Ultrasonic dyeing of cotton fabric with aqueous extract of Eclipta alba

The dyeing of cotton fabric using Eclipta as natural dye has been studied in both conventional and sonicator methods. The effects of dyeing show higher color strength values obtained by the latter. Dyeing kinetics of cotton fabrics were compared for both the methods. The time/dye uptake reveals the enhanced dye uptake showing sonicator efficiency. The results of fastness properties of the dyed fabrics were fair to good. CIELAB values have also been evaluated.