Patent ID: 8658339
Filing Date: 2014-02-25
Classification: C07C,G03G

Abstract:
1. A toner for developing electrostatic charge images, wherein the toner comprises 0.1 to 10 parts by mass of a negative charge controlling agent per 100 parts by mass of a binder resin; and the negative charge controlling agent comprises polycondensation product obtained by polycondensation reaction of phenols and aldehydes, and the phenols comprise a (A) mononucleus phenolic compound which has one phenolic hydroxy group in which a hydrogen is bonded at the ortho position of a hydroxyl group of the phenolic hydroxy group; and a (B) multinucleus phenolic compound which has at least two phenolic hydroxy groups in which a hydrogen is bonded at the ortho position of a hydroxyl group of each of the at least two phenolic hydroxy groups of the (B) multinucleus phenolic compound; and the content of the (B) phenolic compound in the phenols is 1 to 30 mol %.