Ecofriendly dyeing of recycled cotton yarn using babool bark extract and biomordants for enhanced performance

Abstract

This study investigates an eco-friendly process for producing naturally dyed recycled cotton yarn, integrating traditional desizing and scouring techniques with natural mordanting and dyeing. An aqueous extract of babool bark is employed for natural dyeing. Mordanting with myrobalan and pomegranate rind is reported to enhance dye fixation and colour vibrancy. FTIR analysis confirms characteristic functional groups associated with improved dye–fibre interactions, with spectral variations between mordants.