Patent ID: 11958660
Assignee: THE GLAD PRODUCTS COMPANY
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A multi-layer thermoplastic bag comprising:
a first multi-layer sidewall comprising a first thermoplastic film layer and a second thermoplastic film layer;
a second multi-layer sidewall comprising a third thermoplastic film layer and a fourth thermoplastic film layer;
a first side seal securing respective first side edges of the first and second multi-layer sidewalls together;
a second side seal securing respective second side edges of the first and second multi-layer sidewalls together; and
phased deformations formed in the first and second multi-layered sidewalls, the phased deformations extending between the first and second side edges, wherein:
the phased deformations bond the first and second thermoplastic film layers together and bond the third and fourth thermoplastic film layers together,
the phased deformations include a first series of deformation patterns comprising a first configuration of deformations within each respective deformation pattern, wherein the first series of deformation patterns are positioned in a first side zone along the first side edges and a second side zone along the second side edges, the first side zone and the second side zone each extending from a top edge to a bottom edge of the multi-layer thermoplastic bag, and
the phased deformations include a second series of deformation patterns comprising a second configuration of deformations within each respective deformation pattern, the second configuration of deformations comprising different sized deformations than the deformations of the first configuration of deformations, wherein second series of deformations is positioned in at least one middle zone positioned in a machine direction between the first side zone and the second side zone, the at least one middle zone extending from the top edge to the bottom edge,
wherein the first side zone and the second side zone are devoid of the second series of repeating deformation patterns and the at least one middle zone is devoid of the first series of repeating deformation patterns wherein the second series of deformation patterns, within an upper middle zone of the at least one middle zone, comprises a first pattern of deformations and a second pattern of deformations that are sized and oriented to direct liquids added to the multi-layer thermoplastic bag into a center of the multi-layer thermoplastic bag.