Heat sealing and packaging

Sealing of elongated packaging laminates of backed antistatic foam around spaced articles being packaged, using edge seals made by first applying heated melting shoes against foam edges of both laminates, then joining the melted foam edges and subjecting the assembly to rollers that press together t...

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Bibliographische Detailangaben
Hauptverfasser:	RASZEWSKI, LEWIS R
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TRANSPORTING UNPACKING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Sealing of elongated packaging laminates of backed antistatic foam around spaced articles being packaged, using edge seals made by first applying heated melting shoes against foam edges of both laminates, then joining the melted foam edges and subjecting the assembly to rollers that press together the joined laminates. Preferably the backing has aluminum layer secured to the foam by pressure-sensitive adhesive. Edge seals can be further subjected to pressure sustained for at least about a second, as while similar pressure is used to apply transverse heat seals to the edge-jointed laminates.