DEVELOPMENT OF PRINTING MEMBERS HAVING POST-ANODICALLY TREATED SUBSTRATES

摘要

Gum solutions are formulated to develop a negative-working photopolymer imaging layer coated on an anodized aluminum substrate that has undergone a post-anodic sealing treatment with inorganic phosphate and inorganic fluoride. The gum solution contains at least one polycarboxylic acid- which may be a polymer- that beneficially desensitizes the surface after the unexposed photopolymer layer is removed.