Reactive dyeing properties of novel regenerated cellulosic fibres

Two types of reactive dye (monochlorotriazine and vinylsulfone types) were applied to regular viscose rayon and new regenerated cellulosic fibre (enVix®), which was prepared from cellulose acetate fibre by the hydrolysis of acetyl groups, and their dyeing and fastness properties were compared. From the results, it was found that enVix® exhibits better dyeability and fastness than the regular viscose rayon. These results were also explained by the differences in the supramolecular structure of these two fibres.