EP0528852B1 - Woven fabric made of synthetic monofilaments for use as a dewatering screen in a paper-manufacturing machine - Google Patents
Woven fabric made of synthetic monofilaments for use as a dewatering screen in a paper-manufacturing machine Download PDFInfo
- Publication number
- EP0528852B1 EP0528852B1 EP91908667A EP91908667A EP0528852B1 EP 0528852 B1 EP0528852 B1 EP 0528852B1 EP 91908667 A EP91908667 A EP 91908667A EP 91908667 A EP91908667 A EP 91908667A EP 0528852 B1 EP0528852 B1 EP 0528852B1
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- European Patent Office
- Prior art keywords
- ply
- weft
- threads
- warp threads
- thread
- 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
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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
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Definitions
- the invention relates to a fabric made of plastic monofilaments for use as a drainage screen of a paper machine, based on a family of warp threads and three layers of weft threads, which are connected by these warp threads.
- a three-layer fabric corresponding to the type mentioned at the outset is known from DE-A-2 455 185.
- Each two adjacent layers, which are bound by their own warp threads, are connected by separate binding threads, the binding threads designed as warp threads connecting the two layers to one another in such a way that the finished layer does not have an absolutely flat surface layer, so that through the different levels of screen markings are caused to a greater extent.
- the aim of the present invention is to prevent markings and to be able to use sieves with longer floating weft threads on the running side even in high-speed machines at speeds above 400 m / min. Furthermore, the drainage capacity should be as large as possible. This is achieved in that the weft threads combined in groups are bound both by warp threads which only pass through the upper two layers and by warp threads which pass through all three layers.
- the middle weft layer bound in this way creates a greater distance between the nonwoven surface and the standing support elements of the paper machine, so that the turbulence effects of the long floating lower weft threads no longer strike the nonwoven. It therefore causes a disturbance of this turbulence and dampens its effect on the fleece in a vertical direction due to the narrowing free space of the screen construction. Markings practically no longer appear. Due to the narrowing free space upwards, the drainage ability is not impaired.
- Another object of the invention is to make the arch of the lower weft layer protrude more towards the barrel side so that more volume of the lower weft thread can be ground off before the warp knuckles on the barrel side are ground.
- each weft thread of the lower layer is gripped from below by two, preferably not adjacent warp threads and pulled up against the warp threads lying between the weft thread of the middle layer and itself, so that the arch directed towards the outside of the sieve is maximally formed can.
- four wefts of the upper layer with two wefts of the middle layer and one weft of the lower layer form a group, with two warp threads lying next to one another, one thread from the wefts of the upper layer two above, one below, and two binds above, then passes through the middle layer and passes through the weft of the lower layer of the third group below, then again binds the upper layer after half the repeat length as before, then runs through the middle layer and ties the lower weft of the seventh group, while everyone second warp thread in the repeat increase offset the upper layer binds, but then runs in the same way under the weft threads of the middle layer and in the second half of the repeat.
- the wefts of the middle layer expediently consist of a high molecular weight polyester material with an elongation at break of less than 30% and a viscosity index of the polymer of above 0.90.
- the number of shafts is advantageously 14 or 16.
- Figure 1 shows a section parallel to the chain and Figure 2 parallel to the weft of the fabric.
- Figure 3 shows the weave pattern of a 14-strand fabric.
- two of the weft threads of the upper layer 1, 3, 4, 7, 8, 10 etc. are assigned to one weft thread of the middle layer 2, 6, 9, 13 and so on.
- Four weft threads of the upper layer, two of the middle and one of the lower layer form a weft group.
- the warp threads 2 ', 4', 6 ', 8' etc. are arranged so that they bind the weft threads of the upper layer in the rhythm 2/1/2, then run through the middle layer and tie the weft of the lower layer before they go up again. This course is repeated once more in the bond repeat.
- a second warp thread sheet 1 ', 3', 5 ', 7' and so on is guided in the upper position in the same way as 2 ', 4', 6 'and so on, but then runs only under the weft threads of the middle group, without a thread the lower group.
- the next warp thread of the first group 4 '(after 2') is guided so that it ties the same weft thread 19 in the lower layer.
