EP1985749A2 - Toile de formage - Google Patents

Toile de formage Download PDF

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Publication number
EP1985749A2
EP1985749A2 EP08154772A EP08154772A EP1985749A2 EP 1985749 A2 EP1985749 A2 EP 1985749A2 EP 08154772 A EP08154772 A EP 08154772A EP 08154772 A EP08154772 A EP 08154772A EP 1985749 A2 EP1985749 A2 EP 1985749A2
Authority
EP
European Patent Office
Prior art keywords
threads
binding
thread
transverse
fabric layer
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
Application number
EP08154772A
Other languages
German (de)
English (en)
Other versions
EP1985749B1 (fr
EP1985749A3 (fr
Inventor
Johann Boeck
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 Patent GmbH
Original Assignee
Voith Patent 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
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Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1985749A2 publication Critical patent/EP1985749A2/fr
Publication of EP1985749A3 publication Critical patent/EP1985749A3/fr
Application granted granted Critical
Publication of EP1985749B1 publication Critical patent/EP1985749B1/fr
Revoked legal-status Critical Current
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
    • D21F1/0045—Triple layer fabrics

Definitions

  • the invention relates to a papermaking wire, in particular a forming fabric, according to the preamble of patent claim 1.
  • Forming fabrics are used in the forming section of a paper machine.
  • a fiber suspension is applied from the headbox of the paper machine to a forming fabric or to two forming fabrics (Gap formers).
  • An object of the forming fabric here is to dewater the fiber suspension and form a fibrous web, as little as possible pulp fibers and fillers from the fiber suspension should be washed during the dewatering process.
  • the quality of the fibrous web formed is strongly influenced by the structure of the fibrous web-facing surface (paper side) of the forming fabric.
  • the life of the forming fabric is greatly affected by the structure of the paper machine facing surface (machine side) of the forming fabric.
  • binding threads are preferably an integral part of the paper-side weave structure (integral binding threads), whereby marking tendencies are reduced due to the connection of the stitching threads.
  • each binder yarn is usually interwoven with a plurality of upper warp yarns before crossing on the outside of the lower fabric layer a single lower warp yarn to form a tether and subsequently again with a plurality of upper warp yarns to interweave.
  • the binding threads often cover a large distance between the upper and lower layers of fabric, as a result of which the screens known from the prior art are often very thick and therefore carry a great deal of water.
  • the screens known from the prior art often provide a drainage behavior which varies greatly over the screen surface, which can lead to hydaulic marking of the paper formed on such screens.
  • binding threads between the fabric layers are often exposed to high wear in the known sieves, as they are often not sufficiently fixed between the fabric layers.
  • the paper machine wire according to the invention in particular forming fabric, has an upper and a lower fabric layer and binding threads for joining the two fabric layers.
  • the outside of the top fabric layer provides the web-contacting side of the fabric as the outside of the bottom fabric layer provides the machine-contacting side of the fabric.
  • binding threads in interweaving with the lower longitudinal threads form segments which extend over two or more consecutive lower longitudinal threads, the binding threads extend to a greater extent on the outside of the lower fabric layer and not between the fabric layers, whereby the thickness of the screen and the Significantly reduce associated disadvantages.
  • each binding thread weaves over at least two successive lower longitudinal threads is further achieved that each binding thread when weaving with the lower longitudinal threads "flat" on the outside of the lower fabric layer runs and through these flanking on both sides lower transverse threads, yes usually have a larger cross-section than the binding threads, is protected from wear, whereby the risk of Dellamination of the two fabric layers is significantly reduced.
  • each binding segment of the lower repeat is held firmly in position, whereby a relative movement of the binding threads between the lower and upper fabric layer is prevented and as a result of the inner wear of the screen is significantly reduced.
  • FIG. 1 shows a first embodiment of a forming machine according to the invention formed as a papermaking wire 100 in the transverse thread direction.
  • a rapport unit of the web structure of the screen 100 is shown.
  • Forming screen 100 has upper longitudinal threads 1,3,5,7,9,11,13,15,17 and 19 formed as warp threads, and lower longitudinal threads 2,4,6,8,10,12,14,16 formed as warp threads. 18 and 20.
  • the longitudinal threads extend perpendicularly from the plane of the drawing FIG. 1 ,
