Optical brighteners is a kind of fluorescent dyes, or white dye, is a complex organic compound. Its characteristic is to produce fluorescence excitation of incident light, so that the stained material to obtain similar fluorite sparkling effect, so that the naked eye can see the material is very white.brightener
Based on applicaitonts, mainly used on plastics, textile, paper making and detergents. Used on plastics, usaully have optical brightener OB, OB-1, KSN,KCB, FP 127.