EP1770210A1 - Method and device for manufacturing a tissue web - Google Patents
Method and device for manufacturing a tissue web Download PDFInfo
- Publication number
- EP1770210A1 EP1770210A1 EP06114195A EP06114195A EP1770210A1 EP 1770210 A1 EP1770210 A1 EP 1770210A1 EP 06114195 A EP06114195 A EP 06114195A EP 06114195 A EP06114195 A EP 06114195A EP 1770210 A1 EP1770210 A1 EP 1770210A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- band
- web
- fibrous web
- calender
- belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/14—Making cellulose wadding, filter or blotting paper
- D21F11/145—Making cellulose wadding, filter or blotting paper including a through-drying process
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/14—Making cellulose wadding, filter or blotting paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
Definitions
- the invention relates to a device for producing a fibrous web, in particular tissue web. Furthermore, the invention relates to a method for producing a tissue web.
- the tissue paper in question may in particular be tissue paper such as toilet paper or facial tissue.
- Toilets and facial tissue ideally have a high softness, so-called “structural softness”, a high softness of the surface, so-called “surface softness” in conjunction with a high tear resistance.
- Softness is essentially determined by the volume and porosity of the tissue paper.
- tissue web 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. If this tissue web is passed over the Yankee drying cylinder, it is held by a covering.
- the invention has for its object to provide an improved device of the type mentioned egg n-gangs. It should be created with the device in particular the possibility of tissue paper very high volume to produce with a high softness. In addition, the tissue paper should be produced with as soft a surface as possible, without having to sacrifice any of the other properties of the tissue paper.
- a device for producing a fibrous web in particular a tissue web, having a press zone through which the fibrous web, together with a circulating permeable structured tape and an unstructured, i. smooth, permeable support belt between the structural belt and the support belt is guided horizontally, and provided on a drying cylinder press nip, through which the fibrous web is passed together with the structural band between the structural band and drying cylinder, wherein the fibrous web is passed to the drying cylinder through a calender.
- the task of transferring the fibrous web from the structural strip to the drying cylinder is essentially the task of the press nip provided on the drying cylinder.
- the dewatering of the fibrous web guided between the permeable structured belt and the non-structured permeable support belt it is preferably dewatered in the direction of the support belt.
- the calender preferably comprises a calender nip formed between two hard rolls, through which the fibrous web is passed.
- the two calender rolls are not heated.
- tissue paper very high volume with correspondingly great softness.
- a soft surface of the Tissue paper By using a corresponding calender following the drying cylinder, a soft surface of the Tissue paper while maintaining the other properties of the tissue paper. In addition, the tissue paper gets the desired grip.
- the two calender rolls are each formed by a chill roll.
- the two rolls are each uncoated.
- the calender comprises only two rollers.
- the line load generated in the calendering nip is preferably ⁇ 10 kN / m.
- the fibrous web is expediently fed to a winding device, which expediently comprises a winding core and a pressure roller which can be applied or pressed against the winding forming on the winding core.
- a winding device which expediently comprises a winding core and a pressure roller which can be applied or pressed against the winding forming on the winding core.
- the line force in the winding nip between the pressure roller and the roll is preferably ⁇ 0.2 kN / m.
- this line force is generally> 0.8 kN / m.
- the winding core of the winding device is driven.
- the pressure roller can also be driven.
- the forming roll does not have to be taken along by the pressure roll, the desired line forces as small as possible in the winding gap can be realized without difficulty.
- low line forces are also possible in the case of a driven pressure roller, since the fibrous web can be supplied from the scraper to the winding nip in such a case, for example by means of a screen belt, so that no train is required here.
- the tissue web can be brought into contact with the drying cylinder, which is preferably designed as a Yankee cylinder, with a relatively smooth side while, on the other hand, only part of the fibrous or tissue web is pressed due to the structure band lying on the other side of the web becomes.
- 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.
- the fibrous web is formed in a forming zone on the structural 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 wells of the structural band.
- the fibrous web As the fibrous web is further dewatered towards the side facing 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 support band formed in particular 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.
- flows through in a conventional TAD method the gas stream concerned first the fibrous web and then the structural band.
- the fibrous web thus does not receive a smooth surface in such a conventional TAD method.
- the differential pressure generated in the conventional TAD method is relatively small.
- the pressing zone is delimited on the side adjacent to the support belt by an at least substantially smooth surface.
- the preferably smooth surface defining the press zone on the side adjacent to the support belt is formed by a curved surface.
- this curved surface is preferably formed by a rotating roller.
- 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 gas stream preferably flows through first the structural band, then the fibrous web and finally the support band.
- means for generating an air stream and / or means for generating a vapor stream may be provided.
- the means for generating a gas flow 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.
- 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.
- the structural band, the fibrous web and the support band can advantageously be pressed against the preferably smooth surface by means of a press belt under tension.
- the preferably smooth surface can in particular be formed again by a rotating roller.
- a structured sieve is expediently provided.
- a TAD (through-air-drying) screen is provided as a structural band.
- the support band may in particular be a dewatering band, preferably a felt.
- 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.
- the fibrous web in the area of the press nip is preferably transferred from the structural band to the surface of the dry or Yankee cylinder.
- the fibrous web thus lies between the structural band and the drying cylinder, i. on the side of the drying cylinder.
- the fibrous web removed again from the drying or Yankee cylinder is then fed to the take-up device, as already mentioned.
- the method according to the invention produces tissue paper, such as, for example, toilet paper, cosmetic paper or tissue paper.
- the single figure of the drawing 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.
- a headbox 12 delivers a stock suspension jet into an inlet gap 14, which in the region of a forming roller 16 between an inner circumferential permeable structured band 18 and an outer circumferential Formierieb 20 is formed, which converge in the region of the forming roller 16 and are then performed together around this forming roller 16.
- the structural band 18 may in particular be a three-dimensionally structured sieve.
- the Formiersieb 20 has the tissue web 22 facing a relatively smooth compared to the respective side of the structural band 18 side.
- 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.
- the structural band 18 may be formed, for example, by a TAD screen.
- the tissue web 22 is substantially dewatered by the outer forming wire 20. Subsequently, the forming fabric 20 in the region of a deflection roller 24 is again separated from the tissue web 22, which is guided together with the structure band 18 on to a pressing zone 26, in which the tissue web 22 between the structural band 18 and a circumferential, non-structured permeable support band 28 lying is pressed.
- the permeable support belt 28 may in particular be a felt.
- pressure is 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, for example, by a felt.
- the tissue web 22 in the press zone 26 is dewatered in the direction of the permeable support belt 28, and the structural band passed through this press zone 26 in the present embodiment is identical to the structural belt on which the tissue web 22 has been formed, the bulky portions of the tissue web 22 become less strongly compressed than the less voluminous sections, so that as a result the voluminous structure of the voluminous sections concerned is retained.
- 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.
- the gas flow in the present case is generated by a suction zone 30 of a suction roll 32.
- the alternative and 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 smooth surface, which is formed here by the roller 32, for example ,
- the pressing zone 26 is at least substantially defined by the wrap area of the press belt 34 around the lateral surface of the suction roll 32, wherein this wrap is determined by the distance between the two guide rollers 36, 38.
- the tissue web 22, together with the structural band 18, is first guided via a suction box 40 and then through a press nip 44 formed on a drying cylinder, namely a Yankee cylinder 42.
- a press nip 44 formed on a drying cylinder, namely a Yankee cylinder 42.
- the press nip 44 is formed in the present case 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.
- a hood 62 can be assigned to the Yankee cylinder 42.
- the tissue web 22 formed between the structural band 18 and the relatively smooth forming fabric 20 Because the tissue web 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 with a relatively large area.
- the structured strip 18 guided by the press nip 44 in the present exemplary embodiment is identical to the structure strip on which the tissue web 22 has been formed, it is also 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.
