Liner film and packaging system with liner film
AssigneeMilprint, Inc.
InventorsKenneth Eastman Kiesow, Rusty L. Witthuhn, Curtis Randolph Barr
Life of this patent
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Abstract
A packaging system is provided including a container having a plurality of walls and a flexible liner film placed in a product receiving chamber defined by the walls. The liner film comprises a base film having a first surface, a second surface and at least one side margin. A cold seal cohesive material layer is applied to the second surface of the base film so that at least a portion of at least one side margin of the base film is substantially free of cold seal cohesive material. A release film is laminated to the cold seal cohesive material layer and at least partially overlaps a portion of side margin substantially free of cold seal cohesive material.
Claims41
A packaging system for packaging a product comprising
- a container having a bottom wall and a plurality of side walls extending from the bottom wall wherein the bottom wall and the plurality of side walls define a product receiving chamber;
- and
- a flexible liner film placed in the product receiving chamber wherein the flexible liner film comprises (a) a base film having a first surface and a second surface and at least one side margin, (b) a cold seal cohesive material layer coated on the second surface of the base film, and (c) a release film laminated to the cold seal cohesive material layer;
- wherein the cold seal cohesive material layer is coated in a pattern such that at least a portion of at least one side margin of the base film is substantially free of cold seal cohesive material, and
- wherein the release film overlaps a portion of side margin substantially free of cold seal cohesive material.
A flexible liner film adaptable for use in a packaging system wherein the flexible liner film comprises
- (a) a base film having a first surface and a second surface and at least one side margin,
- (b) a cold seal cohesive material layer coated on the second surface of the base film wherein the cold seal cohesive material is coated in a pattern such that at least a portion of at least one side margin of the base film is substantially free of cold seal cohesive material, and
- (c) a release film laminated to the cold seal cohesive material layer wherein the release film overlaps a portion of side margin substantially free of cold seal cohesive material.
A flexible liner film for a container wherein the flexible liner film comprises
- (a) a base film attachable to a container wherein the base film has a first surface and a second surface and at least one side margin,
- (b) a cold seal cohesive material layer coated on the second surface of the base film wherein the cold seal cohesive material is coated in a pattern such that at least a portion of at least one side margin of the base film is substantially free of cold seal cohesive material, and wherein the cold seal cohesive material layer is selected from the group consisting of a natural latex-based cold seal cohesive material and a synthetic cold seal cohesive material, and
- (c) a release film laminated to the cold seal cohesive material layer wherein the release film overlaps a portion of side margin substantially free of cold seal cohesive material, and wherein the release film comprises a polypropylene film, a polyethylene film or a lacquer-coated polyethylene film.
Dependencies are inferred from the claim text.