Patent ID: 9665024
Date: 2017-05-30
CPC Classifications: G03G

Claim:
1. A toner, comprising toner particles containing a coloring agent, a binder resin, and an ester wax, wherein the coloring agent contains at least one pigment (X) selected from C.I. Pigment Red 48, C.I. Pigment Red 48:1, C.I. Pigment Red 48:2, C.I. Pigment Red 48:3, C.I. Pigment Red 48:4, and C.I. Pigment Red 48:5, and C.I. Pigment Red 122 (Y), the mass ratio of the component (X) to the component (Y) is as follows: X:Y=30:70 to 60:40, the ester wax is composed of two or more ester compounds represented by the following general formula (I) and having different carbon numbers, the carbon number (C the content of ester compounds having a carbon number of less than 40 in the ester wax is from 0.1 to 10% by mass of the total mass of the ester wax, and the ester wax satisfies the following formulae (1) and (2): wherein R 1 and R 2 in the formula (I) each represent an alkyl group, and the total carbon number of R 1 and R 2 is from 31 to 53, wherein a in the formula (1) represents the content of the ester compound having a carbon number of (C n1 ) in the ester wax, and b represents the total content of ester compounds having a carbon number of 40 to 44 in the ester wax, and wherein a in the formula (2) is the same as a in the formula (1), and c represents the total content of ester compounds having a carbon number exceeding 44 in the ester wax.