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Optical Brightener OB

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Optical Brightener OB

Optical Brightener OB is added to many materials to reduce yellowing, improve whiteness, and to enhance the brightness of a product. It is used widely in the plastic market. Because of its excellent brightening ability, good thermal stability, and compatibility with many polymers.


Product Detail

Product Tags

 

OB-1

C.I.

393

CAS No.

1533-45-5

Appearance

Bright yellowish green crystal powder

Purity

≥98.5% min.

Melting Point

357-360℃

Application

Good whitening and brightening effect for polyester-cotton blend fabric. Especially in various kinds of plastic products like PET, PP, PC, PS, PE, PVC. But it is easy to migration in PE and low temperature plastic.

Packing

25kg fiber drums with PE liner.

 

OB

C.I.

184

CAS No.

7128-64-5

Appearance

Light yellowish or milk white powder

Purity

≥99.0% min.

Melting Point

196-203℃

Application

A good whitening agent for PVC, PS, PE, PP, ABS, thermoplastic plastics, acetate fiber, paint, coating and printing ink, etc.

Packing

25kg fiber drums with PE liner.

 

CBS-127

C.I.

378

CAS No.

40470-68-6

Appearance

Light yellow crystal powder

Purity

≥99.0% min.

Melting Point

190-200℃

Application

A good whitening effect for various plastic and plastic products, like PVC, Polypropylene, transparent high-grade plastic products. Whitening effect is more excellent. Particularly application in PVC soft products.

Packing

25kg fiber drums with PE liner.

(Remark: The information of our products is for reference only. We are not responsible for any unexpected results or patent dispute caused by it.)

 

Notes: 

Optical Brighteners function by absorbing ultraviolet radiation and remitting blue light. The emitted blue light will reduce the yellow color of a polymer. In the presence of a whitening agent, such as TiO2, the use of OB-1 will produce a brilliant white or “ white than white” appearance.
Optical Brightener Agent OB is a high molecular weight optical brightener of the thiophenediyl benzoxazole class, suitable for the optical brightener of polymers at all stage of processing.
The CBS-127 is an Optical Brightener applicable to polymers, especially for PVC and phenylethylene products. It could be added to the polymers as pigment. The bright white color will present on the products if used low concentration of CBS-127 together with anatase titania. The concentration of CBS-127 should add-up if the rutile anatase titania will be used.

 

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