Basic plate null for direct drawing type planographic printing

摘要

PURPOSE: To provide a direct drawing-type lithographic printing original plate suitable for making a pressplate by a thermal transfer printer, a PPC copying machine, and a printer of an electrophotographic system. ;CONSTITUTION: In a direct drawing-type lithographic printing original plate provided with an image receiving layer on a substrate, the substrate is a void- containing polyester film made of a polymer obtained by mixing a polyester mainly composed of a polyethylene terephthalate repeated units with a thermoplastic resin incompatible with the polyester and provided with fine voids of an average void content of 10vol.% or more.;COPYRIGHT: (C)1994,JPO&Japio