Abstract: A double-ended bag is formed from a tubular woven sheet having at least one tie member extending along the length of the tubular sheet. The tubular sheet is cut to create bag panels and tie member segments in registration. The bag panels are sewn together with the bag panels in registry and the tie member segments in registry.

Abstract: A collapsible bag for use in containing and dispensing a liquid includes a bladder layer and an outer layer. The bladder layer includes a pair of inner opposed panel sections sealed together to provide an enclosed region. The inner panel sections have an inner surface facing the enclosed region and a plurality of ribs formed thereon, and one of the inner panel sections has a first product-dispensing hole therethrough. The outer layer includes a pair of outer opposed panel sections covering the bladder layer and one of the outer panel sections includes a second product-dispensing hole therethrough aligned with the first product-dispensing hole. A spout is attached to the outer layer and covers the first and second product-dispensing holes to provide access to the enclosed region. The bag may be used in a box to dispense liquids.

Abstract: Reclosable bags, plastic film for making the bags, and a method and apparatus for making the bags are disclosed. The bag has a reclosable fastener (26) connected to a single wall of the bag, and the film (55) has a reclosable fastener (26) connected to one side thereof which does not require attachment to any other portion of the film (55) when making a bag. The fastener (26) has a tamper-proof member attached thereto to indicate if the bag has been previously opened. The film (55) can be wound into a roll (54) suitable for use on conventional bag making machines including form, fill, and seal machines or a chain of coilable reclosable bags can be produced therefrom since the fasteners (26) are connected to the web preferably transversely to the bags longitudinal formation axis.

Abstract: A bag suitable for use in microwave cooking is constructed of an elongated tube of flexible material closed at one end by means of a cold seal closure and having a heat seal adhesive deposit applied to the other end thereof for use in closing the bag after filling thereof; and methods of making the same are described, including the making of a roll from which said bags can be made.

Abstract: An apparatus (31) and a method are disclosed for performing an operation upon multiple webs (51,53), including the feeding of multiple webs (51,53), the provision of a carrier (65) for assisting in moving the webs (51,53) along a predetermined path (83), the performance of an operation (69) upon the webs, the insertion of a carrier (65) between the webs (51,53), and the provision of a sealing device (71) for sealing the webs together to form a sealed portion (75) to cooperate with the carrier (65) for assisting in moving the webs (51,53). The carriers (65) are mounted on a conveyor (83) and each carrier (65) pushes against the sealed portion (75) to pull the webs (51,53), and the packages (41) formed therefrom in the direction of conveyor travel. The preferred carrier (65) has a shaped head on the end of a flat plastic blade.

Abstract: A decorative bag making apparatus 10 and method of use wherein the apparatus 10 comprises a sizing unit 11, a centerpiece unit 12, and a face unit 13 which cooperate with one another and a sheet of decorative material 100 to fabricate a finished decorative bag 110.

Abstract: The steps of constructing the box sleeve are patterning a single piece of fabric (10) to have a top edge (71), two side edges (73), (75) and a bottom edge (70); drawing a fold line (72) in the center of the fabric piece (10) to form first (74) and second (76) halves where each half includes at least one side edge (73), (75) and half the bottom edge (70); removing a portion of the fabric along both side edges (73), (75) and the bottom edge (70); removing a portion of the fabric along the bottom edge (70) adjacent the fold line (72); sewing the side edges (73), (75) together; sewing the two halves of the bottom edge (70) together; and constructing a closure (120), (126) along the top edge (116).

Abstract: Adhesive, preferably pressure sensitive adhesive, is applied to an article f manufacture, such as the closure flap of an envelope or paper bag in such a way that the adhesive is protected against activation prior to closing the article. For this purpose, the adhesive is first applied to a continuous web or tape of a carrier material that either has an inherent anti-stick characteristic or is provided with an anti-stick surface coating relative to the adhesive to be applied. Preferably, the adhesive does not cover the entire surface of the carrier strip, but rather covers only areas in the form of stripes extending at least partly across the width of the carrier web. The adhesive stripes are spaced from one another and preferably also from at least one edge of the carrier web or tape. The carrier web is then severed into strips, each provided with one adhesive stripe and these strips with the adhesive stripes thereon are then secured between two rollers to the surface area to be provided with the adhesive.

