The solubility of different polar dyes in supercritical carbon dioxide and ethane (scCO(2) and scC(2)H(6)), both modified and unmodified with various surfactants and solvents was determined at temperatures from 323-373 K and in pressure range from 10-45 MPa. The solubility data were correlated with some empirical equations. Furthermore, dyeing experiments with wool and cotton dyes were conducted in order to characterize the impact of modifiers on the dyeing procedure and coloring properties and to prove the practicability of modified fluid systems for commercial procedures.