EP0590288A1 - Toile de presse à plusieurs couches pour la presse humide d'une machine à papier - Google Patents

Toile de presse à plusieurs couches pour la presse humide d'une machine à papier Download PDF

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Publication number
EP0590288A1
EP0590288A1 EP93113084A EP93113084A EP0590288A1 EP 0590288 A1 EP0590288 A1 EP 0590288A1 EP 93113084 A EP93113084 A EP 93113084A EP 93113084 A EP93113084 A EP 93113084A EP 0590288 A1 EP0590288 A1 EP 0590288A1
Authority
EP
European Patent Office
Prior art keywords
threads
screen according
press screen
water reservoir
fabric
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
EP93113084A
Other languages
German (de)
English (en)
Other versions
EP0590288B1 (fr
Inventor
Franz-Ferdinand Dipl.-Kfm. Kufferath
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.)
KUFFERATH FRANZ FERDINAND DIPL
Kufferath Franz-Ferdinand Dipl-Kfm
Original Assignee
KUFFERATH FRANZ FERDINAND DIPL
Kufferath Franz-Ferdinand Dipl-Kfm
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 KUFFERATH FRANZ FERDINAND DIPL, Kufferath Franz-Ferdinand Dipl-Kfm filed Critical KUFFERATH FRANZ FERDINAND DIPL
Publication of EP0590288A1 publication Critical patent/EP0590288A1/fr
Application granted granted Critical
Publication of EP0590288B1 publication Critical patent/EP0590288B1/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
    • 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
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00Paper making and fiber liberation
    • Y10S162/90Papermaking press felts
    • 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
    • Y10T442/3114Cross-sectional configuration of the strand material is other than circular
    • 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]
    • Y10T442/3472Woven fabric including an additional woven fabric layer
    • Y10T442/3528Three or more fabric layers