- each weft thread of the lower layer is tied by two warp threads. As shown in the cross section of the binding (Fig.2), then lie between the weft of the lower layer 5 and that of the middle layer 6, the warp threads 1 ', 3', 6 ', 8' and 13 ', which the bow of the weft 5th Deform to the outside when weaving and even more when heat setting the screen.
- warp threads 1 ', 3', 6 ', 8', 13 'in Fig.2 which form a stronger arc of the lower Guide the weft thread to the barrel side, which also increases the volume of abrasion of the sieve, since a larger volume of the lower weft thread can be sanded before the warp threads are sanded on the barrel side.
- the warp threads 1 ', 3', 6 ', 8', 13 ' which pass through in the space between the middle and the lower weft position are distributed as evenly as possible between the binding points of the lower weft (10', 12 ').
- the material of the middle weft thread is chosen so that it is as little deformed and stiff as possible during the weaving and heat setting process.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
- Paper (AREA)
- Artificial Filaments (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Gewebe aus Kunststoff-Monofilamenten für den Einsatz als Entwässerungssieb einer Papiermaschine, aufbauend auf einer Schar von Kettfäden und drei Lagen von Schußfäden, die durch diese Kettfäden verbunden sind.The invention relates to a fabric made of plastic monofilaments for use as a drainage screen of a paper machine, based on a family of warp threads and three layers of weft threads, which are connected by these warp threads.
Um das Verschleißvolumen der Laufseite der Siebe zu erhöhen, wurden Siebe mit höherer Schaftzahl ausgeführt, wodurch bei weitgehend gleichem Aussehen der papierseitigen Auflagegeometrie eine längere Flottierung der Schußfäden an der Laufseite erreicht wird. Es steht dadurch im Verhältnis ein größerer Teil der Länge der laufseitigen Schußfäden zum Abrieb zur Verfügung.In order to increase the wear volume of the running side of the sieves, sieves with a higher number of shafts were designed, whereby a longer floatation of the weft threads on the running side is achieved with largely the same appearance of the paper-side support geometry. As a result, a larger part of the length of the running weft threads is available for abrasion.
Probleme bei dieser Konstruktion treten dadurch auf, daß die über längere Strecken flottierenden Schußfäden vor allem bei rascher laufenden Maschinen durch Turbulenzwirkung bei der Bewegung des Siebes über stehende Entwässerungselemente wie Foils, Naßsauger oder Sauger eine deutliche Papiermarkierung bewirken.Problems with this construction occur in that the weft threads floating over longer distances, especially in the case of faster running machines, cause a clear paper marking due to turbulence when the screen is moved over standing drainage elements such as foils, wet vacuum cleaners or vacuum cleaners.
Ein dreilagiges Gewebe entsprechend der eingangs genannten Art ist aus der DE-A-2 455 185 bekannt. Jeweils zwei benachbarte Lagen, die durch eigene Kettfäden gebunden sind, sind durch gesonderte Bindefäden verbunden, wobei die als Kettfäden ausgebildeten Bindefäden die beiden Lagen derart miteinander verbinden, daß beim fertigen Sieb die obere Lage nicht absolut plan in ihrer Oberflächenlage ausgeführt ist, so daß durch das unterschiedliche Niveau der Auflage Siebmarkierungen in stärkerem Ausmaß hervorgerufen werden.A three-layer fabric corresponding to the type mentioned at the outset is known from DE-A-2 455 185. Each two adjacent layers, which are bound by their own warp threads, are connected by separate binding threads, the binding threads designed as warp threads connecting the two layers to one another in such a way that the finished layer does not have an absolutely flat surface layer, so that through the different levels of screen markings are caused to a greater extent.
Aus der US-A-4 941 514 ist ein vierlagiges Gewebe bekannt, dessen Schußfäden durch Kettfäden abgebunden sind, die durch alle Lagen durchlaufen. Bei diesem bekannten Gewebe wird in der Gewebemitte die Durchlässigkeit vermindert, weil die Öffnungen zwischen den Gewebeteilen verkleinert werden. Die Entwässerungsfähigkeit des Gewebes wird dadurch verschlechtert, was noch dadurch verstärkt wird, daß Fasern, die zufolge der größeren Öffnungen an der Papierseite des Gewebes in dieses eindringen können, die kleineren Öffnungen in der Gewebemitte noch mehr zusetzen.From US-A-4 941 514 a four-ply fabric is known, the weft threads of which are bound by warp threads which pass through all layers. In this known fabric, the permeability is reduced in the middle of the fabric because the openings between the fabric parts are reduced. The drainage capacity of the fabric is deteriorated, which is further exacerbated by the fact that fibers which can penetrate into the fabric due to the larger openings on the paper side clog the smaller openings in the middle of the fabric even more.
