A bag including a containment portion having an opening to receive items, a bag seal at an end of the bag opposite the opening, a handle seal at an end of the containment portion opposite the opening, the handle seal located between the bag seal and the opening, and a handle in a handle body formed between the handle seal and the bag seal.

A bag including a containment portion having an opening to receive items, a bag seal at an end of the bag opposite the opening, a handle seal at an end of the containment portion opposite the opening, the handle seal located between the bag seal and the opening, and a handle in a handle body formed between the handle seal and the bag seal.

A device for punching and scoring a medium includes a punch tool and a grooved score guide. The punch tool has a cutter configured to cut an edge of a sheet of the medium. The positioning edge is disposed on the device and configured to guide an edge of the medium and position the medium with respect to the punch tool. The grooved score guide is formed in the device and configured to match a scoring tool to create a score line in the medium. The arrangement between the punch tool and positioning edge is configured to cut a notch in the edge of the medium at a notch point. The grooved score line is disposed in relationship to the punch tool to create the score line in the medium from the notch point across the medium.

Methods of making vents in containers made from flexible materials, including forming vent openings in a first flexible material, forming vent stand-offs on a second flexible material, and combining the flexible materials to form a vent passage for the flexible container.

A storage device (1) for bulk material intended for powdery materials, includes a flexible container (2) for bulk material and an insulating inner liner (3), of which the surface resistivity is greater than 1.01012, without a static electricity conductive layer and without a static electricity dissipation layer, the inner lining (3) covering the inner walls of the container, the inner lining (3) including micro-perforations that pass there through, distributed over the whole surface of the inner lining (3) in such a way that the breakdown voltage of the inner liner (3) is lower than 4 kV and the breakdown voltage of the wall of the container is lower than 6 kV.

An apparatus successively makes plastic bags each of which includes an end surface provided with a protrusion, without specially supplying a web of bottom gusset material. A first web of panel material is folded along a first folded line at a position adjacent to a side edge of the first web, while a second web of panel material is folded along a second folded line at a position adjacent to a corresponding side edge of the second web. A first folded portion is formed in the first web. There exists a distance between the side edge and the first folded line, which is larger than twice a distance between the corresponding side edge and the second folded line by a predetermined distance, after being folded. The end surface is formed by the first folded portion, the protrusion being formed by the predetermined distance.

A method for producing a bag from a tube including transverse lines of perforations delimiting tabs of the future bag, a rear tab of a first bag being opposite a front tab of the second bag following the first. A first step involves separating the first and second bags; a second step involves separating a piece of waste remaining on one of the bags between the two tabs. The first and second steps are carried out between a first pair of separation cylinders and a second pair of cylinders, the piece of waste being clamped between the cylinders of the first pair during the first step in order to be held on the second bag, then clamped and torn off by the second pair during the second step.

The provided are a four side seal packaging bag and a preparation device and method thereof. The preparation device includes at least: a film material conveying mechanism, configured to continuously convey a film material of a packaging bag along a length direction of the film material; a folding mechanism, configured to fold the film material conveyed by the film material conveying mechanism; a cutting mechanism, configured to cut the upper film material; punch-and-cut mechanisms, configured to form square punch-and-cut regions and separate the square punch-and-cut regions from the side accordion film materials; a side accordion forming mechanism, configured to perform a forming operation on the side accordion film materials; and a hot-sealing mechanism, configured to hot-seal the upper film material, the formed side accordion film materials, and the lower film material.

In order to successively make plastic bags each of which includes panel portions, side gusset portions and a zipper portion, a web of panel material 9 is folded and folded back along longitudinal folded lines 14, 15 and 16 and longitudinal folded back lines 17 and 18 into superposed two layers having opposite side edges at each of which a folded portion is formed. The web of panel material 9 is slit along the longitudinal folded line 16 into two divided parts after being folded and folded back. The divided parts are separated and spaced from each other. In addition, the folded portions are split at positions into sprit portions and removed at the positions partially, a body of zipper material being disposed between the sprit portions.

The device serves to separate flexible packaging products (4) that have been cut out from a web (3), more particularly packaging bags, from waste parts (5). To this end, a transport device (1) for transporting the web (3) along a transport path (2) and a workstation (8) for cutting out the packaging products (4) from the web (3) are provided. The transport device (1) is provided with means (14, 23) for selectively retaining and releasing packaging products (4) and waste parts (5). Further workstations (9 to 12) are arranged along the transport path (2), at least one of which is provided with means for selectively picking up packaging products (4) and waste parts (5), respectively, that are located on the transport device (1). It is thus achieved that both the packaging products (4) and the waste parts (5) are always retained until they are laid down in a container intended therefor and are never in an uncontrolled state.