Process of developing photolithographic printing plates

Claim 1

PROCESS WHICH COMPRISES TO ACTINIC RADIATION A PAPER BASE HAVING A SURFACE SENSITIZED WITH A COATING OF A PHOTOSENSITIVE COMPOSITION COMPRISING A MEMBER OF THE GROUP CONSISTING OF DIAZO COMPOUNDS OF THE GENERAL FORMULA R-Y-AR-N2-X WHEREIN R STANDS FOR A MEMBER OF THE GROUP CONSISTING OF ALKYL, ARALKYL ARYL AND AROYL, Y STANDS FOR A MEMBER OF THE GROUP CONSISTING OF O, S, NH, N-ALKYL, N-ARALKYL AND N-ARYL, AR STANDS FOR ARYL AND X STANDS FOR AN EQUIVALENT OF AN ANION OF AN ACID, THE AMINO DERIVATIVES OF SAID DIAZO COMPOUNDS, THE SULFONATES OF SAID DIAZO COMPOUNDS, THE REACTION PRODUCTS OF SAID DIAZO COMPOUNDS AND CARBONYL COMPOUNDS AND THE SULFONATES OF SAID REACTIONS PRODUCTS OF SAID DIAZO COMPOUNDS AND CARBONYL COMPOUNDS; TREATING THE EXPOSED SURFACE WITH A NONPENETRATING SUBSTANCE FROM THE GROUP CONSISTING OF POWDERED WATER-INSOLUBLE METAL SOAPS, POWDERED WATER-REPELLENT DYESTUFFS, OLEIC ACID, VEGETABLE OILS, LIQUID SILICONES OF VISCOSITY AS HIGH AS THAT OF OLEIC ACID, AND TURPENTINE POLYMERIZED TO A HIGH VISCOSITY; WASHING THE SURFACE WITH WATER; AND PRINTING COPIES FROM THE TREATED SURFACE BY THE OFFSET PRINTING PROCESS.