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EP0185108A1 - Coated press belts for use in an extended nip press - Google Patents

Coated press belts for use in an extended nip press Download PDF

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Publication number
EP0185108A1
EP0185108A1 EP19840115692 EP84115692A EP0185108A1 EP 0185108 A1 EP0185108 A1 EP 0185108A1 EP 19840115692 EP19840115692 EP 19840115692 EP 84115692 A EP84115692 A EP 84115692A EP 0185108 A1 EP0185108 A1 EP 0185108A1
Authority
EP
European Patent Office
Prior art keywords
threads
longitudinal
fabric according
press
carrier
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
EP19840115692
Other languages
German (de)
French (fr)
Other versions
EP0185108B1 (en
Inventor
Fritz Vöhringer
Bernhard Dr. Krenkel
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 EP84115692A priority Critical patent/EP0185108B1/en
Priority to DE8484115692T priority patent/DE3473778D1/en
Priority to AT84115692T priority patent/ATE36877T1/en
Publication of EP0185108A1 publication Critical patent/EP0185108A1/en
Application granted granted Critical
Publication of EP0185108B1 publication Critical patent/EP0185108B1/en
Expired legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00Press section of machines for making continuous webs of paper
    • D21F3/02Wet presses
    • D21F3/0209Wet presses with extended press nip
    • D21F3/0218Shoe presses
    • D21F3/0227Belts or sleeves therefor
    • 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

