EP1054097B1 - Papermaking fabric, in particular a dryer cloth - Google Patents
Papermaking fabric, in particular a dryer cloth Download PDFInfo
- Publication number
- EP1054097B1 EP1054097B1 EP00108201A EP00108201A EP1054097B1 EP 1054097 B1 EP1054097 B1 EP 1054097B1 EP 00108201 A EP00108201 A EP 00108201A EP 00108201 A EP00108201 A EP 00108201A EP 1054097 B1 EP1054097 B1 EP 1054097B1
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- EP
- European Patent Office
- Prior art keywords
- threads
- paper
- longitudinal
- making machine
- transverse
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
- D21F1/0054—Seams thereof
-
- 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
-
- 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
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/902—Woven fabric for papermaking drier section
Definitions
- the invention relates to a paper machine clothing, especially as a dryer fabric, with one for the pad a paper web provided and one of them machine side facing away, the paper machine clothing has a fabric of longitudinal and transverse threads or consists of and with two adjacent longitudinal threads tied to form a pair of longitudinal threads tie with cross threads.
- Such a dryer fabric can be found in EP-A-0 837 179 or EP 0 609 664 A1.
- the dryer fabric known from EP 0 609 664 A1 consists of a single-layer fabric with round Cross threads, which are also designed as hollow monofilaments can be, and with two longitudinal thread systems, the Longitudinal threads are designed as flat monofilaments.
- One the longitudinal thread systems run primarily on the paper side, with two adjacent longitudinal threads Longitudinal thread pair forms, which is identical to the transverse threads integrates.
- the second longitudinal thread system runs in each case a longitudinal thread below a pair of longitudinal threads.
- the longitudinal threads are often used to form the loops of the paper machine fabric by a Part of the longitudinal threads passed beyond the last cross thread and forming an eyelet back into the tissue is woven back while another part of the longitudinal threads immediately, i.e. woven back without eyelets (see US 5,089,324; US 4,438,789).
- the weaving back happens to those disclosed in these documents Weave in such a way that the woven part of the respective longitudinal thread next to this is involved, wherein the course of this section from that of the one in question Longitudinal thread deviates.
- the paper machine fabric according to EP 0 532 510 B1 the woven back section below the associated longitudinal thread back into the tissue introduced so that the loops do not twist subject.
- the invention has for its object the front edges with a paper machine clothing of the aforementioned To form a kind for the purpose of producing a plug-in seam, that the product image especially on the paper side over the entire length of the paper machine clothing is constant.
- This object is achieved in that the front edges of the paper machine clothing Longitudinal thread of a longitudinal thread pair with the neighboring one Longitudinal thread of the adjacent pair of longitudinal threads a loop forms.
- the basic idea of the invention is therefore that Longitudinal thread formation of the loops so that the adjacent by a loop of longitudinal threads run, but to two different neighboring ones Longitudinal thread pairs belong.
- This type of longitudinal thread guide guarantees an even product image on the paper side over the entire length of the paper machine clothing, loops for a plug-in wire seam being formed at the same time become.
- the properties of paper machine clothing are therefore over the entire length by the embossed in pairs guiding the longitudinal threads.
- Cross threads on the machine side of at least one Part of transverse threads designed as flat transverse threads are in contact and each a flat cross thread and its attached to it adjacent transverse threads of at least part of the Longitudinal threads are integrated together.
- This training is characterized by special dimensional stability.
- the transverse threads are designed as flat transverse threads on which Protruding longitudinal webs formed on the machine side are, the longitudinal webs in the direction of the longitudinal axis the flat transverse threads extend.
- This measure too serves the dimensional stability of the transverse threads and ensures for the smooth paper-side surface of the flat cross threads remains as flat as possible and thus the paper web widely supported.
- the production of such flat cross threads can by extruding the plastic material used happen.
- the longitudinal webs can meet the respective requirements and be adapted to the manufacturing possibilities and in this Frames have any cross-section. Come into question in particular rectangular, trapezoidal and / or round Cross-sections.
- the number of longitudinal webs is in principle not limited. Particularly favorable conditions result itself when two or three longitudinal webs are formed side by side are.
- the flat transverse threads expediently have an extension in the longitudinal direction (running direction) of the paper machine clothing from 1 to 25 mm, preferably 10 to 15 mm, and in the thickness direction (across the plane of the paper machine clothing) from 0.2 mm to 1 mm. Fall by definition but always only under the term "flat cross threads" those where the thickness is less than the extension in the longitudinal direction of the paper machine clothing.
- the longitudinal threads can be formed as flat threads.
- Width from 0.5 to 5 mm and in the thickness direction go from 0.2 to 1 mm.
- the longitudinal threads should only have one flat transverse thread each embed, like a plain weave, you can see the combination of flat and round cross threads as a unit.
