EP2004903B1 - Cote superieur, notamment cote papier, pour une toile de machine a papier ainsi que toile de machine a papier - Google Patents

Cote superieur, notamment cote papier, pour une toile de machine a papier ainsi que toile de machine a papier Download PDF

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Publication number
EP2004903B1
EP2004903B1 EP06841046A EP06841046A EP2004903B1 EP 2004903 B1 EP2004903 B1 EP 2004903B1 EP 06841046 A EP06841046 A EP 06841046A EP 06841046 A EP06841046 A EP 06841046A EP 2004903 B1 EP2004903 B1 EP 2004903B1
Authority
EP
European Patent Office
Prior art keywords
threads
longitudinal
transverse
thread
fabric
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.)
Active
Application number
EP06841046A
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German (de)
English (en)
Other versions
EP2004903A1 (fr
Inventor
Wolfgang Heger
Klaus Fichter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz Technology and Asset Management GmbH
Original Assignee
Andritz Technology and Asset Management GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Andritz Technology and Asset Management GmbH filed Critical Andritz Technology and Asset Management GmbH
Priority to PL06841046T priority Critical patent/PL2004903T3/pl
Publication of EP2004903A1 publication Critical patent/EP2004903A1/fr
Application granted granted Critical
Publication of EP2004903B1 publication Critical patent/EP2004903B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths

