Abstract: The invention relates to a water bar comprising nozzle parts for a suction chamber to apply jets to fabrics, knitted fabric webs, or nonwoven fabrics copoosed of staple fibers, endless filaments, or cellulose fibers, also in several layers, or mixtures thereof, and a suction area which is located on the bottom side of the suction chamber and is used for sucking off spraying water. The aim of the invention is to largely prevent spraying water or spraying mist in the region of the water jet that is discharged from the water jet beam. Said aim is achieved by assigning an air supplying device to the water bar and/or the suction chamber, said air supplying device being provided with at least one outlet which is located in the region of the water bar and extends to the region of the nozzle ports of the water bar.

Abstract: The invention relates to an apparatus for producing textiles, nonwoven substances, spun-bonded fabrics or paper materials (5) with the aid of at least one screen drum (1) having openings (4) for transporting away the fluid (6) which is output from a water bar (7) and having numerous outwardly directed elevations (3) which are situated on the outside of the screen drum (1) for the perforation of the nonwoven (5). The invention is based on the object of providing an apparatus which makes it possible, during the water conversion and at the same time as the perforation, also to make patterns in the nonwoven without influencing the strengthening substantially in the process. The object has been achieved in that one or a plurality of regions (8) on the outer side of the screen drum (1) does/do not have any elevations (3) but only openings (4).

Abstract: A spunbond web is made by extruding a multiplicity of hot thermoplastic filaments, passing the filaments along an upstream stretch of a path, cooling and stretching the filaments as they move along the upstream stretch of the path, and depositing the cooled and stretched filaments at a downstream end of the upstream stretch on a foraminous belt such that the filaments form a mat thereon. The belt is continuously displaced the belt so as to move the mat downstream along a downstream leg of the path. The mat on the belt, then consolidated with a high-pressure water-jet treatment, and further processed.

Abstract: The invention relates to a water bar comprising nozzle parts for a suction chamber to apply jets to fabrics, knitted fabric webs, or nonwoven fabrics composed of staple fibers, endless filaments, or cellulose fibers, also in several layers, or mixtures thereof, and a suction area which is located on the bottom side of the suction chamber and is used for sucking off spraying water. The aim of the invention is to largely prevent spraying water or spraying mist in the region of the water jet that is discharged from the water jet beam. Said aim is achieved by assigning an air supplying device to the water bar and/or the suction chamber, said air supplying device being provided with at least one outlet which is located in the region of the water bar and extends to the region of the nozzle ports of the water bar.

Abstract: A suction apparatus for a water beam that directs a liquid jet at a passing a fabric web workpiece has a suction chamber extending transversely adjacent the jet and having a perforated lower wall sloping downward away from an upper region close to the water beam and a lower region remote therefrom. Air is withdrawn from inside the chamber to aspirate spray from adjacent the jet through the perforated lower wall.

Abstract: The invention relates to a suction device for liquids in hydroentangling machines, in which more than one water bar, which generate jets of liquid, are allocated to the exterior of the suction device. The suction device consists of a suction tube comprising one or more axial suction openings for each water bar, said openings being located along the working length of the tube. The liquid is sucked from the allocated water bar through said openings as a result of the negative pressure that is created in the tube. According to the invention, the suction openings that extend over the entire working width are configured to be sealed in relation to each respectively allocated water bar.

Abstract: The invention relates to a method for the production of a one-layered or multilayered nonwoven fabric, a machine for the production of such a nonwoven fabric, and a correspondingly produced nonwoven fabric. The task of improving such a method and a production apparatus underlies the invention to the effect that projecting loops and fibrils no longer stick out, and thus individual filaments can be prevented from pulling out during the use of the nonwoven fabric. According to the invention, this is achieved in that the nonwoven fabric is smoothed after water needling by the use of a calendar. The machine according to the invention is characterized by the fact that the machine has a spun bonded fabric, at least one subsequent needling device, a dryer connected thereto, and thereafter at least one calendar.

Abstract: A device is known in which the bulky felt arriving on the top side of an endless belt for water felting is compacted between a felting drum and the belt and at the same time it is wetted by a first water curtain from a nozzle beam, whose water jets first pass through the endless belt and then the fiber web and finally the felting drum. Now, according to the invention, the unconsolidated felt is held against the bottom of an endless belt by means of induced suction and transported, and it is brought up tangentially to a needle felting drum, arranged beneath the endless belt. In this way, the handover of the fiber web from the endless belt to the needle felting drum is accomplished under the influence of gravity.

Abstract: In an apparatus for producing a fiber web, for example of cotton, synthetic fibers or the like, a web-former and/or a web-bonder is/are arranged downstream of a flock feeder device and the fiber material is conveyable. In order to make it possible by simple means to produce a uniform fiber web, a drafting device is arranged between the flock feeder device, on the one hand, and the web-former and/or the web-bonder, on the other hand, for drafting of the flock material.

