Ink jet recording method and ink jet recording apparatus
US11607900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2020 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Jun 18, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/54
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The method is an ink jet recording method, which uses an ink set being composed of a plurality of aqueous inks and including a combination of a first ink containing a coloring material and a second ink containing no coloring material and by which an image is recorded by applying the first ink and the second ink onto a recording medium so that an area to which the first ink is applied and an area to which the second ink is applied overlap at least in part with each other. The coloring material of the first ink contains fluorescent dye, the second ink contains a first water-soluble organic solvent, and an SP value SS of the first water-soluble organic solvent and an SP value SD of the fluorescent dye satisfy a relationship of the following formula (1): |SS−SD|≤4.0 (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.