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July 26, 2026Scientific ReportsOpen Access

Valorization of mahogany sawdust waste for dyeing of cotton knitted fabrics using aloe vera and banana sap bio-mordants

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Authors

TITarikul IslamTITarikul IslamMIM. R. Islam

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Overview

Randomized trial explores sustainable dyeing with mahogany sawdust and bio-mordants in cotton fabrics, indicating improved durability.

Key Points

  • This study aims to evaluate mahogany sawdust as a natural dye for cotton fabrics using bio-based mordants.
  • Mahogany sawdust was extracted by heating with water and used for dyeing cotton knitted fabrics.
  • Aloe vera and banana sap served as bio-mordants and were applied through pre-mordanting at 100 °C for 60 min.
  • Dye absorption and fastness properties were assessed post-treatment.
  • The highest color strength value of 7.1 was achieved using the aloe vera and banana sap combination.
  • Washing fastness improved from 2-3 to 3-4, and wet rubbing fastness increased from 2-3 to 3-4 with bio-mordants.
  • Saliva fastness ratings for color change were 3-4 and for staining, 4-5, indicating good color resistance.

Cite This Study

Islam et al. (2026) studied this question.

synapsesocial.com/papers/6a65a3a3d3aea3239cd76a20https://doi.org/10.1038/s41598-026-62532-0
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