Water-based pigment inks, image recording method, and image recording system
US7361698B2 · kind B2 · utility
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23References
16Claims
0Family size
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Key dates
| Filing date | May 30, 2003 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Feb 1, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water-based pigment ink contains a pigment, a hydrophilic dispersant, an aqueous medium, an alkali agent for solubilizing the hydrophilic dispersant in the aqueous medium, and a hydrophilic compound having at least one structural unit of “hydrophobic molecular chain-hydrophilic molecular chain-hydrophobic molecular chain” in a structure thereof. The water-based pigment ink is suited especially as an ink for ink-jet printers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.