EP0886002B1 - Technical fabric for paper-making machines - Google Patents

Technical fabric for paper-making machines Download PDF

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Publication number
EP0886002B1
EP0886002B1 EP97890111A EP97890111A EP0886002B1 EP 0886002 B1 EP0886002 B1 EP 0886002B1 EP 97890111 A EP97890111 A EP 97890111A EP 97890111 A EP97890111 A EP 97890111A EP 0886002 B1 EP0886002 B1 EP 0886002B1
Authority
EP
European Patent Office
Prior art keywords
fabric
weft threads
layer
weft
threads
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.)
Revoked
Application number
EP97890111A
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German (de)
French (fr)
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EP0886002A1 (en
Inventor
Harald Ing. Gampe
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.)
Cristini Forming Fabrics GmbH
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Cristini Forming Fabrics GmbH
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27148198&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0886002(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to AT0206095A priority Critical patent/AT403486B/en
Priority to ES97890111T priority patent/ES2205163T3/en
Priority to EP97890111A priority patent/EP0886002B1/en
Priority to DE59710615T priority patent/DE59710615D1/en
Priority to AT97890111T priority patent/ATE247740T1/en
Application filed by Cristini Forming Fabrics GmbH filed Critical Cristini Forming Fabrics GmbH
Priority to PT97890111T priority patent/PT886002E/en
Priority to US08/891,584 priority patent/US5944062A/en
Publication of EP0886002A1 publication Critical patent/EP0886002A1/en
Publication of EP0886002B1 publication Critical patent/EP0886002B1/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • 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

Definitions

  • the invention relates to a technical fabric for use in Paper machines, with wefts grouped together, the designed as a double-layer fabric with two layers of weft threads which are connected by common warp threads.
  • Such a fabric is known from EP 0 325 167 A.
  • This known fabric is a double-layer covering for the sheet formation area a paper machine that is a double layer Fabric that is bound with a longitudinal thread system. Cross threads of the lower layer are woven in pairs in parallel and the cross threads of the upper layer are above or in between arranged.
  • the invention further relates to a technical fabric for use in paper machines, with weft threads combined in groups, which is designed as a three-layer fabric with three layers of weft threads, which are connected by common warp threads.
  • a technical fabric for use in paper machines, with weft threads combined in groups, which is designed as a three-layer fabric with three layers of weft threads, which are connected by common warp threads.
  • Such a fabric is known from AT-393 521 B and EP 0 712 957 A.
  • this fabric is designed in such a way that at least one weft layer within the weave repeat has weft threads that run parallel to one another, lie against one another and have the same integration into the fabric.
  • Fig. 1 is a tissue section in the longitudinal direction of a double layer Fabric shown. With this fabric, the weft threads 1a ' to 7a 'and 1a "to 7a" of the upper layer and the weft threads 1 b to 7b of the lower layer and tied by warp threads K.
  • the weft threads 1a 'to are 7a 'and the weft threads 1a "to 7a" of the upper layer are arranged in pairs.
  • Fig. 2 is the longitudinal section of a three-layer fabric and in Fig. Figure 2A shows the top layer weave pattern.
  • the weft threads the top layer of the fabric are arranged in pairs Weft threads 1a ', 1a "; 2a', 2a" to 27a ', 27a "; 28a', 28a” are formed.
  • the weft threads 1b to 14b of the middle layer and the weft threads 1c through 14c of the bottom layer of the fabric of Figs. 2, 2A are by Warp threads K, which are labeled K1 to K14 in FIG. 2A, are bound.
  • the weft threads 1b to 14b are the middle layer parallel to each other, lying against each other and the same integration into the weft threads 1b ', 1b "to 14b ', 14b".
  • 4 and 4A show a three-layer fabric in which the lower Position parallel to each other, lying against each other and the same weft threads 1c ', 1c "in the fabric to 14c ', 14c ".
  • the fabric according to the invention gives a number of advantages. Some of these are discussed below with respect to three-ply fabrics called.
  • Thread groups running in the longitudinal direction is the The number of support points formed by these threads doubled and thus both the total bearing area is increased and the surface structure refined.
  • the diameters of the monofilaments within the thread groups from pairs Threads are preferably chosen to be smaller than those correspondingly Threads in known fabrics. This generally means that Use of thread groups running in the transverse direction for a reduction the total fabric thickness.
  • the advantage of this comparatively lower tissue thickness lies in a lower storage capacity of the Tissue construction, which in turn has a reduced tendency to carry fluid (one for the papermaker under the concept of "Waserschleppens" known problem) entails. This decreased The tendency of fluid entrainment can also occur in individual cases a reduced power absorption and thus a reduction in the necessary Cause energy expenditure during use.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Woven Fabrics (AREA)
  • Replacement Of Web Rolls (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

In an engineering textile for application in paper machines, the weft and/or warp threads are arranged in groups, and, within the pattern repeat, at least a some of the weft and/or the warp threads lie adjacent to one another and have the same bonding into the textile.