Definitions

  • the invention relates to the construction of an upper side, in particular paper side for a multi-layered papermaking fabric and a pertinent papermaking fabric, in particular provided for the use of a wet end in a paper machine.
  • the formation of the paper sheet is carried out depending on the type of machine on one or between two paper machine screens.
  • a suspension consisting of about 1% of fiber or excipients and 99% water is added uniformly to the papermaking screen and the solid constituents contained are separated from the water by a filtration process.
  • the use of various dewatering elements until the end of the wet end achieves a solids content or dry content of 20 to 22%.
  • the paper thus produced is already so strong that it can be transferred to the press section and dried further.
  • the technology for carrying out this filtration process has been improved so much that at speeds of 2,000 m / min and more, significantly less than one second is needed.
  • the sheet forming screens have a significant influence on the basis weight and thickness profile, the fiber retention as well as the visible in the paper screen marking.
  • the quality requirements are high. The pertinent quality requirements are opposed by the fact that increasingly inferior raw materials such as waste paper are used and that one tries by lowering the weight per unit area to save raw materials and thus costs.
  • the so-called two-ply mesh fabrics were developed, which are characterized by a longitudinal thread system with at least two transverse thread systems, wherein at least one transverse thread system is woven only on the paper side and the second exclusively on the machine side.
  • Some embodiments of pertinent sheeting screens can be found, inter alia, in the following patent documents: EP 0 186 406 A3 . DE 31 43 433 A . DE 25 40 490 B2 . DE 22 63 476 B2 . DE 38 17 144 A1 . DE 38 01 051 A1 . DE 39 10 019 A1 as well as in the DE 41 07 633 C2 ,
  • the pertinent three-ply composite fabrics consist of at least two separate layers of fabric, of which the upper is characterized by the plain weave and which is suitably connected to the other layers of fabric.
  • To connect the layers together in the known solutions serve separate binding threads, which can form both longitudinal threads and transverse yarns.
  • the pertinent compound has also been prepared by incorporating longitudinal and transverse thread systems of one fabric into the other fabric by transferring said threads from one layer of fabric to the next, and vice versa.
  • the thickness of the paper machine wire increases considerably, as a result of which more water can be stored in the tissue and the drainage capacity is reduced to that extent.
  • Another disadvantage of the three-ply composite fabrics relates to the ply compound.
  • the individual layers of fabric connected to one another via binding threads are frequently subjected to bending during travel in the paper machine, whereby the one layer undergoes an extension relative to a neutral phase in the center of the screen, wherein at the same time the fabric layer opposite the neutral phase is compressed , It then comes regularly to a relaxation of the tissue connection, which can lead to the position shift in the advanced stage with occurring in extreme cases separation of the fabric layers, which leads to the becoming unusable of the papermaking fabric.
  • GB 2 391 557 A discloses a top consisting of a plurality of longitudinal threads interwoven with a plurality of transverse threads, with longitudinal and transverse repeats formed, the transverse thread repeat containing six times as many threads as the longitudinal thread repeat.
  • the present invention seeks to further improve the known solutions that a top or paper side of a papermaking fabric is formed, which realizes the advantages of a plain weave and yet a simple compact and robust structure for the tissue together the papermaker's fabric for which the fabric is used is reached.
  • a passing-de Task solves a top, in particular paper side, with the features of claim 1 and a papermaking machine with the features of claim 5.
  • the top or paper side consists of a plurality of longitudinal threads, which are interwoven with a plurality of transverse threads and thereby rapports in the longitudinal and transverse directions, wherein the Querfadenrapport three times as many As with the longitudinal thread repeat and the longitudinal thread repeat, threads contain at least three threads and the transverse thread repeat is at least nine, all longitudinal threads alternatingly extending over three transverse threads and under three transverse threads and then under the remaining transverse threads of the transverse thread repeat, and two directly adjacent longitudinal threads extending longitudinally at least three transverse threads are shifted against each other.
  • the stated object is also achieved by a papermaking machine with the features of claim 5.
  • the top according to the invention is designed to approximate the well-known plain weave and thus allows the production of mark-free paper. Nevertheless, a high drainage can be achieved by the special design of the top and, if one provides the top with correspondingly suitable further layers of fabric on the bottom, a compact and robust construction is achieved, which counteracts the unwanted layer separation.
  • the claimed top or paper side can be obtained inexpensively on conventional weaving devices, so that it is possible to dispense with special cost-intensive machine devices.
  • the use of at least three machine direction yarns involves the incorporation of additional machine side cross direction yarns possible and thus achieved in terms of an ideal plain weave high uniformity for the top or top fabric layer of a papermaking fabric.
