Abstract: A plastic bag including a pair of side gussets 1 is arranged to be free of leakage from one end portion of each of the side gussets. Each of the side gussets has opposite end portions one of which is folded obliquely along a folding line as it is folded into halves so that a triangular flap 13 can be formed by the end portion to be shaped into a triangle having a base formed by the folding line. The triangle has an apex formed by an intersection between one of the opposite end edges and the folded inner edge of each of the side gussets. The panels 2, the side gussets and the triangular flaps are heat sealed respectively along the opposite side edges 3 of panels.

Abstract: A packaging bag for microwave oven heating, is manufactured by using a complex film at least one side of which comprises a sealant layer, folding the complex film or placing the complex films one upon another so as to encounter the sealant layers to each other, sealing the peripheral of the overlapped complex films by a main seal part to form a sealed bag, and providing in the bag a region which is isolated from a space for storing contents by a steam port seal part. The steam port seal part surrounds a steam easy permeable element. The lamination strength between the layers of the complex film in hot condition is not less than 1.5 N/15 mm in width, and the seal strength at least at the steam port seal part in hot condition is not more than 28 N/15 mm in width.

Abstract: A packaging bag is formed by bending a laminate film at two portions in parallel to each other such that both end portions thereof are mated to each other and the mated end portions are bonded together so as to provide a tubular body having upper and lower openings, which are sealed by forming upper and lower seal portions, respectively.

Abstract: To provide a bag for containing an article that includes a gusset at a bottom portion thereof and in which a bottom sheet is difficult to tear and that has sufficient strength. A film that has excellent extensibility and tearing resistance in comparison to a front sheet and a rear sheet is used for a bottom sheet, whereby a bag for containing an article can be provided that has sufficiently great strength and in which the bottom sheet is difficult to tear in comparison to conventional bags for containing an article, even if the weight of an article disposed in an article containing space is applied.

Abstract: A laminated film includes an outer-layer-film, a water-soluble film, and an intermediate layer interposed between the outer-layer-film and the water-soluble film. The intermediate layer contains a high-pressure polyethylene oxidized to a prescribed degree on a surface thereof contiguous to the water-soluble film. The outer-layer-film and the intermediate layer adhere fast to each other. The intermediate layer and the water-soluble film directly contact each other and adhere so weakly to each other as to be peelable.

Abstract: A packaging bag made of resin includes a bag-shaped film made of resin and an easy-fracture part. The bag-shaped film made of resin is a laminate film made of a front layer having an adhesive layer and a resin laminated thereon. The easy-fracture part is formed near an outer circumferential end of the bag-shaped film made of resin. On the surface layer, a non-adhesive part is formed toward a site of fracture from the easy-fracture part. Thus, the surface layer can be easily peeled off from this non-adhesive layer.

Abstract: A flexible film pouch includes an aperture to access its contents, and a closure means such as a re-sealable spout is applied over the aperture to permit sealed storage of the contents after opening. The closure means is attached to the flexible film pouch by means of a patch that is bonded to the inside of the pouch adjacent to the aperture. The patch is selected to have a mating surface that bonds with the inner surface of the pouch, where such bonding is preferably conducted by ultrasonic welding or adhesive bonding. The patch itself may have a hole that permits access to the contents of the pouch, or the closure means may include a cutting surface that tears a portion of the patch to permit access.

Abstract: A bowl-in-pouch arrangement is provided from at least two flexible front and rear panels forming a void there between. A bowl is formed from a third panel and is disposed in the void between the front and rear panels. The bowl is sealed to the inner faces of the front and rear panels and the bowl defines a lower reservoir area and an upper bowl area. Gaps are formed in the seal between the bowl and the inner faces of the front and rear panels to permit fluid, under pressure, to travel from the reservoir into the bowl. An opening is formed in the upper edge of the front and rear panels to permit reclosable access to the fluid in the bowl.

