Patent ID: 8445180

Claim:
A method for producing a water-developable photopolymer plate for letterpress printing, wherein the plate is made from a photopolymer, comprising an exposure step, a development step and a post-exposure step, wherein the method further comprises a contact step during or after the exposure step and an irradiation step with actinic light during or after said contact step, wherein said contact step brings the photopolymer plate into contact with a liquid comprising a silicone compound modified with one or more reactive functional groups selected from a hydroxy group, a carbinol group, an epoxy group, a (meth)acrylate group, a carboxyl group, a carboxylate group, and/or an amino group, wherein the photopolymer comprises: a resin in which a polar group-containing polymer and a hydrophobic polymer are mixed and dispersed; an ethylenically unsaturated compound; and a photopolymerization initiator.