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US 12,023,890 B2Granted
Method and system for manufacturing bags
AssigneeGraphic Packaging International, Inc.
InventorsJoseph C. Walsh, Jeffrey T. Sloat
Life of this patent
Estimating the term…
Abstract
A system and method of manufacturing reinforced bags having reinforcing elements applied about the bags to support the bags in an opened and/or upstanding configuration. A web of bag material can be fed from a supply and can be folded and secured to form the bags. A series of reinforcing strips can be fed through an adhesive application station for application of an adhesive material thereto in a desired pattern. The reinforcing strips and bags are brought into registration and are adhesively attached to form the reinforced bags.
Claims17
A method of manufacturing reinforced bags, comprising:
- feeding a web of bag material along a path of travel;
- folding the web of bag material to form a sleeve;
- separating bags from the sleeve of bag material;
- feeding a series of reinforcing elements along a path toward registration with the bags, each reinforcing element comprising a central body section, a first peripheral side portion foldably connected to the central body section, and a second peripheral side portion foldably connected to the central body section, wherein a first lock zone extends from a first fold line extending in the central body section to a second fold line extending in the first peripheral side portion, and a second lock zone extends from a third fold line extending in the central body section to a fourth fold line extending in the second peripheral side portion;
- attaching the reinforcing elements of the series of reinforcing elements to the respective bags comprising:
- applying a first adhesive material to the central body section of each of the reinforcing elements;
- adhering the reinforcing elements to the respective bags with the first adhesive material by moving the reinforcing elements into adhesive contact with the bags, wherein the first adhesive material adheres the bags to the respective central body sections of the respective reinforcing elements;
- applying a second adhesive material to the first peripheral side portion and the second peripheral side portion of each of the reinforcing elements after the moving the reinforcing elements into adhesive contact with the bags, the first lock zone and the second lock zone being generally free of the first adhesive material and the second adhesive material;
- and
- adhering the reinforcing elements to the respective bags with the second adhesive material by folding the first peripheral side portion and the second peripheral side portion of each of the reinforcing elements into a position closed about the bags comprising moving the first peripheral side portion and the second peripheral side portion of each of the reinforcing elements into adhesive contact with the respective bags, wherein the second adhesive material adheres the bags to the first peripheral side portion and the second peripheral side portion of the respective reinforcing elements;
- and
- at least partially sealing an end edge of each of the bags after the moving the reinforcing elements into adhesive contact with the bags.
9 more elements
Dependencies are inferred from the claim text.