EP0290653B1 - Materialbahn - Google Patents

Materialbahn Download PDF

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Publication number
EP0290653B1
EP0290653B1 EP87106979A EP87106979A EP0290653B1 EP 0290653 B1 EP0290653 B1 EP 0290653B1 EP 87106979 A EP87106979 A EP 87106979A EP 87106979 A EP87106979 A EP 87106979A EP 0290653 B1 EP0290653 B1 EP 0290653B1
Authority
EP
European Patent Office
Prior art keywords
threads
web
material according
thread
knitted
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
EP87106979A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0290653A1 (de
Inventor
Helmut Hälker
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
Priority to ES87106979T priority Critical patent/ES2015284B3/es
Application filed by Thomas Josef Heimbach and Co GmbH filed Critical Thomas Josef Heimbach and Co GmbH
Priority to EP87106979A priority patent/EP0290653B1/de
Priority to DE8787106979T priority patent/DE3762246D1/de
Priority to AT87106979T priority patent/ATE51907T1/de
Priority to CA000566454A priority patent/CA1322121C/en
Priority to US07/193,595 priority patent/US4948658A/en
Priority to FI882245A priority patent/FI89818C/fi
Publication of EP0290653A1 publication Critical patent/EP0290653A1/de
Application granted granted Critical
Publication of EP0290653B1 publication Critical patent/EP0290653B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/061—Cushion plates
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
    • 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
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
    • D10B2403/02412—Fabric incorporating additional compounds enhancing mechanical properties including several arrays of unbent yarn, e.g. multiaxial fabrics
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/45—Knit fabric is characterized by a particular or differential knit pattern other than open knit fabric or a fabric in which the strand denier is specified
    • Y10T442/456—Including additional strand inserted within knit fabric
    • Y10T442/463—Warp knit insert strand
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/50—FELT FABRIC
    • Y10T442/56—From synthetic organic fiber

