Method for producing toner particles

摘要

A method for producing toner particles by a suspension polymerization method or a dissolution suspension method comprising: applying an inorganic dispersion stabilizer-containing liquid (liquid A) to a part that can come into contact with a polymerizable monomer composition or toner particle composition, the part being on an inner wall of a vessel used in a polymerization step or a vessel used in a solvent removal step; after the application of the liquid A, carrying out the polymerization step or solvent removal step; discharging the contents of the vessel after the completion of this polymerization step or solvent removal step; and after the contents of the vessel have been discharged, bringing an acidic aqueous solution (liquid B) to dissolve the inorganic dispersion stabilizer into contact with the inner wall of the vessel.

主权项

1. A method for producing toner particles comprising the steps of:
(1) providing an aqueous dispersion in which particles are dispersed in an aqueous medium, the particles containing
(i) a polymerizable monomer and a colorant, or(ii) a mixed solution in which
a toner particle composition comprising a binder resin and a colorant, and an organic solvent, are contained, the toner particle composition being dissolved or dispersed in the organic solvent, (2) introducing the aqueous dispersion into a vessel, and (3) obtaining the toner particles by
(i) polymerizing the polymerizable monomer in the particles, or(ii) removing the organic solvent from the mixed solution in the particles, (4) removing a content in the vessel after the step (3), wherein, the method further comprises
a step of applying an inorganic dispersion stabilizer containing liquid (liquid A) and attaching the inorganic dispersion stabilizer to a part of an inner wall of the vessel, prior to introducing the aqueous dispersion into the vessel in the step (2), the part of the inner wall of the vessel including a portion where the aqueous dispersion which is to be introduced in the step (2) is come into contact with, anda step of removing the inorganic dispersion stabilizer attached to the part of the inner wall of the vessel by using an acidic aqueous solution (liquid B) after the step (4).