Abstract: A package formed of a package material comprising a heat-sealable inner layer, an outer layer, and a pressure-sensitive adhesive disposed between the inner layer and the outer layer. The package may include a gusset with a center fold that divides the gusset into a first folded portion and a second folded portion. The package may further include a transverse heat-seal region extending across the gusset whereby the first folded portion is sealed to itself by mating surfaces of the heat-sealable inner layer and the second folded portion is sealed to itself by mating surfaces of the heat-sealable inner layer. The package may also include a patterned die cut formed in the heat-sealable inner layer, wherein at least a portion of the patterned die cut is adjacent to the transverse heat-seal region of the gusset so as to allow a portion of the inner layer to delaminate and expose a portion of the pressure-sensitive adhesive when the center fold is unfolded and the resealable pour spout is opened.

Abstract: A bag can include walls formed of a material having multiple layers, which can include two polyolefin layers and a paper layer. The bag can be formed into a sewn-open-mouth configuration in which a stitching element extends through a wall of the bag. The bag can include a grease-resistant seal that substantially prevents grease from escaping from the bag via an opening in the wall through which the stitching element extends.

Abstract: One or more sheet material layers in a multi-layer laminated structure is reinforced by adhesive bridges that extend through openings in the layer and tie together the layers on either side of the reinforced layer. A plurality of openings are provided in the layer or layers to be reinforced. The openings are spaced apart and distributed over the surface of the layer. Accordingly, when the layer is incorporated into a multi-layer structure, the adhesive applied to the layer, or to the layers on either side thereof, is forced through the openings so that a continuous adhesive connection is formed between the layers on opposite sides of the reinforced layer via the adhesive bridges that extend through the openings.

Abstract: A first embodiment of the packing film is a four-layered laminate film in which the following films are laminated in that order: a first oriented plastic film formed as an outer surface layer and provided with a first coarse surface portion, an aluminum foil or paper sheet, a second oriented plastic film provided with a second coarse surface portion which is overlapped with the first coarse portion, and a non-oriented plastic film formed as an inner surface layer. A second embodiment of the packing film is a three-layered laminate film in which the following films are laminated in that order: an oriented plastic film formed as a first surface layer and provided with a coarse surface portion, an aluminum foil, and a non-oriented plastic film formed as an inner surface layer. The oriented plastic film forming the outer surface layer is backed at its coarse surface portion by a thin surface layer and laminated to the aluminum foil through a binder layer.

Abstract: A method for the manufacture of a flexible container suitable for use as a water bed for livestock comprises providing a first layer of a flexible polymeric material, applying a mask insert to an inner zone of a first surface of the first layer, the mask insert being arranged spaced from edges of the first layer thereby to define a substantially continuous boundary zone, arranging a second layer of flexible polymeric material to lie adjacent the first layer with the mask insert sandwiched therebetween, and subjecting the assembly so formed to a treatment operation thereby to form a face to face seal between the boundary zone and the confronting surface region of the second layer.

Abstract: A container bag having a base, side walls and lifting loops, the base having a reclosable bottom opening, characterised in that a liner is provided attached to the bag, the liner having a cone shaped lower portion. Preferably the liner is made from a lighter, and less expensive, material than the outer bag. Conveniently the liner is attached to the outer bag by means such as clips, adhesive or sewing, and may advantageously be sewn to the outer bag along the top thereof. Preferably the cone-shaped lower portion of the liner terminates in an opening which may be tied off, as is known in the FIBC art. The bottom closure of the outer bag may be a "petal" or "pyjama" closure, but advantageously is larger than may have been common hitherto. The cone-shaped lower portion of the liner will depend through the opening in the outer bag when the latter is untied.

Abstract: Multilayered barrier structures containing a gas barrier layer of a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas and a moisture barrier layer of a mesophase propylene-based material are provided. These structures are environmentally compatible and radiation resistant, and exhibit one or more additional properties, including gas barrier properties, moisture barrier properties, toughness, heat sealability, softness, and quietness during wrinkling. Also provided are methods of preparing and using such multilayered barrier structures, and articles, such as films, pouches, and tubings, formed from these structures.

Abstract: Bags, primarily for liquid or other flowable products, are formed from sheet plastics material to define a generally rectangular container closed at one end and with a filling and discharging arrangement at the other end. The bags are formed from an outer sheet 10 and an inner sheet 11, the outer sheet extending the full length of the bag whereas the inner sheet extends only part way along the bag. The outer sheet defines pockets 15 which act as the corners of the rectangle and the inner sheet extends across the corners of the rectangle and is connected to the outer sheet adjacent the edges of the pockets. The bag is made by feeding the two sheets of material onto a table, the outer sheet 10 lying below the inner sheet 11. The outer sheet is drawn down to form the pockets 15 at spaced locations along the table. The inner sheet is then welded to the outer sheet at 18, 19 adjacent the edges of the pockets.