Ziel der vorliegenden Erfindung ist es, Markierungen zu verhindern und Siebe mit länger flottierenden Schußfäden auf der Laufseite auch bei schnellaufenden Maschinen mit Geschwindigkeiten über 400m/min einsetzen zu können. Weiters soll die Entwässerungsfähigkeit möglichst groß sein. Erreicht wird dies dadurch, daß die in Gruppen zusammengefaßten Schußfäden sowohl durch Kettfäden, die nur die oberen zwei Lagen durchlaufen, als auch durch Kettfäden, die alle drei Lagen durchlaufen, gebunden sind.The aim of the present invention is to prevent markings and to be able to use sieves with longer floating weft threads on the running side even in high-speed machines at speeds above 400 m / min. Furthermore, the drainage capacity should be as large as possible. This is achieved in that the weft threads combined in groups are bound both by warp threads which only pass through the upper two layers and by warp threads which pass through all three layers.
Die derart gebundene mittlere Schußlage erzeugt einen größeren Abstand zwischen der Vliesoberfläche und den stehenden Tragelementen der Papiermaschine, sodaß die Turbulenzwirkungen der lange flottierenden unteren Schußfäden nicht mehr auf das Vlies durchschlagen. Sie bewirkt demnach eine Störung dieser Turbulenzen und dämpft sie in ihrer Wirkung auf das Vlies durch den sich verengenden freien Raum der Siebkonstruktion in vertikaler Richtung nach oben. Markierungen treten praktisch nicht mehr auf. Durch den sich verengenden freien Raum nach oben wird auch die Entwässerungsfähigkeit nicht beeinträchtigt.The middle weft layer bound in this way creates a greater distance between the nonwoven surface and the standing support elements of the paper machine, so that the turbulence effects of the long floating lower weft threads no longer strike the nonwoven. It therefore causes a disturbance of this turbulence and dampens its effect on the fleece in a vertical direction due to the narrowing free space of the screen construction. Markings practically no longer appear. Due to the narrowing free space upwards, the drainage ability is not impaired.
Ein weiteres Ziel der Erfindung ist es, den Bogen der unteren Schußlage zur Laufseite hin stärker hervortreten zu lassen, damit mehr Volumen des unteren Schußfadens abgeschliffen werden kann, bevor die Kettknöchel an der Laufseite zum Anschliff kommen. Bei einem erfindungsgemäßen Gewebe wird hiezu jeder Schußfaden der unteren Lage von zwei, vorzugsweise nicht nebeneinander liegenden Kettfäden von unten erfaßt und gegen die zwischen dem Schußfaden der mittleren Lage und ihm selbst liegenden Kettfäden als Auflage hochgezogen, sodaß der zur Siebaußenseite hin gerichtete Bogen maximal ausgebildet werden kann.Another object of the invention is to make the arch of the lower weft layer protrude more towards the barrel side so that more volume of the lower weft thread can be ground off before the warp knuckles on the barrel side are ground. In the case of a fabric according to the invention, each weft thread of the lower layer is gripped from below by two, preferably not adjacent warp threads and pulled up against the warp threads lying between the weft thread of the middle layer and itself, so that the arch directed towards the outside of the sieve is maximally formed can.