Definitions

  • the invention relates to carrier fabrics for the production of coated, in particular PUR (polyurethane) coated, press belts, consisting of a set of longitudinal threads and at least one set of transverse threads, for use in wide-nip presses.
  • PUR polyurethane
  • Endless, preferably PUR-coated fabric tapes are used in wide-nip presses in the press section of modern paper machines.
  • the press nip is formed by a concave press shoe and a counter roll, the coated side of the fabric belt sliding on a lubricating film over the press shoe and the fabric side resting on a felt.
  • This arrangement of press shoe, fabric tape, felt and roller creates an extended press zone through which the dry content of the paper web is increased considerably. This creates an ent speaking increases the production speed of the paper machine.
  • the object of the invention is therefore to provide a carrier fabric of the type mentioned, which meets the requirements with regard to wear resistance, pressure distribution, longitudinal stability and resistance to flexing to a greater extent than the known carrier fabrics of the type mentioned (DE-OS 32 31 039 , DE-OS 32 35 468, DE-OS 32 24 760, DE-GM 83 19 684).
  • this object is achieved in that successive longitudinal threads form, at least on one side of the fabric, side-by-side offsets, so-called double offsets, which are guided over the same transverse threads.
  • This structure of the carrier fabric ensures that the inward pressure of the double cranks is so great that, even when using very thick transverse or weft threads, the longitudinal cranks are at least lower on one side of the fabric than the transverse cranks, thereby removing wear are.
  • This effect is also achieved with very thin longitudinal threads with a high weave density. This gives the carrier tape a pronounced flexibility in the direction of travel with good longitudinal stability given.
  • high weft thread densities and thus a high number of supporting points or number of weft cranks per unit area are achieved, which lead to a uniform pressure distribution on the carrier fabric.
  • part of the longitudinal threads can be made of very longitudinally stable material, the other part of highly wear-resistant material.
  • the diameter of at least some of the transverse threads being expediently chosen to be at least 25% larger than the diameter of the longitudinal threads, and the diameter of at least some of the longitudinal threads again by at least Can be 25% larger than the diameter of the other longitudinal threads.
  • a value of at least 40 / cm 2 has proven to be suitable for the number of wearable crankings on the fabric side facing the felt, but much higher values of up to about 160 / cm 2 have proven particularly useful.
  • 1 to 3 of the carrier fabric for the production of PUR-coated press belts have successive longitudinal or warp threads 11, 12, 13, which lie side by side on one side of the fabric and have the same cross or weft threads 18, 19, 20 guided cranks, so-called double cranks, form.
  • these offsets are arranged irregularly in order to avoid the formation of diagonals, which, in interaction with diagonals of the felt, which slides together with the carrier fabric over the press shoe of a wide-nip press, cause a strong lateral run of the Can cause PUR-coated tape.
  • the inward pressure caused by the press shoe of the double cranks shown is so great that, even when using very thick transverse threads 18, 19, 20, the longitudinal cranks come to lie at least on one side of the fabric deeper than the cross cranks, so that they do not Wear are removed.
  • This effect is also with very thin longitudinal threads with high weave density achieved. This ensures a pronounced bending flexibility of the press belt in the running direction with good longitudinal stability.
  • FIG. 4A and 4B are the press felt (FIG. 4A) and the PUR-coated side facing the press shoe (FIG. 4B) of a press belt according to the invention, which has two layers of transverse threads 21, 22 contains that form opposite levels.
  • the double cranks 14 are a layer of very thick transverse threads which form an upstream wear plane facing the felt of the press. At least some of these cross threads are made of a highly wear-resistant material, for example a polyamide, while the other longitudinal and cross threads can be made of polyester.
  • the diameter of at least some of the longitudinal threads 14 can be at least 25% larger than that of the other longitudinal threads, while the number of wearable crankings on the backing fabric side facing the press can be up to over 160 / cm 2 , but at least 40 / cm 2 . In this way, the diameter and number / cm 2 of the longitudinal threads can be determined so that there is sufficient longitudinal stability.
  • the cross thread layer of the carrier fabric facing the press shoe and carrying the coating, together with the likewise thin longitudinal threads, forms a wide-meshed surface into which the coating material can easily penetrate, while the wear side facing the felt is very densely woven, so that the flow of the coating material during coating is stopped.
  • 5A and 5B show a particularly longitudinally stable and at the same time wear-resistant embodiment of the carrier fabric according to the invention.
  • every second has a relatively small diameter and is made of polyester or another extremely longitudinally stable and tear-resistant material, for example Kevlar or steel.
  • the other longitudinal threads 17 are made of highly wear-resistant material, for example polyamide, as are the transverse threads 23 facing the felt and have a diameter similar to this.
  • the longitudinal cranks made of tear-resistant material are pulled deep into the carrier fabric due to the low elongation of such materials and are therefore not exposed to wear. This ensures a longitudinal stability of the coated strip that is independent of wear.
  • the cross threads 24 on the coating side can be multifilaments in order to additionally improve the connection between the fabric and the coating. Furthermore, it has proven useful to choose at least six for the number of longitudinal threads in the repeat.
  • any other suitable coating made of polymer material or rubber can also be used to create a carrier fabric of the type according to the invention.

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  • Woven Fabrics (AREA)
  • Paper (AREA)
  • Belt Conveyors (AREA)

Abstract

1. Coated press belt, especially PUR (polyurethane)-coated press belt for use in an extended nip press, comprising a carrier fabric consisting of one set of longitudinal threads and at least one set of cross threads, characterized in that the longitudinal threads or warp threads (11, 12, 13, 14, 15, 16, 17) succeeding one another form at least on one side of the fabric knuckles positioned adjacent to one another and extending over the same cross threads or weft threads (18, 19, 20), so called double knuckles, and that part of the longitudinal threads consists of material the longitudinal stability of which corresponds to that one of Kevlar**(R) or steel, whereas the other part thereof consists of a material the wear resistence thereof is corresponding to that one of polyamide.

Description

Die Erfindung betrifft Trägergewebe zur Herstellung von beschichteten, insbesondere PUR (Polyurethan)-beschichteten, Pressbändern, bestehend aus einem Satz Längsfäden und mindestens einem Satz Querfäden, für den Einsatz in Breit-Nip-Pressen.The invention relates to carrier fabrics for the production of coated, in particular PUR (polyurethane) coated, press belts, consisting of a set of longitudinal threads and at least one set of transverse threads, for use in wide-nip presses.

