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US 2013/0171557 A1Published application
Toner for developing electrostatic images and developer
OwnerNaohiro Watanabe, Tsuyoshi Sugimoto +2inventors
InventorsNaohiro Watanabe, Tsuyoshi Sugimoto, Mamoru Hozumi, Osamu Uchinokura
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Abstract
To provide a toner containing: a binder resin containing a non-crystalline polyester resin and a crystalline polyester resin; a colorant; and wax, wherein the toner satisfies the following formula 1, and has loss tangent of 1 or smaller at 80° C. or higher, B−A<20 Formula 1 where A represents a melting point of the crystalline polyester resin and B represents a temperature at which the toner has storage modulus G′ of 20,000 Pa.
Claims15
A toner comprising:
- a binder resin comprising a non-crystalline polyester resin and a crystalline polyester resin;
- a colorant;
- and
- a wax,
- wherein the toner satisfies Formula 1, and has a loss tangent of 1 or smaller at 80° C. or higher,
- B−A<20 Formula 1
- wherein A represents a melting point of the crystalline polyester resin and B represents a temperature at which the toner has storage modulus G′ of 20,000 Pa.
4 more elements
Dependencies are inferred from the claim text.