Dyeing of wool with <i>Acacia pennata</i>

Abstract

Wool fabric has been dyed with an aqueous extract from the bark of <i>Acacia pennata </i>containing tannin as the major colourant. Dyeing with the combination of extracts of <i>Acacia pennata </i>and banana stem has also been carried out and improvement in depth of colour without altering the tone observed. The colour of the fabrics has been evaluated on computer colour matching system in terms of <i>K/S </i>and <i>L^* a^*b^* </i>colour coordinates. The dyeing shows moderate to good fastness to washing, light and rubbing.