Agent for protecting the surface of lithographic printing plate comprising a plasticizer containing oil phase and a surfactant and a hydrophilic high molecular weight compound containing aqueous phase

摘要

An agent for protecting the surface of a lithographic printing plate which is an emulsion comprising an oil phase containing a plasticizer having a solidifying point of 15° C. or less and a surfactant, and an aqueous phase having dissolved therein a hydrophilic high molecular weight compound.