A Study on Simultaneous Fixation of Reactive Dye Printing and Crease Resist Finishing on Cotton Fabric (Effect of DMDHEU Concentration, Types of Catalyst and Drying Conditions)

Abstract

Single step process for simultaneous reactive dyeing and easy care finishing using DMDHEU on cotton fabrics have been investigated by some workers. Reducing the cost of treated fabrics and saving energy is necessary in printing of textiles. So the aim of this work is performing the fixation process for crease resist finishing and printing of reactive dyes on cotton fabrics at the same time. In this study a new process of simultaneous crease resist finishing and reactive dye printing on cotton fabric was performed. Concurrent fixation has some advantages such as economizing energy and at the same time reducing the cost of eliminated processes. It was observed that it is possible to have a good color pick up and at the same time having good crease resistance finishing on cotton fabric. The present work showed that on increasing DMDHEU concentration and also time and drying temperature for resin finishing, DCR (Dry Crease Recovery) and k/s of the dye were improved. On the other hand, the types of catalyst for resin finishing also had the same effect on DCR and k/s. It was found that there is a regression between inverse of k/s and DCR.