- the Dryer fabric 1 wide flat transverse threads on the paper side - designated by way of example with 2 - that of pairs of longitudinal threads - designated by way of example with 3 - involved be, each pair of longitudinal threads 3 from two longitudinal threads - exemplified with 4, 5 - exists within of a pair of longitudinal threads 3 run identically.
- the Longitudinal thread pairs 3 tie with the flat transverse threads 2 Type of plain weave, d. H. they bind on the paper side a flat cross thread 2 and the machine side then the flat cross thread 2 and then again on the paper side the following flat cross thread 2.
- the longitudinal threads 4, 5 of the longitudinal thread pairs 3 form in the Version below the dash-dotted line on the Front edge 8 of the dryer fabric 1 large loops - exemplary designated 9 - and small loops - exemplary designated with 10 - from.
- the big loops 9 take turns with small loops 10.
- the version above the dash-dotted line forms only large ones Loops 9 out. It is understood that through this representation two different types of front edges 8 are shown should be that only with a dryer a loop version is available.
- the big loops 9 form loop eyelets 11, these loops 9 with corresponding large loops on the other front edge of the dryer fabric 1 are thus overlapped can that all loop eyelets 11 are aligned and thus form a channel through which is known per se Way a plug wire for connecting the front edges 8th pushed to form a so-called plug wire seam can be.
- the dryer fabric 21 shown in FIG. 3 differs differs from the dryer 1 according to FIGS. 1 and 2 only through the design of the example designated 22 Cross threads.
- These cross threads 22 are in one piece Molded strands formed.
- Each cross thread 22 has a flat transverse thread 23 on the paper side, on the machine side thereof two longitudinal webs 24, 25 are formed side by side are.
- the longitudinal webs 24, 25 have an essentially circular shape Cross section and increase the bending stiffness of the associated flat transverse thread 23.
- the cross threads 22 are of longitudinal threads 26 in the same Integrated like the combination of flat cross threads 2 and machine-side round transverse threads 6, 7 at the dryer fabric 1 according to FIGS. 1 and 2.
Description
Die Erfindung betrifft eine Papiermaschinenbespannung, insbesondere als Trockensieb, mit einer für die Auflage einer Papierbahn vorgesehenen Papierseite und einer davon abgewandten Maschinenseite, wobei die Papiermaschinenbespannung ein Gewebe aus Längs- und Querfäden hat oder daraus besteht und wobei jeweils zwei benachbarte Längsfäden unter Bildung eines Längsfadenpaares gleichbindig mit Querfäden einbinden.The invention relates to a paper machine clothing, especially as a dryer fabric, with one for the pad a paper web provided and one of them machine side facing away, the paper machine clothing has a fabric of longitudinal and transverse threads or consists of and with two adjacent longitudinal threads tied to form a pair of longitudinal threads tie with cross threads.
Ein solches Trockensieb ist der EP-A-0 837 179 oder der EP 0 609 664 A1 zu entnehmen.Such a dryer fabric can be found in EP-A-0 837 179 or EP 0 609 664 A1.
Das aus der EP 0 609 664 A1 bekannte Trockensieb besteht aus einem einlagigen Gewebe mit runden Querfäden, die auch als Hohlmonofilamente ausgebildet sein können, und mit zwei Längsfadensystemen, wobei die Längsfäden als Flachmonofilamente gestaltet sind. Eines der Längsfadensysteme verläuft vornehmlich auf der Papierseite, wobei jeweils zwei benachbarte Längsfäden ein Längsfadenpaar bildet, das gleichbindig mit den Querfäden einbindet. Mit dem zweiten Längsfadensystem verläuft jeweils ein Längsfaden unterhalb eines Längsfadenpaares. The dryer fabric known from EP 0 609 664 A1 consists of a single-layer fabric with round Cross threads, which are also designed as hollow monofilaments can be, and with two longitudinal thread systems, the Longitudinal threads are designed as flat monofilaments. One the longitudinal thread systems run primarily on the paper side, with two adjacent longitudinal threads Longitudinal thread pair forms, which is identical to the transverse threads integrates. The second longitudinal thread system runs in each case a longitudinal thread below a pair of longitudinal threads.
Sofern Trockensiebe, wie sie sich aus der EP 0 609 664 A1 ergeben, flach gewebt werden, ist ihre Länge endlich, so daß ihre Stirnkanten nach dem Einzug in die Papiermaschine miteinander verbunden werden müssen. Die EP 0 609 664 A1 enthält nichts darüber, wie dies bei dem darin offenbarten Trockensieb geschieht.Provided dryer fabrics as they are known from EP 0 609 664 A1 revealed to be woven flat, their length is finite, so that their front edges after moving into the paper machine need to be connected. The EP 0 609 664 A1 contains nothing about how this is done with the drying dryer disclosed therein happens.
