申请人:Canon Kabushiki Kaisha
公开号:EP2891923A1
公开(公告)日:2015-07-08
The purpose of the present invention is to provide a toner exhibiting excellent light resistance. A toner having toner mother particles containing a binder resin, a wax, and a coloring agent, wherein the coloring agent contains a dye compound represented by general formula (1). (In general formula (1), R1 and R2 each independently represent an alkyl group or an acyl group, or R1 and R2 may bind and form a cyclic organic functional group containing a nitrogen atom, to which R1 and R2 bind, as a hetero atom; R3 and R4 each independently represent an alkyl group; R5 and R6 each independently represent an alkyl group or an alkoxy group; R7 represents a hydrogen atom, an alkyl group, or an alkoxy group; and R8 represents an alkyl group.)
本发明的目的是提供一种具有优异耐光性的墨粉。一种墨粉,其墨粉母粒含有粘合剂树脂、蜡和着色剂,其中着色剂含有通式(1)表示的染料化合物。(在通式(1)中,R1 和 R2 各自独立地代表一个烷基或酰基,或 R1 和 R2 可结合并形成一个环状有机官能团,该官能团含有一个氮原子,R1 和 R2 与之结合,作为杂原子;R3 和 R4 各自独立地代表一个烷基;R5 和 R6 各自独立地代表一个烷基或一个烷氧基;R7 代表一个氢原子、一个烷基或一个烷氧基;R8 代表一个烷基)。