EP0185177A1 - Composite web for a paper-making machine sieve - Google Patents

Composite web for a paper-making machine sieve Download PDF

Info

Publication number
EP0185177A1
EP0185177A1 EP19850113822 EP85113822A EP0185177A1 EP 0185177 A1 EP0185177 A1 EP 0185177A1 EP 19850113822 EP19850113822 EP 19850113822 EP 85113822 A EP85113822 A EP 85113822A EP 0185177 A1 EP0185177 A1 EP 0185177A1
Authority
EP
European Patent Office
Prior art keywords
fabric
threads
composite
binding
lower 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
EP19850113822
Other languages
German (de)
French (fr)
Other versions
EP0185177B1 (en
Inventor
Fritz Vöhringer
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.)
F Oberdorfer & Co KG Industriegewebe-Techni GmbH
Original Assignee
OBERDORFER F
F Oberdorfer & Co KG Industriegewebe-Technik 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
Application filed by OBERDORFER F, F Oberdorfer & Co KG Industriegewebe-Technik GmbH filed Critical OBERDORFER F
Priority to AT85113822T priority Critical patent/ATE42120T1/en
Publication of EP0185177A1 publication Critical patent/EP0185177A1/en
Application granted granted Critical
Publication of EP0185177B1 publication Critical patent/EP0185177B1/en
Expired legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to a composite fabric as a paper machine screen according to the preamble of claim 1.
  • the object of the invention is therefore to design the composite fabric of the type mentioned in such a way that it has a new type of lower fabric, with the aid of which the above-mentioned disadvantages are eliminated.
  • the lower fabric contains two groups of transverse threads, the first of which are interwoven in 1: 1 weave and the second in 1: n weave with the warp threads of the lower fabric, that successive transverse threads of different types of weave, based on form double offsets on the inside of the lower fabric, touch, and that the long n offsets form a wear plane on the outside, where n means odd numbers greater than 1.
  • the weave of the lower fabric is therefore determined in such a way that part of the transverse threads is interwoven with the longitudinal threads in a 1: 1 offset ratio and the other part in a 1: n offset ratio, where n is the number of longitudinal threads that are on the running side, i.e. the outside, spanned by the cranks of the 1: n cross threads.
  • n is the number of longitudinal threads that are on the running side, i.e. the outside, spanned by the cranks of the 1: n cross threads.
  • the inner sides of the lower fabric of known composite screens are shown; the bumps 1, 2 and 3 are the contact points for the upper fabric. Since the longitudinal threads should not be exposed to wear, since otherwise the longitudinal stability is lost very quickly, the overlaps are generally transverse crankings.
  • Fig. 4 shows the inside of the lower fabric according to the invention. Since the upper fabric of the composite sieve according to the invention also has a simple weave, the contraction values can be coordinated with one another in such a way that no significant stresses arise between the upper and lower fabrics, regardless of the weft-running properties of the wear side of the lower fabric. Such composite screens therefore do not tend to form wrinkles.
  • the bottom fabric of the composite sieve according to the invention has 12 cross-bends 4, 5 on its inside, since this bottom fabric can be designed such that the longitudinal bends 6 and cross-bends 4, 5 of the inside lie almost in the same plane without the weft-running property of the barrel side being lost, the number of support points can be increased to 72. Practice shows, however, that 12 crossbends are sufficient as support points.
  • 5 and 6 the running sides of two composite screens according to the invention are shown. In the running side of FIG. 5, the wear thread 7 spans five longitudinal threads. The cranks are distributed so that they form left and right diagonals at the same angle. This particularly stabilizes the straight running of the paper machine screen.
  • the transverse cranks 8 extending over three longitudinal threads are distributed in a cross-body manner, as a result of which the same effect is achieved.
  • the number of 1: 1-bound cross threads is larger than that of 1: 3-bound cross threads.
  • FIG. 7 shows a complete composite screen of the type according to the invention, consisting of a fine, simple top fabric 9 and a coarse bottom fabric 10 of the type shown in FIG. 4. However, to illustrate the structure, the top fabric is only shown in part.
  • connection between the upper fabric and the lower fabric is made with weft threads 11. This binding technique is known per se.
  • FIGS. 8 and 9 The running side of the composite fabric according to the invention is shown in FIGS. 8 and 9, with FIG. 9 in particular showing the protrusion a of the wear threads over the longitudinal threads. It can be seen from this illustration that the wear cranks can wear out completely without the longitudinal threads being attacked, as a result of which the desired long running times of the paper machine screen are achieved.
  • FIG. 10 shows a possibility of breaking the diagonal formed by the wear offsets by attaching a binding cartridge B with a Z-diagnosis to the binding cartridge A with an S-diagonal.

