A storage bag includes first and second sidewalls each having a top edge, a top portion, and a bottom portion. The bottom portions of the sidewalls include at least one shift region about which the bag is capable of shifting. The shift region includes a score line, an indentation, or a crimp formed into the first sidewall. The top portions of the sidewalls include a cuff line about which the bag is capable of shifting. The bag shifts (a) between (i) a flat configuration with the sidewalls positioned adjacent to each other, and (ii) a stand-up configuration with the sidewalls separated from each other. In the stand-up configuration, the bag has a substantially flat base. The bag also can be shifted to a cuffed position with the bag being folded over the cuff line of each of the sidewalls such that the cuff region forms an opening to the bag.

An accordion-sides square-bottom bag and manufacturing method thereof, comprising a paper tube (10) made by a sheet enclosing the sides; accordion sides are folded on two sides of the paper tube (10); the paper tube is provided with a first indentation line (21) and a second indentation line (22), the distance from the second indentation line (22) to the base being greater than the distance between the first indentation line and the second indentation line, but not exceeding twice the distance; two ends of the second indentation line (22) are symmetrically provided with a first crease line (31) and a second crease line (32), the distances between the respective ends of the first and second crease lines and the two edges of the paper tube (10) exceeding the folded depth of the accordion sides; and a first cutting line (41) and a second cutting line (42) are provided from the ends of the first and second crease lines to the base of the paper tube (10). The accordion-sides square-bottom bag enlarges the area of the glued surface of the bottom of the bag, such that the material on the bottom is uniformly distributed, and the bottom is adhered firmly, thus reducing the maximum thickness of the bottom, and reducing the footprint of packaged material during transportation.

A packaging bag has a bag body formed from a flat web and has a first front wall and a second front wall as well as a stand-up bottom formed in a bottom section by folding and gluing the front walls. The flat web has a varnish coating on an outside of the bag body, wherein the first front wall has an adhesive region free of the varnish coating in the bottom section of the bag body.

An embodiment includes a bag comprising mesh and film side walls and a reinforcing strip of film; wherein (a) the mesh side wall is sealed to opposing side edges of the film side wall; (b) the reinforcing strip of film is sealed to an upper portion of the mesh side wall and to the opposing side edges of the film side wall; (c) the film side wall has a bottom extension, which is monolithic with the film side wall, extending upwardly and sealed along a lateral extent of a bottom portion of the mesh side wall; (d) the film side wall is non-coplanar with a portion of the bottom extension; (e) another portion of the bottom extension is non-coplanar with the mesh side wall; and (f) a horizontal axis intersects the bottom portion of the film side wall and three portions of the bottom extension.

A storage bag includes a first sidewall having a top edge and a bottom edge, and a plurality of shift regions about which the bag is capable of shifting. At least one of the shift regions includes one of a score line, an indentation, and a crimp formed into the first sidewall, and extends a distance along the first sidewall starting from near the bottom edge of the first sidewall. A second sidewall is connected to the first sidewall so as to form an interior of the bag with an opening to the interior and having a top edge and a bottom edge. At least one of the shift regions of the first and second sidewalls extends across and intersects with another of the shift regions of the first and second sidewalls, to facilitate shifting of the bag. The bag shifts between a flat configuration, and a stand-up configuration.

A storage bag includes first and second sidewalls that are directly connected without a pleat between the sidewalls at a bottom of the bag. The bag includes a plurality of shift regions at bottom portions of the sidewalls. The bag can be moved about the shift regions such that the bag is shiftable between a flat configuration with the first and second sidewalls positioned adjacent to each other and a stand-up configuration with the first and second sidewalls separated from each other. In the stand-up configuration, the bag is shifted about the shift regions such that a substantially flat base is formed for the bag. The stand-up configuration is thereby achieved without a pleat being provided between the sidewalls at a bottom of the bag. The bag further includes a cuff region that is disposed below the top of the bag for cuffing of the top of the bag.

A storage bag shifts between a flat configuration with first and second sidewalls positioned adjacent to each other, and a stand-up configuration with the sidewalls separated. In the stand-up configuration, the bag has a substantially flat base (i) formed by the bottom portion of the first and second sidewalls, and (ii) outlined by at least one of the shift regions of the sidewalls. An angle is defined between each of (i) the first shift region of the first sidewall and an adjacent edge of the bag and (ii) the first shift region of the second sidewall and an adjacent edge of the bag, and (b) a differing angle is defined between each of (i) the second shift region of the first sidewall and a bottom edge of the bag and (ii) the second shift region of the second sidewall and the bottom edge of the bag.

Disclosed herein are adapters for use with ordinary lawn and leaf bags. In one example, a foldable, expandable, and reusable adapter is provided. The adapter includes a rectangular base unit that is designed to receive four connector pieces. The four connector pieces are made of a rigid material and may include respective vertical and horizontal creases that allow them to be folded. As such, once assembled, the adapter may be folded for storage and later expanded for use. In use, the adapter is inserted into a lawn or leaf bag and provides a larger opening for the bag as well as prevents the mouth of the bag from closing.

A bag having a front wall, back wall, first side wall, second side wall, top end, and bottom end; where at least one of a first edge of the first side wall and a first edge of the front wall and a first edge of the back wall and a first edge of the second side wall are sealed to form a sealed corner, where the sealed corner is heat sealed; where the bag is adapted to form a cube shape when filled with a filling material and both the top and bottom end of the bag are sealed; and where each of the front, back, first side, and second side wall include (i) a first woven layer including polyethylene, polypropylene, or a combination thereof; and (ii) a second film layer laminated to the first layer, said second layer including polyethylene, polypropylene, or a combination thereof.

A bag having front, back, first side, and second side walls and top and bottom ends. The first and second side walls are disposed on opposite sides of the front and back walls and connect the front and back walls. The bag is adapted to form a substantially cubic shape when filled with a filling material. The top end includes a portion that is configured to be folded and removably attached to the top end thereby forming a substantially flat surface when the bag forms the substantially cubic shape. Each of the front, back, first side, and second side walls include (i) a first layer including a woven layer including strips of high-density polyethylene, polypropylene, or a combination thereof, and (ii) a second layer laminated to the first layer and including a film including polyethylene, polypropylene, or a combination thereof. At least a portion of the bag is heat sealed.