Abstract:
An arrangement for exposing photosensitive material, especially the photopolymer coatings of printing plates, comprising the screen of a cathode ray tube with the information displayed thereon, an optical system and at least one liquid crystal cell for storing the information, and a light source for transferring the stored information to a photosensitive coating. In particular, an arrangement according to the invention greatly simplifies the exposure of photopolymer printing plates, and enables information reproduced successively on the screen of the cathode ray tube to be displayed simultaneously side by side.
Abstract:
A process for applying photosensitive plates, film or sheeting of a polymerized base material to a metallic support using a reaction product of an oligomer and/or polymer containing active hydrogen atoms and a polyisocyanate as bonding agent.
Abstract:
Crosslinkable photosensitive sheets, plates or film of soluble highly polymerized substances, compounds having at least two photopolymerizable double bonds, a photoinitiator and Nnitrosohydroxylamine derivatives as polymerization inhibitors.