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). Mesh Size: ≥800 mesh (or customize)

5). Fluorescent Intensity (E1%1cm) ≥2000

6). Solubility: Insoluble in water, but soluble in high boiling point organic solvents such as phenyl-chloride.

7). Others: Excellent fastness to heat and light due to its high boiling point, also good fastness to chlorine-bleaching.

Optical Brightener OB-1 Applications 

Optical Brightener OB-1 is especially suitable for shaping various kinds of plastics,suitable for whitening and brightening PE, PVC, ABS, PC and other plastics. It has an excellent whitening effect on polyester-cotton blend fabric. It can be used for whitening polyester.

Optical Brightener OB-1 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.

Optical Brightener OB-1 Specifications:

Appearance: Bright Yellow Crystalline Powder

Purity: 99% Min.

Melting Point: 357-359℃

Optical Brightener OB-1 Packaging And Storing:

Packing In 25Kg/50Kg Carton Drums. Stored In Dry And Ventilated Place.