EP1664410B1 - Woven belt for a corrugated paper board machine - Google Patents

Woven belt for a corrugated paper board machine Download PDF

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Publication number
EP1664410B1
EP1664410B1 EP20030748033 EP03748033A EP1664410B1 EP 1664410 B1 EP1664410 B1 EP 1664410B1 EP 20030748033 EP20030748033 EP 20030748033 EP 03748033 A EP03748033 A EP 03748033A EP 1664410 B1 EP1664410 B1 EP 1664410B1
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EP
European Patent Office
Prior art keywords
belt
fabric layer
threads
paper side
woven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20030748033
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German (de)
French (fr)
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EP1664410A1 (en
Inventor
Armin Birzele
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.)
Muehlen Sohn GmbH and Co
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Muehlen Sohn GmbH and Co
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Publication of EP1664410A1 publication Critical patent/EP1664410A1/en
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    • 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
    • D21F1/0045—Triple layer fabrics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2139—Coating or impregnation specified as porous or permeable to a specific substance [e.g., water vapor, air, etc.]

Definitions

  • the invention relates to a woven belt for a corrugated pasteboard machine according to the preamble of claim 1.
  • the invention has for its object to form a belt for a corrugated carding machine such that even over long periods of operation, a high coefficient of friction of the paper side is guaranteed and at the same time the vapor permeability of the belt is not affected, so that a rapid dehumidification of the resting corrugated board is given.
  • the coating strip of a friction-increasing material on the paper side ensures that the belt has a high coefficient of friction even under unfavorable operating conditions and also after a long period of operation, so that the overlying corrugated board is transported safely and non-slip and the situation does not change during the manufacturing process. Since the strip is made of a friction-increasing material narrower than the width of the belt, regardless of the selected coating material, the vapor permeability of the belt is maintained, so that a rapid dehumidification of the resting corrugated material is guaranteed. Although a plurality of strips are provided side by side to achieve good transport properties across the width of the belt, a good vapor permeability is given. Preferably, drainage channels are formed between adjacent strips in the belt to remove the moisture.
  • the strip is formed from a friction-increasing material as a coating strip.
  • the coating is advantageously made of silicone.
  • the thread material of the weft threads and / or the warp threads are admixed with electrically conductive metal fibers, so that an electrostatic charge is largely avoided.
  • the thread material with the admixed metal fibers can be provided both in the fabric layer forming the paper side, in the middle fabric layer and also in a possible further fabric layer.
  • Fig. 1 an embodiment of a belt 1 is shown.
  • the belt 1 preferably made of plastic threads, in particular monofilaments, consists of an upper fabric layer 10, a middle fabric layer 20 receiving the tensile forces and a lower fabric layer 30.
  • the side of the upper fabric layer 10 facing away from the middle fabric layer 20 forms the paper side 15 of the fabric belt 1.
  • the weft threads 4 extend transversely to the longitudinal direction 5 (FIG. Fig. 2 ) of the belt 1.
  • the tensile forces receiving fabric layer 20 has two mutually offset warp threads 21, 22, the advantageous z. B. extend over two weft threads 4.
  • a preferably additionally arranged lower fabric layer 30 consists of four each mutually offset warp threads 31, 32, 33, 34, the inward - to the middle fabric layer 20 - advantageously over only one weft thread 4 and outwardly over advantageously at least three weft threads 4 run. Other arrangements may be appropriate.
  • the three fabric layers 10, 20, 30 in the exemplary embodiment are connected to one another via binding threads 40, 41, 42, 43.
  • the binding threads 40, 41, 42, 43 are z. B. divided into two groups of threads, wherein the thread group forming binding threads 42, 43 run staggered and bind the upper fabric layer 10 to the middle fabric layer 20.
  • the binding threads 42 and 43 may advantageously be alternately guided over a weft thread 4 in the upper fabric layer 10 and a weft thread 4 in the middle fabric layer 20.
  • the thread group consisting of the binding threads 40 and 41 binds the lower fabric layer 30 to the middle fabric layer 20.
  • the paper side 15 forming the upper fabric layer 10 of the belt 1 is applied with a plurality of strips 25 from a friction-enhancing coating extending in the longitudinal direction 5 of the belt 1, spaced apart and increase the coefficient of friction between the overlying corrugated cardboard and the belt.
  • the corrugated board is largely slip-free and is securely held during transport on the belt 1 and fixed in position. Since the coating strip 25 narrower than the width of the belt, the vapor permeability is maintained despite the coating.
  • the warp threads 13 ' are provided with a friction-increasing coating 25', which then form the friction-increasing coating strip due to their position in the paper side 15.
  • individual warp threads 13 ' can be woven with a friction-increasing coating in the longitudinal direction of the belt or else all the warp threads (11', 12 ', 13', 14 ') and / or the weft threads 4' of the paper side 15 can be coated with a friction-increasing coating be.
  • the warp threads of the paper side lie side by side, but form due to the executed weave structure and / or z.
  • the upper fabric layer 10 of the belt 1 at least one extending in the longitudinal direction 5 of the belt 1 warp thread 14 '' to be arranged, which consists of a cavity-forming thread material, ie from a different thread material than other warps forming the remaining region of the belt 11, 12th , 13 and 14 of the upper fabric layer 10 (FIG. Fig. 2 ).
  • the individual warp threads 14 '' of the paper-forming fabric layer 10 consist of cavity-forming thread material which is in communication with drainage channels 50.
  • Each drainage channel 50 is preferably provided as a mechanically woven tissue cavity extending from the paper side extends toward the underside of the belt, thus quickly and effectively dewatering the non-coating area of the belt.
  • the cavity 50 opens on the underside of the belt facing away from the paper side and is designed, in particular, as a cavity projecting through the belt.
  • Fig. 4 shows - the cavities 50 configured in the manner of an outflow, through which steam is discharged from the paper side of the upper fabric layer 10 through the belt 1 therethrough.
  • the weft threads 4 'or the warp threads 11', 12 ', 13' and 14 '' advantageously intersect mechanically drained drainage channels 50.
  • the drainage channels 50 are arranged at the intersection points between weft threads and warp threads.
  • a cavity-forming thread material z. B a thread material with a high starch content applicable;
  • the thread material is made entirely of starch. This has the consequence that in the dry state, the void-forming threads of starch or with a high proportion of starch can be processed as normal threads.
