| 摘要 |
PROBLEM TO BE SOLVED: To provide a packed body of original plates for planographic printing plates free of the deterioration of image quality because the fusion of fine particles accompanied by unevenness due to the absorption of moisture in each photosensitive surface (the surface of each image forming layer) is not caused in packing and in storage. SOLUTION: Original plates for planographic printing plates each having an image forming layer containing at least one selected from (A-1) fine particles of a hydrophobic thermoplastic polymer which melts under heat, (A-2) a fine particulate polymer having a thermo-reactive functional group and (A-3) microcapsules housing a compound having a thermo-reactive functional group, (B) a hydrophilic binder polymer and (C) a photothermal converting agent on a hydrophilic base and inserting papers having <=6.0 mass% water content are alternately stacked to form a laminate, both end faces of the laminate parallel to the surfaces of the original plates are covered with cardboard pads having <=6.0 mass% water content and the covered laminate is packed in a moisture-proof material. |
