EP1013820B1 - Tissu composite pour la fabrication du papier comportant au moins trois couches - Google Patents

Tissu composite pour la fabrication du papier comportant au moins trois couches Download PDF

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Publication number
EP1013820B1
EP1013820B1 EP99124251A EP99124251A EP1013820B1 EP 1013820 B1 EP1013820 B1 EP 1013820B1 EP 99124251 A EP99124251 A EP 99124251A EP 99124251 A EP99124251 A EP 99124251A EP 1013820 B1 EP1013820 B1 EP 1013820B1
Authority
EP
European Patent Office
Prior art keywords
threads
weft
fabric
layer
additional
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.)
Expired - Lifetime
Application number
EP99124251A
Other languages
German (de)
English (en)
Other versions
EP1013820A3 (fr
EP1013820A2 (fr
Inventor
Arved H. Westerkamp
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.)
Voith Fabrics Patent GmbH
Original Assignee
Voith Fabrics Heidenheim GmbH and Co KG
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 Voith Fabrics Heidenheim GmbH and Co KG filed Critical Voith Fabrics Heidenheim GmbH and Co KG
Publication of EP1013820A2 publication Critical patent/EP1013820A2/fr
Publication of EP1013820A3 publication Critical patent/EP1013820A3/fr
Application granted granted Critical
Publication of EP1013820B1 publication Critical patent/EP1013820B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D21F1/0045—Triple layer fabrics

