申请人:Canon Kabushiki Kaisha
公开号:EP2891924A1
公开(公告)日:2015-07-08
The present invention provides a toner excellent in light resistance. The toner includes toner base particles, each of which contains a binder resin, a wax and a coloring agent, and a coloring matter compound represented by the general formula (1) is contained as the coloring agent.
wherein R1, R2 and R6 each independently represent an alkyl group, R3 to R5 each independently represent an alkyl group, or satisfy either of the following conditions i) and ii):
i) R3 and R4 are bonded to each other, so as to form a cyclic organic functional group containing R3, R4 and a carbon atom bonded simultaneously to R3 and R4, and R5 represents an alkyl group; and
ii) R3 to R5 are bonded to one another, so as to form a cyclic organic functional group containing R3, R4, R5 and a carbon atom bonded simultaneously to R3 to R5; and
R7 and R8 each independently represent an alkyl group or an acyl group, or R7 and R8 are bonded to each other, so as to form a cyclic organic functional group containing R7, R8 and a nitrogen atom bonded simultaneously to R7 and R8.
本发明提供了一种耐光性极佳的墨粉。该调色剂包括调色剂基粒,每个基粒都含有粘合剂树脂、蜡和着色剂,并含有通式(1)表示的着色剂化合物作为着色剂。
其中 R1、R2 和 R6 各自独立地代表一个烷基,R3 至 R5 各自独立地代表一个烷基,或满足以下条件 i) 和 ii) 中的任一条件:
i) R3 和 R4 相互键合,从而形成一个环状有机官能团,该官能团包含 R3、R4 以及同时与 R3 和 R4 键合的一个碳原子,且 R5 代表一个烷基;以及
ii) R3 至 R5 相互键合,从而形成一个环状有机官能团,该官能团包含 R3、R4、R5 以及同时与 R3 至 R5 键合的一个碳原子;以及
R7 和 R8 各自独立地代表一个烷基或酰基,或者 R7 和 R8 相互键合,从而形成一个环状有机官能团,该官能团包含 R7、R8 以及同时与 R7 和 R8 键合的一个氮原子。