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

Vicente Hernández, Felipe Galleguillos, Nicole Sagredo, Ángela Machuca
2018 Coatings  
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
more » ... e 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.
doi:10.3390/coatings8020077 fatcat:ou3bkewtezhf3apapxx4j6nwqi