COMPOSITIONS AND SOLVENTLESS PROCESS FOR DIGITAL LASER IMAGABLE LITHOGRAPHIC PRINTING PLATE PRODUCTION

摘要

The invention comprises a waterless, multilayered lithographic printing plate imagable by digitally controlled laser ablation. The plate exhibits superior impression life and is produced by solventless methods to yield low VOC. The plate contains a first solid substrate layer; a second infra-red light absorbing polymeric layer containing crosslinked functionality; and a polysiloxane top layer containing crosslinked functionality. At least the second layer and top layer contain interlayer crosslinked bonds. Optionally, the plate may contain a prime polymeric layer interposed between the first and second layer.