MOLDING AND PACKAGE FOR PHOTOSENSITIVE MATERIAL

• Main Authors: MIZUNO KAZUNORI, MIYAKE YOSHIAKI
• Format: Patent
• Language: English
• Published: 30.08.2002
• Edition: 7
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; 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; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HANDLING THIN OR FILAMENTARY MATERIAL; HOLOGRAPHY; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING GRANULES OR PREFORMS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES; PHOTOGRAPHY; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHYSICS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; STORING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To enhance the performances of a molding and a package for a photosensitive material using paper-resin, to diminish factors having adverse effects particularly on photographic properties, and to provide a molding and a package for a photosensitive material whose mechanical performance is comparable to that of a molding of 100% thermoplastic resin. SOLUTION: Waterproof paper for photographic printing paper obtained by coating base paper made for photographic printing paper with a polyolefin resin is cut into pieces to prepare a mixture of cellulose fibers and the polyolefin resin, another thermoplastic resin is added to the mixture if necessary and the objective molding for a photosensitive material containing the base paper and the polyolefin resin molded in such a way that the weight ratio of the polyolefin resin and the another thermoplastic resin to the cellulose fibers originating from the base paper ranges from (51:49) to (75:25) is obtained.