(under the class definition) Processes and compositions involving dye compositions in a two-phase system or wherein a change of phase occurs.
(1) Note. Included herein are, e.g., systems where the dye precipitates as it loses solubility or dissolves as it gains solubility. i.e., change of phase, dye distributing between two different phases as in an emulsion, preparation of dye compositions wherein dye is being forced into a phase of an emulsion, etc.