Bei einer bevorzugten Ausführungsform der Erfindung bilden jeweils vier Schußfäden der oberen Lage mit zwei Schußfäden der mittleren Lage und einem Schußfaden der unteren Lage eine Gruppe, wobei von zwei nebeneinander liegenden Kettfäden ein Faden von den Schußfäden der oberen Lage zwei oberhalb, einen unterhalb, und zwei oberhalb abbindet, dann die mittlere Lage passiert und den Schußfaden der unteren Lage der dritten Gruppe unten passiert, sodann wieder nach der halben Rapportlänge die obere Lage wie zuvor abbindet, dann durch die mittlere Lage läuft und den unteren Schußfaden der siebenten Gruppe abbindet, während jeder zweite Kettfaden im Rapportanstieg versetzt die obere Lage bindet, dann aber unter den Schußfäden der mittleren Lage und in der zweiten Rapporthälfte gleichartig verläuft.In a preferred embodiment of the invention, four wefts of the upper layer with two wefts of the middle layer and one weft of the lower layer form a group, with two warp threads lying next to one another, one thread from the wefts of the upper layer two above, one below, and two binds above, then passes through the middle layer and passes through the weft of the lower layer of the third group below, then again binds the upper layer after half the repeat length as before, then runs through the middle layer and ties the lower weft of the seventh group, while everyone second warp thread in the repeat increase offset the upper layer binds, but then runs in the same way under the weft threads of the middle layer and in the second half of the repeat.
Das Maß der Verengung des freien Raumes zwischen den Fäden der einzelnen Schußlagen kann durch den Wert A = (10 - Schußfadenzahl pro cm x Schußdurchmesser in mm) dargestellt werden und ergibt die freie Fläche zwischen den Schußfäden auf 10 mm Sieblänge gesehen. Dieser Wert soll in der oberen Lage zwischen 3,2 und 4,5, in der mittleren Lage zwischen 5,1 und 5,2 und in der unteren Lage zwischen 6,2 und 7 betragen.The degree of the narrowing of the free space between the threads of the individual weft layers can be represented by the value A = (10 - weft thread number per cm x weft diameter in mm) and gives the free area between the weft threads when viewed at 10 mm sieve length. This value should be between 3.2 and 4.5 in the upper layer, between 5.1 and 5.2 in the middle layer and between 6.2 and 7 in the lower layer.
Zweckmäßig bestehen die Schußfäden der mittleren Lage aus einem hochmolekularen Polyestermaterial mit einer Bruchdehnung kleiner als 30% und einem Viskositätsindex des Polymers über 0.90.The wefts of the middle layer expediently consist of a high molecular weight polyester material with an elongation at break of less than 30% and a viscosity index of the polymer of above 0.90.
Die Schaftzahl beträgt vorteilhaft 14 oder 16.The number of shafts is advantageously 14 or 16.
Nachstehend ist die Erfindung an Hand eines in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben, ohne auf dieses beschränkt zu sein. Dabei zeigt Fig.1 einen Schnitt parallel zur Kette und Fig.2 parallel zum Schuß des Gewebes. Die Fig.3 gibt das Bindungsmuster eines 14-schäftigen Gewebes wieder.The invention is described in more detail below with reference to an exemplary embodiment shown in the drawing, without being limited to this. Figure 1 shows a section parallel to the chain and Figure 2 parallel to the weft of the fabric. 3 shows the weave pattern of a 14-strand fabric.
Gemäß Fig.1 sind von den Schußfäden der oberen Lage 1, 3, 4, 7, 8, 10 usf. jeweils zwei einem Schußfaden der mittleren Lage 2, 6, 9, 13 usf. zugeordnet. Auf je zwei Schußfäden der mittleren Lage kommt dann ein Schußfaden der unteren Lage 5, 12, 19 usf. Vier Schußfäden der oberen Lage, zwei der mittleren und einer der unteren Lage bilden eine Schußgruppe.According to FIG. 1, two of the weft threads of the
