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Optical brightner masterbatch
Optical Brightener Masterbatches are added in polymers to reduce yellowing, improved whiteness, and to enhance the brightness of a product. The objectives of OB Masterbatch are:
This optical brightening masterbatch works with low levels from 0.1-4%. At high loading a blue tinge is seen on the film. This masterbatch contains primary and secondary antioxidants.