a washing process using one or more ionic liquids as a washing aid agent for toners , including toners produced using such ils , such as , low melt toners , is provided . ils are environmentally sound , green solvents that act to swell toner particle surfaces so that surface absorbed and adsorbed pollutants , such as , surfactants and other manufacturing reactants , can be effectively removed . the resulting toners have good charging , charge maintenance and rh sensitivity .