Abstract: The invention relates to a valve bag, in particular a cross-bottom valve bag, comprising a first wall and a second wall, which are joined to each other by means of side edges or side folds and by means of bottoms and which delimit a bag interior, comprising a valve, which is arranged in one of the bottoms and via which the bag interior can be filled with a filling material, and comprising venting openings in the first and/or in the second wall for venting the bag interior. At least one channel is provided on the outside of at least one wall, which channel covers the venting openings and is formed at least by two parallel fastening strips and by a cover strip, the cover strip likewise comprising venting openings, and wherein the shortest path between the parallel fastening strips along the cover strip is longer than the shortest path along the at least one wall or the cover strip, and/or the parallel fastening strips consist of stretchable material.

Abstract: The invention relates to a method for stacking of filled sacks (20) to a pallet-free sack stacking (10) comprising the following: Performing of a first layer (L1) from at least two rows of filled sacks (20), Performing of at least one further layer (L2) from at least two rows of filled sacks (20) on top of the first layer (L1), Covering of the completed sack stacking (10) with at least a stabilized cover (30). The first layer (L1) or the last layer (L9) of the sack stacking with at least two elevating recesses (40) are performed for an elevation with a forklift and between two layers (L8, L9) a mechanically stiffened intermediate space (50) is realized with a floor space (52) which extends between both neighboring layers (L8, L9) and at least a lateral flap (54) which extends along the lateral side (22) of the sacks (20) of one of both neighboring layers (L8, L9) and transverse to the elevating recesses (40).

Abstract: The invention relates to a monitoring method (100) for monitoring a winding process on a winding device (1), comprising: providing (104) a correlation of an irregularity (12) of a web material (11) to a running parameter (13) of the reel (10) for an unwinding process. The invention further relates to a control method (200) for performing an unwinding process on an unwinding device, comprising: obtaining (201) a correlation of an irregularity (12) of a web material (11) to at least one running parameter (13) of a reel (10) from a winding process. Furthermore, the invention relates to a processing method (300) for performing a process of processing a web material (11). Furthermore, the invention relates to a winding device (1) for performing a winding process of a web material (11) to a reel (10), an unwinding device (2) for performing an unwinding process of a web material (11) of a reel (10) and a processing system (3) for processing a web material (11).

Abstract: The invention relates to a monitoring method (100) for monitoring an unwinding process of an unwinding device (2), comprising the following steps: at least partially unwinding (101) a web material (11) from a reel (10), detecting (102) at least one irregularity (12) of the web material (11) and/or the unwinding process. Furthermore, the invention relates to an unwinding device (2) for performing an unwinding process as well as an unwinding system (5) for performing an unwinding process.

Abstract: A pinched sack, which is made at least partially from a plastic material in the form of a tube section, has at least one pinched bottom at one end of the tube section. At least some of the plastic material is stretched, and at least one pinched bottom is provided by a thermally induced bonding process.

Abstract: The invention relates to a valve bag, in particular a cross-bottom valve bag, comprising a first wall and a second wall, which are joined to each other by means of side edges or side folds and by means of bottoms and which delimit a bag interior, comprising a valve, which is arranged in one of the bottoms and via which the bag interior can be filled with a filling material, and comprising venting openings in the first and/or in the second wall for venting the bag interior. At least one channel is provided on the outside of at least one wall, which channel covers the venting openings and is formed at least by two parallel fastening strips and by a cover strip, the cover strip likewise comprising venting openings, and wherein the shortest path between the parallel fastening strips along the cover strip is longer than the shortest path along the at least one wall or the cover strip, and/or the parallel fastening strips consist of stretchable material.

Abstract: The invention relates to a monitoring method (100) for monitoring a winding process on a winding device (1), comprising: providing (104) a correlation of an irregularity (12) of a web material (11) to a running parameter (13) of the reel (10) for an unwinding process. The invention further relates to a control method (200) for performing an unwinding process on an unwinding device, comprising: obtaining (201) a correlation of an irregularity (12) of a web material (11) to at least one running parameter (13) of a reel (10) from a winding process. Furthermore, the invention relates to a processing method (300) for performing a process of processing a web material (11). Furthermore, the invention relates to a winding device (1) for performing a winding process of a web material (11) to a reel (10), an unwinding device (2) for performing an unwinding process of a web material (11) of a reel (10) and a processing system (3) for processing a web material (11).

Abstract: The invention relates to a monitoring method (100) for monitoring an unwinding process of an unwinding device (2), comprising the following steps: at least partially unwinding (101) a web material (11) from a reel (10), detecting (102) at least one irregularity (12) of the web material (11) and/or the unwinding process. Furthermore, the invention relates to an unwinding device (2) for performing an unwinding process as well as an unwinding system (5) for performing an unwinding process.

Abstract: The invention relates to a method for forming at least one bottom on a hose piece (20), which comprises plastic material, wherein at least one end of the hose piece is pulled open along at least one first folding edge (21), a bottom rectangle (22) and triangular pockets (23) thus being formed; wherein side tabs (25, 26) of the bottom rectangle are folded back along two folding edges (24) spaced apart from the first folding edge in order to close the bottom, wherein the two side tabs then contact each other, and wherein a bottom cover sheet (31) is applied to the bottom and is connected to the side tabs and at least one triangular pocket by application of heat or by means of glue. The surfaces of the side tabs that come into contact and the triangular pockets are connected to each other at least in the region of the two folding edges, a connection (32) thus being formed.

