发明名称 |
Aqueous ink, aqueous ink set, ink cartridge, ink-jet recording apparatus, ink-jet recording method, and image-forming method |
摘要 |
An aqueous ink comprises water, a water-insoluble coloring material, and plurality of water-soluble organic solvents and the plurality of water-soluble organic solvents including a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material. The ratio of the content of the poor medium and the content of the good medium is in a specific range. A water-soluble organic solvent showing the maximum Ka value out of respective Ka values of the plurality of water-soluble organic solvents is the poor medium. When the aqueous ink is in contact with a specific reaction liquid, the dissolution state or dispersed state of the water-insoluble coloring material in the ink is made unstable. As a result, an image which has a sufficiently large area factor even with a small amount of ink droplets and is excellent in image density, bleeding resistance, and fixability can be obtained. In addition, the aqueous ink is excellent in storage stability.
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申请公布号 |
US2006098068(A1) |
申请公布日期 |
2006.05.11 |
申请号 |
US20050313689 |
申请日期 |
2005.12.22 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
HAKAMADA SHINICHI;IMAI TAKASHI;SANADA MIKIO;NITO YASUHIRO;IWATA TETSU;SUGAMA SADAYUKI |
分类号 |
G01D11/00;C09D11/00;C09D11/02 |
主分类号 |
G01D11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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