Multi-detectable ink compositions and method of use
US4015131A · kind A · utility
46Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1975 |
| Grant date | Mar 29, 1977 |
| Priority date | — |
| Expiry date | Dec 15, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Inks are disclosed wherein the ordinary mixed light color of the ink is a color substantially different than the fluorescent color of the ink. Methods of use include detection of at least the fluorescent wavelength of the ink or detection of both the ink colors when irradiated for fluorescence and by exposure to mixed light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.