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We are an energetic company with wide market for whitening agent 378, optical brightener ob-1 cas 1533-45-5, plastic whitening agent, whitening agent kcb for polyeste, our advantages are our innovation, flexibility and reliability which have been built during last 20 years. we focus on providing service for our clients as a key element in ...

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.

(1) fluorescent brightenening agent vbl is a typical representative of bis(triazinylamino)stilbene derivative. (2) it can be soluble in 80 times soft water and shows anion character and the ph value resistant to acid and alkali is 6-11 and the expected ph value of dyeing bath is 8-9.

China optical brightener catalog of fluorescent brightener kcb for shoe material, leatherette fluorescent brightener agent fp 127 provided by china manufacturer…

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export OB brightener agent for EVA Supplier with a higher enterprise reputation,from China.Our solutions contain:export OB brightener agent for EVA Solutions are mainly exported to European nations,it is actually well known in quite a few nations.

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