  • the tissue structure they form placeholders, which dissolve on contact with liquid, especially water.
  • the resulting after dissolution and washing out of the starch from the tissue defects form drainage channels, drainage or the like., Which each open into the mechanically woven drainage channel 50.
  • a kind of drainage grid is placed in the region between the drainage channels 50, which feeds the resulting liquid directly to the mechanically drained drainage channel 50 and thus ensures rapid drainage of the material resting on the fabric strap.
  • the warp threads form from the cavity-forming thread material after a certain period of operation longitudinally extending longitudinal channels and weft threads 4 'of such a cavity-forming thread material cross channels. Since the longitudinal channels and the transverse channels intersect on account of the fabric structure (warp threads / weft threads), the transverse channels and the longitudinal channels are connected to one another in a flow-conducting manner. A rapid removal of the liquid is given.
  • Cavity fibers can also be used as cavity-forming thread material. Over a longer period of operation open due to the wear occurring the cavity fibers, so that their inner cavities form even drainage channels extending in the longitudinal direction of the warp or weft threads.
  • warp or weft threads of the further fabric layers 20 and 30 may also be provided from cavity-forming thread material.
  • individual binding threads can be provided from cavity-forming thread material, whereby in the tissue structure from the one fabric layer 10 to the other fabric layer 20 extending drainage channels can be created.
  • the void-forming thread material as a threading to a warp thread, weft thread or binding thread to avoid disturbing the weave structure.
  • the warp threads, weft threads and binding threads determining the fabric structure remain unchanged in their number;
  • Fig. 5 shows a schematic representation of another woven belt 2 in longitudinal section.
  • the belt 2 consists of an upper fabric layer 50 and a lower fabric layer 60.
  • the upper fabric layer 50 which forms the paper side
  • the four mutually offset warp threads 51, 52, 53 and 54 and in the lower fabric layer 60 the four offset from each other arranged warp threads 61, 62, 63, 64.
  • the weft threads 6 extend transversely to the longitudinal direction 7, wherein the warp threads extend over two weft threads 6.
  • the upper fabric layer 50 and the lower fabric layer 60 are woven together by binding threads 44, 45, wherein the binding threads offset from each other via a respective weft thread 6 extend.
  • Fig. 6 shows a schematic representation of the top view of the upper fabric layer
  • Fig. 7 a schematic representation of the top view of the lower fabric layer of the same belt section as in Fig. 6 shown.
  • the four warp threads 51, 52, 53 and 54 are arranged side by side, then the two binding threads 44 and 45 are arranged thereafter.
  • the threads of the lower fabric layer 60 are as in FIG Fig. 7 shown, correspondingly interwoven.
  • the warp 52 of the upper fabric layer 50 and the warp yarns 62 and 64 of the lower fabric layer 60 have a larger diameter than the remaining warp threads.
  • drainage channels are formed, wherein the upper fabric layer 50 has more drainage channels than the lower fabric layer 60.
  • the drainage channels can also be formed by the thread structure of the warp threads 51 to 54 and 61 to 64.
  • the threads may have grooves in their longitudinal direction.
  • a belt 3 is shown having an upper fabric layer 70 and a lower fabric layer 80.
  • the warp threads 71 to 74 of the upper fabric layer 70 and the warp threads 81 to 84 of the lower fabric layer 80 extend corresponding to the warp threads 51 to 54 and 61 to 64 in FIG Fig. 5 .
  • the upper fabric layer 70 and the lower fabric layer 80 are interwoven with each other via binding threads 46 and 47, wherein the binding threads 46, 47 extend over in each case a weft thread 8 of the fabric layers 70 and 80.
  • Fig. 9 shows the schematic plan view of the belt 3.
  • the warp yarns 71 to 74 are woven next to each other, then follow the binding threads 46 and 47.
  • the drainage channels are formed by omitting every other Kettfadenate the fabric layer 70 so that binding threads 46 and 47 again binding threads 46 and 47 follow and followed by another series of warp threads 71 to 74 followed.
  • lower fabric layer 80 extends according to the in Fig. 7 shown lower fabric layer 60 of the belt 2, wherein the warp threads 81 to 84 of the lower fabric layer 80 may all have the same diameter.
  • a belt 1, 2, 3 can be woven in the edge region of the belt in the belt longitudinal direction 5, 7 thread material with a high temperature resistance, in particular para-aramid or Kevlar.
  • the temperature-resistant thread material can also be over the entire width of an upper fabric layer 10, 50, 70 or a lower fabric layer 30, 60, 80 or both a lower and an upper fabric layer.
  • the drainage channels 50 may also be formed as openings in the weave structure. For this purpose, for example, adjacent warp threads of a fabric layer can be crossed.
  • the thread material can consist of 65% polyester and 35% viscose. However, another composition may be advantageous. Preferably, a monofilament is used as the thread material.
  • Silicone is preferably used as the material for the friction-increasing strips. Also polyurethane can be advantageous.
  • weft or warp threads of a material with admixed electrically conductive metal fibers may be provided both in the upper fabric layer in which the tensile forces receiving fabric layer or in a further fabric layer, the threads are preferably provided on the paper side. It may be sufficient to form only single weft and / or warp threads in the paper top from material containing metal fibers to obtain a significant improvement in the antistatic properties of the belt.
  • the material properties of the monofilaments can be used to advantage for the formation of drainage channels.
  • Monofilaments have a substantially pressure-stable cross-sectional shape, so that - even with dense, solid weave - the cross-sectional shape hardly undergoes changes. As a result, gaps, cavities and the like remain in the weave structure. As monofilaments with circular, elliptical or similar cross-sectional shape can be used. These voids and gaps, which are also present in tight packing, are embedded in the weave structure in such a way that moisture-removing channels are formed on the paper side.

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  • Woven Fabrics (AREA)
  • Paper (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Inorganic Insulating Materials (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Waveguide Connection Structure (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Belt Conveyors (AREA)

Abstract

A woven belt for a corrugated board machine has a first woven layer made of first warp threads and first weft threads and adapted to take up tensile forces acting on the woven belt. A second woven layer made of second warp threads and second weft threads forms a woven top layer covering the first woven layer. The woven top layer forms a paper side of the woven belt on which paper side corrugated board is supported. The woven top layer is vapor permeable to allow removal of moisture from the paper side. The woven top layer has at least one strip of a friction-increasing material, wherein the at least one strip is narrower in a direction perpendicular to a longitudinal direction of the woven belt than a width of the woven belt.

