Patent ID: 6828358
Filing Date: 2004-12-07
Classification: C09D,G03G

Abstract:
A process of making a liquid ink comprising the steps of:(a) dissolving a first polymer comprising units derived from at least a nitrogen-containing polymerizable monomer in a solvent with a Kauri-Butanol number greater than 30 to form a polymer solution, wherein said nitrogen atom is present in a functional group selected from the group consisting of amine groups; (b) dispersing colorant pigment particles in said polymer solution to form a colorant pigment dispersion; (c) removing at least some of said solvent from said colorant pigment dispersion to form treated colorant pigment particles with an outer layer of the first polymer; and (d) dispersing said treated colorant pigment particles in an organosol containing a second polymer carried in a carrier liquid having a Kauri-Butanol number less than 30.