Abstract: A method of making continuous rolls of a thin laminate composite that is ideally suited for the large scale production of reclosable bags which can be used for sealably packaging a wide variety of articles, including food products. The bags of the invention, after being opened, can quickly and easily be closed by rolling the open end downwardly upon itself in a manner to sealably deform one or more inelastic, malleable metal filaments which are encapsulated within at least one of the laminate side walls of the bag. The novel laminate composite material produced by the method of the invention comprises first and second thin layers of film between which one or more length of the thin malleable metal filaments are sealably encapsulated.

Abstract: An envelope construction for high speed printing includes a front panel having a flap with a sealing adhesive strip on its back side, and a rear panel secured to the front panel at its marginal edges to form a pocket. The thickness of the adhesive strip is substantially the same as the thickness of the rear panel so that when the flap is opened, the overall configuration of the envelope is flat to facilitate stacking and feeding. The combination of the strip and the rear panel are both secured to the back side of the front panel, and the combination adds a layer of a uniform thickness to provide the desired flat aspect. Like such envelope constructions are arranged in a stack within a paper tray. The topmost one of the envelope constructions is separated from the stack seriatim at high speeds to feed them individually to the printer for printing thereon.

Abstract: A process for the construction of a flexible bulk container including a glued bottom portion and/or a glued top portion. A sidewall blank having a hollow tubular configuration with an upper and lower portion suspended in the shape of the desired container and positioned over a bottom wall located on a raised work area. Adhesive or glue is applied to either the bottom wall and/or the sidewall in areas where the sidewall blank will be permanently in contact with the bottom wall. The sidewall blank is lowered into contact with the bottom wall such that the lower portion of the sidewall blank is located below the work area and the upper portion is located above the work area. The sidewall blank is secured to the bottom wall by folding the upper portion of the sidewall blank over the bottom wall thereby contacting the adhesive or glue and forming a glued bottom bag.

Abstract: A method of manufacturing a bulk bag, which bulk bag can be used for shipment of powder without loss, yet which does not require a full inner liner for the bulk bag and has a surface receptive to imprinted indicia on the bulk bag body. A bag body of height Y is cut from a fabric tube of circumference X having an imprint-receptive outer surface and is partially lined with a tubular partial film liner of like dimensions; two bands of reinforced resin tape are adhesively bonded to the top and bottom rims of the body liner. There are top and bottom panels, each cut from a flat web of coated, powder-impervious fabric, and each having a circumferential length X; these panels are stitched into the bag body with stitching that extends through the resin tape to simultaneously mount the panels and the partial liner in the bag body, completing a bulk bag suitable for powder shipments but with an imprint-receptive external surface.

Abstract: A container made of thermoplastic material has a bottom, a lid and a wall that extends between the bottom and the lid. The wall is substantially less thick than the bottom and the lid and is designed as a film soldered along a longitudinal seam and welded to the bottom and the lid.

Abstract: An expandable folder is provided which includes a front panel member, a rear panel member, and an expandable gusset which connects the panel members and forms the bottom and sides of the folder. Reinforcing means are provided upon critical or highly stressed locations to enhance the durability and useful life of the folder. Various types of reinforcement are provided about and, preferably, over the top of the gusset. The end portions of the gussets along the sides and, where applicable, the bottom, preferably have a width which is at least twice the width of the gusset folds. The outer surfaces of the inner front and rear panel members are also reinforced to strengthen the folder at least in the areas where the gusset is attached, and, for best results, on the entire outer surfaces of the panels.

Abstract: A process for the construction of a bulk container including a glued bottom portion. A sidewall blank having a hollow tubular configuration with an upper and lower portion is suspended in the shape of the desired container and is positioned over a bottom wall located on a raised work area. Adhesive or glue is applied to either the bottom wall and/or the sidewall in areas where the sidewall blank will be permanently in contact with the bottom wall. The sidewall blank is lowered into contact with the bottom wall such that the lower portion of the sidewall blank is located below the work area and the upper portion is located above the work area. The sidewall blank is secured to the bottom wall by folding the upper portion of the sidewall blank over the bottom wall thereby contacting the adhesive or glue.