Die Kettfäden 2′, 4′, 6′, 8′ usf. sind so angeordnet, daß sie die Schußfäden der oberen Lage im Rhythmus 2/1/2 abbinden, dann durch die mittlere Lage verlaufen und den Schuß der unteren Lage abbinden, bevor sie wieder nach oben gehen. Dieser Verlauf wiederholt sich im Bindungsrapport noch einmal. Eine zweite Kettfadenschar 1′, 3′, 5′, 7′ usf. wird in der oberen Lage gleich wie 2′, 4′, 6′ usf. geführt, sie läuft dann allerdings nur unter den Schußfäden der mittleren Gruppe, ohne einen Faden der unteren Gruppe abzubinden. Der nächste Kettfaden der ersten Gruppe 4′ (nach 2′) wird so geführt, daß er in der unteren Lage denselben Schußfaden 19 abbindet. Als zweiten Schußfaden in der unteren Lage bindet dieser Kettfaden allerdings dann den Schußfaden 40 der unteren Lage ab. Auf diese Weise ergibt sich, daß jeder Schußfaden der unteren Lage von zwei Kettfäden abgebunden wird. Wie im Querschnitt der Bindung (Fig.2) dargestellt, liegen dann zwischen dem Schußfaden der unteren Lage 5 und dem der mittleren Lage 6 die Kettfäden 1′, 3′, 6′, 8′ und 13′, die den Bogen des Schußfadens 5 zur Laufseite beim Weben und noch mehr beim Thermofixieren des Siebes nach außen verformen.The warp threads 2 ', 4', 6 ', 8' etc. are arranged so that they bind the weft threads of the upper layer in the
Es werden demgemäß durch diejenigen Kettfäden, die zwischen der mittleren und unteren Schußlage verlaufen (1′, 3′, 6′, 8′, 13′ in Fig.2) für den unteren Schuß Auflagepunkte gebildet, die zur Bildung eines stärkeren Bogens des unteren Schußfadens zur Laufseite hin führen, wodurch auch das Abriebvolumen des Siebes erhöht wird, da ein größeres Volumen des unteren Schußfadens angeschliffen werden kann, bevor die Kettfäden laufseitig zum Anschliff kommen. Die im Raum zwischen der mittleren und der unteren Schußlage durchlaufenden Kettfäden 1′, 3′, 6′, 8′, 13′ sind möglichst gleichmäßig zwischen den Abbindestellen des unteren Schusses (10′, 12′) verteilt. Weiters wird das Material des mittleren Schußfadens so gewählt, daß sich dieser während des Web- und Thermofixiervorganges möglichst wenig verformt und steif verhält.There are accordingly by those warp threads that run between the middle and lower weft layer (1 ', 3', 6 ', 8', 13 'in Fig.2) for the lower weft support points, which form a stronger arc of the lower Guide the weft thread to the barrel side, which also increases the volume of abrasion of the sieve, since a larger volume of the lower weft thread can be sanded before the warp threads are sanded on the barrel side. The warp threads 1 ', 3', 6 ', 8', 13 'which pass through in the space between the middle and the lower weft position are distributed as evenly as possible between the binding points of the lower weft (10', 12 '). Furthermore, the material of the middle weft thread is chosen so that it is as little deformed and stiff as possible during the weaving and heat setting process.
In der Tabelle findet sich eine Zusammenstellung der Zuordnung von Kettfadenzahlen und -durchmessern zu den Fadenzahlen und Durchmessern der drei Schußlagen, die von der Laufseite zur Papierseite hin eine stetige Verengung des freien Raumes zwischen den Schußfäden ergibt, wodurch die Dämpfungswirkung der einzelnen Schußlagen hervorgerufen wird.
Claims (6)
- Synthetic monofilament textile, to be used as dehydration screen for a paper machine, based on one sheet of warp threads and three plies of weft threads linked by these warp threads, characterized in that the weft threads gathered in groups (e.g. 15,17,18,21; 16,20;19) are tied both by warp threads (1′, 3′) running only through the two upper plies and by warp threads (2′, 4′) running through all three plies.
- Textile according to Claim 1, characterized in that each weft thread of the lower ply (e.g. 5) is lifted by two warp threads (10′, 12′), preferably not situated side by side, and pulled upward towards the warp threads (1′, 3′, 6′, 8′, 13′) situated between the middle-ply weft thread (6) and itself, thus forming a support surface, so that the curve facing the outside of the screen is developed to a maximum.
- Textile according to Claims 1 and 2, characterized in that a number of four weft threads of the upper ply (e.g. 1, 3, 4, 7) forms a group together with two weft threads of the middle ply (e.g. 2, 6) and one weft thread of the lower ply (5); in this, one (2′) of two warp threads (1′, 2′) situated side by side binds two of the upper-ply weft threads (3 and 4) above, one (7) below and two (8, 10) above, then passes through the middle ply and subsequently passes the weft thread of the lower ply (19) of the third group below; then it binds the upper ply (28, 29, 31, 32, 35) again after half of the repeat, passes the middle ply and binds the lower weft thread of the seventh group (47), while every other warp thread (e.g. 1′) binds the upper ply (17, 18, 21, 22, 24) during the weft thread repeat but then runs below the weft threads of the middle ply (30, 34) and during the second half of the repeat in the same way.
