The invention described herein generally pertains to a system and method related to a hermetic seal assembly used with a bag to provide a hermetic seal for the bag that can be opened and closed while maintaining the hermetic seal for the bag and materials stored therein. The hermetic seal assembly can include a lid and a collar, wherein the collar can be releasably affixed to the bag or integrated into an opening of the bag. The lid can include a sampling port and a corresponding removeable cap.

A cartridge assembly for deploying a fillable bulk liquid bag in an intermediate bulk container is provided. The cartridge has a flexible reinforcing board adhered to the fillable bag which may facilitate securing the bag to the discharge port of an IBC while also directing the bag to the IBC bottom center for more efficient filling. Sacrificial paper tape may be used to maintain the cartridge for storage, transportation and deployment in an IBC.

A reusable dumpster bag that can be rolled and unrolled for storage and setup, and is configured to be emptied via the bottom of the bag. The dumpster bag has four sides defining an open top portion and an open bottom portion. A rear side of the dumpster bag is configured to wrap around the open bottom portion of the bag to define a temporary bottom surface adjacent to the open bottom portion. Strapping is disposed on the rear side of the dumpster bag and extends from an upper portion of the dumpster bag along the length of the rear side of the bag, wraps around the open bottom portion of the bag, and is removably secured to one or more attachment portions on the front side of the bag. The rear side of the bag can be selectively released via a quick release shackle having a pull cord.

A flexible tank has an inner tank and at least one end closure with alternating interlaced hollow loops from two separate exterior layers. A nylon rope or similar securing element is passed through the hollow loops to use the exterior layers in an end closure to constrain the inner tank. An end flap may be welded to an exterior layer and positioned between the inner tank and the end closure. The hollow loops may be formed by folding over the exterior layers and cutting out complementary portions so the loops are in an alternating interlaced pattern.

A material bag includes a bag body and a sleeve on the bag body. A periphery of an opening of the sleeve is provided with a plurality of flexible tabs. An interval is defined between every two of the tabs. The tabs are separated from each other by the interval and connected to the periphery of the opening of the sleeve, so they can be independently flipped to form force-bearing faces to be clamped by a clamping device. When the folded material bag is used for powder/particle material packaging, the clamping device will act on the tabs for clamping the sleeve of the material bag. The clamping device can complete the transfer of the material bag and the connection between the sleeve of the material bag and a filling cylinder.

A discharge assembly for use with a flexible bag, e.g., a bulk bag, comprises a discharge spout coupled to a bottom panel of the bag, wherein the discharge spout is configured to be rolled. A releasable flexible fabric tape or tie secures the discharge spout in rolled configuration to the bottom panel to define a closed configuration for the discharge spout. In the closed configuration, material contents of the bag are contained within the bag. When contents of the bag are ready to be discharged, releasing the tape or tie causes the discharge spout to unroll and materials contained in the bag will flow therethrough. A discharge tube cover can also be provided that extends across the bottom panel and discharge tube. The discharge tube cover helps provide a flatter surface for the bag to rest upon, provides another level of closure to help prevent material contents of the bag from leaking, and can provide additional support and strength to the bag.

A stitchless highly oriented polypropylene fabric bulk bag of the type that can hold 500 to 5000 pounds (226.7 to 2268 kilograms) of bulk material includes a highly oriented polypropylene fabric top, body and bottom, with a heat fused joint providing an air tight connection between the top and body, and another air tight heat fused joint connecting the body and bottom. A fill spout and discharge tube may also be provided with an air tight heat fused joint connecting the fill spout to the top and another air tight heat fused joint connecting the discharge spout to the bottom. Heat sealing machinery include heat seal bar assemblies that can self-align during heat-sealing to apply even pressure to all areas being heat sealed. A heating element is of single piece construction and can include end coupler portions as part of the single piece construction. Carrier plates used in a heat-sealing assembly line guide parts placement, provide quality checks for parts placement, and tooling set-up for machinery.

A lifting assembly and method for a flexible bag includes one or more lift members, wherein each lift member is coupled to a layer of material, e.g., a fabric layer. The fabric layer can be coupled to a flexible bag wherein the fabric layer is an intermediate layer between the lift member and the flexible bag. The fabric layer can be heat fused or otherwise coupled to a bag without stitching or sewing, which eliminates the creation of sew or stitch holes that breach a containment area of the bag and which can weaken the bag fabric. The one or more lift members, however, can be sewn or stitched to one or more intermediate layers.

A reusable dumpster bag that can be rolled and unrolled for storage and setup, and is configured to be emptied via the bottom of the bag. The dumpster bag has four sides defining an open top portion and an open bottom portion. A rear side of the dumpster bag is configured to wrap around the open bottom portion of the bag to define a temporary bottom surface adjacent to the open bottom portion. Strapping is disposed on the rear side of the dumpster bag and extends from an upper portion of the dumpster bag along the length of the rear side of the bag, wraps around the open bottom portion of the bag, and is removably secured to one or more attachment portions on the front side of the bag. The rear side of the bag can be selectively released via a quick release shackle having a pull cord.

A method of using a reusable dumpster bag that can be rolled and unrolled for storage and setup, and is configured to be emptied via the bottom of the bag. The dumpster bag has four sides defining an open top portion and an open bottom portion. A rear side of the dumpster bag is configured to wrap around the open bottom portion of the bag to define a temporary bottom surface adjacent to the open bottom portion. Strapping is disposed on the rear side of the dumpster bag and extends from an upper portion of the dumpster bag along the length of the rear side of the bag, wraps around the open bottom portion of the bag, and is removably secured to one or more attachment portions on the front side of the bag. The rear side of the bag can be selectively released via a quick release shackle having a pull cord.