Abstract: A method and apparatus for manufacturing an improved bag for the cultivation of mushroom spawn is provided. The bags have continuous gas permeable sealing strips sealed to the inside walls of the bags which cover openings in the bag, so as to allow the bag to be vented without loss of moisture. The openings and sealing strips are positioned close to the top and bottom of the bag so as to maximize air flow through the mushroom spawn without creating dry spots, thereby improving spawn yield. The apparatus includes rollers for dispensing plastic film and at least one continuous hydrophobic strip of material. A series of apertures are punched by cutting dies in the film, and a vacuum system removes the cut out portions. The strip of material is positioned over the apertures and sealed by sealing dies over them, so as to enclose the apertures. A cutting dies cuts off the film and strips. A conventional bag making machine then forms the bags.

Abstract: A closure arrangement for a polymeric bag having a pair of opposing films which comprises first and second, opposing base strips each having inner outer surfaces with the outer surfaces adapted for attachment to the films. The inner surface of the first base strip includes a plurality of low-temperature sealant ribs which are connected to a peelable strip on the inner surface of the second base strip. The connection of the plurality of low-temperature sealant ribs and peelable strip form one-time peelable seals.

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: Apparatus for use in removing hazardous material from an elongated pipe has an upper work section comprised of a sheet of flexible material having a centrally located opening and a lower debris collection and disposal bag that depends from the upper work section about the opening. Gloves are mounted to the upper work section sheet. So constructed, upon wrapping and securing the upper work section about a pipe with opposite ends thereof drawn upwardly thereto aside the opening, the work section is configured into the shape of a funnel for funneling debris worked from the pipe down into the debris collection and disposal bag. The apparatus is made by cutting one or more holes in a generally rectangular sheet of flexible material such as plastic, mounting gloves to the sheet, and mounting bags to the sheet about the holes.

Abstract: A method for manufacturing a liner having baffles therein for use in flexible bulk containers, having the steps of: positioning a baffle strip of thermoplastic material adjacent to a continuous sheet of thermoplastic film; heat sealing the baffle strip to the continuous sheet of film at spaced apart intervals; alternately varying the length of continuous sheet film adjacent to the length of baffle strip material between adjacent heat seals to form pockets of excess continuous sheet film between alternating pairs of heat seals; cutting the continuous sheet to a length substantially equal in length to the circumference of the flexible bulk container and; folding the continuous film sheet in half with the attached baffle strip on the inside of the fold and with the fold extending perpendicular to the length of baffle strip; and heat sealing the ends opposite the fold to form a tubular shaped liner with the pockets of the excess film sheet forming corners therein.

Abstract: The present invention relates to the composition, preparation, and use of multi-layer composite films comprising a core layer of low gas permeable material, two intermediate layers sandwiching the core layer, and two outer layers sandwiching the two intermediate layers. The core layer provides the excellent oxygen barrier property, whereas the intermediate and outer layers protect the core layer so the oxygen permeability of the resulting multi-layer composite film becomes independent on relative humidity.

Abstract: An apparatus for welding a reinforcing member to a bag-like device or contraceptive device is disclosed. The apparatus includes at least one hollow mandrel. The hollow mandrel has an outer surface with an annular groove for holding the reinforcing member. The apparatus has a means for applying a closed end of the bag-like device into the hollow mandrel and an open end of the bag-like device over the hollow mandrel at the outer surface with the annular groove for welding holding the reinforcing member. The apparatus also includes a welding device for the reinforcing member to the bag-like device. A method for welding the reinforcing member to a bag-like device is also disclosed.

Abstract: This applicator mitt includes an inner pouch and an outer pouch providing a cover for the inner pouch. The inner pouch includes an outer face receiving a treating substance and is formed from a pair of panels, attached on two sides and one end and having separable margins on the other end to receive the hand portion of the user. The outer pouch can be a simple envelope or can be formed from a pair of panels attached to each other and to the inner pouch, said panels being removable to expose the inner pouch treating substance but remaining attached to the inner pouch during use.

Abstract: The present invention relates to the composition, preparation, and use of multi-layer composite films comprising a core layer of low gas permeable material, two intermediate layers sandwiching the core layer, and two outer layers sandwiching the two intermediate layers. The core layer provides the excellent oxygen barrier property, whereas the intermediate and outer layers protect the core layer so the oxygen permeability of the resulting multi-layer composite film becomes independent on relative humidity.

Abstract: Disclosed is an oriented, heat shrinkable, thermoplastic vacuum bag having a protective heat shrinkable patch attached thereto such that said heat shrinkable patch covers substantially all area exposed to bone, thereby protecting the bag from puncture by sharp protruding bones in bone-in cuts of meat which are vacuum packaged within the bags. The protection is especially directed to prevention of bag puncture by, bone-in cuts of both fresh and smoked or processed meat. The bag produced by this method is also disclosed.

