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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.

(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.

Fba184, fba 184, optical brightner ob manufacturer / supplier in china, offering fluorescent brightening agent fba 184 fba184, chimassorb 81 cas 1843-05-6, ca acetyl acetonate 19372-44-2 and so on. contact supplier company favorites company favorites

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