EP0609664A1 - Toile de séchage et son procédé de fabrication - Google Patents

Toile de séchage et son procédé de fabrication Download PDF

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Publication number
EP0609664A1
EP0609664A1 EP19940100333 EP94100333A EP0609664A1 EP 0609664 A1 EP0609664 A1 EP 0609664A1 EP 19940100333 EP19940100333 EP 19940100333 EP 94100333 A EP94100333 A EP 94100333A EP 0609664 A1 EP0609664 A1 EP 0609664A1
Authority
EP
European Patent Office
Prior art keywords
threads
group
longitudinal threads
longitudinal
screen according
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
EP19940100333
Other languages
German (de)
English (en)
Other versions
EP0609664B1 (fr
Inventor
Sylvester Eschmann
Martin Hüser
Walter Halterbeck
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.)
Heimbach GmbH and Co KG
Original Assignee
Thomas Josef Heimbach and Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6478927&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0609664(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomas Josef Heimbach and Co GmbH filed Critical Thomas Josef Heimbach and Co GmbH
Publication of EP0609664A1 publication Critical patent/EP0609664A1/fr
Application granted granted Critical
Publication of EP0609664B1 publication Critical patent/EP0609664B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/0027Screen-cloths
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/0027Screen-cloths
    • D21F1/0036Multi-layer screen-cloths
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3065Including strand which is of specific structural definition
    • Y10T442/3089Cross-sectional configuration of strand material is specified
    • Y10T442/3106Hollow strand material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
    • Y10T442/322Warp differs from weft

