Abstract: In order to improve the dyeability of jute/cotton blended fabric and achieve low salt and low alkali dyeing with reactive dyes. The cationic modification and dyeabilities of jute /cotton blended fabric were studied in this paper. The results showed that the optimum modification conditions were as follows: Glytac 40 g/L, sodium hydroxide 8 g/L, JFC 2 g/L, temperature 60 ℃, time 45 min and fiber to liquor ratio1︰20. It also can be seen from the results that Glytac modification could reduce the dosage of electrolyte salt and alkali during the reactive dyes dyeing process and the dyeing temperature, increase dye utilization percentage, improve washing fastness and rubbing fastness. And there is no effect on light fastness.

Key words: cationic modification, jute/cotton blended fabric, dyeability, color fastness