Aqueous ink, ink cartridge and ink jet recording method
AssigneeCanon Kabushiki Kaisha
InventorsKuniaki Fujimoto, Yasuaki Murai, Saki Tasaki, Hideki Yamakami
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Abstract
Provided is an aqueous ink capable of recording an image having a good hue as a magenta ink. The aqueous ink is an aqueous ink for ink jet including a first coloring material and a second coloring material. The first coloring material is a compound represented by general formula (1), and the second coloring material is a compound represented by general formula (2). A proportion (% by mass) of a content of the second coloring material to a total content of the first coloring material and the second coloring material in the aqueous ink is 0.60% by mass or more.
Claims21
An aqueous ink for ink jet comprising a first coloring material and a second coloring material,
- wherein the first coloring material is a compound represented by general formula (1),
- wherein the second coloring material is a compound represented by general formula (2),
- wherein a proportion (% by mass) of a content of the second coloring material to a total content of the first coloring material and the second coloring material in the aqueous ink is 0.60% by mass or more to 1.40% by mass or less, and
- wherein the total content (% by mass) of the first coloring material and the second coloring material in the aqueous ink is 3.00% by mass or more to 6.00% by mass or less based on a total mass of the ink,
- in general formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group, or an alkoxy group, X1 represents a halogen atom, and M's each independently represent a hydrogen atom, an alkali metal, ammonium or organic ammonium, and
- in general formula (2), R3 represents an alkoxy group, an ethyl group, an n-propyl group, an n-butyl group, or a branched alkyl group, X2's each independently represent a halogen atom, n represents an integer of 1 or 2, and M's each independently represent a hydrogen atom, an alkali metal, ammonium or organic ammonium.
An aqueous ink for ink jet comprising a first coloring material and a second coloring material,
- wherein the first coloring material is a compound represented by general formula (1),
- wherein the second coloring material is a compound represented by general formula (2),
- wherein a proportion (% by mass) of a content of the second coloring material to a total content of the first coloring material and the second coloring material in the aqueous ink is 0.60% by mass or more to 1.40% by mass or less, and
- wherein the total content (% by mass) of the first coloring material and the second coloring material in the aqueous ink is 3.00% by mass or more to 6.00% by mass or less based on a total mass of the ink,
- in general formula (1), R1 represents an alkyl group or an alkoxy group, R2 represents a hydrogen atom, an alkyl group, or an alkoxy group, X1 represents a halogen atom, and M's each independently represent a hydrogen atom, an alkali metal, ammonium or organic ammonium, and
- in general formula (2), R3 represents a hydrogen atom, an alkyl group or an alkoxy group, X2's each independently represent a halogen atom, n represents an integer of 1 or 2, and M's each independently represent a hydrogen atom, an alkali metal, ammonium or organic ammonium.
An aqueous ink for ink jet comprising a first coloring material and a second coloring material,
- wherein the first coloring material is a compound represented by general formula (1),
- wherein the second coloring material is a compound represented by general formula (2),
- wherein a proportion (% by mass) of a content of the second coloring material to a total content of the first coloring material and the second coloring material in the aqueous ink is 0.60% by mass or more to 1.40% by mass or less, and
- wherein the total content (% by mass) of the first coloring material and the second coloring material in the aqueous ink is 3.00% by mass or more to 6.00% by mass or less based on a total mass of the ink,
- in general formula (1), R1 represents a hydrogen atom, an alkyl group, or an alkoxy group, R2 represents a hydrogen atom, an alkoxy group, an ethyl group, an n-propyl group, an n-butyl group, or a branched alkyl group, X1 represents a halogen atom, and M's each independently represent a hydrogen atom, an alkali metal, ammonium or organic ammonium, and
- in general formula (2), Ra represents a hydrogen atom, an alkyl group or an alkoxy group, X2's each independently represent a halogen atom, n represents an integer of 1 or 2, and M's each independently represent a hydrogen atom, an alkali metal, ammonium or organic ammonium.
Dependencies are inferred from the claim text.