Toner
AssigneeCanon Kabushiki Kaisha
InventorsToru Takahashi, Nobuyoshi Sugahara, Hitoshi Sano, Kazunari Ooyama, Yuu Nishimura, Kohji Takenaka, Koh Ishigami
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Abstract
A toner including a toner particle comprising a binder resin and a crystalline polyester, wherein the binder resin contains a polyester having a structure represented by the following formula (1): in formula (1), Rs each independently represent hydrogen, a methyl group, or a phenyl group; A represents a polyester segment; B represents a polyester segment or any functional group selected from the group consisting of —R1OH, —R1COOH, and —R1NH2 wherein R1 represents a single bond or a C1-4 alkylene group; and the average repeat number n is 10 to 80.
Claims6
A toner, comprising:
- a toner particle comprising a binder resin and a crystalline polyester, the binder resin comprising a polyester having a structure represented by formula (1)
- where Rs independently represent hydrogen, a methyl group or a phenyl group;
- A represents a polyester segment;
- B represents a polyester segment or is selected from the group consisting of —R1OH, —R1COOH,
- and —R1NH2 wherein R1 represents a single bond or a C1-4 alkylene group;
- and
- average repeat number n is 10 to 80, wherein
- ΔH1 is 1.0 to 10.0 J/g and (ΔH2/ΔH1) is 0.50 to 1.00 when ΔH1 is the endothermic quantity originating with the crystalline polyester in a first heating-up step measured on the toner by differential scanning calorimetry, and ΔH2 is the endothermic quantity originating with the crystalline polyester in a second heating-up step measured on the toner by differential scanning calorimetry.
Dependencies are inferred from the claim text.