DEVICE AND METHOD FOR COMBINATION OR STRENGTHENS A FIBER PANEL TO A FLEECE

Description

[0001] The invention relates to a system and a method for consolidating a nonwoven fabric comprising at least one layer of unconsolidated nonwoven fabric and / or a layer of loose fibers, according to the preamble of the independent claims.

[0002] According to the state of the art, loose fibers are laid on a nonwoven fabric and needled together by water jets on two drums arranged one above the other. A known system features a horizontal conveyor belt for the loose fibers and nonwoven fabric leading to a first needling drum. This needling drum is equipped with two water bars that consolidate the underside of the nonwoven / fiber combination. A subsequent deflection roller ensures that the nonwoven / fiber combination is also consolidated from the underside by water bars on the second needling drum, which is arranged vertically above the first. Following the second needling drum, five deflection rollers are arranged to deflect the consolidated nonwoven fabric back onto a horizontal belt for further processing. The five deflection rollers after the second drum result in increased distortion.Furthermore, only three water bars can be accommodated on the lower drum due to the horizontal orientation of the belt. However, seven water bars on drums are required for higher speeds. This further increases the complexity, as a third drum must be added. Additional disadvantages include increased distortion, a more complex design at higher speeds, a more complex threading process due to the numerous deflections, and increased space requirements in terms of overall system length.

[0003] In DE 102005033070 A1, a fiber web on a circulating belt is subjected to a compaction roller which features water jet compaction in its interior. This is intended to influence the MD / CD ratio.

[0004] DE 102015112955 A1 discloses the transfer of a wet-laid fibrous web from a first circulating belt with the top side to another circulating belt while avoiding distortion between the two belts.

[0005] In WO 2016 / 173685, a fiber web is consolidated and structured between two circulating belts, one of which has microperforations. Following the circulating belts, the consolidated and structured fiber web is transferred onto two drums.

[0006] DE 102021107902 A1 discloses a plant in which a layer of wet-laid fibers is transferred with the top side facing down onto a carding nonwoven, and both layers are subsequently bonded together. Two drums are arranged behind a circulating belt, which bond the nonwoven first from the underside, then from the top side.

[0007] The object of the present invention is to provide a method and a system for bonding a web of loose fibers to a nonwoven fabric, with which a compact and inexpensive system can be produced, and the resulting nonwoven fabric exhibits high strength. The system should also exhibit high productivity.

[0008] The invention is solved by a system for consolidating a nonwoven fabric, in which the consolidated nonwoven fabric comprises at least one layer of unconsolidated nonwoven fabric and / or a layer of loose fibers. The system has at least one transport table configured to transport the unconsolidated nonwoven fabric and / or the layer of loose fibers. The transport table has a circumferential belt with a first horizontal section, followed in the material transport direction by a second, sloping section. Following the transport table in the material transport direction are a first drum with at least two water bars, and a second drum with at least two water bars arranged above the first drum.The invention is characterized in that the first drum for receiving the nonwoven fabric or the layer of loose fibers interacts with the sloping section of the transport table in such a way that the top of the unconsolidated nonwoven fabric or the top of the layer of loose fibers rests against the surface of the drum.

[0009] The invention is also solved by a method for consolidating a nonwoven fabric comprising at least one layer of unconsolidated nonwoven fabric and / or a layer of loose fibers, wherein the unconsolidated nonwoven fabric and / or the layer of loose fibers is transported to a first drum by means of a transport table. The top side of the unconsolidated nonwoven fabric or the top side of the layer of loose fibers is transferred from an inclined section of the transport table to the surface of the first drum, wherein consolidation on the first drum is effected by at least two water bars from the underside of the nonwoven fabric or the layer of loose fibers, and further consolidation takes place on a second drum with water bars arranged above the first drum.

[0010] The underside is defined as the side of the unbonded nonwoven fabric or layer of loose fibers that rests on the transport table. The top side is therefore the side of the unbonded nonwoven fabric or layer of loose fibers facing away from the conveyor belt of the transport table.

