Planographic printing plate package structure

• Main Authors: USUI, TAKAYUKI, KAWAMURA, YOSHITAKA
• Format: Patent
• Language: English; French; German
• Published: 01.07.2009
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR; AUXILIARY PROCESSES IN PHOTOGRAPHY; CINEMATOGRAPHY; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; ELECTROGRAPHY; HANDLING THIN OR FILAMENTARY MATERIAL; HOLOGRAPHY; IMPREGNATING OR COATING OF PAPER; LINING MACHINES; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE; MATERIALS THEREFOR; ORIGINALS THEREFOR; PACKAGES; PACKAGING ELEMENTS; PACKING; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHYSICS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM; PRINTING; PRINTING PLATES OR FOILS; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; STAMPS; STORING; TEXTILES; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; TYPEWRITERS

An object of the present invention is to provide an interleaf paper for packaging planographic printing plates and preventing breakage of the plate-making layer at the time packaging, and a planographic printing plate package structure using a plurality of the above-mentioned interleaf paper. According to the invention, the interleaf paper for packaging the planographic printing plates is an interleaf paper, which contacts a plate-making layer of a planographic printing plate when packaging the planographic printing plates, and the interleaf paper contains Mg, Al, and Si, each at 0.5% by weight or less.