During the manufacturing process the exterior surface of one or both of the sheets of plastic film which form the bags is treated with low temperature corona discharge plasma to raise the level of surface charge magnitude to at least 43 Dyne to increase the adhesion force between the bags. A recess is formed in each of the bags to further increase the adhesion. The increased adhesion causes the mouth of one bag to automatically open as the adjacent bag is removed from the rack. The recess is formed at the same time openings are created in the bags to accept the support rods of a dispensing rack. The bags can have simple edge sides or side gussets and may be provided in a package including a pouch which receives and supports the lower portions of the bags.

A flexible side-gusseted package and methods of making the same are disclosed. The package has a central longitudinal axis, a front panel, a back panel, and a pair of gusseted side panels. The front panel is secured to the gusseted side panels along a pair of side seal lines. The back panel is secured to the gusseted side panels along a pair of side seal lines. Each of the seal lines includes a pair of end portions and an intermediate portion. The intermediate portion, e.g., a concave recessed portion, of each side seal line is located closer to the central longitudinal axis than the end portions of the side seal lines to provide a package which is somewhat necked-down at its middle, to facilitate grasping of the package by users.

Disclosed is a bag including: a first envelope having at least one fill and/or discharge orifice for a biopharmaceutical fluid and a fill and/or discharge tube associated in a fluidtight manner with the fill and/or discharge orifice, a second envelope within which the first envelope is located, and a spacer element. The first envelope, the second envelope, and the spacer element form a coherent whole, in particular during use of the bag, and the fill and/or discharge tube traverses the second envelope by a fluidtight connection, the fill and/or discharge inlet being located outside the second envelope.

A bag of plastic film material has a side gusset between front and back panels, the top of the gusset spaced from the top of the bag. The front and back panels are seamed to each other above the gusset to present a side edge having an orientation. The top edge of the gusset extends non-orthogonally to the orientation of the side edge.

A portable bag is provided, comprising: a plurality of surfaces configured to define an interior compartment, the surfaces including a front and rear surface connected by a pair of side surfaces; at least two handling extensions, a respective each of said at least two handling extensions being positioned adjacent to and extending outwardly relative to a respective one of said pair of side surfaces, and at least two handling openings, said at least two handling openings being integrally defined on at least one of said at least two handling extensions. An associated assembly is also provided, including the portable bag further comprising a set of eyelets positioned on each of the front and rear surfaces of the plurality of surfaces and the assembly further comprising a portable bag dispenser comprising at least two portions configured to slidably extend through the set of eyelets.

A woven laminated plastic bag having features that further prevent leakage of contents out of the bag, or infestation of organisms into the contents of the bag is provided. In various aspects the bag can be fabricated from woven polypropylene and/or polyethylene layer which can be laminated with a film layer, can form a pinch bottom bag, and can have one or both sides include graphics and/or printing. The bag can also provide a top end and/or a bottom end either or both of which provide a discrete area which may contain discrete graphics and/or printing. The bag can also include a tape covered easy open feature that facilitates removal of tightly adhered sealing tape.

The present disclosure provides a flexible container. In an embodiment, the flexible container includes (A) a front panel, a rear panel, a first gusseted side panel, and a second gusseted side panel. The gusseted side panels adjoin the front panel and the rear panel along peripheral seals to form a chamber. (B) Each peripheral seal has (i) a body seal inner edge (BSIE) with a bottom end and an opposing top end, (ii) a bottom tapered seal inner edge (b-TSIE) extending from the BSIE bottom end, and (iii) a top tapered seal inner edge (t-TSIE) extending from the BSIE top end. (C) The t-TSIE has a length that is at least 1.1 times greater than the length of the BSIE (in mm).

The present invention relates to a method for production of bags for the transport and storage of bulk goods or liquids, wherein use is made of tubular fabric cut into several pieces, which are then assembled together, including the steps of: providing a tubular fabric; flattening the tubular fabric to form a first double-thickness fabric having two opposite sides, respectively an internal side and an external side, extending between two flattened edges; folding-in or pleating at least one of the flattened edges of the double-thickness fabric to form a gusset; cutting the tubular fabric into pieces and assembling the pieces to form a bag; wherein the assembly of two of the pieces includes the steps of: assembling the first and second pieces by means of seams formed around or near first to fourth gusset ends.