Definitions

  • the invention relates to a multi-layer press screen for wet pressing a paper machine.
  • the invention has for its object to improve the known press screens of the type mentioned. This object is achieved by a press screen with the features of claim 1.
  • the water storage integrated into the fabric of the press screen prevents due to its capillary and / or adhesive property that the water taken up by the press belt in the nip of a wet press does not prematurely after the press screen emerges from the wet press by a so-called film splitting on a guide roller or the like or under the influence of centrifugal force is given off during a deflection, rather can be transported to a drainage station, which is formed, for example, by a pipe suction device.
  • An early release of water can lead to spraying and the formation of water mist in the wet press, which can be disruptive to the manufacturing process due to the formation of drops and the like.
  • the water reservoir is formed by additional threads running in the transverse direction of the sieve and / or in the longitudinal direction of the sieve, wherein these threads can be included in at least one of the sieve layers or can also form an additional layer, which is preferably designed such that it is highly capillary and has a high wettable surface.
  • Multifilament yarns, staple fiber yarns, micro yarns, i.e. yarns in the titer range below 1 dtex, but also monofilament profile threads with an increased surface area are therefore particularly suitable for the water reservoir. All of these threads can be very thin because, due to the distance from the contact surface for the web to be dewatered and from the machine running side, they are protected against wear by external influences.
  • the threads of the water reservoir can be arranged in one or more weft layers and / or warp layers. Furthermore, it is not necessary to form the water reservoir exclusively from multifilament yarns, staple fiber yarns and micro yarns. Alternating monofilament and multifilament threads can also follow one another.
  • the screen fabric is designed so that its water permeability decreases according to a double funnel from the contact surface for the web to be dewatered towards the water reservoir, has its smallest value in the area of the water reservoir and increases again from here to the machine running side. This results in a particularly high drainage capacity of the screen fabric, especially since the water storage tank has a retention capacity counteracts a so-called rewetting of the web, ie a release of water to the web after leaving the press nip.
  • the upper layer on the preferably monoplan-shaped upper side of which the web to be dewatered comes into contact, advantageously has at least no significant change in its hydraulic drainage resistance under the pressure load in a press which allows dimensional stability. This ensures that the lowest possible hydraulic drainage resistance is opposed to the water pressed out of the web in the press nip, which is important for absorbing the water in the press nip.
  • the top layer therefore consists of pressure-resistant, monofilament threads.
  • the monofilament longitudinal threads of the top layer can also have a rectangular, oval or dumbbell-shaped cross section instead of a round one, whereby the specific pressure load of the monofilament threads can be changed and the effective contact surface for the web can be changed, for example enlarged.
  • At least the longitudinal threads also consist of pressure-resistant, monofilament threads, which in addition to a round one also have a rectangular, oval or can have a hand-shaped cross-section, which, like the profile threads of the top layer, can change the specific pressure load of the threads and the effective running surface of the screen fabric.
  • the water retention capacity of the underlay can be increased if necessary by weaving threads twisted from monofilaments.
  • the monofilament threads are preferably made of a plastic such as PA 6.12 or PA 6.10, which has a water absorption of less than 6%.
  • a multi-layer press screen which instead of a press felt carries a web to be dewatered when it passes through a wet press of a paper or board machine, consists of an upper fabric designated as a whole with 1, the upper side of which forms the contact surface for the web to be dewatered, one as a whole with 2 designated sub-fabric, which forms the machine running side of the press screen and an intermediate layer 10 arranged between the two.
  • the upper fabric 1 is made in the embodiment, but can also be multi-layer. In the case of a multi-layer design, the lower layer adjacent to the intermediate fabric 3 would preferably be designed so that its hydraulic drainage resistance is greater than that of the upper layer.
  • the side of the upper fabric 1 forming the contact surface for the draining web is monoplan.
  • both the weft threads 4 and the warp threads 5 are monofilament threads made of pressure-resistant plastic, not only those with a circular cross section but also those with a larger surface area, for example monofilament threads with a rectangular, oval or dumbbell-shaped cross section. Such cross-sectional shapes reduce the specific pressure load on the threads and increase the effective size of the contact surface for the web to be dewatered.
  • the lower fabric 2 has an upper weft layer consisting of upper wefts 6 and a lower weft layer consisting of lower wefts 7.
  • Each of the sub-shots 7 is precisely aligned with one of the upper shots 6.
  • Warp threads 8 bind with the upper wefts 6 and the lower wefts 7 in such a way that the hydraulic drainage resistance of the lower layer of the lower fabric 2 is lower than that of the upper layer.
  • the inclusion of the warp threads 8 in the lower layer is therefore less than in the upper layer.
  • the binding is chosen so that it supports the achievement of a dimensional stability of the lower fabric 2 under the pressure prevailing in the nip of a wet press.
  • the dimensional stability of the lower fabric 2 which ensures that the space made available for the absorption of water is not significantly reduced in the press nip, is achieved by using monofilament threads.
  • These threads can have a rectangular, oval or dumbbell-shaped cross-section instead of the round one, which reduces the specific pressure load of the threads and increases the effective machine running surface.
  • the intermediate layer 10 is arranged, which in the exemplary embodiment consists exclusively of weft threads 11, which are arranged in a single layer.
  • the intermediate layer 10 can consist of a single or multi-layer fabric, that is to say both of weft threads and of warp threads.
  • all weft threads 11 are multifilament threads. If monofilament threads are also used, then preferably monofilament and multifilament threads follow one another alternately. Monofilament threads in the intermediate layer 10 have a positive effect on the desired incompressibility of the entire press screen.
  • the intermediate layer 10 is highly capillary and adhesive for water. It therefore forms a water reservoir at a distance from the top surface of the upper fabric 1 forming the contact surface for the web to be dewatered, which has a very small storage capacity, but only releases the water stored in it at very high forces.
  • the intermediate layer 10 therefore effectively prevents the water taken up by the press screen in the nip of a press from being released prematurely after leaving the press nip, either by centrifugal forces when deflected by a guide roller or by film splitting on a roller surface.
  • the intermediate layer 10 which has the effect of a compacted fabric layer with an extremely high wettable surface and fine capillary mesh openings, has the highest hydraulic drainage resistance. Therefore, the hydraulic drainage resistance of the contact surface for the web to be dewatered top of the upper fabric 1 to the intermediate layer 10 to where it has its greatest value, and then decreases again to the machine running side. It is therefore comparable to a double funnel.
  • the size of the openings serving for dewatering decreases according to a double funnel from the contact surface for the web to be dewatered to the intermediate layer 10 and then again to the machine running side, that is to say the underside of the lower fabric 2.

Landscapes

  • Paper (AREA)
  • Braking Arrangements (AREA)
  • Woven Fabrics (AREA)
  • Inorganic Insulating Materials (AREA)
  • Sheet Holders (AREA)
EP93113084A 1992-09-26 1993-08-16 Toile de presse à plusieurs couches pour la presse humide d'une machine à papier Expired - Lifetime EP0590288B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4232319A DE4232319A1 (de) 1992-09-26 1992-09-26 Mehrlagiges Pressensieb für Naßpressen einer Papiermaschine
DE4232319 1992-09-26

Publications (2)

Publication Number Publication Date
EP0590288A1 true EP0590288A1 (fr) 1994-04-06
EP0590288B1 EP0590288B1 (fr) 1995-11-02