Im Stand der Technik ist es bekannt, die Enden bzw. Stirnkanten von Papiermaschinengeweben mit Hilfe einer sogenannten Steckdrahtnaht zu verbinden. Hierzu werden an den Stirnkanten ösenbildende Schlaufen ausgebildet, die beim Zusammenfügen der Stirnkanten in Überlappung gebracht werden, so daß die Ösen der Schlaufen beider Stirnkanten fluchten und folglich einen Durchgangskanal bilden, in den ein Steckdraht eingeschoben werden kann. Dieser Steckdraht kuppelt die Ösen beider Stirnkanten und macht somit die Papiermaschinenbespannung endlos.In the prior art it is known that the ends or Front edges of paper machine fabrics with the help of a to connect so-called plug wire seam. To do this, at loops forming the front edges, the overlapped when joining the front edges be so that the loops of the loops of both Front edges are aligned and consequently a through channel form, into which a plug wire can be inserted. This plug wire couples the eyelets of both front edges and makes the paper machine clothing endless.
Zur Ausbildung der Schlaufen werden vielfach die Längsfäden des Papiermaschinengewebes herangezogen, indem ein Teil der Längsfäden über den letzten Querfaden hinausgeführt und unter Ausbildung einer Öse wieder in das Gewebe zurückgewebt wird, während ein anderer Teil der Längsfäden unmittelbar, d.h. ohne Ösenbildung wieder zurückgewebt wird (vgl. US 5 089 324; US 4 438 789). Das Zurückweben geschieht bei den in diesen Dokumenten offenbarten Geweben in der Weise, daß der zurückgewebte Abschnitt des jeweiligen Längsfadens neben diesem eingebunden wird, wobei der Verlauf dieses Abschnittes von dem des betreffenden Längsfadens abweicht. Bei dem Papiermaschinengewebe nach der EP 0 532 510 B1 wird der zurückgewebte Abschnitt unterhalb des zugehörigen Längsfadens wieder in das Gewebe eingeführt, so daß die Schlaufen keinen Verwindungen unterliegen.The longitudinal threads are often used to form the loops of the paper machine fabric by a Part of the longitudinal threads passed beyond the last cross thread and forming an eyelet back into the tissue is woven back while another part of the longitudinal threads immediately, i.e. woven back without eyelets (see US 5,089,324; US 4,438,789). The weaving back happens to those disclosed in these documents Weave in such a way that the woven part of the respective longitudinal thread next to this is involved, wherein the course of this section from that of the one in question Longitudinal thread deviates. With the paper machine fabric according to EP 0 532 510 B1 the woven back section below the associated longitudinal thread back into the tissue introduced so that the loops do not twist subject.
Der Erfindung liegt die Aufgabe zugrunde, die Stirnkanten bei einer Papiermaschinenbespannung der eingangs genannten Art zwecks Herstellung einer Steckdrahtnaht so auszubilden, daß das Warenbild insbesondere auf der Papierseite über die gesamte Länge der Papiermaschinenbespannung gleichbleibend ist.The invention has for its object the front edges with a paper machine clothing of the aforementioned To form a kind for the purpose of producing a plug-in seam, that the product image especially on the paper side over the entire length of the paper machine clothing is constant.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß an den Stirnkanten der Papiermaschinenbespannung jeweils der Längsfaden eines Längsfadenpaars mit dem benachbarten Längsfaden des benachbarten Längsfadenpaars eine Schlaufe bildet. Grundgedanke der Erfindung ist es also, die Längsfadenbildung der Schlaufen so zurückzuweben, daß die durch eine Schlaufe zusammengehörenden Längsfäden benachbart verlaufen, jedoch zu zwei verschiedenen benachbarten Längsfadenpaaren gehören. Diese Art der Längsfadenführung garantiert ein gleichmäßiges Warenbild auf der Papierseite über die gesamte Länge der Papiermaschinenbespannung, wobei gleichzeitig Schlaufen für eine Steckdrahtnaht ausgebildet werden. Die Eigenschaften der Papiermaschinenbespannung werden deshalb über die gesamte Länge durch die paarweise Führung der Längsfäden geprägt.This object is achieved in that the front edges of the paper machine clothing Longitudinal thread of a longitudinal thread pair with the neighboring one Longitudinal thread of the adjacent pair of longitudinal threads a loop forms. The basic idea of the invention is therefore that Longitudinal thread formation of the loops so that the adjacent by a loop of longitudinal threads run, but to two different neighboring ones Longitudinal thread pairs belong. This type of longitudinal thread guide guarantees an even product image on the paper side over the entire length of the paper machine clothing, loops for a plug-in wire seam being formed at the same time become. The properties of paper machine clothing are therefore over the entire length by the embossed in pairs guiding the longitudinal threads.
