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Polymers 2018, 10(2), 196;

Preparation of Biocolorant and Eco-Dyeing Derived from Polyphenols Based on Laccase-Catalyzed Oxidative Polymerization

School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
Key Laboratory for Advanced Textile Composites of the Education Ministry of China, Tianjin 300387, China
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Received: 4 January 2018 / Revised: 11 February 2018 / Accepted: 11 February 2018 / Published: 15 February 2018
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Natural products have been believed to be a promising source to obtain ecological dyes and pigments. Plant polyphenol is a kind of significant natural compound, and tea provides a rich source of polyphenols. In this study, biocolorant derived from phenolic compounds was generated based on laccase-catalyzed oxidative polymerization, and eco-dyeing of silk and wool fabrics with pigments derived from tea was investigated under the influence of pH variation. This work demonstrated that the dyeing property was better under acidic conditions compared to alkalinity, and fixation rate was the best when pH value was 3. Furthermore, breaking strength of dyed fabrics sharply reduced under the condition of pH 11. Eventually, the dyeing method was an eco-friendly process, which was based on bioconversion, and no mordant was added during the process of dyeing. View Full-Text
Keywords: biocolorant; laccase; dyeing; pH value; oxidative polymerization biocolorant; laccase; dyeing; pH value; oxidative polymerization

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Wang, F.; Gong, J.; Zhang, X.; Ren, Y.; Zhang, J. Preparation of Biocolorant and Eco-Dyeing Derived from Polyphenols Based on Laccase-Catalyzed Oxidative Polymerization. Polymers 2018, 10, 196.

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