PROCESS FOR ENCAPSULATION OF CELLULOSE BASED SUBSTRATES USING ELECTROMAGNETIC RADIATION HEATING

A method for encapsulating a cellulose based substrate (20) with polymeric film (43) involves raising the temperature of the respective films using an electromagnetic radiation source and providing a pressure differential between an environment defined between the films (43) and an environment exter...

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Bibliographische Detailangaben
Hauptverfasser:	WILHITE, GERALD, MUISE, HERBERT, D., SR, CHRISTENSEN, ELMER, HORSFIELD, BRIAN, C
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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDLING THIN OR FILAMENTARY MATERIAL 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 PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	A method for encapsulating a cellulose based substrate (20) with polymeric film (43) involves raising the temperature of the respective films using an electromagnetic radiation source and providing a pressure differential between an environment defined between the films (43) and an environment external to the films so that conformance of the films to the cellulose based substrates is promoted. The cellulose based substrate (20) is entirely encapsulated by the plastic films (43) and the films are sealed around the peripheral edges of the cellulose based substrate (20) as well as edges that are defined by slots (32) and cutouts (42). La méthode de mise en capsules d'un substrat à base de cellulose (20) dans un film polymérique (43) s'effectue en augmentant la température des films respectifs à l'aide d'une source de rayonnement électromagnétique et en fournissant une pression différentielle entre l'environnement délimité par les films (43) et l'environnement externe aux films afin d'accentuer la conformité des films aux substrats à base de cellulose. Le substrat à base de cellulose (20) est entièrement encapsulé par les films plastiques (43) qui sont scellés autour des bordures périphériques du substrat (20) ainsi que des bordures délimitées par les encoches (32) et les découpes (42).