Reactive dye is widely used in textile field. Novacron dyes is one of them. Dyeing method has the advantage of running continuous production. With small amount of dye consumption with simple application technique and less waste water contamination, we can save energy, time, water and labour employment and ultimately increase the production rate. The affinity of dyes of small molecular weight is low and diffusion rate inside cellulosic fibres is high. Novacron dyes have higher molecular size, so in dyeing it becomes effective in jute and jute-cotton union fabric. All cellulosic fibres like jute and jute-cotton union can be dyed by continuous method with very good fastness properties.