JOURNAL OF TEXTILE RESEARCH ›› 2016, Vol. 37 ›› Issue (06): 72-75.
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In order to establish low-damage dyeing technology for superfine wool fiber, low temperature dyeing aid Miralan LTD was studied. The influences of the temperature, time and PH value in the dyeing process on fiber bundles, K/S value and color fastness were investigated by single-factor test, and optimum dyeing conditions suitable for low damage Lanasol CE series dyes process of superfine wool were obtained as follows: dyeing temperature of superfine wool was 90 ℃, processing time was 70 min and PH value kept at 4.0. The experimental results showed that the combination of the dyeing agent Miralan LTD and reactive dyes Lanasol CE, not only has realized the low temperature dyeing of wool fiber, but also has better dyeing percentage and simple machining technology; at the same time, the breaking strength was improved, and the wool fiber’s damage was reduced. Under this processing condition, exhaustion rate of superfine wool was high than 98 %, levelness is good and color fastness reach grade 4 above, which can satisfy the requirement of the subsequent process.
Key words: superfine wool, low temperature dyeing, damage, K/S value, color fastness
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