optical brightener OB
Detailed Description
Appearance: light yellow or milk white powder
Solubility: hardly soluble in water,but soluble in paraffin, mineral oils and ordinary organic solvents.
Packaging: 25KGS fiber drums within double PE bags.
Usage:A good whitening agent for PVC,PS,PE,PP,ABS,ther-moplastic plastics,Acetate fiber,paint,coating and printing ink,etc.

- optical brightener OB