Union dyeing of cotton/wool blend with hetero bi-functional reactive dyes, namely CI Reactive Yellow 145, CI Reactive Red
194, and CI Reactive Red 195 is obtained using one-bath and two-bath dyeing processes. The results obtained are compared
with those obtained by conventional two-bath dyeing process. Factors affecting the dyeability, such as the amount of sodium edate,
sodium sulphate, temperature and dye concentration are investigated. The dyed fabrics were evaluated with respect to the dye exhaustion
and fixation, levelling and the fastness properties. Excellent to good fastness was obtained for all samples irrespective of the
dyeing method. The result of investigation offers a new viable method for union dyeing by using sodium edate two-bath and onebath
processes with a better levelling and dye uptake.
2005 Elsevier Ltd. All rights reserved.
Union dyeing of cotton/wool blend with hetero bi-functional reactive dyes, namely CI Reactive Yellow 145, CI Reactive Red
194, and CI Reactive Red 195 is obtained using one-bath and two-bath dyeing processes. The results obtained are compared
with those obtained by conventional two-bath dyeing process. Factors affecting the dyeability, such as the amount of sodium edate,
sodium sulphate, temperature and dye concentration are investigated. The dyed fabrics were evaluated with respect to the dye exhaustion
and fixation, levelling and the fastness properties. Excellent to good fastness was obtained for all samples irrespective of the
dyeing method. The result of investigation offers a new viable method for union dyeing by using sodium edate two-bath and onebath
processes with a better levelling and dye uptake.
2005 Elsevier Ltd. All rights reserved.
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