Abstract
Dyeing of wool fabrics with conventional acid dyes in a supercritical CO 2 has been investigated using a reverse micellar system. A reverse micelle composed of perfluoro 2,5,8,11-tetramethyl-3,6,9,12-tetraoxapentadecanoic acid ammonium salt/CO 2/water had a high potential to solubilize conventional acid dyes and to dye wool fabrics in this system. It has found that dyeability of the acid dye on wool in this system take no influence of the density of CO 2. On the other hand, variation of dyeing temperature resulted in the remarkable differences of the dyeability of the acid dye on wool even though the solubility of dye in the system was not varied by the variation of temperature.
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