RECLOSABLE PACKAGE OR BAG WITH DOUBLE ZIPPER OR SIMILAR CONFIGURATION

The zipper profiles have a complex shape, such as a double zipper configuration. The apparatus for the manufacture thereof includes an extrusion die and further includes a main or primary extruder (14) for the supply of material, such as low density polyethylene, to form the tubing for the manufactu...

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Bibliographische Detailangaben
Hauptverfasser:	KOSUB, ROY, MATIAS, VICTOR
Format:	Patent
Sprache:	eng ; fre
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 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:	The zipper profiles have a complex shape, such as a double zipper configuration. The apparatus for the manufacture thereof includes an extrusion die and further includes a main or primary extruder (14) for the supply of material, such as low density polyethylene, to form the tubing for the manufacture of reclosable packages, bags or pouches. The apparatus further includes at least one secondary extruder (34), or co-extruder, for the extruding of each reclosable profile onto the tubing. The speed of the co-extruders is controlled so as to control the extrusion of the reclosable profiles. Les profils de glissière présentent une forme complexe, comme une configuration de double glissière. L'appareil destiné à leur fabrication comprend une filière d'extrusion et comprend en outre une extrudeuse principale ou primaire (14) pour l'alimentation en une matière, comme par exemple du polyéthylène basse densité, pour former le tuyau destiné à la fabrication de paquets, de sacs ou de poches refermables. L'appareil comprend en outre au moins une extrudeuse secondaire (34), ou co-extrudeuse, pour l'extrusion de chaque profil refermable sur le tuyau. La vitesse des co-extrudeuses est commandée de manière à commander l'extrusion des profils refermables.