Patent ID: 11897660
Assignee: POLYTEX FIBERS CORPORATION
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. A bag comprising: a front wall, a back wall, a first side wall, and a second side wall, each having an interior surface, an exterior surface, a top edge, and a bottom edge, wherein the top edges of each of the first side wall, the second side wall, and the back wall extend further than the top edge of the front wall, and wherein the front wall and the back wall each has a first layer, a second layer, and a third layer, and wherein the first layer comprises woven strips comprises oriented polypropylene, the second layer comprises a film comprising oriented polypropylene, and the third layer comprises a film comprising oriented polypropylene, wherein the second layer laminates the first layer and third layer together, and wherein the top edge of the first side wall, the top edge of the second side wall, and the top edge of the back wall are adapted to be folded over the top edge of the front wall and an interior surface portion of each of the first side wall, the second side wall, and the back wall and heat sealed to an exterior surface portion of the front wall to form a top end of the bag, and the bottom edge of the front wall, the bottom edge of the first side wall, the bottom edge of the second side wall, and the bottom edge of the back wall are adapted to be heat sealed together to form a bottom end of the bag, wherein the bag comprises: a plurality of perforations, wherein each of the perforations penetrates at least partially through the first layer of the bag, the second layer of the bag, or the third layer of the bag, wherein the plurality of perforations are located on the front wall of the bag or the back wall of the bag, and not on the top end or bottom end of the bag, and wherein the plurality of perforations define a line, and a cover covering the plurality of perforations, wherein the cover covers only a portion of the plurality of perforations.