Toner and method for producing the same
AssigneeToshiba Tec Kabushiki Kaisha
InventorsTakafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Motonari Udo, Kazuhisa Takeda
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Abstract
Provided is a method for producing a toner including: aggregating colorant particles and release agent particles, thereby forming aggregates containing the colorant particles and the release agent particles; aggregating binder resin particles and the obtained aggregates containing the colorant particles and the release agent particles, thereby forming toner particle precursors; and aggregating and fusing the obtained toner particle precursors, thereby forming toner particles, wherein when the average circularity of the toner particles is represented by Rt, Rt satisfies the following formula (1): 0.85≦Rt≦0.92 (1).
Claims16
A decolorizable toner, comprising toner particles including a binder resin and colorant particles which contain a color developable compound, a color developing agent, and a decolorizing agent, and have a capsule structure coated with an outer shell, wherein when the average circularity of the toner particles is represented by Rt, Rt satisfies the following formula (1):
- 0.85≦Rt≦0.92 (1).
A method for producing a toner, comprising:
- forming aggregates containing colorant particles;
- aggregating binder resin particles and the obtained aggregates containing the colorant particles, thereby forming toner particle precursors;
- and
- aggregating and fusing the obtained toner particle precursors, thereby forming toner particles, wherein
- the average circularity of the toner particles is controlled so as to satisfy the following formula (1):
- 0.85≦Rt≦0.92 (1), wherein Rt represents the average circularity of the toner particles.
Dependencies are inferred from the claim text.