A flexible large container for transporting and storing a filling product. The container has a usable space formed by top, bottom, and side walls that are constructed from a plurality of fabric sheets. The portions of the fabric sheets that enclose the usable space are welded together to provide a stitchless usable space. Upper portions of the sidewalls extend upward beyond the usable space to form a hem. Lift loops that enable the large container to be lifted by mechanical means are sewn onto the hem. Thus, the usable space remains stitchless, i.e., without stitch holes, yet the lift loops are stitched to the hem.

The present disclosure provides a plastic bladder for containing a liquid. The bladder includes a barrier layer and a recycled plastic layer adjacent to the barrier layer. The bladder further includes a fitting in contact with the layer.

A vent is described, more specifically a vent for the egress of fluid. The vent comprises a housing comprising an opening and at least one valve that extends through the housing. Additionally, the vent includes a plurality of baffles within the housing, where each baffle in the plurality of baffles comprises at least one aperture, and wherein the aperture or apertures of a first baffle within the plurality of baffles are offset from the aperture or apertures of a second baffle within the plurality of baffles. In this way, the egress of various fluids though the housing may be controlled.

A lower cost, light weight, hermetic system and method for storage of dry commodities outdoors for up to 1000 tonnes of commodity includes a multilayer joined material with a thickness of 0.2-0.3 mm, a weight of approximately 200 g/m.sup.2, a permeability to oxygen of less than 3 cc/m.sup.2/day and a permeability to water of less than 4 g/m.sup.2/day, a tensile strength of approximately 38 MPa, and insect penetration-resistance of approximately 1200 g/m.sup.2 (Dart test value).

The present invention relates to a flexible big bag (10) provided for carrying liquid or liquid based material, stored therein, in a vehicle chassis or in a container, and having a first layer (101) which defines a closed volume.

This invention relates to inner-plies for bulk-bags that surprisingly offer not only high thermal resistance, but also high flex-crack resistance. This invention also relates to such bulk-bags made for packaging of flowable materials, aseptic or otherwise, and the process for improving their flex-crack and thermal resistance. Preferably, the packaging is aseptic. More specifically, the inner-ply of the invention comprises a resin blend comprising the Exceed® XP resin; an LDPE resin or an ethylene—α-olefin copolymer (EAO copolymer); or a blend of said LDPE resin and said EAO copolymer, with flex-crack resistance improved in both machine direction and transverse direction, in conjunction with an improved thermal resistance. Thus, in addition to possessing good flex-crack resistance, the bulk-bags can withstand steam sterilization and/or aseptic packaging conditions.

A lower cost, light weight, hermetic system and method for storage of dry commodities outdoors for up to 1000 tonnes of commodity includes a multilayer joined material with a thickness of 0.2-0.3 mm, a weight of approximately 200 g/m.sup.2, a permeability to oxygen of less than 3 cc/m.sup.2/day and a permeability to water of less than 4 g/m.sup.2/day, a tensile strength of approximately 38 MPa, and insect penetration-resistance of approximately 1200 g/m.sup.2 (Dart test value).

Provided is a flexible container that can be easily opened. Provided is a flexible container for holding contents that includes an outer bag, an inner bag, a first binding member, and a lid. The outer bag includes a bottom surface portion in which a lower opening is formed. The inner bag is a tubular inner bag that is housed in the outer bag, configured to be filled with contents, and includes a discharge port portion. The discharge port portion forms a discharge path for discharging the contents and extends to a lower side of the bottom surface portion via the lower opening. The first binding member is tied around the discharge port portion to close the discharge path. The lid is attached to an outer side of the bottom surface portion to close the lower opening and cover the discharge port portion. The discharge port portion is narrowed to close the discharge path. The first binding member is tied around the discharge port portion to maintain a state in which the discharge port portion is narrowed. The lid is attached to the outer side of the bottom surface portion to cover the discharge port portion tied off with the first binding member.

A container includes a multilayered composite film combination forming a bag defining a product fill opening. The multilayered composite film combination includes first and second polymer film inner and outer layers each having vacuum holding properties, and a third polymer film disposed between the first and second polymer films. The third polymer film has oxygen barrier properties. Product is packed into the container by coupling a fill spout of the container with a fill tube of a product filling apparatus, and oxygen is drawn from an inner cavity of the container. Fluidized product entrained in nitrogen and/or carbon dioxide gas is flowed through the fill spout of the container, and nitrogen is added into the inner cavity through the fill spout of the container. The fill spout of the container is sealed while a negative pressure is drawn within the inner cavity thereby immobilizing the product within the container.

A flexible tank has one or more inner layers and one or more outer layers enclosing the inner layers. It has an improved structure to prevent leakage and rupture when making a long multi-modal shipment of large quantities of a liquid, including when the flexible tank is not supported by the end or side walls of a shipping container.