In Ausbildung der Erfindung ist vorgesehen, daß abwechselnd eine Schlaufe eng um den letzten Querfaden herumgelegt und eine Schlaufe unter Bildung einer Schlaufenöse herausgezogen ausgebildet ist. Statt dessen können auch sämtliche Schlaufen unter Bildung einer Schlaufenöse herausgezogen ausgebildet sein.In an embodiment of the invention it is provided that alternately a loop tightly wrapped around the last cross thread and a loop to form a loop eyelet is pulled out. Instead, you can too all loops pulled out to form a loop eyelet be trained.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß benachbarte Längsfadenpaare die Querfäden entgegengesetzt einbinden. Falls ein Teil oder sämtliche Querfäden als Flachquerfäden ausgebildet sind, sollten die Längsfadenpaare jeweils nur einen der Flachquerfäden einbinden.In a further embodiment of the invention, that adjacent pairs of longitudinal threads oppose the transverse threads integrated. If part or all of the cross threads are formed as flat cross threads, the longitudinal thread pairs Only bind one of the flat cross threads at a time.
Nach einen weiteren Merkmal der Erfindung ist vorgesehen, daß jeweils wenigstens zwei als Rundquerfäden ausgebildete Querfäden an der Maschinenseite von zumindest einem Teil von als Flachquerfäden ausgebildeten Querfäden anliegen und jeweils ein Flachquerfaden und seine an ihm anliegenden Rundquerfäden von zumindest einem Teil der Längsfäden gemeinsam eingebunden sind. Diese Ausbildung zeichnet sich durch besondere Dimensionsstabilität aus.According to a further feature of the invention, that each have at least two formed as circular cross threads Cross threads on the machine side of at least one Part of transverse threads designed as flat transverse threads are in contact and each a flat cross thread and its attached to it adjacent transverse threads of at least part of the Longitudinal threads are integrated together. This training is characterized by special dimensional stability.
Es ist nicht notwendig, daß die an einem Flachquerfaden maschinenseitig anliegenden Rundquerfäden aneinanderliegen. Eine Verschiebung der Rundquerfäden gegenüber den Flachquerfäden wird jedoch reduziert, wenn die Rundquerfäden sich gegenseitig berühren. Dabei sollte die Summe der Durchmesser der Rundquerfäden, die an einem Flachquerfaden anliegen, nicht größer sein als dessen Erstrekkung in Längsrichtung, damit die Rundquerfäden nicht über die Flachquerfäden überstehen. It is not necessary that on a flat cross thread Round cross threads lying on the machine side lie against each other. A shift of the round cross threads compared to the Flat cross threads, however, is reduced when the round cross threads touch each other. The sum should the diameter of the round cross threads on a flat cross thread not be greater than its extent lengthways so that the round cross threads do not have the flat transverse threads survive.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß neben den Flachquerfäden und den an ihnen anliegenden Rundquerfäden keine weiteren Querfäden vorhanden sind, also immer eine Kombination aus Flach- und diese unterstützenden Rundquerfäden vorhanden ist. Alternativ dazu kann jedoch auch vorgesehen sein, daß ein Teil der Längsfäden die Flachquerfäden nur papierseitig einbindet und ansonsten nur mit Rundquerfäden einbindet, die zwischen den an den Flachquerfäden anliegenden Rundquerfäden verlaufen.In a further embodiment of the invention, that next to the flat cross threads and the ones attached to them Round cross threads there are no further cross threads, So always a combination of flat and supportive Round cross threads is present. Alternatively However, it can also be provided that part of the longitudinal threads the flat cross threads only binds on the paper side and otherwise only integrates with circular cross threads between the round transverse threads resting on the flat transverse threads.
Alternativ zu der vorbeschriebenen Kombination aus Flachund Rundquerfäden ist vorgesehen, daß wenigstens ein Teil der Querfäden als Flachquerfaden ausgebildet ist, an denen maschinenseitig vorspringende Längsstege angeformt sind, wobei die Längsstege sich in Richtung der Längsachse der Flachquerfäden erstrecken. Auch diese Maßnahme dient der Dimensionsstabilität der Querfäden und sorgt dafür, daß die glatte papierseitige Oberfläche der Flachquerfäden möglichst eben bleibt und damit die Papierbahn großflächig unterstützt. Die Herstellung solcher Flachquerfäden kann durch Extrudierung des verwendeten Kunststoffmaterials geschehen.As an alternative to the combination of flat and above Round cross threads are provided that at least one part the transverse threads are designed as flat transverse threads on which Protruding longitudinal webs formed on the machine side are, the longitudinal webs in the direction of the longitudinal axis the flat transverse threads extend. This measure too serves the dimensional stability of the transverse threads and ensures for the smooth paper-side surface of the flat cross threads remains as flat as possible and thus the paper web widely supported. The production of such flat cross threads can by extruding the plastic material used happen.
