High amounts of reducing chemicals are consumed at present in dyeing processes when applying vat dyes, indigo and sulfur dyes. The introduction of electrochemical methods allows a substitution of these chemicals and offers the possibility for improved process control coupled to economic and ecological advantages. This substitution can be achieved by direct and indirect cathodic electron transfer. The basic investigations and resulting technical concepts for different applications of electrochemical reduction processes in textile dyeing are reviewed in this article. Redox processes are involved into many steps in dyeing and finishing of textiles. The need for advanced techniques for process control led to the development of different analytical methods. Electroanalytical methods for process control in textile production are summarised.
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