Abstract: A container apparatus and method of manufacture for same, in which the container includes an inner tube formed of plastics material, and an outer tube of one or more plies of material. The container is generally configured to lie flat, when in its unfilled condition. The container has a flat first end formed from flap members configured from one or more plies of the outer tube. The container is advantageously configured to enable opening of the first end of the outer tube to provide access to the inner tube.

Abstract: A process for manufacturing a multi-ply square bottom bag having a front wall, a back wall, a pair of gusseted side walls, each of which join to said front and back walls. There is also formed a gusseted square bottom panel having spaced but substantially parallel gusset edges and said bottom is joined to the front, back and side walls. The bag is produced by providing a web of inner ply material and a web of outer ply material, adhesively joining said webs into a composite and forming said bag from said joined webs. The improvement relates to forming a first flap in the inner web by cutting the web so as to form a plurality of free edges and a hinge line for said flap. The hinge line is connected to the free edges so that the free edges and hinge line define the flap. Thereafter joining the inner and outer webs to form the composite web.

Abstract: A flexible container for lifting transportation and storing of bulk material is manufactured from a hose-like blank, where one half-length portion of the hose-like blank is turned inside out and threaded onto or fitted over the other half-length portion form an inner sack and an outer sack having a common base or individual abases. The hose-like blank has at a mid-length thereof two or more longitudinal slots or openings separated by the same distance around the circumference of the hose-like blank. One half-length portion is rotated with regard to the other half-length portion around a central axis of the hose-like blank, such that the material of the areas between the slots after rotation forms two or more integrated lifting loops.

Abstract: A method of producing a reusable, fabric-covered, heat exchange bag is provided which includes the steps of providing thermoplastic stock including waterproof film and a fabric-like material. The fabric-like material is folded along a fold line so as to contain a substantial portion of the waterproof film. This fold line represents a first edge of the reusable heat exchange bag whenthe bag is in a flattened condition. The waterproof film and the fabric-like material are heat sealed to form a closure with the fold line and to provide a tear initiation site for facilitating the severing of the reusable heat exchange bag from the thermoplastic stock.

Abstract: A method and apparatus for high speed pouch or bag making from thin, extensible heat-sensitive thermoplastic film webs in which the method is applied to a continuously moving web and sealing is achieved at temperatures below the softening temperatures of the film or sealing interfaces. The method of forming an open pouch comprising the steps of continuously pulling an elongated web of pouch forming material at a constant speed along a pouch making path which extends continuously through a web slitting station, a web coating station, a web collating station, an Electron Beam curing station and a web cutting station. An elongated web is slit into first and second webs at the slitting station, a pattern of E.B. curable adhesive is applied to a first surface of the first web as it is pulled continuously through the web coating station to render the first surface bondable at a seal pattern and non-bondable in the area of the storage compartment when subjected to Electron Beam radiation.

Abstract: A portable water reservoir to be worn by a firefighter to provide a supply of water for use in extinguishing fires, e.g.

Abstract: A plastic or like material liner inserted within a fabric type bulk bag so that the liner is secured in position within the bag with an adhering means along substantially the outer surface of the liner for adhering to the inner most surface of the bulk bag at strategic points, and a second adhering means for adhering the lower portion of the bulk bag to the liner at substantially the point of exit of bulk contained within the bag, so that release bulk from a lower spout would not tend to dislodge the liner from its lined position within the bag.

Abstract: A method and apparatus for high speed pouch or bag making from thin, extensible heat-sensitive thermoplastic film webs or multiple webs of paper, film and foil in which the seal pattern may be simple or complex sealing and in which the method is applied to a continuously moving web and sealing is achieved at temperatures below the softening temperatures of the film or the sealing interfaces. A method of forming an open pouch comprising the steps of continuously pulling an elongated web of pouch forming material at a constant speed along a pouch making path which extends continuously through a web coating station, a web collating station, an Electron Beam curing station and a web cutting station. A pattern of E.B.

Abstract: A device is disclosed herein which will apply strips of plastic to paper, such as kraft paper, transversely to the travel of such paper as it is fed from a roll. The resulting paper may then be formed into a bag by machinery commonly in use in the industry, without modification, with the resultant bag having a leakproof, waterproof bottom.

Abstract: A process of manufacturing sacks from synthetic thermoplastic material. A tubular structure is formed from webs of plastic film in that the side portions are infolded and their overlapping margins are adhesively joined by an adhesive seam, tubular sections are severed from the tubular structure and the tubular sections are provided with bottom seam welds and are then filled and provided with top seam welds. The two plastic film webs are moved in unison, and cut sections of oriented plastic material are provided, which cut sections are shorter than the distance between the subsequently formed bottom and top seam welds as measured along the flattened sacks. The cut sections are introduced between the plastic film webs with such a spacing relative to each other that the spaces between the bottom and top seam welds are to be formed. The plastic film webs and the fabric sections are brought together and are laterally offset from each other.