- the structure band 18 is separated from the tissue web 22, while the tissue web 22 on the Yankee cylinder 42 is guided to a scraper 48, whereby the tissue web 22 is creped and lifted off the Yankee cylinder 42.
- tissue web 22 is then fed to a calender 64 and subsequently to a reeling or unwinding device 50 in which it is wound up into a reel 54 with the aid of a pressure roller 52.
- the tissue web 22 is therefore transferred in the region of the press nip 44 from the structure band 18 onto the surface of the Yankee cylinder 42.
- the surface of the Yankee cylinder 42 is scraped off continuously, for example by means of the scraper 48, and subsequently coated again by means of a coating device 56, so that a new coating is always present in the press nip 44.
- a coating device 56 Via another scraper 70, the surface of the Yankee cylinder 42 is cleaned.
- the calender 64 comprises a calender nip 66 formed between two hard rolls 64 ', 64 "through which the fibrous web 22 passes, and the two calender rolls 66', 66" are not heated. They are each formed by a chill roll and uncoated.
- the calender 64 comprises only these two hard rollers 64 ', 64 ".
- the line load generated in the calendering nip 66 is preferably ⁇ 10 kN / m.
- the tissue web 22 is fed to the take-up device 50, which comprises a winding core 68 and a pressure roller 52 which can be applied or pressed against the winding 54 forming on the winding core 68.
- the line force in the winding nip between the pressure roller 52 and the winding 54 is preferably selected to be ⁇ 0.2 kN / m.
- the winding core 68 is driven in the present embodiment.
- the gas flow can also be generated at least partially by means of an overpressure hood or steam blower box 58 arranged on the side of the permeable structure strip 18.
- a three-dimensionally structured sieve for example a TAD sieve, can be used in particular as a structural band 18.
- a drainage band can be provided.
- 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.
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Herstellung einer Faserstoffbahn, insbesondere Tissuebahn. Des weiteren betrifft die Erfindung ein Verfahren zur Herstellung einer Tissuebahn. Bei dem betreffenden Tissuepapier kann es sich insbesondere um Hygienepapier wie bspw. Toilettenpapier oder Gesichtstuch handeln.The invention relates to a device for producing a fibrous web, in particular tissue web. Furthermore, the invention relates to a method for producing a tissue web. The tissue paper in question may in particular be tissue paper such as toilet paper or facial tissue.
Toiletten und Gesichsttuchpapier besitzt idealerweise eine hohe Weichheit, sog. "structural softness", eine hohe Weichheit der Oberfläche, sog. "surface softness" in Verbindung mit einer hohen Reißfestigkeit. Dabei wird die Weichheit wesentlich durch das Volumen und die Porosität des Tissuepapiers bestimmt.Toilets and facial tissue ideally have a high softness, so-called "structural softness", a high softness of the surface, so-called "surface softness" in conjunction with a high tear resistance. Softness is essentially determined by the volume and porosity of the tissue paper.
Zur Erhöhung des Volumens wurde bereits vorgeschlagen, die Tissuepapierbahn bei deren Herstellung nur zonal zu pressen, um neben den gepressten reißfesteren Bereichen auch lediglich leicht gepresste oder ungepresste voluminösere Bereiche zu erhalten.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.
Bei der Herstellung von Tissuepapier wird die Tissuebahn in einem letzten Trocknungsschritt über die Mantelfläche eines beheizten Yankee-Trockenzylinders geführt, bevor das fertige Produkt von diesem gekreppt wird. Wird diese Tissuebahn über den Yankee-Trockenzylinder geführt wird, wird sie von einer Bespannung gehalten.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. If this tissue web is passed over the Yankee drying cylinder, it is held by a covering.
Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Vorrichtung der ei n-gangs genannten Art zu schaffen. Dabei soll mit der betreffenden Vorrichtung insbesondere die Möglichkeit geschaffen werden, Tissuepapier sehr hohen Volumens mit einer hohen Weichheit zu erzeugen. Zudem soll das Tissuepapier mit einer möglichst weichen Oberfläche erzeugt werden, ohne dabei Einbußen hinsichtlich der anderen Eigenschaften des Tissuepapiers in Kauf nehmen zu müssen.The invention has for its object to provide an improved device of the type mentioned egg n-gangs. It should be created with the device in particular the possibility of tissue paper very high volume to produce with a high softness. In addition, the tissue paper should be produced with as soft a surface as possible, without having to sacrifice any of the other properties of the tissue paper.
Diese Aufgabe wird erfindungsgemäß gelöst durch eine Vorrichtung zur Herstellung einer Faserstoffbahn, insbesondere Tissuebahn, mit einer Presszone, durch die die Faserstoffbahn zusammen mit einem umlaufenden permeablen strukturierten Band und einem nicht strukturierten, d.h. glatten, permeablen Stützband zwischen Strukturband und Stützband liegend hindurchgeführt wird, und einem an einem Trockenzylinder vorgesehenen Pressnip, durch den die Faserstoffbahn zusammen mit dem Strukturband zwischen Strukturband und Trockenzylinder liegend hindurchgeführt wird, wobei die Faserstoffbahn im Anschluss an den Trockenzylinder durch einen Kalander geführt ist.This object is achieved according to the invention by a device for producing a fibrous web, in particular a tissue web, having a press zone through which the fibrous web, together with a circulating permeable structured tape and an unstructured, i. smooth, permeable support belt between the structural belt and the support belt is guided horizontally, and provided on a drying cylinder press nip, through which the fibrous web is passed together with the structural band between the structural band and drying cylinder, wherein the fibrous web is passed to the drying cylinder through a calender.
Dem am Trockenzylinder vorgesehenen Pressnip kommt hierbei insbesondere im wesentlichen die Aufgabe des Transfers der Faserstoffbahn vom Strukturband auf den Trockenzylinder zu.In this case, the task of transferring the fibrous web from the structural strip to the drying cylinder is essentially the task of the press nip provided on the drying cylinder.
Bei der Entwässerung der zwischen dem permeablen strukturierten Band und dem nicht strukturierten permeablen Stützband geführten Faserstoffbahn wird diese vorzugsweise in Richtung des Stützbandes entwässert.During the dewatering of the fibrous web guided between the permeable structured belt and the non-structured permeable support belt, it is preferably dewatered in the direction of the support belt.
Der Kalander umfasst vorzugsweise einen zwischen zwei Hartwalzen gebildeten Kalandernip, durch den die Faserstoffbahn hindurchgeführt ist. Bevorzugt sind die beiden Kalanderwalzen nicht beheizt.The calender preferably comprises a calender nip formed between two hard rolls, through which the fibrous web is passed. Preferably, the two calender rolls are not heated.
Aufgrund dieser Ausbildung ergibt sich Tissuepapier sehr hohen Volumens mit entsprechend großem Weichheit. Durch den Einsatz eines entsprechenden Kalanders im Anschluss an den Trockenzylinder wird eine weiche Oberfläche des Tissuepapiers erreicht, während die anderen Eigenschaften des Tissuepapiers aufrechterhalten werden. Zudem erhält das Tissuepapier die gewünschte Griffigkeit.Due to this training results tissue paper very high volume with correspondingly great softness. By using a corresponding calender following the drying cylinder, a soft surface of the Tissue paper while maintaining the other properties of the tissue paper. In addition, the tissue paper gets the desired grip.
Bevorzugt sind die beiden Kalanderwalzen jeweils durch eine Hartgusswalze gebildet. Vorteilhafterweise sind die beiden Walzen jeweils unbeschichtet.Preferably, the two calender rolls are each formed by a chill roll. Advantageously, the two rolls are each uncoated.
Bei einer zweckmäßigen praktischen Ausführungsform der erfindungsgemäßen Vorrichtung umfasst der Kalander nur zwei Walzen.In a practical practical embodiment of the device according to the invention, the calender comprises only two rollers.
