Eco-friendly and effective dyeing of wool with anthraquinone colorants extracted from Rubia cordifolia roots: Optimization, colorimetric and fastness assay

Journal of King Saud University: Science

Faqeer Mohammad¹  Mohd Shabbir¹  Mohd Yusuf² 

[1] Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi 110025, India;Department of Chemistry, YMD College, Maharshi Dayanand University, Haryana 122107, India;

关键词: Extraction;    Dyeing;    Fastness;    Color strength;    Rubia cordifolia;   

DOI  :  10.1016/j.jksus.2016.06.005

来源: DOAJ

【 摘 要 】

The present study is aimed to explore the dyeing ability of anthraquinone colorants extracted from Rubia cordifolia Lin. roots. Sustainable approach for textile dyeing with a systematic protocol is followed with the effect of AlCl3 and CaCl2 metallic mordants. The optimization of extraction and dyeing conditions was assessed by Reflectance Spectrophotometry. The optimum extraction and dyeing conditions were found to be pH = 2, time = 45 min and temperature 90 °C and pH = 4, time = 90 min and temperature 90 °C respectively. At optimized conditions, dyeing abilities of pre-mordanted with metallic salts as anchoring agent (AlCl3 and CaCl2) were compared. Wool samples dyed with Madder root extract impart radiant red shades with or without mordants having different hue and tones with commercially acceptable colorimetric and fastness properties without sacrificing much of the resources. Effective improvement in color as well as fastness properties was observed using anchoring agents.

【 授权许可】

Unknown