Definitions

  • the invention relates to a three- or multi-layer paper machine wire in the form of a composite fabric for the wet end a paper machine according to the preamble of the claim 1.
  • Such paper machine screens have the task of a fiber suspension to drain and thereby a wet-strength paper web to form, which on the paper machine screen to the press section a paper machine is transported.
  • the paper machine screen has the shape of an endless belt, that in the roller system or drainage system of the wet end of the Paper machine rotates at high speed.
  • paper machine screens are those mentioned at the beginning kind known. Such screens point to the paper side a very fine fabric, hereinafter referred to as the upper fabric, preferably in plain weave, and on her to the paper machine facing the wear fabric, below the lower fabric called, which in its warp and weft count preferably corresponds to that of the upper fabric.
  • the Bottom fabric is mostly twill or satin weave.
  • EP 0 694 637 A1 describes a paper machine clothing, which has at least three layers of wefts over one only system of warp threads are tied together and one form three-layer fabric structure.
  • the weft threads of the middle one Weft positions are not interwoven with other positions and only serve to give the fabric stability.
  • the weft threads the middle layer are made of a material that a Has at least 10% thermal shrinkage at 180 ° Celsius.
  • EP 0 590 288 A1 relates to a multi-layer press screen, the an upper fabric and a lower fabric with an intermediate layer of Has weft threads, all of which have additional weft warps are bound together.
  • the invention has for its object a paper machine screen to create the type mentioned above, its transverse stability is improved.
  • the paper machine screen thus has a larger volume, which is in Dependence on the construction of the forming section of the paper machine positive on the Formation of the paper affects. A larger volume can also increase the Permeability of the sieve result, so that the drainage of the fiber suspension with such a sieve progresses more quickly.
  • the shot position of the at least one Upper fabric and the weft position of the at least one lower fabric due to the additional Weft group separated.
  • the upper and lower tissues stand out from each other from what, in addition to increasing the volume of the paper machine wire and the Rigidity of the sieve leads.
  • the threads of the additional ones change Weft group and that between the at least one upper fabric and the at least a woven-in binding thread from each other.
  • the additional weft group This also enables improved protection of the woven binding threads in Transverse direction, since the upper and lower fabrics are no longer exclusively due to the binding binding thread, but also through the additional weft thread group are separated. Furthermore, the positional stability of the binding threads in the longitudinal or running direction is thereby of the sieve improved.
  • the threads of the weft layer of the at least one upper fabric are advantageously located, the threads the weft position of the at least one lower fabric and the threads of the additional ones Weft group in a common, approximately vertical plane, resulting in a clear separation between the threads of the weft layer of the upper fabric and those of the Weft position of the lower fabric results.
  • Threads of the additional weft thread group offset in the vertical direction to the threads of the Weft layer of the at least one upper fabric and the threads of the weft layer of the at least arranged a lower fabric.
  • Fig. 1 is part of a three-layer paper machine screen 41 in the form of a Composite fabric for the wet end of a paper machine, not shown in detail, in longitudinal section, also called a weft cut, shown according to a first embodiment.
  • Fig. 2 shows one another longitudinal section through the paper machine screen 41 according to the first embodiment.
  • the three-layer paper machine screen 41 according to FIG. 1 has a paper-side upper fabric 42 and a running-side lower fabric 43 on the upper fabric 42 consists of the weft layer 44 with the weft threads 1, 5, 9, 13, 17, 21, 25, 29, 33, 37 and a series of warp threads, of which in Fig. 1 only one, namely the warp thread 45, is shown.
  • the lower fabric 43 consists of the weft layer 46 with the weft threads 3, 7, 11, 15, 19, 23, 27, 31, 35, 39 and from a series of warp threads, of which only one in FIG. 2, namely the Warp thread 47 is shown.
  • the invention is between the weft layer 44 of the upper fabric 42 and the weft layer 46 of the Lower fabric 43 woven an additional weft group 50 so that the above Weft layers 44, 46 are separated from one another by the additional weft thread group 50, such as this can be seen from FIGS. 1 and 2.
  • the additional weft thread group 50 points in FIG. 1 and 2 the threads 2, 6, 10, 14, 18, 22, 26, 30, 34, 38 on. According to FIGS. 1 and 2 alternate in the middle layer 51 of the paper machine screen 41 the threads of the additional Weft thread group 50 and those woven into the upper fabric 42 and the lower fabric 43 Twine off each other.
  • all the warp threads of the Upper fabric 42 (only the warp thread 45 is shown in FIG. 1) over the threads of the additional weft group 50 and all the warp threads of the lower fabric 43 (in Fig. 2 is only the warp thread 47 is shown) under the threads of the additional weft thread group 50.
  • the warp thread 45 of the upper fabric 42 is in the middle layer 51 in this phase only woven with the binding threads 16 and 36.
  • the binding phase shown in FIG. 2 is the warp thread 47 of the lower fabric 43 in the middle Layer 51 in this binding phase is only woven with the binding threads 12 and 32.
  • the reference numerals for the threads 1 - running transverse to the running direction (see arrow A in FIG. 1) 40 were assigned according to the thread sequence in the selected embodiment. It's clear, that a thread sequence can also be selected, which of that shown in FIGS. 1 and 2 Thread sequence deviates. 1 and 2 it can also be seen that at least the threads of the Weft layer 44 of the upper fabric 2 has a smaller diameter than the threads of the weft layer 46 of the lower fabric 43.
  • the diameter of the threads 2, 6, 10, ..., 34; 38 of the additional weft group 50 is about 0.13-0.25 mm.
  • the diameter of the Binding threads 4, 8, ..., 36, 40 are approximately between 0.10 and 0.20 mm.
  • FIGS 3 and 4 A second exemplary embodiment of a paper machine screen 41 according to the invention is shown in FIGS 3 and 4, in which the upper fabric 42 has a weft layer 44 with the weft threads 1, 4, 7, 10, 13, 16, 19, 22, 25, 28 and a series of warp threads, of which in Fig. 3 only the warp thread 45 is shown.
  • the lower fabric 43 has a weft layer 46 Weft threads 2, 5, 8, 11, 14, 17, 20, 23, 26, 29 and a series of warp threads, of which in Fig. 4 only the warp thread 47 is shown.
  • the middle layer 51 shows the additional one Weft thread group 50 with the additional threads 3, 9, 15, 21, 27 and the binding threads 6, 12, 18, 24, 30. Also in this embodiment, the threads of the additional change Weft thread group 50 and those woven into the upper fabric 42 and the lower fabric 43 Twine off each other.
  • the threads are the additional ones Weft group in the second embodiment shown in Figs. 3 and 4 in vertical direction offset to the threads of the weft layer 44 of the upper fabric 42 and the threads the weft layer 46 of the lower fabric 43 is arranged.
  • This can be exemplified by the thread 1 the weft layer 44 of the upper fabric 42 and the thread 2 of the weft layer 46 of the lower fabric 43, which lie in a common vertical plane, and the thread 3 of the additional Detect weft group 50, which with the aforementioned common vertical plane the threads 1 and 2 are not aligned, that is to say aligned to this plane.
  • the threads of additional weft thread group 50 and the binding threads 6, 12, 18, 24, 30 are in vertical direction in each case between those formed by the threads of the weft layers 44, 46 vertical levels.
  • the paper machine screen 41 according to the second, shown in FIGS. 3 and 4 The embodiment has a higher open volume than the paper machine screen 41 according to the first, shown in FIGS. 1 and 2.
  • the threads of the additional weft group 50 can also be arranged in any other position as long as they are between top and Sub-tissues are placed.
  • the course of the warp threads 45, 47 can also be varied can be varied and is therefore only exemplary in the embodiments shown specified
  • the paper machine screen according to the invention can also have more than three layers have.
  • the cross stability of the screen is especially improved in twin-wire machines, so that the one produced with such a screen Paper meets high demands.
  • the cross stability of the screen is especially improved in twin-wire machines, so that the one produced with such a screen Paper meets high demands.

