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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 ...

The whitening effect of optical brightener agent could be estimated by visual method which better under the sunlight or measure by colorimeter. 3.light fastness there is no international standard for testing optical brightener lightfastness in plastics.most tests used din 54004 for reference.

Nov 14, 2020 · pls send inquiry of optical brightening agent 4pl-c cas:16470-24-9-1 to [email protected] of visit www.nbinno our official website should you have any interests, thank you! related news: this means that the drug attributes of the drug substance will be lost in the future, and the monopoly power of some drug substances will also be lost.

Application it is mainly used for whitening synthetic detergents and soaps. it can also be used for whitening cotton, linen, nylon wool and paper.it is suitable for whitening cotton, terylene blended fabric and whitening of cotton blended fabric and widely used in detergents, bleaching and dyeing, paper, dyes and other.

We attach value to innovation, specifically with patents of China on supply OB bleaching powder for fiber, its excellent technology has reached the international sophisticated level, and includes a higher reputation inside the supply OB bleaching powder for fiber business. Our group not simply has exceptional researchers and industry nationwide sales and service network, but additionally are China consumers specified brand producers.


We're an enterprise that export supply OB bleaching powder for fiber to China, we're authorized by the relevant state registratio. Main supply OB bleaching powder for fiber and sell to many regions in China, item readily available upon request. We've the spirit of "customer first, honesty first" principle, using a quantity of enterprises established long-term cooperative connection.

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