Multi-film thermoplastic structures and bags having visually-distinct contact areas and methods of making the same
AssigneeThe Glad Products Company
InventorsSarah Steenblock, Matthew W. Waldron, Shaun T. Broering, Lehai Minh Pham Vu
Life of this patent
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Abstract
One or more implementations of a multi-film thermoplastic structure include a first film having a first appearance in contact with a second film having a second appearance at one or more visually-distinct contact areas. Wherein the one or more visually-distinct contact areas, cause the first film to take on the second appearance of the second film. The visually-distinct contact areas being of a uniform gauge and configured to separate before either of the first film or the second film fails when subjected to peel forces.
Claims19
A multi-film thermoplastic structure comprising:
- a first thermoplastic film having a first appearance;
- a second thermoplastic film having a second appearance created by a pigment, the first appearance differing from the second appearance;
- one or more separated areas where the first thermoplastic film and the second thermoplastic film are unbonded;
- and
- at least one visually-distinct contact area between the first thermoplastic film to the second thermoplastic film, wherein:
- the at least one visually-distinct contact area, when viewed from the first thermoplastic film side of the multi-film thermoplastic structure, has the second appearance, the at least one visually-distinct contact area is configured to separate before either of the first thermoplastic film or the second thermoplastic film fails when subjected to peel forces,
- portions of the first and second thermoplastic films in the at least one visually-distinct contact area are flat and un-deformed, and
- portions of the first thermoplastic film in the at least one visually-distinct contact area exhibits visual qualities comprising a Delta E between 1 and 10.3 points higher compared to portions of the first thermoplastic film not in the at least one visually-distinct contact area and that are unbonded to the second thermoplastic film.
A multi-layer thermoplastic bag comprising:
- a first thermoplastic bag comprising first and second opposing sidewalls joined together along a first side edge, an opposite second side edge, and a closed bottom edge, the first thermoplastic bag being pigmented with a first color or unpigmented;
- a second thermoplastic bag positioned within the first thermoplastic bag, the second thermoplastic bag comprising third and fourth opposing sidewalls joined together along a first side edge, an opposite second side edge, and a closed bottom edge, the second thermoplastic bag being pigmented with a second color;
- at least one visually-distinct contact area between the first thermoplastic bag to the second thermoplastic bag, wherein:
- the at least one visually-distinct contact area, when viewed from the first thermoplastic layer side of the multilayer thermoplastic bag, has the second color, the at least one visually-distinct contact area is configured to separate before either of the first thermoplastic bag or the second thermoplastic bag fails when subjected to peel forces,
- portions of the first and second thermoplastic bags in the at least one visually-distinct contact area are flat and un-deformed, and
- portions of the first thermoplastic bag in the at least one visually-distinct contact area exhibits blocking qualities comprising a peel strength that is between 0.00 g/mm and 0.88 g/mm when peel forces are exerted on a three-inch T peel.
Dependencies are inferred from the claim text.