Lithographic printing plate precursor, printing method and printing machine

摘要

A lithographic printing plate precursor comprising an image-forming layer provided on a support (11) by applying an electric field between the support and a dispersion containing an electric charged particulate high molecular polymer to cause electrodeposition of the particulate high molecular polymer (13) on the support; a printing method comprising a step of forming a particulate layer on a water-receptive support mounted on a printing machine' s plate cylinder by applying an electric field between the support and an electric charged particulate high molecular polymer to cause electrodeposition of the particulate high molecular polymer on the support, a step of subjecting the particulate layer to imagewise exposure, a step of removing non-image areas by applying ink or water thereto or by giving them a rub to make a printing plate, and a step of subjecting the printing plate to a printing work; and a printing machine comprising a plate cylinder (1) on which a water-receptive support (11) is mounted, a device (2) for forming a particulate layer on the water-receptive support by applying an electric field between the support and an electric charged particulate high molecular polymer to cause electrodeposition of the particulate high molecular polymer on the support, and an image drawing unit equipped with an exposure light source; are disclosed.