Abstract: An apparatus for producing bags from tubular material having fabric made of stretched plastic strips has at least one tube-forming device or a tube-unwinding device, by which tubular material for producing bags can be produced from web-shaped material and in which the tubular material, can be conveyed in a transport direction (x?), at least one tube-separating device, by which tube pieces can be separated from the tubular material, a bottom-forming device, by which bottoms can be molded onto at least one end of a tube piece, and at least one transport device for transporting the tube pieces within the bottom-forming device in a transport direction (x) extending transversely to their direction of extension (y) The transport direction (x?) of the tubular material in the tube-forming device or the tube-unwinding device and the transport direction (x) of the tube pieces in the transport device are parallel to each other.

Abstract: A side fold sack of polyolefin material that includes a tubular segment having side folds between front and rear walls of the tube. The bottom of the sack exhibits at least one fold of the tubular segment made at 180° about an axis which is generally transverse to the side folds. At least part of the folded area is covered with a label that provides support to the bottom of the sack.

Abstract: The invention relates to a method for the producing bags (10), comprising the following steps: a tubular material (100) comprising a coating material (110) and at least one reinforcement material (120) for mechanically reinforcing the coating material (110) is provided and a base section (20) of a bag (10) is formed. The invention is characterized in that a folding section (102) of the tubular material (100) is folded about at least 180° on a connecting section (104) of the tubular material (100) for forming the base section (20), and the folded folding section (102) is connected to the connecting section (104).

Abstract: A method for the production of sacks from tubular pieces which include plastic material includes at least at one end area, laying a bottom rectangle around a fold line to form triangular pockets, with the bottom rectangle including flaps, folding back parts of the flaps of the bottom rectangle, and applying and connecting a bottom cover sheet at least to areas of the flaps of the bottom rectangle and/or to areas of the triangular pockets. The bottom rectangle includes at least in part an air-permeable material.

Abstract: The invention relates to a method for stacking of filled sacks (20) to a pallet-free sack stacking (10) comprising the following: Performing of a first layer (L1) from at least two rows of filled sacks (20), Performing of at least one further layer (L2) from at least two rows of filled sacks (20) on top of the first layer (L1), Covering of the completed sack stacking (10) with at least a stabilized cover (30). The first layer (L1) or the last layer (L9) of the sack stacking with at least two elevating recesses (40) are performed for an elevation with a forklift and between two layers (L8, L9) a mechanically stiffened intermediate space (50) is realized with a floor space (52) which extends between both neighboring layers (L8, L9) and at least a lateral flap (54) which extends along the lateral side (22) of the sacks (20) of one of both neighboring layers (L8, L9) and transverse to the elevating recesses (40).

Abstract: A process that is faster than conventional processes for manufacturing a film tube from a polymer and/or metal film material includes moving the film tube in relation to the joining tools during the joining process. Before the joining process of the film tube, the metal film material exists in the form of at least one film web. The edges of this film web are joined to one another in a joining process forming at least one longitudinal joint seam. During the joining process the film tube is moved in relation to the joining tools.

Abstract: An apparatus for producing bags made of tube pieces having fabric made of stretched plastic strips and with two material webs lying on top of each other includes a transport device, via which the tube pieces are conveyed in a horizontal position in a transport direction (x) extending transversely to the direction of extension (z) of the tube pieces, a bottom-opening station, via which open bottom squares are produced on at least one end of a tube piece, a closing station, via which the bottoms opened at the bottom-opening station are folded up, and a bottom-patch station, via which a bottom patch is applied for closing the bag bottom. At least one processing station on the operating side (BS) is disposed such that it is at least partly offset to a similar processing station on the drive side (AS).

Abstract: The invention concerns a method for the production of sacks from tubular pieces (1) which include plastic material in which at least at one end area a bottom rectangle (2) is laid around a fold line (3) to form triangular pockets (6, 7) (6, 7), where said bottom rectangle comprises flaps (4, 5) (4, 5), parts of the flaps (4, 5) (4, 5) of the bottom rectangle (2) are folded back, and a bottom cover sheet (21) is applied at least to areas of the flaps (4, 5) of the bottom rectangle (2) and/or to areas (6, 7) of the triangular pockets and connected to them. According to the invention a bottom rectangle (21) is used which includes at least in part air-permeable material.

Abstract: The invention describes a pinched sack (18), which (18) is made at least partially from a plastic material (3), showing a sack body, essentially comprising a tube section (24), and which (18) shows at least one pinched bottom (55) at one end of the tube section (24). At least some of the plastic material (3) is stretched and at least one pinched bottom (55) is fixated by a thermally induced bonding process.

Abstract: The invention describes an apparatus (1) for producing bags from tubular material (2) comprising fabric made of stretched plastic strips, which apparatus comprises: at least one tube-forming device (13) or a tube-unwinding device (3), by means of which tubular material (2) for producing bags (12) can be produced from web-shaped material (14) and in which the tubular material (2) can be conveyed in a transport direction (x?), and at least one tube-separating device (6), by means of which (6) tube pieces (16) can be separated from the tubular material (2), and a bottom-forming device (8, 9, 10, 11), by means of which (8, 9, 10, 11) bottoms can be molded onto at least one end of a tube piece (16), at least one transport device for transporting the tube pieces (16) within the bottom-forming device (8, 9, 10, 11) in a transport direction (x) extending transversely to their direction of extension (y).

Abstract: The invention describes an apparatus (1) for producing bags made of tube pieces (2), which (2) comprise fabric made of stretched plastic strips and comprise two material webs lying on top of each other. Provision is made at least for the following devices: a transport device, by means of which the tube pieces (2) can be conveyed in a horizontal position in a transport direction (x) extending transversely to the direction of extension (z) of the tube pieces, a bottom-opening station (3), by means of which (3) open bottom squares (5) can be produced on at least one end (5) of a tube piece (2), a closing station (7), by means of which (7) the bottoms (4) opened at the bottom-opening station (3) can be folded up, a bottom-patch station (8), by means of which (8) a bottom patch can be applied for closing the bag bottom.