Abstract
In nature, enzymes catalyse the oxidation of phenols to produce quinonic compounds which are deeply coloured. In this study, the same process was mimicked for colouration of wool. Oxidative polymerisation of catechol was carried out in situ by combining fresh potato juice (enzyme source) with catechol (phenol) to synthesise a range of fast colours. Effect of process variables, namely concentration, time and temperature of treatment on colour value was studied. The unique property of this process is that besides colouration, it improves the mechanical properties and imparts value added properties such as antioxidant and improved moisture management to wool. As the process is based on use of unrefined plant juice instead of purified enzymes it is more economical and ecofriendly. The study opens up an area for exploration of local plant sources for a clean process of colouration.
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