POURING NOZZLE MADE FROM PACKAGING LAMINATE FILM AND METHOD OF FORMING TEAR-INDUCING FLAW IN PACKAGING LAMINATE FILM

[Task] To provide a pouring nozzle made form a packaging laminate film which is excellent in the tear-opening property and improves lowering of a liquid draining property in pouring, and a method of forming a tear-inducing flaw for opening a packaging laminate film suitable for use in a package bag...

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Bibliographische Detailangaben
1. Verfasser:	FUTASE, Katsunori
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CLADDING OR PLATING BY SOLDERING OR WELDING 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 BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING HANDLING THIN OR FILAMENTARY MATERIAL MACHINE TOOLS MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER METAL-WORKING NOT OTHERWISE PROVIDED FOR PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SOLDERING OR UNSOLDERING STORING TRANSPORTING WELDING WORKING BY LASER BEAM WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	[Task] To provide a pouring nozzle made form a packaging laminate film which is excellent in the tear-opening property and improves lowering of a liquid draining property in pouring, and a method of forming a tear-inducing flaw for opening a packaging laminate film suitable for use in a package bag for housing and keeping a liquid packed material. [Solution] A pouring nozzle made from a packaging laminate film having a laminate structure of not less than three layers comprised of a base film layer and non-oriented sealant layers laminated on front and rear surface sides of the base film layer and having a pouring path at its central portion, wherein a tear-inducing flaw is formed by irradiating a laser beam across the pouring path and to a position where a portion of at least one of the non-oriented sealant layers on the front and rear surface sides of the base film layer is displaced by pushing.