Zwischen den beiden Kalanderwalzen wird ein kleiner offener Kalandernip bzw. ein Kalandernip mit geringer Niplast gebildet. Dabei ist die in dem Kalandernip erzeugte Linienlast bevorzugt < 10 kN/m.Between the two calender rolls, a small open calender nip or a calender nip with a low nip load is formed. In this case, the line load generated in the calendering nip is preferably <10 kN / m.
In Anschluss an den Kalander ist die Faserstoffbahn zweckmäßigerweise einer Aufwickeleinrichtung zugeführt, die zweckmäßigerweise einen Wickelkern und eine Anpresswalze umfasst, die an den sich auf den Wickelkern bildenden Wickel anlegbar bzw. anpressbar ist.Following the calender, the fibrous web is expediently fed to a winding device, which expediently comprises a winding core and a pressure roller which can be applied or pressed against the winding forming on the winding core.
Um sicherzustellen, dass das zuvor erreichte hohe Volumen der Tissuebahn erhalten bleibt, ist die Linienkraft in dem Wickelspalt zwischen Anpresswalze und Wickel vorzugsweise ≤ 0,2 kN/m. Demgegenüber ist bei den bisher üblichen Aufwickeleinrichtungen diese Linienkraft in der Regel > 0,8 kN/m.To ensure that the previously achieved high volume of the tissue web is maintained, the line force in the winding nip between the pressure roller and the roll is preferably ≦ 0.2 kN / m. In contrast, in the usual rewinding devices, this line force is generally> 0.8 kN / m.
Zweckmäßigerweise ist der Wickelkern der Aufwickeleinrichtung angetrieben. Alternativ oder zusätzlich kann jedoch auch die Anpresswalze angetrieben sein.Conveniently, the winding core of the winding device is driven. Alternatively or additionally, however, the pressure roller can also be driven.
Da im Fall eines angetriebenen Wickelkerns der sich bildende Wickel nicht von der Anpresswalze mitgenommen werden muss, sind die gewünschten möglichst kleinen Linienkräfte im Wickelspalt problemlos realisierbar. Die gewünschten möglichst geringen Linienkräfte sind jedoch auch im Fall einer angetriebenen Anpresswalze möglich, da die Faserstoffbahn in einem solchen Fall beispielsweise mittels eines Siebbandes ausgehend vom Schaber dem Wickelspalt zugeführt werden kann, so dass auch hier kein Zug erforderlich ist.Since, in the case of a driven winding core, the forming roll does not have to be taken along by the pressure roll, the desired line forces as small as possible in the winding gap can be realized without difficulty. The desired as possible However, low line forces are also possible in the case of a driven pressure roller, since the fibrous web can be supplied from the scraper to the winding nip in such a case, for example by means of a screen belt, so that no train is required here.
Nachdem die Faserstoffbahn in der Presszone zwischen dem Strukturband und einem umlaufenden, nicht strukturierten, d.h. relativ glatten permeablen Stützband liegend gepresst wird, kann die Tissuebahn mit einer relativ glatten Seite mit dem bevorzugt als Yankee-Zylinder ausgeführten Trockenzylinder in Kontakt gebracht werden, während andererseits aufgrund des auf der anderen Bahnseite liegenden Strukturbandes lediglich ein Teil der Faserstoff- bzw. Tissuebahn gepresst wird. Anders als bei den herkömmlichen TAD-Maschinen kann die Tissuebahn also mit annähernd 100 % Oberfläche der betreffenden Seite mit dem Yankee-Zylinder in Kontakt kommen, während nur ein Teil davon gepresst wird.After the fibrous web in the press zone between the structural band and a circulating, unstructured, i. The tissue web can be brought into contact with the drying cylinder, which is preferably designed as a Yankee cylinder, with a relatively smooth side while, on the other hand, only part of the fibrous or tissue web is pressed due to the structure band lying on the other side of the web becomes. 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.
Bevorzugt wird die Faserstoffbahn in einer Blattbildungszone auf dem Strukturband gebildet. Damit werden die Vertiefungen des strukturierten Bandes mit Fasern aufgefüllt, anstatt die Fasern einer bereits gebildeten Bahn wie bei einem herkömmlichen TAD-Verfahren in die Vertiefungen des Strukturbandes zu saugen.Preferably, the fibrous web is formed in a forming zone on the structural band. Thus, 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 wells of the structural band.
Indem die Faserstoffbahn zur vom Strukturband abgewandten Seite hin durch das Stütz- und/oder Entwässerungsband hin weiter entwässert wird, werden die Fasern in Richtung der relativ ebenen oder glatten Oberfläche des insbesondere durch ein Entwässerungsband gebildeten Stützbandes gedrängt. Die Entwässerung kann beispielsweise durch ein entsprechend hohes Vakuum und/oder mechanisch, beispielsweise mittels eines Spannbandes erfolgen, durch das das Strukturband, die Faserstoffbahn und das Stützband gegen eine vorzugsweise glatte Fläche gepresst werden. Der betreffende Gasstrom durchströmt bevorzugt also zunächst das permeable Strukturband, dann die Faserstoffbahn und anschließend das vorzugsweise permeable Stützband. Demgegenüber durchströmt bei einem herkömmlichen TAD-Verfahren der betreffende Gasstrom zunächst die Faserstoffbahn und dann das Strukturband. Anders als bei der erfindungsgemäßen Lösung erhält die Faserstoffbahn bei einem solchen herkömmlichen TAD-Verfahren also keine glatte Fläche. Abgesehen davon ist der beim herkömmlichen TAD-Verfahren erzeugte Differenzdruck relativ gering.As the fibrous web is further dewatered towards the side facing 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 support band formed in particular 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. By contrast, flows through in a conventional TAD method, the gas stream concerned first the fibrous web and then the structural band. Unlike 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.
Vorteilhafterweise ist die Presszone auf der dem Stützband benachbarten Seite durch eine zumindest im Wesentlichen glatte Oberfläche begrenzt.Advantageously, the pressing zone is delimited on the side adjacent to the support belt by an at least substantially smooth surface.
Bei einer zweckmäßigen praktischen Ausführungsform der erfindungsgemäßen Vorrichtung ist die die Presszone auf der dem Stützband benachbarten Seite begrenzende vorzugsweise glatte Oberfläche durch eine gekrümmte Oberfläche gebildet. Dabei ist diese gekrümmte Oberfläche bevorzugt durch eine rotierende Walze gebildet.In an expedient practical embodiment of the device according to the invention, the preferably smooth surface defining the press zone on the side adjacent to the support belt is formed by a curved surface. In this case, this curved surface is preferably formed by a rotating roller.
Von Vorteil ist insbesondere auch, wenn Mittel zur Erzeugung eines Gasstromes im Bereich der Presszone vorgesehen sind, der das Strukturband, die Faserstoffbahn und das Stützband durchströmt. Dabei durchströmt der Gasstrom bevorzugt zunächst das Strukturband, dann die Faserstoffbahn und schließlich das Stützband.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 gas stream preferably flows through first the structural band, then the fibrous web and finally the support band.
Es können insbesondere Mittel zur Erzeugung eines Luftstromes und/oder Mittel zur Erzeugung eines Dampfstromes vorgesehen sein.In particular, means for generating an air stream and / or means for generating a vapor stream may be provided.
Gemäß einer vorteilhaften praktischen Ausführungsform der Vorrichtung umfassen die Mittel zur Erzeugung eines Gasstromes eine mit einer Saugzone versehene rotierende Saugwalze, die die Presszone auf der dem Stützband benachbarten Seite begrenzt. Die gekrümmte, vorzugsweise glatte Fläche ist in diesem Fall also durch die rotierende Saugwalze gebildet.According to an advantageous practical embodiment of the device, the means for generating a gas flow 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.
