PROPERTIES:
Optical Brightener Ob -1A Is An Excellent Diphenylthylene Bisbenzoxazole Type Compound. It Is insoluble In Water And Has Stable capability And it also has good resistance to heat, sunlight chlorine bleaching and migration. Its own especially high temperature tolerance suitable for shaping various kinds of plastic and their product under high temperature It has ideal whitening effect on polyester fabrics as well as polyester fibre containing fabric including polyester cotton blend fabric it can be used whiten various kind of plastic such as ABS, PS, HIPS, PA, PC, PP, EVA, and rigid PVC with additional of optical agent OB - 1a polyamide fiber and nylons and polyesters have significant good white ness mixes with the product recycling material polyester waste material and slice flake will have a higher whiteness than before different recycling material will have better similar color.
Dosage: For Transparent Product: 0.0025-0.005% For Opaque Product: <0.01-0.3% Usage: Optical Brightener OB-1a is thoroughly dispersed in the polymer. When any ultraviolet absorption agent is added the optical brightener ob-1a will be adjusted accordingly.
Package: 25 kg Fibre Drum with double PE bags
Storage: Should be stored in Cool and Dry place