Light-sensitive lithographic printing plate precursor
View Patent ↗A light-sensitive lithographic printing plate precursor comprising an aluminum support having an anodized film on both surfaces thereof and a photo-polymerizable light-sensitive layer on one side of the support, wherein the anodized film on the surface of the support opposite to the light-sensitive layer side is provided on the entire surface and an amount of the anodized film is 0.5 g/m 2 or more.
1. A method of producing a light-sensitive lithographic printing plate precursor, wherein the lithographic printing plate comprises: an aluminum support; a photo-polymerizable light-sensitive layer on one side of the support; and an anodized film on an entire surface of the support opposite to the light-sensitive layer side, the anodized film being provided uniformly in an amount of 0.5 g/m 2 or more, the method comprising the steps of:
providing cathodes on both sides of the aluminum support; and subjecting the aluminum support to anodizing treatment, so as to form the anodized film.
2. The method of claim 1 , wherein (a) an amount of the anodized film in a central portion of the anodized film and (b) amounts of the anodized film at portions that are located approximately 5 cm away from respective closest edges of the aluminum support and forms a line in a transverse direction passing through the central portion and crossing the aluminum support at right angles with respect to a treatment direction are 0.5 g/m 2 or more.
3. A method of producing a light-sensitive lithographic printing plate precursor for a CTP (Computer-To-Plate) system comprising the method of claim 1 .
4. A method of producing a light-sensitive lithographic printing plate precursor for a CTP (Computer-To-Plate) system comprising the method of claim 2 .