Liquid ink for printers
US4352691A · kind A · utility
32Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1980 |
| Grant date | Oct 5, 1982 |
| Priority date | — |
| Expiry date | Oct 16, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid ink for printers including a component for dissolving at least one of a fibrous material, sizing material and surface treatment material included in the recording medium is provided. An aqueous liquid ink in accordance with the invention includes a water-soluble dye, a strong alkali material, at least one wetting agent and water. The pH of the ink is between about 10 and 14. Shelf life of the liquid ink is improved by including a preservative and the speed of ink penetration into the print paper can be increased by including a surface active agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.