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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.

(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.

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Whitening agents / optical brighteners are additives that impart brightness to polymers and intensify the degree of whiteness. these agents function on the basis of the ‘fluorescence effect’; they absorb light in the uv spectrum and emit light in the blue region of the visible spectrum to yield a brighter and fresher appearance to the plastic.

OB fluorescent brightener for soap distributor in Vietnam manufacturer with years's encounter, from China.We primarily provide OB fluorescent brightener for soap distributor in Vietnam with high quality and competitive value.we have an expert OB fluorescent brightener for soap distributor in Vietnam item designers.Our product is via the national specialist certification.


We are an enterprise that export OB fluorescent brightener for soap distributor in Vietnam to China, we are approved by the relevant state registratio. Primary OB fluorescent brightener for soap distributor in Vietnam and sell to different regions in China, product out there upon request. We've got the spirit of "customer initial, honesty first" principle, using a quantity of enterprises established long-term cooperative connection.

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