Landscapes

  • Paper (AREA)
  • Woven Fabrics (AREA)

Claims (4)

  1. Toile de machine à papier présentant au moins trois couches et prenant la forme d'un tissu composite pour la partie humide d'une machine à papier, avec au moins un tissu supérieur (42) côté papier, au moins un tissu inférieur (43) côté machine et avec des fils de liage (4, 8, 12, ..., 36, 40 ; 6, 12, 18, 24, 30), dirigés perpendiculairement par rapport au sens machine de la toile, à l'aide desquels les tissus supérieur et inférieur (42, 43) sont entretissés, un groupe de fils de trame (50) supplémentaire étant entrelacé entre la couche de trame (44) de l'au moins un tissu supérieur (42) et la couche de trame (46) de l'au moins un tissu inférieur (43), caractérisée en ce que les fils (2, 6, 10, ..., 34, 38) du groupe de fils de trame (50) supplémentaire et les fils de liage (4, 8, 12, ..., 36, 40) entrelacés entre l'au moins un tissu supérieur (42) et l'au moins un tissu inférieur (43) changent alternativement, et en ce que tous les fils de chaíne (45) du tissu supérieur (42) passent au-dessus des fils du groupe de fils de trame (50) supplémentaire et que tous les fils de chaíne (47) du tissu inférieur (43) passent en dessous des fils du groupe de fils de trame (50) supplémentaire.
  2. Toile de machine à papier selon la revendication 1, caractérisée en ce que la couche de trame (44) de l'au moins un tissu supérieur (42) et la couche de trame (46) de l'au moins un tissu inférieur (43) sont séparées l'une de l'autre par le groupe de fils de trame (50) supplémentaire.
  3. Toile de machine à papier selon la revendication 1 ou 2, caractérisée en ce que les fils de la couche de trame (44) de l'au moins un tissu supérieur (42), les fils de la couche de trame (46) de l'au moins un tissu inférieur (43) et les fils du groupe de fils de trame (50) supplémentaire reposent dans un plan commun approximativement vertical.
  4. Toile de machine à papier selon la revendication 1 ou 2, caractérisée en ce que les fils du groupe de fils de trame (50) supplémentaire sont agencés dans la direction verticale de façon à être décalés par rapport aux fils de la couche de trame (44) de l'au moins un tissu supérieur (42) et par rapport aux fils de la couche de trame (46) d'au moins un tissu inférieur (43).
EP99124251A 1998-12-22 1999-12-04 Tissu composite pour la fabrication du papier comportant au moins trois couches Expired - Lifetime EP1013820B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19859582A DE19859582A1 (de) 1998-12-22 1998-12-22 Drei- oder mehrlagiges Papiermaschinensieb in Form eines Verbundgewebes
DE19859582 1998-12-22

