Product Name: Fluorescent Whitening Agent OB-1
C.I. No.: FBA 393
Physical Form: bright yellow crystalline powder
Melting Point(℃): 357-359
Solubility:Insoluble in water,but soluble in high boiling point organic solvents such as phenyl-chloride.
Structure:a compound of diphenylethylene bisbenzoxazole type
FWA OB-1 is especially suitable for shaping various kinds of plastics and their products under high temperature.It has an extra ideal whitening effect on polyester-cotton blend fabric.It can be used for whitening polyester melt.This whitening agent is similar to Whitex SNK,Uvitex ERT and Eastobrite OB-1 made in foreign country.
Directions for use and dosage:
The dosage should be 0.01-0.05% on weight of plastic or polyester granules.Mix the materials thoroughly before shaping of the plastic products or drawin-spinning of polyester fibers.