Definitions

  • the invention relates to a material web, in particular for paper machine clothing for the press section of a paper machine, as a filter medium or as a press pad for the chipboard presses, with knitting threads extending in one direction, each of which envelops a core thread, and with binding threads running at right angles thereto. Furthermore, the invention relates to a method for producing this material web, in which mesh threads are produced with core threads covered by them and, after alignment, are connected with binding threads in a parallel, parallel position.
  • a paper machine clothing in which unidirectional mesh threads are used. These mesh threads can contain soul threads made of different materials.
  • the stitch threads are interwoven with weft threads running in the transverse direction, i.e. the weft threads are passed around the stitch threads.
  • the description also assumes a fabric structure for the paper machine clothing.
  • the stitch threads are produced individually on a knitting machine and then woven in a weaving machine with the weft threads, optionally with further warp threads.
  • a corresponding paper machine clothing is described in EP-A 0 059 973.
  • This wet felt also has a woven fabric in which some warp threads extending in the longitudinal direction are formed as knitted threads. These threads are elastically compressible and are intended to improve back elasticity and drainage.
  • machine felts are known, for example for filtering purposes, which consist of voluminous threads running parallel in the transverse direction and tricot seams extending parallel and in the longitudinal direction parallel to one another (DE-A 2 213 421).
  • the cross threads go through the mesh of the tricot seams and the material thus formed is then needled for the purpose of felting.
  • the transverse threads essentially form the filter-effective fiber material, while the tricot seams give a certain strength in the longitudinal direction.
  • weft threads are provided which link the tricot seams to one another in the transverse direction.
  • the invention has for its object to give a material web of the type mentioned in such a structure that it is quick and inexpensive to manufacture, and to provide a method that allows such a production.
  • the first-mentioned object is achieved according to the invention in that the binding threads in the form of a magazine weft pass straight through the stitch threads.
  • This structure of a material web allows, despite the more fabric-like design, the quick and inexpensive production on a knitting machine according to the method according to the invention, in which all stitch threads are produced simultaneously and at the desired distance next to one another by continuous stitch formation with simultaneous feeding of the soul thread and subsequently a magazine weft through the stitch threads is driven.
  • For the production of the material web only a correspondingly wide knitting machine with magazine weft device is required.
  • the set-up time for this knitting machine is very short compared to weaving machines and the production speed is also much higher.
  • the soul threads can be optimally adapted to the respective requirements, whereby different materials can be combined with each other.
  • the soul thread is held together by the stitch thread in such a way that twisting of the individual yarns of the thread is not necessary. It is sufficient if it is available as a bundle of threads. It is therefore also possible to use or combine yarn materials that cannot be twisted together. By saving the twisting mill there is an additional cost saving effect.
  • the covering has a pronounced longitudinal structure in the direction of the threads formed from mesh and core threads.
  • this web of material is used as paper machine clothing and this structure runs in the longitudinal direction of the paper machine clothing, this creates a drainage effect in this direction.
  • a drainage effect is extremely desirable and leads to a high drainage of the paper web.
  • the mesh threads expediently consist of a thin monofilament, since they only have to absorb tensile forces to a small extent.
  • the tensile forces are expediently taken over by the tension threads forming the soul threads or existing as part of the soul threads.