[0011] Advantageous further developments of the invention are defined by the dependent claims of the plant and apparatus claim.

[0012] In all embodiments, the sloping section of the transport table allows the first drum to be positioned with its pivot point below the plane of the horizontal section. This creates space for additional water bars, which can be arranged below the axis of rotation of the first drum. Consequently, the necessary space is also available to arrange the water bars on the second drum, in this illustration, to the right of the common central axis of the drums, i.e., to the side of the central axis in the direction of material flow. This offers the advantage that a higher degree of consolidation of the fiber / nonwoven composition is achieved even on the first drum, allowing the system to be operated at a higher speed, for example, 300 m / min.A further advantage lies in the modified arrangement of the water jets on the second drum, positioned laterally to the central axis in the material flow direction. This allows the consolidated nonwoven to be transferred to a subsequent processing station with a maximum of two deflection rollers. The receiving point of this subsequent station is located, for example, below the last contact point of the consolidation station, via the circulating belt. This significantly reduces uncontrolled distortion of the already consolidated nonwoven. The water jets act on the already smooth underside of the nonwoven to be consolidated, and the surface of the drums smooths the irregular upper side, which can occur with a wet or dry fiber headbox. In a fiber / nonwoven composition consisting of an unconsolidated nonwoven and a fiber backing, the loose fibers are pressed into the unconsolidated nonwoven.This process reduces the leaching of short fibers and simultaneously increases the strength of this two-layer bonded nonwoven. Waterjet bonding on a belt requires more complex equipment to achieve the same result, and the system becomes longer.

[0013] A further improvement can be achieved by designing the deflection and guide rollers as driven rollers, which significantly reduces distortion of the consolidated nonwoven fabric and ensures that at least the surface structure remains unchanged. The respective peripheral speed of the rollers then always corresponds to the transport speed of the consolidated nonwoven fabric. The drums are also designed as driven drums.

[0014] By positioning the drums further apart due to the modified arrangement of the water bars, both drums can be equipped with cleaning devices, thus increasing the system's service life. The redesigned arrangement of the water bars on the drums, along with the optimized placement and reduced number of deflection rollers, leads to significant improvements. The first drum was placed on an incline on the feed conveyor to create more space for the water bars.

[0015] To optimize material handling, the arrangement of the components (water bars, drums, and deflection rollers) was optimized so that the web can be transferred to, for example, a suction belt or another workstation with only two deflection rollers after the second drum. This results in less distortion than the version equipped with more deflection rollers. Furthermore, by positioning the first drum on an inclined feed belt, it is possible to add a fourth water bar to this drum, so that with seven water bars on two drums, transport speeds of up to 300 m / min can be achieved for the nonwoven fabric.

[0016] The system enables the bonding of a nonwoven fabric comprising at least one layer of unbonded nonwoven material and a layer of loose fibers. The system also enables the bonding of a nonwoven fabric consisting of only one layer of unbonded nonwoven material, such as a carded nonwoven, or only a layer of loose fibers. Alternatively, a three-layer nonwoven fabric can be produced by incorporating an unwinding station that feeds a bonded nonwoven fabric into the system. In this case, the layer of loose fibers is preferably compartmentalized between the two layers of unbonded and bonded nonwoven fabric.

[0017] Further measures improving the invention are described below in more detail by means of several exemplary embodiments of the invention with reference to the figures.

[0018] It shows: Figure 1 : A first layout of the system according to the invention with five water bars Figure 2: A second layout of the system according to the invention with seven water bars Figure 3 : The second layout with an alternative operating mode of the fiber optic cable.

[0019] Figure 1 The system shows 100 with a speed of the connected nonwoven fabric up to 250 m / min with optimized material guidance after the second drum and a total of five water bars.

