DOI: 10.36347/sajb.2018.v06i09.002

Pages: 618-622

The quantitative dye content of Phyllanthus muellerianus leaves grown in Enugu State University of Science and Technology, Agbani was evaluated. After successive solvent extraction with acetone and water (50/50 [V/V]) of powdered dry leaves, partitioning with n-hexane, chloroform, ethyl acetate and n-butanol were carried out. Two main dyes were obtained from the ethyl acetate fraction which was identified as anthocyanin and chromene. The dyeing condition for wool with the dye were carried out at 100°C for 1 hour in dye bath containing 3% dye, 8% sodium sulphate and 4% acetic acid at liquor ratio 1:50. The post mordanting was done with various metallic salts. The colour strength of the dye on the wool were found to be highly dependent on the type of mordant, optimum results being obtained with CuSO4 and K2Cr2O7. The K/S of the dyed wool revealed that CuSO4 have more stable colour strength than K2Cr2O7, tin chloride and alum. Copper sulphate mordanted samples have good light and washing fastness than K2Cr2O7 (rating 4.2)