Imaging apparatus for exposing a printing member and printing members therefor
US6989854B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1998 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Jul 24, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41N1/003
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus, including a printing system, press, press components, and printing members for lithographic printing and other similar processes, is disclosed. The printing system for imaging printing members includes a plurality of infra red laser diodes coupled to a respective optical fiber for providing an output light beam, and a stationary telecentric lens assembly, that operates to image a printing member by exposure from ablative infra-red radiation. The printing members include a first substrate layer, with a second radiation absorbing layer over this first layer, for supporting an image ablated onto the printing member. A third surface coating layer is over the second layer. The third layer is substantially abdhesive to ink while the second layer has an affinity for ink opposite that of the third layer. Methods for imaging with the apparatus and for imaging the printing members are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.