Abstract: The flexible, reusable packaging container of the present invention is comprised of a packaging material. The packaging material is comprised of one or more layers of coating disposed on one or more layers of textile substrate. The coating layer may be comprised of a stiffening agent for providing support to the packaging container. The stiffening agent may provide a gas and/or liquid impermeable barrier between the contents of the container and the textile substrate. The stiffening agent may also include chemicals which impart antifungal or antibacterial properties to container. The textile substrate typically provides an aesthetically pleasing feel and appearance to the outside of the packaging container, as well as providing functional attributes such as water repellence, stain resistance, and/or anti-static resistance. The resulting packaging container possesses increased strength, puncture resistance, and resistance to de-lamination over the current paper or plastic packaging containers.

Abstract: A synthetic resin bag is used for storing grain or animal feed. The bag includes an inner layer made of polypropylene textile woven in gauze, a coating layer attached to an inside surface of the inner layer, and an outer layer attached to an outside surface of the inner layer. Attaching between the layers is made by polypropylene resin applied thereto. The coating layer is made of high-density polyethylene film, and the outer layer is made of oriented polypropylene film mixed with non-slip material for raising coefficient of friction of the outer layer to 0.5 or more. Also, the outer layer has a printed inside layer. The bag allows inhibiting penetration of moisture in the air and preventing absorption or leakage of fat or oil in contents. Also, the bag is prevented from slipping and falling when stacked or conveyed.

Abstract: Packaging for receiving liquid, pasty, powdery, granular or solid material having tear-open means and sealed edges and made of a foil-shaped composite material. The foil-shaped composite material has multiple layers. At least one layer of the composite material does not have weakened areas. At least one layer of the composite material has weakened areas located in the packaging at least partly in the area of the filling space. The weakened areas are preferably a plurality of parallel individual cuts.

Abstract: A method for manufacturing a bag for use in vacuum packaging comprises forming a first panel including a tray for retaining contents within the bag and a second panel. Optionally, the tray can include a plurality of ridges or protuberances for suspending contents such that liquid can collect in the tray. Each panel comprises a gas-impermeable base layer and a heat-sealable inner layer molded from melt-extruded resin. The first panel is overlapped with the second panel, and three of four edges of the panels are heated such that the inner layers bond at the heated edges. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

Abstract: Packaging for receiving liquid, pasty, powdery, granular or solid material having tear-open means and sealed edges and made of a foil-shaped composite material. The foil-shaped composite material has multiple layers. At least one layer of the composite material does not have weakened areas. At least one layer of the composite material has weakened areas located in the packaging at least partly in the area of the filling space. The weakened areas are preferably a series of cuts or a plurality of parallel individual cuts.

Abstract: In a bag 10 for packaging having a first face 10A and a second face 10B that are mutually opposite, a first line of weakness 100A (100B) and a second line of weakness 200A (200B) and a third line of weakness 300A (300B) constituted by a plurality of breaks of perforation form arranged between the first line of weakness and the second line of weakness and having an inclination with respect to a prescribed unsealing direction L50 are respectively formed in the first face and the second face such that these are arranged in mutually parallel fashion, and the plurality of breaks of perforation form constituting the third line of weakness formed in the first face and the plurality of breaks of perforation form constituting the third line of weakness formed in the second face are formed inclined in mutually opposite directions with respect to the prescribed unsealing direction. In this way a finger-grip portion of suitable extent is formed at the unsealed aperture of the bag for packaging after unsealing.

Abstract: A standup bag for granular products or the like and a method of manufacturing the bag. The standup bag is manufactured from an extruded heat sealable material and includes both an integral handle and a perforation to facilitate opening and pouring out the contents of the bag.

Abstract: A nested safety mailing envelope having a first and second compartment. The first compartment is attached within the second compartment. Each compartment has a seal that may securely seal each compartment. The seals are in line such that the inner compartment seal may be closed and the outer compartment seal provides a secondary enclosure of the inner compartment.

Abstract: A method for making a vacuum packaging film includes flowing a plastic melt, from a multi-layer extruder, onto a rotating roller. The plastic melt is then cooled while simultaneously imparting a pattern, via a pattern imparting means, onto the plastic melt resulting in the vacuum packaging film.

