Blue Reactive VS Dyes are known for their moderate reactivity level. These vinyl sulphone dyes are applied on cellulose fibers by adopting exhaust dying technique. Procedures like continuous and cold pad batch dying are also used for their application. Blue Reactive VS Dyes are perfect for resist style of printing. These dyes show excellent solubility when exposed to alkali. These can achieve good leveling characteristics. Standard of these dyes has been verified on the basis of their shelf life, composition, coloring attributes etc.