- Textile according to one of Claims 1 to 3, characterized in that the value A = 10 - density of textile per cm x diameter of pick in mm is between 3.2 and 4.5 in the upper ply, between 5.1 and 5.2 in the middle ply and between 6.2 and 7 in the lower ply.
- Textile according to one of Claims 1 to 4, characterized in that the middle-ply weft threads are made of polyester of high molecular weight with an elongation at rupture of less than 30% and a polymer viscosity index exceeding 0.90.
- Textile according to one of Claims 1 to 5, characterized in that the heald shaft number is 14 or 16.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1037/90A AT393521B (en) | 1990-05-08 | 1990-05-08 | PLASTIC MONOFILAMENT FABRICS FOR USE AS A DRAINAGE SCREEN OF A PAPER MACHINE |
AT1037/90 | 1990-05-08 | ||
PCT/AT1991/000060 WO1991017292A1 (en) | 1990-05-08 | 1991-04-23 | Woven fabric made of synthetic monofilaments for use as a dewatering screen in a paper-manufacturing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0528852A1 EP0528852A1 (en) | 1993-03-03 |
EP0528852B1 true EP0528852B1 (en) | 1994-07-13 |
Family
ID=3505240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91908667A Expired - Lifetime EP0528852B1 (en) | 1990-05-08 | 1991-04-23 | Woven fabric made of synthetic monofilaments for use as a dewatering screen in a paper-manufacturing machine |
Country Status (7)
Country | Link |
---|---|
US (1) | US5358014A (en) |
EP (1) | EP0528852B1 (en) |
JP (1) | JPH05506894A (en) |
AT (2) | AT393521B (en) |
CA (1) | CA2080811A1 (en) |
DE (1) | DE59102193D1 (en) |
WO (1) | WO1991017292A1 (en) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5713396A (en) * | 1990-06-06 | 1998-02-03 | Asten, Inc. | Papermakers fabric with stacked machine and cross machine direction yarns |
AT400854B (en) | 1994-07-01 | 1996-04-25 | Hutter & Schrantz Papiermaschi | FABRICS FOR USE AS PAPER MACHINE COVERING |
US5983953A (en) * | 1994-09-16 | 1999-11-16 | Weavexx Corporation | Paper forming progess |
US5709250A (en) * | 1994-09-16 | 1998-01-20 | Weavexx Corporation | Papermakers' forming fabric having additional fiber support yarns |
US5518042A (en) * | 1994-09-16 | 1996-05-21 | Huyck Licensco, Inc. | Papermaker's forming fabric with additional cross machine direction locator and fiber supporting yarns |
US5503196A (en) * | 1994-12-07 | 1996-04-02 | Albany International Corp. | Papermakers fabric having a system of machine-direction yarns residing interior of the fabric surfaces |
AT403486B (en) * | 1995-12-19 | 1998-02-25 | Hutter & Schrantz Papiermaschi | Engineering fabric for use in papermaking machines |
US5937914A (en) * | 1997-02-20 | 1999-08-17 | Weavexx Corporation | Papermaker's fabric with auxiliary yarns |
US5967195A (en) * | 1997-08-01 | 1999-10-19 | Weavexx Corporation | Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface |
US6158478A (en) * | 1998-04-14 | 2000-12-12 | Astenjohnson, Inc. | Wear resistant design for high temperature papermachine applications |
US6112774A (en) * | 1998-06-02 | 2000-09-05 | Weavexx Corporation | Double layer papermaker's forming fabric with reduced twinning. |
WO2000004225A1 (en) | 1998-07-16 | 2000-01-27 | Asten, Inc. | Soft-faced dryer fabric |
DE19859582A1 (en) * | 1998-12-22 | 2000-06-29 | Voith Fabrics Heidenheim Gmbh | Three or multi-layer paper machine screen in the form of a composite fabric |