  • the claimed binding principle can be extended to almost any number of longitudinal threads in the repeat and is readily feasible for three, five and six longitudinal threads within a repeat.
  • the more longitudinal threads are present in the repeat the more shifts the length ratio of longitudinal thread to cross-direction yarn on the upper side in the direction of cross-direction yarn.
  • the binding is getting wider, which is fundamentally detrimental to the uniformity of the paper side, but it causes an ever better support for the paper fibers emerging mainly longitudinally from the headbox of the paper machine.
  • the upper side can be adapted to the circumstances in this simple way.
  • the upper side of a heat-setting is supplied, resulting in a longitudinal stretching and a transformation of the fabric structure, in which the course of the longitudinal threads in the area in which they bind with the upper transverse threads, no longer strictly vertical or in the longitudinal direction, but is slightly diagonally oriented.
  • the integration of the machine-side transverse threads ie the lower fabric with the upper fabric or the upper side can be done in many ways.
  • the ratio of three upper transverse threads to two lower transverse threads is selected.
  • the slope of the lower fabric is preferably two.
  • the subject matter of the invention relates to a multi-ply papermachine fabric having a paper side which, in an approximation of the well-known plain weave (cf. Fig. 6 ), but by the use of a plurality of machine direction yarns to allow the integration of additional machine-side cross direction yarns.
  • the Fig. 4 shows the pertinent bonding principle based on four different longitudinal thread reports.
  • the machine direction threads are represented by columns and the cross direction threads by lines. Furthermore, crossing points at which the respective longitudinal thread runs over an assignable transverse thread are marked by a cross.
  • the solution according to the invention is applied to a longitudinal thread repeat of three threads 21 to 23.
  • the Querfadenrapport has a length of nine threads 1 to 9, wherein the first longitudinal thread 21 alternately binds with the shots 1 to 6, with respect to the shots 1, 3 and 5 and below with respect to the shots 2, 4 and 6. Thereafter, the longitudinal thread remains below the shots 7 to 9.
  • the directly to the right of adjacent longitudinal thread 22 has the same course; but moved up by three transverse threads. The above missing shots are added below the starting point. This shift is commonly referred to by the term "slope".
  • the longitudinal thread 22 thus begins at the transverse thread 4 and then runs like the longitudinal thread 21st
  • Fig. 4b shows a preferred embodiment of the solution according to the invention with a longitudinal thread repeat of four threads 21 to 24.
  • the Querfadenrapport thus results in twelve threads 1 to 12 and thus to a length which is three times as long as the longitudinal thread repeat.
  • the first six shots 1 to 6 by the longitudinal thread 21 alternately about 1, 3 and 5 and including 2, 4 and 6 are involved.
  • the remaining shots 7 to 12 remain below the longitudinal thread 21. Comparable arrangements result for the further longitudinal threads 22, 23 and 24.
  • the schematically woven surface corresponding to the binding cartridge after the Fig. 4b ) is in Fig. 7 ,
  • the floating lengths of the longitudinal and transverse threads 104 and 107 can be displayed the same. Only the mesh width 106 is different.
  • This binding principle can be extended to almost any number of longitudinal threads in the repeat, which in the FIGS. 4a), 4c) and 4d ) is shown by way of example for three, five and six longitudinal threads.
  • the more longitudinal threads are present in the repeat the more shifts the length ratio of longitudinal thread to cross-direction yarn on the top in the direction of cross-direction thread.
  • the upper side can then be easily adapted to the circumstances.
  • the first longitudinal thread 21 binds alternately with the first six transverse threads 1 to 6 above and below and then extends only below the remaining transverse threads 7 to 12.
  • the next longitudinal threads 22, 23 and 24 rise within the repeat by three transverse threads, in this case right above.
  • a slope to the left is possible in principle, which would then result in a mirrored image of the surface (not shown).
  • Fig. 5 there is shown the use of the surface according to the invention in a double-layered sheet forming wire as a papermaking wire, wherein the longitudinal threads are shown cut in their course and the transverse threads.
  • the region of the longitudinal threads, which runs below the upper transverse threads can be used to incorporate lower transverse threads. This refers to the area that is located at the longitudinal thread 21 below the transverse threads 6 to 12 or 6 'to 12'.
  • the surface used here corresponds to the one in Fig. 1 shown with a longitudinal thread repeat of four threads and, accordingly, a Querfadenrapport of twelve threads.
  • the transverse thread number was chosen in the ratio of three upper transverse threads to two lower transverse threads. At the given slope of the upper fabric of three, the slope for the lower fabric is two. Thus, both the ratios of the transverse thread numbers and the pitch between the upper and lower fabric are the same, which has a favorable effect on the overall construction.
  • the embodiment of the Fig. 5 is the Fleet length of the lower transverse threads twice as long designed as the longitudinal thread repeat of the upper fabric, so a total of eight threads included.
  • the surface of the invention can thus be used as a paper page for a variety of different machine pages and thus sub-fabrics.