Abstract: Nozzle beam on device for generating liquid jets for jet interweaving of the fibers of a fiber path, comprising an upper part that extends over the operational width of the fiber path, and a lower part that is attached to it in liquid-sealed fashion, wherein a) a pressure chamber is arrayed in the upper part over its length, to which liquid under pressure is fed, and b) a pressure-distributing chamber is provided parallel to chamber (a), which is connected with chamber (a) via liquid flow-through boreholes situated in an intermediate partition, and c) on the lower part, a nozzle strip having boreholes for the nozzle chamber is supported in liquid-sealed fashion, and d) (b) on the area that lies opposite the liquid flow-through boreholds runs out into a slot that terminates at the boreholes of the nozzle strip, and e) in (b) between the liquid flow-through boreholes and the slot, a baffle is situated over the length of the slot, which over its length and over its cross section is situated in (a) so as to al

Abstract: A water needling device has a housing having an intake side and defining a generally horizontal transport direction extending downstream from the intake side. A support in the housing has an upwardly directed foraminous support face. Upstream and downstream reversible winders in the housing spaced apart in the direction flank a plurality of rollers. A textile web passesin the housing along a path starting at the intake, extending over the support face and the rollers, and then downstream out of the housing. A nozzle beam is directed downward at the surface to consolidate the web as it passes over the foraminous face. A threading-in conveyor strand secured to the winders and having a gripper attachable to the textile web extends over at least some of the rollers. This strand is attached at its ends to reversible winders.

Abstract: A device is known in which the bulky felt arriving on the top side of an endless belt for water felting is compacted between a felting drum and the belt and at the same time it is wetted by a first water curtain from a nozzle beam, whose water jets first pass through the endless belt and then the fiber web and finally the felting drum. Now, according to the invention, the unconsolidated felt is held against the bottom of an endless belt by means of induced suction and transported, and it is brought up tangentially to a needle felting drum, arranged beneath the endless belt. In this way, the handover of the fiber web from the endless belt to the needle felting drum is accomplished under the influence of gravity.

Abstract: The invention relates to a device for decorating and fixing a non-woven material (15) in the form of a web of endless fabric, said device comprising a screening drum (6) and a decoration shell (7) which surrounds the screening drum (6) from outside. The fibres (15) of the non-woven material, located on the decoration shell (7), are needled and fixed according to the decoration formed by the holes of the decoration shell (7) by means of energy-rich water jets (14) or air flows. The invention is characterised in that the decoration shell (7) and the screening drum (6) are interconnected by mechanical means (8, 9, 10) that can be easily detached. In a preferred embodiment, the decoration shell (7) comprises a counter-toothed ring (9) and the screening drum (6) comprises a toothed ring (8), said rings positively engaging in each other in such a way that a rotation of the decoration shell (7) and the screening drum (6) in relation to each other is prevented.

Abstract: The nozzle beam is arranged on a device for generation of liquid streams for the treatment of fibres of a material web running along the nozzle beam. The nozzle beam comprises an upper piece (4), running across the working width of the web and a lower piece (5), which runs out into a liquid outlet slot (10). According to the invention, a nozzle strip (14) is arranged below the liquid outlet slot (10) and an easily detachable so-called masking strip (18) is mounted directly above the above in a liquid-tight manner, when viewed in the flow direction of the water jet. A part of the nozzle outlet opening on the nozzle strip is covered by the masking strip (18) and a part is left free, whereby liquid jets emerge from the part left free and form a continuous liquid curtain. According to the invention, a nozzle strip (14) with a maximum stream width is fitted to the nozzle beam.

Abstract: A nozzle beam formed with an annular groove is fitted with a seal ring by an apparatus having an elongated support bar, a pair of holders fixed on the bar spaced apart sufficiently that the seal ring can be stretched between them, and a release element for pushing the seal ring off one of the holders.

Abstract: A drum for forming relief patterns on a surface of a textile web has a tubular jacket rotatable about an axis and having a substantially cylindrical outer surface centered on the axis and formed with an array of raised portions separated by lands and with a multiplicity of radially throughgoing holes. The holes are elongated and extend at angles between 20° and 170° to midplanes extending perpendicular to the axis, the web engaging the drum. Liquid jets are directed radially inward at the web where it engages the drum for impressing the raised portions into a face of the web. Liquid is aspirated inward through the holes from the web where it engages the drum.

Abstract: Finite goods are continuously packed between two non-wovens by means of hydrodynamic needling and are fully sealed. When used, said wovens should not nap and should not become linked to the goods during packing. When packed, the volume of the goods should, wherever possible, remain unchanged. In order to achieve said aims, the covering non-wovens are prefixed by means of hydrodynamic needling. Particularly good results are achieved if perforated non-wovens are used to cover the finite products, the number of said perforations being approximately 5-20 perforations per inch, and when said non-wovens are joined to each other by means of water needling.

Abstract: A device for applying a liquid as a thin continuous film to a passing workpiece strip has a runoff face and an intake face both extending a full width of the workpiece strip and meeting at an upwardly directed spillover weir. A diverter has a face juxtaposed with the intake face and forming therewith a storage compartment and a lip having a face juxtaposed with the runoff face at the spillover weir. Liquid is fed under pressure to the storage compartment so that the liquid rides up the intake face, over the spillover weir, and down the runoff face to a lower edge thereof whence it drops onto the passing workpiece strip. The lip face blocks any liquid that overshoots the spillover weir and deflects it back onto the runoff face.

Abstract: A pile carpet after tufting or the like is usually provided on the back with a latex precoat for stabilization and then provided with a foam back or an additional jute fabric. This environmentally hazardous method and the problem of recycling the foam back as well as the latex layer can be avoided If a nonwoven is applied instead to the tufted back of the carpet by water needling. This is possible with water needling in that the solidification of the pile fibers in or on the primary carrier takes place but no nonwoven fibers reach the visible side of the carpet. The back layer to be needled can also be made thicker and mote voluminous. Instead of a carpet, any other pile goods can also be stabilized in this fashion.

Abstract: The novel product consists of hydrodynamically bonded non-woven layers of which at least four layers are stacked and are than joined to one another by only using hard water jets.