Definitions

  • the invention relates to a dryer fabric with longitudinal threads extending in the machine direction and transverse threads made of plastic material extending transversely thereto, a first group of longitudinal threads floating on the paper side over a plurality of transverse threads and a second group of longitudinal threads being present which binds differently from the first group of longitudinal threads .
  • Dryer fabrics are fabrics made of plastic threads with longitudinal threads extending in the machine direction and transverse threads extending transversely thereto. They are used in the drying area of a paper machine, where they guide the paper web over the hot drying cylinders. It is essential that the dryer fabrics ensure good heat transfer and condensation is prevented. It is therefore endeavored to make dryer fabrics as thin as possible and to provide large contact areas.
  • the known dryer fabric has a good contact area due to the use of very wide flat monofilaments, especially for the longitudinal threads of the first group.
  • these threads affect the flexibility of the dryer fabric.
  • the very wide flat monofilaments are special threads that are not easy to process and are expensive.
  • the invention has for its object to provide a dryer fabric of the type mentioned in such a way that good flexibility is achieved despite the large contact area on the paper side.
  • At least two adjacent longitudinal threads of the first group form subgroups of longitudinal threads running at least on the paper side and the longitudinal threads of a subgroup abut each other side by side.
  • the longitudinal threads of a subgroup should preferably also run in the same way in the rest.
  • the term is to be understood to mean a course in which the respective longitudinal threads bind identically into the fabric next to one another.
  • the two contact surfaces are thus produced with the aid of a plurality of longitudinal threads, which are combined to form sub-groups with the same course.
  • Normal longitudinal threads which are preferably designed as flat monofilaments with a cross-sectional ratio of 1.2: 1 to 3: 1, can be used for this purpose. Since the longitudinal threads are movable despite their grouping into subgroups and their mutual contact with one another, the flexibility of the dryer fabric is not impaired by this.
  • a longitudinal thread of the second group runs below two adjacent longitudinal threads of a subgroup. It is particularly preferred that no longitudinal threads of the second group run between two subgroups of longitudinal threads of the first group. If each subgroup consists of only two longitudinal threads, only two longitudinal threads of the first group have one longitudinal thread of the second group. On the one hand, this results in a concentration of the longitudinal threads on the paper side in order to achieve a large contact area; on the other hand, the dryer fabric on the machine side is comparatively open, so that good steam passage is achieved.
  • the longitudinal threads of the second group bind only on the paper side with such transverse threads via which the longitudinal threads of a subgroup float which run above this longitudinal thread of the second group. In this way, a crossing of the longitudinal threads of the first and the second group is avoided.
  • the corresponding is expediently also provided on the lower or machine side of the dryer fabric, in that the longitudinal threads of the second group float on the machine side via those transverse threads which tie in on the machine side with the longitudinal threads of a subgroup which run above the relevant longitudinal thread of the second group.
  • the longitudinal threads of the first group should float on the paper side each over at least three transverse threads before they tie again. However, the floatation can also take up to nine transverse threads.
  • the longitudinal threads of the first group should only be tied in with one cross thread. The same is also provided for the longitudinal threads of the second group, with a mirror image of the longitudinal threads of the first group then being offered.
  • the transverse threads are designed as open hollow monofilaments, as are known, for example, from US Pat. No. 4,251,588. It is possible to design all or only part of the transverse threads as open hollow monofilaments. In the latter case, the other part of the transverse threads should be designed as solid monofilaments, in which case the hollow monofilaments should alternate with the solid monofilaments, preferably always a hollow monofilament with a solid monofilament. The hollow monofilaments can then be flattened using a calendering process in order to achieve the thinnest possible dryer fabric.
  • cross threads of larger diameter alternate with cross threads which have a smaller diameter than that, preferably in such a way that a cross thread with a larger diameter always alternates with a cross thread of smaller diameter.
  • the longitudinal threads of a subgroup are expediently offset in relation to adjacent longitudinal threads of a subgroup in the machine running direction with regard to their integration.
  • the longitudinal threads of the first group should have identical cross-sectional shape and area.
  • the aim is to form a single-layer dryer fabric in order to keep the thickness of the dryer fabric as small as possible.
  • the dryer fabric according to the invention can be produced in a simple manner by using such shrinkable transverse threads for the weaving process and the dryer fabric after The weaving process is heat-treated in such a way that the longitudinal threads of a sub-group, which run in the same direction, lie side by side.
  • plastic threads such as polyester threads or the like are subject to shrinkage when exposed to heat.
  • the shrinkability is used specifically to lay the longitudinal threads of one subgroup together and also the longitudinal threads of two neighboring subgroups, which creates large-area and practically uninterrupted contact areas.
  • the dryer fabric (1) shown in Figure (1) is designed as a single-layer fabric and has a machine running direction in the directions of arrow A.
  • Round transverse threads run at right angles to this machine running direction A, for example designated (2). They are designed as hollow monofilaments, that is to say they have cavities in the untreated state - designated by (3) for example.
  • the transverse threads (2) consist of a plastic material that is highly shrinkable when heat is applied, for example polyester.
  • transverse threads (2) tie longitudinal threads in machine direction A, which are formed as flat monofilaments with a rectangular cross-section.
  • a first group of longitudinal threads - for example designated (4, 5, 6, 7) - floats in each case Via three transverse threads on the paper side, before the longitudinal threads (4, 5, 6, 7) tie in with a transverse thread (2) on the underside on the machine side.
  • Two longitudinal threads (4, 5) and (6, 7) lying next to each other run in the same direction, so they have an identical and always parallel path.
  • Two longitudinal threads (4, 5) and (6, 7) each form subgroups in the first group of longitudinal threads (4, 5, 6, 7), the subgroups running next to each other, but in the machine direction A each by two transverse threads (2nd ) are offset.
  • Another longitudinal thread (8, 9) runs, which together form a second group of longitudinal threads.
  • the longitudinal threads (8, 9) of the second group bind on the paper side only with transverse threads (2) via which the longitudinal threads (4, 5) or (6, 7) of the associated subgroup float.
  • Two longitudinal threads (8, 9) of the second group running alongside one another are also offset by two transverse threads (2) in machine direction A with regard to their integration.
  • Figure (1) shows the dryer fabric (1) in the state after the weaving process.
  • the longitudinal threads (4, 5) or (6, 7) of a subgroup are then at a distance from one another which is somewhat larger than the width of the longitudinal threads (8, 9) of the second group.
  • the drying fabric (1) thus produced is then subjected to a heat treatment at temperatures at which the transverse threads (2) shrink considerably. This has the consequence that the longitudinal threads (4, 5) and (6, 7) come to rest against each other, whereby they are on the paper side over the longitudinal threads (8, 9) of the second group and on the machine side between the respective transverse threads (2) and the longitudinal thread (8, 9) push.
  • the adjacent longitudinal threads (5, 6) of the two subgroups then also come into contact. This creates the fabric image according to Figure (2), which is characterized by large contact areas on the paper side.
  • the dryer fabric (1) is then subjected to a calendering treatment, as a result of which the transverse threads (2) are flattened in such a way that the inside of the cavities (3) come into contact with one another, so that there are no more cavities (3).

