The Adsorption of Monobasic Acid Dyes by Chlorinated Wool Fiber

염소화 양모에 의한 1염기성 산성염료의 흡착

The adsorption of monobasic acid dyes, C.I. Acid Orange 7 and C.I. Acid Blue 78, on normal wool and chlorinated wool has been investigated, Single and binary combination of free dye acids were used. The dye affinities for wools are calculated from modified Gilbert-Rideal's equation. The chorinated wool shows an increase in amount of dye adsorbed at equilibrium. The affinities of dye anions of Orange 7 and blue 78 calculated from single dyeings are 4.1 kcal/mole and 6.7 kcal/mole for chlorinated wool. But binary combination of free dye acids tends to raise the apparent affinity of less strongly adsorbed Orange 7 and to lower that of the more strongly adsorbed Blue 78 for both normal and chlorinated wool.