Boronic acid containing dyes to improve permanence of images
US7427129B2 · kind B2 · utility
1Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2004 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Nov 9, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A printing system including a boronic acid dye and a coated print medium. The boronic acid dye comprises a boric acid group or a boronic acid group attached to the dye. The boronic acid dye covalently binds to a polyhydroxylated material present in a coating layer of the print medium, fixing the boronic acid dye to the print medium. A method of reducing dye migration on a print medium is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.