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. | | 4.Specifications: | | Item | Indices | | Appearance | bright yellow crystalline powder | | Melting point | 357-359°C | | Purity | ≥99% | | Volatile content | ≤0.50% | | Ash content | ≤0.10% |
| 5.Packaging Packaged in cardboard boxes,25kg or 50kg each,Stored in dry and ventilated place. |
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optical brightening agent
