PURPOSE: To enhance productivity and safety by using one or two kinds of an ethylene - vinylester copolymer, an ethylene - acrylic ester copolymer and the like as a bonded layer film consisting of a plastic film and a bonding layer, and carrying out corona discharge treatment on the surface of the bonding layer.
CONSTITUTION: As a bonded layer, one or two kinds or more to be selected out of an ethylene - vinylester copolymer, an ethylene acrylic ester copolymer or an ethylene - methacrylate ester copolymer is used, and the surface of the bonded layer is corona discharge treated. The content of comonomer contained in said ethylene - vinylester copolymer, ethylene acrylic ester copolymer or ethylene - methacrylate copolymer is 10W30wt.%, preferably in the range of 15W25wt.%. The thickness of bonded layer of ethylene copolymer of the laminated film is 6W30μm, preferably in the range of 8W15μm.
OWATARI YOSHITAKA
KUBO KOJI
SHIMIZU KATSUZO
KAKIZAKI KAZUYOSHI
RAIN PLAST KK
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