Ink conditioning device for removing excess water from emulsions of ink and water during lithographic printing
US5044274A · kind A · utility
6Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1989 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Oct 23, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F31/007
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for removing excess water from an aqueous emulsion of lithographic printing ink comprises a pair of rollers co-operating together to form a nip. Emulsified ink is fed to the nip and is broken down into an ink phase and an aqueous phase by the pressure exerted by the nip. The aqueous phase is displaced away from the ink phase by gas jets. The ink phase remains on the surface of one of the rollers and is removed and returned to the printing press.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.