JP2006007697A5 - - Google Patents

Claims (4)

A printing plate material having a thermal image forming layer developable on a printing machine on one side on a polyester support having a thickness of 100 to 300 μm and a backing layer on the other side is subjected to image exposure, and image-exposed printing One end of the plate material is fixed to the plate cylinder of the printing press, the other end facing is applied with a tension of 500 to 2500 N / cm 2, the other end is fixed to the plate cylinder, and then development on the printing press is performed for printing. A printing method of a lithographic printing plate as a feature. The lithographic printing plate printing method according to claim 1, wherein the backing layer contains acrylic resin particles. The number of printed sheets is 20,000 or more, and the amount of color deviation of the printing plate on the 200th sheet from the start of development on the printing press is 80% or more of the amount of color deviation of the printing plate on the 20,000th sheet. The printing method of the lithographic printing plate according to claim 1 or 2. One end of a printing plate material having a heat-sensitive image-forming layer developable on a printing machine on one side of a polyester support having a thickness of 100 to 300 μm and having a backing layer on the other side. Is fixed to the plate cylinder of the printing press, and the other end is fixed to the plate cylinder at a position where a tension of 500 to 2500 N / cm <2> is applied to the other opposite end, and then development on the printing press is performed for printing. Lithographic printing plate printing machine to do.