Ink set and droplet ejection apparatus using the ink set
US8790458B2 · kind B2 · utility
2Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2012 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Jan 15, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The ink set according to the invention includes a first ink containing water, pigments, and first metal ions as counter-ions of the pigments; and a second ink containing water, specific dyes, and second metal ions as counter-ions of the dyes, in which the maximum equivalent conductivity [S·cm2/eq] of the first metal ions is greater than the maximum equivalent conductivity [S·cm2/eq] of the second metal ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.