OPTIMIZATION OF PH AND CONCENTRATION OF DYE LIQUER OF NATURAL DYES

At present research is focused to find out alternative dyes for food and clothing and it should be eco friendly , readly available , cost effective and safe to use both in food material and fabrics. The usage of the plant based natural dyes is traced back to ancient civilization . Due to the environmental and health hazards problems caused by the synthetic dyes.Now people are more concerned about the usage of natural dyes during the last two decades. Botanistists have identified more than 450 dyes yielding plants that naturalized in India. The natural dyes are fast in staining , long lasting , renewable , bio-degradable and eco friendly . Now a days , natural dyes have entered in to the textile , food , pharmaceutical cosmetics , fibre , leather and paint industries. In the present study, the usage of the dye obtained from tectona grandis plant leaves is evaluated.