TY - JOUR ID - 649 TI - Green Process for Indigo Dyeing: Effect and Modeling of Physico-chemical Parameters Using Statistical Analysis JO - International Journal of Environmental Research JA - IJER LA - en SN - 1735-6865 AU - Ben Ticha, M. AU - Meksi, N. AU - Kechida, M. AU - Mhenni, M.F. AD - Research Unit of Applied Chemistry and Environment, Faculty of Sciences of Monastir, 5000 Monastir, Tunisia AD - Research Unit of Applied Chemistry and Environment, Faculty of Sciences of Monastir, 5000 Monastir, Tunisia. Higher Institute of Fashion of Monastir, 5019 Monastir, Tunisia AD - Textile Industrial Company (SITEX), 5070 Ksar Hellal, Tunisia Y1 - 2013 PY - 2013 VL - 7 IS - 3 SP - 697 EP - 708 KW - Eco-friendly KW - Reducing process KW - Indigo dyeing KW - Acetol KW - Statistical analysis DO - 10.22059/ijer.2013.649 N2 - Textile Industries use different chemicals in indigo dyeing processes. Interest in eco-friendlyprocessing in the textile industry has recently increased because of a larger awareness of environmental issues. For the case of indigo dyeing process, the reducing agent conventionally used is the - environmentally unfavourable – sodium dithionite, which will be replaced in this study with an ecological reducing agent called acetol that is also known as hydroxyacetone. In this paper, measurements of the redox potential at various experimental conditions were carried out in a dyeing bath, where acetol is the reducing agent of indigo. Moreover, an unconventional but eco-friendly indigo dyeing process of cotton was investigated. The effects of: reduction duration, dyeing duration, reduction temperature, alkalinity and the amount of indigo on the performances of this dyeing process were studied, and the dyeing results were evaluated by measuring the colour yield parameter (K/S) of the dyed samples at 660 nm. Finally, a factorial design was employed for the experimental plan; mathematical model equation and statistical analysis were derived by computer simulation applying the least squares method using Minitab 15. UR - https://ijer.ut.ac.ir/article_649.html L1 - https://ijer.ut.ac.ir/article_649_181ca29ab363b24b69020bd5d2a87833.pdf ER -