Planographic printing plate packaging structure and method for packaging planographic printing plate

[0031]In FIG. 1, a state (of a planographic printing plate packaging structure), in which a stack 12 of planographic printing plates 10 are accommodated and packaged in a planographic printing plate packaging box 170 relating to an embodiment of the present invention, is illustrated. Also, in FIG. 2, the packaging box 170 for planographic printing plates is illustrated with an unfolded view.

[0032]The planographic printing plate 10 is formed by applying a coating film (a photosensitive layer for a photosensitive printing plate, a heat sensitive layer for a heat sensitive printing plate) onto one surface of a thin aluminum substrate which is in a form of a rectangular plate. This coating film is subjected to a plate making process including exposure, developing treatment, gum coating and the like, set into a printing machine, and coated with ink to print text, image or the like onto a paper surface. Hereinafter, as illustrated in FIG. 3, the substrate surface onto which the coating film