Description

Die Erfindung betrifft ein technisches Gewebe für den Einsatz in Papiermaschinen, mit in Gruppen zusammengefassten Schussfäden, das als doppellagiges Gewebe mit zwei Lagen von Schussfäden ausgebildet ist, die durch gemeinsame Kettfäden verbunden sind.The invention relates to a technical fabric for use in Paper machines, with wefts grouped together, the designed as a double-layer fabric with two layers of weft threads which are connected by common warp threads.

Ein derartiges Gewebe ist aus der EP 0 325 167 A bekannt. Dieses bekannte Gewebe ist eine doppellagige Bespannung für den Blattbildungsbereich einer Papiermaschine, bei dem es sich um ein doppellagiges Gewebe handelt, das mit einem Längsfadensystem gebunden ist. Dabei sind Querfäden der unteren Lage paarweise parallel eingewoben und die Querfäden der oberen Lage sind darüber bzw. dazwischen angeordnet.Such a fabric is known from EP 0 325 167 A. This known fabric is a double-layer covering for the sheet formation area a paper machine that is a double layer Fabric that is bound with a longitudinal thread system. Cross threads of the lower layer are woven in pairs in parallel and the cross threads of the upper layer are above or in between arranged.

Auf Grund theoretischer Überlegungen und praktischer Versuche wurde nun gefunden, dass eine wesentliche Verbesserung von technischen Geweben für den Einsatz in Papiermaschinen, mit in Gruppen zusammengefassten Schuss- und/oder Kettfäden der eingangs genannten Gattung erreicht werden kann, wenn erfindungsgemäß die obere Schusslage innerhalb des Bindungsrapports parallel zueinander verlaufende, aneinander anliegende und die gleiche Einbindung in das Gewebe besitzende Schussfäden aufweist. Based on theoretical considerations and practical tests now found that a significant improvement in technical Fabrics for use in paper machines, with grouped together Weft and / or warp threads of the aforementioned type can be achieved if, according to the invention, the upper shot position parallel to each other within the binding repeat, adjacent and the same integration into the tissue possessing weft threads.

Die Erfindung betrifft weiters ein technisches Gewebe für den Einsatz in Papiermaschinen, mit in Gruppen zusammengefassten Schussfäden, das als dreilagiges Gewebe mit drei Lagen von Schussfäden ausgebildet ist, die durch gemeinsame Kettfäden verbunden sind.
Ein derartiges Gewebe ist aus der AT-393 521 B und der EP 0 712 957 A bekannt.
Dieses Gewebe ist erfindungsgemäß so ausgebildet, dass wenigstens eine Schusslage innerhalb des Bindungsrapports parallel zueinander verlaufende, aneinander anliegende und die gleiche Einbindung in das Gewebe besitzende Schussfäden aufweist.The invention further relates to a technical fabric for use in paper machines, with weft threads combined in groups, which is designed as a three-layer fabric with three layers of weft threads, which are connected by common warp threads.
Such a fabric is known from AT-393 521 B and EP 0 712 957 A.
According to the invention, this fabric is designed in such a way that at least one weft layer within the weave repeat has weft threads that run parallel to one another, lie against one another and have the same integration into the fabric.

Nachstehend wird die Erfindung an Hand von in den Zeichnungen dargestellten Ausführungsbeispielen näher beschrieben,The invention is illustrated below with reference to the drawings Described embodiments in more detail,

Es zeigt:

