Abstract:

Both sodium tartrate and potassium sodium tartrate were used as accelerants in dyeing cotton with C. I. Reactive Yellow 84. The influencing factors on dyeing were investigated for the salts. At the same time, accelerating effects of the salts were compared with those of sodium citrate. It was found that the optimal dyeing parameters were as follows: dyeing time 25 min, fixing time 30 min, fixing temperature 85 oC, and concentration of the fixing agent 4-10g/L when sodium tartrate was used as accelerant. Moreover, acceptable accelerating effect could be obtained when the concentrations of all the three salts were 50 g/L. For obtaining the optimal accelarating result, concentrations of sodium tartrate, potassium sodium tartrate, and sodium citrate were 210, 230, 270 g/L respectively. In respect of accelerating result, potassium sodium tartrate surpassed sodium tartrate a little. However, both of them were superior to sodium citrate.