July-September - Volume 13, Number 3 (2025)
MORDANT CONCENTRATION EFFECT ON THE COLOUR STRENGTH OF CYANIDIN GLYCOSIDE DYED WOOL
C C Ogbuanu, O C Ike, T C Amobi, C N Eze, C J Anekwe, C I Diara, A E Ozoude
Natural dye is known to have poor fastness qualities and weak shades in colouring fabrics, and to improve fastness qualities and strength of the shades a mordant is needed. This study therefore aims to investigate the effect of different mordants concentration on the colour strength of the ethyl acetate extract of Phyllanthus muellerianus dyed wool. The aqueous filtrate of acetone and water (50/50 v/v) extract was partitioned successively with n-hexane, chloroform, ethyl acetate and n-butanol. The ethyl acetate fraction in ethanol was separated into its various fractions using thin layer and column chromatography that afforded one compound characterized spectroscopically. The...