Grundsätzlich kann der Gasstrom zumindest teilweise aber auch mittels eines ebenen oder gekrümmten Saugkastens oder dergleichen erzeugt werden, der die Presszone auf der dem Stützband benachbarten Seite begrenzt.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.
Darüber hinaus ist beispielsweise auch denkbar, den Gasstrom zumindest teilweise mittels einer auf der Seite des permeablen Strukturbandes angeordneten Überdruckhaube zu erzeugen.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.
Alternativ oder zusätzlich können das Strukturband, die Faserstoffbahn und das Stützband vorteilhafterweise mittels eines unter Spannung stehenden Pressbandes gegen die vorzugsweise glatte Oberfläche gepresst werden. Dabei kann die vorzugsweise glatte Oberfläche insbesondere wieder durch eine rotierende Walze gebildet sein.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 a press belt under tension. In this case, the preferably smooth surface can in particular be formed again by a rotating roller.
Als Strukturband ist zweckmäßigerweise ein strukturiertes Sieb vorgesehen.As a structural band, a structured sieve is expediently provided.
Gemäß einer bevorzugten praktischen Ausführungsform der erfindungsgemäßen Vorrichtung ist als Strukturband ein TAD-(Through-Air-Drying)-Sieb vorgesehen.According to a preferred practical embodiment of the device according to the invention, a TAD (through-air-drying) screen is provided as a structural band.
Bei dem Stützband kann es sich, wie bereits erwähnt, insbesondere um ein Entwässerungsband, vorzugsweise einen Filz handeln.As already mentioned, the support band may in particular be a dewatering band, preferably a felt.
Bevorzugt sind die relativ vertieften und die relativ erhöhten Bereiche des Strukturbandes derart ausgebildet und relativ zueinander angeordnet, dass maximal 35 % und vorzugsweise maximal 25 % des Strukturbandes im Pressnip gepresst werden.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.
Eine möglichst schonende Pressung wird dadurch erreicht, dass der an dem Trocken- bzw. Yankee-Zylinder vorgesehene Pressnip ein Schuhpressnip ist.An as gentle as possible pressing is achieved in that the provided on the dry or Yankee press nip is a shoe press nip.
Wie bereits erwähnt, wird die Faserstoffbahn im Bereich des Pressnips vorzugsweise von dem Strukturband auf die Oberfläche des Trocken- bzw. Yankee-Zylinders übertragen. In diesem Pressnip liegt die Faserstoffbahn also zwischen dem Strukturband und dem Trockenzylinder, d.h. auf der Seite des Trockenzylinders.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 dry or Yankee cylinder. In this press nip, the fibrous web thus lies between the structural band and the drying cylinder, i. on the side of the drying cylinder.
Die vom Trocken- bzw. Yankee-Zylinder wieder abgenommene Faserstoffbahn wird dann, wie bereits erwähnt, der Aufwickeleinrichtung zugeführt.The fibrous web removed again from the drying or Yankee cylinder is then fed to the take-up device, as already mentioned.
Bei dem erfindungsgemäßen Verfahren zur Herstellung einer Tissuepapierbahn insbesondere Hygienepapierbahn werden folgende Schritte ausgeführt:
- Pressen der zwischen einem permeablen strukturierten Band und einem nicht strukturierten permeablen Stützband geführten Tissuepapierbahn,
- nachfolgendes Trocknen der Tissuepapierbahn an einer beheizten Fläche und
- nachfolgend Kalandrieren der Tissuepapierbahn.
- Pressing the tissue paper web between a permeable structured band and a non-structured permeable support band,
- subsequently drying the tissue paper web on a heated surface and
- subsequently calendering the tissue paper web.
Vorzugsweise wird mit dem erfindungsgemäßen Verfahren Hygienepapier, wie bspw. Toilettenpapier, Kosmetikpapier oder Papiertaschentuchpapier hergestellt.Preferably, the method according to the invention produces tissue paper, such as, for example, toilet paper, cosmetic paper or tissue paper.
Die Erfindung wird im Folgenden anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher erläutert.The invention will be explained in more detail below with reference to an embodiment with reference to the drawing.
Die einzige Figur der Zeichnung zeigt in schematischer Darstellung eine beispielhafte Ausführungsform einer Vorrichtung 10 zur Herstellung einer Faserstoffbahn, bei der es sich im vorliegenden Fall beispielsweise um eine Tissuebahn 22 handelt.The single figure of the drawing shows a schematic representation of an exemplary embodiment of an
Ein Stoffauflauf 12 liefert einen Stoffsuspensionsstrahl in einen Einlaufspalt 14, der im Bereich einer Formierwalze 16 zwischen einem innenliegenden umlaufenden permeablen strukturierten Band 18 und einem außenliegenden umlaufenden Formiersieb 20 gebildet ist, die im Bereich der Formierwalze 16 zusammenlaufen und anschließend gemeinsam um diese Formierwalze 16 geführt sind.A
Bei dem Strukturband 18 kann es sich insbesondere um ein dreidimensional strukturiertes Sieb handeln.The
Das Formiersieb 20 weist der Tissuebahn 22 zugewandt eine im Vergleich zur betreffenden Seite des Strukturbandes 18 relativ glatte Seite auf.The
Demgegenüber besitzt die der Tissuebahn 22 zugewandte Seite des Strukturbandes 18 vertiefte Bereiche und relativ dazu erhöhte Bereiche, wobei die Tissuebahn 22 in diesen vertieften und erhöhten Bereichen des Strukturbandes 18 gebildet wird.In contrast, the
Das Strukturband 18 kann beispielsweise durch ein TAD-Sieb gebildet sein.The
Im Bereich der Formierwalze 16 wird die Tissuebahn 22 im Wesentlichen durch das außenliegende Formiersieb 20 entwässert. Anschließend wird das Formiersieb 20 im Bereich einer Umlenkwalze 24 wieder von der Tissuebahn 22 getrennt, die zusammen mit dem Strukturband 18 weiter zu einer Presszone 26 geführt wird, in der die Tissuebahn 22 zwischen dem Strukturband 18 und einem umlaufenden, nicht strukturierten permeablen Stützband 28 liegend gepresst wird.In the area of the forming
Bei dem permeablen Stützband 28 kann es sich insbesondere um einen Filz handeln. Im Bereich der Presszone 26 wird derart Druck auf das Strukturband 18, die Tissuebahn 22 und das Stützband 28 ausgeübt, dass die Tissuebahn 22 in Richtung des beispielsweise durch einen Filz gebildeten Stützbandes 28 entwässert wird.The
Da die Tissuebahn 22 in der Presszone 26 in Richtung des permeablen Stützbandes 28 entwässert wird und das mit durch diese Presszone 26 geführte Strukturband beim vorliegenden Ausführungsbeispiel identisch mit dem Strukturband ist, auf dem die Tissuebahn 22 gebildet wurde, werden die voluminöseren Abschnitte der Tissuebahn 22 weniger stark komprimiert als die weniger voluminösen Abschnitte, so dass im Ergebnis die voluminöse Struktur der betreffenden voluminöseren Abschnitte erhalten bleibt.Since the
Im vorliegenden Fall wird der Entwässerungsdruck für die Tissuebahn 22 in der Presszone 26 zumindest abschnittsweise gleichzeitig durch einen Gasstrom und durch eine mechanische Presskraft erzeugt.In the present case, the dewatering pressure for the
Der Gasstrom durchströmt zunächst das Strukturband 18, dann die Tissuebahn 22 und schließlich das permeable Stützband 28.The gas stream first flows through the
Wie anhand der Figur 1 zu erkennen ist, wird die Gasströmung im vorliegenden Fall durch eine Saugzone 30 einer Saugwalze 32 erzeugt.As can be seen with reference to FIG. 1, the gas flow in the present case is generated by a
