Ink composition, and ink jet recording method and recorded matter using the same
US7691192B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Jan 22, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink composition including at least water, a cyan dye represented by the formula shown below and an aromatic compound having a carboxyl group and/or a salt thereof; an inkjet recording method using the composition; and recorded matter which is recorded by the recording methodwherein M represents a hydrogen atom, a metal element, a metal oxide, a metal hydroxide or a metal halide, R1 to R4 each independently represents —SO2Z, and Z represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group, provided that at least one of four Z's has an ionic hydrophilic group as a substituent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.