Ink composition and recording method
US10633548B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Feb 8, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Feb 17, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink composition contains water, at least one surfactant, and a pigment. The pigment has a specific surface area of 10 m2/g or more and 50 m2/g or less as determined by pulsed NMR at 30° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.