An efficient ultrasonic-assisted bleaching strategy customized for yak hair triggered by melanin-targeted Fenton reaction.

ABSTRACT: Promoting processing efficiency and taking advantage of agricultural by-products are two promising ways to achieve sustainable textile industry. This study presents a customized efficient ultrasonic-assisted bleaching strategy for yak hair - a widely existing but underexploited secondary dark shade fibre from yak. A melanin-targeted Fenton oxidation process is established which involves three phases, i.e., (I) incorporation of Fe²⁺ ions with melanin, (II) catalytic oxidative bleaching using hydrogen peroxide (H₂O₂), and (III) reductive cleansing. The bleaching efficacy, dyeing performance and tensile property of yak hair treated with and without ultrasound were explored and compared. Further, the ultrasonic bleaching mechanism in terms of the catalytic effe

SUBMITTER: Li Q 

PROVIDER: S-EPMC9079105 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature