Light-sensitive diazonium resin mixture and light-sensitive diazonium resin containing recording material with organic peroxide compound

摘要

A light-sensitive mixture that contains a diazonium salt polycondensation product, a polymeric binder and an organic peroxide which has a scorch temperature of at least 100 DEG C. and, above this temperaure, is capable of forming free radicals is especially useful for the preparation of planographic printing plates, the print run of which can be extended by burning-in the exposed and developed plate. The light-sensitive mixture has a long storage life in the dark.