Description

Die Erfindung betrifft einen gewebten Gurt für eine Wellpappenbeklebemaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a woven belt for a corrugated pasteboard machine according to the preamble of claim 1.

Aus der WO 96/07788 ist ein gewebter Gurt für eine Wellpappenbeklebemaschine bekannt, der über eine lange Betriebsdauer bei hohem Qualitätsstandard eine gute Entwässerung des aufgelegten Gutes gewährleistet. Aufgrund steigender Anforderungen ist sicherzustellen, daß der Gurt eine ausreichend hohe mechanische Festigkeit aufweist. Dies führt zu mehrlagigen Gewebestrukturen, welche die Durchlässigkeit des Gurtes nachteilig herabsetzen.From the WO 96/07788 is a woven belt for a corrugator known, which ensures good drainage of the laid good over a long service life with high quality standard. Due to increasing demands to ensure that the belt has a sufficiently high mechanical strength. This leads to multilayer fabric structures, which reduce the permeability of the belt adversely.

Auch wurde festgestellt, daß die Papierseite des Gewebegurtes unter ungünstigen Bedingungen oder auch nach längerer Einsatzzeit einen nur geringen Reibwert aufweist, wodurch die Transportfähigkeit des Gurtes beeinträchtigt ist und die aufliegende Wellpappe verrutschen kann. Dies führt zu Qualitätseinbußen und kann Störungen im Produktionsablauf verursachen. Auch bei einem Gurt wie er in DE 197 46848 A beschrieben ist, können nach längerer Einsatzzeit geringere Reibwerte erscheinen.It has also been found that the paper side of the fabric belt under unfavorable conditions or even after prolonged use has a low coefficient of friction, whereby the transportability of the belt is impaired and the resting corrugated cardboard can slip. This leads to quality losses and can cause disruptions in the production process. Even with a strap like him in DE 197 46848 A described, lower coefficients of friction may appear after prolonged use.

Der Erfindung liegt die Aufgabe zugrunde, einen Gurt für eine Wellpappenbeklebemaschine derart auszubilden, daß auch über lange Betriebszeiten ein hoher Reibwert der Papierseite gewährleistet ist und zugleich die Dampfdurchlässigkeit des Gurtes nicht beeinträchtigt ist, so daß eine rasche Entfeuchtung der aufliegenden Wellpappe gegeben ist.The invention has for its object to form a belt for a corrugated carding machine such that even over long periods of operation, a high coefficient of friction of the paper side is guaranteed and at the same time the vapor permeability of the belt is not affected, so that a rapid dehumidification of the resting corrugated board is given.

Die Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved with the features of claim 1.

Durch den Beschichtungsstreifen aus einem reibwerterhöhenden Material auf der Papierseite ist gewährleistet, daß der Gurt auch unter ungünstigen Betriebsbedingungen und auch nach langer Betriebszeit einen hohen Reibkoeffizienten hat, so daß die aufliegende Wellpappe sicher und rutschfrei transportiert wird und sich die Lage während dem Fertigungsprozess nicht ändert. Da die Streifen aus einem reibwerterhöhenden Material schmaler als die Breite des Gurtes ausgeführt ist, bleibt unabhängig von dem gewählten Beschichtungsmaterial die Dampfdurchlässigkeit des Gurtes erhalten, so daß eine rasche Entfeuchtung des aufliegenden Wellpappengutes gewährleistet ist. Auch wenn zur Erzielung guter Transporteigenschaften quer zur Breite des Gurtes mehrere Streifen nebeneinanderliegend vorgesehen sind, ist eine gute Dampfdurchlässigkeit gegeben. Bevorzugt werden zwischen benachbarten Streifen im Gurt Drainagekanäle zur Abfuhr der Feuchtigkeit ausgebildet.The coating strip of a friction-increasing material on the paper side ensures that the belt has a high coefficient of friction even under unfavorable operating conditions and also after a long period of operation, so that the overlying corrugated board is transported safely and non-slip and the situation does not change during the manufacturing process. Since the strip is made of a friction-increasing material narrower than the width of the belt, regardless of the selected coating material, the vapor permeability of the belt is maintained, so that a rapid dehumidification of the resting corrugated material is guaranteed. Although a plurality of strips are provided side by side to achieve good transport properties across the width of the belt, a good vapor permeability is given. Preferably, drainage channels are formed between adjacent strips in the belt to remove the moisture.

In besonderer Ausgestaltung der Erfindung ist der Streifen aus einem reibwerterhöhenden Material als Beschichtungsstreifen gebildet.In a particular embodiment of the invention, the strip is formed from a friction-increasing material as a coating strip.

Die Beschichtung besteht vorteilhaft aus Silikon.The coating is advantageously made of silicone.

In Weiterbildung der Erfindung werden dem Fadenmaterial der Schußfäden und/oder der Kettfäden elektrisch leitfähige Metallfasern beigemischt, so daß eine elektrostatische Aufladung weitgehend vermieden ist. Das Fadenmaterial mit den beigemischten Metallfasern kann sowohl in der die Papierseite bildenden Gewebelage, in der mittleren Gewebelage und auch in einer eventuellen weiteren Gewebelage vorgesehen sein.In a further development of the invention, the thread material of the weft threads and / or the warp threads are admixed with electrically conductive metal fibers, so that an electrostatic charge is largely avoided. The thread material with the admixed metal fibers can be provided both in the fabric layer forming the paper side, in the middle fabric layer and also in a possible further fabric layer.

Um auch bei hoher Gewebedichte die Dampfdurchlässigkeit des Gurtes zu gewährleisten, ist vorgesehen, die Kettfäden und/oder die Schußfäden aus einem Monofilament zu verwenden, wobei die Eigenschaften des Monofilamentes die Dampfdurchlässigkeit des Gurtes sicherstellen. Monofilamente von z. B. kreisförmigem, elliptischem oder ähnlichem Querschnitt ändern ihre Querschnittsform auch bei hohem Druck weitgehend nicht, so daß auch bei hoher Packungsdichte zwischen den aus einzelnen Monofilamenten bestehenden Schuß- und Kettfäden Hohlräume verbleiben. Abhängig von der Webstruktur werden diese Hohlräume genutzt, um die Dampfdurchlässigkeit des Gurtes allein aufgrund der Webstruktur zu gewährleisten.In order to ensure the vapor permeability of the belt even at high fabric density, it is intended to use the warp threads and / or the wefts of a monofilament, the properties of the monofilament ensuring the vapor permeability of the belt. Monofilaments of z. B. circular, elliptical or similar cross-section change their cross-sectional shape largely not at high pressure, so that even at high packing density between the individual monofilaments existing weft and warp threads cavities remain. Depending on the weave structure, these voids are used to ensure the vapor permeability of the belt solely due to the weave structure.

Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und der Zeichnung, in der ein nachfolgend im einzelnen beschriebenes Ausführungsbeispiel der Erfindung dargestellt ist.Further features of the invention will become apparent from the other claims, the description and the drawing, in which an embodiment of the invention described in detail below is shown.

Es zeigen:

Fig. 1
einen gewebten Gurt im Längsschnitt,
Fig. 2
eine Teildraufsicht auf die obere, die Papierseite bildende Gewebelage,
Fig. 3
eine Draufsicht auf die Außenseite der unteren Gewebelage des Gurtes,
Fig. 4
eine schematische Draufsicht auf die Papierseite eines Gurtes gemäß Fig. 1.
Fig. 5
eine schematische Darstellung eines weiteren gewebten Gurts im Längsschnitt,
Fig. 6
eine schematische Darstellung der Draufsicht auf die obere, die Papierseite bildende Gewebelage des Gurts aus Fig. 5,
Fig. 7
eine schematische Darstellung der Draufsicht auf die untere Gewebelage des Gurts aus Fig. 5,
Fig. 8
eine schematische Darstellung eines weiteren gewebten Gurts im Längsschnitt,
Fig. 9
eine schematische Darstellung der Draufsicht auf die obere, die Papierseite bildende Gewebelage des Gurts aus Fig. 8,
Fig. 10
eine schematische Darstellung der Draufsicht auf die untere Gewebelage des Gurts aus Fig. 8.
Show it:
Fig. 1
a woven belt in longitudinal section,
Fig. 2
a partial plan view of the upper, the paper side forming fabric layer,
Fig. 3
a plan view of the outside of the lower fabric layer of the belt,
Fig. 4
a schematic plan view of the paper side of a belt according to Fig. 1 ,
Fig. 5
a schematic representation of another woven belt in longitudinal section,
Fig. 6
a schematic representation of the top view of the upper, the paper side forming fabric layer of the belt Fig. 5 .
Fig. 7
a schematic representation of the top view of the lower fabric layer of the belt Fig. 5 .
Fig. 8
a schematic representation of another woven belt in longitudinal section,
Fig. 9
a schematic representation of the top view of the upper, the paper side forming fabric layer of the belt Fig. 8 .
Fig. 10
a schematic representation of the top view of the lower fabric layer of the belt Fig. 8 ,

In Fig. 1 ist ein Ausführungsbeispiel für einen Gurt 1 dargestellt. Der bevorzugt aus Kunststoffäden, insbesondere Monofilamenten hergestellte Gurt 1 besteht aus einer oberen Gewebelage 10, einer die Zugkräfte aufnehmenden mittleren Gewebelage 20 und einer unteren Gewebelage 30. Die der mittleren Gewebelage 20 abgewandte Seite der oberen Gewebelage 10 bildet die Papierseite 15 des Gewebegurtes 1.In Fig. 1 an embodiment of a belt 1 is shown. The belt 1 preferably made of plastic threads, in particular monofilaments, consists of an upper fabric layer 10, a middle fabric layer 20 receiving the tensile forces and a lower fabric layer 30. The side of the upper fabric layer 10 facing away from the middle fabric layer 20 forms the paper side 15 of the fabric belt 1.

In den Gewebelagen 10, 20, 30 verlaufen die Schußfäden 4 quer zur Längsrichtung 5 (Fig. 2) des Gurtes 1.In the fabric layers 10, 20, 30, the weft threads 4 extend transversely to the longitudinal direction 5 (FIG. Fig. 2 ) of the belt 1.

In der oberen Gewebelage 10 sind vier gegeneinander versetzt verlaufende Kettfäden 11, 12, 13 und 14 (Fig. 1, 2) vorgesehen, die sowohl nach innen zur mittleren Gewebelage 20 hin als auch nach außen zur Papierseite hin z. B. über vorteilhaft jeweils mindestens zwei Schußfäden 4 laufen.In the upper fabric layer 10 are four mutually offset warp threads 11, 12, 13 and 14 ( Fig. 1, 2 ) provided, both inwardly toward the middle fabric layer 20 and out to the paper side towards z. B. over advantageously at least two weft threads 4 run.

Die mittlere, die Zugkräfte aufnehmende Gewebelage 20 weist zwei zueinander versetzt verlaufende Kettfäden 21, 22 auf, die vorteilhaft z. B. über jeweils zwei Schußfäden 4 verlaufen.The middle, the tensile forces receiving fabric layer 20 has two mutually offset warp threads 21, 22, the advantageous z. B. extend over two weft threads 4.

Eine vorzugsweise ergänzend angeordnete untere Gewebelage 30 besteht aus vier jeweils versetzt zueinander verlaufenden Kettfäden 31, 32, 33, 34, die nach innen - zur mittleren Gewebelage 20 - vorteilhaft über nur einen Schußfaden 4 und nach außen über vorteilhaft zumindest drei Schußfäden 4 laufen. Andere Anordnungen können zweckmäßig sein.A preferably additionally arranged lower fabric layer 30 consists of four each mutually offset warp threads 31, 32, 33, 34, the inward - to the middle fabric layer 20 - advantageously over only one weft thread 4 and outwardly over advantageously at least three weft threads 4 run. Other arrangements may be appropriate.