US6123116A (en) * | 1999-10-21 | 2000-09-26 | Weavexx Corporation | Low caliper mechanically stable multi-layer papermaker's fabrics with paired machine side cross machine direction yarns |
US6179013B1 (en) | 1999-10-21 | 2001-01-30 | Weavexx Corporation | Low caliper multi-layer forming fabrics with machine side cross machine direction yarns having a flattened cross section |
US6585006B1 (en) | 2000-02-10 | 2003-07-01 | Weavexx Corporation | Papermaker's forming fabric with companion yarns |
US6244306B1 (en) | 2000-05-26 | 2001-06-12 | Weavexx Corporation | Papermaker's forming fabric |
US6253796B1 (en) | 2000-07-28 | 2001-07-03 | Weavexx Corporation | Papermaker's forming fabric |
US6745797B2 (en) | 2001-06-21 | 2004-06-08 | Weavexx Corporation | Papermaker's forming fabric |
US20040099328A1 (en) * | 2002-11-21 | 2004-05-27 | Rougvie David S. | Forming fabric with twinned top wefts and an extra layer of middle wefts |
US7008512B2 (en) * | 2002-11-21 | 2006-03-07 | Albany International Corp. | Fabric with three vertically stacked wefts with twinned forming wefts |
US6860969B2 (en) | 2003-01-30 | 2005-03-01 | Weavexx Corporation | Papermaker's forming fabric |
US6837277B2 (en) | 2003-01-30 | 2005-01-04 | Weavexx Corporation | Papermaker's forming fabric |
US7059357B2 (en) | 2003-03-19 | 2006-06-13 | Weavexx Corporation | Warp-stitched multilayer papermaker's fabrics |
US6896009B2 (en) * | 2003-03-19 | 2005-05-24 | Weavexx Corporation | Machine direction yarn stitched triple layer papermaker's forming fabrics |
GB0317248D0 (en) * | 2003-07-24 | 2003-08-27 | Voith Fabrics Gmbh & Co Kg | Fabric |
US7243687B2 (en) * | 2004-06-07 | 2007-07-17 | Weavexx Corporation | Papermaker's forming fabric with twice as many bottom MD yarns as top MD yarns |
US7195040B2 (en) | 2005-02-18 | 2007-03-27 | Weavexx Corporation | Papermaker's forming fabric with machine direction stitching yarns that form machine side knuckles |
US7484538B2 (en) | 2005-09-22 | 2009-02-03 | Weavexx Corporation | Papermaker's triple layer forming fabric with non-uniform top CMD floats |
US7219701B2 (en) * | 2005-09-27 | 2007-05-22 | Weavexx Corporation | Papermaker's forming fabric with machine direction stitching yarns that form machine side knuckles |
DE102005060301A1 (en) * | 2005-12-16 | 2007-06-21 | Voith Patent Gmbh | Paper machine clothing |
DE102005060299A1 (en) * | 2005-12-16 | 2007-06-21 | Voith Patent Gmbh | papermaker |
US7275566B2 (en) * | 2006-02-27 | 2007-10-02 | Weavexx Corporation | Warped stitched papermaker's forming fabric with fewer effective top MD yarns than bottom MD yarns |
US8640862B2 (en) * | 2006-04-10 | 2014-02-04 | Albany International Corp. | Seam-on laminated belt |
US7580229B2 (en) | 2006-04-27 | 2009-08-25 | Hitachi Global Storage Technologies Netherlands B.V. | Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with antiparallel-free layer structure and low current-induced noise |
US7487805B2 (en) | 2007-01-31 | 2009-02-10 | Weavexx Corporation | Papermaker's forming fabric with cross-direction yarn stitching and ratio of top machined direction yarns to bottom machine direction yarns of less than 1 |
US7624766B2 (en) * | 2007-03-16 | 2009-12-01 | Weavexx Corporation | Warped stitched papermaker's forming fabric |
US20090183795A1 (en) | 2008-01-23 | 2009-07-23 | Kevin John Ward | Multi-Layer Papermaker's Forming Fabric With Long Machine Side MD Floats |
CA2622653A1 (en) * | 2008-02-22 | 2009-08-22 | Roger Danby | Triple weft layer double wrap industrial filtration fabric |
