Aqueous ink, ink cartridge and ink jet recording method
AssigneeCanon Kabushiki Kaisha
InventorsKatsuhiro Hayashi, Keiichi Ito, Tsuyoshi Furuse
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Abstract
Provided is an aqueous ink for ink jet containing coloring material-particle and resin particle. The resin particle is formed from a crystalline polyester resin having carboxylic acid groups. A difference between a 50% cumulative particle diameter (D50C) in a volume-based particle size distribution of the coloring material-particle and a 50% cumulative particle diameter (D50R) in a volume-based particle size distribution of the resin particle (D50C−D50R) is 10 nm or more. In addition, an ink cartridge and an ink jet recording method using this aqueous ink are provided.
Claims13
An aqueous ink for ink jet comprising a coloring material-particle and a resin particle,
- wherein the resin particle is formed of a crystalline polyester resin having a carboxylic acid group;
- and
- wherein a difference (D50C−D50R) of a 50% cumulative particle diameter (D50C) in a volume-based particle size distribution of the coloring material-particle minus a 50% cumulative particle diameter (D50R) in a volume-based particle size distribution of the resin particle is 10 nm or more.
Dependencies are inferred from the claim text.