuwonjezeredwa pa siteji iliyonse m'kati whitening ma polima ndi kupanga zomalizidwa mankhwala. zimatulutsa kuwala kowala koyera koyera.