EP2236666A1 - Seamable press felt with flat manufactured non-woven base structure - Google Patents
Seamable press felt with flat manufactured non-woven base structure Download PDFInfo
- Publication number
- EP2236666A1 EP2236666A1 EP20100157263 EP10157263A EP2236666A1 EP 2236666 A1 EP2236666 A1 EP 2236666A1 EP 20100157263 EP20100157263 EP 20100157263 EP 10157263 A EP10157263 A EP 10157263A EP 2236666 A1 EP2236666 A1 EP 2236666A1
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- EP
- European Patent Office
- Prior art keywords
- yarns
- support structure
- transverse
- press felt
- longitudinal
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- 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.)
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/083—Multi-layer felts
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/10—Seams thereof
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- 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.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/682—Needled nonwoven fabric
Definitions
- the invention relates to a seamable press felt for a machine for producing and / or treating a fibrous web, such as a paper, board or tissue web, and a method for the production thereof.
- Press felts usually consist of a tensile load-bearing support structure, which also provides substantially the dimensional stability of the press felt.
- the carrier structures of today's seamable press felts are often woven round, with the machine direction yarns being woven back to form seam loops.
- the disadvantage of woven structures is that the round weaving process is time-consuming and costly.
- the warp yarns constitute the cross-machine direction yarns and the weft yarns the machine direction yarns, the length of such carrier structures is limited to the width of the weaving machines used in weaving.
- the object is achieved by a press felt for a machine for producing and / or treating a fibrous web, in particular paper, board or tissue web.
- the press felt has a carrier structure substantially affecting the dimensional stability of the felt.
- the support structure comprises a flat fabric produced, which is formed from longitudinal yarns and these crossing transverse yarns and sewing threads, which connect the longitudinal and the transverse yarns at the intersection points.
- the textile fabric of the press felt according to the invention is longer than the length of the support structure and deposited in such a manner on itself, that the support structure by several in each case over the entire length of the support structure extending layers of the textile fabric is formed.
- the layers arranged on each other are at least partially connected to each other.
- cover edges are formed which extend transversely to the longitudinal direction of the support structure and which define a one and another transverse end of the support structure.
- the longitudinal yarns are curved to form seam loops at the two transverse ends of the support structure.
- the support structure is seamable in a paper machine by guiding the two transverse ends of the support structure to make the support structure endless, and engaging the seam loops to form a connecting channel extending transversely of the support structure.
- a pintle wire is passed through the connection channel of the support structure.
- the inventive solution provides a press felt having a non-woven support structure having both longitudinal and transverse yarns.
- the longitudinal yarns represent the elements that absorb at least the essential part of the tensile load acting on the press felt.
- the transverse yarns determine at least the essential part of the transverse stability of the press felt. Since in the solution according to the invention the longitudinal yarns also provide the seam loops, those in the EP0261488 proposed wire helices in the seam area omitted. Since the press felt according to the invention has a support structure which comprises a non-woven textile fabric or even formed from this, it can be produced easily and quickly and thus inexpensively.
- the solution according to the invention thus combines the advantages of the WO89 / 12717 and EP0261488 known solutions.
- the self-deposited portions of the fabric may form two or more entire layers.
- the support structure is two-ply, i. is formed by two in each case over the length of the support structure extending layers of the fabric, so for example, the two end portions of the flat fabric produced fabric may be stored on the center portion of the fabric, that they complement the center portion completely covering position.
- the textile surface is about twice as long as the support structure and the press felt.
- the support structure may also comprise three layers of the textile fabric or be formed by them.
- the textile fabric can be divided into three sections of equal length, for example two end sections and one center section laid on top of each other, for example by covering one end section completely on one side of the center section and the other end section on the other side opposite the one side Side of the middle section completely covered.
- the successive portions of the textile fabric are connected to each other by sewing and / or needling.
- the sections may, for example, be interconnected by a needled nonwoven structure of staple fibers.
- a preferred embodiment of the invention provides that one or more transverse yarns is respectively removed from the textile fabric in the region of the cover edges.
- the textile fabric is preferably a warp knit structure or a leno fabric.
- the support structure is formed only by the one warp knit structure or the leno fabric.
- the longitudinal yarns in the support structure preferably extend straight down to the area of the seam loops. Furthermore, the transverse yarns preferably extend straight in the carrier structure.
- the term "straight extension in the support structure" is to be understood in the present case that the yarns for providing the support structure do not extend in a curved manner, as is the case, for example, with a woven fabric.
- the o.g. Definition is not intended to exclude that the yarns are curved when the support structure is curved, as is the case, for example, in the case of the support structure made endless.