  • the forming fabric 100 has binding yarns i1 to i20, which are arranged in pairs of binding yarns i1 and i2, i3 and i4 to i19 and i20.
  • the forming fabric 100 has upper transverse threads T1 to T20 formed as weft threads and lower transverse threads B1 to B20 formed as weft threads.
  • Forming fabric 100 is the ratio of the number of pairs of binder yarns i1 and i2 to i19 to i20 and upper transverse yarns T1 to T20 together with the number of lower transverse yarns B1 to B2 3: 2.
  • the forming fabric 100 has an upper fabric layer 101 and a lower fabric layer 102, wherein the two fabric layers 101 and 102 are connected to one another by the binding threads i1 and i2 to i19 and i20.
  • the upper fabric layer is formed by the binding threads i1 to i20, by the upper transverse threads T1 to T20 and by the upper longitudinal threads 1,3,5,7 extending transversely to the binding threads i1 to i20 and the upper transverse threads T1 to T20 , 9,11,13,15,17 and 19 formed. It would also be conceivable to form the upper fabric layer only by upper longitudinal threads and with these interwoven binding threads.
  • the lower fabric layer 102 is formed by the binding threads i1 to i20, the lower transverse threads B1 to B2 and by the interwoven and extending transversely to these lower longitudinal threads 2,4,6,8,10,12,14,16,18 and 20 formed.
  • the binding threads of a pair are mutually exchangeable with upper longitudinal threads 1,3,5,7,9,11,13,15,17 and 19 and with lower longitudinal threads 2,4,6,8,10,12,14,16, As a result, when the first binding thread of the pair is woven with upper longitudinal threads, the second binding thread of the pair is interwoven with lower longitudinal threads and if the second binding thread of the pair is woven with upper longitudinal threads, the first binding thread of the pair is interwoven with lower longitudinal threads.
  • the weave pattern of the upper fabric layer 101 forms a plain weave, wherein by the mutually exchanging interweaving of the binding threads i1 to i20 of the binder thread pairs with the upper longitudinal threads 1,3,5,7,9,11,13,15,17 and 19 by the Interweaving the upper longitudinal threads 1,3,5,7,9,11,13,15,17 and 19 formed with the upper transverse threads T1 to T20 weave pattern is continued.
  • each binding yarn i1 to i20 intersects on interweaving with successive upper longitudinal threads 1,3,5,7,9,11,13,15,17 and 19 alternately on the outer side 103 of the upper fabric layer 101 and between the two fabric layers 101, 102 running upper longitudinal threads 1,3,5,7,9,11,13,15,17 and 19.
  • the lower fabric layer has a weave pattern, which is repeated in lower repeats, the lower repeat through the lower longitudinal threads 2,4,6,8,10,12,14,16,18 and 20, the binding threads i1 to i20 and the lower transverse threads B1 to B20 is formed.
  • the binding thread pair i1 and i2 is flanked on one side by the lower transverse thread B2 and on the other side by the lower transverse thread B3.
  • all the lower transverse threads B1 to B20 of the wire 100 are interwoven in periodic order with lower longitudinal threads in the order given above.
  • each binding thread of a pair of lower longitudinal threads forms at least one binding segment S1 to S20 and each binding segment S1 to S20 is formed by the respective binding thread of the pair on the outer side 104 of the lower fabric layer 103 constantly crosses at least two immediately consecutive lower longitudinal threads.
  • the binding thread i1 of the binding thread pair i1 and i2 forms the binding segment S1 and the binding thread i2 of the binding thread pair i1 and i2 forms the binding segment S2.
  • the binding segment S1 is formed in that the binding yarn i1 of the pair on the outside 104 of the lower fabric layer 102 continuously crosses the two immediately consecutive lower longitudinal threads 14 and 16.
  • the binding segment S2 is formed in that the binding yarn i2 of the pair on the outer side 104 of the lower fabric layer 102 continuously crosses the two immediately consecutive lower longitudinal yarns 4 and 6.
  • the segments are such that between two successive binding segments formed by the same binding thread, for example, i1, for example, S1, this binding thread, for example. I1, on the outer side 103 of the upper fabric layer 101 at least one upper longitudinal thread, eg. 1 and 3, crosses.
  • the binding segments of each pair of binder yarns are positioned relative to the lower transverse yarns flanking them such that the two flanking lower transverse yarns on the outside of the lower fabric layer continuously intersect at least the same lower longitudinal yarns which together with the binding yarns of the pair form the binding segments.
  • one of the two flanking lower transverse threads each forms a bend with the lower longitudinal thread, which immediately precedes the corresponding binding segment.