Abstract: A packaging member (1, 80, 100) is provided with easy-opening means (7, 85, 107, 108) for allowing the packaging member to be opened easily, wherein the easy-opening means is either positionally or structurally improved. As one example, the packaging member is a packaging bag (1, 80), in which the easy-opening means serves as a tearing start point when opened with the use of the easy-opening means. The easy-opening portion is formed at a position slightly shifted inward from a perimeter edge of the packaging bag. As another example, the packaging member is a packaging container (100), in which the easy-opening means is structurally improved.

Abstract: Sanitary and breathable packaging for food products is of the type that includes a container having laminated walls with at least an insertion opening which is closed so as not to be subsequently reusable. At least one weakening line is provided for tearing to allow contents to be extracted. Holes are provided around the package in size and number for internal aeration.

Abstract: A baling bag is provided for automatic bale bag processing. The bag has front and back panels and adjoining left and right side panels and a closed bottom panel. An open top portion is defined by the front, back, left, and right panels at an end of the bag opposite the closed bottom panel. An aperture is provided in the bag proximate the top portion to permit the bag to be hung on an automatic bag extraction and loading mechanism.

Abstract: An inflatable insulating panel consisting of a plurality of sheet-form polyolefin layers, and its manner of fabrication, is provided. An outer peripheral seal forms an inflatable panel, with an intermediate interconnected web of layers formed out of an array of alternating seams of attachment between the outer and intermediate adjacent layers. Upon inflation of the panel, the interconnected web expands to form a plurality of individual baffle chambers.

Abstract: Bag for wrapping food items, in particular breed, rolls, and snacks, made of a composite material having at least one first layer made of a material containing cellulose and a second layer made of plastic; the first layer has a specific weight of 15 to 50 g/m2, preferably from 15 to 40 g/m2, and the second layer is from 6 to 20 &mgr;m thick. The composite material is perforated, and the ratio of open surface area to total surface area of the composite material is between 1/50 and 1/250, and the first layer made of material containing cellulose is interrupted in at least one area for the purpose of inclusion of a window. The window is perforated.

Abstract: A packaging bag comprises a bag body, the first heat sealed portion, and the second heat sealed portion and a tear-starting portion. The bag body is made of a plastic laminate film having a pair of opposite side edges. The bag body is formed by bringing the pair of opposite side edges into contact with each other and heat-sealing them over their entirety to form a tubular shaped body having a rear heat sealed portion, and collapsing the tubular shaped body into a flatten shaped body having a front face, a rear face opposing the front face, a pair of opposite side edge portions connecting the front face and the rear face to each other, a first opened portion and a second opened portion opposing the first opened portion. The rear heat sealed portion is placed on the rear face. The first heat sealed portion is formed by heat-sealing the first opened portion. The second heat sealed-portion is formed by heat-sealing the second opened portion.

Abstract: Packaging for receiving liquid, pasty, powdery, granular or solid material having tear-open means and sealed edges and made of a foil-shaped composite material. The foil-shaped composite material has multiple layers. At least one layer of the composite material does not have weakened areas. At least one layer of the composite material has weakened areas located in the packaging at least partly in the area of the filling space. The weakened areas are preferably a series of cuts or a plurality of parallel individual cuts.

Abstract: Packaging for receiving liquid, pasty, powdery, granular or solid material having tear-open means and sealed edges and made of a foil-shaped composite material. The foil-shaped composite material has multiple layers. At least one layer of the composite material does not have weakened areas. At least one layer of the composite material has weakened areas located in the packaging at least partly in the area of the filling space. The weakened areas are preferably a plurality of parallel individual cuts.

Abstract: Packaging for receiving liquid, pasty, powdery, granular or solid material having tear-open means and sealed edges and made of a foil-shaped composite material. The foil-shaped composite material has multiple layers. At least one layer of the composite material does not have weakened areas. At least one layer of the composite material has weakened areas located in the packaging at least partly in the area of the filling space. The weakened areas are preferably a series of cuts or a plurality of parallel individual cuts.

