Patent ID: 6106990
Filing Date: 2000-08-22
Classification: G03G

Abstract:
A process for producing toner particles, comprising the steps of:(A) preparing toner precursor particles containing at least binder resin and coloring agent; and(B) spherizing the toner precursor particles to produce toner particles;wherein said spherizing comprises:(i) dispersing said toner precursor particles in an aqueous medium containing a dispersant, thereby preparing a disperse system (a);(ii) dispersing oil droplet particles containing a softening agent into an aqueous medium, thereby preparing a disperse system (b);(iii) preparing a mixed disperse system (c) by adding said disperse system (a) to said disperse system (b), and causing said softening agent to be absorbed by said toner precursor particles in said mixed disperse system (c); and(iv) removing said softening agent from said toner precursor particles.