Publications (3)

Publication Number Publication Date
EP1013820A2 EP1013820A2 (fr) 2000-06-28
EP1013820A3 EP1013820A3 (fr) 2001-02-07
EP1013820B1 true EP1013820B1 (fr) 2004-03-03

Family

ID=7892329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124251A Expired - Lifetime EP1013820B1 (fr) 1998-12-22 1999-12-04 Tissu composite pour la fabrication du papier comportant au moins trois couches

Country Status (6)

Country Link
US (1) US6530398B1 (fr)
EP (1) EP1013820B1 (fr)
JP (1) JP2000192385A (fr)
AT (1) ATE261016T1 (fr)
CA (1) CA2293102A1 (fr)
DE (2) DE19859582A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7008512B2 (en) * 2002-11-21 2006-03-07 Albany International Corp. Fabric with three vertically stacked wefts with twinned forming wefts
US7604025B2 (en) 2006-12-22 2009-10-20 Voith Patent Gmbh Forming fabric having offset binding warps
US7743795B2 (en) * 2006-12-22 2010-06-29 Voith Patent Gmbh Forming fabric having binding weft yarns
US7879193B2 (en) 2007-09-06 2011-02-01 Voith Patent Gmbh Structured forming fabric and method
US7879195B2 (en) * 2007-09-06 2011-02-01 Voith Patent Gmbh Structured forming fabric and method
US7879194B2 (en) * 2007-09-06 2011-02-01 Voith Patent Gmbh Structured forming fabric and method
US7861747B2 (en) * 2008-02-19 2011-01-04 Voith Patent Gmbh Forming fabric having exchanging and/or binding warp yarns
US7878224B2 (en) * 2008-02-19 2011-02-01 Voith Patent Gmbh Forming fabric having binding warp yarns
CA2622653A1 (fr) * 2008-02-22 2009-08-22 Roger Danby Tissu de filtration industriel a double enveloppe et triple trame
US8002950B2 (en) * 2008-06-11 2011-08-23 Voith Patent Gmbh Structured fabric for papermaking and method
US10858766B2 (en) * 2013-07-31 2020-12-08 Nippon Filcon Co., Ltd. Industrial fabric

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259394A (en) 1979-09-26 1981-03-31 Huyck Corporation Papermaking fabrics with enhanced dimensional stability
US4467839A (en) 1981-04-28 1984-08-28 Scapa Inc. Papermakers fabric using differential melt yarns
AT393521B (de) * 1990-05-08 1991-11-11 Hutter & Schrantz Ag Gewebe aus kunststoff-monofilamenten fuer den einsatz als entwaesserungssieb einer papiermaschine
US5713396A (en) * 1990-06-06 1998-02-03 Asten, Inc. Papermakers fabric with stacked machine and cross machine direction yarns
DE4229828C2 (de) * 1992-09-07 1996-07-04 Kufferath Andreas Gmbh Papiermaschinensieb in Form eines Verbundgewebes
DE4232319A1 (de) * 1992-09-26 1994-03-31 Franz F Kufferath Mehrlagiges Pressensieb für Naßpressen einer Papiermaschine
AT400854B (de) * 1994-07-01 1996-04-25 Hutter & Schrantz Papiermaschi Gewebe zum einsatz als papiermaschinenbespannung
AT403486B (de) * 1995-12-19 1998-02-25 Hutter & Schrantz Papiermaschi Technisches gewebe für den einsatz in papiermaschinen
US6158478A (en) * 1998-04-14 2000-12-12 Astenjohnson, Inc. Wear resistant design for high temperature papermachine applications

Also Published As

Publication number Publication date
EP1013820A3 (fr) 2001-02-07
US6530398B1 (en) 2003-03-11
JP2000192385A (ja) 2000-07-11
DE19859582A1 (de) 2000-06-29
DE59908729D1 (de) 2004-04-08
ATE261016T1 (de) 2004-03-15
CA2293102A1 (fr) 2000-06-22
EP1013820A2 (fr) 2000-06-28

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