Optical Brightener is predicated on bis-benzoxazole type organic derivative dispersed within the polymer. These Masterbatches are added in polymers to scale back yellowing, improved whiteness, and to reinforce the brightness of a product. These Masterbatches function by absorbing the ultraviolet and re-emitting the blue light. These masterbatches are utilized in order to mask natural yellowing of plastics
Major applications are: