PROCESS FOR PREPARING SLEEVES FOR PHOTOENGRAVING, REMOVABLE FROM GRAVURE PRINTING CYLINDERS, AND SLEEVES OBTAINED BY THIS PROCESS

摘要

Process for preparation of a removable sleeve (30), on which a design is to be photoengraved, of the cylinder (10) of gravure printing machines, entirely of copper, by immersing, in an electro copper plating bath (25), the cylinder (10) to which a prior treatment with a solution of silver salts has been given to facilitate detachment of the sleeve (30).