Family

ID=6468922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93113084A Expired - Lifetime EP0590288B1 (fr) 1992-09-26 1993-08-16 Toile de presse à plusieurs couches pour la presse humide d'une machine à papier

Country Status (10)

Country Link
US (1) US5601691A (fr)
EP (1) EP0590288B1 (fr)
JP (1) JPH06294089A (fr)
AT (1) ATE129763T1 (fr)
CA (1) CA2106362A1 (fr)
DE (2) DE4232319A1 (fr)
DK (1) DK0590288T3 (fr)
ES (1) ES2079930T3 (fr)
FI (1) FI97158C (fr)
NO (1) NO304995B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694637A1 (fr) * 1994-07-01 1996-01-31 HUTTER & SCHRANTZ Papiermaschinensiebe Ges.m.b.H. Tissu d'habillage pour machines à papier ou similaires
WO1997028308A1 (fr) * 1996-02-02 1997-08-07 Weavexx Corporation Tissu pour l'industrie du papier, a fils de forme ovale
EP0806519A1 (fr) * 1996-05-10 1997-11-12 Jwi Ltd Toile à faible perméabilité à l'air pour machine à papier
EP1013820A2 (fr) * 1998-12-22 2000-06-28 Voith Fabrics Heidenheim GmbH & Co.KG Tissu composite pour la fabrication du papier comportant au moins trois couches
DE202013104888U1 (de) 2013-10-31 2015-02-02 Heimbach Gmbh & Co. Kg Durchströmbare Bespannung für Papier- oder Zellstoffentwässerungsmaschinen sowie deren Verwendung

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423436A1 (de) * 1994-07-05 1996-01-11 Franz F Kufferath Verfahren zur Entwässerung einer Papierbahn und Vorrichtung zur Durchführung des Verfahrens
DE9416520U1 (de) * 1994-10-14 1996-02-15 Wuertt Filztuchfab Preßfilz für die Entwässerung
US5787936A (en) * 1996-11-22 1998-08-04 Asten, Inc. Laminated papermaker's fabric having projecting seaming loops
US6030908A (en) * 1998-03-16 2000-02-29 Jwi Ltd. Multilayer porous fabric
JP3938817B2 (ja) * 1999-02-16 2007-06-27 日本フイルコン株式会社 工業用織物の接合用ループとこのループを用いた接合部
US6331341B1 (en) 1999-07-09 2001-12-18 Albany International Corp. Multiaxial press fabric having shaped yarns
US7059361B1 (en) * 2005-04-28 2006-06-13 Albany International Corp. Stable forming fabric with high fiber support
JP4828330B2 (ja) * 2006-07-07 2011-11-30 日本フイルコン株式会社 パルプマシン用プレスファブリック
CA2600307A1 (fr) * 2007-09-07 2009-03-07 Ralph Roemer Tissu de fabrication de non tisses files par fusion ou par voie seche, comprenant des fils profiles pour facilitation du lavage et resistance a la contamination
GB2495397A (en) * 2011-10-03 2013-04-10 Itex Fabrics Ltd Layered textile material and method of formation
EP3029187A4 (fr) * 2013-07-31 2017-05-10 Nippon Filcon Co., Ltd Tissu industriel formé par un tissu à chaîne double et à trame unique
DE102018123390A1 (de) 2018-09-24 2020-03-26 Voith Patent Gmbh Maschine und Verfahren zur Herstellung einer Faserstoffbahn
DE102018123389A1 (de) * 2018-09-24 2020-02-13 Voith Patent Gmbh Maschine und Verfahren zur Herstellung einer Faserstoffbahn

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346307A2 (fr) * 1988-06-09 1989-12-13 Nordiskafilt Ab Feutre humide pour machine à papier
US4941514A (en) * 1987-02-10 1990-07-17 Tamfeld Oy Ab Multi-weft paper machine cloth with intermediate layer selected to control permeability
EP0440076A2 (fr) * 1990-01-31 1991-08-07 Thomas Josef Heimbach GmbH & Co. Feutre de presse
DE4040861A1 (de) * 1990-12-20 1992-07-02 Munzinger Conrad & Cie Ag Pressfilz sowie verfahren zu dessen herstellung

