Original Factory 1 5-diaminonaphthalene - Optical Brightener OB-1 – LEADING
Original Factory 1 5-diaminonaphthalene - Optical Brightener OB-1 – LEADING Detail:
Optical Brightener OB-1
C.I. Optical Brightening Agent 393
Cas No. 1533-45-5
Equivalent: Uvitex ERT (Ciba)
- Properties:
1). Appearance: Bright Yellow Crystalline Powder
2). Chemical Structure: A Compound Of Diphenylethylene
Bisbenzoxazole Type.
3). Melting Point: 357-359℃
4). Solubility: Insoluble in water, but soluble in high boiling point organic solvents such as phenyl-chloride.
5). Others: Excellent fastness to heat and light due to its high boiling point, also good fastness to chlorine-bleaching.
- Applications:
It is especially suitable for shaping various kinds of plastics and their products under high temperature. It has an excellent whitening effect on polyester-cotton blend fabric. It can be used for whitening polyester. It is similar to Whitex Xnk, Eastobrite OB-1 made in foreign country.
- Directions For Use And Dosage:
The dosage should be 0.01-0.05% on weight of plastic. Mix optical brightener ert with plastic granulars thoroughly before shaping of plastics or drawing-spinning of polyester.
- Specifications:
Appearance: Bright Yellow Crystalline Powder
Purity: 99% Min.
Melting Point: 357-359℃
- Packaging And Storing:
Packing In 25Kg/50Kg Carton Drums. Stored In Dry And Ventilated Place.
Product detail pictures:

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With advanced technologies and facilities, strict quality control, reasonable price, superior service and close co-operation with customers, we are devoted to providing the best value for our customers for Original Factory 1 5-diaminonaphthalene - Optical Brightener OB-1 – LEADING , The product will supply to all over the world, such as: Mozambique, Greek, Kuwait, Our company is working by the operation principle of "integrity-based, cooperation created, people oriented, win-win cooperation". We hope we can have a friendly relationship with businessman from all over the world.

The company account manager has a wealth of industry knowledge and experience, he could provide appropriate program according our needs and speak English fluently.
