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Coatings 2018, 8(2), 77; https://doi.org/10.3390/coatings8020077

A Note on the Dyeing of Wool Fabrics Using Natural Dyes Extracted from Rotten Wood-Inhabiting Fungi

1
Biotechnology Center, Universidad de Concepción, Concepción 4030000, Chile
2
School of Science and Technology, Universidad de Concepción, Campus Los Ángeles, Los Ángeles 4440000, Chile
*
Author to whom correspondence should be addressed.
Received: 14 December 2017 / Revised: 7 February 2018 / Accepted: 14 February 2018 / Published: 19 February 2018
(This article belongs to the Special Issue Binders, Pigments, Dyes and Additives)
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Abstract

Fungal isolates obtained from rotten wood samples were identified and selected by their ability to produce fungal dyes in liquid media. Fungal isolates produced natural extracellular dyes with colors ranging from red to orange, yellow and purple. Dyes from two of these fungi, Talaromyces australis (red) and Penicillium murcianum (yellow), were extracted and used to dye wool samples in a Data Color Ahiba IR Pro-Trade (model Top Speed II) machine. The protein nature of wool interacted well with the fungal dyes producing colors suitable for textile applications when used to a concentration of 0.1 g·L−1. Results on color fastness when washing confirmed the affinity of the dyes with wool as the dyed samples kept their color in acceptable ranges after washing, without the implementation of mordanting pretreatments or the use of fixing agents. View Full-Text
Keywords: fungal dyes; Talaromyces; Penicillium; Trichoderma; Fusarium; wool; color fastness fungal dyes; Talaromyces; Penicillium; Trichoderma; Fusarium; wool; color fastness
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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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Hernández, V.A.; Galleguillos, F.A.; Sagredo, N.; Machuca, Á. A Note on the Dyeing of Wool Fabrics Using Natural Dyes Extracted from Rotten Wood-Inhabiting Fungi. Coatings 2018, 8, 77.

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