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US 9,069,273 B2Granted
Yellow toner and method for producing the yellow toner
AssigneeCanon Kabushiki Kaisha
InventorsShosei Mori, Takeshi Sekiguchi, Taichi Shintou, Takeshi Miyazaki
Life of this patent
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Abstract
A yellow toner is provided which is much more improved in color development and chroma, and much more improved in light resistance. The yellow toner contains, at least, a binder resin, a wax, and a coloring agent. The coloring agent is a compound represented by the following general formula (1).
Claims10
A yellow toner comprising, at least, a binder resin, a wax, and a coloring agent,
- wherein the coloring agent is a compound represented by general formula (1):
- wherein:
- R1 and R2 each independently represent a hydrogen atom, an alkyl group, or an aryl group;
- R3 represents a hydrogen atom, an alkyl group, an aryl group, or an alkoxy group;
- R4 and R5 each independently represent a hydrogen atom or an amino group;
- X1 to X3 each independently represent a carbon atom or a nitrogen atom;
- Al and A2 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a carbamoyl group, a carboxylate ester group, a carboxylic acid amide group, a sulfonate ester group, a sulfonic acid amide group, a trifluoromethyl group, a cyano group, a hydroxy group, a nitro group, an amino group, or a halogen atom;
- and
- n represents an integer of 1 to 5.
6 more elements
A method for producing a yellow toner, comprising:
- suspension-polymerizing a polymerizable monomer in a polymerizable monomer composition containing the polymerizable monomer and a coloring agent in an aqueous medium,
- wherein the coloring agent is a compound represented by the general formula (1):
- wherein:
- R1 and R2 each independently represent a hydrogen atom, an alkyl group, or an aryl group;
- R3 represents a hydrogen atom, an alkyl group, an aryl group, or an alkoxy group;
- R4 and R5 each independently represent a hydrogen atom or an amino group;
- X1 to X3 each independently represent a carbon atom or a nitrogen atom;
- A1 and A2 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a carbamoyl group, a carboxylate ester group, a carboxylic acid amide group, a sulfonate ester group, a sulfonic acid amide group, a trifluoromethyl group, a cyano group, a hydroxy group, a nitro group, an amino group, or a halogen atom;
- and
- n represents an integer of 1 to 5.
7 more elements
A method for producing a yellow toner, comprising:
- emulsion-aggregating resin particles and particles of a coloring agent in an aqueous medium,
- wherein the coloring agent is a compound represented by general formula (1):
- wherein:
- R1 and R2 each independently represent a hydrogen atom, an alkyl group, or an aryl group;
- R3 represents a hydrogen atom, an alkyl group, an aryl group, or an alkoxy group;
- R4 and R5 each independently represent a hydrogen atom or an amino group;
- X1 to X3 each independently represent a carbon atom or a nitrogen atom;
- A1 and A2 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a carbamoyl group, a carboxylate ester group, a carboxylic acid amide group, a sulfonate ester group, a sulfonic acid amide group, a trifluoromethyl group, a cyano group, a hydroxy group, a nitro group, an amino group, or a halogen atom;
- and
- n represents an integer of 1 to 5.
7 more elements
A method for producing a yellow toner, comprising:
- kneading a resin and a coloring agent, and
- pulverizing the kneaded material,
- wherein the coloring agent is a compound represented by general formula (1):
- wherein:
- R1 and R2 each independently represent a hydrogen atom, an alkyl group, or an aryl group;
- R3 represents a hydrogen atom, an alkyl group, an aryl group, or an alkoxy group;
- R4 and R5 each independently represent a hydrogen atom or an amino group;
- X1 to X3 each independently represent a carbon atom or a nitrogen atom;
- A1 and A2 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a carbamoyl group, a carboxylate ester group, a carboxylic acid amide group, a sulfonate ester group, a sulfonic acid amide group, a trifluoromethyl group, a cyano group, a hydroxy group, a nitro group, an amino group, or a halogen atom;
- and
- n represents an integer of 1 to 5.
8 more elements
Dependencies are inferred from the claim text.