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3.especially suitable for high temperature molding of plastic products whitening. recommended dosage. add jinan credit chemicals optical brightener 4bk for textile cotton fabric to every 100kg of material: 1. eva, polypropylene, nylon, polycarbonate and other added in 5 ~ 20g. 2.the amount of polyester fiber added in 10g ~ 40g.

Applications of optical brightening agent er-i. fluorescent brightener 199 (optical brightening agent er-i) is very suitable for whitening and brightening polyester fiber and has good whitening effect on plastics such as pe, pp and pvc and their process of shaping with polyester chips or recovered polyester chips. in addition, the refined ...

Optical brightener cxt or o.b.a.71 for detergent powder , find complete details about optical brightener cxt or o.b.a.71 for detergent powder,optical brightener 71,fluorescent brightener cxt,o.b.a.71 from dyestuffs supplier or manufacturer-tianjin leading import & export co., ltd.

Whitening agents / optical brighteners are additives that impart brightness to polymers and intensify the degree of whiteness. these agents function on the basis of the ‘fluorescence effect’; they absorb light in the uv spectrum and emit light in the blue region of the visible spectrum to yield a brighter and fresher appearance to the plastic.

We attach value to innovation, especially with patents of China on purple color pigment for pvc wholesaler, its superb technology has reached the international sophisticated level, and has a high reputation within the purple color pigment for pvc wholesaler industry. Our group not only has excellent researchers and business nationwide sales and service network, but additionally are China shoppers specified brand companies.


We're suppliers of all kind of purple color pigment for pvc wholesaler moved in market place for terrific sales, we've purple color pigment for pvc wholesaler variety and specification's which will suit our customer's satisfaction. We have also attached purple color pigment for pvc wholesaler samples and other of our needs together with the above attached catalog sample.

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