US7766053B2 (en) | 2008-10-31 | 2010-08-03 | Weavexx Corporation | Multi-layer papermaker's forming fabric with alternating paired and single top CMD yarns |
US8251103B2 (en) | 2009-11-04 | 2012-08-28 | Weavexx Corporation | Papermaker's forming fabric with engineered drainage channels |
DE102013214075A1 (en) | 2013-07-18 | 2015-01-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Fabric with polymer layer |
CN205205569U (en) * | 2015-12-09 | 2016-05-04 | 江苏金呢工程织物股份有限公司 | High -speed paper machine high abrasion papermaking forming wire |
DE102016015336A1 (en) * | 2016-12-21 | 2018-06-21 | Giesecke+Devrient Currency Technology Gmbh | Drainage screen for papermaking |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2854032A (en) * | 1953-08-20 | 1958-09-30 | William E Hooper And Sons Comp | Dryer felt |
US3885603A (en) * | 1973-11-21 | 1975-05-27 | Creech Evans S | Papermaking fabric |
US4327779A (en) * | 1978-08-09 | 1982-05-04 | Scapa Dryers, Inc. | Dryer felt having a soft, bulky surface |
US4438788A (en) * | 1980-09-30 | 1984-03-27 | Scapa Inc. | Papermakers belt formed from warp yarns of non-circular cross section |
US4356225A (en) * | 1981-05-18 | 1982-10-26 | Ascoe Felts, Inc. | Papermarkers interwoven wet press felt |
US4379735A (en) * | 1981-08-06 | 1983-04-12 | Jwi Ltd. | Three-layer forming fabric |
SE441016B (en) * | 1982-04-26 | 1985-09-02 | Nordiskafilt Ab | PREPARATION WIRES FOR PAPER, CELLULOSA OR SIMILAR MACHINES |
DE3301810C2 (en) * | 1983-01-20 | 1986-01-09 | Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen | Composite fabric as a covering for the sheet forming part of a paper machine |
DE3305713C1 (en) * | 1983-02-18 | 1984-04-19 | Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen | Composite fabric as covering for the sheet forming part of a paper machine |
SE435739B (en) * | 1983-02-23 | 1984-10-15 | Nordiskafilt Ab | DOUBLE TEXTILE TYPE FORMATION WIRES |
US4537816A (en) * | 1983-04-13 | 1985-08-27 | Ascoe Felts, Inc. | Papermakers superimposed felt with voids formed by removing yarns |
US4709732A (en) * | 1986-05-13 | 1987-12-01 | Huyck Corporation | Fourteen harness dual layer weave |
AT386026B (en) * | 1986-05-15 | 1988-06-27 | Hutter & Schrantz Ag | Multilayer fabric made of plastic monofilaments |
FI78329B (en) * | 1987-02-10 | 1989-03-31 | Tamfelt Oy Ab | PAPPERSMASKINDUK. |
US5199467A (en) * | 1990-06-06 | 1993-04-06 | Asten Group, Inc. | Papermakers fabric with stacked machine direction yarns |
-
1990
- 1990-05-08 AT AT1037/90A patent/AT393521B/en not_active IP Right Cessation
-
1991
- 1991-04-23 CA CA002080811A patent/CA2080811A1/en not_active Abandoned
- 1991-04-23 DE DE59102193T patent/DE59102193D1/en not_active Expired - Fee Related
- 1991-04-23 AT AT91908667T patent/ATE108495T1/en not_active IP Right Cessation
- 1991-04-23 EP EP91908667A patent/EP0528852B1/en not_active Expired - Lifetime
- 1991-04-23 US US07/941,426 patent/US5358014A/en not_active Expired - Fee Related
- 1991-04-23 WO PCT/AT1991/000060 patent/WO1991017292A1/en active IP Right Grant
- 1991-04-23 JP JP91508078A patent/JPH05506894A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0528852A1 (en) | 1993-03-03 |
ATE108495T1 (en) | 1994-07-15 |
DE59102193D1 (en) | 1994-08-18 |
CA2080811A1 (en) | 1991-11-09 |
AT393521B (en) | 1991-11-11 |
US5358014A (en) | 1994-10-25 |
ATA103790A (en) | 1991-04-15 |
JPH05506894A (en) | 1993-10-07 |
WO1991017292A1 (en) | 1991-11-14 |
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