EP1954877B1 - Tissue machine - Google Patents

Abstract

An apparatus for producing a fibrous web, in particular a tissue web, with a press zone through which the fibrous web is passed in a lying position between a circulating permeable structured belt and a circulating permeable non-structured supporting belt. A press nip is provided on a Yankee Cylinder through which the fibrous web is passed in the lying position together with the structured belt between the structured belt and the Yankee cylinder, whereby the press zone is limited on the side adjacent the supporting belt by a substantially smooth surface, and whereby the supporting belt is not brought together with the fibrous web and the structured belt until proximate to the press zone.

Description

The invention relates to a device for producing a fibrous web, in particular tissue web, according to the preamble of claim 1.

From the document US2005 / 0167066 A1 For example, a method and apparatus for producing a structured fibrous web is known. The fibrous web is formed on a structured sieve of a pulp suspension and then placed on the structured screen in contact with a felt and passed through a press zone. In this press zone, the structured sieve, the fibrous web and the felt are traversed by air. Subsequently, the fibrous web is further dewatered in a press nip between a roll and a Yankee Trockenzyfinder.

The document US200210062936 A1 discloses a machine for producing a soft fibrous web. The machine has a press section through which the fibrous web is guided with an impermeable belt and a felt. After the press section, the fibrous web is transferred in a transferip from the impermeable belt to the surface of a Yankee drying cylinder.

In Scripture WO2005 / 075732 A2 a belt press for dewatering a web is disclosed. The web is passed between two permeable belts together with an external press belt over a roller. The press belt is under tension, whereby a pressure is exerted on the web.

Tissue paper ideally has a high absorbency or a high water absorption capacity in conjunction with a high tear resistance. The absorbency and the water absorption capacity are essentially determined by the volume and the porosity of the tissue paper.

To increase the volume has already been proposed to press the tissue paper web during their production only zonal, in addition to the pressed tear-resistant areas to obtain even slightly pressed or ungepresste voluminösere areas.

In the production of tissue paper, the tissue web is passed in a final drying step over the surface of a heated Yankee drying cylinder before the finished product is creped from this.

The invention has for its object to provide an improved device of the type mentioned. In particular, a better formation of the pulp or tissue web produced is to be achieved.

This object is achieved by a device for producing a fibrous web, in particular tissue web, with a press zone through which the fibrous web between a circulating permeable structured Ribbon and a circulating, non-structured permeable support band is guided lying, and provided on a Yankee press nip through which the fibrous web is passed together with the structural band between the structural band and Yankee cylinder, wherein the pressing zone on the support band adjacent side is limited by a preferably at least substantially smooth surface, and wherein the support band is at least substantially brought together in the press zone with the fibrous web and the structural band at least substantially.

Due to this design it is ensured that in the web running direction before the press zone no excessive forces between the fibrous web and the permeable support belt occur, as was previously the case, for example, in the region of guide rollers over which the support belt was guided together with the fibrous web and the structural band , Excessive deflection of the sandwich "support belt, fibrous web, structural band", for example, in the region of a deflecting roller in the web running direction in front of the press zone is therefore avoided according to the invention. Accordingly, the forces acting there on the fibrous web are reduced, whereby a better formation is achieved.

After the fibrous web is pressed in the press zone between the structural band and a circulating, unstructured, ie relatively smooth permeable support band, the tissue web can be brought into contact with the Yankee dryer cylinder with a relatively smooth side, while on the other hand due to the other Rail side lying structural band only a part of the pulp or tissue web is pressed. In contrast to the conventional TAD machines, the tissue web can thus come into contact with the Yankee cylinder with approximately 100% surface area of the relevant side, while only a part of it is pressed.

As the fibrous web is further dewatered towards the side away from the structural band by the supporting and / or dewatering band, the fibers are urged in the direction of the relatively flat or smooth surface of the supporting band, in particular formed by a dewatering band. The drainage can be done for example by a correspondingly high vacuum and / or mechanically, for example by means of a tension band, through which the structural band, the fibrous web and the support band are pressed against a preferably smooth surface. The gas stream in question preferably flows first through the permeable structural band, then the fibrous web and then the preferably permeable support band. In contrast, in a conventional TAD method, the gas stream in question first flows through the fibrous web and then through the structured web. In contrast to the solution according to the invention, the fibrous web thus does not receive a smooth surface in such a conventional TAD method. Besides, the differential pressure generated in the conventional TAD method is relatively small.