  • Fig. 1 im Längsschnitt ein doppellagiges Gewebe, bei dem die Schussfäden der oberen Lage je zwei parallel zueinander verlaufende Schussfäden sind;
  • Fig. 2 ein dreilagiges Gewebe, bei dem die Schussfäden der oberen Lage je zwei parallel zueinander verlaufende Schussfäden sind;
  • Fig. 2A das Bindungsmuster der oberen Lage des Gewebes von Fig. 2;
  • Fig. 3 ein dreilagiges Gewebe, bei dem die Schussfäden der mittleren Lage je zwei parallel zueinander verlaufende Schussfäden sind;
  • Fig. 3A das Bindungsmuster der mittleren Lage des Gewebes von Fig. 3;
  • Fig. 4 ein dreilagiges Gewebe, bei dem die Schussfäden der unteren Lage je zwei parallel zueinander verlaufende Schussfäden sind, und
  • Fig. 4A das Bindungsmuster der unteren Lage des Gewebe von Fig. 4.
    • It shows:
  • 1 shows a longitudinal section of a double-layer fabric, in which the weft threads of the upper layer are each two weft threads running parallel to one another;
  • 2 shows a three-layer fabric in which the weft threads of the upper layer are two weft threads running parallel to one another;
  • Figure 2A shows the weave pattern of the top layer of the fabric of Figure 2;
  • 3 shows a three-layer fabric in which the weft threads of the middle layer are two weft threads running parallel to one another;
  • Figure 3A shows the weave pattern of the middle layer of the fabric of Figure 3;
  • Fig. 4 is a three-layer fabric, in which the weft threads of the lower layer are each two parallel weft threads, and
  • 4A shows the weave pattern of the bottom layer of the fabric of FIG. 4.

    • In Fig. 1 ist ein Gewebeschnitt in Längsrichtung eines doppellagigen Gewebes dargestellt. Bei diesem Gewebe werden die Schussfäden 1a' bis 7a' und 1a" bis 7a" der oberen Lage und die Schussfäden 1 b bis 7b der unteren Lage und durch Kettfäden K abgebunden.In Fig. 1 is a tissue section in the longitudinal direction of a double layer Fabric shown. With this fabric, the weft threads 1a ' to 7a 'and 1a "to 7a" of the upper layer and the weft threads 1 b to 7b of the lower layer and tied by warp threads K.

    Bei dieser Ausführungsform des Gewebes sind die Schussfäden 1a' bis 7a' und die Schussfäden 1a" bis 7a" der oberen Lage paarweise angeordnet.In this embodiment of the fabric, the weft threads 1a 'to are 7a 'and the weft threads 1a "to 7a" of the upper layer are arranged in pairs.

    In Fig. 2 ist der Längsschnitt eines dreilagigen Gewebes und in Fig. 2A das Bindungsmuster der oberen Lage dargestellt. Die Schussfäden der oberen Lage des Gewebes werden von je paarweise angeordneten Schussfäden 1a', 1a"; 2a', 2a" bis 27a', 27a"; 28a', 28a" gebildet. Die Schussfäden 1b bis 14b der mittleren Lage und die Schussfäden 1c bis 14c der unteren Lage des Gewebes von Fig. 2, 2A werden durch Kettfäden K, die in Fig. 2A mit K1 bis K14 bezeichnet sind, gebunden.In Fig. 2 is the longitudinal section of a three-layer fabric and in Fig. Figure 2A shows the top layer weave pattern. The weft threads the top layer of the fabric are arranged in pairs Weft threads 1a ', 1a "; 2a', 2a" to 27a ', 27a "; 28a', 28a" are formed. The weft threads 1b to 14b of the middle layer and the weft threads 1c through 14c of the bottom layer of the fabric of Figs. 2, 2A are by Warp threads K, which are labeled K1 to K14 in FIG. 2A, are bound.

    Beim Ausführungsbeispiel eines dreilagigen Gewebes, das in den Fig. 3 und Fig. 3A gezeigt ist, sind die Schussfäden 1b bis 14b der mittleren Lage parallel zueinander verlaufende, aneinander liegende und die gleiche Einbindung in das Gewebe besitzende Schussfäden 1b', 1b" bis 14b', 14b".In the embodiment of a three-layer fabric, which is shown in FIGS. 3 and 3A, the weft threads 1b to 14b are the middle layer parallel to each other, lying against each other and the same integration into the weft threads 1b ', 1b "to 14b ', 14b".

    Die Fig. 4 und 4A zeigen ein dreilagiges Gewebe, bei dem die untere Lage parallel zueinander verlaufende, aneinander liegende und die gleiche Einbindung in das Gewebe aufweisende Schussfäden 1c', 1c" bis 14c', 14c" besitzt.4 and 4A show a three-layer fabric in which the lower Position parallel to each other, lying against each other and the same weft threads 1c ', 1c "in the fabric to 14c ', 14c ".

