Optical Type Brightener Master Batches absorb light from lower frequency range of normal visible spectrum and reflects back with a bluish tinge which suppresses the yellow index of the polymer giving glossy surface. The Batches are useful in monolayer and multilayer films, shopping bags, injection moulding and blow moulding items. The Batches give brightness in whiteness natural and coloured items. The Optical Type Brightener Master Batches have dosage ranging from 0.1 to 1%.