Die Längsstege können den jeweiligen Anforderungen und den Herstellungsmöglichkeiten angepaßt werden und in diesem Rahmen beliebigen Querschnitt haben. In Frage kommen insbesondere rechteckige, trapezförmige und/oder runde Querschnitte. Die Anzahl der Längsstege ist prinzipiell nicht begrenzt. Besonders günstige Verhältnisse ergeben sich, wenn nebeneinander zwei oder drei Längsstege ausgeformt sind.The longitudinal webs can meet the respective requirements and be adapted to the manufacturing possibilities and in this Frames have any cross-section. Come into question in particular rectangular, trapezoidal and / or round Cross-sections. The number of longitudinal webs is in principle not limited. Particularly favorable conditions result itself when two or three longitudinal webs are formed side by side are.
Die Flachquerfäden haben zweckmäßigerweise eine Erstrekkung in Längsrichtung (Laufrichtung) der Papiermaschinenbespannung von 1 bis 25 mm, vorzugsweise 10 bis 15 mm, und in Dickenrichtung (quer zur Ebene der Papiermaschinenbespannung) von 0,2 mm bis 1 mm. Definitionsgemäß fallen unter den Begriff "Flachquerfäden" jedoch immer nur solche, bei denen die Dicke geringer ist als die Erstrekkung in Längsrichtung der Papiermaschinenbespannung. Auch die Längsfäden können als Flachfäden ausgebildet sein. Hier sollte die Erstreckung in Querrichtung der Papiermaschinenbespannung (Breite) von 0,5 bis 5 mm und in Dikkenrichtung von 0,2 bis 1 mm gehen.The flat transverse threads expediently have an extension in the longitudinal direction (running direction) of the paper machine clothing from 1 to 25 mm, preferably 10 to 15 mm, and in the thickness direction (across the plane of the paper machine clothing) from 0.2 mm to 1 mm. Fall by definition but always only under the term "flat cross threads" those where the thickness is less than the extension in the longitudinal direction of the paper machine clothing. Also the longitudinal threads can be formed as flat threads. Here should extend in the transverse direction of the paper machine clothing (Width) from 0.5 to 5 mm and in the thickness direction go from 0.2 to 1 mm.
Um eine Verschiebung der Rundquerfäden gegenüber den von ihnen unterstützten Flachquerfäden weitgehend zu vermeiden, sollten die Längsfäden jeweils nur einen Flachquerfaden einbinden, also etwa nach Art einer Leinwandbindung, sieht man die Kombination aus Flach- und Rundquerfäden als eine Einheit an.In order to shift the round transverse threads compared to that of to largely avoid supported flat cross threads, the longitudinal threads should only have one flat transverse thread each embed, like a plain weave, you can see the combination of flat and round cross threads as a unit.
Als Materialien für die Längsfäden kommen insbesondere hydrolyse-stabilisiertes Polyester PET, PPS, PEEK und PCTA in Frage. Für die Querfäden sind insbesondere die Materialien hydrolyse-stabilisiertes Polyester PET, PPS, Polysulfon, PEEK, PCTA und PEN geeignet. In particular, come as materials for the longitudinal threads hydrolysis-stabilized polyester PET, PPS, PEEK and PCTA in question. For the cross threads are especially the Materials hydrolysis-stabilized polyester PET, PPS, Suitable for polysulfone, PEEK, PCTA and PEN.
In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels näher veranschaulicht. Es zeigen:
- Fig. 1
- eine Draufsicht auf den Endabschnitt eines Trockensiebes;
- Fig. 2
- einen Längsschnitt durch den Ausschnitt gemäß Fig. 1;
- Fig. 3
- einen Längsschnitt durch ein Trockensieb, das gegenüber dem Trockensieb gemäß den Figuren 1 und 2 bezüglich der Querfäden abgewandelt ist.
- Fig. 1
- a plan view of the end portion of a dryer fabric;
- Fig. 2
- a longitudinal section through the section of FIG. 1;
- Fig. 3
- a longitudinal section through a dryer fabric, which is modified compared to the dryer fabric according to Figures 1 and 2 with respect to the transverse threads.
Aus der Draufsicht gemäß Fig. 1 ist zu erkennen, daß das
Trockensieb 1 auf der Papierseite breite Flachquerfäden -
beispielhaft mit 2 bezeichnet - aufweist, die von Längsfadenpaaren
- beispielhaft mit 3 bezeichnet - eingebunden
werden, wobei jedes Längsfadenpaar 3 aus zwei Längsfäden
- beispielhaft mit 4, 5 bezeichnet - besteht, die innerhalb
eines Längsfadenpaares 3 gleichbindig verlaufen. Die
Längsfadenpaare 3 binden mit den Flachquerfäden 2 nach
Art einer Leinwandbindung ein, d. h. sie binden papierseitig
einen Flachquerfaden 2 und maschinenseitig den
darauf folgenden Flachquerfaden 2 und dann wieder papierseitig
den nachfolgenden Flachquerfaden 2 ein.From the top view of FIG. 1 it can be seen that the
Dryer fabric 1 wide flat transverse threads on the paper side -
designated by way of example with 2 - that of pairs of longitudinal threads
- designated by way of example with 3 - involved
be, each pair of
Das Einbinden der Längsfäden 4, 5 mit den Flachquerfäden
2 ist noch deutlicher Fig. 2 zu entnehmen. In dieser
Figur ist zu erkennen, daß an der Unterseite der Flachquerfäden
2 jeweils zwei Rundquerfäden - beispielhaft mit
6, 7 bezeichnet - anliegen und jene paarweise unterstützen.
