ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER

摘要

Provided is an electrostatic charge image developing toner which is capable of forming high-quality images for a long time period.;An electrostatic charge image developing toner, including at least a binder resin, a colorant, and a mold release agent, wherein a coefficient of variation of volume particle size distribution of the toner particles is 18% or less, and in a particle shape distribution analysis made using a flow type particle image analyzer, when an equivalent circle average particle diameter of the toner particles is designated as D (μm), an average aspect ratio of toner particles having an equivalent circle particle diameter in the range of (D−3) to (D−2) (μm) is designated as AR(L), and an average aspect ratio of toner particles having an equivalent circle particle diameter in the range of (D+3) to (D+4) (μm) is designated as AR(H), the relationship represented by the following Expression (1) is satisfied.;[Expression 1];0.110≦AR(L)−AR(H)≦0.250  (1)

主权项

1. An electrostatic charge image developing toner, comprising at least a binder resin, a colorant, and a mold release agent,
wherein a coefficient of variation of volume particle size distribution of the toner particles is 18% or less, and in a particle shape distribution analysis made using a flow type particle image analyzer, when an equivalent circle average particle diameter of the toner particles is designated as D (μm), an average aspect ratio of toner particles having an equivalent circle particle diameter in the range of (D−3) to (D−2) (μm) is designated as AR(L), and an average aspect ratio of toner particles having an equivalent circle particle diameter in the range of (D+3) to (D+4) (μm) is designated as AR(H), the relationship represented by the following Expression (1) is satisfied.
[Expression 1]0.110≦AR(L)−AR(H)≦0.250  (1)