  • the lower transverse thread B2 forms a bend with the lower longitudinal thread 2 and with the lower longitudinal thread 12, wherein the lower longitudinal thread 2 immediately precedes the binding segment S2 and the lower longitudinal thread 12 the binding segment S1.
  • the invention provides that the other of the two flanking lower transverse threads each forms a bend with the lower longitudinal thread, which immediately follows the corresponding binding segment.
  • the lower transverse thread B3 forms a bend with the lower longitudinal thread 8 and with the lower longitudinal thread 18, the lower longitudinal thread 8 immediately following the binding segment S2 and the lower longitudinal thread 18 following the binding segment S1.
  • the binding segments of the two binding threads are arranged alternately in each binding thread pair.
  • the binding segments S1 and S2 alternate.
  • three lower longitudinal threads are always arranged between immediately adjacent binding segments of a pair of binder threads.
  • the three lower longitudinal threads 8, 10 and 12 or the three lower longitudinal threads 18, 20 and 2 are arranged between the directly successive binding segments S1 and S2.
  • each binder thread pair has a binding yarn of the first kind i2, i4, i6, i8, i10, i12, i14, i16, i18 and i20 and a binder yarn of the second kind i1, i3, i5, i7, i9, i11, i13, i15, i17 and i19, wherein in the upper repeat unit, the binding yarn of the first kind i2, i4, i6, i8, i10, i12, i14, i16, i18 and i20 crosses two upper longitudinal yarns when it runs on the outer surface 103 of the upper fabric layer 101 and the binder yarn second Art i1, i3, i5, i7, i9, i11, i13, i15, i17 and i19 crosses three upper longitudinal threads when it runs on the outer side 103 of the upper fabric layer 101.
  • binding segments formed by binding threads of the same type are arranged directly adjacent to each other pairs of binding thread in Querfa-denides to each other offset by a lower longitudinal thread and overlapping therefore partially.
  • the binding threads of the first type i2, i4, i6, i8, i10, i12, i14, i16, i18 and i20 with the corresponding lower longitudinal threads the binding segments S2, S4, S6, S8, S10, S12, S14, S16, S18 and S20, where, for example, the immediately adjacent binding segments S2 and S4 in the transverse thread direction around the lower longitudinal thread 6 are arranged overlapping side by side.
  • FIG. 2 shows a second embodiment of a paper forming machine 110 according to the invention designed as a forming fabric.
  • binding segments formed by binding threads of the same kind directly adjacent to each other pairs of binding thread in the transverse thread direction directly to each other.
  • the binding threads of the first type i2, i3, i6, i7, i10, i11, i14, i15, i18 and i19 with the corresponding lower transverse threads form the binding segments S2, S3, S6, S7, S10, S11, S14, S15. S18 and S19, wherein, for example, the immediately adjacent binding segments S2 and S3 in the transverse thread direction directly - ie without overlapping or spacing of one or more lower longitudinal threads - are arranged next to each other.
  • the lower transverse threads have a larger cross-sectional area than the binding threads.
  • FIG. 3 shows a representation of the lower fabric layer 112 over a part of the lower repeat with a view of the outer side 114 of the lower fabric layer 112th
  • the binding thread pair i3 and i4 are picked out.
  • the binding thread i3 forms the binding segment S3 with the lower longitudinal threads 14 and 16
  • the binding thread i4 forms the binding segment S4 with the lower longitudinal threads 4 and 6.
  • the binding segment S4 is formed in that the binding thread i4 on the outer side 114 of the lower fabric layer 113 continuously crosses the two immediately consecutive lower longitudinal threads 4 and 6.
  • the binding segment S3 is formed in that the binding yarn i3 on the outside 114 of the lower fabric layer 113 continuously crosses the two immediately consecutive lower longitudinal threads 14 and 16.
  • binding segments S3 and S4 are arranged relative to the flanking transverse threads B2 and B3 flanking them the two flanking lower transverse threads B2 and B3 on the outer side 114 of the lower fabric layer 112 continuously intersect the same lower longitudinal threads 4 and 6 which, together with the binding thread i4 of the pair, form the binding segments S4, the two flanking lower transverse threads B2 and B3 on the outer side 114 of the lower fabric layer 112 continuously intersect the same lower longitudinal threads 14 and 16 which, together with the binding yarn i3 of the pair, form the binding segment S3, the flanking lower transverse thread B2 forms a bend with the lower longitudinal threads 2 and 12, wherein the longitudinal thread 2 immediately precedes the binding segment S4 and the longitudinal thread 12 the binding segment S3, and the flanking lower transverse thread B3 forms a bend with the lower longitudinal threads 8 and 18, the longitudinal thread 8 immediately following the binding segment S4 and the longitudinal thread 18 following the binding segment S3.