Die alternative und zusätzlich aufgebrachte mechanische Kraft wird dadurch erzeugt, dass das Strukturband 18, die Tissuebahn 22 und das Stützband 28 in der Presszone 26 zwischen einem unter Spannung stehenden Pressband 34 und einer glatten Oberfläche geführt wird, die hier beispielsweise durch die Walze 32 gebildet wird.The alternative and additionally applied mechanical force is produced by guiding the
Die Presszone 26 ist zumindest im Wesentlichen durch den Umschlingungsbereich des Pressbandes 34 um die Mantelfläche der Saugwalze 32 festgelegt, wobei dieser Umschlingungsbereich durch den Abstand der beiden Umlenkwalzen 36, 38 festgelegt ist.The pressing
Im Anschluss an die Saugwalze 32 wird die Tissuebahn 22 zusammen mit dem Strukturband 18 zunächst über einen Saugkasten 40 und daraufhin durch einen an einem Trockenzylinder, nämlich einem Yankee-Zylinder 42 gebildeten Pressnip 44 geführt. Dabei liegt die Tissuebahn 22 in diesem Pressnip 44 zwischen dem Strukturband 18 und der glatten Oberfläche des Yankee-Zylinders 42. Der Pressnip 44 ist im vorliegenden Fall durch einen Schuhpressnip gebildet. Dem Yankee-Zylinder 42 ist zur Bildung des Pressnips 44 also eine Schuhpresseinheit, hier eine Schuhpresswalze 46 zugeordnet. Wie anhand der Figur 1 zu erkennen ist, kann dem Yankee-Zylinder 42 eine Haube 62 zugeordnet sein.Subsequent to the
Dadurch, dass die Tissuebahn zwischen dem Strukturband 18 und dem dazu relativ glatten Formiersieb 20 gebildet wurde, weist nur die auf dem Strukturband 18 gebildete Seite der Tissuebahn 22 eine wellige Oberfläche auf. Demgegenüber ist die auf dem glatten Formiersieb 20 gebildete Oberfläche der Tissuebahn 22 relativ glatt. Mit dieser glatten Seite kommt die Tissuebahn 22 im Pressnip 44 nun in Kontakt mit der Oberfläche des Yankee-Zylinders 42. Die Tissuebahn 22 berührt den Yankee-Zylinder also mit einer relativ großen Fläche. Nachdem das durch den Pressnip 44 geführte Strukturband 18 beim vorliegenden Ausführungsbeispiel identisch ist mit dem Strukturband, auf dem die Tissuebahn 22 gebildet wurde, ist überdies sichergestellt, dass die voluminöseren Bereiche der Tissuebahn 22 auch in diesem Pressnip 44 praktisch nicht gepresst werden. Dagegen werden die weniger voluminösen Bereiche der Tissuebahn 22 gepresst, wodurch die Festigkeit der Tissuebahn 22 weiter erhöht wird.Because the tissue web has been formed between the
Im Anschluss an den Pressnip 44 wird das Strukturband 18 von der Tissuebahn 22 getrennt, während die Tissuebahn 22 auf dem Yankee-Zylinder 42 bis zu einem Schaber 48 geführt wird, wodurch die Tissuebahn 22 gekreppt und vom Yankee-Zylinder 42 abgehoben wird.Following the press nip 44, the
Daraufhin wird die Tissuebahn 22 einem Kalander 64 und im Anschluss daran einer Aufroll- oder Abwickeleinrichtung 50 zugeführt, in der sie mit Hilfe einer Anpresswalze 52 zu einem Wickel 54 aufgewickelt wird.The
Die Tissuebahn 22 wird also im Bereich des Pressnips 44 von dem Strukturband 18 auf die Oberfläche des Yankee-Zylinders 42 übertragen. Dabei wird die Oberfläche des Yankee-Zylinders 42 beispielsweise mittels des Schabers 48 laufend abgeschabt und mittels einer Beschichtungseinrichtung 56 anschließend wieder neu beschichtet, so dass in Pressnip 44 stets eine erneute Beschichtung vorliegt. Über einen weiteren Schaber 70 wird die Oberfläche des Yankee-Zylinders 42 gereinigt.The
Der Kalander 64 umfasst einen zwischen zwei Hartwalzen 64', 64" gebildeten Kalandernip 66, durch den die Faserstoffbahn 22 hindurchgeführt wird. Die beiden Kalanderwalzen 66', 66" sind nicht beheizt. Sie sind jeweils durch eine Hartgusswalze gebildet und unbeschichtet.The
Wie anhand der Figur 1 zu erkennen ist, umfasst der Kalander 64 nur diese beiden Hartwalzen 64', 64".As can be seen from FIG. 1, the
Die in dem Kalandernip 66 erzeugte Linienlast ist bevorzugt < 10 kN/m.The line load generated in the calendering nip 66 is preferably <10 kN / m.
Im Anschluss an den Kalander 64 wird die Tissuebahn 22 der Aufwickeleinrichtung 50 zugeführt, die einen Wickelkern 68 und eine Anpresswalze 52 umfasst, die an den sich auf dem Wickelkern 68 bildenden Wickel 54 anlegbar bzw. anpressbar ist. Um das zuvor erreichte relativ hohe Volumen der Tissuebahn 22 aufrechtzuerhalten, wird die Linienkraft in dem Wickelspalt zwischen Anpresswalze 52 und Wickel 54 bevorzugt ≤ 0,2 kN/m gewählt.Subsequent to the
Wie anhand der Figur 1 zu erkennen ist, ist beim vorliegenden Ausführungsbeispiel der Wickelkern 68 angetrieben.As can be seen from Figure 1, the winding core 68 is driven in the present embodiment.
Als Gasstrom, der in der Presszone 26 zunächst das Strukturband 18, dann die Tissuebahn 22 und schließlich das Stützband 28 durchströmt kann, insbesondere ein Luftstrom und/oder Dampfstrom erzeugt werden.As a gas stream, which in the
Alternativ oder zusätzlich zur Saugwalze 32 kann der Gasstrom zumindest teilweise auch mittels einer auf der Seite des permeablen Strukturbandes 18 angeordneten Überdruckhaube oder Dampfblaskastens 58 erzeugt werden.As an alternative or in addition to the
Wie bereits erwähnt, kann als Strukturband 18 insbesondere ein dreidimensional strukturiertes Sieb, beispielsweise ein TAD-Sieb eingesetzt werden.As already mentioned, a three-dimensionally structured sieve, for example a TAD sieve, can be used in particular as a
Als Stützband 28 kann, wie bereits erwähnt, insbesondere ein Entwässerungsband vorgesehen sein.As
Die relativ vertieften und die relativ erhöhten Bereiche des Strukturbandes 18 sind bevorzugt so ausgebildet und relativ zueinander angeordnet, dass maximal 35 % und vorzugsweise maximal 25 % des Strukturbandes 18 im mit dem Yankee-Zylinder 42 gebildeten Pressnip 44 gepresst werden.The relatively recessed regions and the relatively elevated regions of the
- 1010
- Vorrichtungcontraption
- 1212
- Stoffauflaufheadbox
- 1414
- Einlaufspaltinlet gap
- 1616
- Formierwalzeforming roll
- 1818
- Strukturbandstructured band
- 2020
- Formiersiebforming fabric
- 2222
- Tissuebahntissue web
- 2424
- Umlenkwalzedeflecting
- 2626
- Presszonepress zone
- 2828
- Stützbandsupport band
- 3030
- Saugzonesuction zone
- 3434
- Pressbandpress belt
- 3636
- Umlenkwalzedeflecting
- 3838
- Umlenkwalzedeflecting
- 4040
- Saugkastensuction box
- 4242
- Yankee-ZylinderYankee cylinder
- 4444
- Pressnippress nip
- 4646
- SchuhpresswalzeShoe press roll
- 4848
- Schaberscraper
- 5050
- Aufwickeleinrichtungtakeup
- 5252
- Anpresswalzepressure roller
- 5454
- Wickelreel
- 5656
- Beschichtungseinrichtungcoater
- 5858
- Überdruckhaube, DampfblaskastenOverpressure hood, steam box
- 6262
- HaubeHood
- 6464
- Kalandercalender
- 64'64 '
- Kalanderwalze, HartwalzeCalender roll, hard roll
- 64"64 "
- Kalanderwalze, HartwalzeCalender roll, hard roll
- 6666
- Kalandernipcalender nip
- 6868
- Wickelkernwinding core
- 7070
- Schaberscraper
Claims (34)
dadurch gekennzeichnet,
dass der Kalander (64) einen zwischen zwei Hartwalzen (64', 64") gebildeten Kalandernip (66) umfasst, durch den die Faserstoffbahn (22) hindurchgeführt ist.Device according to claim 1,
characterized,
that the calender (64) comprises a between two hard rolls (64 ', 64 ") formed calender nip (66) through which the fibrous web (22) is passed.
