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Optical brightener brightening colors or mask yellowing by optically yield a brighter, fresher appearance. it’s synonym name oba which is also known as fluorescent whitening agent(fwa) or fluorescent brightening agent(fba). typical optical brightener for paper are vbl, bbu, hs, hst. vbl is also known as fluorescent brightener 85.

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.

Use methods of optical brightening agent in plastics. many plastic terminal manufacturers do not know much about proper use of fluorescent whitening agent (optical brightening agent).today, anyang general chemical co., ltd. will popularize several use methods of optical brightening agent in plastics.

Our corporation primarily engaged and export permanent yellow pigment for pvc factory. we depend on sturdy technical force and continually create sophisticated technologies to meet the demand of permanent yellow pigment for pvc factory clients. We are sincerely welcome good friends from numerous circles at dwelling and abroad come to cooperate!


We're an enterprise that export permanent yellow pigment for pvc factory to China, we are authorized by the relevant state registratio. Key permanent yellow pigment for pvc factory and sell to many regions in China, solution offered upon request. We've got the spirit of "customer very first, honesty first" principle, with a quantity of enterprises established long-term cooperative relationship.

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