4466results about "Bag making operations" patented technology

The package generally includes at least one front and back panel joined at least partially together to define an interior accessible through an access opening. The interior is capable of storing and dispensing product and other objects or materials. Further, at least one web member can be joined to each of the front and back panel portions respectively to form at least two generally parallel chambers and / or channels that extend generally along at least a portion of the access opening. In one embodiment, each of the chambers includes a reservoir or storage portion and a closure portion in fluid communication such that either the reservoir portion or the closure portion are generally inflated or expanded to correspondingly close or open the access opening.

A container (1) comprising a compartment (4) which is defined by flexible walls and whose volume depends on the relative position of the walls, two opposite side walls (2) being joined along a common connecting portion (5). The container is characterised in that a first gas-filled duct means (11) is arranged in the connecting portion (5) along at least a first side (12) of the container (1). The invention also concerns a method of producing such a container by forming at least one gap in said side walls (2) in connection with the forming of the connecting portion (5) and, in connection with the filling of the container (1), filling each gap with gas and sealing it to form a gas-filled duct (11, 16, 18).

An air-evacuable bag has a one-way valve therein having two layers of valve film, neither of which is the sidewall of the bag. By forming the one-way valve of smooth, double-layered valve film, unwanted air gaps caused by textured surfaces in the sidewalls of the bag are avoided, thereby minimizing air leakage back into an evacuated bag. A method for the manufacture of such air-evacuable bags incorporates a roll supplying a first valve film layer, a roll supplying a first sidewall layer, a roll supplying a second valve film layer, and a roll supplying a second sidewall layer. As the film coming off the first valve film layer roll passes the roll supplying the first sidewall layer, both the sidewall layer and first valve film layer move in close proximity to one another until the valve film is tacked to the first sidewall layer. The second film and second sidewall layer are processed simultaneously in a like manner, and all four layers are joined at a sealing station.

The present invention relates to a multi-layered composite bag used to store bulk type products such as pet food, seeds, fertilizer, cereals, grains, charcoal, sand, gravel, and other bulk products, including without limitation bulk products intended for human and non-human consumption, and provides a more efficient manufacturing process than using a paper / plastic structure. The present invention provides a bag comprising a middle layer of woven mesh tubing to which an outer layer of solid plastic film is adhered using polypropylene or other polylaminates.

A non-durable flexible container can include a first film wall including a first portion comprising at least one first structural support member defined in the first film wall, and a second portion that is free of a structural support member. The container can further include a second film wall including at least one second structural support member defined in the second film wall, wherein at least a portion of the first structural support member is adjacent to at least a portion of the second structural support member to define a seam region, and a side of the seam region defines an edge of the non-durable flexible container. The container can also include a closed produce volume defined between first and second film walls; and a seam projecting outwardly from the seam region at an intersection of the first and second film walls.

A resealable container having an easily accessed yet airtight seal via the use of a tamper evident rupture strip which provides the container or package with improved shelf life for the product contained therein.

A device for manufacturing tubular bag packages has a forming tube with a rectangular cross section. In order to produce reinforcing seams in a projection of the broad side walls of the tubular bag package, the device has a forming and folding device. The forming and folding device has two forming plates attached to the forming tube and a folding frame with folding plates. The relatively simply embodied device according to the invention makes it possible to form the reinforcing seams with less stress on the packaging material.

A stand-up packaging pouch manufactured in three-dimensional form or flattened form and provided with at least front face portion and rear face portion sides formed from packaging material having a pleat which is formed by folding a part of the packaging material in a three-fold strip form and adhering the inner faces of this folded part is constituted such that when the pouch is opened out into three dimensions, the pleat, formed in the same plane as the peripheral face portion, is positioned at a substantial right angle to a bottom face portion, thereby concealing the bottom face portion.

An apparatus for inflating and sealing packing cushions utilizes a controller adapted for acquiring information from preconfigured film material and automatically setting one or more operation parameters suitable for inflating and sealing the film. The controller can avoid or limit the need for user input, thus simplifying use of the apparatus.