Eine Verschiebung der Rundquerfäden 6, 7 relativ zu
den Flachquerfäden 2 wird durch die wechselweise Einbindung
der Flachquerfäden 2 und den zugehörigen Rundquerfäden
6, 7 durch die Längsfadenpaare 3 vermieden.The incorporation of the
Die Längsfäden 4, 5 der Längsfadenpaare 3 bilden in der
Version unterhalb der strichpunktierten Linie an der
Stirnkante 8 des Trockensiebes 1 große Schlaufen - beispielhaft
mit 9 bezeichnet - und kleine Schlaufen - beispielhaft
mit 10 bezeichnet - aus. Die großen Schlaufen 9
wechseln sich mit kleinen Schlaufen 10 ab. Die Version
oberhalb der strichpunktierten Linie bildet nur große
Schlaufen 9 aus. Es versteht sich, daß durch diese Darstellung
zwei verschiedene Arten von Stirnkanten 8 gezeigt
werden sollen, daß jedoch bei einem Trockensieb nur
eine Schlaufenversion vorhanden ist. Die großen Schlaufen
9 bilden Schlaufenösen 11 aus, wobei diese Schlaufen 9
mit entsprechenden großen Schlaufen an der anderen Stirnkante
des Trockensiebes 1 so in Überlappung gebracht werden
können, daß sämtliche Schlaufenösen 11 fluchten und
damit einen Kanal bilden, durch den in an sich bekannter
Weise ein Steckdraht zur Verbindung der Stirnkanten 8
unter Bildung einer sogenannten Steckdrahtnaht geschoben
werden kann.The
Die Besonderheit der Schlaufenbildung besteht vorliegend
darin, daß ein Längsfaden 4 eines Längsfadenpaares 3 nach
der Schlaufenbildung in der Weise zurückgewebt wird, daß
er den benachbarten Längsfaden 12 des benachbarten Längsfadepaares
13 bildet. Entsprechendes gilt für den Längsfaden
5 des Längsfadenpaares 3, d. h. durch die Schlaufenbildung
wird er zum benachbarten Längsfaden 14 des
benachbarten Längsfadenpaares 15. Hierdurch ergibt sich
eine nur geringe Verwindung der Schlaufen 9, 10 und ein
auf der Papierseite sehr gleichmäßiges Warenbild des
Trockensiebes 1.The peculiarity of the loop formation exists here
in that a
Das in Figur 3 dargestellte Trockensieb 21 unterscheidet
sich von dem Trockensieb 1 gemäß den Figuren 1 und 2 lediglich
durch die Gestaltung der beispielhaft mit 22 bezeichneten
Querfäden. Diese Querfäden 22 sind als einstückige
Formstränge ausgebildet. Jeder Querfaden 22 hat
papierseitig einen Flachquerfaden 23, an dessen Maschinenseite
nebeneinander zwei Längsstege 24, 25 angeformt
sind. Die Längsstege 24, 25 haben im wesentlichen kreisförmigen
Querschnitt und vergrößern die Biegesteifigkeit
des jeweils zugehörigen Flachquerfadens 23.The
Die Querfäden 22 werden von Längsfäden 26 in der gleichen
Weise eingebunden wie die Kombination aus Flachquerfäden
2 und maschinenseitig anliegenden Rundquerfäden 6, 7 bei
dem Trockensieb 1 gemäß den Figuren 1 und 2.The
Claims (16)
- A paper-making machine covering, in particular a drying screen (1, 21), having a paper side provided for supporting a web of paper and a machine side facing away from the paper side, in which case the paper-making machine covering (1) has or consists of a woven structure made of longitudinal threads (4, 5, 12, 14, 26) and transverse threads (2, 6, 7, 22), and in which two adjacent longitudinal threads (4, 5, 26) are each linked with the same weave to transverse threads (2, 6, 7, 22) to form a pair of longitudinal threads (3), characterized in that, at the end edges of the paper-making machine covering (1, 21), each longitudinal thread (4, 5, 26) of a pair of longitudinal threads (3) forms a loop (9, 10) with the adjacent longitudinal thread (12, 14) of the adjacent pair of longitudinal threads (13, 15).
- A paper-making machine covering according to Claim 1, characterized in that alternately one loop (10) is laid closely around the last transverse thread (2, 6, 7, 22), and one loop (9) is pulled out to form a looped eyelet (11).