- the yarns extend mutually curved.
- the advantage in the straight course of the longitudinal and / or transverse yarns is on the one hand that less yarn material is needed for the production of the textile fabric.
- such structures are more dimensionally stable than a woven fabric, particularly when used as a press felt, because a structure constructed by straight yarns exhibits less distortion under force in the press nip than a fabric with curved yarns.
- the longitudinal yarns are monofilament yarns, since in this case the pintle wire can be guided much easier through the connecting channel than if the longitudinal yarns are formed by multifilament yarns.
- the monofilament yarns forming the longitudinal yarns are formed from or contain a polyamide and / or a polyamide copolymer.
- the transverse yarns are multifilament yarns and / or staple fiber yarns.
- the staple fibers of the nonwoven structure can be significantly better anchored than in monofilament yarns.
- the multifilament yarns are formed from a plurality of monofilament yarns twisted together.
- 4-ply threads, 6-ply threads, 9-ply threads, or 10-ply threads, to name but a few possible ply threads, are conceivable here.
- the transverse yarns are spaced from each other, wherein the distance between adjacent transverse yarns corresponds at least to the diameter of the transverse yarns.
- the layers of the textile fabric are preferably laid on each other such that transverse yarns of the one layer are arranged between adjacent transverse yarns of the other layer and vice versa. As a result, the thickness of two successive layers can be reduced. Furthermore, the successive layers are fixed to each other.
- the longitudinal yarns are spaced apart from each other and the distance between adjacent longitudinal yarns corresponds at least to the diameter of the longitudinal yarns.
- the layers of the textile fabric are preferably laid on each other such that longitudinal yarns of the one layer are arranged between adjacent longitudinal yarns of the other layer and vice versa.
- the diameters of the transverse yarns are preferably adapted to the diameter of the plug-in wire.
- a preferred embodiment of the invention therefore provides that the diameter of the transverse yarns substantially corresponds to the diameter of the plug-in wire.
- the longitudinal yarns extend in the intended machine direction and the transverse yarns in the intended cross-machine direction of the press felt.
- the method according to the invention may comprise the further step of removing one or more transverse yarns from the textile fabric in the region of the cover edges.
- the method according to the invention may comprise the step of connecting the layers of the textile fabric forming the carrier structure to one another.
- the layers it is possible for the layers to be connected to one another only along lines, as may be the case when the layers are stitched together, for example. It is also conceivable to connect the layers with one another in a planar manner, as may be the case, for example, when the layers are glued together.
- the flat fabric has two transverse edges which limit the length of the fabric and two longitudinal edges which limit the width of the fabric. Furthermore, the textile fabric has an upper side and a lower side opposite thereto.
- a tubular structure is produced from the textile fabric before step b).
- the fabric in particular, for the fabric to be joined to itself in the region of its two transverse edges to form the tubular structure, by an end section of the fabric adjoining the one transverse edge projecting onto another end section of the textile fabric adjacent to the other transverse edge is filed.
- the depositing takes place such that either the top of the one end portion is placed on top of the other end portion or the bottom of the one end portion is placed on the underside of the other end portion and the successive end portions are at least partially connected to each other.
- the compound can in this case, for example.
- a method take place, in which the material of the sheet, ie, the longitudinal threads and / or transverse threads and / or sewing threads, are at least partially connected by fusing in the region of the two end portions of the textile fabric.
- step b) is carried out.
- step c the seam loops are fixed.
- the support structure formed from a plurality of layers of the fabric is guided around two parallel rollers, by means of which the support structure is tensioned in its longitudinal extent, whereby the seam loops are fixed in their course.
- the fixation can be done in addition to the tensile stress under the influence of temperature.
- the textile fabric forming the multilayer structure can also be guided through a press nip.
- FIG. 1 shows an embodiment of a method according to the invention for producing a press felt according to the invention with a support structure 11, wherein the production of the support structure 11 comprises the steps described below.
- a textile fabric 1 is provided.
- the textile fabric 1 is formed from longitudinal yarns 2 and transverse yarns 3a, 3b, 3c, which intersect the longitudinal yarns 2.
- the longitudinal yarns 2 are connected to the transverse yarns 3a, 3b, 3c at the intersection points by means of sewing threads 4.
- the textile fabric 1 forms a single-layer warp knit structure.
- the longitudinal yarns 2 are formed of a polyamide and monofilament yarns, whereas the transverse yarns 3a, 3b, 3c are formed as multifilament yarns.
