Inkjet recording ink and image forming method
US8474963B2 · kind B2 · utility
36Cited by
4References
9Claims
0Family size
Assignee
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Key dates
| Filing date | May 22, 2009 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Apr 25, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/0023
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An inkjet recording ink which includes: a carbon black; a dispersant, wherein the dispersant is a sodium naphthalenesulfonate-formalin condensate; resin emulsion; and water, in which the resin emulsion contains a resin which is at least one of a urethane resin and a styrene-acryl resin, and the ink satisfies the following relationship: 20≦B−A≦50, where A(nm) represents a particle diameter D90 of particles contained in dispersion containing the carbon black, the dispersant, and water, which is before added with the resin emulsion, and B(nm) represents a particle diameter D90 of particles contained in the ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.