Thermoplastic bag structure
AssigneeTenneco Packaging
InventorsEdward A. Vaquero, William P. Belias
Life of this patent
Estimating the term…
Abstract
A thermoplastic bag structure and method for making and packaging thermoplastic bags such that their tops are easily identified and the bags are easily opened. The method for producing these bags begins with cutting a flattened thermoplastic tube into two portions. At least one of the two portions is then collapsed to form a sheet of material having a pair of thermoplastic layers, a straight folded bottom edge and a pair of top edges, at least one of which has a skewed-cut. Bag side structures are formed in the sheet of material at about bag-width distances apart. The bags are then folded a predetermined number of times, in a direction transverse to the bag side structures, so that the skewed-cut top edge(s) of each of the bags remains exposed.
Claims23
A plurality of interconnected thermoplastics bags, each comprising:
- a top layer, a bottom layer, a pair of opposing bag sides, and a straight folded bottom joining said top and bottom layers, said top and bottom layers including respective mouth edges opposing said straight folded bottom, said pair of opposing bag sides being generally parallel to each other and generally perpendicular to said straight folded bottom, at least one of said mouth edges being skewed;
- said thermoplastic bags being interconnected along said bag sides at about bag-width distances apart;
- said plurality of interconnected thermoplastic bags being folded a predetermined number of times along respective fold lines generally parallel to said respective straight folded bottoms such that said skewed mouth edge remains at least partially exposed to facilitate identification and grasping of said skewed mouth edge by a user.
A plurality of interconnected thermoplastic bags, each comprising:
- a top layer, a bottom layer, a pair of opposing bag sides, and a straight folded bottom joining said top and bottom layers, said top and bottom layers including substantially non-overlapping respective mouth edges opposing said straight folded bottom, said pair of opposing bag sides being generally parallel to each other and generally perpendicular to said straight folded bottom, at least one of said substantially non-overlapping mouth edges being skewed;
- said thermoplastic bags being interconnected along the bag sides at about bag-width distances apart;
- said plurality of interconnected thermoplastic bags being folded a predetermined number of times along respective fold lines generally parallel to said respective straight folded bottoms such that said skewed mouth edge remains at least partially exposed to facilitate identification and grasping of said skewed mouth edge by a user.
A thermoplastic bag structure, comprising:
- a top layer, a bottom layer, a pair of opposing bag sides, and a straight folded bottom joining said top and bottom layers, said top and bottom layers including respective mouth edges opposing said straight folded bottom, said pair of opposing bag sides being generally parallel to each other and generally perpendicular to said straight folded bottom, at least one of the pair of mouth edges being skewed;
- said thermoplastic bag structure being folded along a fold line generally parallel to said straight folded bottom a predetermined number of times such that said skewed mouth edge remains at least partially exposed to facilitate identification and grasping of said skewed mouth edge by a user.
Dependencies are inferred from the claim text.