Endlose, vorzugsweise PUR-beschichtete Gewebebänder werden in Breit-Nip-Pressen der Pressenpartie von modernen Papiermaschinen eingesetzt. Bei diesen Pressen wird der Preßspalt von einem konkaven Preßschuh und einer Gegenwalze gebildet, wobei die beschichtete Seite des Gewebebandes auf einem Schmierfilm über den Preßschuh gleitet und die Gewebeseite an einem Filz anliegt. Durch diese Anordnung von Preßschuh, Gewebeband, Filz und Walze entsteht eine verlängerte Preßzone, durch die der Trockengehalt der Papierbahn erheblich gesteigert wird. Dadurch wird eine entsprechende Erhöhung der Produktionsgeschwindigkeit der Papiermaschine ermöglicht.Endless, preferably PUR-coated fabric tapes are used in wide-nip presses in the press section of modern paper machines. In these presses, the press nip is formed by a concave press shoe and a counter roll, the coated side of the fabric belt sliding on a lubricating film over the press shoe and the fabric side resting on a felt. This arrangement of press shoe, fabric tape, felt and roller creates an extended press zone through which the dry content of the paper web is increased considerably. This creates an ent speaking increases the production speed of the paper machine.

Da die Preßbänder einer großen Walk-Beanspruchung und enormen Drücken ausgesetzt sind und zwischen Gewebeband und Filz Reibung auftritt, werden an das Trägergewebe besonders hohe Anforderungen gestellt. Neben großer Verschleißfestigkeit, Längsstabilität und gleichmässiger Druckverteilung ist eine optimale Widerstandsfähigkeit gegen Walken bei hohem Druck erforderlich. Außerdem muß eine möglichst gute formschlüssige Verbindung zwischen PUR-Beschichtung und Gewebe vorhanden sein.Since the press belts are subjected to high flexing stress and enormous pressures and there is friction between the fabric belt and the felt, particularly high demands are placed on the carrier fabric. In addition to great wear resistance, longitudinal stability and even pressure distribution, optimum resistance to flexing at high pressure is required. In addition, there must be the best possible positive connection between the PUR coating and the fabric.

Die Aufgabe der Erfindung besteht deshalb darin, ein Trägergewebe der genannten Art zu schaffen, das den gestellten Anforderungen hinsichtlich Verschleißfestigkeit, Druckverteilung, Längsstabilität und Widerstandsfähigkeit gegen Walken in einem höheren Maße gerecht wird als die bekannten Trägergewebe der genannten Art (DE-OS 32 31 039, DE-OS 32 35 468, DE-OS 32 24 760, DE-GM 83 19 684).The object of the invention is therefore to provide a carrier fabric of the type mentioned, which meets the requirements with regard to wear resistance, pressure distribution, longitudinal stability and resistance to flexing to a greater extent than the known carrier fabrics of the type mentioned (DE-OS 32 31 039 , DE-OS 32 35 468, DE-OS 32 24 760, DE-GM 83 19 684).

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß aufeinanderfolgende Längsfäden wenigstens auf einer Seite des Gewebes nebeneinanderliegende und über dieselben Querfäden geführte Kröpfungen, sogenannte Doppelkröpfungen, bilden. Durch diesen Aufbau des Trägergewebes wird erreicht, daß der nach innen gerichtete Druck der Doppelkröpfungen so groß ist, daß auch bei Verwendung von sehr dicken Quer-oder Schußfäden die Längskröpfungen wenigstens auf einer Seite des Gewebes tiefer liegen als die Querkröpfungen, wodurch sie dem Verschleiß entzogen sind. Diese Wirkung wird auch mit sehr dünnen Längsfäden bei hoher Webdichte erreicht. Damit ist eine ausgeprägte Biege-Flexibilität des Trägerbandes in Laufrichtung bei guter Längsstabilität gegeben. Außerdem werden bei dünner Kette hohe Schußfadendichten und damit eine hohe Tragpunktezahl bzw. Anzahl Schußkröpfungen pro Flächeneinheit erreicht, die zu einer gleichmässigen Druckverteilung auf dem Trägergewebe führen.According to the invention, this object is achieved in that successive longitudinal threads form, at least on one side of the fabric, side-by-side offsets, so-called double offsets, which are guided over the same transverse threads. This structure of the carrier fabric ensures that the inward pressure of the double cranks is so great that, even when using very thick transverse or weft threads, the longitudinal cranks are at least lower on one side of the fabric than the transverse cranks, thereby removing wear are. This effect is also achieved with very thin longitudinal threads with a high weave density. This gives the carrier tape a pronounced flexibility in the direction of travel with good longitudinal stability given. In addition, in the case of a thin chain, high weft thread densities and thus a high number of supporting points or number of weft cranks per unit area are achieved, which lead to a uniform pressure distribution on the carrier fabric.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung kann ein Teil der Längsfäden aus sehr längsstabilem Material, der andere Teil aus hochverschleißfestem Material bestehen.According to an advantageous embodiment of the invention, part of the longitudinal threads can be made of very longitudinally stable material, the other part of highly wear-resistant material.