Die im Ausführungsbeispiel drei Gewebelagen 10, 20, 30 sind über Bindefäden 40, 41, 42, 43 miteinander verbunden. Die Bindefäden 40, 41, 42, 43 sind z. B. in jeweils zwei Fadengruppen unterteilt, wobei die eine Fadengruppe bildenden Bindefäden 42, 43 zueinander versetzt laufen und die obere Gewebelage 10 an die mittlere Gewebelage 20 binden. Die Bindefäden 42 und 43 können vorteilhaft jeweils abwechselnd über einen Schußfaden 4 in der oberen Gewebelage 10 und einen Schußfaden 4 in der mittleren Gewebelage 20 geführt sein. In entsprechender Weise bindet die aus den Bindefäden 40 und 41 bestehende Fadengruppe die untere Gewebelage 30 an die mittlere Gewebelage 20.The three fabric layers 10, 20, 30 in the exemplary embodiment are connected to one another via binding threads 40, 41, 42, 43. The binding threads 40, 41, 42, 43 are z. B. divided into two groups of threads, wherein the thread group forming binding threads 42, 43 run staggered and bind the upper fabric layer 10 to the middle fabric layer 20. The binding threads 42 and 43 may advantageously be alternately guided over a weft thread 4 in the upper fabric layer 10 and a weft thread 4 in the middle fabric layer 20. In a corresponding manner, the thread group consisting of the binding threads 40 and 41 binds the lower fabric layer 30 to the middle fabric layer 20.

Wie in Fig. 4 dargestellt und sich in Verbindung mit den Fig. 1 bis 3 ergibt, ist die die Papierseite 15 bildende obere Gewebelage 10 des Gurtes 1 mit mehreren Streifen 25 aus einer reibwerterhöhenden Beschichtung aufgetragen, die in Längsrichtung 5 des Gurtes 1 verlaufen, mit Abstand zueinander liegen und den Reibkoeffizienten zwischen der aufliegenden Wellpappe und dem Gurt erhöhen. Die Wellpappe liegt weitgehend rutschfrei auf und ist während des Transportes auf dem Gurt 1 sicher gehalten und lagefixiert. Da der Beschichtungsstreifen 25 schmaler als die Breite des Gurtes ist, bleibt trotz der Beschichtung die Dampfdurchlässigkeit erhalten.As in Fig. 4 presented and in conjunction with the Fig. 1 to 3 results, the paper side 15 forming the upper fabric layer 10 of the belt 1 is applied with a plurality of strips 25 from a friction-enhancing coating extending in the longitudinal direction 5 of the belt 1, spaced apart and increase the coefficient of friction between the overlying corrugated cardboard and the belt. The corrugated board is largely slip-free and is securely held during transport on the belt 1 and fixed in position. Since the coating strip 25 narrower than the width of the belt, the vapor permeability is maintained despite the coating.

Zusätzlich können auch wie in DE 197 46 848 A die Kettfäden 13' mit einer reibwerterhöhenden Beschichtung 25' versehen werden, die dann aufgrund ihrer Lage in der Papierseite 15 den reibwerterhöhenden Beschichtungsstreifen bilden. Dabei können in Längsrichtung des Gurtes einzelne Kettfäden 13' mit einer reibwerterhöhenden Beschichtung eingewebt werden oder aber auch alle Kettfäden (11', 12', 13', 14') und/oder auch die Schußfäden 4' der Papierseite 15 mit einer reibwerterhöhenden Beschichtung ausgeführt sein. Die Kettfäden der Papierseite liegen Seite an Seite, bilden aber aufgrund der ausgeführten Webstruktur und/oder z. B. der Wahl des Fadenquerschnitts und auch des Fadenmaterials (Monofilamente) keine dichte, undurchlässige Beschichtung, sondern aufgrund von Lücken zwischen benachbarten Fäden eine Beschichtung, die durchlässig für Dampf ist, so daß von der Papierseite rasch Feuchtigkeit abgeführt werden kann.In addition, as well as in DE 197 46 848 A the warp threads 13 'are provided with a friction-increasing coating 25', which then form the friction-increasing coating strip due to their position in the paper side 15. In the process, individual warp threads 13 'can be woven with a friction-increasing coating in the longitudinal direction of the belt or else all the warp threads (11', 12 ', 13', 14 ') and / or the weft threads 4' of the paper side 15 can be coated with a friction-increasing coating be. The warp threads of the paper side lie side by side, but form due to the executed weave structure and / or z. As the choice of the thread cross-section and the thread material (monofilaments) no dense, impermeable coating, but due to gaps between adjacent threads a coating that is permeable to steam, so that moisture can be dissipated quickly from the paper side.

In Weiterbildung der Erfindung kann, wie sich aus Fig. 4 ergibt, in der oberen Gewebelage 10 des Gurtes 1 zumindest ein in Längsrichtung 5 des Gurtes 1 verlaufender Kettfaden 14'' angeordnet sein, der aus einem hohlraumbildenden Fadenmaterial besteht, also aus einem anderen Fadenmaterial als andere den übrigen Bereich des Gurtes bildende Kettfäden 11, 12, 13 und 14 der oberen Gewebelage 10 (Fig. 2). Die einzelnen Kettfäden 14'' der papierbildenden Gewebelage 10 bestehen aus hohlraumbildendem Fadenmaterial, welches mit Drainagekanälen 50 in Verbindung steht. Jeder Drainagekanal 50 ist bevorzugt als ein mechanisch im Gewebe eingewebter Hohlraum vorgesehen, der sich von der Papierseite weg in Richtung auf die Unterseite des Gurtes erstreckt und so den beschichtungsfreien Bereich des Gurtes schnell und effektiv entwässert. Bevorzugt mündet der Hohlraum 50 auf der der Papierseite abgewandten Unterseite des Gurtes aus und ist insbesondere als ein den Gurt durchragender Hohlraum ausgebildet. Somit sind - wie Fig. 4 zeigt - die Hohlräume 50 nach Art eines Abflusses ausgestaltet, durch welchen Dampf von der Papierseite der oberen Gewebelage 10 durch den Gurt 1 hindurch abgeführt ist.In development of the invention may, as is apparent from Fig. 4 results in the upper fabric layer 10 of the belt 1 at least one extending in the longitudinal direction 5 of the belt 1 warp thread 14 '' to be arranged, which consists of a cavity-forming thread material, ie from a different thread material than other warps forming the remaining region of the belt 11, 12th , 13 and 14 of the upper fabric layer 10 (FIG. Fig. 2 ). The individual warp threads 14 '' of the paper-forming fabric layer 10 consist of cavity-forming thread material which is in communication with drainage channels 50. Each drainage channel 50 is preferably provided as a mechanically woven tissue cavity extending from the paper side extends toward the underside of the belt, thus quickly and effectively dewatering the non-coating area of the belt. Preferably, the cavity 50 opens on the underside of the belt facing away from the paper side and is designed, in particular, as a cavity projecting through the belt. Thus are - how Fig. 4 shows - the cavities 50 configured in the manner of an outflow, through which steam is discharged from the paper side of the upper fabric layer 10 through the belt 1 therethrough.

