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US 2006/0152569 A1Published application
Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasanori Jinnou, Shin-ichi Sato, Jun Yoshizawa, Kunihiko Nakamura, Daiji Okamura, Tomohiro Yamashita
Life of this patent
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Abstract
An ink jet ink is provided with which metallic luster appearing in printing on a recording medium, i.e. the bronze phenomenon is kept from occurring and good images can be obtained. The ink jet ink includes at least a coloring material which is a compound represented by a specific general formula, and further contains a specific amine compound.
Claims12
An ink jet ink comprising at least a coloring material, wherein
- the coloring material is a compound represented by the following general formula (I) or a salt thereof;
- and
- the ink jet ink comprises an amine compound represented by the following general formula (II):
- wherein M represents an alkali metal or ammonium;
- R1 and R2 each independently represent a hydrogen atom, a sulfonic group, or a carboxyl group, provided that R1 and R2 are not simultaneously a hydrogen atom;
- Y represents a chlorine atom, a hydroxyl group, an amino group, or a monoalkylamino or dialkylamino group;
- l represents 0 to 2, m represents 1 to 3, and n represents 1 to 3, provided that l+m+n=3 to 4;
- and positions at which substituents are present are the 4- or 4′-positions;
- General Formula (II)
- NR1R2R3
- wherein R1, R2 and R3 each independently represent a hydrogen atom, an alkyl group, a lower hydroxyalkyl group, a cyclohexyl group, a mono- or di-alkylaminoalkyl group, a lower cyanoalkyl group, or a phenyl group which may be substituted, provided that all of R1, R2 and R3 are not simultaneously a hydrogen atom.
8 more elements
Dependencies are inferred from the claim text.