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This research explores the use of cashew flesh juice as a natural mordant to enhance dyeing with turmeric extracts on cotton fabrics.

Enhanced Cotton Dyeing With Turmeric Rhizome Extracts by Cashew Flesh Juice ( Anacardium occidentale L.) as a Natural Mordant

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Randomized trial investigates cotton dyeing with turmeric using cashew juice, suggesting eco-friendly dyeing methods.

This research explores the use of cashew flesh juice as a natural mordant to enhance dyeing with turmeric extracts on cotton fabrics.
Cotton was dyed with turmeric ethanol extracts and cashew apple juice at 70°C for 60 min.
AATCC 100 quantitative test was used to assess antibacterial properties against Staphylococcus aureus and Escherichia coli.
The impact of dyeing variables, including liquor ratio and sodium sulfate concentration, on dye fixation and fastness was evaluated.
Curcumin exhaustion reached approximately 87% at optimal conditions.
Washing fastness improved from grades 2-3 to 3 after treatment, with a final rating of 4-5 after eco-friendly mordant treatment.
Significant antibacterial effects were noted, with reductions of 73.68% for S. aureus and 85.71% for E. coli after 18 hours.

Anh et al. (2026) studied this question.

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