Vesicle ink compositions
US4783220A · kind A · utility
45Cited by
5References
38Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 18, 1986 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Dec 18, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Ink compositions consisting of small unilamellar or multilamellar vesicles formed from surfactants of anionic, cationic, zwitterionic and nonionic molecules having an oil soluble dye, inclusive of a lipid-soluble dye associated therewith are described. The dye to surfactant ratio is preferably from about 1:1 to about 1:10. The compositions are useful in traditional printing techniques such as flexography and rotogravure and in electronic printing systems such as with an ink-jet printer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.