Ink composition, ink set, recording method, and ink jet recording apparatus
US10717888B2 · kind B2 · utility
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1References
12Claims
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Key dates
| Filing date | Jul 17, 2018 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Jul 17, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink composition contains dyes A and B. Dye A has a width at a half height of the largest peak in the absorption spectrum between 380 nm and 780 nm that is 50 nm or less. Dye B has a corresponding width at the half height that is 70 nm or more. Dye A is present in an amount of 40% by mass or more and 90% by mass or less of the total mass of the dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.