DIGITAL LASER IMAGABLE LITHOGRAPHIC PRINTING PLATES
摘要
Lithographic printing plates for wet or waterless offset printing are disclosed which can be imagewise exposed using a digitally controlled IR laser. The invention comprises a laser imagable lithographic printing plate comprising a substrate, a photosensitive coating on the substrate, and a water soluble laser ablatable top coating containing dyes or polymers that absorb infra-red, ultraviolet and visible light. Laminated transparent polymer films and/or peelable polymeric coatings films can be interposed between the coated substrate and a water soluble and/or organic solvent soluble laser ablatable top layer to augment plate production or image inscription on the plate.
申请公布号
EP0788435(A2)
申请公布日期
1997.08.13
申请号
EP19960922538
申请日期
1996.06.21
申请人
KODAK POLYCHROME GRAPHICS LLC
发明人
NGUYEN, MY, T.;ZHU, HUI;PAPPAS, S., PETER;SHIMAZU, KEN-ICHI;HALLMAN, ROBERT, W.