Abstract: This applicator mitt includes an inner pouch and an outer pouch providing a cover for the inner pouch. The inner pouch includes an outer face receiving a treating substance and is formed from a pair of panels, attached on two sides and one end and having separable margins on the other end to receive the hand portion of the user. The outer pouch can be a simple envelope or can be formed from a pair of panels attached to each other and to the inner pouch, said panels being removable to expose the inner pouch treating substance but remaining attached to the inner pouch during use.

Abstract: A five-piece expanding pocket having front inner and outer panels secured to each other by cohesive glue, rear inner and outer panels secured thereof by cohesive glue, and a gusset having outer edge portions with cohesive glue and opposite sides thereof bonded between edge portions of the front and rear inner and outer panels which are bonded to each other. A fixture for assembling a five-piece expanding pocket including locating plates for retaining front and rear inner panels in a predetermined position, a positioning member for locating a gusset relative to the front and rear inner panels on the locating plates and permitting the gusset to be secured to cohesive glue on the front and rear inner panels, and the locating plates also permitting the locating of the front and rear outer panels relative to the front and rear inner panels, respectively.

Abstract: A process for the construction of a bulk container including a glued bottom portion. A blank is suspended in the shape of the desired container and is positioned over a bottom portion. Adhesive or glue is applied to the bottom portion in areas which will contact the blank. The blank is lowered into contact with the blank and fins are formed. The fins are either folded, cut and/or secured to complete the container in one of several ways.

Abstract: A one-piece file folder is provided with an integral tab structure. The preferred file folder broadly includes a paperboard body formed into a plurality of panels hingedly connected by a fold line. The panels are folded along the fold line and secured to form an assembled file folder. The file folder also includes an integral tab structure cut from one of the panels which presents a fold line common to the paperboard body fold line. The tab structure pivots about the fold line so that it either extends from the assembled file folder or lies flat relative to the assembled file folder.

Abstract: A method of and apparatus for attaching a spout to a planar portion of an article such as a milk or juice carton, which may be integrated into conventional carton forming and filling machines, includes the steps of heating a stem of a spout, applying a bonding agent to a flange on the spout, positioning the spout in a predetermined relation to a spout applicator, positioning a carton with a hole provided in a predetermined relation to the spout applicator and attaching the spout to the carton where the heated stem is deformed to mechanically engage the carton about the hole. An apparatus to accomplish the method is also disclosed.

Abstract: A collapsible bulk bag which when filled with material has a generally cubical configuration with a pair of end walls and rectangular sidewalls extending between them with all of the walls being of a flexible material. Bowing and bulging of the sidewalls from a planar configuration is retarded and restrained by loops of cord operably connected with the sidewalls. Preferably the loops of cord having portions inside the bag extending obliquely between adjacent sidewalls when the bag is filled. Method and apparatus for making the bag with the double knotted loops of cord are also disclosed.

Abstract: A method of laminating a customized presentation folder including placing a plastic cover sheet on one cover face of the folder and sealing the bottom of the plastic cover sheet thereon, inserting an insert sheet behind the plastic cover sheet in-between it and the cover face, inverting the folder and urging the folder, bottom first, through a laminator for fabricating a customized presentation folder in which any skinning that occurs on the inside of the folder is hidden.

Abstract: Business forms are sealed by pressure with reduced tenting and pillowing. Each form has a strip of pressure sensitive adhesive of a predetermined width. In an automatic continuous, sequential manner, upper and lower rollers operatively biased together by spring pressure activate the pressure sensitive adhesive to affix one part of the form to another. The force applied by the rollers is applied only to the approximate area of the predetermined width of the adhesive, not over the whole form. Conveyor tapes are associated with the rollers to facilitate conveyance of the forms, and a pressure of about 120 lbs. per lineal inch is applied to the pressure sensitive adhesive. A buckle or insert folder can be used to fold the forms, and they are then fed to a first pressure sealing module. A 90.degree. transfer conveyor conveys the forms from the first pressure sealing module to a second module, and from the second module they are removed by a discharge conveyor.

Abstract: A tamper-evident Seal for a plastic envelope with a pocket and closing flap having first adhesive sealing means for sealing the flap to the envelope and a second, tamper-evident sealing means adhering to the end of and extending beyond the end of the flap which also adheres to the envelope after the flap is closed and sealed.