Abstract

1. Composite web as paper-making machine fabric, consisting of a fine upper web having a simple binding and of a coarser lower web, characterized in that the lower web (10) is provided with two groups of cross threads, the first one of which is interweaved in 1:1 -binding and the second one of which is interweaved in 1:n -binding with warp threads of the lower wed, that the cross threads of different kind of binding following to one another contact each other forming on the inner surface of the lower wed double knuckles (5) and that the long n-nuckles (7) on the outer surface form an abrasive plain, wherein n means odd numbers greater than 1.

Description

Die Erfindung betrifft ein Verbundgewebe als Papiermaschinensieb gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a composite fabric as a paper machine screen according to the preamble of claim 1.

In letzter Zeit wurden viele Versuche unternommen, Verbundgewebe als Papiermaschinensiebe einzusetzen, die jedoch größtenteils erfolglos blieben. Das Versagen dieser Papiermaschinensiebe ist im wesentlichen auf die folgenden vier Ursachen zurückzuführen:

  • 1. Das feine Ober- oder Formiergewebe und das grobe Unter- oder Verschleißgewebe sind in ihrer Bindungsmechanik, beispielsweise was die Querkontraktion im Verhältnis zur Längsdehnung anbelangt, so verschieden, daß die Siebe nach kurzer Laufzeit in Falten laufen.
  • 2. Die unterschiedliche Querkontraktion verursacht hohe Spannungen in den Bindefäden, die nicht nur markierende Vertiefungen in der Sieboberfläche erzeugen, sondern in Verbindung mit den ständig im Betrieb auftretenden Lastwechseln die Bindefäden zerstören können.
  • 3. Einen wesentlichen Einfluß auf das Markierungsverhalten des Formiergewebes, also des Obergewebes, hat die Innenseite des Verschleißgewebes, also des Untergewebes. Die bisher verwendeten Untergewebe haben auf ihrer Innenseite zu wenig Tragepunkte, auf denen sich das Formiergewebe abstützen kann. Dieses sackt wegen der relativ großen Abstände zwischen den Tragepunkten durch und bildet ein Muster von Vertiefungen bzw. Erhöhungen, die sich zu den Bindepunkt-Vertiefungen addieren und dadurch im Papier starke Markierungen erzeugen.
  • 4. Die Laufzeiten solcher Verbundsiebe sind deutlich geringer als die Laufzeiten vergleichbarer doppellagiger Siebe, deren Herstellung im übrigen weniger aufwendig ist.
Many attempts have recently been made to use composite fabrics as paper machine screens, but these have largely been unsuccessful. The failure of these paper machine screens is essentially due to the following four causes:
  • 1. The fine top or forming fabric and the coarse bottom or wear fabric are so different in their binding mechanics, for example as far as the transverse contraction in relation to the longitudinal expansion is concerned, that the screens run into folds after a short run time.
  • 2. The different transverse contraction causes high tensions in the binding threads, which not only produce marking depressions in the surface of the sieve, but can also destroy the binding threads in connection with the load changes that occur constantly during operation.
  • 3. The inside of the wearing fabric, that is to say the lower fabric, has a significant influence on the marking behavior of the forming fabric, that is to say the upper fabric. The inner fabric used up to now has too few support points on which the forming fabric can be supported. This sags due to the relatively large distances between the carrying points and forms a pattern of depressions or elevations, which add up to the binding point depressions and thereby create strong markings in the paper.
  • 4. The running times of such composite sieves are significantly shorter than the running times of comparable double-layer sieves, the manufacture of which is otherwise less complex.

