Product Catalog Product Catalog > Optical Brightener ER-1  Total 9 items Showing 5   Prev   Next  click for larger photo Optical Brightener ER-1 Name︰ Optical Brightener ER-1 Model No.︰ C.I.199 Brand Name︰ PR-199 Product Description Applied to the whitening process of Dacron, acetic fiber, polyamide fiber, blends of terylene-cotton. Dosage：0.01%～0.03% Product Image  Total 9 items Showing 5   Prev   Next  Related Products Optical Brightener KCB Optical Brightener OB optical brightener OB-1 optical brightener CBS-X Build your FREE website Find Made in China pigment Products !