Abstract
In the present study, simultaneous reactive dyeing and easy care finishing of cotton with a non-formaldehyde and environment-friendly compound (citric acid [CA]) was successfully optimised using a statistical model. An optimised recipe was formulated based on the half factorial central composite design and numerical optimisation solution by Design-Expert 6.0 software. The optimised conditions were investigated for the concentration of CA, catalyst, reactive dye, alkali and urea. Evaluation of the recipe was made with respect to K/S, percent fixation of reactive dye, dry crease recovery angle and tensile strength. The simultaneous dyeing and finishing using theoretical optimised recipe was carried out and performance of the sample was compared with the sample using conventional two-step dyeing and finishing process.
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