The above object is also achieved according to the invention by a device for producing a fibrous web, in particular tissue web, with a press zone, through which the fibrous web is passed lying between a circulating permeable structured band and a circulating, non-structured permeable support band, and a a press nip provided in a Yankee cylinder, through which the fibrous web is passed lying together with the structural band between the structural band and the Yankee cylinder, wherein the press zone is bounded on the side adjacent to the support band by a preferably at least substantially smooth surface, and wherein the support band in FIG one of the press zone in the web running direction immediately preceding area in which the fibrous web and the structural band are at least substantially rectilinear, is merged with the fibrous web and the structural band, or the support band in the region of the P resszone in the running direction preceding idler roll with the fibrous web and the Structural band brought together and the wrap, over which the structural band and the fibrous web and the support belt wrap around the guide roller together, less than about 45 °.

In this solution according to the invention, the occurrence of excessive forces between the fibrous web and the permeable support belt in front of the press zone is thus counteracted by the support belt having at least substantially a straight line in a region preceding the web running direction in the press zone in which the fibrous web and the structural band run at least substantially rectilinearly the fibrous web and the structural band is brought together, or the support band in the region of one of the press zone in the web running direction preceding guide roller merged with the fibrous web and the structural band and the wrap angle over which the structural band and the fibrous web and the support band co-ordinates the guide roller, less than about 45 ° is selected. As a result, an improved formation of the fibrous web is also achieved here, in particular by avoiding excessively large forces between the fibrous web and the support belt in front of the press zone, for example due to excessive deflection in the region of a guide roller or the like.

The device according to the invention further comprises a forming zone upstream of the press zone in the direction of travel of the fibrous web in which the fibrous web is formed on a circumferential permeable structured band.

Since the fibrous web is thus already formed on a circumferential permeable structured band, the wells of the structured band are filled with fibers, instead of sucking the fibers of an already formed web as in a conventional TAD method in the recesses of the structural band. As a result, regions of the fibrous web are formed with increased basis weight in the wells of the structural band.

Preferably, in this case the fibrous web is guided on the structural band through the press zone on which it is formed. As a result, the formed fibrous web does not have to be transferred to the structural band with which it is passed through the press zone.

In an expedient practical embodiment of the first variant of the invention, the support belt runs in the web running direction in front of the fibrous web and the structural band on the preferably smooth surface.

A preferred practical embodiment of the second variant of the invention is characterized in that the wrap angle over which the structural band and the fibrous web and the support belt wrap the guide roller together is less than about 15 ° and preferably less than about 10 °.

The guide roller may have a diameter less than 1.2 meters or less than 0.8 meters or less than 0.6 meters.

The preferred embodiments which are mentioned below, for example, are basically conceivable in both variants of the invention.

Thus, the preferably smooth surface bounding the press zone on the side adjacent to the support band can advantageously be formed by a curved surface. In this case, this curved surface, which delimits the pressing zone on the side adjacent to the support band, is preferably formed by a rotating roller.

It is particularly advantageous if means are provided for generating a gas flow in the region of the pressing zone, which flows through the structural band, the fibrous web and the support band. The direction of the gas flow is preferred directed from the structural band to the fibrous web and from the fibrous web to the support band.

In particular, means for generating an air stream and / or means for generating a vapor stream may be provided.

According to an advantageous practical embodiment of the respective device, the means for generating a gas stream comprise a suction roller provided with a rotating suction roll, which limits the pressing zone on the side adjacent to the support belt. The curved, preferably smooth surface is thus formed in this case by the rotating suction roll.

In principle, the gas flow can also be generated at least in part by means of a flat or curved suction box or the like, which delimits the pressing zone on the side adjacent to the support belt.

In addition, it is also conceivable, for example, to generate the gas flow at least partially by means of an overpressure hood arranged on the side of the permeable structural band.

Alternatively or additionally, the structural band, the fibrous web and the support band can advantageously be pressed against the preferably smooth surface by means of an air-permeable press belt under tension. In this case, the preferably smooth surface can in particular be formed again by a rotating roller.

It may be advantageous to generate the gas flow at least partially by means of an overpressure hood arranged in the loop of the press belt in the press area.

A further advantageous embodiment is given by the fact that the beginning of the suction zone in the suction roll or the suction box is arranged before the beginning of the press zone.