    Das Gewebe gemäß der Erfindung ergibt eine Vielzahl von Vorteilen. Einige davon werden nachfolgend mit Bezug auf dreilagige Gewebe genannt.The fabric according to the invention gives a number of advantages. Some of these are discussed below with respect to three-ply fabrics called.

    Durch den Einsatz von in Querrichtung (Schussrichtung) verlaufenden, erfindungsgemäß ausgebildeten Fadengruppen auf der Gewebeoberseite, bei welchen Fadengruppen innerhalb des Bindungsrapportes wenigstens ein Teil der Schussfäden aneinander liegt und die gleiche Einbindung in das Gewebe aufweist, wird die Anzahl der in Querrichtung verlaufenden Unterstützungseinheiten, die zusammen mit den in Längsrichtung (Kettrichtung) verlaufenden Trageflächen die Auflagefläche für das zu entwässernde Produkt bilden, vervielfacht. Die dadurch erhaltene, wesentlich größere Gesamttragefläche begünstigt beispielsweise die gleichförmige Blattbildung bei der Papierherstellung.Through the use of cross-wise (weft) Thread groups designed according to the invention on the top of the fabric, at which thread groups within the weave repeat at least some of the weft threads lie against each other and the same integration has in the tissue, the number of those running in the transverse direction Support units, along with those in the longitudinal direction (Warp direction) running surfaces the support surface for the product to be dewatered multiplied. The result For example, the much larger total floor space that is preserved favors uniform sheet formation in papermaking.

    Durch den Einsatz von in Querrichtung verlaufenden Fadengruppen in der Gewebemittellage wird eine schonende Entwässerung gefördert. Eine gleichmäßige Steuerung der Dämpfung ist möglich, da die Entwässerungskanäle im Vergleich zu den bisher bekannten Konstruktionen deutlich feiner ausgeführt sind.Through the use of transverse thread groups in Gentle drainage is promoted in the fabric layer. An even control of the damping is possible because the drainage channels compared to the previously known constructions are much finer.

    Durch den Einsatz von in Querrichtung verlaufenden Fadengruppen auf der Gewebeunterseite kann eine Erhöhung des Abriebpotentiales und somit eine Verlängerung der Lebensdauer bewirkt werden.Through the use of thread groups running in the transverse direction the underside of the fabric can increase the abrasion potential and thus an extension of the lifespan can be effected.

    Durch den im Rahmen der Erfindung ebenfalls möglichen Einsatz von in Längsrichtung (Kettrichtung) verlaufenden Fadengruppen wird die Anzahl der durch diese Fäden gebildeten Tragepunkte verdoppelt und somit sowohl die Gesamttragefläche vergrößert als auch die Oberflächenstruktur verfeinert.The use of in which is also possible within the scope of the invention Thread groups running in the longitudinal direction (warp direction) is the The number of support points formed by these threads doubled and thus both the total bearing area is increased and the surface structure refined.

    Die Durchmesser der Monofile innerhalb der Fadengruppen aus paarweisen Fäden werden bevorzugt geringer gewählt als jene entsprechender Fäden in bekannten Geweben. Dadurch kommt es generell beim Einsatz von in Querrichtung verlaufenen Fadengruppen zu einer Reduktion der Gesamtgewebedicke. Der Vorteil dieser vergleichsweise niedrigeren Gewebedicke liegt in einer geringeren Speicherkraft der Gewebekonstruktion, die wiederum eine verringerte Neigung zur Flüssigkeitsmitnahme (ein für den Papiermacher unter dem Begriff des "Waserschleppens" bekanntes Problem) nach sich zieht. Diese verringerte Neigung der Flüssigkeitsmitnahme kann auch in einzelnen Fällen eine verminderte Kraftaufnahme und somit eine Reduzierung des nötigen Energieaufwandes beim Einsatz bewirken.The diameters of the monofilaments within the thread groups from pairs Threads are preferably chosen to be smaller than those correspondingly Threads in known fabrics. This generally means that Use of thread groups running in the transverse direction for a reduction the total fabric thickness. The advantage of this comparatively lower tissue thickness lies in a lower storage capacity of the Tissue construction, which in turn has a reduced tendency to carry fluid (one for the papermaker under the concept of "Waserschleppens" known problem) entails. This decreased The tendency of fluid entrainment can also occur in individual cases a reduced power absorption and thus a reduction in the necessary Cause energy expenditure during use.

