The invention generally relates to positive-working coating compositions and to a substrate formed with a coating of that composition. Advantageous versions of the invention provide an infrared imageable, positive lithographic printing plate having a coating comprising a hydroxy substituted polymer, a diphenylcarbinol solubility suppressing compound and an infrared radiation absorbing compound.
本发明一般涉及正作涂层组合物以及用该组合物涂层形成的基底。本发明的优点是提供了一种可红外成像的正片平版印刷板,其涂层包括羟基取代聚合物、二苯基
甲醇溶解度抑制化合物和红外辐射吸收化合物。