- the warp knit structure 1 is longer than the length of the support structure 11 to be produced. In the present case, the warp knit structure 1 is about twice as long as the support structure 11 to be produced.
- the warp knit structure 1 has two end sections 5b, 5c and a center section 5a, the two end sections 5b, 5c together have approximately the length of the central portion 5a (see FIG. 1a ).
- the transverse yarns of the one end portion 5b are designated by the reference numeral 3b and those of the other end portion 5c by the reference numeral 3c.
- the transverse yarns 3a, 3b and 3c are spaced from each other, wherein the distance between adjacent transverse yarns 3a, 3b, 3c at least equal to the diameter of the transverse yarns 3a, 3b, 3c itself.
- Middle section 5a filed that the support structure 11 is formed by a plurality of each extending over the entire length of the support structure 11 layers of the textile fabric 1.
- the two end sections 5b, 5c together form a position of the support structure 11, as the center section 5a forms a position of the support structure 11.
- envelope edges 6, 7 are formed, which extend transversely to the longitudinal direction of the support structure 11 and define a one and another transverse end of the support structure 11.
- transverse yarns 3b, 3c can now be removed from the textile fabric 1 in the area of the cover edges 6, 7 prior to laying one on another or thereafter.
- the longitudinal yarns 2 running in the region of the cover edges 6, 7 form the two transverse ends of the two yarns Carrier structure 11 each seam loops 8, 9, through which for endless making the support structure 11, a pintle 10 is feasible (see FIG. 1 d) ,
- the successive layers of the textile fabric 1 are joined together. This can be done, for example, by sewing on the layers and / or during needling of a nonwoven structure made from staple fibers.
- FIG. 2 shows a further embodiment of a method according to the invention for producing a press felt according to the invention with a support structure 11.
- FIG. 2 described method adds from the FIG. 1 known methods, for example.
- FIG. 2b added to the manufacturing step described in which from the textile fabric 1, before this in whole layers on itself is stored, from the textile fabric a tubular structure is made.
- the textile fabric 1 has two transverse edges 18, 19 which limit the length of the textile fabric as well as an upper side 20 and a lower side 21 opposite thereto.
- the textile fabric 1 is connected to itself in the region of its two transverse edges 18, 19.
- one adjacent to the one transverse edge 18 one end portion 26 of the textile fabric 1 is deposited on a bordering to the other transverse edge 19 other end portion 27 of the textile fabric.
- the depositing takes place here in such a way that the upper side 20 of the one end section 26 is deposited on the upper side 20 of the other end section 27.
- the successive end portions 26, 27 are connected together in a connection region 24, for example by a hot wire device 23.
- the connection region 24 extends in the illustration of FIG. 2 right of the designated by the reference numeral 22 separation point.
- Parts of the end sections 26, 27 lying to the left of the dividing line 22 are separated from the textile fabric 1 when joined to the hot-wire device.
- connection region 24 can subsequently be smoothed, for example, by means of ultrasound action.
- the deposition of the tubular structure 25 is shown on itself.
- a plurality of, in the present case two, layers 28, 29 of the textile fabric 1 extending over the entire length of the support structure 11 are formed.
- the cover edges 6, 7 are formed, which is extend transversely to the longitudinal direction of the support structure 11 and define a one and another transverse end of the support structure 11.
- transverse yarns 3 can be removed from the textile fabric 1 in the region of the cover edges 6, 7 prior to laying one on another or thereafter.
- the longitudinal yarns 2 running in the region of the cover edges 6, 7 form seam loops 8, 9 at the two transverse ends of the support structure 11.
- the successive layers 28, 29 of the tubular structure 25 can be connected to each other. This can be done, for example, by sewing the layers 28, 29.
- the self-deposited tubular structure 25 is made endless for the further production of the support structure 11 by bringing together the seam loops 8, 9 of the two transverse ends to form a connection channel through which a pintle 10 is guided (see FIG. 2e ).
- the self-contained tubular structure 25 is endless, it is guided around two mutually spaced and parallel aligned rollers 30, 31 whose distance from each other in direction L is variable, in particular enlargeable, so that the support structure 11 in its longitudinal extent, ie in Longitudinal direction of the longitudinal yarns, a tensile stress can be generated.
- the seam loops 8, 9 can be fixed in their shape.
- at least one of the rollers 30, 31 is heated, so that the fixing of the seam loops 8, 9 takes place under the action of tensile stress and temperature.
- the carrier structure 11 is fed to a needling device 32, by means of which a nonwoven structure 33 comprising staple fibers is needled to the carrier structure 11.
- the FIG. 2 shows a finished produced inventive press felt 12.