Abstract: A paper bag with a film inner bag in which the inner bag element is constructed so that its closed end portions can be torn in the lateral direction, thus allowing easy opening by hand across the entire width of the bag or across a part of this width. The inner bag element consists of a synthetic resin film and has cut portions formed along the longitudinal direction in the end portions of the bag that are closed by heat-sealing and that are planned to be opened in the future. The end portion constituting the bottom part is closed by heat-sealing, or by being folded together with the outer bag element or stitched with a sewing machine. The outer bag element, which consists of at least one layer, is formed mainly from craft paper. The synthetic resin film that forms the inner bag element is formed from a thermoplastic resin, and has the property of easy tearing in one axial direction.

Abstract: A dry food pouch is made from a laminate having a plurality of plies made from a flexible material and secured together by an adhesive. The laminate further includes at least one elongated strip of an expandable polymer material applied to a surface of one of the laminate plies. The pouch includes panels secured to each other to define a storage compartment. The pouch further includes reinforcing members that are formed by the elongated strips of expandable polymer material when they are activated to expand and harden.

Abstract: A flexible, collapsible receptacle (hereinafter bag) for handling flowable materials which is fabricated from polymeric fabric and which provides (1) improved static control; (2) improved corrosion inhibition; and/or (3) improved microbial inhibition characteristics. The bag is manufactured by providing a quantity of thermoplastic resin having a predetermined conductivity (anti-static resin); forming the anti-static resin into relatively long, narrow, thin lengths of anti-static material (anti-static tapes); weaving the anti-static tapes into an anti-static fabric having a predetermined, controlled electrical resistivity; cutting the anti-static fabric into a plurality of pieces; and joining the pieces of anti-static fabric together thereby constructing the anti-static bag. Similar methods are disclosed for manufacturing bags having improved corrosion inhibition and/or improved microbial inhibition characteristics.

Abstract: Antistatic fabric for flexible containers for bulk material that includes electrically non-conducting threads and static dissipative, special permanent antistatic threads. The static dissipative, special permanent antistatic threads are made of a thermoplastic synthetic with an additive mixed in that increases the conductivity. The static dissipative, special permanent antistatic thread is shaped like a small band or tape with an approximately rectangular cross-section or a multifilament of very thin filaments.

Abstract: A liquid container is capable of standing alone and of being used as a water supply container after the same has been emptied. The liquid container (1) includes a container body (4) formed from a laminate film in the shape of a bag, and having a pair of side walls (2) and a pair of gussets (3) extended between opposite side edges of the pair of side walls (2) on the opposite sides of the side walls (2), respectively; and a mouthpiece (8) provided with a flange (7) attached to an open end part of the container body (4), and at least two spouts (5, 6) formed on the flange (7). Each of the gussets (3) is capable of being folded in two along a fold line (3a) inward, the flange (7) has end surfaces (7a) on the side of the gussets (3) and side surfaces (7b) on the side of the side walls (2), the folded gussets (3) are extended from the end surfaces (7a) to the side surfaces (7b) of the flange (7) so that the folds (3a) of the gussets (3) folded in two are positioned on the side surfaces (3b), respectively.

Abstract: A bag having a built-in closure tab is defined. The closure tab is formed from the outer layer of the laminate which makes up the bag. When a user of the bag wishes to close the bag, the user folds or rolls the sides of the bag together down the side of the bag having the tab. The tab is partially separated from the rest of the outer layer of the laminate. A pressure sensitive adhesive disposed on the interior surface of the tab is used to affix the tab to the rolled down portion of the bag, preventing unwanted opening of the bag. The tab may be affixed and removed from the rolled down portion a number of times, thereby allowing the user to open and reseal the bag as many times as desired.

Abstract: The present invention relates to a packaging bag. The packaging bag includes a bag body member. The bag body member has a double-layered structure which is formed by an inner sheet and an outer sheet, whereby toughness of the packaging bag is improved. A carrying handle member is attached to an upper end of the bag body member to enable easy carrying and handling of the packaging bag. A zipper or zippers are installed on an upper end and/or a lower end of the packaging bag, whereby the packaging bag can be rapidly and easily opened and closed.

