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US 2026/0079416 A1Published application
Toner
AssigneeCanon Kabushiki Kaisha
InventorsMASATAKE TANAKA, MASAYA KOMURO
Life of this patent
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Abstract
A toner having a toner particle containing a binder resin, wherein the binder resin contains a vinyl resin having a monomer unit having a long-chain alkyl group, the toner particle contains a first ester compound having a specific structure and a hydrocarbon wax, and the toner particle further contains a second ester compound having a specific structure different from that of the first ester compound.
Claims9
A toner comprising a toner particle comprising a binder resin, wherein
- the binder resin comprises a vinyl resin having a monomer unit represented by the following Formula (1),
- the toner particle comprises a first ester compound that is at least one ester compound selected from the group consisting of an ester compound represented by the following Formula (2), an ester compound represented by the following Formula (3), and an ester compound represented by the following Formula (4), as well as a hydrocarbon wax, and
- the toner particle further comprises a second ester compound that is at least one ester compound selected from the group consisting of an ester compound represented by the following Formula (5), an ester compound represented by the following Formula (6), and an ester compound represented by the following Formula (7):
- in Formula (1), R1 represents a hydrogen atom or a methyl group, and R2 represents a linear alkyl group having 8 to 22 carbon atoms,
- in Formula (2), R3 and R4 each independently represent a linear alkyl group having 16 to 22 carbon atoms (provided that a case where R4 has 19 to 22 carbon atoms is excluded when R3 has 19 to 22 carbon atoms),
- in Formula (3), R5 represents a linear alkylene group having 1 to 6 carbon atoms and R6 and R7 each independently represent a linear alkyl group having 14 to 22 carbon atoms,
- in Formula (4), R5 represents a linear alkylene group having 1 to 6 carbon atoms and R6 and R7 each independently represent a linear alkyl group having 14 to 22 carbon atoms,
- in Formula (5), R8 represents a linear alkyl group having 21 carbon atoms and R9 represents a linear alkyl group having 22 carbon atoms,
- in Formula (6), R10 represents a linear alkylene group having 8 to 12 carbon atoms and R11 and R12 each independently represent a linear alkyl group having 18 to 22 carbon atoms, and
- in Formula (7), R10 represents a linear alkylene group having 8 to 12 carbon atoms and R11 and R12 each independently represent a linear alkyl group having 18 to 22 carbon atoms.
7 more elements
Dependencies are inferred from the claim text.