Die Aufgabe der Erfindung besteht deshalb darin, das Verbundgewebe der genannten Art so auszubilden, daß es ein neuartiges Untergewebe aufweist, mit dessen Hilfe die obengenannten Nachteile beseitigt werden.The object of the invention is therefore to design the composite fabric of the type mentioned in such a way that it has a new type of lower fabric, with the aid of which the above-mentioned disadvantages are eliminated.

Zu diesem Zweck wird erfindungsgemäß vorgeschlagen, daß das Untergewebe zwei Gruppen von Querfäden enthält, deren erste in 1:1-Bindung und deren zweite in 1:n-Bindung mit den Kettfäden des Untergewebes verwoben sind, daß sich aufeinanderfolgende Querfäden unterschiedlichster Bindungsart, die auf der Innenseite des Untergewebes Doppelkröpfungen bilden, berühren, und daß die langen n-Kröpfungen auf der Außenseite eine Verschleißebene bilden, wobei n ungerade Zahlen größer als 1 bedeutet.For this purpose, it is proposed according to the invention that the lower fabric contains two groups of transverse threads, the first of which are interwoven in 1: 1 weave and the second in 1: n weave with the warp threads of the lower fabric, that successive transverse threads of different types of weave, based on form double offsets on the inside of the lower fabric, touch, and that the long n offsets form a wear plane on the outside, where n means odd numbers greater than 1.

Die Bindung des Untergewebes ist demnach so festgelegt, daß ein Teil der Querfäden mit den Längsfäden im Kröpfungsverhältnis 1:1 und der andere Teil im Kröpfungsverhältnis 1:n verwoben ist, wobei n die Anzahl der Längsfäden bedeutet, die auf der Laufseite, d.h. der Außenseite, von den Kröpfungen der 1:n-Querfäden überspannt werden. Auf diese Weise berühren sich aufeinanderfolgende Querfäden unterschiedlicher Bindungsart und bilden auf der Innenseite Doppelkröpfungen.The weave of the lower fabric is therefore determined in such a way that part of the transverse threads is interwoven with the longitudinal threads in a 1: 1 offset ratio and the other part in a 1: n offset ratio, where n is the number of longitudinal threads that are on the running side, i.e. the outside, spanned by the cranks of the 1: n cross threads. In this way, successive cross threads of different types of weave touch and form double offsets on the inside.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous embodiments of the invention are characterized in the subclaims.

Die Erfindung wird nachfolgend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. In der Zeichnung zeigen:

  • Figur 1, 2 und 3 eine Draufsicht von Innenseiten der Untergewebe von bekannten Verbundsieben,
  • Figur 4 eine Draufsicht der Innenseite des erfindungsgemäßen Untergewebes,
  • Figur 5 und 6 Draufsichten der Außenseite (Laufseite) erfindungsgemäßer Verbundsiebe,
  • Figur 7 eine Draufsicht auf ein vollständiges Verbundsieb aus Ober- und Untergewebe, wobei das feinere Obergewebe nur teilweise dargestellt ist,
  • Figur 8 eine räumliche Darstellung der Laufseite des Untergewebes,
  • Figur 9 eine schematische Darstellung des Verlaufs der Verschleißfäden über den Längsfäden, und
  • Figur 10 zwei Bindungspatronen des erfindungsgemäßen Gewebes.
The invention is explained in more detail below with reference to exemplary embodiments shown in the drawing. The drawing shows:
  • FIGS. 1, 2 and 3 show a top view from the inside of the lower fabrics of known composite screens,
  • FIG. 4 shows a top view of the inside of the lower fabric according to the invention,
  • 5 and 6 are top views of the outside (running side) of composite screens according to the invention,
  • FIG. 7 shows a plan view of a complete composite screen made of upper and lower fabrics, the finer upper fabric being shown only partially,
  • FIG. 8 shows a spatial representation of the running side of the lower fabric,
  • Figure 9 is a schematic representation of the course of the wear threads over the longitudinal threads, and
  • Figure 10 shows two binding cartridges of the fabric according to the invention.

