BURNING RUBBER LINING AGENT FOR OFFSET PRINTING PLATE IRRADIATED AND DEVELOPED

摘要

A burn-in gumming composition for irradiated and developed offset printing plates comprises water and a water-soluble polymer or copolymer for protecting the plate surface during the burning-in step and during long-term storage. The polymer or copolymer used contains sulfonic acid groups and/or alkali metal sulfonate or ammonium sulfonate groups.