To provide an electrophotographic toner having a structure of raw materials with excellent heat resistance, allowing production even by a heat melt-kneading and pulverizing method although a vegetable-based resin is used as a binder resin, and having good charging property, mechanical strength, low temperature fixing property and oil-less fixing property.
The electrophotographic toner contains at least a binder resin and a coloring material, wherein the binder resin contains a polylactic acid (PLA) and a cellulose ester (CE) resin, the CE resin includes a 2-4C acyl group as a substituent and satisfies expression (I): 2.7≤Y+Z≤3.0 (where Y represents a substitution degree of a propionyl group and Z represents a substitution degree of a butyryl group), and the compounding mass ratio of the PLA to CE resins PLA:CE ranges from 95:5 to 70:30.
| JP2001066831 | ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER AND DEVELOPER |
| JP3582039 | Xerographic toner |
| JP2003140387 | METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC SPHERIC TONER |
| JP2008129188A | 2008-06-05 | |||
| JPS5737354A | 1982-03-01 | |||
| JPS6294853A | 1987-05-01 | |||
| JPS63241562A | 1988-10-06 | |||
| JPH05216271A | 1993-08-27 |
Kyousei Tamura
Kitahara Yasuhiro
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