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US 7,125,111 B2Granted
Ink and ink jet recording method using the ink
AssigneeCanon Kabushiki Kaisha
InventorsMasako Udagawa, Akira Nagashima
Life of this patent
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Abstract
Provided are an ink for ink jet recording and an ink jet recording method. The ink for ink jet recording includes an aqueous liquid medium, water-dispersible coloring material, and hardly water-soluble dye having no azo group, the ink jet recording being carried out by ejecting the ink by applying thermal energy thereto, whereby high durability can be achieved.
Claims15
An ink for ink jet recording, the ink jet recording being carried out by ejecting the ink by applying thermal energy to the ink, the ink comprising:
- an aqueous liquid medium;
- a water-dispersible coloring material;
- and
- a hardly water-soluble dye having no azo group,
- wherein the content of the water-dispersible coloring material is 0.5 to 10 parts by mass based on 100 parts by mass of the ink,
- wherein the content of the hardly water-soluble dye having no azo group is double or more the content of the water-dispersible coloring material based on mass, and
- wherein the hardly water-soluble dye is represented by the following formula (A):
4 more elements
Dependencies are inferred from the claim text.