In den Fig. 1, 2 und 3 sind die Innenseiten der Untergewebe von bekannten Verbundsieben dargestellt; die dick gezeichneten Kröpfungen 1,2 und 3 sind die Auflagepunkte für das Obergewebe. Da die Längsfäden dem Verschleiß nicht ausgesetzt werden sollen, da anderenfalls die Längsstabilität sehr schnell verloren geht, sind die Auflage-Kröpfungen in der Regel Querkröpfungen.1, 2 and 3, the inner sides of the lower fabric of known composite screens are shown; the bumps 1, 2 and 3 are the contact points for the upper fabric. Since the longitudinal threads should not be exposed to wear, since otherwise the longitudinal stability is lost very quickly, the overlaps are generally transverse crankings.

Fig. 4 zeigt die Innenseite des erfindungsgemäßen Untergewebes. Da das Obergewebe des erfindungsgemäßen Verbundsiebes ebenfalls eine einfache Bindung hat, lassen sich die Kontraktionswerte so aufeinander abstimmen, daß zwischen Ober- und Untergewebe keine nennenswerten Spannungen entstehen, und zwar unabhängig von der Schußläufereigenschaft der Verschleißseite des Untergewebes. Solche Verbundsiebe neigen deshalb nicht zur Faltenbildung.Fig. 4 shows the inside of the lower fabric according to the invention. Since the upper fabric of the composite sieve according to the invention also has a simple weave, the contraction values can be coordinated with one another in such a way that no significant stresses arise between the upper and lower fabrics, regardless of the weft-running properties of the wear side of the lower fabric. Such composite screens therefore do not tend to form wrinkles.

Das Untergewebe des erfindungsgemäßen Verbundsiebes hat auf seiner Innenseite 12 Querkröpfungen 4, 5. Da dieses Untergewebe so gestaltet werden kann, daß die Längskröpfungen 6 und Querkröpfungen 4, 5 der Innenseite nahezu in der gleichen Ebene liegen, ohne daß die Schußläufereigenschaft der Laufseite verloren geht, kann die Anzahl der Auflagepunkte auf 72 gesteigert werden. Die Praxis zeigt jedoch, daß 12 Querkröpfungen als Auflagepunkte ausreichen. In den Fig. 5 und 6 sind die Laufseiten zweier erfindungsgemäßer Verbundsiebe dargestellt. Bei der Laufseite von Fig. 5 überspannt der Verschleißfaden 7 fünf Längsfäden. Die Kröpfungen sind so verteilt, daß sie Links- und Rechtsdiagonalen unter gleichem Winkel bilden. Dadurch wird insbesondere der Geradeauslauf des Papiermaschinensiebes stabilisiert.The bottom fabric of the composite sieve according to the invention has 12 cross-bends 4, 5 on its inside, since this bottom fabric can be designed such that the longitudinal bends 6 and cross-bends 4, 5 of the inside lie almost in the same plane without the weft-running property of the barrel side being lost, the number of support points can be increased to 72. Practice shows, however, that 12 crossbends are sufficient as support points. 5 and 6, the running sides of two composite screens according to the invention are shown. In the running side of FIG. 5, the wear thread 7 spans five longitudinal threads. The cranks are distributed so that they form left and right diagonals at the same angle. This particularly stabilizes the straight running of the paper machine screen.

In Fig. 6 sind die über drei Längsfäden verlaufenden Querkröpfungen 8 kreuzköperartig verteilt, wodurch die gleiche Wirkung erzielt wird. Hierbei ist die Anzahl der 1:1- gebundenen Querfäden größer als die der 1:3-gebundenen Querfäden.In FIG. 6, the transverse cranks 8 extending over three longitudinal threads are distributed in a cross-body manner, as a result of which the same effect is achieved. The number of 1: 1-bound cross threads is larger than that of 1: 3-bound cross threads.

