YELLOW ELECTROSTATIC DEVELOPING TONER, DEVELOPER FOR ELECTROSTATIC DEVELOPMENT, METHOD OF PRODUCING ELECTROSTATIC DEVELOPING TONER, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To improve color reproducibility of a yellow electrostatic developing toner. SOLUTION: The yellow electrostatic developing toner includes: binder resin particles that do not contain a colorant or a release agent and has a shape factor SF1 of 110 or less, the number of the binder resin particles being 50 or less per 5,000 electrostatic developing toner particles; inorganic particles that have a median diameter of 5 nm or more and 70 nm or less by 0.01 mass% or more and 0.4 mass% or less with respect to the mass of the electrostatic developing toner; and a yellow colorant that has an azo group as a colorant. COPYRIGHT: (C)2011,JPO&INPIT