Landscapes

  • Paper (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Woven Fabrics (AREA)
  • Ropes Or Cables (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP19940100333 1993-01-26 1994-01-12 Toile de séchage et son procédé de fabrication Expired - Lifetime EP0609664B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4302031A DE4302031C1 (de) 1993-01-26 1993-01-26 Trockensieb sowie Verfahren zu dessen Herstellung
DE4302031 1993-01-26

Publications (2)

Publication Number Publication Date
EP0609664A1 true EP0609664A1 (fr) 1994-08-10
EP0609664B1 EP0609664B1 (fr) 1998-04-01

Family

ID=6478927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940100333 Expired - Lifetime EP0609664B1 (fr) 1993-01-26 1994-01-12 Toile de séchage et son procédé de fabrication

Country Status (7)

Country Link
US (1) US5465764A (fr)
EP (1) EP0609664B1 (fr)
AT (1) ATE164648T1 (fr)
CA (1) CA2113985C (fr)
DE (2) DE4302031C1 (fr)
FI (1) FI96885C (fr)
NO (1) NO940262L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837179A3 (fr) * 1996-10-11 1998-08-05 Albany International Corp. Toile pour papeterie contenant des paires de fils sens machine identiques, tissés ensemble
EP0851057A3 (fr) * 1996-12-02 1998-08-19 Albany International Corp. Toíle de papeterie avec des paires de fils de chaíne différents tissés ensemble
DE19923088C1 (de) * 1999-05-20 2000-10-12 Heimbach Gmbh Thomas Josef Papiermaschinenbespannung, insbesondere als Trockensieb