- the press felt 12 has the from the FIGS. 1 and 2 known support structure 11 which is needled on its machine-side 13 with one or more machine-side nonwoven fabric layers 14 and on its side facing the fibrous web 15 with one or more paper-side nonwoven fabric layers 16.
- the nonwoven fabric layers 14, 16 are severed in the region of the seam loops 8, 9 over their entire width (cross machine direction) and their entire thickness to the support structure 11, so that the press felt 12 according to the invention can be stitched in a paper, board or tissue machine by the two transverse ends of the support structure 11 for endlessly making the support structure 11 guided to each other and the seam loops 8, 9 with the formation of a transverse in the support structure 11 extending connecting channel 17 are engaged with each other and through the connecting channel 17 for connecting the seam loops 8, 9 of Carrier structure 11 of the pintle 10 is guided.
Abstract
Description
Die Erfindung betrifft ein nahtbares Pressfilz für eine Maschine zur Herstellung und/oder Behandlung einer Faserstoffbahn, wie beispielsweise einer Papier-, Karton-oder Tissuebahn sowie ein Verfahren zu deren Herstellung.The invention relates to a seamable press felt for a machine for producing and / or treating a fibrous web, such as a paper, board or tissue web, and a method for the production thereof.
Pressfilze bestehen üblicherweise aus einer die Zuglast aufnehmenden Trägerstruktur, die auch im Wesentlichen die Dimensionsstabilität des Pressfilzes bereitstellt.Press felts usually consist of a tensile load-bearing support structure, which also provides substantially the dimensional stability of the press felt.
Die Trägerstrukturen heutiger nahtbarer Pressfilze sind oftmals rund gewobenen, wobei die Maschinenrichtungsgarne unter Ausbildung von Nahtschlaufen zurückgewoben sind. Der Nachteil rund gewobener Strukturen besteht darin, dass der Rundwebvorgang zeitintensiv und kostspielig ist. Des Weiteren ist, da die Kettgarne die Maschinenquerrichtungs- und die Schussgarne die Maschinenrichtungsgarne bilden, die Länge solcher Trägerstrukturen auf die Breite der beim Weben verwendeten Webmaschinen begrenzt.The carrier structures of today's seamable press felts are often woven round, with the machine direction yarns being woven back to form seam loops. The disadvantage of woven structures is that the round weaving process is time-consuming and costly. Furthermore, since the warp yarns constitute the cross-machine direction yarns and the weft yarns the machine direction yarns, the length of such carrier structures is limited to the width of the weaving machines used in weaving.
Um das kostspielige Rundweben zu ersetzen, werden in dem aus der
Insbesondere bei Pressfilzanwendungen besteht seit langer Zeit der Wunsch die teuer herzustellenden Gewebe durch Gelegestrukturen und/oder Wirkstrukturen zu ersetzen, da Gelege und Gewirke deutlich schneller (mit oftmals mehr als 10 facher Geschwindigkeit) gegenüber Geweben hergestellt werden können.In particular, in press felt applications there has long been a desire to replace the expensive fabric by gel structures and / or knit structures, since scrims and knits can be made much faster (often more than 10 times the speed) to fabrics.
Aus der
Es ist die Aufgabe der vorliegenden Erfindung ein in der Maschine nahtbares Pressfilz bereitzustellen, welches eine günstig herzustellende und nicht markierende Trägerstruktur hat.It is the object of the present invention to provide an on-machine seamable press felt which has a low cost and non-marking support structure.
Die Aufgabe wird erfindungsgemäß gelöst durch ein Pressfilz für eine Maschine zur Herstellung und/oder Behandlung einer Faserstoffbahn, insbesondere Papier-, Karton- oder Tissuebahn. Das Pressfilz hat eine die Dimensionsstabilität des Filzes im Wesentlichen beeinflussende Trägerstruktur. Hierbei umfasst die Trägerstruktur ein flach hergestelltes textiles Flächengebilde, das gebildet ist aus Längsgarnen und diese kreuzenden Quergarnen sowie aus Nähgarnen, welche die Längs- und die Quergarne an den Kreuzungsstellen miteinander verbinden.The object is achieved by a press felt for a machine for producing and / or treating a fibrous web, in particular paper, board or tissue web. The press felt has a carrier structure substantially affecting the dimensional stability of the felt. Here, the support structure comprises a flat fabric produced, which is formed from longitudinal yarns and these crossing transverse yarns and sewing threads, which connect the longitudinal and the transverse yarns at the intersection points.
