Use of natural mordant in dyeing of wool

90-93Natural mordant was obtained by concentrating aqueous extract of banana flower petaloids under reduced pressure and evaporating it to dryness. Bharat Merino sheep wool yarn dyed with turmeric (Curcuma Longa) was subjected to mordanting separately with natural mordant and chromium under the identical conditions. Out of the different concentrations of the mordants used, 3.5 % natural mordant and 1.5 % chromium (on the weight of yarn) showed similar colour fastness, reflectance, colour shade and K/S values. The chemistry of wool dyeing and the physico-chemical properties of dyed wool yarns are also discussed.