    Claims (2)

    1. Technical fabric for the use in paper making machines, with weft threads combined to groups, which is designed as double-layer fabric having two layers of weft threads (1,2), which are bound by common warp threads (K), characterized in that the upper layer of weft within the binding pattern repeat comprises mutually parallel weft threads (1a' 1a", 2a', 2a"...) lying against one another and having the identical binding pattern into the fabric.
    2. Technical fabric for the use in paper making machines, with weft threads combined to groups, which is designed as three-layer fabric having three layers of weft threads (1,2), which are bound by common warp threads (K), characterized in that at least one layer of weft within the binding pattern repeat comprises mutually parallel weft threads (1a', 1a"...; 1b'...; 1c' ...) lying against one another and having the identical binding pattern into the fabric.
    EP97890111A 1995-12-19 1997-06-20 Technical fabric for paper-making machines Revoked EP0886002B1 (en)

    Priority Applications (7)

    Application Number Priority Date Filing Date Title
    AT0206095A AT403486B (en) 1995-12-19 1995-12-19 Engineering fabric for use in papermaking machines
    EP97890111A EP0886002B1 (en) 1995-12-19 1997-06-20 Technical fabric for paper-making machines
    DE59710615T DE59710615D1 (en) 1995-12-19 1997-06-20 Technical fabric for use in paper machines
    AT97890111T ATE247740T1 (en) 1995-12-19 1997-06-20 TECHNICAL FABRIC FOR USE IN PAPER MACHINES
    ES97890111T ES2205163T3 (en) 1995-12-19 1997-06-20 TECHNICAL FABRIC FOR EMPLOYMENT IN PAPER MACHINES.
    PT97890111T PT886002E (en) 1995-12-19 1997-06-20 TECHNICAL SCREEN FOR APPLICATION IN PAPER MACHINES
    US08/891,584 US5944062A (en) 1995-12-19 1997-07-11 Papermaking fabric with mutually contacting paired weft threads

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    AT0206095A AT403486B (en) 1995-12-19 1995-12-19 Engineering fabric for use in papermaking machines
    EP97890111A EP0886002B1 (en) 1995-12-19 1997-06-20 Technical fabric for paper-making machines
    US08/891,584 US5944062A (en) 1995-12-19 1997-07-11 Papermaking fabric with mutually contacting paired weft threads

    Publications (2)

    Publication Number Publication Date
    EP0886002A1 EP0886002A1 (en) 1998-12-23
    EP0886002B1 true EP0886002B1 (en) 2003-08-20

    Family

    ID=27148198

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97890111A Revoked EP0886002B1 (en) 1995-12-19 1997-06-20 Technical fabric for paper-making machines

    Country Status (6)

    Country Link
    US (1) US5944062A (en)
    EP (1) EP0886002B1 (en)
    AT (2) AT403486B (en)
    DE (1) DE59710615D1 (en)
    ES (1) ES2205163T3 (en)
    PT (1) PT886002E (en)

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    US7008512B2 (en) * 2002-11-21 2006-03-07 Albany International Corp. Fabric with three vertically stacked wefts with twinned forming wefts
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    US6883556B2 (en) * 2002-12-30 2005-04-26 Albany International Corp. Double cross parallel binder fabric
    EP1629152B1 (en) * 2003-05-23 2009-04-15 Voith Patent GmbH High shaft forming fabrics
    US7304006B2 (en) * 2004-06-24 2007-12-04 The Goodyear Tire & Rubber Company High tear interwoven belt fabric
    DE102004048432A1 (en) * 2004-10-05 2006-04-13 Voith Fabrics Patent Gmbh Multi-ply fabric with binodal MD yarn
    US7395840B2 (en) * 2005-05-26 2008-07-08 Nippon Filcon Co. Ltd. Industrial single-layer fabric having concave-convex surface
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    US8192317B2 (en) * 2006-11-22 2012-06-05 Veyance Technologies, Inc. Reinforced belt for powerturn applications
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    Also Published As

    Publication number Publication date
    US5944062A (en) 1999-08-31
    ATE247740T1 (en) 2003-09-15
    ATA206095A (en) 1997-07-15
    DE59710615D1 (en) 2003-09-25
    AT403486B (en) 1998-02-25
    EP0886002A1 (en) 1998-12-23
    PT886002E (en) 2004-01-30
    ES2205163T3 (en) 2004-05-01

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