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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.

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 ...

(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.

Molecular formula:c 18 h 15 cln 2 o 6 s molecular weight: 422.84 cas registry number:7023-61-2 manufacturing methods :2-amino-4-chloro-5-methylbenzenesulfonic acid diazotization, and 3-hydroxy-2-naphthoic acid coupling, and then into calcium salt. properties and applications:brilliant red, shallow blue light pink.purple red powder. insoluble in water and ethanol.

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KSN brightener agent for plastics wholesaler is definitely the product that we have continued to emerge inside the China industry and accomplished fantastic reputation. Our products advertising and marketing network at all more than the China regions. More than 10 years, we have created into a high-volume, multi-function in the traits, it could completely meet the demands with the KSN brightener agent for plastics wholesaler sector.

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