Aqueous ink, ink set, image forming method and image forming apparatus
US8016932B2 · kind B2 · utility
14Cited by
42References
8Claims
0Family size
Assignee
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Key dates
| Filing date | May 5, 2008 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Dec 17, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/54
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous ink used together with a black ink containing a self-dispersion pigment, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the self-dispersion pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.