Printing machine with an electrochemically changeable printing form, and method of operation
US5211113A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1991 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Jul 8, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41C1/105
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing machine for performing flat-bed printing having a printing form with hydrophobic and hydrophilic area thereon corresponding to an image to be printed, and a device for electrochemically converting, respective areas thereof for producing a printing copy from the hydrophobic into the hydrophilic state by means of a current-conduction arrangement, including a fluid applicator for applying a hydrophobic fluid full-surface to a surface of the printing form, and a control device for controlling the current-conduction arrangement for forming appropriate current paths and for electrochemically removing the hydrophobic fluid area-by-area in accordance with the hydrophilic areas required for the image to be printed; and a method of operation thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.