Black eradicable ink, methods of eradication of the same, eradicable ink kit, and eradicated ink complex
US6905539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2003 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Jul 15, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A shear-thinning eradicable ink including water, a dye selected from the group consisting of diarylmethane derivatives, triarylmethane derivatives, methine dyes, and a solvent, wherein the ink has a shear-thinning index in the range of about 0.35 to about 1.0; a kit including the ink and an eradicator solution; an ink complex including a colorless or substantially colorless dye selected from the group consisting of oxidized diarylmethane derivatives, oxidized triarylmethane derivatives, and oxidized methine dyes, and at least one or a gelling agent and thickener; and methods of using the ink as part of an eradicable ink system, are disclosed herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.