Thermoplastic films with visually-distinct stretched regions and methods for making the same
AssigneeThe Glad Products Company
InventorsRobert T. Dorsey, Michael G. Borchardt
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Abstract
Thermoplastic films include intermittent stretched regions that are visually distinct from un-stretched regions. The stretched regions can be white, opaque, and non porous. The thermoplastic films with visually-distinct stretched regions can be formed into bags for use as trash can liners or food storage. Additionally, methods of stretching thermoplastic films to create non-porous, white, and opaque stretched regions include incrementally stretching a film of a thermoplastic material and a voiding agent.
Claims20
An incrementally-stretched thermoplastic film with visually-distinct stretched regions, comprising:
- a film layer of linear low-density polyethylene including a first plurality of un-stretched regions and a second plurality of stretched regions intermittently dispersed about the first plurality of un-stretched regions;
- wherein the stretched regions of the film layer of linear low-density polyethylene are:
- non-porous, and
- more opaque than the un-stretched regions.
An incrementally-stretched thermoplastic film with visually-distinct stretched regions, comprising:
- a thermoplastic film that comprises linear low-density polyethylene and a voiding agent;
- a plurality of un-stretched regions formed in the thermoplastic film, the un-stretched regions having a first average thickness;
- and
- a plurality of stretched regions intermittently dispersed about the un-stretched regions, the stretched regions having a second average thickness that is smaller than the first average thickness;
- wherein the stretched regions are non-porous and more opaque than the un-stretched regions.
Dependencies are inferred from the claim text.