MAGENTA TONER CONTAINING COMPOUND HAVING AZO SKELETON

摘要

An object of the present invention is to provide a magenta toner having improved dispersibility of a magenta pigment in a binder resin and a high coloring ability, enabling suppression of fogging, and having high transfer efficiency. The object can be attained by a toner including toner particles containing a binder resin, a compound having an azo skeleton bound to a polymeric portion, and a magenta pigment as a colorant.

主权项

1. A magenta toner comprising toner particles each of which comprises
a binder resin; a compound having a partial structure and a polymeric portion having a monomer unit, the partial structure being bound to the polymeric portion; and a magenta pigment as a colorant, wherein the partial structure is represented by the following formula (1): [wherein at least one of R1, R2, and Ar is bound to the polymeric portion with a linking group or a single bond; R1 not bound to the polymeric portion and R2 not bound to the polymeric portion each independently represent an alkyl group, a phenyl group, an OR5 group, or an NR6R7 group; Ar not bound to the polymeric portion represents an aryl group; R1 bound to the polymeric portion and R2 bound to the polymeric portion each independently represent a divalent group of which a hydrogen atom is removed from an alkyl group, phenyl group, OR5 group, or NR6R7 group; Ar bound to the polymeric portion represents a divalent group of which a hydrogen atom is removed from the aryl group; and R5 to R7 each independently represent a hydrogen atom, an alkyl group, a phenyl group, or an aralkyl group; and the monomer unit being represented by the following formula (2): wherein R3 represents a hydrogen atom or an alkyl group; and R4 represents a phenyl group, a carboxyl group, a carboxylic acid ester group, or a carboxylic acid amide group].