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US 2014/0155239 A1Published application
Heat-Assisted Carton Formation
AssigneeGraphic Packaging International, Inc.
InventorJoseph C. Walsh
Life of this patent
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Abstract
A method of at least partially forming a carton includes obtaining a blank comprising at least one fold line, heating an interior surface of the blank along the at least one fold line to form a heated fold line, and folding the blank about the heated fold line.
Claims30
A method of at least partially assembling a carton from a blank, the method comprising:
- obtaining a blank comprising at least one fold line;
- heating an interior surface of the blank along the at least one fold line to form a heated fold line;
- and
- folding the blank about the heated fold line.
1 more element
A system for at least partially assembling a carton from a blank, the system comprising:
- a conveyor for transporting at least one blank within the system, the at least one blank having an interior surface and at least one fold line defined thereon;
- a heater configured to apply heat to the interior surface proximate the at least one fold line to form a heated fold line of the blank;
- and
- a folding mechanism for folding the heated fold line of the blank.
1 more element
A method of improving visual quality of an outer surface of a carton assembled from a coated paperboard blank, the method comprising:
- obtaining a blank having an inner surface, an outer surface, the outer surface having a coating applied thereon, a first side panel foldably connected to a second side panel at a first fold line, and an attachment flap foldably connected to the second side panel at a second fold line;
- heating an interior surface of the blank along the first fold line to form a first heated fold line;
- positioning the first side panel to be in at least partial face-to-face contact with the second side panel by folding the blank at the first heated fold line;
- heating the interior surface of the blank along the second fold line to form a second heated fold line;
- positioning the attachment flap to at least partially overlap the first side panel by folding the blank at the second heated fold line;
- and
- adhering overlapping portions of the attachment flap and the first side panel.
4 more elements
Dependencies are inferred from the claim text.