Water based ink compositions exhibiting reduced crusting, clogging and kogation
US5169437A · kind A · utility
40Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1991 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Oct 24, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein are aqueous ink compositions containing a specific humectant or a mixture of such humectants. The use of such humectants in aqueous ink compositions greatly mitigates the problems arising with the crusting and clogging of orifice plates in thermal ink jet printers associated with aqueous ink compositions not employing a humectant. Additionally, the use of such humectants in aqueous ink compositions greatly mitigates the kogation problems arising in thermal ink-jet printers from humectants heretofore employed in aqueous ink compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.