[0020] In contrast to the prior art, the nonwoven fabric is laid on the web of loose fibers and then needle-punched on drums 18 and 20 with the underside facing down. This presses the loose fibers into the nonwoven fabric, resulting in higher strength and reducing fiber loss. The bonding of the loose fibers to the nonwoven fabric occurs only on drums 18 and 20, not on a circulating belt. This also allows for higher bond strength between the loose fibers and the nonwoven fabric, while simultaneously enabling a shorter machine design.

[0021] Increasing the distance between the drums 18, 20 allows for the installation of cleaning components, such as suction devices and / or cleaning brushes, between the drums 18, 20, thus increasing the service life of the system 100 between cleaning intervals.

[0022] The in the Figures 1 to 3 The carded nonwoven fabric shown can be formed as an unconsolidated nonwoven from a carding machine 15, or as a consolidated nonwoven from a carding machine 15 with downstream consolidation not shown or from an unwinding station into the system 100.

[0023] An inclined screen former 1 is arranged above a circulating screen belt 10. The inclined screen former 1 exemplifies a device for depositing loose fibers, which can also be configured as a meltblown line, secondary stock headbox, etc. The screen belt 10, which can be designed as an endless belt, runs around various rollers 12 and has an inclined section 11 that rises at an angle in the direction of travel of the screen belt. In the region of the inclined section 11, the inclined screen former 1 is arranged above the screen belt 10, and the screen belt 10 rests on its surface 2. Below the surface 2, at least one suction zone 3 is arranged, which is pressurized by means of pumps (not shown). The inclined screen former 1 can have several suction zones 3, which are subjected to different pressures or vacuums. The vacuum sources can preferably be designed as controllable vacuum pumps.

[0024] One or more superimposed fiber suspensions can be fed onto the screen belt 10 via a headbox 8. Each fiber suspension contains, in addition to water, a specific amount of solids, which in turn consists of fibers and other additives. When multiple fiber suspensions are present, lamellae (not shown) are arranged between them, allowing the layer thickness of the fiber suspensions to be varied individually or collectively.

[0025] The fibers used here can consist, at least in part, of short synthetic fibers with a fiber length of 8 to 12 mm, such as polyester, polyamide, polypropylene, or polyolefin. Fiber blends of synthetic and natural fibers are also possible. The outer layers can also consist of 100% pulp. The middle fiber suspension can consist of natural fibers that have a high water retention capacity and are preferably biodegradable.

[0026] Of course, it is also possible to apply only a fiber suspension, so that after the water is removed, a single layer of fibers forms. This fiber suspension can consist of a mixture of fibers with a high pulp content and a smaller content of short synthetic fibers with a fiber length of 8 to 12 mm, such as polyester, polyamide, polyolefin, polypropylene, viscose, or lyocell. The basis weight of the dry web of fiber material 9 can preferably be 10 to 60 g / m² (dry weight).

[0027] The screen belt 10, which is permeable to liquids and gases, transports the at least one fiber suspension over the inclined section 11 and across the inclined screen former 1. Due to gravity and the negative pressure acting on the at least one fiber suspension, the fiber suspension is dewatered, resulting in the formation of a web of fibrous material 9 with at least one layer of fibers. Below the suction zone 3, the screen water 6 is collected in a screen box 5 and drawn off.

[0028] The web of fibrous material 9 is transported in the direction of the arrow, first over a horizontal section and then over an inclined section on the belt 10. After the inclined section, the web of fibrous material 9 is transferred with its underside onto another circulating belt 13, which runs as an endless belt around at least two rollers 14.

[0029] In the first embodiment, a carding unit 15 is arranged in the system 100 in the transport direction of the web of fibrous material 9. The carding unit 15 is positioned spatially above the belt 13, so that the web of fibrous material 9 can be guided to a water jet compaction process with at least one water beam independently of the carding unit 15. In other words, the belt 13 is guided below the stationary carding unit 15 and is designed to guide the web of fibrous material 9 directly from the device for depositing the loose fibers – here, the inclined screen former – to the water jet compaction process. The web of fibrous material 9 is compacted in this process.