  • filler threads made from a wide variety of materials can then be inserted to give the soul threads the desired volume. For example, spun yarns, multifilaments, foam rolls, ribbon structures or even mineral fibers, straw, paper, and electrically conductive materials such as metal fibers or the like can be inserted. If a tension thread is present, the tensile strength of the filler threads is no longer important, so that yarn or thread material that is only able to absorb low tensile forces can also be used.
  • the magazine shots all run on one side of the soul threads, and expediently on the back.
  • the paper contact side is formed only by the threads which are formed from the combination of mesh and core threads. Accordingly, a distinctive longitudinal structure with a good drainage effect is also created on this side.
  • the material web is designed as a needle felt. This can be done by forming the soul threads from voluminous fiber material, which is needled for the purpose of felting.
  • a nonwoven fabric can also be applied to at least one side of the covering and connected to the scrim by needling.
  • a needle felt is particularly suitable as a filter medium, but also as a paper machine covering, in particular as a wet felt for the press section.
  • the material web in a liquid-impermeable plastic band in order to use such a band in wet presses with an extended press nip (cf. EP-A3-0 138 797, DE-A1-32 31 039).
  • the material web is only partially embedded in a liquid-impermeable plastic band and protrudes on one side of the plastic web with the formation of open channels for liquid removal (cf. EP-A2-0 098 502, DE-A1- 32 35 468).
  • the web of material according to the invention can thus be used in a variety of ways.
  • the longitudinal thread (1) shown in Figures (1) and (2) basically consists of a core thread (2) and a warp-knitted stitch thread (3) surrounding the core thread (2).
  • the soul thread (2) forms - as Figure (2) in particular shows - a bundle of threads from a total of six individual threads (4, 5, 6, 7, 8, 9).
  • Two (4, 8) of these individual threads are formed as monofilaments from a tensile material, for example polyamide, and essentially absorb the tensile stresses acting on the longitudinal thread (1).
  • the remaining individual threads (5, 6, 7, 9) can consist of a wide variety of materials, since they are relieved of tensile force by the monofilament individual threads (4, 8).
  • the bundle of threads is not twisted together because it is enveloped by the stitch thread (3) and held together.
  • Figure (3) shows a section of a paper machine clothing, which has been produced using the longitudinal threads (1) shown in Figures (1) and (2).
  • the longitudinal threads (1) run parallel in the running direction of the paper machine clothing.
  • the thread density is relatively low, for example three threads / cm.
  • machine wefts run through the mesh threads at regular intervals - denoted by (10) for example -. They each cross through the stitches of the stitch threads (3) and lie on the underside of the soul threads (2).
  • Their distance from one another can be varied by the number of stitches per unit length and by the fact that a machine weft (10) is not placed through each stitch.
  • the stitch density can be 6 to 9 stitches / cm and the magazine weft density can be 3 threads / cm.
  • other values can also be considered.
  • the section shown in Figure (3) shows only one layer of the paper machine clothing. It is possible to lay several such layers on top of each other and to connect them with needle felting. If the seams of the individual layers are staggered, a special seam connection can be dispensed with.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Woven Fabrics (AREA)
  • Inert Electrodes (AREA)
  • Materials For Medical Uses (AREA)
  • Escalators And Moving Walkways (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Insulated Conductors (AREA)
  • Valve Device For Special Equipments (AREA)
EP87106979A 1987-05-14 1987-05-14 Materialbahn Expired - Lifetime EP0290653B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP87106979A EP0290653B1 (de) 1987-05-14 1987-05-14 Materialbahn
DE8787106979T DE3762246D1 (de) 1987-05-14 1987-05-14 Materialbahn.
AT87106979T ATE51907T1 (de) 1987-05-14 1987-05-14 Materialbahn.
ES87106979T ES2015284B3 (es) 1987-05-14 1987-05-14 Pista de material
CA000566454A CA1322121C (en) 1987-05-14 1988-05-11 Strip of material and its manufacturing method
US07/193,595 US4948658A (en) 1987-05-14 1988-05-13 Strip of material and its manufacturing method
FI882245A FI89818C (fi) 1987-05-14 1988-05-13 Materialbana och foerfarande foer dess framstaellning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87106979A EP0290653B1 (de) 1987-05-14 1987-05-14 Materialbahn

