Inks and printheads with internal clog prevention
US7156514B2 · kind B2 · utility
19Cited by
7References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2004 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Feb 4, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Active enzymes are incorporated into inks to prevent clogging. These may be just cellulase or cellulase and protease, to attack the most prevalent materials. The enzymes decompose the materials they are specific to, which degrades or solubilizes them to prevent clogging at nozzles and other flow features of a printhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.