Patent ID: 6063540
Filing Date: 2000-05-16
Classification: G03F

Abstract:
A method for making a lithographic printing plate which comprises carrying out development by coating a developer on a photosensitive element comprising a support and at least a silver halide emulsion layer and a physical development nuclei layer wherein coating amount of the developer is 60 ml or less per 1 m.sup.2 of the photosensitive element and the developer contains at least one thioether compound and at least one alkanolamine compound as silver halide solvents whereini) the lithographic printing plate is exposed imagewise to light prior to development,ii) the thioether compound is represented by the following formula:R.sub.1 --(S--R.sub.3).sub.m --S--R.sub.2 (I)wherein R.sub.1 and R.sub.2 each represents an alkyl group and may be the same or different, R.sub.3 represents an alkylene group, and m represents 0 or an integer of 1-4, and when m is 2 or more, R.sub.3 maybe the same or different,iii) the developer contains a molar ratio of the thioether compound to the alkanolamine compound to be 1:6-1:60, andiv) development occurs during a time of 15 seconds or less.