Die Schußfäden 4' bzw. die Kettfäden 11', 12', 13' und 14'' kreuzen vorteilhaft mechanisch eingewebte Drainagekanäle 50. Insbesondere sind die Drainagekanäle 50 an den Kreuzungspunkten zwischen Schußfäden und Kettfäden angeordnet.The weft threads 4 'or the warp threads 11', 12 ', 13' and 14 '' advantageously intersect mechanically drained drainage channels 50. In particular, the drainage channels 50 are arranged at the intersection points between weft threads and warp threads.

Als hohlraumbildendes Fadenmaterial ist z. B. ein Fadenmaterial mit einem hohen Stärkeanteil anwendbar; bevorzugt besteht das Fadenmaterial vollständig aus Stärke. Dies hat zur Folge, daß im Trockenzustand die hohlraumbildenden Fäden aus Stärke bzw. mit einem hohen Anteil an Stärke wie normale Fäden verarbeitet werden können. In der Gewebestruktur bilden sie Platzhalter, die sich bei Kontakt mit Flüssigkeit, insbesondere Wasser auflösen. Die nach Auflösung und Auswaschen der Stärke aus dem Gewebe sich ergebenden Fehlstellen bilden Drainagekanäle, Drainagerinnen oder dgl., welche jeweils in den mechanisch eingewebten Drainagekanal 50 münden. Auf diese Weise ist im Bereich zwischen den Drainagekanälen 50 eine Art Drainagegitter gelegt, welches die anfallende Flüssigkeit unmittelbar dem mechanisch eingewebten Drainagekanal 50 zuführt und so für eine rasche Entwässerung des auf dem Gewebegurt aufliegenden Gutes sorgt. Dabei bilden die Kettfäden aus dem hohlraumbildenden Fadenmaterial nach einer gewissen Betriebszeit in Längsrichtung verlaufende Längskanäle und Schußfäden 4' aus einem derartigen hohlraumbildenden Fadenmaterial Querkanäle. Da sich die Längskanäle und die Querkanäle aufgrund der Gewebestruktur (Kettfäden/Schußfäden) kreuzen, sind die Querkanäle und die Längskanäle miteinander strömungsleitend verbunden. Eine rasche Abfuhr der Flüssigkeit ist so gegeben.As a cavity-forming thread material z. B. a thread material with a high starch content applicable; Preferably, the thread material is made entirely of starch. This has the consequence that in the dry state, the void-forming threads of starch or with a high proportion of starch can be processed as normal threads. In the tissue structure they form placeholders, which dissolve on contact with liquid, especially water. The resulting after dissolution and washing out of the starch from the tissue defects form drainage channels, drainage or the like., Which each open into the mechanically woven drainage channel 50. In this way, a kind of drainage grid is placed in the region between the drainage channels 50, which feeds the resulting liquid directly to the mechanically drained drainage channel 50 and thus ensures rapid drainage of the material resting on the fabric strap. The warp threads form from the cavity-forming thread material after a certain period of operation longitudinally extending longitudinal channels and weft threads 4 'of such a cavity-forming thread material cross channels. Since the longitudinal channels and the transverse channels intersect on account of the fabric structure (warp threads / weft threads), the transverse channels and the longitudinal channels are connected to one another in a flow-conducting manner. A rapid removal of the liquid is given.

Als hohlraumbildendes Fadenmaterial können auch Hohlraumfasern verwendet werden. Über eine längere Betriebszeit öffnen sich aufgrund des auftretenden Verschleißes die Hohlraumfasern, so daß deren innere Hohlräume selbst Drainagekanäle bilden, die in Längsrichtung der Kett- bzw. Schußfäden verlaufen.Cavity fibers can also be used as cavity-forming thread material. Over a longer period of operation open due to the wear occurring the cavity fibers, so that their inner cavities form even drainage channels extending in the longitudinal direction of the warp or weft threads.

Um die Drainagestruktur auch in der Tiefe fortzusetzen, können auch Kett- bzw. Schußfäden der weiteren Gewebelagen 20 und 30 aus hohlraumbildendem Fadenmaterial vorgesehen sein. Auch können einzelne Bindefäden aus hohlraumbildendem Fadenmaterial vorgesehen werden, wodurch in der Gewebestruktur von der einen Gewebelage 10 zur anderen Gewebelage 20 verlaufende Drainagekanäle geschaffen werden können.In order to continue the drainage structure also in depth, warp or weft threads of the further fabric layers 20 and 30 may also be provided from cavity-forming thread material. Also, individual binding threads can be provided from cavity-forming thread material, whereby in the tissue structure from the one fabric layer 10 to the other fabric layer 20 extending drainage channels can be created.

Es kann zweckmäßig sein, zur Vermeidung einer Störung der Webstruktur das hohlraumbildende Fadenmaterial als Beifaden zu einem Kettfaden, Schußfaden oder Bindefaden vorzusehen. Die die Gewebestruktur bestimmenden Kettfäden, Schußfäden und Bindefäden bleiben in ihrer Anzahl unverändert; ergänzend wird einem Kettfaden und/oder einem Schußfaden und/oder einem Bindefaden ein Faden aus hohlraumbildendem Fadenmaterial als Beifaden hinzugefügt, der als Platzhalter später die gewünschten Drainagekanäle bildet.It may be appropriate to provide the void-forming thread material as a threading to a warp thread, weft thread or binding thread to avoid disturbing the weave structure. The warp threads, weft threads and binding threads determining the fabric structure remain unchanged in their number; In addition, a warp thread and / or a weft thread and / or a binding thread, a thread from cavity forming Thread material added as Beifaden, which later forms the desired drainage channels as a placeholder.