Abstract: This applicator mitt includes an inner pouch and an outer pouch providing a cover for the inner pouch. The inner pouch includes an outer face receiving a treating substance and is formed from a pair of panels, attached on two sides and one end and having separable margins on the other end to receive the hand portion of the user. The outer pouch can be a simple envelope or can be formed from a pair of panels attached to each other and to the inner pouch, said panels being removable to expose the inner pouch treating substance but remaining attached to the inner pouch during use.

Abstract: A flexible pouch formed from a single sheet of plastic material folded over upon itself along an umbrella like fold assembly to provide the opposed walls of a chamber for storing a product and an optional second sheet to form the bottom of the chamber. The walls and the bottom are sealed along their periphery to form the chamber. The pouch has a self-opening spout formed in part by the fold assembly which expands and springs open when the sealed end of the spout is cut off. The fold assembly not only provides a large spout opening, but also provides a spring force which keeps the spout open so that all the product may be emptied from the chamber.

Abstract: A flexible pouch is made having a gusseted bottom structure and an inwardly folded top structure from two webs. A first web is folded over on itself to form an inverted U-shape portion and excess web material is pushed inwardly at the top of the fold to create a U-shaped fold at the top of the pouch. A second web is moved into contact with the open end to form the gusseted bottom. The webs are sealed and served to form the individual pouches.

Abstract: A method for manufacturing improved paper office supplies comprises determining which critical areas or portions of the office supplies are prone to wear and tear, and applying reinforcement upon or adjacent to those critical areas or portions to increase the strength and resistance of the office supplies to such wear and tear. This invention also provides some examples of reinforced paper office supplies.

Abstract: The subject of the invention is a feeder wherein it includes at least one xed magazine (10) for storing stacked sheet elements (8), one press roller (11) cooperating with a device (4) for continuously feeding each flat support (2) to be provided with one sheet element (8), at least one member (22) for picking up and laying down the sheet elements one at a time by means of suction, and means (12 to 17) for supporting and actuating said picking up member (22), said means being disposed so as to provide said member with at least a partly hypocycloidal trajectory (30, 30') so that two points (31, 32) for turning back the hypocycloid coincide with firstly the point for picking up a sheet element (8) in said magazine (10), and secondly with the point for transferring said element (8) to said press roller (11).

Abstract: A stabilized flexible container for receiving flowable materials includes a top wall, a bottom wall, and a perimeter wall formed from four double layered side walls seamed together along adjacent side edges. The exterior layer of the double layered side walls is greater in length than the interior layer and is folded inwardly upon itself and stitched along the side edges to form a pocket in a space between the interior and exterior layers of the double layered side wall with the side edges of the exterior layer in the pocket region being free from the seam connecting the adjacent side walls. The interior layers of the side walls are seamed together in the pocket region and are seamed along their bottom edges to the perimeter of the bottom wall. Rigid panels are inserted into the space between the interior and exterior layers of the side walls and are secured in the pocket to prevent the rigid panels from slipping out of the side walls.

Abstract: A method of assembling an air bag comprising the steps of: providing at least one piece of material used to form the air bag; placing generally near a first edge of the material which is to be sewn a series of target markings; providing generally near a second edge of material to be sewn to the first edge a series of indicator markings; overlaying the first and second edges together; and sewing the edges together along a preferred sew line such that the indicator markings fall within the target markings.

Abstract: The stiffness of a flexible, substantially parallelepipedal container formed by shaping and welding a film which is made of a synthetic material and which is to enclose a liquid to be packaged, is improved by applying, before shaping, a second layer of a film formed of an identical or a different material, as a top film, to the surface of the film forming the container which does not subsequently come into contact with the liquid to be packaged. The top film includes a plurality of strips corresponding to the vertical surfaces of the final container which are welded to the film forming the container before shaping, along lines corresponding to the edges of the final parallelepipedal container.

Abstract: In a flexible container, there is provided three or more approximately rectangular main sheets, and a rectangular inlet sheet and outlet sheet are provided on an imaginary line passing through approximately the central part in the width direction of each of the main sheets. One end of each of the inlet sheet and the outlet sheet in the direction along the imaginary line is sewed to an end of the main street corresponding to the one end, and the other end of each of the inlet sheet and the outlet sheet is projected away from the main sheet in the direction along the imaginary line. The imaginary lines of assembly sheets each constituted by the three types of sheets conform to one another, opposed surfaces of the adjacent assembly sheets are joined to each other, and outer side edges of the adjacent assembly sheets are sewed together.

