Exploration of natural colourant of (Solanum melongena L.) brinjal plant residues for fabric dyeing: a novel approach towards textile processing
Natural product research(2023)
摘要
Natural products have become the main focus of mankind due to increasing environmental pollution. The current study was concerned with brinjal plant residues as a source of bio colourant for cotton dyeing. Various media have been employed for the extraction of colourant. Present studies illustrated that excellent colourant yield was obtained in 4% acidified methanol. Cotton fabric was dyed at 50 °C, for 55 min and showed optimised dyeing conditions. Varying chemicals and bio-mordants have been used to achieve elegant shade. Chemical mordanting results revealed that 2% FeSO4as pre-mordant, and 6% TA as post-mordant while in bio- mordanting, 8% of pomegranate peel extract as pre-mordant and 2% pomegranate peel extract as post-mordant indicated a darker shade to mordanted fabrics. Bio-mordanting gave darker shade, and fastness which revealed that bio-mordants have improved the fastness characteristics. FTIR results revealed the confirmation of flavonoids as a colourant for cotton dyeing.
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关键词
Brinjal plant dye,cotton fabric,bio mordant,metallic mordant,spectra flash SF600,dyeing levels
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