As a structural band, a structured sieve is expediently provided.

According to a preferred practical embodiment of the respective device according to the invention, a TAD (through-air-drying) screen is provided as a structural band.

As already mentioned, the support belt can be, in particular, a dewatering belt, preferably a felt or a sieve.

Preferably, the relatively recessed and the relatively elevated regions of the structural band are formed and arranged relative to each other that a maximum of 35% and preferably at most 25% of the structural band are pressed in the press nip.

An as gentle as possible pressing is achieved in that the press nip provided on the Yankee cylinder is a shoe press nip or a conventional roll press nip.

In the latter case, the counter roll can be formed by a conventional press roll or a suction press roll.

As already mentioned, the fibrous web in the area of the press nip is preferably transferred from the structural band to the surface of the Yankee cylinder. In this press nip so the fibrous web is between the structural band and the Yankee cylinder, ie on the side of the Yankee cylinder.

The fibrous web removed again from the Yankee cylinder is expediently fed to a take-up device.

It is also particularly advantageous if, in the web running direction in front of the press zone, at least one suction box with a hole pattern is provided. Alternatively or additionally, such a suction box with hole pattern may advantageously be provided after the press zone.

Figur 1

eine schematische Darstellung einer beispielhaften Ausführungsform einer Vorrichtung zur Herstellung einer Faserstoffbahn, insbesondere Tissuebahn, die in einem zwischen der Blattbildungszone und dem Yankee-Zylinder liegenden Abschnitt Z alternativ beispielsweise entsprechend der Darstellung "A" in Figur 2 oder entsprechend der Darstellung "B" in Figur 3 ausgestaltet sein kann,

Figur 2

eine schematische Darstellung einer beispielhaften Ausgestaltung "A" des zwischen der Blattbildungszone und dem Yankee-Zylinder liegenden Abschnitts Z der Vorrichtung gemäß Figur 1 und

Figur 3

eine schematische Darstellung einer beispielhaften Ausgestaltung "B" des zwischen der Blattbildungszone und dem Yankee-Zylinder liegenden Abschnitts Z der Vorrichtung gemäß Figur 1.

The invention will be explained in more detail below with reference to exemplary embodiments with reference to the drawing; in this show:

FIG. 1

a schematic representation of an exemplary embodiment of an apparatus for producing a fibrous web, in particular tissue web, in an alternative lying between the sheet forming zone and the Yankee cylinder section Z, for example, according to the representation "A" in FIG. 2 or according to the representation "B" in FIG. 3 can be designed

FIG. 2

a schematic representation of an exemplary embodiment "A" of lying between the sheet forming zone and the Yankee cylinder section Z of the device according to Figure 1 and

FIG. 3

a schematic representation of an exemplary embodiment "B" of lying between the sheet forming zone and the Yankee cylinder section Z of the device of Figure 1.

1 shows a schematic representation of an exemplary embodiment of an apparatus 10 for producing a fibrous web, which in the present case is, for example, a tissue web 22.

According to the first, by the figure 1 in conjunction with the FIG. 2 1, a headbox 12 delivers a substance suspension jet into an inlet gap 14, which is formed in the region of a forming roller 16 between an inner circumferential permeable structured band 18 and an outer peripheral forming fabric 20, which converge in the region of the forming roller 16 and then together around this forming roller 16 are guided.

The structural band 18 may in particular be a three-dimensionally structured sieve and preferably a TAD sieve.

The Formiersieb 20 has the tissue web 22 facing a relatively smooth compared to the respective side of the structural band 18 side.

In contrast, the tissue web 22 facing side of the structural band 18 has recessed areas and relatively elevated areas, wherein the tissue web 22 is formed in these recessed and raised areas of the structural band 18.

In the area of the forming roller 16, the tissue web 22 is substantially dewatered by the outer forming wire 20. Subsequently, the forming fabric 20 is separated again in the region of a deflection roller 24 from the tissue web 22, which together with the structure band 18 on to a press zone 26 (see. FIG. 2 ), in which the tissue web 22 is pressed between the structural band 18 and a circumferential, non-structured, permeable support band 28.

The permeable support belt 28 may in particular be a dewatering belt, preferably a felt or a screen.

In the area of the press zone 26, pressure is thus exerted on the structure band 18, the tissue web 22 and the support band 28 in such a way that the tissue web 22 is dewatered in the direction of the support band 28 formed by a dewatering band.

