Indelible ink jet ink composition
US7297201B2 · kind B2 · utility
2Cited by
40References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2005 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | May 26, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/36
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is an ink jet ink composition that forms indelible images on porous or semiporous substrates. The ink composition comprises a liquid carrier, a first colorant that is soluble in the carrier but insoluble or substantially insoluble in water, and a second colorant composition comprising a pigment, the second colorant composition being dispersible in the carrier. The second colorant composition is insoluble or substantially insoluble in the carrier. The images are difficult or impossible to remove or wash out by the use of aqueous and/or nonaqueous liquids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.