METHOD FOR SELECTING POLYESTER FILM, METHOD FOR PRODUCING MULTILAYER BODY, METHOD FOR PRODUCING PACKAGE, AND MULTILAYER BODY

The present disclosure relates to a method for selecting a polyester film in which the polyester film is used as a sealant layer in a multilayer body including a base material layer including a crystalline polyester film, an adhesive layer and a sealant layer in this order, the method including:a st...

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Bibliographische Detailangaben
Hauptverfasser:	KUDO, Shigeki, OGAWARA, Kenji, KADOYA, Haruna
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR 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 HANDLING THIN OR FILAMENTARY MATERIAL INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS MEASURING PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PHYSICS STORING TESTING TRANSPORTING UNPACKING
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Beschreibung
Zusammenfassung:	The present disclosure relates to a method for selecting a polyester film in which the polyester film is used as a sealant layer in a multilayer body including a base material layer including a crystalline polyester film, an adhesive layer and a sealant layer in this order, the method including:a step in which FT-IR analysis is performed on the polyester film by a reflection method, and the crystallinity of the polyester film is measured by the following formula; anda step in which a first polyester film having a crystallinity of 2 to 15% is selected: I1409=p1×I1340+p2×I1370Crystallinity%=p1×I1340/I1409×100