[0030] The carding unit 15 can feed an unbonded, carded web of fibers, a carded nonwoven 15a, into the system 100. This occurs before water jet bonding, so that the web of fiber material 9 is bonded to the carded nonwoven 15a by means of the water jets. The carded nonwoven 15a can consist, for example, of polyester, viscose, a cotton blend, or a mixture of synthetic and / or natural fibers. Preferably, the basis weight of the carded nonwoven 15a is between 15 and 60 g / m². Instead of the carding unit 15, an unwinding station can also apply a bonded nonwoven to the layer of fiber material 9. However, this has the disadvantage for further processing that the bond between the bonded nonwoven and the fiber material 9 is not as uniform and intimate as with an unbonded nonwoven 15a.In this variant, the pressure of the water beams in the subsequent solidification station would have to be significantly increased, which increases energy costs and also the leaching of the wetted fibers.

[0031] The following describes the fiber / nonwoven composition 16, whereby it is clear that the system is variable and can also consolidate and process only the fiber material 9 or only the unconsolidated carded nonwoven 15a. The fiber / nonwoven composition 16 is transferred from the circulating belt 13 to a transport table 17 with a circulating belt 17a, which initially has a horizontal section 17b in the material flow direction, followed by an inclined section 17c. A first drum 18 is assigned to the inclined section 17c, which receives the fiber / nonwoven composition 16 with the top side facing up, i.e., with the unconsolidated carded nonwoven 15a. Initial compaction takes place between the inclined section 17c of the belt 17a and the drum 18, thereby simultaneously transferring the fiber / nonwoven composition 16 onto the drum 18. In this embodiment, the first drum 18 has two water bars 18.1, 18.2 assigned to the first drum 18, whose water jets strike the underside of the fiber / nonwoven composition 16. This presses the fiber material 9 into the unbonded carded nonwoven 15a, bonding and bonding them together. A second drum 20 is arranged vertically above the first drum 18, to which, in this embodiment, three water bars 20.1, 20.2, 20.3 are assigned. Both drums 18, 20 are designed as suction drums, onto which a structural shell can optionally be mounted. The distances between the drums 18, 20 are larger than in the prior art to allow for the optional arrangement of one or two cleaning devices 18R, 20R between the drums 18, 20. Each cleaning device 18R, 20R can, for example, be designed as a scraper with suction or as a cleaning roller with brushes. A guide roller 19 is provided between the drums 18, 20, which guides the system orTo ensure that the fiber / nonwoven composition 16 is guided on the drums 18 and 20 at a large wrap angle before it enters the working area of ​​the first water bar 20.1 of the second drum 20 from the last water bar 18.2 of the first drum 18. The fiber / nonwoven composition 16 also rests on the second drum 20 with its upper side facing the carding nonwoven 15a, so that the fiber 9 is pressed into the carding nonwoven 15a, bonded, and consolidated.

[0032] A deflection roller 21, positioned above the second drum 20, guides the consolidated nonwoven fabric 23 with a large wrap angle on the second drum 20 and deflects the consolidated nonwoven fabric 23 by almost 180°, allowing it to be transported to a subsequent processing station, which in this example is designed as a suction device 24. A second deflection roller 22 is arranged next to the consolidation station in the material flow direction. This roller guides the consolidated nonwoven fabric 23 onto another horizontal belt 24a of the suction device 24. The second deflection roller 22 can be omitted by using a suction device 24 positioned at a corresponding height, although this would be more complex and expensive in design. The suction device 24 uses an integrated suction system 24b to remove water from the consolidated nonwoven fabric 23. The extraction port 24b is located below a circumferential perforated band 24a.In the direction of material flow, further processing stations such as a dryer or a winding station can be added.

[0033] Figure 1 Figure 1 shows the arrangement of the cleaning devices 18R, 20R, which are arranged opposite the water bars 18.1, 18.2, 20.1 - 20.3 on the circumference of the first and second drums 18, 20.