Darüberhinaus hat es sich bewährt, wenigstens einen Teil der Querfäden aus hochverschleißfestem Material herzustellen, wobei der Durchmesser wiederum wenigstens eines Teils der Querfäden zweckmässigerweise um mindestens 25 % größer gewählt wird als der Durchmesser der Längsfäden, und der Durchmesser wenigstens eines Teils der Längsfäden wiederum um mindestens 25 % größer sein kann als der Durchmesser der übrigen Längsfäden.In addition, it has proven useful to produce at least some of the transverse threads from highly wear-resistant material, the diameter of at least some of the transverse threads being expediently chosen to be at least 25% larger than the diameter of the longitudinal threads, and the diameter of at least some of the longitudinal threads again by at least Can be 25% larger than the diameter of the other longitudinal threads.

Für die Anzahl der verschleißbaren Kröpfungen auf der dem Filz zugewandten Gewebeseite hat sich ein Wert von mindestens 40/cm2 als geeignet erwiesen, jedoch haben sich wesentlich höhere Werte bis etwa 160/cm2 besonders bewährt.A value of at least 40 / cm 2 has proven to be suitable for the number of wearable crankings on the fabric side facing the felt, but much higher values of up to about 160 / cm 2 have proven particularly useful.

Weitere vorteilhafte Ausgestaltungen sind den Unteransprüchen zu entnehmen.Further advantageous refinements can be found in the subclaims.

Die Erfindung wird im folgenden anhand von Ausführungsbeispielen näher erläutert. In der Zeichnung zeigen:

  • Figur 1 und 2 Draufsichten einlagiger erfindungsgemäßer Trägergewebe mit regelmäßig angeordneten Kröpfungen,
  • Figur 3 eine Draufsicht eines erfindungsgemäßen Trägerge- .webes mit unregelmäßig angeordenten Kröpfungen,
  • Figur 4A und 4B Draufsichten des erfindungsgemäßen Trägergewebes mit zwei Lagen entgegengesetzte Ebenen bildenden Querfäden,
  • Figur 5A und 58 Draufsichten des erfindungsgemäßen Trägergewebes mit Längsfäden unterschielichen Durchmessers.
The invention is explained in more detail below on the basis of exemplary embodiments. The drawing shows:
  • 1 and 2 top views of single-layer carrier fabric according to the invention with regularly arranged crankings,
  • FIG. 3 shows a top view of a carrier fabric according to the invention with irregularly arranged crankings,
  • 4A and 4B are top views of the carrier fabric according to the invention with transverse threads forming two layers of opposite planes,
  • 5A and 58 are top views of the carrier fabric according to the invention with longitudinal threads of different diameters.