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GB9807704D0 (en) * 1998-04-09 1998-06-10 Scapa Group Plc Fabric and seam construction
US5996378A (en) * 1998-05-20 1999-12-07 Guilford Mills, Inc. Knitted textile fabric with integrated fluid-containing or -conveying tubular segments
US6585006B1 (en) 2000-02-10 2003-07-01 Weavexx Corporation Papermaker's forming fabric with companion yarns
FI107550B (fi) 2000-05-18 2001-08-31 Tamfelt Oyj Abp Kuivatusviira
US6244306B1 (en) * 2000-05-26 2001-06-12 Weavexx Corporation Papermaker's forming fabric
US6253796B1 (en) 2000-07-28 2001-07-03 Weavexx Corporation Papermaker's forming fabric
US6745797B2 (en) 2001-06-21 2004-06-08 Weavexx Corporation Papermaker's forming fabric
CN100357508C (zh) * 2001-07-05 2007-12-26 阿斯坦约翰逊公司 含有并线的工业织物
US20080260744A1 (en) * 2002-09-09 2008-10-23 Omeros Corporation G protein coupled receptors and uses thereof
US7048012B2 (en) * 2002-10-24 2006-05-23 Albany International Corp. Paired warp triple layer forming fabrics with optimum sheet building characteristics
US6834684B2 (en) * 2002-10-24 2004-12-28 Albany International Corp. Paired warp triple layer forming fabrics with optimum sheet building characteristics
US6860969B2 (en) 2003-01-30 2005-03-01 Weavexx Corporation Papermaker's forming fabric
US6837277B2 (en) 2003-01-30 2005-01-04 Weavexx Corporation Papermaker's forming fabric
US7059357B2 (en) 2003-03-19 2006-06-13 Weavexx Corporation Warp-stitched multilayer papermaker's fabrics
US6896009B2 (en) 2003-03-19 2005-05-24 Weavexx Corporation Machine direction yarn stitched triple layer papermaker's forming fabrics
US7243687B2 (en) 2004-06-07 2007-07-17 Weavexx Corporation Papermaker's forming fabric with twice as many bottom MD yarns as top MD yarns
DE102004035523A1 (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
DE102004035519A1 (de) * 2004-07-22 2006-02-09 Voith Fabrics Patent Gmbh Papiermaschinenbespannung
US7523626B2 (en) * 2004-10-01 2009-04-28 Saint-Gobain Performance Plastics Corporation Conveyor belt
US7195040B2 (en) 2005-02-18 2007-03-27 Weavexx Corporation Papermaker's forming fabric with machine direction stitching yarns that form machine side knuckles
DE102005029573A1 (de) * 2005-06-25 2007-01-04 Voith Patent Gmbh Papierherstellungsbespannung
US7484538B2 (en) 2005-09-22 2009-02-03 Weavexx Corporation Papermaker's triple layer forming fabric with non-uniform top CMD floats
US7219701B2 (en) 2005-09-27 2007-05-22 Weavexx Corporation Papermaker's forming fabric with machine direction stitching yarns that form machine side knuckles
DE102005055785A1 (de) * 2005-11-21 2007-05-24 Voith Patent Gmbh Papiermaschinensieb
DE102005060301A1 (de) * 2005-12-16 2007-06-21 Voith Patent Gmbh Papiermaschinenbespannung
DE102005060299A1 (de) * 2005-12-16 2007-06-21 Voith Patent Gmbh Papiermaschinensieb
US7360560B2 (en) * 2006-01-31 2008-04-22 Astenjohnson, Inc. Single layer papermakers fabric
US7275566B2 (en) 2006-02-27 2007-10-02 Weavexx Corporation Warped stitched papermaker's forming fabric with fewer effective top MD yarns than bottom MD yarns
US7580229B2 (en) 2006-04-27 2009-08-25 Hitachi Global Storage Technologies Netherlands B.V. Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with antiparallel-free layer structure and low current-induced noise
US7617846B2 (en) * 2006-07-25 2009-11-17 Albany International Corp. Industrial fabric, and method of making thereof
DE102006061114A1 (de) * 2006-12-22 2008-06-26 Voith Patent Gmbh Gewebeband für eine Maschine zur Herstellung von Bahnmaterial und Verfahren zur Herstellung eines derartigen Gewebebandes
US7487805B2 (en) 2007-01-31 2009-02-10 Weavexx Corporation Papermaker's forming fabric with cross-direction yarn stitching and ratio of top machined direction yarns to bottom machine direction yarns of less than 1
US7624766B2 (en) * 2007-03-16 2009-12-01 Weavexx Corporation Warped stitched papermaker's forming fabric
US20090183795A1 (en) 2008-01-23 2009-07-23 Kevin John Ward Multi-Layer Papermaker's Forming Fabric With Long Machine Side MD Floats
US7766053B2 (en) 2008-10-31 2010-08-03 Weavexx Corporation Multi-layer papermaker's forming fabric with alternating paired and single top CMD yarns
US8251103B2 (en) 2009-11-04 2012-08-28 Weavexx Corporation Papermaker's forming fabric with engineered drainage channels
CA2748789A1 (fr) * 2011-08-15 2013-02-15 Derek Chaplin Embossage de tissu comprenant des ensembles de fils de chaine
US8808506B2 (en) * 2012-02-13 2014-08-19 Voith Patent Gmbh Structured fabric for use in a papermaking machine and the fibrous web produced thereon
EP2631360B1 (fr) * 2012-02-24 2014-05-14 Heimbach GmbH & Co. KG Toile pour la formation d'une bande de papier dotée d'une surface gravée
CA2773501A1 (fr) * 2012-04-02 2013-10-02 Derek Chaplin Tissus monocouches permeables a l'air restant plus secs
EP2877631B1 (fr) * 2012-07-27 2017-12-13 Voith Patent GmbH Tissu de séchage
CN104818642B (zh) * 2015-05-22 2016-08-17 安平县鑫鹏网带有限公司 一种工业织物
DE102016200230A1 (de) * 2016-01-12 2017-08-17 Voith Patent Gmbh Trockensieb
EP3631064B1 (fr) * 2017-05-30 2022-03-30 AstenJohnson, Inc. Tissu de séchage à fils de chaîne empilés à stabilité élevée avec flottés de chaîne longs
DE102017007127A1 (de) * 2017-07-31 2019-01-31 Gkd - Gebr. Kufferath Ag Filtergewebe und Verwendung eines Filtergewebes
US12188178B2 (en) * 2022-12-07 2025-01-07 Voith Patent Gmbh Structured fabric with discrete elements