Landscapes

  • Paper (AREA)
  • Woven Fabrics (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Mobile Radio Communication Systems (AREA)

Claims (9)

  1. Face supérieure, en particulier face papier, pour une toile à plusieurs couches de fabrication de papier, prévue en particulier pour être utilisée dans une partie humide d'une machine à papier, laquelle est formée par une pluralité de fils de chaîne (21, 22, 23, ...), qui sont tissés avec une pluralité de fils de trame (1, 2, 3, ...) et forment, à cette occasion, des rapports d'armure dans le sens longitudinal et le sens transversal, le rapport d'armure des fils de trame contenant trois fois plus de fils que le rapport d'armure des fils de chaîne, le rapport d'armure des fils de chaîne étant formé par au moins trois fils de chaîne (21, 22, 23) et le rapport d'armure des fils de trame étant formé, par conséquence, par au moins neuf fils de trame (1, 2, 3, ..., 9), tous les fils de chaîne s'étendant en alternance au-dessus de trois fils de trame (1, 3, 5) et au-dessous de trois fils de trame (2, 4, 6) et ensuite au-dessous des fils de trame (7, 8, 9, ...) restants du rapport d'armure des fils de trame, et deux fils de chaîne directement adjacents (21 et 22, 22 et 23, 23 et 24, ...) étant décalés l'un par rapport à l'autre dans le sens longitudinal de la valeur d'au moins trois fils de trame.
  2. Face supérieure selon la revendication 1, caractérisée en ce que le rapport d'armure des fils de chaîne est formé par quatre, cinq ou six fils de chaîne, et le rapport d'armure des fils de trame est formé, en conséquence, par douze, quinze ou dix-huit fils de trame.
  3. Face supérieure selon la revendication 1 ou 2, caractérisée en ce que la distance entre chacun des fils de trame (1, 2, 3, ...) d'un rapport d'armure de fils de trame est inférieure à 20 % du diamètre d'un fil de chaîne (21).
  4. Face supérieure selon l'une quelconque des revendications 1 à 3, caractérisée en ce que, après un étirement longitudinal lors du thermofixage, le tracé des fils est orienté différemment, de telle sorte que le tracé des fils de chaîne (21 à 24"') suit un tracé en diagonale dans les zones, dans lesquelles lesdits fils de chaîne sont liés avec les fils de trame supérieurs (1 à 5).
  5. Toile de machine à papier, caractérisée en ce qu'elle comporte une face supérieure selon l'une quelconque des revendications 1 à 4.
  6. Toile de machine à papier selon la revendication 5, caractérisée en ce qu'elle est réalisée en deux couches avec un tissu supérieur, formé par la face supérieure, et un tissu inférieur, sachant que l'on choisit un rapport de trois fils de trame supérieurs (1 à 12, 1' à 12') du tissu supérieur par rapport à deux fils de trame inférieurs (51 à 58, 59 à 66) du tissu inférieur.
  7. Toile de machine à papier selon la revendication 6, caractérisée en ce que le pas, c'est-à-dire le déplacement dans le sens longitudinal entre deux fils de chaîne directement adjacents, selon un nombre de fils de trame, est de l'ordre de deux dans le tissu inférieur et de trois dans le tissu supérieur.
  8. Toile de machine à papier selon la revendication 6 ou 7, caractérisée en ce que la longueur d'un flotté, formé par les fils de chaîne et passant au-dessus des fils de trame inférieurs (51 à 66), est deux fois plus longue que le rapport d'armure des fils de chaîne du tissu supérieur.
  9. Toile de machine à papier selon la revendication 8, caractérisée en ce que le rapport des fils de trame du tissu inférieur a une longueur choisie de manière à obtenir un flotté formé par les fils de chaîne et passant au-dessus de huit fils de trame inférieurs (51 à 66).
EP06841046A 2006-04-08 2006-12-20 Cote superieur, notamment cote papier, pour une toile de machine a papier ainsi que toile de machine a papier Active EP2004903B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06841046T PL2004903T3 (pl) 2006-04-08 2006-12-20 Górna strona, zwłaszcza strona zwrócona do papieru, sita do maszyny papierniczej i sito do maszyny papierniczej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006016660A DE102006016660C5 (de) 2006-04-08 2006-04-08 Oberseite, insbesondere Papierseite, sowie Papiermaschinensieb
PCT/EP2006/012272 WO2007115591A1 (fr) 2006-04-08 2006-12-20 Cote superieur, notamment cote papier, ainsi que toile de machine a papier