Since the tissue web 22 in the press zone 26 is dewatered in the direction of the permeable support belt 28 and the structural band 18 passed through this press zone 26 is identical to the structural band on which the tissue web 22 has been formed, the bulky portions of the tissue web 22 are less compressed than the less bulky sections, so that, as a result, the voluminous structure of the respective bulkier sections is preserved.

In the present case, the dewatering pressure for the tissue web 22 in the press zone 26 is generated at least in sections simultaneously by a gas flow and by a mechanical pressing force.

The gas stream first flows through the structure band 18, then the tissue web 22 and finally the permeable support band 28.

As can be seen with reference to FIG. 1, the gas flow in the present case is generated by a suction zone 30 of a suction roll 32.

The alternatively or additionally applied mechanical force is produced by guiding the structure band 18, the tissue web 22 and the support band 28 in the press zone 26 between a tensioned press belt 34 and a preferably at least substantially smooth surface, which are here represented, for example, by the Roller 32 is formed.

The pressing zone 26 is at least substantially fixed by the wrap area of the press belt 34 around the lateral surface of the suction roll 32.

The press belt 34 is clamped by two guide rollers 36, 38 on the suction roll 32, wherein the structural band 18 and the fibrous web 22 come to rest between this press belt 34 and the suction roll 32. In this case, the structural band 18 and the fibrous web 22 are brought together in the region of the deflection roller 36 with the press belt 34. Subsequent to this deflection roller 36, the press belt 34, the structure belt 18 and the tissue web 22 are fed together to the suction roll 32, wherein at the point where the press belt 34, the structural band 18 and the fibrous web 22 accumulate on the suction roll 32, the Suction zone 30 begins. This suction zone 30 terminates in the region of the deflection roller 38, through which the press belt 34 is removed from the structure belt 18 and the fibrous web 22 upwards. In this area, the structural band 18 and the tissue web 22 run off the suction roller 32 again.

The structure band 18 and the tissue web 22 run in the initial region of the suction zone 30 on the looped by the support belt 28 suction roller 32, wherein the support belt 28 only in the region of this contact point of the structural band 18 and fibrous web 22, i. only in the region of the press zone 26 and the suction zone 30 is merged with the fibrous web 22 and the structural band 18.

As based on the FIG. 2 can be seen, the support belt 28 runs in front of the fibrous web 22 and the structural band 18 on the preferably smooth surface, ie here the suction roller 32. In the area of the respective contact point of the support belt 28 on the suction roller 32, the support belt 28 is guided around its own deflection roller 58.

Following the press zone 26, the structure band 18 is guided together with the tissue web 22 through a region 40 (see FIG. 1) in which the tissue web 22 can be subjected to at least one further drying step, for example.

Subsequently, the tissue web 22 is guided together with the structural band 18 by a press nip 44 formed on a drying cylinder, namely a Yankee cylinder 42. In this case, the tissue web 22 lies in this press nip 44 between the structure band 18 and the smooth surface of the Yankee cylinder 42. The press nip 44 is formed in the present case, for example, by a shoe press nip. The Yankee cylinder 42 is thus assigned a shoe press unit, here a shoe press roll 46, for forming the press nip 44. As can be seen from FIG. 1, a hood 62 can be assigned to the Yankee cylinder 42.

Because the tissue web 22 has been formed between the structural band 18 and the relatively smooth forming fabric 20, only the side of the tissue web 22 formed on the structure band 18 has a wavy surface. In contrast, the surface of the tissue web 22 formed on the smooth forming fabric 20 is relatively smooth. With this smooth side, the tissue web 22 in the press nip 44 now comes into contact with the surface of the Yankee cylinder 42. The tissue web 22 thus touches the Yankee cylinder 42 with a relatively large area. In addition, after the structural band 18 passed through the press nip 44 is identical to the structural band on which the tissue web 22 has been formed, it is ensured that the voluminous regions of the tissue web 22 are practically not pressed in this press nip 44 either. In contrast, the less bulky areas of the tissue web 22 are pressed, whereby the strength of the tissue web 22 is further increased.

Subsequent to the press nip 44, the structure band 18 is separated from the tissue web 22, which is guided on the Yankee cylinder 42 as far as a scraper 48, by means of which the tissue web 22 is creped and lifted off the Yankee cylinder 42. Subsequently, the tissue web 22 is fed to a take-up unit 50, in which it is wound up by means of a pressure roller 52 into a winding 54.

