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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.

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.

China optical brightener agent manufacturersselect 2020 high quality optical brightener agent products in best price from certified chinese chemical additives manufacturers, china brightener suppliers, wholesalers and factory on made-in-china

Fluorescent whitening agent cf(oba 184) optical brightener ci184 optical brightener ob for plastic us $23.00$23.00 / kilogram

We're suppliers of all kind of Factory for brown pigment for solvent based ink moved in market for terrific sales, we've Factory for brown pigment for solvent based ink sort and specification's that will suit our customer's satisfaction. We've got also attached Factory for brown pigment for solvent based ink samples along with other of our requirements together with the above attached catalog sample.


We're an enterprise that export Factory for brown pigment for solvent based ink to China, we're authorized by the relevant state registratio. Major Factory for brown pigment for solvent based ink and sell to many regions in China, solution readily available upon request. We have the spirit of "customer 1st, honesty first" principle, with a quantity of enterprises established long-term cooperative partnership.

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