[0034] The nonwoven fabric 23 bonded in this system can be formed as a fiber / nonwoven composition 16, in which an unbonded carded nonwoven fabric 15a is laid on a dry or wet-laid fiber stock 9 and bonded together. Alternatively, only the unbonded carded nonwoven fabric 15a can be bonded.

[0035] Figure 2 is identical to Figure 1with the slight difference that two additional water bars 18.3, 18.4 are assigned to the drum 18. These are arranged below the axis of rotation of the drum 18, with the first water bar 18.4 being located under the belt 17a of the sloping section 17c of the transport table 17. In this position, the first water bar 18.4 is directed towards the axis of rotation of the first drum 18, so that the fiber / nonwoven composition 16 is not only compacted between the belt 17a and the drum 18, but is also pressed against the drum 18 and thus detaches from the belt 17a. The water bar 18.4, located within the belt 17a, is preferably operated at a pressure range of 10–50 bar. The consolidation of the fiber / nonwoven composition 16 occurs significantly faster, so that the transport speed of the nonwoven in the system can be increased to up to 300 m / min. All other water bars 18.1, 18.2, 18.3, 20.1, 20.2, 20.3 are preferably operated at a pressure of 40-150 bar. In this embodiment, each of the two drums 18, 20 is also assigned a cleaning device 18R, 20R, which can be installed by increasing the drum spacing from the previous 30 mm to at least 700 mm.

[0036] An alternative driving style shows Figure 3For the consolidation of a nonwoven fabric by using an additional guide roller 25. This roller can be positioned between the drums 18 and 20, opposite to the material flow direction. This allows for consolidation of the nonwoven fabric on both sides, with the water bars 18.1–18.4 acting on the underside of the nonwoven fabric on the first drum 18, as before. The guide roller 25 directs the nonwoven fabric against the material flow direction onto the upper drum 20, so that the top side of the nonwoven fabric 23 is now consolidated. The nonwoven fabric 23 is then conveyed by the deflection of the guide roller 19 to the suction device 24. This variant of web guiding is advantageous, for example, for an unconsolidated carded nonwoven fabric 15a that is to be consolidated without the layer of loose fibers. However, this operating method can also be advantageous if the fiber / nonwoven composition 16 is to be structured on both sides. For this purpose, the drums 18, 20 are needed if necessary.to be equipped with a structural shell. Alternatively, the unbonded carded nonwoven 15a or the layer of fiber 9 can be bonded alone in the system. As a further alternative, an unwinding station 26 can be positioned upstream of the circulating belt 13, which introduces a bonded nonwoven 26a into the system onto the first belt 13 under the fiber 9 by means of a deflecting roller 27. This allows for the processing of a three-layer nonwoven with the fiber 9 in the middle layer or a two-layer nonwoven with the fiber 9 in the top layer. This can then be processed in the operating mode of the . Figure 1 and 2 processed with one-sided consolidation, or alternatively in the driving style of the Figure 3 , i.e., processed with consolidation on both sides.