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EP0325167A1 (fr) * 1988-01-15 1989-07-26 Hermann Wangner GmbH & Co. KG Toile à deux couches pour la section de formation d'une machine à papier

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EP0044053A1 (fr) * 1980-07-11 1982-01-20 Huyck Corporation Tissus de fourdrinier à double couche continue
US4636426A (en) * 1985-01-04 1987-01-13 Huyck Corporation Papermaker's fabric with yarns having multiple parallel monofilament strands
EP0232708A1 (fr) * 1986-01-08 1987-08-19 Huyck Corporation Tissu double couche ayant un rapport de seize
EP0325167A1 (fr) * 1988-01-15 1989-07-26 Hermann Wangner GmbH & Co. KG Toile à deux couches pour la section de formation d'une machine à papier

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837179A3 (fr) * 1996-10-11 1998-08-05 Albany International Corp. Toile pour papeterie contenant des paires de fils sens machine identiques, tissés ensemble
CN1048770C (zh) * 1996-10-11 2000-01-26 阿尔巴尼国际公司 具有在编织时作为单根用的成对的相同机向纱的造纸用织物
EP0851057A3 (fr) * 1996-12-02 1998-08-19 Albany International Corp. Toíle de papeterie avec des paires de fils de chaíne différents tissés ensemble
CN1046768C (zh) * 1996-12-02 1999-11-24 阿尔巴尼国际公司 具有编织成一股的成对的不同的机器方向纱线的造纸机织物
DE19923088C1 (de) * 1999-05-20 2000-10-12 Heimbach Gmbh Thomas Josef Papiermaschinenbespannung, insbesondere als Trockensieb
US6332480B1 (en) 1999-05-20 2001-12-25 Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. Paper machine clothing having loop-forming longitudinal threads, at its ends

Also Published As

Publication number Publication date
DE59405551D1 (de) 1998-05-07
FI96885C (fi) 1996-09-10
CA2113985C (fr) 2005-07-26
FI940377A0 (fi) 1994-01-26
NO940262L (no) 1994-07-27
FI940377L (fi) 1994-07-27
NO940262D0 (no) 1994-01-25
ATE164648T1 (de) 1998-04-15
US5465764A (en) 1995-11-14
DE4302031C1 (de) 1993-12-16
FI96885B (fi) 1996-05-31
EP0609664B1 (fr) 1998-04-01
CA2113985A1 (fr) 1994-07-27

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