Dyeing clothe in conical pan

Dyeing of cotton fabric


Cover imageReactive dyeing of cotton material requires large concentration of tiring representative (salt).

Despite the inclusion of salt only 65–70% of this dyes get fatigued, continuing to be dyes eliminated as a colored effluents.

Exterior adjustment of cotton happens to be performed utilizing cationic broker CHPTAC by exhaust technique.

Salt-free dyeing at commercial scale has-been achieved in addition to results declare that the suggested strategy can be taken right by the hosiery dyeing units.

Reactive dyes tend to be many favored dyes for dyeing of cellulosic fibres since they are chemically fused on fiber that will be becoming colored and in addition cost effective to apply. Although application of reactive dyes on the cellulosic products requires a rather high concentration of sodium since fiber and dyes are anionic in nature. Even with needed amount of sodium just 65–70% of reactive dyes tend to be fatigued, continuing to be 25–30% of dyes tend to be removed as a coloured effluent after dyeing. Today's work aims to expel salt use into the reactive dyeing of cellulosic material, particularly in cotton hosiery fabrics dyeing business. In this study, the cationization of cotton fiber textile ended up being done by differing focus of cationic agent from 20 to 60 g/L by an exhaust strategy using the goal to reach 100percent dye usage and fixation during salt-free reactive dyeing process. All the dyes taken when it comes to research showed excellent dye exhaustion, fixation and color power properties regarding cotton textiles.

Keywords

  • Reactive dyes;
  • Salt;
  • Cationized cotton fiber;
  • Exhaust method;
  • Salt-free reactive dyeing;
  • Dye usage


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