Method for preparing functional particulate organic material, toner using the functional particulate organic material, and image forming method and apparatus using the toner

摘要

Preparing (M1) a functional particulate organic material (a1) involves first reacting a tri or polyvalent metal cation with a suspension of particulate organic material (a1) containing an acid group on a surface; and second reacting an organic acid and/or its salt with the metal cation. Independent claims are included for the following: (1) a toner comprising toner particles (P2) comprising a colorant and a binder resin having an acid group, and a fluidity improving agent. The acid group is bonded to a metal cation with tri- or more-valence, and the metal cation is bonded to an organic acid or its salt; (2) formation of an image involving developing an electrostatic latent image on an image-bearing member with color toner to form a color toner image on the image-bearing member; transferring the toner image on a receiving material; and fixing the toner image on the receiving material; and (3) a process cartridge comprising a developer container containing a developer comprising the toner and at least one member selected from an image bearing member, charger configured to charge the image bearing member to form an electrostatic latent image, developing device configured to develop the electrostatic latent image with the developer to form a toner image on the image-bearing member or cleaner configured to clean a surface of the image bearing member.