Die in den Fig. 1 bis 3 gezeigten Ausführungen des Trägergewebes zur Herstellung von PUR-beschichteten Preßbändern weisen aufeinanderfolgende Längs- oder Kettfäden 11, 12, 13 auf, die auf einer Seite des Gewebes nebeneinanderliegende und über dieselben Quer- oder Schußfäden 18, 19, 20 geführte Kröpfungen, sogenannte Doppelkröpfungen, bilden. Bei der Ausführungsform nach Fig. 3 sind diese Kröpfungen unregelmässig angeordnet, um die Ausbildung von Diagonalen zu vermeiden, die im Zusammenspiel mit Diagonalen des Filzes, der zusammen mit dem Trägergewebe über den Preßschuh einer Breit-Nip-Presse gleitet, ein starkes seitliches Verlaufen des PUR-beschichteten Bandes verursachen können.1 to 3 of the carrier fabric for the production of PUR-coated press belts have successive longitudinal or warp threads 11, 12, 13, which lie side by side on one side of the fabric and have the same cross or weft threads 18, 19, 20 guided cranks, so-called double cranks, form. In the embodiment according to FIG. 3, these offsets are arranged irregularly in order to avoid the formation of diagonals, which, in interaction with diagonals of the felt, which slides together with the carrier fabric over the press shoe of a wide-nip press, cause a strong lateral run of the Can cause PUR-coated tape.

Der durch den Preßschuh bewirkte, nach innen gerichtete Druck der dargestellten Doppelkröpfungen ist so groß, daß auch bei Verwendung von sehr dicken Querfäden 18,19,20 die Längskröpfungen wenigstens auf einer Seite des Gewebes tiefer als die Querkröpfungen zu liegen kommen, so daß sie dem Verschleiß entzogen sind. Diese Wirkung wird auch mit sehr dünnen Längsfäden bei hoher Webdichte erreicht. Dadurch wird eine ausgeprägte Biege-Flexibilität des Preßbandes in Laufrichtung bei guter Längsstabilität sichergestellt.The inward pressure caused by the press shoe of the double cranks shown is so great that, even when using very thick transverse threads 18, 19, 20, the longitudinal cranks come to lie at least on one side of the fabric deeper than the cross cranks, so that they do not Wear are removed. This effect is also with very thin longitudinal threads with high weave density achieved. This ensures a pronounced bending flexibility of the press belt in the running direction with good longitudinal stability.

Bei den in den Fig. 4A und 4B gezeigten Draufsichten handelt es sich um die dem Preßfilz (Fig. 4A) und die PUR-beschichtete, dem Preßschuh zugewandte Seite (Fig. 4B) eines erfindungsgemäßen Preßbandes, das zwei Lagen von Querfäden 21, 22 enthält, die entgegengesetzte Ebenen bilden. Die Doppelkröpfungen 14 sind eine Lage von sehr dicken Querfäden, die eine vorgelagerte, dem Filz der Presse zugewandte Verschleißebene bilden. Wenigstens ein Teil dieser Querfäden besteht aus einem hochverschleißfesten Material, beispielsweise einem Polyamid, während die anderen Längs- und Querfäden aus Polyester bestehen können.4A and 4B are the press felt (FIG. 4A) and the PUR-coated side facing the press shoe (FIG. 4B) of a press belt according to the invention, which has two layers of transverse threads 21, 22 contains that form opposite levels. The double cranks 14 are a layer of very thick transverse threads which form an upstream wear plane facing the felt of the press. At least some of these cross threads are made of a highly wear-resistant material, for example a polyamide, while the other longitudinal and cross threads can be made of polyester.

Der Durchmesser wenigstens eines Teils der Längsfäden 14 kann mindestens 25 % größer sein als derjenige der übrigen Längsfäden, während die Anzahl der verschleißbaren Kröpfungen der dem Filz der Presse zugewandten Trägergewebeseite bis über 160/cm2, mindesten jedoch 40/cm2 betragen kann. Auf diese Weise lassen sich Durchmesser und Anzahl/cm2 der Längsfäden so bestimmen, daß eine ausreichende Längsstabilität gegeben ist. Die dem Preßschuh zugewandte und die Beschichtung tragende Querfadenlage des Trägergewebes bildet zusammen mit den ebenfalls dünnen Längsfäden eine weitmaschige Oberfläche, in die das Beschichtungsmaterial leicht eindringen kann, während die dem Filz zugewandte Verschleißseite sehr dicht gewebt ist, so daß der Fluß des Beschichtungsmaterials bei der Beschichtung aufgehalten wird.The diameter of at least some of the longitudinal threads 14 can be at least 25% larger than that of the other longitudinal threads, while the number of wearable crankings on the backing fabric side facing the press can be up to over 160 / cm 2 , but at least 40 / cm 2 . In this way, the diameter and number / cm 2 of the longitudinal threads can be determined so that there is sufficient longitudinal stability. The cross thread layer of the carrier fabric facing the press shoe and carrying the coating, together with the likewise thin longitudinal threads, forms a wide-meshed surface into which the coating material can easily penetrate, while the wear side facing the felt is very densely woven, so that the flow of the coating material during coating is stopped.