In Fig. 7 ist ein vollständiges Verbundsieb der erfindungsgemäßen Art dargestellt, bestehend aus einem feinen, einfachen Obergewebe 9 und einem groben Untergewebe 10 der in Fig. 4 gezeigten Art. Zur Verdeutlichung des Aufbaus ist jedoch das Obergewebe nur zum Teil eingezeichnet.FIG. 7 shows a complete composite screen of the type according to the invention, consisting of a fine, simple top fabric 9 and a coarse bottom fabric 10 of the type shown in FIG. 4. However, to illustrate the structure, the top fabric is only shown in part.

Die Verbindung zwischen Obergewebe und Untergewebe wird mit Bindeschußfäden 11 hergestellt. Diese Bindungstechnik ist an sich bekannt.The connection between the upper fabric and the lower fabric is made with weft threads 11. This binding technique is known per se.

Die Laufseite des erfindungsgemäßen Verbundgewebes ist in den Fig. 8 und 9 dargestellt, wobei insbesondere Fig. 9 den überstand a der Verschleißfäden über die Längsfäden zeigt. Aus dieser Darstellung geht hervor, daß die Verschleißkröpfungen völlig verschleißen können, ohne das die Längsfäden angegriffen werden können, wodurch die angestrebten hohen Laufzeiten des Papiermaschinensiebes erreicht werden.The running side of the composite fabric according to the invention is shown in FIGS. 8 and 9, with FIG. 9 in particular showing the protrusion a of the wear threads over the longitudinal threads. It can be seen from this illustration that the wear cranks can wear out completely without the longitudinal threads being attacked, as a result of which the desired long running times of the paper machine screen are achieved.

Fig. 10 zeigt eine Möglichkeit, die durch die Verschleißkröpfungen gebildete Diagonale dadurch zu brechen, daß der Bindungspatrone A mit einer S-Diagonalen eine Bindungspatrone B mit einer Z-Diagnonalen angehängt wird.FIG. 10 shows a possibility of breaking the diagonal formed by the wear offsets by attaching a binding cartridge B with a Z-diagnosis to the binding cartridge A with an S-diagonal.

Claims (6)

1. Verbundgewebe als Papiermaschinensieb, bestehend aus einem feinen Obergewebe in einfacher Bindung und einem gröberen Untergewebe, dadurch gekennzeich- net, daß das Untergewebe (10) zwei Gruppen von Querfäden enthält, deren erste in 1:1-Bindung und deren zweite in 1:n-Bindung mit den Kettfäden des Untergewebes verwoben sind, daß sich aufeinanderfolgende Querfäden unterschiedlichster Bindungsart, die auf der Innenseite des Untergewebes Doppelkröpfungen (5) bilden, berühren, und daß die langen n-Kröpfungen (7) auf der Außenseite eine Verschleißebene bilden, wobei n ungerade Zahlen größer als 1 bedeutet.1. Composite fabric as a paper machine screen, consisting of a fine upper fabric in a single weave and a coarser lower fabric, characterized in that the lower fabric (10) contains two groups of transverse threads, the first in 1: 1 weave and the second in 1: n-weave are interwoven with the warp threads of the lower fabric, that successive transverse threads of different types of weave, which form double offsets (5) on the inside of the lower fabric, touch, and that the long n-offsets (7) form a wear plane on the outside, whereby n means odd numbers greater than 1. 2. Verbundgewebe nach Anspruch 1, dadurch ge- kennzeichnet, daß die Anzahl der Querfäden der beiden Gruppen von Querfäden des Untergewebes (10) gleich ist.2. Composite fabric according to claim 1, characterized in that the number of transverse threads of the two groups of transverse threads of the lower fabric (10) is the same. 3. Verbundgewebe nach Anspruch 1, dadurch gekennzeichnet , daß die Anzahl der 1:1- gebundenen Querfäden des Untergewebes größer ist als die Anzahl der 1:n-gebundenen Querfäden.3. Composite fabric according to claim 1, characterized in that the number of 1: 1-bound cross threads of the lower fabric is greater than the number of 1: n-bound cross threads. 4. Verbundgewebe nach Anspruch 1, dadurch gekennzeichnet , daß die 1:n-gebundenen Querfäden des Untergewebes (10) aus einem hochverschleißfesten Material bestehen.4. Composite fabric according to claim 1, characterized in that the 1: n-bound cross threads of the lower fabric (10) consist of a highly wear-resistant material. 5. Verbundgewebe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Obergewebe (9) mit dem Untergewebe (10) durch quergerichtete Bindefäden (11) zusammengewoben ist.5. Composite fabric according to one of claims 1 to 4, characterized in that the upper fabric (9) with the lower fabric (10) is woven together by transverse binding threads (11). 6. Verbundgewebe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Obergewebe (9) mit dem Untergewebe (10) durch ein Bindefadensystem aus längs- und quergerichteten Fäden zusammengewoben ist.6. Composite fabric according to one of claims 1 to 4, characterized in that the upper fabric (9) with the lower fabric (10) is woven together by a binding thread system of longitudinal and transverse threads.
EP85113822A 1984-12-12 1985-10-30 Composite web for a paper-making machine sieve Expired EP0185177B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85113822T ATE42120T1 (en) 1984-12-12 1985-10-30 COMPOSITE FABRIC AS A PAPER MACHINE SCREEN.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3445367A DE3445367C1 (en) 1984-12-12 1984-12-12 Composite fabric as a paper machine screen
DE3445367 1984-12-12