Publications (2)

Publication Number Publication Date
EP0290653A1 EP0290653A1 (de) 1988-11-17
EP0290653B1 true EP0290653B1 (de) 1990-04-11

Family

ID=8196988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106979A Expired - Lifetime EP0290653B1 (de) 1987-05-14 1987-05-14 Materialbahn

Country Status (7)

Country Link
US (1) US4948658A (fi)
EP (1) EP0290653B1 (fi)
AT (1) ATE51907T1 (fi)
CA (1) CA1322121C (fi)
DE (1) DE3762246D1 (fi)
ES (1) ES2015284B3 (fi)
FI (1) FI89818C (fi)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011007291A1 (de) 2011-04-13 2012-10-18 Voith Patent Gmbh Verfahren zur Herstellung eines Moduls, insbesondere Endlosmoduls, für eine Papiermaschinenbespannung
EP2358939B1 (de) 2008-11-19 2015-04-29 Voith Patent GmbH Papiermaschinenbespannung und verfahren zu deren herstellung

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI81840C (fi) * 1988-02-09 1990-12-10 Jukka Elias Saarikettu Orienterad fiberstruktur och foerfarande foer dess framstaellning.
DE3914533A1 (de) * 1989-05-02 1990-11-08 Heimbach Gmbh Thomas Josef Band fuer papiermaschinen
DE3914534C1 (fi) * 1989-05-02 1990-10-18 Thomas Josef Heimbach Gmbh & Co, 5160 Dueren, De
US5763043A (en) * 1990-07-05 1998-06-09 Bay Mills Limited Open grid fabric for reinforcing wall systems, wall segment product and methods of making same
CA2046021C (en) * 1990-07-05 2001-09-04 John Frederick Porter Reinforcement for wall systems
TW275053B (fi) * 1994-09-30 1996-05-01 Lockheed Corp
US5945357A (en) * 1997-10-07 1999-08-31 Wangner Systems Corporation Multi-layer press fabric comprising looped, knit yarns woven in an upper layer of fabric
ATE210553T1 (de) 1999-03-03 2001-12-15 Heimbach Gmbh Thomas Josef Presspolster
US6739274B2 (en) 2001-04-11 2004-05-25 Albany International Corp. End portions for a flexible fluid containment vessel and a method of making the same
US6790796B2 (en) 2001-10-05 2004-09-14 Albany International Corp. Nonwovens forming or conveying fabrics with enhanced surface roughness and texture
US7107921B2 (en) * 2001-10-30 2006-09-19 Albany International Corp. End portion for a flexible fluid containment vessel and a method of making the same
US6832571B2 (en) 2001-10-30 2004-12-21 Albany International Corp. Segment formed flexible fluid containment vessel
US6718896B2 (en) 2001-10-30 2004-04-13 Albany International Corp. Fabric structure for a flexible fluid containment vessel
WO2004054788A1 (en) * 2002-12-18 2004-07-01 N.V. Bekaert S.A. Knitted press pad
US7303656B2 (en) * 2003-07-02 2007-12-04 Albany International Corp. Low permeability textile substrate for a two-sided coated product
GB0608677D0 (en) * 2006-05-03 2006-06-14 Marathon Belting Ltd Improvements to press pads
US7712336B2 (en) * 2007-01-31 2010-05-11 Albany International Corp. Subassembly for industrial fabrics
DE102009002121A1 (de) 2009-04-02 2010-10-14 Voith Patent Gmbh Nahtbares Pressfilz mit flach hergestellter und nicht gewobener Trägerstruktur
DE102009002433A1 (de) * 2009-04-16 2010-10-21 Voith Patent Gmbh Papiermaschinenbespannung
DE102009028215B3 (de) 2009-08-04 2010-09-09 Voith Patent Gmbh Kombination eines Pressfilzes mit einem Presswalzenbezug und/oder einem Saugwalzenbezug für eine Papiermaschine
US9957666B2 (en) * 2013-06-21 2018-05-01 Voith Patent Gmbh Clothing and method for the production thereof
JP5690386B2 (ja) * 2013-09-06 2015-03-25 宮田布帛有限会社 織物による炭素繊維強化複合材料の成形方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB186813A (en) * 1921-09-12 1922-10-12 Christfried Petzoldt Improvements in woven felts in the paper, wood pulp- and cellulose- industries
US1811081A (en) * 1928-12-08 1931-06-23 Metal Textile Corp Composite metallic fabric
US2098993A (en) * 1935-08-15 1937-11-16 Lawrence Duck Company Asbestos filled drier felt
US2217826A (en) * 1939-12-02 1940-10-15 American Enka Corp Rayon for reinforcing rubber products
IT8061980V0 (it) * 1980-12-15 1980-12-15 Veneto Feltrificio Spa Tela tramata, a foggia di nastro, per circuiti essiccatori di carta a nastro continuo.
FI64825C (fi) * 1981-03-11 1986-12-01 Cofpa Pappersmaskinfilt speciellt foer dess vaotparti
DE3114405C2 (de) * 1981-04-09 1983-01-20 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Nähwirkmaschine
SE446703B (sv) * 1982-01-20 1986-10-06 Tetra Pak Finance & Trading Sett att framstella ett for djupdragning eller streckning lempat laminatmaterial, genom settet framstellt laminat samt av laminatet tillverkad artikel
FI832191L (fi) * 1982-09-30 1984-03-31 Huyck Corp Pappermaskinstyg, som har oeppna maskor utformande traodar
DE3304345C2 (de) * 1983-02-09 1986-04-10 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Kettenwirkware mit Verstärkungsfäden
US4552620A (en) * 1983-09-19 1985-11-12 Beloit Corporation Paper machine belt
JPS6081391A (ja) * 1983-10-07 1985-05-09 三菱重工業株式会社 抄紙用エンドレス・ベルト

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2358939B1 (de) 2008-11-19 2015-04-29 Voith Patent GmbH Papiermaschinenbespannung und verfahren zu deren herstellung
DE102011007291A1 (de) 2011-04-13 2012-10-18 Voith Patent Gmbh Verfahren zur Herstellung eines Moduls, insbesondere Endlosmoduls, für eine Papiermaschinenbespannung
WO2012140046A1 (de) 2011-04-13 2012-10-18 Voith Patent Gmbh Verfahren zur herstellung eines moduls, insbesondere endlosmoduls, für eine papiermaschinenbespannung und endlosmodul

Also Published As

Publication number Publication date
ES2015284B3 (es) 1990-08-16
US4948658A (en) 1990-08-14
FI882245A0 (fi) 1988-05-13
DE3762246D1 (de) 1990-05-17
FI882245A (fi) 1988-11-15
ATE51907T1 (de) 1990-04-15
FI89818C (fi) 1993-11-25
FI89818B (fi) 1993-08-13
EP0290653A1 (de) 1988-11-17
CA1322121C (en) 1993-09-14

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