Thermally-convertible lithographic printing precursor and imageable medium with coalescence inhibitor,申请号US20020177754-传众专利搜索

Thermally-convertible lithographic printing precursor and imageable medium with coalescence inhibitor

申请公布号：US2003235776(A1)

申请号：US20020177754

申请日期：2002.06.24

申请公布日期：2003.12.25

申请人：

GOODIN JONATHAN W.;EMANS JOHN;CHRISTALL KEITH;YU YISONG;RADEMACHER KATJA

发明人：GOODIN JONATHAN W.;EMANS JOHN;CHRISTALL KEITH;YU YISONG;RADEMACHER KATJA

分类号：B41C1/10;B41M5/36;(IPC1-7):G03F7/038;B41N1/00;B41N3/00

主分类号：B41C1/10

摘要：A lithographic printing precursor for lithographic offset printing comprises a layer of imageable medium on a hydrophilic base. The imageable medium comprises hydrophobic polymer particles in an aqueous medium, a substance for converting light into heat, and a coalescence inhibitor. The coalescence inhibitor can comprise an inorganic salt, an organic base, an organic acid and a metal complex. The lithographic printing precursor may be used to make lithographic printing surfaces that obtain long run lengths on lower quality paper and in the presence of press-room chemicals. The lithographic printing precursor can be imaged and developed on-press and the imageable medium can also be sprayed onto a hydrophilic surface to create a printing surface that may be processed wholly on-press. It can also be processed in the more conventional fully off-press fashion. The hydrophilic surface can be a printing plate substrate or the printing cylinder of a printing press or a sleeve around the printing cylinder of a printing press. The cylinder can be conventional or seamless.