Abstract: A package containing an organic solvent or solution and a carrier or applicator sheet is produced from a laminated sheet material having a polypropylene surface layer that is resistant to chemical interaction with the solvent or solution. The package is formed by heat sealing the edges together and providing a resealable closure member along the top end. In one embodiment, the bottom wall is attached to the respective side wall along a seal line extending diagonally from the side edge of the side wall to the bottom edge of the side wall. The carrier sheets and solvent/solution are suitable for cleaning hard surfaces prior to applying a paint or other surface coating or for providing a “highlighting” liquid that helps detect surface finish defects and/or a temporary protective coating to prevent adhesion of weld splatter.

Abstract: A standup bags made of a flexible material and methods of producing these standup bags. In particular, the standup bags have at least one substantially flat surface which is free of seams and folds. When the bag is filled with a flowable substance, the pressure exerted by the fluid upon the flat surfaces allows the bag to be self-standing. Additionally, the standup includes at least one contour structure that defines the geometry of the bag and also contributes to the standup bag's ability to be self-standing when even partially filled with a flowable substance.

Abstract: A thin, lightweight, flexible bag for maintaining an initial inner temperature for an extended period of time has multilayered walls with a thermoplastic inner layer and a metalized outer layer. The mouth of the bag has a resealable closure.

Abstract: A standup bags made of a flexible material and methods of producing these standup bags. In particular, the standup bags have at least one substantially flat surface which is free of seams and folds. When the bag is filled with a flowable substance, the pressure exerted by the fluid upon the flat surfaces allows the bag to be self-standing. Additionally, the standup includes at least one contour structure that defines the geometry of the bag and also contributes to the standup bag's ability to be self-standing when even partially filled with a flowable substance.

Abstract: A standup bags made of a flexible material and methods of producing these standup bags. In particular, the standup bags have at least one substantially flat surface which is free of seams and folds. When the bag is filled with a flowable substance, the pressure exerted by the fluid upon the flat surfaces allows the bag to be self-standing. Additionally, the standup includes at least one contour structure that defines the geometry of the bag and also contributes to the standup bag's ability to be self-standing when even partially filled with a flowable substance.

Abstract: The present invention is directed to oriented high molecular weight, high density polyethylene (HMW HDPE) films having enhanced water vapor transmission properties, as well as, superior toughness properties, and articles made therefrom. The present invention is also directed to a method of making machine direction oriented HMW HDPE films having enhanced water vapor transmission properties and superior toughness properties, and articles made therefrom. The present invention is further directed to articles, particularly bags, made from machine direction oriented HMW HDPE films having enhanced water vapor transmission properties and superior toughness properties.

Abstract: One or more patches adhered to a bag have a first-patch-overhang-region and a second-patch-overhang-region, wherein at least a portion of said first-patch-overhang-region is adhered to said second-patch-overhang-region. The overhang regions are preferably present on separate patches adhered to the bag. The patches can extend completely around the bag, eliminating uncovered regions, thereby providing protection against puncture by a bone-in meat product packaged within the bag. This “full width patch bag” has been discovered to be particularly beneficial in reducing punctures in the packaging of whole bone-in pork loins. Other bag embodiments without patch overhangs are also disclosed, for solving the bone puncture problem by providing alternative full width patch bags.

Abstract: The invention relates to a soft-sided carrying case and a method of manufacture thereof. The carrying case is made from moisture-impermeable, flexible, stretchable material, particularly adapted for outdoor use. A main body of the bag is secured by dielectric welding with a pair of drop-shaped end panels to form the carrying case. The main body, being cut on a bias, allows stretching of narrow ends of the main body to substantially conform to the drop-shaped end panels and form a wrinkle-free attachment.

Abstract: The collapsible container is formed by joining plural sheets of laminated films by thermal fusion or otherwise, and the collapsible container is provided with a corrugated edge structure at least in part at the edge of the outer peripheral portion at which the plural sheets of laminated films are joined together. The provision of the corrugated edge structure at the edge of the outer peripheral edge portion of the container can prevent the hand holding the container from being cut and hurt even if the hand would slip along the outer peripheral portion thereof.

