CORRUGATED FIBERBOARD FOR LITHOGRAPHIC PRINTING PLATE PACKAGING BOX AND LITHOGRAPHIC PRINTING PLATE PACKAGING STRUCTURE

PROBLEM TO BE SOLVED: To provide a corrugated fiberboard for a lithographic printing plate packaging box which is less in the relative degradation of the strength of the corrugated fiberboard in the direction of a core and capable of packaging a lithographic printing plate at a low cost, and a lithographic printing plate packaging structure to use the corrugated fiberboard for packaging the lithographic printing plate. SOLUTION: A middle plate 36 in the direction in which a bottom plate 40 and the core are orthogonal to each other is stuck on the bottom plate 40 of a corrugated fiberboard-made box body member 34 to prevent the bottom plate 40 from being bent or deformed in the direction along the core. The total thickness (the height) H1 of a bottom plate side protective part 50 and a top plate side protective part 52 constituted by holding the middle plate 36 is equal to the total height H of the height of a plate bundle 12 and the middle plate 36, and a lithographic printing plate can be packaged in a packaging step similar to a conventional one. COPYRIGHT: (C)2006,JPO&NCIPI