Apparatus and method for lithographic printing utilizing a precision emulsion ink feeding mechanism
US6318259A · kind A · utility
9Cited by
30References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1997 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Sep 3, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41P2231/21
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for supplying emulsion ink to a printing plate on a printing press is disclosed. The apparatus includes an ink feed and recirculation system and associated control system to quickly and reliably form a high quality emulsion ink. The control system utilizes both feedback and feedforward control strategies. The recirculation of the emulsion ink ensures that the emulsion ink remains stable and makes it possible to reformulate the emulsion ink, if necessary, without waiting for the exhaustion of all of the emulsion ink that is in need of reformulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.