Abstract: A self-standing container comprises a tubular main body and a bottom-forming sheet. The main body has upper and lower end portions, which are opened. The bottom-forming sheet is joined to the periphery of the lower end portion by a fusion-bonding so as to form a self-standing container having a flat bottom. Each of the main body and the bottom-forming sheet comprises a laminate film having at least two layers. Each of the at least two layers has a thickness of from 20 &mgr;m to 120 &mgr;m.

Abstract: Multilayer films and packaging structures having a delamination seal and an oxygen barrier layer are disclosed. The delamination structure adjacent to the EVOH oxygen barrier layer binds well to the EVOH layer and also retains its ability to delaminate. The multilayer films, and packages in which they are utilized, have several layers including a first, external layer; a second, tie layer comprising a mixture of polybutylene and an anhydride modified polyethylene such that a peelable bond is formed between said first, external layer and said second, tie layer; a third, core layer comprising ethylene vinyl alcohol which functions as an oxygen barrier layer; a fourth, tie layer comprising an anhydride modified polyethylene and a fifth, external layer.

Abstract: A tubular first member receives a compressible article and, a flat circular member is zip-locked to the first member to create a waterproof, gas-impermeable protective satchel for the article. A one-way valve secured to one of the first and second members allows the compressible article and the satchel containing it to be squeezed to drive out any excess air stored within the article allowing it to be stored at a volume which is as much as 50% reduced from its normal volume.

Abstract: A system for packaging and dispensing fluids including a flexible package having a removable margin portion and retention elements by which a tube may be held in a certain position within the package such that, when the removable margin is detached and pressure is applied to the exterior surface of the package sides, the dispensing end of the tube is indirectly pushed out from within the package inner volume and above the margin of the package for sanitarily dispensing fluid and, upon release of the pressure, the tube may slide back within the inner volume for the sanitary storage of the tube.

Abstract: A plastic packaging material which, when formed as a package having seams, will provide a predictable line of failure along a seam when the package is opened to prevent the package from tearing down the side. The predictable failure path is provided through a lamination process involving specific resins or blends of resins laminated in three (or more) layers in which an extruded inner layer forms a weak inner bond wholly within that inner layer to create the predictable line of failure and in which the process of forming the material does not inhibit processing speed, efficiency, and economics of materials used to provide this reliable openability.

Abstract: A large drum for containing high dispersion, high air content solids for repeated filling and emptying by means of vacuum filling plants and a method for filling them. The drums consist of at least two layers, an inner layer consisting of uncoated air-permeable fabric and an outer layer being coated so as to be dust tight and provide a moisture barrier. These layers being connected to one another by means of a special seam, so that it is possible for the drum to be deaerated solely through this seam. The seam includes an air-permeable dust-retaining filter strip material disposed between the drum layers.

Abstract: A bag for wrapping food items is formed of a composite material including at least one first layer of cellulose-containing material having a specific weight of from 15 to 40 g/m2 and a second layer having a thickness of from 6 to 20 &mgr;m. The composite material has perforations therein. A ratio of the total area occupied by the perforations to a total surface area of the composite material is from 1/150 to 1/250. The second layer may be formed of polyethylene and may be temperature resistant to an elevated temperature. The composite material may be formed of at least one sheet having edges joined along a seam. The bag may have a window therein formed of transparent or translucent material.

Abstract: A woven polypropylene fabric flexible intermediate bulk container (“bulk bag”) is formed with a polypropylene lining bonded directly to the material of the fabric, thereby eliminating any possibility of displacement of the lining relative to the bulk bag. An improved discharge chute having an exterior woven polypropylene fabric tube and an interior polypropylene fabric film liner tube may be used in the bulk bag. In a second embodiment, a polypropylene woven fabric tube is positioned around a polypropylene film tube. The tubes are heat sealed circumferentially to each other to form a tubular blank.