Da sich dadurch zwischen den beiden Querfaden-Lagen das Beschichtungsmaterial staut, kommt es zu einer außerordentlich guten formschlüssigen Verbindung von Trägergewebe und Beschichtung.Since this causes the coating material to jam between the two transverse thread layers, there is an extraordinarily good interlocking connection between the carrier fabric and the coating.

In den Fig. 5A und 5B ist eine besonders längsstabile und zugleich verschleißfeste Ausführungsform des erfindungsgemaßen Trägergewebes dargestellt. Von den in Schußrichtung aufeinanderfolgenden Längsfäden 17, 25 hat jeder zweite einen relativ geringen Durchmesser und besteht aus Polyester oder einem anderen extrem längsstabilen und reißfesten Material, beispielsweise Kevlar oder Stahl. Die anderen Längsfäden 17 bestehen aus hochverschleißfestem Material, beispielsweise Polyamid, wie auch die dem Filz zugewandten Querfäden 23 und haben einen ähnlichen Durchmesser wie diese.5A and 5B show a particularly longitudinally stable and at the same time wear-resistant embodiment of the carrier fabric according to the invention. Of the successive longitudinal threads 17, 25, every second has a relatively small diameter and is made of polyester or another extremely longitudinally stable and tear-resistant material, for example Kevlar or steel. The other longitudinal threads 17 are made of highly wear-resistant material, for example polyamide, as are the transverse threads 23 facing the felt and have a diameter similar to this.

Die Hälfte aller Längskröpfungen auf der Verschleißseite (Fig. 5A) stellt dadurch eine zusätzliche Verschleibebene dar.Half of all longitudinal cranks on the wear side (Fig. 5A) thus represents an additional wear plane.

Die aus reißfestem Material bestehenden Längskröpfungen werden infolge der geringen Dehnung solcher Materialien tief in das Trägergewebe hineingezogen und sind somit nicht dem Verschleiß ausgesetzt. Damit ist eine vom Verschleiß unabhängige Längsstabilität des beschichteten Bandes gewährleistet.The longitudinal cranks made of tear-resistant material are pulled deep into the carrier fabric due to the low elongation of such materials and are therefore not exposed to wear. This ensures a longitudinal stability of the coated strip that is independent of wear.

Die Querfäden 24 der Beschichtungsseite können Multifilamente sein, um die Verbindung zwischen Gewebe und beschichtung zusätzlich zu verbessern. Desweiteren hat sich bewahrt, für die Anzahl der Längsfäden im Rapport mindestens sechs zu wählen.The cross threads 24 on the coating side can be multifilaments in order to additionally improve the connection between the fabric and the coating. Furthermore, it has proven useful to choose at least six for the number of longitudinal threads in the repeat.

Anstelle der PUR-Beschichtung der Preßbänder, die im obigen beispielshalber erläutert worden ist, läßt sich auch jede andere geeignete Beschichtung aus Polymermaterial oder auch aus Gummi verwenden, um ein Trägergewebe der erfindungsgemäßen Art zu schaffen.Instead of the PUR coating of the press belts, which has been explained in the example above, any other suitable coating made of polymer material or rubber can also be used to create a carrier fabric of the type according to the invention.