Fig. 5 zeigt eine schematische Darstellung eines weiteren gewebten Gurtes 2 im Längsschnitt. Der Gurt 2 besteht aus einer oberen Gewebelage 50 und einer unteren Gewebelage 60. In der oberen Gewebelage 50, die die Papierseite bildet, verlaufen die vier gegeneinander versetzt angeordneten Kettfäden 51, 52, 53 und 54 und in der unteren Gewebelage 60 die vier gegeneinander versetzt angeordneten Kettfäden 61, 62, 63, 64. Die Schußfäden 6 verlaufen quer zur Längsrichtung 7, wobei die Kettfäden über jeweils zwei Schußfäden 6 verlaufen. Die obere Gewebelage 50 und die untere Gewebelage 60 sind durch Bindefäden 44, 45 miteinander verwebt, wobei die Bindefäden gegeneinander versetzt über jeweils einen Schußfaden 6 verlaufen. Fig. 5 shows a schematic representation of another woven belt 2 in longitudinal section. The belt 2 consists of an upper fabric layer 50 and a lower fabric layer 60. In the upper fabric layer 50, which forms the paper side, the four mutually offset warp threads 51, 52, 53 and 54 and in the lower fabric layer 60, the four offset from each other arranged warp threads 61, 62, 63, 64. The weft threads 6 extend transversely to the longitudinal direction 7, wherein the warp threads extend over two weft threads 6. The upper fabric layer 50 and the lower fabric layer 60 are woven together by binding threads 44, 45, wherein the binding threads offset from each other via a respective weft thread 6 extend.

Fig. 6 zeigt eine schematische Darstellung der Draufsicht auf die obere Gewebelage und Fig. 7 eine schematische Darstellung der Draufsicht auf die untere Gewebelage des gleichen Gurtausschnitts wie in Fig. 6 dargestellt. Die vier Kettfäden 51, 52, 53 und 54 sind nebeneinander angeordnet, daran anschließend sind die beiden Bindefäden 44 und 45 angeordnet. Die Fäden der unteren Gewebelage 60 sind, wie in Fig. 7 dargestellt, entsprechend verwebt. Der Kettfaden 52 der oberen Gewebelage 50 und die Kettfäden 62 und 64 der unteren Gewebelage 60 weisen einen größeren Durchmesser als die übrigen Kettfäden auf. Dadurch sind Drainagekanäle gebildet, wobei die obere Gewebelage 50 mehr Drainagekanäle aufweist als die untere Gewebelage 60. Die Drainagekanäle können auch durch die Fadenstruktur der Kettfäden 51 bis 54 und 61 bis 64 gebildet sein. Hierzu können die Fäden beispielsweise Rillen in ihrer Längsrichtung aufweisen. Fig. 6 shows a schematic representation of the top view of the upper fabric layer and Fig. 7 a schematic representation of the top view of the lower fabric layer of the same belt section as in Fig. 6 shown. The four warp threads 51, 52, 53 and 54 are arranged side by side, then the two binding threads 44 and 45 are arranged thereafter. The threads of the lower fabric layer 60 are as in FIG Fig. 7 shown, correspondingly interwoven. The warp 52 of the upper fabric layer 50 and the warp yarns 62 and 64 of the lower fabric layer 60 have a larger diameter than the remaining warp threads. As a result, drainage channels are formed, wherein the upper fabric layer 50 has more drainage channels than the lower fabric layer 60. The drainage channels can also be formed by the thread structure of the warp threads 51 to 54 and 61 to 64. For this For example, the threads may have grooves in their longitudinal direction.

In den Fig. 8, 9 und 10 ist ein Gurt 3 dargestellt, der eine obere Gewebelage 70 und eine untere Gewebelage 80 aufweist. Die Kettfäden 71 bis 74 der oberen Gewebelage 70 und die Kettfäden 81 bis 84 der unteren Gewebelage 80 verlaufen entsprechend den Kettfäden 51 bis 54 und 61 bis 64 in Fig. 5. Die obere Gewebelage 70 und die untere Gewebelage 80 sind über Bindefäden 46 und 47 miteinander verwebt, wobei die Bindefäden 46, 47 über jeweils einen Schußfaden 8 der Gewebelagen 70 und 80 verlaufen. Fig. 9 zeigt die schematische Draufsicht auf den Gurt 3. Die Kettfäden 71 bis 74 sind nebeneinander verwebt, daran anschließend folgen die Bindefäden 46 und 47. Die Drainagekanäle sind durch Weglassen jeder zweiten Kettfadenfolge der Gewebelage 70 gebildet, so daß auf die Bindefäden 46 und 47 erneut Bindefäden 46 und 47 folgen und sich daran eine weitere Folge von Kettfäden 71 bis 74 anschließt. Die in Fig. 10 als Ansicht auf die Unterseite des Gurts 3 dargestellte untere Gewebelage 80 verläuft entsprechend der in Fig. 7 dargestellten unteren Gewebelage 60 des Gurts 2, wobei die Kettfäden 81 bis 84 der unteren Gewebelage 80 alle den gleichen Durchmesser aufweisen können.In the FIGS. 8, 9 and 10 a belt 3 is shown having an upper fabric layer 70 and a lower fabric layer 80. The warp threads 71 to 74 of the upper fabric layer 70 and the warp threads 81 to 84 of the lower fabric layer 80 extend corresponding to the warp threads 51 to 54 and 61 to 64 in FIG Fig. 5 , The upper fabric layer 70 and the lower fabric layer 80 are interwoven with each other via binding threads 46 and 47, wherein the binding threads 46, 47 extend over in each case a weft thread 8 of the fabric layers 70 and 80. Fig. 9 shows the schematic plan view of the belt 3. The warp yarns 71 to 74 are woven next to each other, then follow the binding threads 46 and 47. The drainage channels are formed by omitting every other Kettfadenfolge the fabric layer 70 so that binding threads 46 and 47 again binding threads 46 and 47 follow and followed by another series of warp threads 71 to 74 followed. In the Fig. 10 as a view of the underside of the belt 3 illustrated lower fabric layer 80 extends according to the in Fig. 7 shown lower fabric layer 60 of the belt 2, wherein the warp threads 81 to 84 of the lower fabric layer 80 may all have the same diameter.

