PERFORATED FILM, COATING FILM, AND ELECTRICITY STORAGE DEVICE

Tensile strength in a width direction and a longitudinal direction is improved without damaging a ventilation characteristic. A perforated film 1 is a perforated film provided with holes 11, each of the holes 11 is arranged at an intersection of a plurality of virtual lines VL1 extending along a dir...

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Bibliographische Detailangaben
Hauptverfasser:	TOMONO, Masaki, SAKAYORI, Isamu, MURAOKA, Jun
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR BASIC ELECTRIC ELEMENTS 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 CUTTING CUTTING-OUT DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING ELECTRICITY HAND CUTTING TOOLS HANDLING THIN OR FILAMENTARY MATERIAL PACKAGES PACKAGING ELEMENTS PACKING PERFORATING PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE PUNCHING SEVERING SEVERING BY MEANS OTHER THAN CUTTING STAMPING-OUT STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Tensile strength in a width direction and a longitudinal direction is improved without damaging a ventilation characteristic. A perforated film 1 is a perforated film provided with holes 11, each of the holes 11 is arranged at an intersection of a plurality of virtual lines VL1 extending along a direction D1 and a plurality of virtual lines VL2 extending along a direction D2, and the direction D1 is different from the width direction and the longitudinal direction. The direction D1 and the direction D2 may be both inclined at an angle larger than 30° and smaller than 60° to the width direction.