planographischer druckplattenvorlu00e4ufer and stack of planographischen druckplattenvorlu00e4ufern

摘要

The invention relates to a negative-type planographic printing plate precursor comprising a support, a recording layer provided on the support, and a protective layer containing a hydrophilic polymer and silica-coated organic resin fine particles provided as the uppermost layer. The organic resin fine particles are preferably composed of at least one resin selected from the group consisting of polyacrylic acid resins, polyurethane resins, polystyrene resins, polyester resins, epoxy resins, phenolic resins, and melamine resins, and the protective layer preferably contains a mica compound.