Claims (10)

1. Trägergewebe zur Herstellung von beschichteten Preßbändern, insbesondere PUR (Polyurethan)-beschichteten Preßbändern, für den Einsatz in Breit-Nip-Pressen, bestehend aus einem Satz Längsfäden und mindestens einem Satz Querfäden, dadurch gekennzeichnet, daß aufeinanderfolgende Längs- oder Kettfäden (11,12,13,14,15,16,17) wenigstens auf einer Seite des Gewebes nebeneinanderliegende und über dieselben Quer-oder Schußfäden (18,19,20) geführte Kröpfungen, sogenannte Doppelkröpfungen, bilden.1. Backing fabric for the production of coated press belts, in particular PUR (polyurethane) coated press belts, for use in wide-nip presses, consisting of a set of longitudinal threads and at least one set of transverse threads, characterized in that successive longitudinal or warp threads (11 , 12, 13, 14, 15, 16, 17) at least on one side of the fabric form side-by-side offsets, so-called double offsets, which are guided over the same transverse or weft threads (18, 19, 20). 2. Trägergewebe nach Anspruch 1, dadurch gekennzeichnet, daß ein Teil der Längsfäden (11, 12, 13, 14, 15, 16, 17)aus hochlängsstabilem Material, der andere Teil aus hochverschleißfestem Material besteht.2. Carrier fabric according to claim 1, characterized in that part of the longitudinal threads (11, 12, 13, 14, 15, 16, 17) made of highly longitudinally stable material, the other part consists of highly wear-resistant material. 3. Trägergewebe nach Anspruch 1 oder 2, dadurch gekennzeichnet , daß wenigstens ein Teil der Querfäden (18, 19, 20) aus hochverschleißfestem Material besteht.3. Carrier fabric according to claim 1 or 2, characterized in that at least part of the transverse threads (18, 19, 20) consists of highly wear-resistant material. 4. Trägergewebe nach Anspruch 2 oder 3, dadurch gekennzeichnet , daß das hochverschleißfeste Material Polyamid ist und daß das hochlängsstabile Material Kevlar oder Stahl ist.4. carrier web according to claim 2 or 3, characterized ge k ennzeichnet that the highly wear-resistant material is polyamide and that the high longitudinally stable material Kevlar or steel. 5. Trägergewebe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Durchmesser wenigstens eines Teils der Querfäden mindestens 25 % großer ist als der Durchmesser der Längsfäden.5. Carrier fabric according to one of claims 1 to 4, characterized in that the diameter of at least part of the transverse threads is at least 25% larger than the diameter of the longitudinal threads. 6. Tragergewebe nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet , daß der Durchmesser wenigstens eines Teils der Längsfäden mindestens 25 % grober ist als der Durchmesser der übrigen Längsfaden.6. Carrier fabric according to one of claims 1 to 5, characterized in that the diameter of at least part of the longitudinal threads is at least 25% coarser than the diameter of the other longitudinal threads. 7. Tragergewebe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Anzahl der verschleißbaren Kröpfungen der dem über den Preßzylinder gefunrten Filz zugewandten Gewebeseite von mindestens 40/cm2 bis über 160/cm2 beträgt.7. Carrier fabric according to one of claims 1 to 6, characterized in that the number of wearable crankings of the fabric side facing the felted via the press cylinder is from at least 40 / cm 2 to over 160 / cm 2 . 8. Trägergewebe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Anzahl der Langsfaden im Rapport mindestens sechs beträgt.8. carrier fabric according to one of claims 1 to 6, characterized in that the number of longitudinal threads in the repeat is at least six. 9. Tragergewebe nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet , daß die Querfaden der Beschichtungsseite aus multifilem Material be-stehen.9. support fabric according to one of claims 1 to 8, characterized in that the transverse thread of the coating side made of multifilament material b e-stand. 10. Trägergewebe nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Beschichtung der Preßbänder aus Gummi besteht.10. carrier fabric according to one of claims 1 to 9, characterized in that the coating of the press belts consists of rubber.
EP84115692A 1984-12-18 1984-12-18 Coated press belts for use in an extended nip press Expired EP0185108B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP84115692A EP0185108B1 (en) 1984-12-18 1984-12-18 Coated press belts for use in an extended nip press
DE8484115692T DE3473778D1 (en) 1984-12-18 1984-12-18 Coated press belts for use in an extended nip press
AT84115692T ATE36877T1 (en) 1984-12-18 1984-12-18 COATED PRESS BELTS FOR USE IN WIDE NIP PRESSES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84115692A EP0185108B1 (en) 1984-12-18 1984-12-18 Coated press belts for use in an extended nip press

