Films and bags having gradient deformation patterns
AssigneeThe Glad Products Company
InventorsEdward B Tucker, Robert T Dorsey, Ranyi Zhu, Theodore Cory Fites, Zeljko Vidovic, Michael G Borchardt, Jason R Maxwell, Shaun T Broering, Daniel C Peck
Life of this patent
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Abstract
Thermoplastic films and bags include gradient patterns of post-formation deformations. The gradient patterns of post-formation deformations can provide a connotation of strength. Additionally, the gradient pattern of post-formation deformations can provide different areas of the films or bags with different physical characteristics such as tear resistance, puncture resistance, elasticity, etc.
Claims20
A thermoplastic bag comprising post-formation deformations, the thermoplastic bag comprising:
- a first sidewall and a second sidewall joined together along a first side edge, a second side edge, and a bottom edge;
- an opening opposite the bottom edge;
- and
- a plurality of deformation repeat units formed in the first sidewall and the second sidewall, wherein each of the plurality of deformation repeat units comprises a grouping of deformations forming a shape, wherein the plurality of deformation repeat units is arranged in a gradient pattern such that a size of the deformation repeat units progressively increases from a bottom of the thermoplastic bag to a top of the thermoplastic bag.
A thermoplastic bag comprising post-formation deformations, the thermoplastic bag comprising:
- a first sidewall and a second sidewall joined together along a first side edge, a second side edge, and a bottom edge;
- an opening opposite the bottom edge;
- and
- a plurality of deformation repeat units formed in the first sidewall and the second sidewall, wherein each of the plurality of deformation repeat units comprises a grouping of deformations forming a shape, wherein the plurality of deformation repeat units is arranged in a gradient pattern such that a size of the deformation repeat units progressively decreases from a bottom of the thermoplastic bag to a top of the thermoplastic bag.
A thermoplastic bag comprising post-formation deformations, the thermoplastic bag comprising:
- a first sidewall and a second sidewall joined together along a first side edge, a second side edge, and a bottom edge;
- an opening opposite the bottom edge;
- a plurality of first deformation repeat units formed in the first sidewall and the second sidewall, each of the plurality of first deformation repeat units comprising a grouping of deformations forming a first shape comprising a first size;
- a plurality of second deformation repeat units formed in the first sidewall and the second sidewall, each of the plurality of second deformation repeat units comprising a grouping of deformations forming a second shape comprising a second size, the second size being smaller than the first size;
- and
- a plurality of third deformation repeat units formed in the first sidewall and the second sidewall, each of the plurality of third deformation repeat units comprising a grouping of deformations forming a third shape comprising a third size, the third size being smaller than the second size;
- wherein the plurality of first deformation repeat units, the plurality of second deformation repeat units, and the plurality of third deformation repeat units are arranged in a gradient pattern such that the first size, the second size, and the third size progressively increase or progressively decrease from a bottom of the thermoplastic bag to a top of the thermoplastic bag.
Dependencies are inferred from the claim text.