Ink jet ink composition, recording method, and recorded matter
US12312485B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Mar 6, 2023 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Aug 21, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/326
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink jet ink composition is a water-based ink jet ink composition and includes a vegetable black-derived colorant, a lignosulfonate salt, and an element A which includes at least one selected from the group consisting of Ca, Mg, Mn, Fe, Al, Si, Cr, Ni, Sr, and Ba, and a content of the element A with respect to a total mass of the ink composition is 50 to 1,700 mass ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.