Toner, development agent, and image forming apparatus

摘要

Toner containing a binder resin that contains at least one kind of resin having a crystalline polyester unit as its main component and a releasing agent containing a straight-chain mono ester having 48 or more carbon atoms accounting for 40% by weight or more of the releasing agent.

主权项

1. Toner comprising:
a binder resin comprising at least one resin comprising a crystalline polyester unit as a main component; and a releasing agent comprising a straight-chain mono ester having 48 or more carbon atoms accounting for 40% by weight or more of the releasing agent, wherein a ratio of ΔH(H)/ΔH(T) ranges from 0.2 to 1.25, where ΔH(T) represents an endothermic amount of the toner as measured by a differential scanning calorimeter and ΔH(H) represents an endothermic amount of an insoluble portion of the toner in a liquid mixture of ethyl acetate and tetrahydrofuran (THF) having a mixing ratio of 1:1 as measured by a differential scanning calorimeter.