Fluorescent Whitening Agent OB-1(FBA393)
Properties:
Appearance: Bright yellow crystalline powder
Melting point:357-359℃
Solubility: Insoluble in water, but soluble in high boiling point organic solvents such as benzene tricheloride
Structure: A compound of diphenylethylene bisbenzoxazole type
Others: strongly resistant to heat and light due its high boiling point and extra strongly resistant to chlorine-bleaching.
Applications: Whitening Agent 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 fibers as well as polyester fiber-containing fabrics including 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 make in foreign countries.
Directions for use and dosage: The dosage should be 0.01-0.05% on weight of plastics or polyester pellets. Mix the materials thoroughly before shaping of the plastic products or drawing -spinning of polyester fibers.
Specifications:
Item |
Indices |
Appearance |
bright yellow crystalline powder |
Purity |
≥99% |
Melting point |
357-359℃ |
Packaging and storing: Packaged in cardboard barrels, 25kg or 50kg each. Stored in dry and ventilated place.
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