Abstract
AbstractThe conventional denim washing process is considered to be the most polluting in the textile industry. This sector uses huge amounts of water, energy and chemicals, and generates a lot of wastewater with a high pollution load. For this reason, other types of washing treatment have been discovered. Among these treatments, we can specify the ozone treatment, which is sustainable and economical. In this study, ozone treatment was applied to denim fabric samples to improve the effect of the washing conditions on the appearance and physical characteristics of the fabrics. Bagging resistance, force at break, shrinkage, spectroscopy testing, rubbing fastness evaluation and Fourier Transform–infrared analysis of the treated and untreated denim fabrics (which did not undergo desizing treatment) were analysed and investigated. To study the individual and main effects and significance of input parameters, the Taguchi design was used. Based on the obtained results, ozone treatment increased the whiteness value of treated fabrics. Moreover, it induced certain changes to the physical, mechanical and bagging properties of denim fabrics. The loss of force at break and the percentage of shrinkage reached 30.11% and 15.15%, respectively. The bagging resistance indicated a significant decrease of up to 40.17% after ozone treatment.
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