Process for the protection of an engraved roll or plate by coating an engraved surface with an interlayer and thereafter applying a wear-resistant layer to the interlayer by PVD

摘要

A process for the production of engraved rolls and plates for printing operations wherein there are applied to a base member of metal, after it has been engraved, at least two layers of a metal and, respectively, a metal compound for increasing the hardness and the corrosion protection in order to achieve surface hardness values of at least 2000 HV.