Opening device and apparatus for moulding an opening device on a sheet packaging material

An opening device for a package made of a sheet packaging material-said sheet packaging material comprising at least a first layer and a second layer, and having a hole formed through said first layer and sealed by a cover portion of said second layer-is made of plastic material molded onto said cov...

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Bibliographische Detailangaben
Hauptverfasser:	Golfieri, Daniele, Cani, Franco
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An opening device for a package made of a sheet packaging material-said sheet packaging material comprising at least a first layer and a second layer, and having a hole formed through said first layer and sealed by a cover portion of said second layer-is made of plastic material molded onto said cover portion, and in turn comprises a spout defining a pouring opening and a wall portion closing said pouring opening, said wall portion defining, together with said cover portion, a user-removable sealing portion of said spout, a weakening region being interposed between said wall portion and said spout and said cover portion covering said weakening region; a molding apparatus for molding an opening device on a sheet packaging material is also disclosed.