Method and apparatus for making cushioned shipping bags

Method and apparatus are described for making cushioned shipping packet bags. A pocket within the cushioned bag is defined between two resilient, lightweight, flexible cushioning layers of polypropylene microfoam material which advantageously exhibits a relatively "non-slip" frictional gri...

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Hauptverfasser:	D'ANGELO, JOSEPH J, MACCHERONE, LAWRENCE S
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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDLING THIN OR FILAMENTARY MATERIAL INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 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 USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [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:	Method and apparatus are described for making cushioned shipping packet bags. A pocket within the cushioned bag is defined between two resilient, lightweight, flexible cushioning layers of polypropylene microfoam material which advantageously exhibits a relatively "non-slip" frictional gripping action on the item or items contained within the sealed packet bag. The cushioned bag is produced on a continuous motion machine having capability for adjusting the length and width of the cushioned bags produced. Two packages can be simultaneously produced end-to-end when their combined lengths do not exceed the overall width of the machine. To enable the protective outer kraft paper layers of the bag to be sealed together in spite of the intervening polypropylene material, this material is burned away from between the outer layers during the heat sealing of a polyethylene coating on the inner surfaces of the kraft paper enclosure by heat energy conducted through the kraft paper.