US 12,612,201 B1Granted

Pre-perforated stretch film wrapping system and method

AssigneeAllied Packaging Corporation

InventorsDarrel Bison, Steven D. Smith

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Abstract

A method for wrapping a palletized load. A first spool with first, second, and third rolls of stretch film and a second spool with a roll of perforated stretch film may be provided. A top edge and bottom edge of the stretch film from the first, second, and third rolls of stretch film may be banded. The first, second, and third banded stretch films may be layered onto the perforated stretch film to form a layered stretch film. The first banded stretch film may extend along a top edge, the second banded stretch film may extend along a center, and the third banded stretch film may extend along a bottom edge of the perforated stretch film. The perforations in the layered stretch film may be expanded into a plurality of voids. The layered stretch film may then be wrapped around the palletized load.

Claims20

Dependent claims

A method of wrapping a palletized load, the method comprising:

providing a first spool and a second spool, wherein the first spool comprises a first roll of stretch film, a second roll of stretch film, and a third roll of stretch film, and the second spool comprises a roll of perforated stretch film with a plurality of perforations extending through the perforated stretch film at regular spacings throughout the roll;
banding a top edge and a bottom edge of the stretch film from each of the first roll, the second roll, and the third roll to form, respectively, first, second, and third banded stretch films;
layering the first, second, and third banded stretch films from the first spool onto the perforated stretch film from the second spool to form a layered stretch film, wherein the first banded stretch film from the first roll extends along a top edge of the perforated stretch film, the second banded stretch film from the second roll extends along a center of the perforated stretch film, and the third banded stretch film from the third roll extends along a bottom edge of the perforated stretch film, wherein the first banded stretch film from the first roll is spaced away from the second banded stretch film from the second roll to form a first gap between the first and second banded stretch films and the second banded stretch film from the second roll is spaced away from the third banded stretch film from the third roll to form a second gap between the second and third banded stretch films;
expanding at least a portion of the plurality of perforations positioned in the first gap and in the second gap into a plurality of voids extending through the layered stretch film after the first, second, and third banded stretch films are layered on the perforated stretch film;
and
wrapping the layered stretch film around the palletized load.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/926,038Filed 24 Oct 2024
Published: US 2026/0116596 A130 Apr 2026
Granted: 28 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

B65B 11/585
Applying two or more wrappers, e.g. in succession: to stacked articles, e.g. pallettised loads
B65B 11/045
The articles being rotated: by rotating platforms supporting the articles
B65B 41/16
Feeding webs from rolls: by rollers
B65B 2011/002
Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material: prestretching…