Publications (2)

Publication Number Publication Date
EP2004903A1 EP2004903A1 (fr) 2008-12-24
EP2004903B1 true EP2004903B1 (fr) 2010-10-06

Family

ID=37828530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06841046A Active EP2004903B1 (fr) 2006-04-08 2006-12-20 Cote superieur, notamment cote papier, pour une toile de machine a papier ainsi que toile de machine a papier

Country Status (10)

Country Link
US (1) US7770606B2 (fr)
EP (1) EP2004903B1 (fr)
JP (1) JP4971423B2 (fr)
CN (2) CN101416450A (fr)
AT (1) ATE483853T1 (fr)
DE (2) DE102006016660C5 (fr)
ES (1) ES2353405T3 (fr)
PL (1) PL2004903T3 (fr)
PT (1) PT2004903E (fr)
WO (1) WO2007115591A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010017055A1 (de) * 2010-05-21 2011-11-24 Andritz Technology And Asset Management Gmbh Blattbildungssieb
CN102231283A (zh) * 2011-04-07 2011-11-02 清华大学 一种不挥发存储器的无线接口
DE102011054163B3 (de) * 2011-10-04 2013-02-28 ANDRITZ KUFFERATH GmbH Papiermaschinensieb

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE366353B (fr) * 1972-09-01 1974-04-22 Nordiska Maskinfilt Ab
SE385486B (sv) * 1974-10-10 1976-07-05 Nordiska Maskinfilt Ab Formeringsvira for pappers-, cellulosa- eller liknande maskiner samt sett att framstella densamma
SE420852B (sv) * 1978-06-12 1981-11-02 Nordiskafilt Ab Formeringsvira
JPS5512863A (en) * 1978-07-13 1980-01-29 Nippon Filcon Kk Synthetic resin net for paper making
NZ191731A (en) * 1978-10-23 1982-11-23 Jwi Ltd Duplex forming fabric for papermaking
SE430425C (sv) * 1981-06-23 1986-09-19 Nordiskafilt Ab Formeringsvira for pappers-, cellulosa- eller liknande maskiner
DE3143433A1 (de) * 1981-11-02 1983-05-11 Hutter & Schrantz Siebtechnik GmbH, Wien "doppellagiges gewebe fuer papiermaschinensiebe"
DE3224187C2 (de) * 1982-06-29 1989-01-12 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Verband-Gewebe als Bespannung für den Blattbildungsbereich einer Papiermaschine
DE3318985A1 (de) * 1983-05-25 1984-11-29 Fa. F. Oberdorfer, 7920 Heidenheim Papiermaschinensieb mit zwei uebereinander liegenden gewebelagen
US4642261A (en) * 1984-12-21 1987-02-10 Unaform Inc. Papermakers fabric having a tight bottom weft geometry
DE3801051A1 (de) * 1988-01-15 1989-07-27 Wangner Gmbh Co Kg Hermann Doppellagige bespannung fuer den blattbildungsbereich einer papiermaschine
DE3817144A1 (de) * 1988-05-19 1989-11-30 Wangner Gmbh Co Kg Hermann Doppellagige bespannung fuer den blattbildungsbereich einer papiermaschine
DE3910019A1 (de) * 1989-03-28 1990-10-04 Kufferath Andreas Gmbh Mehrlagiges papiermaschinensieb
FI85605C (fi) * 1990-06-15 1994-06-28 Tamfelt Oy Ab Tvaoskiktad pappersmaskinsduk
US5238536A (en) * 1991-06-26 1993-08-24 Huyck Licensco, Inc. Multilayer forming fabric
US5508094A (en) * 1991-12-18 1996-04-16 Albany International Corp. Press fabrics for paper machines
DE4229828C2 (de) * 1992-09-07 1996-07-04 Kufferath Andreas Gmbh Papiermaschinensieb in Form eines Verbundgewebes
US6039838A (en) * 1995-12-29 2000-03-21 Kimberly-Clark Worldwide, Inc. System for making absorbent paper products
US6427728B1 (en) * 1998-12-14 2002-08-06 The Goodyear Tire & Rubber Company Conveyor belting with reinforcing fabric formed from three interlaced layers
GB2351505A (en) * 1999-06-29 2001-01-03 Jwi Ltd Two-layer woven fabric for papermaking machines
DE19950391A1 (de) 1999-10-11 2001-04-12 Deutsche Telekom Ag Verfahren und Anordnung zur sicheren Abwicklung von E-Commerce Bezahlvorgängen über Kreditkarten
US6413377B1 (en) * 1999-11-09 2002-07-02 Astenjohnson, Inc. Double layer papermaking forming fabric
US6334467B1 (en) * 1999-12-08 2002-01-01 Astenjohnson, Inc. Forming fabric
US6585006B1 (en) * 2000-02-10 2003-07-01 Weavexx Corporation Papermaker's forming fabric with companion yarns
US6244306B1 (en) * 2000-05-26 2001-06-12 Weavexx Corporation Papermaker's forming fabric
FI108551B (fi) * 2000-06-26 2002-02-15 Tamfelt Oyj Abp Paperikonekudos
DE10030650C1 (de) * 2000-06-29 2002-05-29 Kufferath Andreas Gmbh Papiermaschinensieb
US6253796B1 (en) * 2000-07-28 2001-07-03 Weavexx Corporation Papermaker's forming fabric
DE10039736A1 (de) * 2000-08-16 2002-03-07 Kufferath Andreas Gmbh Verbundgewebe
US6379506B1 (en) * 2000-10-05 2002-04-30 Weavexx Corporation Auto-joinable triple layer papermaker's forming fabric
FI110131B (fi) * 2001-02-22 2002-11-29 Tamfelt Oyj Abp Paperikonekudos
GB2391557A (en) * 2002-08-06 2004-02-11 Richard Stone Forming fabric for papermaking

Also Published As

Publication number Publication date
DE102006016660C5 (de) 2009-09-03
ES2353405T3 (es) 2011-03-01
DE102006016660B3 (de) 2007-06-06
PL2004903T3 (pl) 2011-04-29
CN101416450A (zh) 2009-04-22
US7770606B2 (en) 2010-08-10
EP2004903A1 (fr) 2008-12-24
CN101415881B (zh) 2012-09-12
CN101415881A (zh) 2009-04-22
JP2009533560A (ja) 2009-09-17
PT2004903E (pt) 2010-12-23
US20090308482A1 (en) 2009-12-17
DE502006008050D1 (de) 2010-11-18
JP4971423B2 (ja) 2012-07-11
ATE483853T1 (de) 2010-10-15
WO2007115591A1 (fr) 2007-10-18

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