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WO1996034146A1 - Coutures pour tissus de papeterie - Google Patents

Coutures pour tissus de papeterie Download PDF

Info

Publication number
WO1996034146A1
WO1996034146A1 PCT/GB1996/001008 GB9601008W WO9634146A1 WO 1996034146 A1 WO1996034146 A1 WO 1996034146A1 GB 9601008 W GB9601008 W GB 9601008W WO 9634146 A1 WO9634146 A1 WO 9634146A1
Authority
WO
WIPO (PCT)
Prior art keywords
loops
seaming
papermakers fabric
fabric according
papermakers
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.)
Ceased
Application number
PCT/GB1996/001008
Other languages
English (en)
Inventor
Greg Lawton
Jun Chen
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.)
Scapa Group Ltd
Original Assignee
Scapa Group Ltd
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 Scapa Group Ltd filed Critical Scapa Group Ltd
Priority to AU54062/96A priority Critical patent/AU5406296A/en
Publication of WO1996034146A1 publication Critical patent/WO1996034146A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • D21F1/0054—Seams thereof

Definitions

  • the present invention relates to the seaming of two ends of a papermakers fabric.
  • the present invention has particular, but not exclusive, application to the seaming of two ends of a dryer fabric.
  • Papermakers fabrics such as dryer fabrics, may be from two to ten metres wide and from fifteen to over a hundred metres long and the making of a satisfactory seam quickly and easily is essential for the efficient operation of a dryer.
  • European patent application EP 0441412A describes a flat woven dryer felt made endless by interdigitating loop formations, each formed as continuous helices, provided at the respective fabric ends and inserting a pintle wire into the tunnel formed by and between said formations.
  • This seam comprising the two helices and pintle wire, is the most common area of failure for a dryer fabric.
  • the helices have on average one thousand loops per metre of seam length. If just one of these loops breaks then the helix will unravel or unwind itself from the fabric resulting in fabric failure.
  • the present invention has been made from a consideration of this problem.
  • a papermakers fabric having at each end a respective seaming body each comprising a plurality of individual parallel loops, the loops being joined by a connector, the two sets of loops being interdigitatable and capable of union by a pintle wire so as to form a flexible joint.
  • more than one seaming body may be provided in the cross-machine direction of the fabric.
  • the loops and associated connector are preferably provided as an integral unit usually by way of a single moulding.
  • Injection moulding is the preferred method of manufacture, ideally from the connector.
  • manufacture may be by way of extruding end-on and machining the extruded mould to cut out slots in order to form the individual loops.
  • the seaming bodies of the invention may be made to precise dimensions thus ensuring that the two interdigitating sets of formations will mate perfectly. Unlike conventional systems there is no danger that two neighbouring loops will become mated in a gap between two loops on the opposite fabric end. Thus a constant permeability exists along the seam.
  • the dimensions of the loops of the seaming bodies of the invention are greater than known designs thus providing superior strength.
  • a seaming body may be secured to an end of the fabric by running selected machine direction yarns from the fabric and around the regions of the connector lying intermediate to the loops and then weaving the yarns back into the fabric. Thus there is no sewing within in the loops and damage of the loops is prevented.
  • the seaming body may be used on its own, or in conjunction with one or more other spiral elements in order to provide strength in seam regions subjected to high stress.
  • the molecular orientation of the seaming body moulding material is in line with the formed loop in order to provide maximum strength in the machine direction.
  • Any polymer having reasonable hydrolysis resistance may be used for the seaming body, e.g. polyesters, polyamides, PEEK or liquid crystal polymers.
  • Fig.l is an end elevation of a seaming body in accordance with the present invention.
  • Fig.2 is a plan view of the seaming body of Fig.l;
  • Fig.3 is an end elevation of the seaming body of Figs. 1 and 2 intermeshed with a second seaming body;
  • Fig.4 is a plan view of the seaming bodies shown in Fig.3;
  • Fig.5 is a plan view of two ends of a dryer fabric to be connected by a plurality of seaming bodies in accordance with the invention.
  • a flat woven dryer fabric 10 is made endless by interdigitating the loop formations 11 of seaming bodies 12,13 provided at the free ends of the fabric 10 and inserting a pintle wire 14 into the tunnel formed by and between the loops 11.
  • Each seaming body 12,13 comprises a plurality of parallel loops 11 arranged vertically and extending forwardly of a rod connector 15.
  • the rod 15 and loops 11 are formed as a single integral unit by injection moulding.
  • the loops 11 are elongate rather than circular in elevation.
  • the preferred dimensions A to J of the seaming bodies 12,13 are set out below.
  • the seaming body is attached to the fabric end by passing machine direction yarns around the rod connector for the loops and weaving the yarns back into the fabric.
  • One seaming body may be provided at each fabric end.
  • a series of seaming bodies 16,17,18,19,20,21 may be provided at each fabric end.
  • each seaming body engages a similarly sized seaming body provided at the opposite fabric end and a like number of seaming bodies are provided at the fabric ends.
  • different numbers of seaming bodies and differently sized seaming bodies may be used.