[0037] In all embodiments, the sloping section 17c of the transport table 17 allows for a recessed arrangement of the first drum 18. This creates space for further water bars 18.3, 18.4 ( Figure 2 and 3), which are arranged below the axis of rotation of the first drum 18. Consequently, the necessary clearance is also available to arrange the water bars 20.1 - 20.3 on the second drum 20 to the right of the common central axis Ma of drums 18, 20 in this representation, i.e., laterally to the central axis Ma in the direction of material flow. This has the advantage that a higher degree of consolidation of the fiber / nonwoven composition 16 is already achieved on the first drum 18, so that the system 100 can be operated at a higher speed, for example at 300 m / min. Advantageously, the pivot point of the first drum can be located below the plane of the horizontal section 17b of the transport table. This allows the fourth water bar 18.4. The water bars are arranged within the belt 17a in such a way that compaction occurs between the belt 17a at the sloping section 17c and the drum 18, thereby simultaneously improving the transfer from the belt 17a to the first drum 18. A further advantage lies in the modified arrangement of the water bars 20.1–20.3 on the second drum 20, laterally to the central axis Ma in the material flow direction. This allows the consolidated nonwoven fabric 23 to be transferred to a subsequent processing station with only two deflection rollers 21, 22. The receiving point of this subsequent processing station is located, for example, by means of a circulating belt 24a below the last contact point of the consolidation station. This significantly reduces uncontrolled distortion of the already consolidated nonwoven fabric 23. With water jet consolidation on a belt, the technical effort required to achieve the same result is greater, and the overall length of the system increases.In a fiber / nonwoven composition, the loose fibers are pressed into the unbonded nonwoven, thereby reducing the release of loose fibers. Advantageously, the deflection rollers 21, 22 and guide rollers 19, 25 can be designed as driven rollers, thus reducing distortion onto the bonded nonwoven 23 and ensuring that at least the surface structure remains unchanged.

[0038] The respective circumferential speed of the rollers always corresponds to the transport speed of the consolidated nonwoven fabric 23. The drums 18, 20 are also designed as driven drums.

[0039] Instead of the in Figure 1 Any other nonwovens machine that lays loose fibers into a fibrous fabric on a circulating belt can be used with the slant screen former described in detail, for example a meltblown machine, a secondary headbox, a circular screen former or an airlaid machine. Reference sign

[0040] 100 plant 1 Inclined screen former 2 Lining 3 Suction zone 5 Screen box 6 Screen water 8 Headbox 9 Fiber 10 Screen belt 11 Inclined section 12 Roller 13 Belt 14 Roller 15 Carding 15a Carding web 16 Fiber / webbed composition 17 Conveyor table 17a Belt 17b Horizontal section 17c Inclined section 18 First drum 18.1 - 18.4 Water bar 18R Cleaning device 19 Guide roller 20 Second drum 20.1 - 20.3 Water bar 20R Cleaning device 21 Deflection roller 22 Deflection roller 23 Consolidated web 24 Suction device 24a Circulating belt 24b Suction 25 Guide roller 26 Unwinding station 26a reinforced fleece 27 deflection roller Central axis drums

Claims

1. System (100) for bonding a web (23) which includes at least one layer of non-bonded web and / or a layer of loose fibres, comprising at least one transport table (17) which is configured to convey the non-bonded web and / or the layer of loose fibres, wherein the transport table (17) comprises a circulating belt (17a) with a first horizontal section (17b), downstream of which a second downward-sloping section (17c) follows in the material conveying direction, with a first cylinder (18) in the material conveying direction with at least two water beams (18.2, 18.1), and a second cylinder (20) arranged above the first cylinder (18) with at least two water beams (20.1, 20.2), characterised in that, in order to receive the web or the layer of loose fibres, the first cylinder (18) interacts with the downward-sloping section (17c) of the transport table (17) in such a way that the upper face of the non-bonded web or the upper face of the layer of loose fibres rests on the surface of the cylinder (18).

2. System according to claim 1, characterised in that the rotary axis of the first cylinder (18) is arranged below the plane of the horizontal section (17b) of the transport table (17).

3. System according to claim 1, characterised in that a guide roller (19) is arranged between the cylinders (18, 20) in such a way that the web or the layer of loose fibres is received with the upper face by the second cylinder (20).

4. System according to claim 1, characterised in that the cylinders (18, 20) feature a common middle axis (Ma), wherein the water beams (18.1, 18.2, 20.1, 20.2, 20.3) are arranged downstream of the middle axis (Ma) in the direction of material flow.

5. System according to claim 1, characterised in that a maximum of two deflection rollers (21, 22) which are configured to direct the bonded web (23) to a downstream processing station, are arranged downstream of the second cylinder (20) in the direction of material flow.

