Patent ID: 8865387
Filing Date: 2014-10-21
Classification: G03G

Abstract:
1. A method for preparing toner composition having monomers for forming a binder resin, colorings, dispersion stabilizers, charge control agents, wax, polar resins or polar monomers, wherein the method comprises: (1) preparing an inorganic dispersion medium to obtain a first liquid; (2) dispersing and dissolving a polymerizable monomer mixture to obtain a second liquid; (3) micronizing the second liquid obtained in step (2) in the first liquid obtained in step (1) with high shear force in order to create droplets; (4) forming first suspension toner particles by performing radical polymerization of the micronized droplets obtained in step (3); (5) aggregating particles obtained in step (4) in the presence of an aggregation agent; (6) fusing the aggregated particles obtained in step (5) by heat; (7) forming final toner particles by cleaning and drying the fused particles obtained by step (6); and (8) adding additives to impart electrification and fluidity to the final toner particles obtained by step (7), wherein, A is a grain diameter (D50(A)) of the first suspension toner particles; and B is a grain diameter (D50(B)) of the final toner particles.