Landscapes

  • Woven Fabrics (AREA)

Abstract

L'invention porte sur un dispositif amélioré de couture de tissus de papetterie, dont la rupture d'une des boucles n'affecte pas le reste. Elle porte en outre sur un tissu de papeterie (10) rendu sans fin par entrelacement des boucles (11) de ses éléments d'assemblage (12, 13). Ces derniers sont disposés aux extrémités libres du tissu (10) et un fil charnière (14) est inséré dans le tunnel constitué par et entre les boucles (11). On résout ainsi le problème antérieur qui obligeait à démêler le tissu en cas de rupture d'une boucle, au risque d'endommager le tissu.
PCT/GB1996/001008 1995-04-27 1996-04-29 Coutures pour tissus de papeterie Ceased WO1996034146A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54062/96A AU5406296A (en) 1995-04-27 1996-04-29 Papermakers fabric seaming

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9508573.4 1995-04-27
GBGB9508573.4A GB9508573D0 (en) 1995-04-27 1995-04-27 Papermakers fabric seaming

Publications (1)

Publication Number Publication Date
WO1996034146A1 true WO1996034146A1 (fr) 1996-10-31

Family

ID=10773624

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/001008 Ceased WO1996034146A1 (fr) 1995-04-27 1996-04-29 Coutures pour tissus de papeterie

Country Status (3)

Country Link
AU (1) AU5406296A (fr)
GB (1) GB9508573D0 (fr)
WO (1) WO1996034146A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1085120A1 (fr) * 1999-09-18 2001-03-21 Thomas Josef Heimbach Gesellschaft mit beschränkter Haftung & Co. Bande pour l' utilisation dans des machines et son procédé de fabrication
WO2004010023A3 (fr) * 2002-07-24 2005-02-03 Albany Int Corp Tissu industriel a couture sur machine, a anneaux de renforcement de coutures
US7005041B2 (en) 2002-04-25 2006-02-28 Heimbach Gmbh & Co. Paper machine belt and method for creating a connection of the end edges of such a paper machine belt
US7381306B2 (en) * 2004-03-12 2008-06-03 Heimbach Gmbh & Co Paper machine belt
GB2469651A (en) * 2009-04-21 2010-10-27 Allan Richard Manninen Seaming device for an industrial fabric
WO2011069258A1 (fr) * 2009-12-11 2011-06-16 Astenjohnson, Inc. Elément de formation de coutures à articulation pour joindre des extrémités d'un textile industriel

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123022A (en) * 1977-09-12 1978-10-31 Albany International Corp. Seam for forming wires and dryer felts
GB1598698A (en) * 1978-04-27 1981-09-23 Scapa Porritt Ltd Clipper seam for joining fabric ends
EP0399674A2 (fr) * 1989-05-13 1990-11-28 Scapa Group Plc Liaison d'une bande sans fin
EP0441412A2 (fr) * 1986-12-18 1991-08-14 Scapa-Porritt Limited Joint pour feutre de séchage
US5182933A (en) * 1990-09-10 1993-02-02 Goro S. A. Method of producing devices for interconnecting conveyor or similar belts
US5377722A (en) * 1992-02-24 1995-01-03 Tamfelt Oy Ab Folded spiral seam including longitudinal bonding stitch
WO1995000774A1 (fr) * 1993-06-21 1995-01-05 Aser Dispositif de jonctionnement souple pour bande transporteuse

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123022A (en) * 1977-09-12 1978-10-31 Albany International Corp. Seam for forming wires and dryer felts
GB1598698A (en) * 1978-04-27 1981-09-23 Scapa Porritt Ltd Clipper seam for joining fabric ends
EP0441412A2 (fr) * 1986-12-18 1991-08-14 Scapa-Porritt Limited Joint pour feutre de séchage
EP0399674A2 (fr) * 1989-05-13 1990-11-28 Scapa Group Plc Liaison d'une bande sans fin
US5182933A (en) * 1990-09-10 1993-02-02 Goro S. A. Method of producing devices for interconnecting conveyor or similar belts
US5377722A (en) * 1992-02-24 1995-01-03 Tamfelt Oy Ab Folded spiral seam including longitudinal bonding stitch
WO1995000774A1 (fr) * 1993-06-21 1995-01-05 Aser Dispositif de jonctionnement souple pour bande transporteuse

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1085120A1 (fr) * 1999-09-18 2001-03-21 Thomas Josef Heimbach Gesellschaft mit beschränkter Haftung & Co. Bande pour l' utilisation dans des machines et son procédé de fabrication
US6328079B1 (en) 1999-09-18 2001-12-11 Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. Seam for a belt for recirculation in machines, and method for the manufacture
US7005041B2 (en) 2002-04-25 2006-02-28 Heimbach Gmbh & Co. Paper machine belt and method for creating a connection of the end edges of such a paper machine belt
WO2004010023A3 (fr) * 2002-07-24 2005-02-03 Albany Int Corp Tissu industriel a couture sur machine, a anneaux de renforcement de coutures
US7381306B2 (en) * 2004-03-12 2008-06-03 Heimbach Gmbh & Co Paper machine belt
GB2469651A (en) * 2009-04-21 2010-10-27 Allan Richard Manninen Seaming device for an industrial fabric
WO2010121360A1 (fr) * 2009-04-21 2010-10-28 Astenjohnson, Inc. Couture pour tissu industriel et élément de couture pour celle-ci
US9297440B2 (en) 2009-04-21 2016-03-29 Astenjohnson, Inc. Seam for an industrial fabric and seaming element therefor
US10155342B2 (en) 2009-04-21 2018-12-18 Astenjohnson, Inc. Seam for an industrial fabric and seaming element therefor
WO2011069258A1 (fr) * 2009-12-11 2011-06-16 Astenjohnson, Inc. Elément de formation de coutures à articulation pour joindre des extrémités d'un textile industriel
CN102713050A (zh) * 2009-12-11 2012-10-03 阿斯顿约翰逊公司 用于接合工业用织物两端的铰接式缝合元件
CN102713050B (zh) * 2009-12-11 2015-04-08 阿斯顿约翰逊公司 用于接合工业用织物两端的铰接式缝合元件

Also Published As

Publication number Publication date
AU5406296A (en) 1996-11-18
GB9508573D0 (en) 1995-06-14

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