The tissue web 22 is therefore transferred in the region of the press nips 24 from the structural band 18 to the surface of the Yankee cylinder 42.

As a gas stream, which flows through in the press zone 26, first the structure band 18, then the tissue web 22 and finally the support band 28 (see. FIG. 2 ), in particular an air flow and / or steam flow can be generated.

As an alternative or in addition to the suction roll 22, the gas stream can also be generated, at least partially, by means of an overpressure hood, not shown here, arranged on the side of the permeable structure strip 18.

The relatively recessed regions and the relatively elevated regions of the structure band 18 are preferably designed and arranged relative to one another such that a maximum of 35% and preferably not more than 25% of the structural band 18 is pressed in the press nip 44 formed with the Yankee cylinder 42.

The second, through the figure 1 in conjunction with the FIG. 3 reproduced variant differs from the first essentially by the fact that the support belt 28 in one of the press zone 26 in the web running direction L immediately preceding β mn% M henden area in which the tissue web 22 and the structural band 18 at least substantially rectilinearly, with the tissue web 22 and the structural band 18 is brought together, or the support belt 28 in the region of the press zone 26 in the web running direction L preceding deflection roller 64 (see. FIG. 3 ) with the Tissuebahn 22 and the structural band 18 merged and thereby the wrap angle α, over which the structure of the belt 18 and the tissue web 22 and the support belt 28, the guide roller 64 co-together, is selected to be less than about 45 °.

In this case, the wrap angle α, over which the structure band 18 and the tissue web 22 and the support belt 28, the guide roller 64 wrap around together, in particular less than about 15 °, wherein it is preferably selected to be less than about 10 °.

By the support belt 28 is brought together in one area with the tissue web 22 and the structural band 18 by having an at least substantially rectilinear course, or the wrap angle α over which the structure band, the tissue web 22 and the support band together around the guide roller 64 are chosen as small as possible, the forces occurring between the tissue web 22 and support belt 28 before the press zone 26 are kept as low as possible, so that the result again a better formation of the tissue web 22 produced.

LIST OF REFERENCE NUMBERS

10

contraption

12

headbox

14

inlet gap

16

forming roll

18

structured band

20

forming fabric

22

tissue web

24

deflecting

26

press zone

28

support band

30

suction zone

32

suction roll

34

press belt

36

deflecting

38

deflecting

40

Area

42

Yankee cylinder

44

press nip

46

Shoe press roll

48

scraper

50

rewinder

52

pressure roller

54

reel

58

deflecting

62

Hood

64

deflecting

α

Wrap angle

Claims (24)

