Life Cycle Assessment for the Dyeing and Finishing Process of Organic Cotton Knitted Fabrics

K. Babu Murugesh, M. Selvadass

Abstract


This paper summarizes the results of the life cycle assessment (LCA) for dyeing and finishing process involved in development of 1 ton, 2/40’s, 100% organic cotton single jersey knitted fabrics. Results show that the environmental impact of the dyeing and finishing process of knitted fabrics is primarily due to the method of dyeing process adopted, the dye quantity used to obtain the required color and color strength, electricity and compressed air use, the burning of wood in the industrial boiler for production of steam, the operation of an effluent treatment plant to treat process effluent and transport of chemicals. The environmental impact observed for dyeing fabric in softflow dyeing machine and non-silicate CPB dyeing method remains same, however, the intensity is greatly reduced in non-silicate CPB dyeing method. The environmental impact of finishing process is mainly due to use of softener, burning of wood in boiler for production of steam, use of compressed air and electricity.

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