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158984A (en) * 1962-08-10 1964-12-01 Lindsay Wire Weaving Co Porous fabric or structure and the method of making the same
US4162190A (en) * 1974-04-29 1979-07-24 Scapa-Porritt Limited Paper makers wet felts
US4199401A (en) * 1979-03-01 1980-04-22 Asten Group, Inc. Felt for papermaking machine
US4361618A (en) * 1981-05-18 1982-11-30 Ascoe Felts, Inc. Papermakers felt with improved drainage
US4633596A (en) * 1981-09-01 1987-01-06 Albany International Corp. Paper machine clothing
US4503113A (en) * 1982-03-12 1985-03-05 Huyck Corporation Papermaker felt with a three-layered base fabric
US4414263A (en) * 1982-07-09 1983-11-08 Atlanta Felt Company, Inc. Press felt
US4799998A (en) * 1983-08-01 1989-01-24 Albany International Corp. Papermachine clothing
FI72362C (fi) * 1983-10-03 1987-05-11 Tamfelt Oy Ab Foerfarande och medel foer att aostadkomma avlaegsnande av vatten i en press vid en pappersmaskin.
US4520059A (en) * 1983-12-16 1985-05-28 Engineered Yarns, Inc. Ionomer-coated yarns and their use in papermakers wet press felts
US4533594A (en) * 1983-12-16 1985-08-06 Porritts & Spencer Batt-on-mesh felt employing polyurethane-coated multifilaments in the cross-machine direction
DE3426264A1 (de) * 1984-07-17 1986-01-30 Franz F. 5160 Düren Kufferath Entwaeserungsband fuer pressen in der nasspartie einer papiermaschine
CA1277209C (fr) * 1986-11-28 1990-12-04 Dale B. Johnson Faconnage d'un tissu composite
US4705601A (en) * 1987-02-05 1987-11-10 B.I. Industries, Inc. Multi-ply paper forming fabric with ovate warp yarns in lowermost ply
US4943476A (en) * 1988-10-27 1990-07-24 Albany International Corp. Water removal on papermachine through riblet effect
US5097872A (en) * 1990-12-17 1992-03-24 Tamfelt, Inc. Woven work fabric with X-shaped monofilament yarns
US5360518A (en) * 1991-12-18 1994-11-01 Albany International Corp. Press fabrics for paper machines
US5366798A (en) * 1993-11-30 1994-11-22 Wangner Systems Corporation Multi-layered papermaking fabric having stabilized stacked weft yarn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4941514A (en) * 1987-02-10 1990-07-17 Tamfeld Oy Ab Multi-weft paper machine cloth with intermediate layer selected to control permeability
EP0346307A2 (fr) * 1988-06-09 1989-12-13 Nordiskafilt Ab Feutre humide pour machine à papier
EP0440076A2 (fr) * 1990-01-31 1991-08-07 Thomas Josef Heimbach GmbH & Co. Feutre de presse
DE4040861A1 (de) * 1990-12-20 1992-07-02 Munzinger Conrad & Cie Ag Pressfilz sowie verfahren zu dessen herstellung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694637A1 (fr) * 1994-07-01 1996-01-31 HUTTER & SCHRANTZ Papiermaschinensiebe Ges.m.b.H. Tissu d'habillage pour machines à papier ou similaires
WO1997028308A1 (fr) * 1996-02-02 1997-08-07 Weavexx Corporation Tissu pour l'industrie du papier, a fils de forme ovale
EP0806519A1 (fr) * 1996-05-10 1997-11-12 Jwi Ltd Toile à faible perméabilité à l'air pour machine à papier
EP1013820A2 (fr) * 1998-12-22 2000-06-28 Voith Fabrics Heidenheim GmbH & Co.KG Tissu composite pour la fabrication du papier comportant au moins trois couches
EP1013820A3 (fr) * 1998-12-22 2001-02-07 Voith Fabrics Heidenheim GmbH & Co.KG Tissu composite pour la fabrication du papier comportant au moins trois couches
DE202013104888U1 (de) 2013-10-31 2015-02-02 Heimbach Gmbh & Co. Kg Durchströmbare Bespannung für Papier- oder Zellstoffentwässerungsmaschinen sowie deren Verwendung

Also Published As

Publication number Publication date
NO933412L (no) 1994-03-28
FI934148A0 (fi) 1993-09-22
FI97158C (fi) 1996-10-25
CA2106362A1 (fr) 1994-03-27
ATE129763T1 (de) 1995-11-15
FI934148A (fi) 1994-03-27
DE4232319A1 (de) 1994-03-31
NO304995B1 (no) 1999-03-15
EP0590288B1 (fr) 1995-11-02
DE59300854D1 (de) 1995-12-07
DK0590288T3 (da) 1996-03-04
FI97158B (fi) 1996-07-15
US5601691A (en) 1997-02-11
ES2079930T3 (es) 1996-01-16
NO933412D0 (no) 1993-09-24
JPH06294089A (ja) 1994-10-21

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