Pigment flushing

In the method for transferring an organic pigment from an aqueous pulp of the pigment to a water-immiscible hydrophobic organic vehicle by mixing said aqueous pulp and said vehicle until a major portion of the water present in said pulp separates, the improvement to achieve low initial viscosity, good shelf stability, and good tint strength comprising incorporating, in an amount effective to achieve said results, at least one additive selected from the class consisting of sulfonated sperm oil, sulfated sperm oil, and mixtures thereof with said vehicle and said pigment.