Research into the process of dyeing polyester /cotton fabrics using Two disperse/Reactive dyes were synthesized by coupling diazotized N-Ethyle-N-B-Vinylsulphonylethylaniline dyestuffs one batch processes dyeing. In order to improve the different pH and temperature and concentration on the uptake cotton and polyester to dye batch in 90°C. Cotton and polyester fabrics were dyed by reactive /disperse dye 1 and 2 in the dye batch various pH values. Both dyes were exhaustion and fixation over a pH range 6 to 8. The effect of dye concentration on the uptake of dye 1by cotton and polyester was examined and the result are shown in figures. Exhaustion and fixation increased slowly at lower dye concentration and increased somewhat at higher dye concentration.

Key words: cotton/polyester fibers, reactive/disperse dyes


Cotton, Owing to its characteristic and excellent physical and chemical properties, has long found use as a textile fiber. Cotton can also be blended with synthetic fibers to produce a wide rang of materials. These blends are most economically dyed in one batch, in order to save water and energy. In practice, one batch dyeing is used for cotton/polyester, cotton/ silk, cotton/wool fibers. In the present study an attempt was made to overcome same of these problems by dyeing cotton/polyester with sulphatoethylsulphonyl reactive/disperse dyes.

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This article was originally presented in ATNT 2007 held on 18-20, June 2007 at Kumaraguru College of Technology, Coimbatore, India. H. Najafi, E.Yzdanshenas & A.Rashidi are associated with Islamic Azad University Science and Research Branch, Tehran, Iran & F.Normohammadian is associated with Departments, Iran Color Research Center, Tehran, Iran