Toner, two-component developer, and image forming apparatus
AssigneeSharp Kabushiki Kaisha
InventorsYUYA KONDO, YORITAKA TSUBAKI
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Abstract
A toner includes toner particles including an amorphous polyester resin and a crystalline polyester resin. In the toner, the toner particles include metallic soap, and SPa [(cal/cm3)1/2] being the SP value (solubility parameter) of the amorphous polyester resin and SPb [(cal/cm3)1/2] being the SP value of the crystalline polyester resin satisfy the relationship, 0.9≤SPa−SPb≤1.8. A two-component developer includes the toner and a carrier. An image forming apparatus is used with the two-component developer.
Claims8
A toner comprising toner particles including an amorphous polyester resin and a crystalline polyester resin, wherein
- the toner particles include metallic soap, and
- SPa [(cal/cm3)1/2] being the SP value (solubility parameter) of the amorphous polyester resin and SPb [(cal/cm3)1/2] being the SP value of the crystalline polyester resin satisfy the following relationship,
- 0.9≤SPa−SPb≤1.8.
Dependencies are inferred from the claim text.