Abstract
'I'he dyeing properties of modified wools containing internally deposited acrylic polymers with Acid Blue 45, Basic Blue 1, Disperse Blue 1, Reactive Red 4, and Reactive Orange 29 have been investigated at 60°C over 90-min dyeing , periods. In most cases, the acrylic polymers deposited within the wool matrix increased both the rate of dye uptake and the percentage of dye exhausted onto the wool. Also, chemical fixation of the reactive dyes was markedly increased by the presence of polymer within the wool. The nature of the side chain on the acrylic polymer appeared to have little systematic effect on the dyeing properties of the fibers, with the exception of poly (acrylic acid) which tended to retard dye uptake where the internal pH within the fiber during dyeing was an important factor.
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