The thermal bag (2) is made of thermally insulating composite material folded to form a bottom and welded along lateral borders (3) to form a body (1) of the bag with a mouth (5) at the level of which a handle (7A, 7B) is applied. The composite material defines a bottom folded in an accordion-like fashion opposite the mouth of the bag, and a laminar stiffening element (15) of the accordion-like bottom is disposed inside the bag.

A package having fluid-filled chambers that form a line of contact that seals the package. The package generally defines an interior cavity accessible through an opening. Opposing portions of the opening may include at least one fluid-filled chamber to seal the package. The chamber may be held in sealing contact with an opposing structure or with each other by fastening means that hold the opposing portions together. In another embodiment, opposing chambers themselves may interlock to maintain sealed contact. The package may include an auxiliary opening so that an end user can fill the package with articles of the user's choice. The auxiliary opening can be sealed at least over a portion of its length. In another embodiment, first and second compartments are isolated by the fluid-filled chamber seal, with the seal being selectively breachable to enable transfer of product from the first to the second compartment.

The present invention is a washable and reusable storage bag comprising a plastic coated canvas made from cotton and polyethylene. The storage bag comprises a front panel having a zipper and a back panel, a bottom edge and a top edge, and two side edges. The bag further comprises a rectangular transparent polyurethane window in the front panel, preferably in the shape of a rectangle. Two opposing sides of the transparent polyurethane window are heat sealed to the plastic coated canvas to create a liquid tight seal between the transparent polyurethane window and the plastic coated canvas. The outside of the storage bag can be customized with, e.g., designs, branding, and / or advertising. The storage bags can be hand washed, put in the dishwasher or put in the washing machine and clothes dryer.

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.

A method of making a plurality of flexible containers (12 / 112 / 212) comprising the steps of manufacturing a plurality of bag structures (13 / 113 / 213), separately manufacturing a plurality of valves (10 / 110 / 210), aligning the valves (10 / 110 / 210) with openings (24 / 124 / 224) in the bag structures (13 / 113 / 213), and securing the aligned valves (10 / 110 / 210) to the bag structures (13 / 113 / 213). Each valve (10 / 110 / 210) comprises a vent layer (30 / 130 / 230) which is pervious with respect to expected gasses and a sealed passageway is formed between the vent layer (30 / 130 / 230) and the container (12 / 112 / 212) when the valve (10 / 110 / 210) is secured to the bag structure (13 / 113 / 213).

A perforation blade is used for cutting a perforated tear line in a bag to form an easy-open corner portion. The perforation blade includes a base formed to span the corner portion of the bag. The base has a first end adapted to extend to the end edge of the bag proximate a seal line, and a second end adapted to extend to one side edge of the bag. A series of closely spaced perforation teeth are formed with the base, and are adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag. A starter tooth is formed at the first end of the base, and is adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line. A burst protection gap is formed between the starter tooth and a first of the series of perforation teeth. The burst protection gap is adapted for safely receiving the seal line of the bag to prevent severing the seal line when cutting the perforations.

The invention relates to bag (10) comprising a line of weakness (28) for ease of opening, and a reclosing means (32), wherein the bag (10) comprises a front panel (12), back panel (14) and opposing side panels (16, 18), the panels being sealed together to provide a top section (24) and a bottom section (26), and wherein the line of weakness (28) extends around all of the front (12), back (14) and side (16, 18) panels so that the top section (24) is completely removable from the rest of the bag, and wherein the reclosing means (32) is attached to the front (12), back (14) and side (16, 18) panels adjacent to the line of weakness (28).The invention also relates to process for forming bags (10) from a web of film (30), wherein the web of film (30) is transported along one or more machines, the process comprising the steps of:(a) providing a line of weakness (28) across substantially the whole width of the film substantially in the cross-machine direction,(b) affixing reclosing means (32) adjacent to the line of weakness;(c) cutting and sealing the film to form a bag (10) comprising the line of weakness (28) and the reclosing means (32).

A stand-up flexible pouch for packaging a product and a method of forming and filling the pouch is provided. The pouch includes a panel forming a body of the pouch using a flexible material having an inner surface and an outer surface. A rib is integrally formed in the pouch body, and the rib is spaced a predetermined distance from an edge of the pouch body. The ribs provide structural rigidity to the pouch when filled, allowing the pouch to retain the filled shape and stand upright unassisted as the product is removed from the pouch.