Method for producing toner for developing electrostatic charge image, toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

A method for producing a toner for developing an electrostatic charge image, the method comprising:

• preparing a dispersion that comprises first resin particles comprising a physical mixture of amorphous resin particles and crystalline resin particles;
• forming first aggregated particles at a pH of less than 7.0 by adding an aggregating agent to the dispersion so as to aggregate the first resin particles;
• forming second aggregated particles by adding second resin particles comprising amorphous resin particles containing a polycondensation resin to the dispersion that has undergone the forming of the first aggregated particles so as to aggregate the second resin particles onto the first aggregated particles;
• adjusting a pH of the dispersion that has undergone the forming of the second aggregated particles to 7.0 or more so as to prepare a dispersion of aggregated particles in which aggregation of the resin particles has been terminated;
• adding an anionic surfactant to the dispersion of aggregated particles in which aggregation of the resin particles has been terminated and having a pH adjusted to 7.0 or more;
• and
• forming core-shell toner particles by heating the dispersion comprising the anionic surfactant so as to fuse and coalesce the aggregated particles in which aggregation of the resin particles has been terminated,
• wherein releasing agent particles are added to the dispersion during the preparing of the dispersion or during the forming of the second aggregated particles, or during both the preparing of the dispersion and the forming of the second aggregated particles.