- A paper-making machine covering according to Claim 1, characterized in that all the loops (9) are pulled out to form looped eyelets (11).
- A paper-making machine covering according to one of Claims 1 to 3, characterized in that adjacent pairs of longitudinal threads (3, 12, 14) are woven into the transverse threads (2, 6, 7, 22) in opposite directions.
- A paper-making machine covering according to one of Claims 1 to 4, characterized in that each pair of longitudinal threads (3, 13, 15) only ties in one transverse thread taking the form of a flat transverse thread (2, 23).
- A paper-making machine covering according to one of Claims 1 to 5, characterized in that in each case at least two transverse threads formed as round transverse threads (6, 7) rest on the machine side against at least some of the transverse threads formed as flat transverse threads (2) and in each case one flat transverse thread (2) and its adjacent round transverse threads (6, 7) are together tied in by at least some of the longitudinal threads (4, 5, 12, 14).
- A paper-making machine covering according to Claim 6, characterized in that the round transverse threads (6, 7) resting against a flat transverse thread (2) on the machine side rest against one another.
- A paper-making machine covering according to Claim 6 or 7, characterized in that the sum of the diameters of the round transverse threads (6, 7), resting against a flat transverse thread (2), is not greater than the extension of the flat transverse thread (2) in longitudinal direction of the paper-making machine covering (1).
- A paper-making machine covering according to one of Claims 6 to 8, characterized in that no further transverse threads are provided apart from the flat transverse threads (2) and the round transverse threads (6, 7) resting against them.
- A paper-making machine covering according to one of Claims 6 to 8, characterized in that some of the longitudinal threads tie in the flat transverse threads only on the paper side and otherwise only tie in with round transverse threads, which extend between the round transverse threads resting against the flat transverse threads.
- A paper-making machine covering according to one of Claims 1 to 5, characterized in that at least some of the transverse threads (22) are formed as flat transverse threads (23), on which projecting longitudinal ribs (24, 25) are formed on the machine side.
- A paper-making machine covering according to Claim 11, characterized in that the longitudinal ribs (24, 25) have a rectangular, trapezoidal and/or round cross-section.
- A paper-making machine covering according to Claim 11 or 12, characterized in that two or three longitudinal ribs (24, 25) are formed next to one another.
- A paper-making machine covering according to one of Claims 6 to 13, characterized in that the flat transverse threads (2, 23) have an extension in longitudinal direction of the paper-making machine covering (1, 21) of 1 to 25 mm, and preferably 10 to 15 mm, and in direction of thickness of 0.2 to 1 mm.
- A paper-making machine covering according to one of Claims 6 to 14, characterized in that the longitudinal threads (4, 5, 12, 14, 26) are formed as flat longitudinal threads.
- A paper-making machine covering according to Claim 15, characterized in that the flat longitudinal threads (4, 5, 12, 14, 26) have an extension in transverse direction of the paper-making machine covering of 0.5 to 5 mm and in direction of thickness of 0.2 to 1 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19923088A DE19923088C1 (en) | 1999-05-20 | 1999-05-20 | Woven blanket for drying section of papermaking machine has paired longitudinal filaments pulled out into long and short loops at end sides for smooth surface on paper side when locked together by inserted wire |
| DE19923088 | 1999-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1054097A1 EP1054097A1 (en) | 2000-11-22 |
| EP1054097B1 true EP1054097B1 (en) | 2002-06-05 |
Family
ID=7908579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00108201A Expired - Lifetime EP1054097B1 (en) | 1999-05-20 | 2000-04-14 | Papermaking fabric, in particular a dryer cloth |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6332480B1 (en) |
| EP (1) | EP1054097B1 (en) |
| CA (1) | CA2308883C (en) |
| DE (2) | DE19923088C1 (en) |