Abstract: A seamless, puncture resistant bag is made by advancing a lay-flat seamless tube of thermoplastic film; forming an alternating series of fused-unfused segments along said lay-flat tube by internally fusing said lay-flat tube at regular intervals, the unfused segment length being approximately equal to the fused segment length; treating the external surface of the lay-flat tube to render said surface self adherent; periodically folding back the lay-flat tube towards its treated surface at the juncture between the leading fused-unfused segments of the lay-flat tube; pressing the folded portion of the lay-flat tube; and severing the folded portion from the tube.

Abstract: A method of manufacturing folding paper sacks, especially gusseted sacks, wherein each sack is shaped out of a tubular section separated from a single- or multiple-layer tubular web and closed at both ends with folded bottoms is characterized in that each tubular section continues to be conveyed uninterruptedly parallel to the direction of travel of the tubular web once it has been separated from the tubular web and the forward and/or rear ends of the tubular sections are shaped during the continuous pass by prefolding and crimping over and by the application of adhesive to the folded bottom, transversely to the direction C of travel, and accordingly sealed.

Abstract: A method and apparatus for high speed pouch or bag making from thin, heat-sensitive thermoplastic film webs or multiply webs of paper, film and foil in which the seal pattern may be simple or complex sealing and in which the method is applied to a continuously moving web and sealing is achieved at temperatures below the softening temperatures of the film or the sealing interfaces. A method of forming an open pouch comprising the steps of continuously driving an elongated web of pouch forming material at a constant speed along a pouch making path which extends continuously through a web coating station, a web collating station, an E.B. curing station and a web cutting station. A pattern of a coating is applied to a first surface of a first continuous web of pouch forming material as it is driven continuously through the web coating station to render the interface bondable at a seal line and non-bondable in the area of the storage compartment when subjected to electron beam radiation.

Abstract: A plurality of multi-walled bags of flexible plastic material is formed by taking a longitudinally folded flat web of a first flexible plastic film; at least partially separating the superposed plies of said first flexible plastic film at the edge opposite the fold line and moving the film past a corona discharge electrode between the separated plies of the film to pre-treat at least a part of the inwardly facing surface of each of said two plies; taking a longitudinally folded flat web of a second flexible plastic film; corona discharge-treating the outwardly facing surfaces of the two plies of said second flexible plastic film; passing the pre-treated web of said second flexible plastic film over a diverter guide into the space between the two at least partially separated plies of said first flexible plastic film to bring the fold lines of the first and second flexible plastic film webs substantially into register with the two webs moving synchronously in a single direction; and sealing the composite of the

Abstract: In a method and apparatus for manufacturing two-ply agricultural storage bags, two supplies (36, 38) of flexible tubular materials are positioned on opposite sides of feed wheels (26) mounted on a generally cylindrical frame structure (24). The inner material (36a) from the first supply (36) extends through the frame (24) and outwardly around the feed wheels (26). The outer material (38a) from the second supply (38) extends around the feedwheels (26) in surrounding engagement over the inner material (36a). Actuation of the feedwheels (26) effects simultaneous advancement of the materials (36a, 38a) around the frame (24) so that a bag can be collected at the lower end of the frame.

Abstract: Multi-layered enclosures are provided which include extruded tubing laminated between two extruded sheets of coextruded film in order to rapidly produce an unusually tough enclosure having longitudinal side walls that are free of internal seams while providing superior fluid barrier properties. When desired, the multi-layered enclosure is transformed into a multi-layered bag or pouch by sealing the multi-layered enclosure together along one or more locations interconnecting the longitudinal or side edges of the multi-layered enclosure to thereby cross seal together the sheets, the tubing, and the internal surfaces of the tubing.

Abstract: In a method and apparatus for manufacturing two-ply agricultural storage bags, two supplies (36, 38) of flexible tubular materials are positioned on opposite sides of feed wheels (26) mounted on a generally cylindrical frame structure (24). The inner material (36a) from the first supply (36) extends through the frame (24) and outwardly around the feed wheels (26). The outer material (38a) from the second supply (38) extends around the feedwheels (26) in surrounding engagement over the inner material (36a). Actuation of the feedwheels (26) effects simultaneous advancement of the materials (36a, 38a) around the frame (24) so that a bag can be collected at the lower end of the frame.

Abstract: A reinforced receptacle for bulk materials is constructed from a two-ply plastic tube having a reinforced sheet wrapped and overlapped about the two-ply plastic tube. The reinforced sheet is adhesively secured to the two-ply tube, and the lower end of the two-ply tube is folded and adhesively secured together to form a folded satchel bottom for the receptacle. The upper end of the two-ply tube is gathered and clamped to provide structure for lifting the receptacle.