Additif d'azurant optique

Optical Brightener (OB) Additive is used to add in polymers for the function of reducing the yellowing, improving whiteness, and enhancing the the brighness for polymers. This additive contain the highly concentrated brightener chemicals which improve whiteness and bring bright look for finished product. Packing: 20kgs/KP, 20KGS/PP woven bag.