Method for producing resin particle dispersion, method for producing toner for electrostatic image development, and toner for electrostatic image development

A method for producing a toner for electrostatic image development, the method comprising:

• producing a resin particle dispersion by using a resin particle dispersion production apparatus including:
• two or more resin particle dispersion production lines each including an emulsification tank in which a resin is subjected to phase inversion emulsification using two or more organic solvents and an aqueous medium to thereby obtain a phase-inverted emulsion, a distillation tank in which the organic solvents are removed from the phase-inverted emulsion by reduced pressure distillation to thereby obtain a resin particle dispersion, and a plurality of distillate collection tanks that collect distillates formed during the reduced pressure distillation according to respective target distillate compositions;
• and
• a reusable distillate storage tank A that collects and stores a distillate collected in at least one distillate collection tank A among the distillates collected in the plurality of distillate collection tanks in each of the two or more resin particle dispersion production lines,
• wherein the distillate collected in the reusable distillate storage tank A is delivered to the emulsification tank in at least one resin particle dispersion production line among the two or more resin particle dispersion production lines to reuse the distillate for production of a phase-inverted emulsion in the at least one resin particle dispersion production line;
• forming aggregated particles by aggregating the resin particles;
• and fusing and coalescing the aggregated particles by heating an aggregated particle dispersion containing the aggregated particles dispersed therein to thereby form toner particles.