Ecological application of natural biomaterial on natural fibres

Alka Thakker, Danmei Sun

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Circular economy calls for circular materials implemented at each stage of input for zero waste output including textile wet processing. Thereby combat global climate and human health crises attributed to textile emissions and effluents. UN Sustainable development goals promulgate sustainable resource applications throughout the manufacturing chain hence the envisaged research. Natural biomaterials such as indigo, manjistha, cinnamon, green tea, kesudo, goldenrod, neem, and tulsi were sustainably applied on bamboo, banana, and merino wool fibres.
The surplus bath dissolved oxygen level was 6.80, 7.81 and 7.21 mg/l after processing with kesudo, cinnamon, and goldenrod respectively hence ecological. The ORP was increased from – 53.4 mV of the original water to + 54.2, + 59.0, and + 57.8 after processing with kesudo, cinnamon and goldenrod respectively. Therefore, the spent solution could be readily renewed or upscaled.
The ATR-FTIR demonstrated strong peaks of carbon-to-carbon triple bond in raw and merino wool yarns treated with kesudo at the wavenumbers 2125.12 cm-1 and 2124.84 cm-1 respectively and whereas in raw cinnamon and its treated merino wool yarns at the wavenumbers 2116.37 cm-1 and 2117.35 cm-1 respectively. Consequently, functionally valuable results were acquired.
The b* values gained with kesudo were 68.61, 22.06 for cinnamon, and 37.25 for goldenrod. The wash fastness rating obtained were good to excellent. Evaluation of functional properties and life cycle analysis is recommended for future work.
Original languageEnglish
Article number100038
JournalCleaner Materials
Early online date11 Jan 2022
Publication statusE-pub ahead of print - 11 Jan 2022


  • Natural fibres
  • natural biomaterials
  • sustainable fashion
  • ethical textiles
  • natural colours
  • herbal fibres


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