Abstract: The present invention provides an automatic machine for making accordion data pockets, especially an automatic machine which is capable of bonding the inner leaf members, side cover members, and bottom member of an accordion data pocket together in one step. The machine is characterized by a fixed and a movable die seats, a top press die, two side press dies, two side boards, etc. The movable die seat has a plurality of cavities formed on its top surface, allowing index holders provided on each inner leaf member of the data pocket to insert in, and a plurality of properly and equally spaced partition plates vertically erected thereon. The fixed die seat has a plurality of properly and equally spaced positioning plates vertically erected thereon and each of the positioning plates has chamfers formed at its one vertical side and its top horizontal side.

Abstract: A pocket for a folder and a method of making such a pocket and a folder having such a pocket more economically while also allowing ease and convenience of assembly by a customer and allowing a customer of a stationery shop greater flexibility in selecting a mix of folders with pockets and folders without pockets. The pocket has a panel and side and bottom tabs which are scored for folding easily. The pocket panel is disposed in position on a panel of the folder with the tabs between the pocket panel and folder panel, the bottom tab extending along the bottom edge of the folder panel and the side tab extending along a side edge of the folder panel, and the tabs adhesively attached to the folder panel to provide an opening to the pocket which extends along both the upper edge and a side edge thereof for conveniently putting papers therein.

Abstract: A bonded unitized envelope stack, manufacturing apparatus, and manufacturing method are provided in which envelopes in a stack are inter-connected by application of two spots of adhesive on the front panel of each envelope to engage the lower panel of the next above envelope. In one embodiment of the present invention, a conventional folding machine including a seal folder flap trap is modified to enable the application of the two spots of adhesive on the front panel of each envelope, and to produce bonded envelope stacks having a given fixed quantity of envelopes. When an envelope enters the seal folder flap trap, a photocell detects and triggers one counter of a dual counter system. A first counter increments each time an envelope enters the trap, until a count termed "preset 1" is reached. When "preset 1" is reached by the first counter, the glue applicator is deactivated. A second counter is then incremented.

Abstract: A container has a body made of superimposed layers of flexible plastics film and a port sealed between said layers. The port comprises superimposed layers of flexible plastics material which provide a channel. A layer of non-sealable material is located in said channel during sealing of the port to the container body so as to prevent the opposing surfaces of the channel from being sealed together, said non-sealable layer being thereafter removed. Preferably the port comprises two layers of film united at one end thereof and along opposite sides thereof to provide the channel with a rupturable closure at the one end.

Abstract: An article of manufacture comprises a plurality of nested plastic bags for use in lining containers such as garbage cans or waste paper baskets. The assembly is manufactured by placing successive plastic bags over a jig. The upper edges of the plastic bags are adhered to each other, for example, by conventional heat sealing means. The adherence between individual bags is such that the innermost bag can be separated readily from the remaining bags after the assembly is placed within a container.

Abstract: An internally pressurizable lightweight high tensile strength multi-layered structure with an outer barrier layer envelope of elastomeric semi-permeable material for use as a cushioning device is provided. The outer barrier layer is bonded, at a multiplicity of sites, to substantially the entire distal surfaces of a double-walled drop-thread linked fabric wherein the filaments are comprised of a highly distorted, long chain, axially orientated crystalline molecular structure which has a low gas permeability. The bond between the barrier layer and the facing fabric is substantially increased by the presence of fibrils and texturizing. The drop threads which are likewise texturized, function as stress averaging members to maintain the composite structure in either a substantially flat or planar or contoured configuration without weldments within the select load-bearing areas.

Abstract: A method for manufacturing a web of interconnected bags from a semitubular web of material, in which pockets are formed at a first side of the web and a second side of the web adjacent a first of two longitudinal outer edges of the web. At least one continuous strip is inserted into the pockets before separation of the bags. The strips are cut to predetermined lengths, and their ends are fastened together. The web is welded together along transverse lines substantially perpendicular to the pockets for producing one bag at a time, which is conveyed transversely substantially perpendicular to the direction motion of the web. The pockets project at one of the two sides of the web beyond the pockets on the other side of the web substantially perpendicular to the direction of motion of the web. Each bag is welded and conveyed substantially perpendicular to the direction of motion of the web.