dadurch gekennzeichnet,
dass die beiden Kalanderwalzen (64', 64") nicht beheizt sind.Device according to claim 2,
characterized,
that the two calender rolls (64 ', 64 ") are not heated.
dadurch gekennzeichnet,
dass die beiden Kalanderwalzen (64', 64") jeweils durch eine Hartgusswalze gebildet sind.Device according to claim 2 or 3,
characterized,
that the two calender rolls (64 ', 64 ") are each formed by a chill roll.
dadurch gekennzeichnet,
dass die beiden Kalanderwalzen (64', 64") jeweils unbeschichtet sind.Device according to one of the preceding claims,
characterized,
that the two calender rolls (64 ', 64 ") are each uncoated.
dadurch gekennzeichnet,
dass der Kalander (64) nur zwei Walzen (64', 64") umfasst.Device according to one of the preceding claims,
characterized,
that the calender (64), only two rollers (64 ', 64 ") comprises.
dadurch gekennzeichnet,
dass die in dem Kalandernip (66) erzeugte Linienlast < 10 kN/m ist.Device according to one of the preceding claims,
characterized,
that in the calender nip (66) generated line load <10 kN / m.
dadurch gekennzeichnet,
dass die Faserstoffbahn (22) im Anschluss an den Kalander (64) einer Aufwickeleinrichtung (50) zugeführt ist.Device according to one of the preceding claims,
characterized,
that the fibrous web (22) is fed to a winding device (50) following the calender (64).
dadurch gekennzeichnet,
dass die Aufwickeleinrichtung (50) einen Wickelkern (68) und eine Anpresswalze (52) umfasst, die an den sich auf dem Wickelkern (68) bildenden Wickel (54) anlegbar ist.Device according to claim 8,
characterized,
in that the winding device (50) comprises a winding core (68) and a pressure roller (52) which can be applied to the winding (54) forming on the winding core (68).
dadurch gekennzeichnet,
dass die Linienkraft in dem Wickelspalt zwischen Anpresswalze (52) und Wickel (54) ≤ 0,2 kN/m ist.Device according to claim 9,
characterized,
that the line force in the winding nip between the pressing roller (52) and winding (54) is ≤ 0.2 kN / m.
dadurch gekennzeichnet,
dass der Wickelkern (68) angetrieben ist.Device according to one of the preceding claims,
characterized,
that the winding core (68) is driven.
dadurch gekennzeichnet,
dass die Anpresswalze (52) angetrieben ist.Device according to one of the preceding claims,
characterized,
that the pressure roller (52) is driven.
dadurch gekennzeichnet,
dass die Faserstoffbahn (22) der Aufwickeleinrichtung (50) mittels eines Siebbandes zugeführt ist.Device according to one of the preceding claims,
characterized,
in that the fibrous web (22) is fed to the take-up device (50) by means of a sieve belt.
dadurch gekennzeichnet,
dass die Faserstoffbahn (22) in einer Blattbildungszone auf dem Strukturband (22) gebildet wird.Device according to one of the preceding claims,
characterized,
in that the fibrous web (22) is formed in a foliation zone on the structural band (22).
dadurch gekennzeichnet,
dass der Trockenzylinder durch einen Yankee-Zylinder (42) gebildet ist.Device according to one of the preceding claims,
characterized,
that the drying cylinder is formed by a Yankee cylinder (42).
dadurch gekennzeichnet,
dass die Presszone (26) auf der dem Stützband (28) benachbarten Seite durch eine zumindest im Wesentlichen glatte Oberfläche begrenzt ist.Device according to one of the preceding claims,
characterized,
that the pressing zone (26) is on the supporting belt (28) adjacent side bounded by an at least substantially smooth surface.
dadurch gekennzeichnet,
dass die die Presszone (26) auf der dem Stützband (28) benachbarten Seite begrenzende vorzugsweise glatte Oberfläche durch eine gekrümmte Oberfläche gebildet ist.Device according to one of the preceding claims,
characterized,
that the press zone (26) on the support band (28) adjacent side bordering preferably smooth surface is formed by a curved surface.
dadurch gekennzeichnet,
dass die die Presszone (26) auf der dem Stützband (28) benachbarten Seite begrenzende gekrümmte Oberfläche durch eine rotierende Walze (32) gebildet ist.Device according to claim 17,
characterized,
in that the curved surface delimiting the pressing zone (26) on the side adjacent to the support belt (28) is formed by a rotating roller (32).
dadurch gekennzeichnet,
dass Mittel (30, 32) zur Erzeugung eines Gasstromes im Bereich der Presszone (26) vorgesehen sind, der das Strukturband (18), die Faserstoffbahn (22) und das Stützband (28) durchströmt.Device according to one of the preceding claims,
characterized,
in that means (30, 32) for generating a gas stream in the region of the pressing zone (26) are provided, through which flows the structural band (18), the fibrous web (22) and the support band (28).
dadurch gekennzeichnet,
dass der Gasstrom zunächst das Strukturband (18), dann die Faserstoffbahn (22) und schließlich das Stützband (28) durchströmt.Device according to claim 19,
characterized,
that the gas flow first flows through the structure band (18), then the fibrous web (22) and finally the support band (28).
dadurch gekennzeichnet,
dass Mittel (30, 32) zur Erzeugung eines Luftstromes und/oder Mittel zur Erzeugung eines Dampfstromes vorgesehen sind.Device according to claim 19 or 20,
characterized,
in that means (30, 32) for generating an air stream and / or means for generating a vapor stream are provided.
dadurch gekennzeichnet,
dass die Mittel zur Erzeugung eines Gasstromes eine mit einer Saugzone (30) versehene rotierende Saugwalze (32) umfassen, die die Presszone (26) auf der dem Stützband (28) benachbarten Seite begrenzt.Device according to one of claims 19 to 21,
characterized,
in that the means for generating a gas stream comprise a rotating suction roll (32) provided with a suction zone (30) which delimits the pressing zone (26) on the side adjacent to the support band (28).
dadurch gekennzeichnet,
dass die Mittel zur Erzeugung eines Gasstromes einen ebenen oder gekrümmten Saugkasten umfassen, der die Presszone (26) auf der dem Stützband (28) benachbarten Seite begrenzt.Device according to one of claims 19 to 21,
characterized,
in that the means for generating a gas flow comprise a flat or curved suction box which delimits the pressing zone (26) on the side adjacent to the support belt (28).
dadurch gekennzeichnet,
dass die Mittel zur Erzeugung eines Gasstromes eine auf der Seite des permeablen Strukturbandes (18) angeordnete Überdruckhaube (58) umfassen.Device according to one of claims 19 to 23,
characterized,
that the means for generating a gas stream comprise one on the side of the permeable structured belt arranged (18) pressure hood (58).
