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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.

Pigment red 144 trade name is fast red br and cas number is 5280-78-4,pigment red 144 mainly used in plastic, rubber, paint and ink color.

Nov 12, 2020 · buyers can post inquiries without registration and check out all the latest buying guide & chemical market reports you need in our industry resource center. the above is the search results for chinese optical brightener, click for more recommended manufacturers & suppliers listings such as fluorescent brightener, fluorescent whitening agent, ob-1.

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professional KSN optical brightener for plastic and fiber is definitely the item that we have continued to emerge within the China industry and achieved superior reputation. Our products promoting network at all over the China regions. More than ten years, we've got developed into a high-volume, multi-function of the traits, it can totally meet the desires with the professional KSN optical brightener for plastic and fiber business.


We are suppliers of all type of professional KSN optical brightener for plastic and fiber moved in industry for good sales, we've professional KSN optical brightener for plastic and fiber type and specification's that will suit our customer's satisfaction. We've got also attached professional KSN optical brightener for plastic and fiber samples and also other of our desires together with the above attached catalog sample.

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