1. Apparatus (10) for producing a fibrous web (22), in particular a tissue web, having a pressing zone (26), through which the fibrous web (22) is led lying between a circulating permeable structured belt (18) and a circulating non-structured permeable supporting belt (28), and having a press nip (44) provided on a Yankee cylinder (42), through which the fibrous web (22) is led together with the structured belt (18), lying between structured belt (18) and Yankee cylinder (42), the pressing zone (26) being bounded on the side adjacent to the supporting belt (28) by a preferably at least substantially smooth surface,
   characterized in that
   the supporting belt (28) is led together with the fibrous web (22) and the structured belt (18) at least substantially only in the region of the pressing zone (26).
2. Apparatus (10) for producing a fibrous web (22), in particular a tissue web, having a pressing zone (26), through which the fibrous web (22) is led lying between a circulating permeable structured belt (18) and a circulating non-structured permeable supporting belt (28), and having a press nip (44) provided on a Yankee cylinder (42), through which the fibrous web (22) is led together with the structured belt (18), lying between structured belt (18) and Yankee cylinder (42), the pressing zone (26) being bounded on the side adjacent to the supporting belt (28) by a preferably at least substantially smooth surface,
   characterized in that
   the supporting belt (28) is led together with the fibrous web (22) and the structured belt (18) in a region which directly precedes the pressing zone (26) in the web running direction (L) and in which the fibrous web (22) and the structured belt (18) run at least substantially rectilinearly, or the supporting belt (28) is led together with the fibrous web (22) and the structured belt (18) in the region of a deflection roll (64) which precedes the pressing zone (26) in the web running direction (L), and the wrap angle (α) over which the structured belt (18) and the fibrous web (22) and also the supporting belt (28) wrap jointly around the deflection roll (64) is less than about 45°.
3. Apparatus according to Claim 1 or 2,
   characterized in that
   a sheet forming zone is provided, which is placed upstream of the pressing zone (26) in the running direction of the fibrous web (22), and in which the fibrous web (22) is formed on a circulating permeable structured belt (18).
4. Apparatus according to Claim 3,
   characterized in that
   the fibrous web (22) is led through the pressing zone on the structured belt (18) on which it is formed.
5. Apparatus according to one of Claims 1, 3 or 4,
   characterized in that the supporting belt (28) runs onto the preferably smooth surface before the fibrous web (22) and the structured belt (18).
6. Apparatus according to Claim 2, 3 or 4,
   characterized in that
   the wrap angle (α) over which the structured belt (18) and the fibrous web (22) and also the supporting belt (28) wrap jointly around the deflection roll (64) is less than about 15°.
7. Apparatus according to Claim 6,
   characterized in that
   the wrap angle (α) over which the structured belt (18) and the fibrous web (22) and also the supporting belt (18) wrap jointly around the deflection roll (64) is less than about 10°.
8. Apparatus according to one of the preceding claims,
   characterized in that
   the preferably smooth surface bounding the pressing zone (26) on the side adjacent to the supporting belt (28) is formed by a curved surface.
9. Apparatus according to Claim 8,
   characterized in that
   the curved surface bounding the pressing zone (26) on the side adjacent to the supporting belt (28) is formed by a rotating roll (32).
10. Apparatus according to one of the preceding claims,
    characterized in that
    means (30, 32) are provided in the region of the pressing zone (26), for producing a stream of gas, which flows through the structured belt (18), the fibrous web (22) and the supporting belt (28).
11. Apparatus according to Claim 10,
    characterized in that
    the direction of the stream of gas is oriented from the structured belt (18) towards the fibrous web (22) and from the fibrous web (22) towards the supporting belt (28).
12. Apparatus according to Claim 10 or 11,
    characterized in that
    means (30, 32) for producing a stream of air and/or means for producing a stream of steam are provided.
13. Apparatus according to one of Claims 10 to 12,
    characterized in that
    the means for producing a stream of gas comprise a rotating suction roll (32) which is provided with a suction zone (30) and which bounds the pressing zone (26) on the side adjacent to the supporting belt (28).
14. Apparatus according to one of Claims 10 to 12,
    
    characterized in that
    the means for producing a stream of gas comprise a flat or curved suction box, which bounds the pressing zone (26) on the side adjacent to the supporting belt (28).
15. Apparatus according to one of Claims 10 to 14,
    characterized in that
    the means for producing a stream of gas comprise a positive pressure hood arranged on the side of the permeable structured belt (18).
16. Apparatus according to one of the preceding claims,
    characterized in that
    the structured belt (18), the fibrous web (22) and the supporting belt (28) can be pressed against the preferably smooth surface by means of an airpermeable press belt (34) that is under tension.
17. Apparatus according to Claim 16,
    characterized in that
    the preferably smooth curved surface is formed by a rotating roll (32).
18. Apparatus according to one of the preceding claims,
    characterized in that
    the structured belt (18) provided is a structured fabric.
19. Apparatus according to one of the preceding claims,
    characterized in that
    the structured belt (18) provided is a TAD fabric.
20. Apparatus according to one of the preceding claims,
    characterized in that
    the supporting belt (28) provided is a dewatering belt, in particular a felt or fabric.
21. Apparatus according to one of the preceding claims,
    characterized in that
    the relatively depressed and the relatively elevated regions of the structured belt (18) are formed and arranged relative to one another in such a way that at most 35% and preferably at most 25% of the structured belt (18) is pressed in the press nip (44).
22. Apparatus according to one of the preceding claims,
    characterized in that
    the press nip (44) provided on the Yankee cylinder (42) is formed by a shoe press nip or a conventional roll press nip.
23. Apparatus according to one of the preceding claims,
    characterized in that
    in the region of the press nip (44), the fibrous web (22) is transferred from the structured belt (18) to the surface of the Yankee cylinder (42).
24. Apparatus according to one of the preceding claims,
    characterized in that
    the fibrous web (22) taken off the Yankee cylinder (42) again is fed to a winding device (50).

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