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Natural dyeing of silk represents a revival of ancient practices that align with modern sustainability efforts in the textile industry. India is the only country producing all four major silk types, with eri silk, known as ‘peace silk’, accounting for 19% of India’s total silk production. This study explores the natural dyeing of eri silk using plant-based dyes from mulberry fruit (Morus alba) and wild guava (Careya arborea) bark, combined with biological mordants derived from myrobalan (Terminalia chebula) and pomegranate rind (Punica granatum). Dye extractions were optimized using spectrophotometer, with maximum colour yield observed at pH 4 for mulberry fruit and pH 9 for wild guava (Careya arborea) bark. The dyeing was conducted using the exhaust method under controlled temperature conditions, and colour measurements were carried out using colour spectroscopy. The dyed fabrics were evaluated for colour fastness according to ISO standards, demonstrating the potential for vibrant, eco-friendly textile dyeing with minimal environmental impact.

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Eco-friendly Dyeing of Eri Silk Using Plant-Based Dyes and Mordants

  • 会议论文

  • 发表日期：

    2026年

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  • Sandeep Kaswan,
  • Abhilasha Rangi,
  • S. Periyasamy,
  • Naveen V. Padaki,
  • K. Jaganathan,
  • V. Nishita Naik

摘要

Natural dyeing of silk represents a revival of ancient practices that align with modern sustainability efforts in the textile industry. India is the only country producing all four major silk types, with eri silk, known as ‘peace silk’, accounting for 19% of India’s total silk production. This study explores the natural dyeing of eri silk using plant-based dyes from mulberry fruit (Morus alba) and wild guava (Careya arborea) bark, combined with biological mordants derived from myrobalan (Terminalia chebula) and pomegranate rind (Punica granatum). Dye extractions were optimized using spectrophotometer, with maximum colour yield observed at pH 4 for mulberry fruit and pH 9 for wild guava (Careya arborea) bark. The dyeing was conducted using the exhaust method under controlled temperature conditions, and colour measurements were carried out using colour spectroscopy. The dyed fabrics were evaluated for colour fastness according to ISO standards, demonstrating the potential for vibrant, eco-friendly textile dyeing with minimal environmental impact.