Publications (2)

Publication Number Publication Date
EP0185177A1 true EP0185177A1 (en) 1986-06-25
EP0185177B1 EP0185177B1 (en) 1989-04-12

Family

ID=6252611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113822A Expired EP0185177B1 (en) 1984-12-12 1985-10-30 Composite web for a paper-making machine sieve

Country Status (3)

Country Link
EP (1) EP0185177B1 (en)
AT (1) ATE42120T1 (en)
DE (2) DE3445367C1 (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264001A1 (en) * 1986-10-14 1988-04-20 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Double layer fabric for a paper making machine having a coarse wear side structure and a fine sheet surface structure
EP0293989A1 (en) * 1987-06-04 1988-12-07 Akzo N.V. Filtertestproof conveyor belt comprising aramid
EP0350673A2 (en) * 1988-06-27 1990-01-17 Nippon Filcon Co., Ltd. Papermakers double layer type fabrics
EP0408849A2 (en) * 1989-07-19 1991-01-23 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Forming fabric for the wet end of a paper machine
DE4019601A1 (en) * 1990-06-20 1992-01-09 Siebtuchfabrik Ag Paper-making woven blanket - has third weft system at the machine side, to increase wear resistance
US5894867A (en) * 1994-09-16 1999-04-20 Weavexx Corporation Process for producing paper using papermakers forming fabric
US5899240A (en) * 1994-09-16 1999-05-04 Weavexx Corporation Papermaker's fabric with additional first and second locator and fiber supporting yarns
US5937914A (en) * 1997-02-20 1999-08-17 Weavexx Corporation Papermaker's fabric with auxiliary yarns
US5983953A (en) * 1994-09-16 1999-11-16 Weavexx Corporation Paper forming progess
US6112774A (en) * 1998-06-02 2000-09-05 Weavexx Corporation Double layer papermaker's forming fabric with reduced twinning.
US6123116A (en) * 1999-10-21 2000-09-26 Weavexx Corporation Low caliper mechanically stable multi-layer papermaker's fabrics with paired machine side cross machine direction yarns
US6145550A (en) * 1997-08-01 2000-11-14 Weavexx Corporation Multilayer forming fabric with stitching yarn pairs integrated into papermaking surface
US6179013B1 (en) 1999-10-21 2001-01-30 Weavexx Corporation Low caliper multi-layer forming fabrics with machine side cross machine direction yarns having a flattened cross section
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
US6585006B1 (en) 2000-02-10 2003-07-01 Weavexx Corporation Papermaker's forming fabric with companion yarns
US6745797B2 (en) 2001-06-21 2004-06-08 Weavexx Corporation Papermaker's forming fabric
US6837277B2 (en) 2003-01-30 2005-01-04 Weavexx Corporation Papermaker's forming fabric
CN107164990A (en) * 2017-06-19 2017-09-15 太仓市宇航造纸机械厂 A kind of paper machine lining cloth

