Patent ID: 8546055
Filing Date: 2013-10-01
Classification: G03G

Abstract:
1. A toner comprising: (I) a binder resin, (II) a releasing agent, and (III) a colorant, wherein the binder resin (I) comprises polyester resin (A), polyester resin (B), and polyester resin (C), which is prepared by condensation-polymerizing (i) an alcohol component comprising an alkylene oxide adduct of a bisphenol compound represented by formula (1) wherein at least one of the polyester resin (A) and the polyester resin (B) is a polyester resin prepared by condensation-polymerizing (i) the alcohol component comprising at least one aliphatic alcohol and comprising 1,2-propanediol in an amount of 65 mole % or more of a divalent alcohol component and (ii) the carboxylic acid component; and wherein a softening point Tm(A) of the polyester resin (A) is 10° C. or more higher than a softening point Tm(B) of the polyester resin (B), and an absolute difference between a softening point Tm(C) of the polyester resin (C) and the softening point Tm(B) of the polyester resin (B) is 5° C. or less.