Toner, toner cartridge, and image forming apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorTakumi Hatano
Life of this patent
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Abstract
A toner contains a crystalline polyester resin, a non-crystalline polyester resin A having a melting temperature ranging between 99° C. to 108° C., a non-crystalline polyester resin B having a melting temperature ranging between 140° C. to 150° C., an ester wax, and a colorant. A ratio of the crystalline polyester resin is 5% mass to 15% mass to a total T of the crystalline polyester resin, the non-crystalline polyester resin A, the non-crystalline polyester resin B, the ester wax, and the colorant. A ratio of the non-crystalline polyester resin A to the total T is between 50% mass to 60% mass. A ratio of the non-crystalline polyester resin B to the total T is between 20% mass to 30% mass.
Claims16
A toner comprising:
- a crystalline polyester resin;
- a non-crystalline polyester resin A having a melting temperature ranging between 99° C. to 108° C.;
- a non-crystalline polyester resin B having a melting temperature ranging between 140° C. to 150° C.;
- an ester wax;
- and
- a colorant, wherein
- a ratio of the crystalline polyester resin is 5 mass % to 15 mass % with respect to 100 mass % of a total of the crystalline polyester resin, the non-crystalline polyester resin A, the non-crystalline polyester resin B, the ester wax, and the colorant,
- a ratio of the non-crystalline polyester resin A is between 50 mass % to 60 mass % with respect to 100 mass % of the total of the crystalline polyester resin, the non-crystalline polyester resin A, the non-crystalline polyester resin B, the ester wax, and the colorant, and
- a ratio of the non-crystalline polyester resin B is between 20 mass % to 30 mass % with respect to 100 mass % of the total of the crystalline polyester resin, the non-crystalline polyester resin A, the non-crystalline polyester resin B, the ester wax, and the colorant.
Dependencies are inferred from the claim text.