dadurch gekennzeichnet,
dass das Strukturband (18), die Faserstoffbahn (22) und das Stützband (28) mittels eines unter Spannung stehenden Pressbandes (34) gegen die vorzugsweise glatte Oberfläche pressbar sind.Device according to one of the preceding claims,
characterized,
that the structural band (18), the fibrous web (22) and the support band (28) can be pressed against the preferably smooth surface by means of a press belt (34) under tension.
dadurch gekennzeichnet,
dass die vorzugsweise glatte, gekrümmte Oberfläche durch eine rotierende Walze (32) gebildet ist.Device according to claim 25,
characterized,
in that the preferably smooth, curved surface is formed by a rotating roller (32).
dadurch gekennzeichnet,
dass als Strukturband (18) ein strukturiertes Sieb vorgesehen ist.Device according to one of the preceding claims,
characterized,
in that a structured sieve is provided as the structural band (18).
dadurch gekennzeichnet,
dass als Strukturband (18) ein TAD-Sieb vorgesehen ist.Device according to one of the preceding claims,
characterized,
in that a TAD sieve is provided as the structural band (18).
dadurch gekennzeichnet,
dass als Stützband (28) ein Entwässerungsband, insbesondere Filz, vorgesehen ist.Device according to one of the preceding claims,
characterized,
that is provided as the supporting belt (28) a dewatering belt, in particular felt.
dadurch gekennzeichnet,
dass die relativ vertieften und die relativ erhöhten Bereich des Strukturbandes (18) derart ausgebildet und relativ zueinander angeordnet sind, dass maximal 35 % und vorzugsweise maximal 25 % des Strukturbandes (18) im Pressnip (44) gepresst werden.Device according to one of the preceding claims,
characterized,
in that the relatively recessed area and the relatively elevated area of the structural strip (18) are designed and arranged relative to one another such that a maximum of 35% and preferably at most 25% of the structural strip (18) is pressed in the press nip (44).
dadurch gekennzeichnet,
dass der am Trockenzylinder (42) vorgesehene Pressnip (44) durch einen Schuhpressnip gebildet ist.Device according to one of the preceding claims,
characterized,
that the drying cylinder provided (42) press nip (44) is formed by a shoe press nip.
dadurch gekennzeichnet,
dass die Faserstoffbahn (22) im Bereich des Pressnips (44) von dem Strukturband (18) auf die Oberfläche des Trockenzylinders (42) übertragen wird.Device according to one of the preceding claims,
characterized,
in that the fibrous web (22) in the region of the press nip (44) is transferred from the structural band (18) to the surface of the drying cylinder (42).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005046907A DE102005046907A1 (en) | 2005-09-30 | 2005-09-30 | Method and device for producing a tissue web |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1770210A1 true EP1770210A1 (en) | 2007-04-04 |
EP1770210B1 EP1770210B1 (en) | 2011-12-21 |
Family
ID=37420832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06114195A Not-in-force EP1770210B1 (en) | 2005-09-30 | 2006-05-19 | Method and device for manufacturing a tissue web |
Country Status (4)
Country | Link |
---|---|
US (1) | US7691230B2 (en) |
EP (1) | EP1770210B1 (en) |
AT (1) | ATE538244T1 (en) |
DE (1) | DE102005046907A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150129146A1 (en) * | 2013-11-14 | 2015-05-14 | Georgia-Pacific Consumer Products Lp | Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10326304A1 (en) * | 2003-06-11 | 2005-02-03 | Voith Fabrics Patent Gmbh | Method and device for producing a tissue web |
DE102004052157A1 (en) * | 2004-10-26 | 2006-04-27 | Voith Fabrics Patent Gmbh | Machine for producing a material web |
DE102005046903A1 (en) * | 2005-09-30 | 2007-04-05 | Voith Patent Gmbh | Method and device for producing a tissue web |
DE102005054510A1 (en) * | 2005-11-16 | 2007-05-24 | Voith Patent Gmbh | tissue machine |
AT505760B1 (en) * | 2008-01-09 | 2009-04-15 | Andritz Ag Maschf | DEVICE AND METHOD FOR TAPPING A MATERIAL RAIL |
DE102008041951A1 (en) * | 2008-09-10 | 2010-03-11 | Voith Patent Gmbh | Method of predicting the surface topography of tissue paper |
US8557085B1 (en) * | 2012-07-10 | 2013-10-15 | Pmt Italia S.P.A. | Dryer apparatus for drying a web |
US8968517B2 (en) | 2012-08-03 | 2015-03-03 | First Quality Tissue, Llc | Soft through air dried tissue |
JP6277654B2 (en) * | 2013-10-03 | 2018-02-14 | セイコーエプソン株式会社 | Sheet manufacturing equipment |
EP3142625A4 (en) | 2014-05-16 | 2017-12-20 | First Quality Tissue, LLC | Flushable wipe and method of forming the same |
WO2016077594A1 (en) | 2014-11-12 | 2016-05-19 | First Quality Tissue, Llc | Cannabis fiber, absorbent cellulosic structures containing cannabis fiber and methods of making the same |
WO2016086019A1 (en) | 2014-11-24 | 2016-06-02 | First Quality Tissue, Llc | Soft tissue produced using a structured fabric and energy efficient pressing |
US10099425B2 (en) | 2014-12-05 | 2018-10-16 | Structured I, Llc | Manufacturing process for papermaking belts using 3D printing technology |
US9719213B2 (en) * | 2014-12-05 | 2017-08-01 | First Quality Tissue, Llc | Towel with quality wet scrubbing properties at relatively low basis weight and an apparatus and method for producing same |
CN105735026B (en) * | 2014-12-11 | 2019-08-09 | 福伊特专利有限公司 | For manufacturing the machine of fibrous material web |
FI127336B (en) | 2014-12-17 | 2018-04-13 | Valmet Technologies Inc | Fiber web machine equipped with a smoothing cylinder |
US10544547B2 (en) | 2015-10-13 | 2020-01-28 | First Quality Tissue, Llc | Disposable towel produced with large volume surface depressions |
US10538882B2 (en) | 2015-10-13 | 2020-01-21 | Structured I, Llc | Disposable towel produced with large volume surface depressions |
CN109328166A (en) | 2015-10-14 | 2019-02-12 | 上品纸制品有限责任公司 | The system and method for being bundled product and forming bundle product |
WO2017139786A1 (en) | 2016-02-11 | 2017-08-17 | Structured I, Llc | Belt or fabric including polymeric layer for papermaking machine |
US20170314206A1 (en) | 2016-04-27 | 2017-11-02 | First Quality Tissue, Llc | Soft, low lint, through air dried tissue and method of forming the same |
MX2019002123A (en) | 2016-08-26 | 2019-08-16 | Method of producing absorbent structures with high wet strength, absorbency, and softness. | |
WO2018049390A1 (en) | 2016-09-12 | 2018-03-15 | Structured I, Llc | Former of water laid asset that utilizes a structured fabric as the outer wire |
US11583489B2 (en) | 2016-11-18 | 2023-02-21 | First Quality Tissue, Llc | Flushable wipe and method of forming the same |
US10619309B2 (en) | 2017-08-23 | 2020-04-14 | Structured I, Llc | Tissue product made using laser engraved structuring belt |
DE102018114748A1 (en) | 2018-06-20 | 2019-12-24 | Voith Patent Gmbh | Laminated paper machine clothing |
US11738927B2 (en) | 2018-06-21 | 2023-08-29 | First Quality Tissue, Llc | Bundled product and system and method for forming the same |
US11697538B2 (en) | 2018-06-21 | 2023-07-11 | First Quality Tissue, Llc | Bundled product and system and method for forming the same |
KR20230157297A (en) | 2020-12-17 | 2023-11-16 | 퍼스트 퀄리티 티슈, 엘엘씨 | Wet batch disposable absorbent structure with high wet strength and method of making the same |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4300981A (en) | 1979-11-13 | 1981-11-17 | The Procter & Gamble Company | Layered paper having a soft and smooth velutinous surface, and method of making such paper |
US5779860A (en) * | 1996-12-17 | 1998-07-14 | Kimberly-Clark Worldwide, Inc. | High-density absorbent structure |
US20020060036A1 (en) * | 2000-06-28 | 2002-05-23 | Metso Paper Karlstad Ab | Shortened layout from dryer to reel in tissue machine |
US20050167066A1 (en) | 2004-01-30 | 2005-08-04 | Jeffrey Herman | Apparatus for and process of material web formation on a structured fabric in a paper machine |
US20060167066A1 (en) | 2004-12-20 | 2006-07-27 | Genentech, Inc. | Pyrrolidine inhibitors of IAP |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4309246A (en) * | 1977-06-20 | 1982-01-05 | Crown Zellerbach Corporation | Papermaking apparatus and method |