Publications (2)

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EP0185108A1 true EP0185108A1 (en) 1986-06-25
EP0185108B1 EP0185108B1 (en) 1988-08-31

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EP84115692A Expired EP0185108B1 (en) 1984-12-18 1984-12-18 Coated press belts for use in an extended nip press

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EP (1) EP0185108B1 (en)
AT (1) ATE36877T1 (en)
DE (1) DE3473778D1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914534C1 (en) * 1989-05-02 1990-10-18 Thomas Josef Heimbach Gmbh & Co, 5160 Dueren, De
DE3914533A1 (en) * 1989-05-02 1990-11-08 Heimbach Gmbh Thomas Josef TAPE FOR PAPER MACHINES
DE4020589A1 (en) * 1990-06-28 1992-01-09 Oberdorfer Fa F Coated press band for paper making machines - has core fabric with flattened warp and/or weft threads
EP1927695A1 (en) * 2005-09-22 2008-06-04 Ichikawa Co., Ltd. Belt for shoe press
US20120276166A1 (en) * 2009-12-18 2012-11-01 Mitsubishi Tanabe Pharma Corporation Elution-stabilized preparation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080686A1 (en) * 1981-11-23 1983-06-08 Hermann Wangner GmbH & Co. KG Double layer fabric as a Fourdrinier wire for paper machines
EP0085363A1 (en) * 1982-01-22 1983-08-10 Huyck Corporation A papermakers' fabric
EP0098502A2 (en) * 1982-07-02 1984-01-18 Thomas Josef Heimbach GmbH & Co. Belt for use in wet presses of paper machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080686A1 (en) * 1981-11-23 1983-06-08 Hermann Wangner GmbH & Co. KG Double layer fabric as a Fourdrinier wire for paper machines
EP0085363A1 (en) * 1982-01-22 1983-08-10 Huyck Corporation A papermakers' fabric
EP0098502A2 (en) * 1982-07-02 1984-01-18 Thomas Josef Heimbach GmbH & Co. Belt for use in wet presses of paper machines

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914534C1 (en) * 1989-05-02 1990-10-18 Thomas Josef Heimbach Gmbh & Co, 5160 Dueren, De
DE3914533A1 (en) * 1989-05-02 1990-11-08 Heimbach Gmbh Thomas Josef TAPE FOR PAPER MACHINES
US5175037A (en) * 1989-05-02 1992-12-29 Thomas Josef Heimbach Gmbh & Co. Belt for papermaking machines
US5178937A (en) * 1989-05-02 1993-01-12 Thomas Josef Heimbach Gmbh & Co. Belt for papermaking machines
DE4020589A1 (en) * 1990-06-28 1992-01-09 Oberdorfer Fa F Coated press band for paper making machines - has core fabric with flattened warp and/or weft threads
EP1927695A1 (en) * 2005-09-22 2008-06-04 Ichikawa Co., Ltd. Belt for shoe press
EP1927695A4 (en) * 2005-09-22 2008-10-08 Ichikawa Co Ltd Belt for shoe press
US20120276166A1 (en) * 2009-12-18 2012-11-01 Mitsubishi Tanabe Pharma Corporation Elution-stabilized preparation
US9572806B2 (en) * 2009-12-18 2017-02-21 Mitsubishi Tanabe Pharma Corporation Elution-stabilized preparation

Also Published As

Publication number Publication date
EP0185108B1 (en) 1988-08-31
ATE36877T1 (en) 1988-09-15
DE3473778D1 (en) 1988-10-06

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