| ES (1) | ES2177491T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202018103522U1 (en) | 2018-06-21 | 2018-09-14 | Heimbach Gmbh & Co. Kg | Covering for paper machines or pulp dewatering machines and use of such |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10115007A1 (en) * | 2001-03-26 | 2002-10-10 | Huesker Synthetic Gmbh & Co | Lattice mat has warp end strands that run at regular intervals in warp direction, and pick strands that run in weft direction |
| ATE372404T1 (en) * | 2001-07-05 | 2007-09-15 | Astenjohnson Inc | TECHNICAL FABRIC WITH YARN BANDAGES |
| DE102004048432A1 (en) * | 2004-10-05 | 2006-04-13 | Voith Fabrics Patent Gmbh | Multi-ply fabric with binodal MD yarn |
| US7691238B2 (en) | 2004-12-15 | 2010-04-06 | Albany International Corp. | Spiral fabrics |
| US7575659B2 (en) * | 2004-12-15 | 2009-08-18 | Albany International Corp. | Spiral fabrics |
| DE102005029573A1 (en) * | 2005-06-25 | 2007-01-04 | Voith Patent Gmbh | Papermaking fabric |
| CA2748789A1 (en) * | 2011-08-15 | 2013-02-15 | Derek Chaplin | Embossing fabric including warp yarn sets |
| WO2014016364A1 (en) * | 2012-07-27 | 2014-01-30 | Voith Patent Gmbh | Dryer fabric |
| JP6793546B2 (en) | 2013-11-14 | 2020-12-02 | ジーピーシーピー アイピー ホールディングス エルエルシー | Flexible absorbent sheet with high absorbency and high caliper |
| CN106460335A (en) | 2014-05-09 | 2017-02-22 | 福伊特专利有限公司 | Industrial textile |
| DE102014223972A1 (en) | 2014-11-25 | 2016-05-25 | Voith Patent Gmbh | Double loop seam in stringing |
| USD790865S1 (en) * | 2015-11-24 | 2017-07-04 | Milliken & Company | Fabric |
| USD790228S1 (en) * | 2015-11-24 | 2017-06-27 | Milliken & Company | Fabric |
| DE102016200230A1 (en) * | 2016-01-12 | 2017-08-17 | Voith Patent Gmbh | dryer |
| CN108166082A (en) * | 2018-02-07 | 2018-06-15 | 常州至能土工材料有限公司 | A kind of method using polyester slice production flat filament |
| USD920684S1 (en) * | 2020-01-07 | 2021-06-01 | Gil Mueller | Woven textile |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU527809B2 (en) * | 1978-11-30 | 1983-03-24 | Albany International Corp. | Forming fabric seam and method of producing |
| US4438789A (en) * | 1981-06-04 | 1984-03-27 | Jwi Ltd. | Woven pin seam in fabric and method |
| FR2560242B1 (en) * | 1984-02-29 | 1986-07-04 | Asten Fabriques Feutres Papete | CANVAS, PARTICULARLY FOR PAPER MACHINES, AND PROCESS FOR PREPARING THE SAME |
| ATE114006T1 (en) * | 1990-06-06 | 1994-11-15 | Asten Group | PAPERMAKER FABRIC WITH FLAT MACHINE DIRECTION YARN. |
| US5089324A (en) * | 1990-09-18 | 1992-02-18 | Jwi Ltd. | Press section dewatering fabric |
| SE468052B (en) * | 1991-03-05 | 1992-10-26 | Scandiafelt Ab | SHARP FOR WOVEN |
| US5188884A (en) * | 1991-07-08 | 1993-02-23 | Wangner Systems Corporation | Woven papermaking fabric having low profile seam |
| GB2266731B (en) * | 1992-05-09 | 1996-02-14 | Scapa Group Plc | Paper machine clothing |
| FR2693747B1 (en) * | 1992-07-15 | 1994-08-19 | Feutres Papeteries Tissus Indl | Asymmetric stationery fabric and paper making device using such fabric. |
| DE4302031C1 (en) * | 1993-01-26 | 1993-12-16 | Heimbach Gmbh Thomas Josef | Fourdrinier for paper mfg. machine for large contact surface area - comprises oven plastics filaments with gp. in sub-gps. shrunk for longitudinal filaments side by side, for flexibility |
| US5458161A (en) * | 1993-03-19 | 1995-10-17 | Jwi Ltd. | High loop density pin seam |
| US5799708A (en) * | 1996-10-11 | 1998-09-01 | Albany International Corp. | Papermaker's fabric having paired identical machine-direction yarns weaving as one |
-
1999
- 1999-05-20 DE DE19923088A patent/DE19923088C1/en not_active Expired - Fee Related
-
2000
- 2000-04-14 DE DE50000196T patent/DE50000196D1/en not_active Expired - Lifetime
- 2000-04-14 EP EP00108201A patent/EP1054097B1/en not_active Expired - Lifetime
- 2000-04-14 ES ES00108201T patent/ES2177491T3/en not_active Expired - Lifetime
- 2000-05-18 US US09/572,321 patent/US6332480B1/en not_active Expired - Fee Related
- 2000-05-19 CA CA002308883A patent/CA2308883C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202018103522U1 (en) | 2018-06-21 | 2018-09-14 | Heimbach Gmbh & Co. Kg | Covering for paper machines or pulp dewatering machines and use of such |
| US11230808B2 (en) | 2018-06-21 | 2022-01-25 | Heimbach Gmbh | Clothing for paper machines or pulp dewatering machines and the use of such a clothing |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1054097A1 (en) | 2000-11-22 |
| DE19923088C1 (en) | 2000-10-12 |
| CA2308883C (en) | 2009-01-20 |
| DE50000196D1 (en) | 2002-07-11 |
| CA2308883A1 (en) | 2000-11-20 |
| ES2177491T3 (en) | 2002-12-16 |
| US6332480B1 (en) | 2001-12-25 |
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