Magenta ink formulation
US6419353B1 · kind B1 · utility
2Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Mar 2, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Various ink formulations utilizing particular magenta dyes have excellent printing characteristics with high chroma and good lightfastness on plain paper and minimal humid bleed and hue shift on special media. The magenta humid bleed shift has been greatly reduced, especially on photo glossy materials. A single dye may be used in comparison to blended dyes which have been used in the past.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.