Fluorescent phase change inks
US7674326B2 · kind B2 · utility
23Cited by
15References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2006 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Oct 5, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/34
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a phase change ink containing a fluorescent colorant that upon exposure to activating energy fluoresces such that an image that was not visible prior to exposure to the activating energy becomes visible. Also disclosed are an ink jet system and a process for authenticating a color document using the disclosed phase change ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.