Patent ID: 7654200
Filing Date: 2010-02-02
Classification: B41C,B41N,G03F

Abstract:
1. A method of producing a photosensitive planographic printing plate by continuously running a web having a roughened surface and simultaneously applying a coating solution onto the surface and then drying a film of the applied coating solution to form a coating layer, the method comprising: blowing dry air at a temperature of 50° C. or more roughly parallel to the film of the coating solution in a drying chamber within 2 seconds after application of the coating solution; the method further comprising: alternately arranging a plurality of feed openings for feeding the dry air and a plurality of exhaust openings for exhausting the dry air in the drying chamber; regulating the temperature of the web by bringing a heat roll into contact with the web before transferring the web to the drying chamber; and further comprising regulating the temperature of the web after finishing drying of one coating solution film until start of application of a next coating solution, at a temperature within ±10° C. relative to the temperature after finishing drying.