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  • Paper (AREA)
  • Woven Fabrics (AREA)
EP08154772A 2007-04-28 2008-04-18 Habillage pour une machine a papier Revoked EP1985749B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007020071A DE102007020071A1 (de) 2007-04-28 2007-04-28 Formiersieb

Publications (3)

Publication Number Publication Date
EP1985749A2 true EP1985749A2 (fr) 2008-10-29
EP1985749A3 EP1985749A3 (fr) 2009-03-25
EP1985749B1 EP1985749B1 (fr) 2011-08-17

Family

ID=39627428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08154772A Revoked EP1985749B1 (fr) 2007-04-28 2008-04-18 Habillage pour une machine a papier

Country Status (5)

Country Link
US (1) US7637291B2 (fr)
EP (1) EP1985749B1 (fr)
AT (1) ATE520819T1 (fr)
DE (1) DE102007020071A1 (fr)
ES (1) ES2371973T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009089930A1 (fr) * 2008-01-18 2009-07-23 Voith Patent Gmbh Bande de tissu pour une machine destinée à fabriquer un matériau en bande, en particulier du papier ou du carton
WO2010049304A1 (fr) * 2008-10-28 2010-05-06 Voith Patent Gmbh Toile de formation
WO2013120656A1 (fr) * 2012-02-16 2013-08-22 Voith Patent Gmbh Tamis pour machine de fabrication d'une bande de matière fibreuse

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007046113A1 (de) * 2007-09-21 2009-04-02 Voith Patent Gmbh Formiersieb
EP2194186B1 (fr) * 2007-10-05 2023-12-20 Nippon Filcon Co., Ltd. Tissu double couche industriel
CA2680924A1 (fr) 2009-09-29 2011-03-29 Richard Stone Toile servant a la fabrication du papier comprenant des paires d'echantillons de fils complementaires du cote machine
DE102009054534A1 (de) * 2009-12-11 2011-06-16 Voith Patent Gmbh Gewebeband für eine Maschine zur Herstellung von Bahnmaterial, insbesondere Papier oder Karton
JP5777874B2 (ja) * 2010-11-30 2015-09-09 日本フイルコン株式会社 工業用二層織物
EP2899311B1 (fr) * 2014-01-28 2016-01-13 Heimbach GmbH & Co. KG Toile pour machine à papier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1536060A1 (fr) * 2003-11-17 2005-06-01 Voith Fabrics Patent GmbH Toile de formation

