Disclosed is a process for preparing a phase change ink composition which
comprises (a) a phase change ink carrier, said carrier comprising at
least one nonpolar component and at least one polar component, and (b)
pigment particles, said process comprising (1) selecting at least one of
the polar carrier components to be a pigment particle dispersant; (2)
admixing the pigment particles with the dispersant; (3) extruding the
mixture of pigment particles and dispersant in an extruder at a
temperature that is at or above about the peak crystallization
temperature of the dispersant and below about the peak melting
temperature of the dispersant, thereby forming a pigment dispersion; (4)
subsequent to extrusion of the pigment dispersion, adding to the pigment
dispersion any remaining polar components and the nonpolar component; and
(5) subjecting the resulting mixture of pigment dispersion, polar
component, and nonpolar component to high shear mixing to form an ink.