A heat sensitive imaging element and a method for producing lithographic plates therewith

摘要

According to the present invention there is provided a heat sensitive imaging element comprising on a hydrophilic surface of a lithographic base an image forming layer comprising at least hydrophobic thermoplastic polymer particles and a compound capable of converting light into heat, said compound being present in said image forming layer or a layer adjacent thereto, characterized in that onto said image forming layer is coated a covering layer having a thickness between 0.1 and 3 mu m.