Reinforced bag

A composite bag having an interior space for receiving contents, the composite bag comprising:

• opposite ends that are spaced apart from one another in a longitudinal direction, wherein the interior space is positioned between the opposite ends;
• a plurality of plies comprising a reinforcement ply positioned between inner and outer plies, the plurality of plies being configured to define a plurality of walls that extends around the interior space, the plurality of walls comprising opposite side walls and opposite major walls, and the major walls being larger than the side walls, wherein each of the major walls includes opposite longitudinal edges that
• extend in the longitudinal direction, and
• are spaced apart from one another in a lateral direction that extends crosswise to the longitudinal direction;
• the reinforcement ply being a portion of a first wall of the major walls, wherein
• the reinforcement ply extends within the first wall in the longitudinal direction from proximate one of the opposite ends of the composite bag to proximate the other of the opposite ends of the composite bag, so that at least a portion of the reinforcement ply is positioned midway between the opposite ends of the composite bag, and
• the reinforcement ply extends in the lateral direction from proximate a first of the longitudinal edges of the first wall to proximate a second of the longitudinal edges of the first wall;
• and
• the side walls not including the reinforcement ply,
• wherein
• the opposite ends of the bag are opposite top and bottom ends of the bag,
• the bottom end of the bag is closed,
• the reinforcement ply is coextensive with a substantial portion of the closed bottom end of the composite bag,
• the top end of the bag is closed, and
• the reinforcement ply is substantially absent from the closed top end of the bag.

A composite bag having an interior space for receiving contents, the composite bag comprising:

• opposite ends that are spaced apart from one another in a longitudinal direction, wherein the interior space is positioned between the opposite ends;
• a plurality of plies comprising a reinforcement ply positioned between inner and outer plies, the plurality of plies being configured to define a plurality of walls that extends around the interior space, the plurality of walls comprising opposite side walls and opposite major walls, and the major walls being larger than the side walls, wherein each of the major walls includes opposite longitudinal edges that
• extend in the longitudinal direction, and
• are spaced apart from one another in a lateral direction that extends crosswise to the longitudinal direction;
• the reinforcement ply being a portion of a first wall of the major walls, wherein
• the reinforcement ply extends within the first wall in the longitudinal direction from proximate one of the opposite ends of the composite bag to proximate the other of the opposite ends of the composite bag, so that at least a portion of the reinforcement ply is positioned midway between the opposite ends of the composite bag, and
• the reinforcement ply extends in the lateral direction from proximate a first of the longitudinal edges of the first wall to proximate a second of the longitudinal edges of the first wall;
• and
• the side walls not including the reinforcement ply,
• wherein
• each of the opposite ends of the composite bag are closed,
• an end of the reinforcement ply extends into and across one of the closed ends of the composite bag, and
• the reinforcement ply is substantially absent from the other closed end of the composite bag.

A composite bag having an interior space for receiving contents, the composite bag comprising:

• opposite ends that are spaced apart from one another in a longitudinal direction, wherein the interior space is positioned between the opposite ends;
• a plurality of plies comprising a reinforcement ply positioned between inner and outer plies, the plurality of plies being configured to define a plurality of walls that extends around the interior space, the plurality of walls comprising opposite side walls and opposite major walls, and the major walls being larger than the side walls, wherein each of the major walls includes opposite longitudinal edges that
• extend in the longitudinal direction, and
• are spaced apart from one another in a lateral direction that extends crosswise to the longitudinal direction;
• the reinforcement ply being a portion of a first wall of the major walls, wherein
• the reinforcement ply extends within the first wall in the longitudinal direction from proximate one of the opposite ends of the composite bag to proximate the other of the opposite ends of the composite bag, so that at least a portion of the reinforcement ply is positioned midway between the opposite ends of the composite bag, and
• the reinforcement ply extends in the lateral direction from proximate a first of the longitudinal edges of the first wall to proximate a second of the longitudinal edges of the first wall;
• and
• the side walls not including the reinforcement ply,
• wherein a top end of the opposite ends of the composite bag is step cut so that
• upper edges of the side walls and an upper edge of the inner ply are substantially parallel with one another,
• an upper edge the outer ply of a rear wall of the major walls projects upwardly beyond the upper edges of the side walls and the upper edge of the inner ply,
• an upper edge of the reinforcement ply is recessed downwardly from the upper edges of the side walls and the upper edge of the inner ply, and
• an upper edge of the outer ply of a front wall of the major walls is recessed downwardly from the upper edge of the reinforcement ply, and
• wherein marginal portions of each of the side walls, the inner ply and the outer ply of the rear wall are folded over the upper edge of the reinforcement ply.

A composite bag having an interior space for receiving contents, the composite bag comprising:

• opposite top and bottom ends that are spaced apart from one another in a longitudinal direction, wherein the interior space is positioned between the opposite ends;
• a plurality of plies comprising a reinforcement ply positioned between inner and outer plies, the reinforcement ply being stiffer than each of the inner and outer plies, the plurality of plies being configured to define a plurality of walls that extends around the interior space, the plurality of walls comprising opposite side walls and opposite front and rear walls, and the front and rear walls being larger than the side walls, wherein the front wall includes opposite longitudinal edges that
• extend in the longitudinal direction, and
• are spaced apart from one another in a lateral direction that extends crosswise to the longitudinal direction;
• the reinforcement ply being a portion of the front wall, the reinforcement ply extending in the longitudinal direction from proximate the top end to proximate the bottom end, so that at least a portion of the reinforcement ply is positioned midway between the top and bottom ends of the composite bag, and the reinforcement ply extending in the lateral direction from proximate a first of the longitudinal edges of the front wall to proximate a second of the longitudinal edges of the front wall;
• and
• the top end being step cut so that
• upper edges of the side walls and an upper edge of the inner ply are substantially parallel with one another,
• an upper edge the outer ply of the rear wall projects upwardly beyond the upper edges of the side walls and the upper edge of the inner ply,
• an upper edge of the reinforcement ply is recessed downwardly from the upper edges of the side walls and the upper edge of the inner ply, and
• an upper edge of the outer ply of the front wall is recessed downwardly from the upper edge of the reinforcement ply,
• wherein marginal portions of each of the side walls, the inner ply and the outer ply of the rear wall are folded over the upper edge of the reinforcement ply.