Zur Erhöhung der Temperaturbeständigkeit und Verschleißfestigkeit eines Gurts 1, 2, 3 kann im Randbereich des Gurtes in Gurtlängsrichtung 5, 7 Fadenmaterial mit einer hohen Temperaturbeständigkeit, insbesondere Para-Aramide oder Kevlar, eingewebt sein. Das temperaturbeständige Fadenmaterial kann sich auch über die gesamte Breite einer oberen Gewebelage 10, 50, 70 oder einer unteren Gewebelage 30, 60, 80 oder sowohl einer unteren als auch einer oberen Gewebelage erstrecken. Die Drainagekanäle 50 können auch als Öffnungen in der Webstruktur ausgebildet sein. Hierzu können beispielsweise benachbarte Kettfäden einer Gewebelage überkreuzt sein.To increase the temperature resistance and wear resistance of a belt 1, 2, 3 can be woven in the edge region of the belt in the belt longitudinal direction 5, 7 thread material with a high temperature resistance, in particular para-aramid or Kevlar. The temperature-resistant thread material can also be over the entire width of an upper fabric layer 10, 50, 70 or a lower fabric layer 30, 60, 80 or both a lower and an upper fabric layer. The drainage channels 50 may also be formed as openings in the weave structure. For this purpose, for example, adjacent warp threads of a fabric layer can be crossed.

Das Fadenmaterial kann aus 65% Polyester und 35% Viskose bestehen. Es kann jedoch auch eine andere Zusammensetzung vorteilhaft sein. Bevorzugt wird als Fadenmaterial ein Monofilament verwendet.The thread material can consist of 65% polyester and 35% viscose. However, another composition may be advantageous. Preferably, a monofilament is used as the thread material.

Als Material für die reibwerterhöhenden Streifen wird bevorzugt Silikon verwendet. Auch Polyurethan kann vorteilhaft sein.Silicone is preferably used as the material for the friction-increasing strips. Also polyurethane can be advantageous.

Um den Gurt antistatisch zu gestalten, ist vorgesehen, dem Fadenmaterial der Schußfäden und/oder der Kettfäden elektrisch leitfähige Metallfasern beizumischen. Schuß- oder Kettfäden aus einem Material mit beigemischten elektrisch leitfähigen Metallfasern, z. B. Stahlfasern können sowohl in der oberen Gewebelage, in der die Zugkräfte aufnehmenden Gewebelage oder auch in einer weiteren Gewebelage vorgesehen sein, wobei die Fäden bevorzugt auf der Papierseite vorgesehen sind. Es kann ausreichend sein, nur einzelne Schuß- und/oder Kettfäden in der Papieroberseite aus einem Metallfasern enthaltenen Material zu bilden, um eine signifikante Verbesserung der antistatischen Eigenschaften des Gurtes zu erhalten.To make the belt antistatic, it is provided to mix the thread material of the weft threads and / or the warp threads electrically conductive metal fibers. Weft or warp threads of a material with admixed electrically conductive metal fibers, eg. B. steel fibers may be provided both in the upper fabric layer in which the tensile forces receiving fabric layer or in a further fabric layer, the threads are preferably provided on the paper side. It may be sufficient to form only single weft and / or warp threads in the paper top from material containing metal fibers to obtain a significant improvement in the antistatic properties of the belt.

Werden Schuß- und/oder Kettfäden aus Monofilamenten verwendet, können die Materialeigenschaften der Monofilamente vorteilhaft zur Bildung von Drainagekanälen genutzt werden.If weft and / or warp threads of monofilaments are used, the material properties of the monofilaments can be used to advantage for the formation of drainage channels.

Monofilamente haben eine im wesentliche druckstabile Querschnittsform, so daß - auch bei dichter, fester Webart - die Querschnittsform kaum Änderungen erfährt. Dadurch verbleiben in der Webstruktur Lücken, Hohlräume und dgl., wenn z. B. Monofilamente mit kreisförmiger, elliptischer oder ähnlicher Querschnittsform verwendet werden. Diese auch bei enger Packungsdichte bestehenden Hohlräume und Lücken werden so in die Webstruktur eingebettet, daß von der Papierseite Feuchtigkeit abführende Kanäle gebildet sind.Monofilaments have a substantially pressure-stable cross-sectional shape, so that - even with dense, solid weave - the cross-sectional shape hardly undergoes changes. As a result, gaps, cavities and the like remain in the weave structure. As monofilaments with circular, elliptical or similar cross-sectional shape can be used. These voids and gaps, which are also present in tight packing, are embedded in the weave structure in such a way that moisture-removing channels are formed on the paper side.

Claims (4)

  1. Woven belt for a corrugating machine, with a first fabric layer (20) of warp threads (21, 22) and weft threads (4) absorbing the tensile forces acting in the longitudinal direction of the belt and with a further top fabric layer (10) of warp threads (11, 12, 13, 14) and weft threads (4) which covers the first fabric layer (20) and forms a paper side (15) for the support of the corrugated board, wherein the fabric layers (10, 20) are joined to each other and the top fabric layer (10) forming the paper side (15) is steam-permeable in order to remove moisture from the paper side, and wherein the top fabric layer (10) forming the paper side (15) is provided with a material (25') increasing its coefficient of friction,
    characterised in that several coating strips (25) of a material (25') increasing its coefficient of friction are applied to the top fabric layer (10) forming the paper side (15), wherein a strip (25) is narrower transverse to the longitudinal direction (5) of the belt (1) than the width of the belt (1) and several strips extending in the longitudinal direction (5) of the belt (1) are provided across the width of the fabric layer (10) forming the paper side (15), drainage channels (50) being provided between adjacent coating strips (25) for the removal of moisture.
  2. Belt according to claim 1,
    characterised in that the coating consists of silicone or polyurethane.
  3. Belt according to claim 1 or 2,
    characterised in that electrically conductive metal fibres are added to the material of the warp threads and/or of the weft threads.
  4. Belt according to any of claims 1 to 3,
    characterised in that the warp threads and/or the weft threads consist of a monofilament with a largely pressure-stable cross-section.
EP20030748033 2003-09-16 2003-09-16 Woven belt for a corrugated paper board machine Expired - Lifetime EP1664410B1 (en)

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AT (1) ATE450639T1 (en)
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DE50312198D1 (en) 2010-01-14
JP2007515308A (en) 2007-06-14
ES2337675T3 (en) 2010-04-28
AU2003267366A1 (en) 2005-04-27
US20060228961A1 (en) 2006-10-12
WO2005035846A1 (en) 2005-04-21
ATE450639T1 (en) 2009-12-15
JP4630818B2 (en) 2011-02-09

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