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3801051A1 (en) * 1988-01-15 1989-07-27 Wangner Gmbh Co Kg Hermann DOUBLE-DAY LOADING FOR THE SHEETING AREA OF A PAPER MACHINE
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009141A1 (en) * 1978-08-30 1980-04-02 Walter Krause Baglike filter element made from a porous textile web
EP0079431A1 (en) * 1981-11-15 1983-05-25 Siebtuchfabrik AG Single-layer paper-making fabric
DE3318990A1 (en) * 1983-05-25 1984-11-29 Fa. F. Oberdorfer, 7920 Heidenheim Multi-ply paper machine wire
DE3318985A1 (en) * 1983-05-25 1984-11-29 Fa. F. Oberdorfer, 7920 Heidenheim Paper machine wire with two superposed fabric plies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3224236A1 (en) * 1982-06-29 1984-03-08 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Composite fabric as a covering for the sheet-forming region of a paper machine
DE3305713C1 (en) * 1983-02-18 1984-04-19 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Composite fabric as covering for the sheet forming part of a paper machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009141A1 (en) * 1978-08-30 1980-04-02 Walter Krause Baglike filter element made from a porous textile web
EP0079431A1 (en) * 1981-11-15 1983-05-25 Siebtuchfabrik AG Single-layer paper-making fabric
DE3318990A1 (en) * 1983-05-25 1984-11-29 Fa. F. Oberdorfer, 7920 Heidenheim Multi-ply paper machine wire
DE3318985A1 (en) * 1983-05-25 1984-11-29 Fa. F. Oberdorfer, 7920 Heidenheim Paper machine wire with two superposed fabric plies

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264001A1 (en) * 1986-10-14 1988-04-20 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Double layer fabric for a paper making machine having a coarse wear side structure and a fine sheet surface structure
WO1988002797A1 (en) * 1986-10-14 1988-04-21 F. Oberdorfer Gmbh & Co. Kg Industriegewebe-Techni Double layer paper-making cloth with coarse backing and fine paper side
US5074339A (en) * 1986-10-14 1991-12-24 Oberdorfer Gmbh & Co. Kg Industriegewebe-Technik Double layered paper making forming fabric with a coarse structured running side and a fine structured paper side
EP0293989A1 (en) * 1987-06-04 1988-12-07 Akzo N.V. Filtertestproof conveyor belt comprising aramid
EP0350673A2 (en) * 1988-06-27 1990-01-17 Nippon Filcon Co., Ltd. Papermakers double layer type fabrics
EP0350673A3 (en) * 1988-06-27 1991-12-04 Nippon Filcon Co., Ltd. Papermakers double layer type fabrics
EP0408849A2 (en) * 1989-07-19 1991-01-23 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Forming fabric for the wet end of a paper machine
EP0408849A3 (en) * 1989-07-19 1991-04-24 F. Oberdorfer Gmbh & Co. Kg Industriegewebe-Technik Forming fabric for the wet end of a paper machine
DE4019601A1 (en) * 1990-06-20 1992-01-09 Siebtuchfabrik Ag Paper-making woven blanket - has third weft system at the machine side, to increase wear resistance
US5983953A (en) * 1994-09-16 1999-11-16 Weavexx Corporation Paper forming progess
US5899240A (en) * 1994-09-16 1999-05-04 Weavexx Corporation Papermaker's fabric with additional first and second locator and fiber supporting yarns
US5894867A (en) * 1994-09-16 1999-04-20 Weavexx Corporation Process for producing paper using papermakers forming fabric
US6073661A (en) * 1994-09-16 2000-06-13 Weavexx Corporation Process for forming paper using a papermaker's forming fabric
US5937914A (en) * 1997-02-20 1999-08-17 Weavexx Corporation Papermaker's fabric with auxiliary yarns
US6145550A (en) * 1997-08-01 2000-11-14 Weavexx Corporation Multilayer forming fabric with stitching yarn pairs integrated into papermaking surface
US6112774A (en) * 1998-06-02 2000-09-05 Weavexx Corporation Double layer papermaker's forming fabric with reduced twinning.
US6123116A (en) * 1999-10-21 2000-09-26 Weavexx Corporation Low caliper mechanically stable multi-layer papermaker's fabrics with paired machine side cross machine direction yarns
US6179013B1 (en) 1999-10-21 2001-01-30 Weavexx Corporation Low caliper multi-layer forming fabrics with machine side cross machine direction yarns having a flattened cross section
US6585006B1 (en) 2000-02-10 2003-07-01 Weavexx Corporation Papermaker's forming fabric with companion yarns
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
US6837277B2 (en) 2003-01-30 2005-01-04 Weavexx Corporation Papermaker's forming fabric
CN107164990A (en) * 2017-06-19 2017-09-15 太仓市宇航造纸机械厂 A kind of paper machine lining cloth

