Product Catalog Product Catalog > optical brightener OB-1  Total 9 items Showing 6   Prev   Next  click for larger photo optical brightener OB-1 Name︰ optical brightener OB-1 Model No.︰ C.I.393 Brand Name︰ PR-393 Product Description Apply to the whitening process of polyester fibre, nylon fiber, and polypropylene fiber, filaments. Be used in whitening of PVC solidness, ABS, EVA, and PS, polycarbonates. Dosage: 0.01%～0.05%. Product Image  Total 9 items Showing 6   Prev   Next  Related Products Optical Brightener KCB Optical Brightener ER-1 Optical Brightener KSN optical brightener ER-2 Build your FREE website Find Made in China corn Products !