JACK R CADDELL
Engineers in Landenberg, PA
License number
Pennsylvania PE013409E
Category
Engineers
Type
Professional Engineer
Address
Address
Landenberg, PA 19350
Professional information
Laser Production Of Lithographic Printing Plates
US Patent:
4054094, Oct 18, 1977
Filed:
Dec 19, 1973
Appl. No.:
5/426038
Inventors:
Jack R. Caddell - Landenberg PA
Harvey H. Hoehn - Hockessin DE
Harvey H. Hoehn - Hockessin DE
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
B41C 110, B41M 524, B41N 114
US Classification:
101467
Abstract:
The use of a laser beam to etch the surface of a printing plate made from a polymer composition on a metal or plastic base and a thin top coating of a hard hydrophilic material produces a lithographic printing plate capable of accepting ink in the etched region and accepting water in the unetched regions.