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Synthesis of Plant Phenol-derived Polymeric Dyes for Direct or Mordant-based Hair Dyeing
Published on: December 1, 2016
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Eco-dyeing with biocolourant based on natural compounds
Fubang Wang1,2, Jixian Gong1,2, Yanfei Ren1,2
1School of Textiles, Tianjin Polytechnic University, Tianjin 300387, People's Republic of China.
Royal Society Open Science
|February 8, 2018
Summary
This study demonstrates sustainable fabric dyeing using tea polyphenol biopigments. The natural dyeing process yields vibrant wool fabrics with excellent colorfastness and reusability of the dyeing liquor.
Area of Science:
- Sustainable Chemistry
- Textile Science
- Biomaterials
Background:
- Synthetic dyes pose environmental concerns.
- Biomass pigments offer eco-friendly alternatives for textile coloration.
- Tea polyphenols are abundant natural compounds with dyeing potential.
Purpose of the Study:
- To investigate the in situ dyeing of fabrics using biopigments from tea polyphenols.
- To evaluate the dyeing efficiency and fastness properties of tea polyphenol-derived dyes.
- To explore the potential for reusing the dyeing liquor in a non-enzymatic browning reaction.
Main Methods:
- Fabric dyeing using biopigments derived from tea polyphenols via non-enzymatic browning.
- Analysis of particle size of the dyed residual liquor.
- Evaluation of color intensity (Integ value) and fastness properties (rubbing and washing) of dyed wool fabrics.
Main Results:
- The average particle size of the tea polyphenol dyed residual liquor was 717.0 nm.
- Dyed wool fabrics achieved the highest Integ value compared to controls.
- Residual liquor showed superior dyeing performance, enabling multiple dyeing cycles with excellent rubbing and washing fastness.
Conclusions:
- Tea polyphenol biopigments are effective for sustainable and clean fabric dyeing.
- The non-enzymatic browning reaction provides a viable method for generating these dyes.
- The developed dyeing process offers excellent colorfastness and resource efficiency through liquor reuse.
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