Also Published As

Publication number Publication date
ATE42120T1 (en) 1989-04-15
DE3445367C1 (en) 1986-08-14
EP0185177B1 (en) 1989-04-12
DE3569397D1 (en) 1989-05-18

Similar Documents

Publication Publication Date Title
EP0185177B1 (en) Composite web for a paper-making machine sieve
EP0432413B1 (en) Compound tissue for paper-making machine fabrics
EP0164434B1 (en) Papermachine cloth
EP0144529B1 (en) Multilayer cloth for a paper-making machine
EP0114656B1 (en) Compound fabric as a machine clothing for the sheet forming part of a paper machine
EP0264001B1 (en) Double layer fabric for a paper making machine having a coarse wear side structure and a fine sheet surface structure
EP0144530B2 (en) Screen-cloth for a paper-making machine
EP0120337B1 (en) Paper machine fabric in a texture weave which does not show a longitudinal symmetric axis
DE3305713C1 (en) Composite fabric as covering for the sheet forming part of a paper machine
EP1294981B1 (en) Paper making wire cloth
EP0097966B1 (en) Compound tissue for paper machines
CH640284A5 (en) MOLDING SCREEN FOR PAPER AND PULP MACHINES.
DE3634649A1 (en) COVERING FOR THE SHEET FORMING PART OF A PAPER MACHINE WITH ADDITIONAL, FLOATING CROSSFEDS LARGER RAPPORT LENGTH
EP0325167A1 (en) Double-layer screen for the forming section of a paper machine
EP0264881A1 (en) Fabric for the wet end of a paper-making machine
DE102013108399B3 (en) PAPER MACHINERY, WHICH HAS TREAD PANELS WITH DIFFERENT FLOATING LENGTH
DE3928484A1 (en) PAPER MACHINE TOWEL
DE20122178U1 (en) Compound woven material, for the fourdrinier of a papermaking machine, has upper and lower warp layers with a structured weaving pattern with paired wefts at the upper side forming intermediate filament bridges with the lower layer
DE2747160A1 (en) PAPER MACHINE TOWEL
EP1013821B1 (en) Multilayer papermaking fabric, for dewatering and sheetbuilding
EP1991735A1 (en) Fabric belt for machine for producing web material, especially paper or card
DE2263476A1 (en) MOLDED FABRICS AND METHOD FOR MANUFACTURING THEREOF
DE4229828C2 (en) Paper machine screen in the form of a composite fabric
EP1565613B1 (en) Papermaking screen
EP0136284B1 (en) Dewatering sieve

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: F. OBERDORFER GMBH & CO. KG INDUSTRIEGEWEBE-TECHNI

17P Request for examination filed

Effective date: 19860721

17Q First examination report despatched

Effective date: 19880204

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 42120

Country of ref document: AT

Date of ref document: 19890415

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3569397

Country of ref document: DE

Date of ref document: 19890518

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900831

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19901024

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19901031

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19911008

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19911009

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19911011

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19911015

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19911030

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19911031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19911223

Year of fee payment: 7

BERE Be: lapsed

Owner name: F. OBERDORFER G.M.B.H. & CO. K.G. INDUSTRIEGEWEBE

Effective date: 19911031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19921030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19921031

Ref country code: LI

Effective date: 19921031

Ref country code: CH

Effective date: 19921031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 85113822.2

Effective date: 19930510