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US 11,835,874 B2Granted
Toner
AssigneeCanon Kabushiki Kaisha
InventorsKazuyuki Sato, Tomohisa Sano
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Abstract
A toner comprising a toner particle comprising a core particle comprising a binder resin and a wax, and a shell formed on a surface of the core particle, wherein the wax comprises a wax A, the shell comprises a resin comprising a functional group B, the wax A has a surface charge density DA of −0.0080 to −0.0025, and an absolute difference |DA−DB| between the surface charge density DA of the wax A and a surface charge density DB of the functional group B is not more than 0.0025.
Claims9
A toner, comprising:
- a toner particle, the toner particle comprising a core particle comprising a binder resin and a wax, and a shell formed on a surface of the core particle;
- the wax comprising a wax A represented by formula (1)
- where R1 represents an alkylene group having 2 to 12 carbons, and R2 and R3 independently represent a straight-chain alkyl group having 15 to 25 carbons;
- and
- the shell comprising a resin comprising a functional group B, wherein the functional group B is an oxazoline group, wherein wax A has a surface charge density DA of −0.0080 to −0.0025 e/Å2, and
- an absolute difference |DA−DB| between the surface charge density DA of wax A and a surface charge density DB of functional group B is not more than 0.0025 e/Å2.
3 more elements
Dependencies are inferred from the claim text.