Optical brightener agent NFW is one of the most excellent optical brightener agents for cotton fiber in the world. Suitable for whitening and brightening of cotton fiber, polyacrylamide, protein fiber and nylon, suitable for pad dyeing process.

It has excellent resistance to chlorine and oxygen bleaching, acid and alkali. High temperature resistant, suitable for one bath with polyester brightener whitening, even in 180 ~ 190℃ with polyester brightener thermo fixation color, also will not yellowing. The aqueous solution of this product is easy to be biodegraded and belongs to environmental protection product.