METHOD FOR PREPARING PERSONAL CARE COMPOSITION COMPRISING SURFACTANT AND HIGH MELTING POINT FATTY COMPOUND

摘要

Disclosed is a method of preparing a personal care composition, comprising the steps: (1) preparing a hot oil phase comprising the surfactant and the high melting point fatty compound; (2) preparing a cold aqueous phase comprising the aqueous carrier; and (3) mixing the oil phase and the aqueous phase to form an emulsion; wherein the mixing step (3) comprises the following detailed steps: (3-1) feeding either of the oil phase or the aqueous phase into a high shear field having an energy density of 1.0x102 J/m3 or more; (3-2) feeding the other phase directly to the field; and (3-3) forming an emulsion. The method further requires that the surfactant is mono-alkyl cationic surfactant and the composition is substantially free of di-alkyl cationic surfactants.