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US4071050A (en) * 1972-09-01 1978-01-31 Nordiska Maskinfilt Aktiebolaget Double-layer forming fabric
DE3817144A1 (de) * 1988-05-19 1989-11-30 Wangner Gmbh Co Kg Hermann Doppellagige bespannung fuer den blattbildungsbereich einer papiermaschine
US5151316A (en) * 1989-12-04 1992-09-29 Asten Group, Inc. Multi-layered papermaker's fabric for thru-dryer application
US5219004A (en) * 1992-02-06 1993-06-15 Lindsay Wire, Inc. Multi-ply papermaking fabric with binder warps
GB9604602D0 (en) * 1996-03-04 1996-05-01 Jwi Ltd Composite papermaking fabric with paired weft binder yarns
US5967195A (en) * 1997-08-01 1999-10-19 Weavexx Corporation Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface
US5881764A (en) * 1997-08-01 1999-03-16 Weavexx Corporation Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface
GB9811089D0 (en) * 1998-05-23 1998-07-22 Jwi Ltd Warp-tied composite forming fabric
PT1002892E (pt) * 1998-11-18 2002-06-28 Heimbach Gmbh Thomas Josef Produto textil para revestimento superficial
GB2351505A (en) * 1999-06-29 2001-01-03 Jwi Ltd Two-layer woven fabric for papermaking machines
US6179013B1 (en) * 1999-10-21 2001-01-30 Weavexx Corporation Low caliper multi-layer forming fabrics with machine side cross machine direction yarns having a flattened cross section
US6123116A (en) * 1999-10-21 2000-09-26 Weavexx Corporation Low caliper mechanically stable multi-layer papermaker's fabrics with paired machine side cross machine direction yarns
US6334467B1 (en) * 1999-12-08 2002-01-01 Astenjohnson, Inc. Forming fabric
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
US6253796B1 (en) * 2000-07-28 2001-07-03 Weavexx Corporation Papermaker's forming fabric
US6854488B2 (en) * 2002-12-24 2005-02-15 Voith Fabrics Heidenheim Gmbh & Co., Kg Fabrics with paired, interchanging yarns having discontinuous weave pattern
US7059359B2 (en) * 2003-05-22 2006-06-13 Voith Fabrics Warp bound composite papermaking fabric
WO2004104294A2 (fr) * 2003-05-23 2004-12-02 Voith Fabrics Patent Gmbh Toiles de formation a grand nombre de lames
ATE430833T1 (de) * 2003-06-10 2009-05-15 Voith Patent Gmbh Papiermaschinenbespannungen mit gepaarten, wechselseitig eingebundenen multisegmentgarnen
GB0317248D0 (en) * 2003-07-24 2003-08-27 Voith Fabrics Gmbh & Co Kg Fabric
EP1656480A1 (fr) * 2003-08-13 2006-05-17 Voith Fabrics Patent GmbH Tissu utilisant un liant/des paires de fils interchangeables superieures
US6978809B2 (en) * 2003-09-29 2005-12-27 Voith Fabrics Composite papermaking fabric
DE102004035519A1 (de) * 2004-07-22 2006-02-09 Voith Fabrics Patent Gmbh Papiermaschinenbespannung
DE102004035522A1 (de) * 2004-07-22 2006-03-16 Voith Fabrics Patent Gmbh Papiermaschinenbespannung
US7431802B2 (en) * 2005-06-22 2008-10-07 Voith Paper Patent Gmbh Compound paper making fabric
US7503350B2 (en) * 2005-08-03 2009-03-17 Voith Patent Gmbh Compound forming fabric with additional bottom yarns
WO2007096218A1 (fr) * 2006-02-25 2007-08-30 Voith Patent Gmbh Bande de tissu pour machine de fabrication de matériau en bande, en particulier de papier ou de carton

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1536060A1 (fr) * 2003-11-17 2005-06-01 Voith Fabrics Patent GmbH Toile de formation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009089930A1 (fr) * 2008-01-18 2009-07-23 Voith Patent Gmbh Bande de tissu pour une machine destinée à fabriquer un matériau en bande, en particulier du papier ou du carton
WO2010049304A1 (fr) * 2008-10-28 2010-05-06 Voith Patent Gmbh Toile de formation
WO2013120656A1 (fr) * 2012-02-16 2013-08-22 Voith Patent Gmbh Tamis pour machine de fabrication d'une bande de matière fibreuse

Also Published As

Publication number Publication date
ATE520819T1 (de) 2011-09-15
DE102007020071A1 (de) 2008-10-30
ES2371973T3 (es) 2012-01-12
EP1985749B1 (fr) 2011-08-17
US20080264511A1 (en) 2008-10-30
EP1985749A3 (fr) 2009-03-25
US7637291B2 (en) 2009-12-29

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