Optical Brightener Ob -1A is an excellent Diphenylthylene Bisbenzoxazole type compound. It is insoluble in water and has good resistance to heat, sunlight, chlorine bleaching and migration. It has high temperature tolerance which is suitable for shaping various kinds of plastics and their products under high temperature.
It has ideal whitening effect on polyester fabrics as well as cotton blend fabrics; it can also be used to whiten various kinds of plastics such as ABS, PS, HIPS, PA, PC, PP, EVA and rigid PVC.
When we add OB - 1a Polyamide Fiber to Nylons and Polyesters they show significant increase in whiteness.
It also mixes well with recycled polyester waste material therefore showing a higher whiteness when applied.
For Transparent Product: 0.0025-0.005%
For Opaque Product: <0.01-0.3%
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.
25 kg Fibre Drum with double PE bags
Should be stored in Cool and Dry place