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US 2010/0304286 A1Published application
Electrophotographic toner and process for producing electrophotographic toner
AssigneeToshiba Tec Kabushiki Kaisha
InventorsTakayasu Aoki, Takahito Kabai, Tsuyoshi Itou
Life of this patent
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Abstract
Disclosed is an decolorizable electrophotographic toner, containing a binder resin, an electron-donating color-developable agent, and a wax having a color-developing action and having an acid value of 60 mgKOH/g or more.
Claims10
An decolorizable electrophotographic toner, comprising a binder resin, an electron-donating color-developable agent, and a wax having a color-developing action and having an acid value of 60 mgKOH/g or more.
A process for producing an decolorizable electrophotographic toner, comprising:
- mixing an electron-donating color-developable agent with a wax having a color-developing action and having an acid value of 60 mgKOH/g or more, and heat-melting the resulting mixture, thereby allowing the electron-donating color-developable agent to develop a color;
- and
- mixing a binder resin with the mixture of the electron-donating color-developable agent in a color-developed state and the wax having a color-developing action.
Dependencies are inferred from the claim text.