US5690788A (en) * | 1994-10-11 | 1997-11-25 | James River Corporation Of Virginia | Biaxially undulatory tissue and creping process using undulatory blade |
US6187137B1 (en) * | 1997-10-31 | 2001-02-13 | Kimberly-Clark Worldwide, Inc. | Method of producing low density resilient webs |
US6368458B1 (en) * | 1998-03-19 | 2002-04-09 | Voith Sulzer Paper Technology North America, Inc. | Calender press for a paper-making machine with thermally compensated top and bottom rolls and low nip load |
US6183601B1 (en) * | 1999-02-03 | 2001-02-06 | Kimberly-Clark Worldwide, Inc. | Method of calendering a sheet material web carried by a fabric |
US6610173B1 (en) * | 2000-11-03 | 2003-08-26 | Kimberly-Clark Worldwide, Inc. | Three-dimensional tissue and methods for making the same |
US7351307B2 (en) * | 2004-01-30 | 2008-04-01 | Voith Paper Patent Gmbh | Method of dewatering a fibrous web with a press belt |
US20050167067A1 (en) * | 2004-01-30 | 2005-08-04 | Bob Crook | Dewatering fabric in a paper machine |
US7297233B2 (en) * | 2004-01-30 | 2007-11-20 | Voith Paper Patent Gmbh | Dewatering apparatus in a paper machine |
-
2005
- 2005-09-30 DE DE102005046907A patent/DE102005046907A1/en not_active Withdrawn
-
2006
- 2006-05-19 EP EP06114195A patent/EP1770210B1/en not_active Not-in-force
- 2006-05-19 AT AT06114195T patent/ATE538244T1/en active
- 2006-09-26 US US11/527,236 patent/US7691230B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4300981A (en) | 1979-11-13 | 1981-11-17 | The Procter & Gamble Company | Layered paper having a soft and smooth velutinous surface, and method of making such paper |
US5779860A (en) * | 1996-12-17 | 1998-07-14 | Kimberly-Clark Worldwide, Inc. | High-density absorbent structure |
US20020060036A1 (en) * | 2000-06-28 | 2002-05-23 | Metso Paper Karlstad Ab | Shortened layout from dryer to reel in tissue machine |
US20050167066A1 (en) | 2004-01-30 | 2005-08-04 | Jeffrey Herman | Apparatus for and process of material web formation on a structured fabric in a paper machine |
US20060167066A1 (en) | 2004-12-20 | 2006-07-27 | Genentech, Inc. | Pyrrolidine inhibitors of IAP |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150129146A1 (en) * | 2013-11-14 | 2015-05-14 | Georgia-Pacific Consumer Products Lp | Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
US9303363B2 (en) | 2013-11-14 | 2016-04-05 | Georgia-Pacific Consumer Products Lp | Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
US9404224B2 (en) * | 2013-11-14 | 2016-08-02 | Georgia-Pacific Consumer Products Lp | Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
US9574306B2 (en) | 2013-11-14 | 2017-02-21 | Georgia-Pacific Consumer Products Lp | Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
US9611591B2 (en) | 2013-11-14 | 2017-04-04 | Georgia-Pacific Consumer Products Lp | Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
US9915032B2 (en) | 2013-11-14 | 2018-03-13 | Gpcp Ip Holdings Llc | Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
US9957667B2 (en) | 2013-11-14 | 2018-05-01 | Gpcp Ip Holdings Llc | Absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
US9988766B2 (en) | 2013-11-14 | 2018-06-05 | Gpcp Ip Holdings Llc | Process of determining features of a papermaking fabric based on sizes and locations of knuckles and pockets in the fabric |
US10704203B2 (en) | 2013-11-14 | 2020-07-07 | Gpcp Ip Holdings Llc | Absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
Also Published As
Publication number | Publication date |
---|---|
US7691230B2 (en) | 2010-04-06 |
EP1770210B1 (en) | 2011-12-21 |
ATE538244T1 (en) | 2012-01-15 |
DE102005046907A1 (en) | 2007-04-12 |
US20070074837A1 (en) | 2007-04-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1770210B1 (en) | Method and device for manufacturing a tissue web | |
EP1770209B1 (en) | Method and device for producing a tissue web | |
EP1626122B1 (en) | Method and device for producing a fibre strip provided with a three-dimensional surface structure | |
EP1314817B1 (en) | Method and machine for manufacturing a fibrous web | |
EP1954877B1 (en) | Tissue machine | |
EP1925727A2 (en) | Machine for manufacturing tissue paper | |
EP1397553B1 (en) | Method and machine for the production of a fibre web | |
EP0857818B1 (en) | Machine to manufacture a fibrous web | |
EP1739228B1 (en) | Machine for manufacturing a fibrous web | |
EP1036880A1 (en) | Process and apparatus for making tissue paper and tissue paper made thereby | |
WO2004109011A2 (en) | Method and device for producing a web of tissue | |
EP0931876B1 (en) | Press section | |
AT521367B1 (en) | DEVICE AND METHOD FOR CONVERTING A STRIP OF A TRAIN | |
DE202004013598U1 (en) | Paper product and device for embossing a paper web | |
WO2003008706A1 (en) | Method and device for producing a web of fibrous fabric provided with a three-dimensional structure | |
WO2020211991A1 (en) | Device and method for transferring a strip of a web | |
DE102019121066A1 (en) | Device for the production of a multi-layer fibrous web | |
DE102019124680A1 (en) | Device and method for producing a fibrous web | |
EP1777340A1 (en) | Pressing arrangement | |
EP0764738A1 (en) | Process and machine for making fibrous webs | |
EP1743974A1 (en) | Press section | |
EP1770204A2 (en) | Pressing arrangement |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
AKX | Designation fees paid | ||
17P | Request for examination filed |
Effective date: 20080104 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
17Q | First examination report despatched |
Effective date: 20080207 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHERB, THOMAS Inventor name: OYAKAWA, DAVILO Inventor name: SILVA, LUIZ CARLOS Inventor name: BERARDI, ROGERIO |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 538244 Country of ref document: AT Kind code of ref document: T Effective date: 20120115 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502006010736 Country of ref document: DE Effective date: 20120216 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20111221 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20111221 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120322 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120321 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120421 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120423 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 |
|
26N | No opposition filed |
Effective date: 20120924 |
|
BERE | Be: lapsed |
Owner name: VOITH PATENT G.M.B.H. Effective date: 20120531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502006010736 Country of ref document: DE Effective date: 20120924 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20120519 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20130131 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20120511 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120519 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120401 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20130522 Year of fee payment: 8 Ref country code: SE Payment date: 20130521 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20130513 Year of fee payment: 8 Ref country code: IT Payment date: 20130530 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111221 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120519 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060519 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502006010736 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 538244 Country of ref document: AT Kind code of ref document: T Effective date: 20140519 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140520 Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140519 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502006010736 Country of ref document: DE Effective date: 20141202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140519 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141202 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140519 |