Ink for inkjet printing
US5431722A · kind A · utility
50Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1993 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Oct 15, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink for inkjet printers comprises water, a water-soluble organic solvent, and a colorant. The ink further comprises an amine having at least one substituent selected from the group consisting of a sulfonic acid group, a carboxylic acid group and a halogen atom, so that the variation in pH of the ink can be suppressed to a minimum. The pH of the ink is preferably in the range of from 5 to 9.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.