Influence of Auxiliaries in Dyeing of Wool with Acid Dyes

摘要

The influence of ionic auxiliaries on absorption of the Acid milling CI Acid Blue 80 (Sandolan Milling Blue N-BL 150) dye on wool fibre and on the colour changes of the dyed fabric has been investigated. The motivation behind this work is possible reduction in the dyeing temperature of conventional dyeing. The absorption and the colour characteristics of dyed fabric, including light and washing fastness were examined. An anionic and cationic auxiliaries based on Lissapol D (ICI), the sodium salt of cetyl-oleylsulphate and dispersol (CWL), an ethylene oxide-amine condensate respectively, enable dyeing at low temperature. Colour characteristics and improvement in light and wash fastness of the dyed fabrics was achieved. The variation of hue and levelness due to the use of these auxiliaries or the difference in dyeing temperatures is reported.