LITHOGRAPHIEDRUCKPLATTE.

摘要

Printing plates made from ceramic-coated, steel-based, lithographic plate precursors. The printing plate of this invention is a lithographic plate comprising a steel substrate, an adhesion promoting layer overlying the steel substrate, a ceramic layer overlying the adhesion promoting layer, and a photosensitive layer coated over the ceramic layer. The steel-based plate is more durable than aluminum based plates.