Aqueous ink, ink-jet recording method, ink cartridge, recording unit and ink jet recording apparatus
US7705071B2 · kind B2 · utility
24Cited by
26References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 13, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Dec 14, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous ink to be used in an ink jet recording method that an ink is ejected from a recording head by the action of thermal energy, wherein the ink contains a pigment, a polymer and a water-soluble organic solvent, the hydrophilicity δm of the pigment falls within a range of from 21.5 or more to 23.5 or less, and the content (mass %) of the water-soluble organic solvent is from 5.0 mass % or more to 17.5 mass % or less with respect to the whole mass of the aqueous ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.