Optical Brighteners

Optical Brightener OB is a high-purity, blue-toned fluorescent whitener used to reduce yellowing and achieve a brighter, clearer appearance in plastics such as polyolefins, PVC, PS, and ABS. This highly thermally stable additive provides maximum whiteness at low dosages, enhancing product quality in both aesthetic and performance aspects. Its UV absorption properties also enhance resistance to external factors.