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optical brightening agent
optical brightening agent

optical brightening agent Fluorescent Whitening Agent OB-1 is especially suitable for shaping various kinds of plastics and the

Fluorescent Whitening Agent OB-1(FBA393)

optical brightening agent             

1.Properties:Appearnace:bright yellow crystalline powder                         Melting point:357-359°C Solubility:Insoluble in water,but soluble in high boiling point organic solvents such as phenyl-chloride. Structure:a compound of diphenylethylene bisbenzoxazole type                                                

2.Applications:                                                                                                                                                                                                         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.               

3.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.     

Appearancebright yellow crystalline powder
Melting point357-359°C
Volatile content≤0.50%
Ash content≤0.10%

5.Packaging             Packaged in cardboard boxes,25kg or 50kg each,Stored in dry and ventilated place.    

optical brightening agent

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