6. System according to claim 1, characterised in that the first cylinder (18) comprises two further water beams (18.3, 18.4) which are arranged underneath the pivot point of the first cylinder (18).

7. System according to claim 6, characterised in that a water beam (18.4) is arranged within the belt (17a) and is aligned to the cylinder (18) by the downward-sloping section (17c).

8. System according to claim 1, characterised in that a guide roller (25) is arranged between the cylinders (18, 20) in the opposite direction to the direction of material flow, wherein the guide roller (25) is configured to guide the web with its lower face onto the second cylinder (20).

9. System according to claim 1, characterised in that the layer of loose fibres is generated as a fibrous material (9) by a device in the system (100) which is configured as an inclined wire former (1), round wire former, melt-blown system, secondary headbox or as an air-laid system.

10. System according to claim 1, characterised in that the web is generated as a carded web (15a) by a roller card (15) in the system (100), wherein the roller card (15) is arranged downstream of the device for generating the fibrous material (9) in the direction of material flow.

11. System according to claim 10, characterised in that the roller card (15) is arranged in the system (100) so that the carded web (15a) is laid on the fibrous material (9) and both form a fibre / web composition (16) together in the system (100).

12. System according to claim 1, characterised in that at least one cylinder (18 or 20) comprises a cleaning device (18R or 20R), preferably both cylinders (18, 20) comprise a cleaning device (18R, 20R).

13. System according to claim 9, characterised in that an unwinding station (26) is used to introduce a bonded web (26a) into the system, on which the fibrous material (9) can be laid.

14. Method for bonding a web (23) which includes at least one layer of non-bonded web and / or a layer of loose fibres, wherein the non-bonded web and / or the layer of loose fibres is conveyed to a first cylinder (18) by a transport table (17) and, in the process, the upper face of the non-bonded web or the upper face of the layer of loose fibres is transferred onto the surface of the first cylinder (18) by a downward-sloping section (17c), wherein a bonding process is performed on the first cylinder (18) by a minimum of two water beams (18.1, 18.2) from the underside of the web or the layer of loose fibres, and a further bonding process with water beams is performed on a second cylinder (20) which is arranged above the first cylinder (18).

15. Method according to claim 14, characterised in that the web or the layer of loose fibres is guided to the second cylinder (20) by a guide roller (19) so that its upper face is received by the second cylinder (20).

16. Method according to claim 14, characterised in that the web (23) bonded on the first and second cylinders (18, 29) is directed to a downstream processing station and is deflected a maximum of two times in the process.

17. Method according to claim 14, characterised in that the layer of non-bonded web and / or layer of loose fibres is bonded on the first cylinder (18) with two further water beams (18.3, 18.4).

18. Method according to claim 17, characterised in that a water beam (18.4) which is arranged within the belt (17a) and is aligned to the cylinder (18) by the downward-sloping section (17c), is used to compact the layer of non-bonded web and / or layer of loose fibres between the belt (17a) and the first cylinder (18) and that the layer is transferred from belt (17a) to the cylinder (18).

19. Method according to claim 14, characterised in that the non-bonded web is guided onto the second cylinder (20) with its lower face by a guide roller (25) which is arranged between the cylinders (18, 20) in the opposite direction to the direction of material flow.

20. Method according to claim 14, characterised in that the layer of loose fibres is generated as a fibrous material (9) by a device in the system (100) which is configured as an inclined wire former (1), round wire former, melt-blown system, secondary headbox or as an air-laid system.

21. Method according to claim 14, characterised in that the non-bonded web is configured as a carded web (15a) which is generated by a roller card (15) in the system (100), wherein the carded web (15a) is introduced into the system (100) downstream of the fibrous material (9) in the direction of material flow.

22. Method according to claim 21, characterised in that the carded web (15a) is laid on the fibrous material (9) and both form a fibre / web composition (16) together in the system (100).

23. Method according to claim 22, characterised in that a non-bonded web (26a) is introduced into the system on which the fibrous material (9) can be laid.