Flexographic printing forms for UV-hardenable printing inks

摘要

Photopolymerisable printing plate comprises a carrier, a photopolymerisable layer, an elastomeric layer containing a thermoplastic elastomer block copolymer and a photoinitiator (system), and a covering layer. The elastomeric layer contains a thermoplastic elastomeric block copolymer made of two or more polymer blocks consisting of aromatic vinyl units and one or more polymer blocks consisting of isoprene and/or isoprene/butadiene units with a vinyl content of not more than 70% with a glass transition temperature of not more than 20 degree C and a peak temperature of a primary dispersion of tan d of not more than 30 degree C.