| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for making a lithographic printing plate including a postbaking step which is carried out within a dwell-time of less than 1 minute and which results in improvement in chemical resistance of a coating against a printing liquid and press chemicals. <P>SOLUTION: The method includes steps of: (i) preparing a lithographic printing plate precursor comprising a photosensitive coating on a substrate having a hydrophilic surface; (ii) image-wise exposing the photosensitive coating; (iii) developing the exposed coating to form an image on the substrate, and optionally gumming the plate; and (iv) baking the image on the plate. The baking step is carried out within a dwell-time of less than 1 minute, and the chemical resistance of the coating against a printing liquid and press chemicals is improved. The baking step is preferably carried out by exposing the printing plate to an IR ray source, preferably in a dynamic configuration. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