Das textile Flächengebilde des erfindungsgemäßen Pressfilzes ist länger als die Länge der Trägerstruktur und in Abschnitten derart auf sich selbst abgelegt, dass die Trägerstruktur durch mehrere sich jeweils auf der gesamten Länge der Trägerstruktur erstreckende Lagen des textilen Flächengebildes gebildet ist. Hierbei sind die aufeinander angeordneten Lagen zumindest abschnittweise miteinander verbunden.The textile fabric of the press felt according to the invention is longer than the length of the support structure and deposited in such a manner on itself, that the support structure by several in each case over the entire length of the support structure extending layers of the textile fabric is formed. Here, the layers arranged on each other are at least partially connected to each other.
Durch das aufeinander Ablegen der Abschnitte des textilen Flächengebildes sind Umschlagkanten gebildet, die sich quer zur Längsrichtung der Trägerstruktur erstrecken und die ein eines und ein anderes querseitiges Ende der Trägerstruktur festlegen. Im Bereich der Umschlagkanten verlaufen die Längsgarne gekrümmt um an den beiden querseitigen Enden der Trägerstruktur jeweils Nahtschlaufen auszubilden. Die Trägerstruktur ist in einer Papiermaschine nahtbar, indem die beiden querseitigen Enden der Trägerstruktur zum Endlosmachen der Trägerstruktur zueinander geführt werden und die Nahtschlaufen unter Ausbildung eines sich in Querrichtung der Trägerstruktur erstreckenden Verbindungskanals miteinander in Eingriff gebracht sind. Zum Verbinden der beiden querseitigen Enden der Trägerstruktur ist ein Steckdraht durch den Verbindungskanal der Trägerstruktur geführt.By depositing the sections of the textile fabric on one another, cover edges are formed which extend transversely to the longitudinal direction of the support structure and which define a one and another transverse end of the support structure. In the region of the cover edges, the longitudinal yarns are curved to form seam loops at the two transverse ends of the support structure. The support structure is seamable in a paper machine by guiding the two transverse ends of the support structure to make the support structure endless, and engaging the seam loops to form a connecting channel extending transversely of the support structure. For connecting the two transverse ends of the support structure, a pintle wire is passed through the connection channel of the support structure.
Durch die erfindungsgemäße Lösung wird ein Pressfilz mit einer nicht gewobenen Trägerstruktur bereitgestellt, die sowohl Längs- als auch Quergarne hat. Die Längsgarne stellen hierbei die Elemente dar, die zumindest den wesentlichen Teil der auf das Pressfilz einwirkenden Zuglast aufnehmen. Die Quergarne legen zumindest den wesentlichen Teil der Querstabilität des Pressfilzes fest. Da bei der erfindungsgemäßen Lösung die Längsgarne auch die Nahtschlaufen bereitstellen, können die in der
Die erfindungsgemäße Lösung verbindet somit die Vorzüge der aus der
Vorteilhafte Ausgestaltungen und Weiterbildungen sind in den Unteransprüchen angegeben.Advantageous embodiments and further developments are specified in the subclaims.
Die auf sich selbst abgelegten Abschnitte des textilen Flächengebildes können zwei oder mehr ganze Lagen ausbilden. Ist die Trägerstruktur beispielsweise zweilagig, d.h. wird durch zwei sich jeweils über die Länge der Trägerstruktur erstreckende Lagen des textilen Flächengebildes gebildet, so können beispielsweise die beiden Endabschnitte des flach hergestellten textilen Flächengebildes so auf dem Mittenabschnitt des textilen Flächengebildes abgelegt sein, dass sich diese zu einer den Mittenabschnitt vollständig bedeckenden Lage ergänzen. In diesem Fall ist also das textile Flächengebildet in etwa doppelt so lang wie die Trägerstruktur und das Pressfilz.The self-deposited portions of the fabric may form two or more entire layers. For example, if the support structure is two-ply, i. is formed by two in each case over the length of the support structure extending layers of the fabric, so for example, the two end portions of the flat fabric produced fabric may be stored on the center portion of the fabric, that they complement the center portion completely covering position. In this case, therefore, the textile surface is about twice as long as the support structure and the press felt.
Selbstverständlich kann die Trägerstruktur auch drei Lagen des textilen Flächengebildes umfassen oder durch diese gebildet sein. In diesem Fall kann beispielsweise das textile Flächegebilde in drei Abschnitte gleicher Länge aufgeteilt sein, beispielsweise zwei Endabschnitte und einen Mittenabschnitt, die aufeinander abgelegt sind, indem beispielsweise der eine Endabschnitt die eine Seite des Mittenabschnitts vollständig bedeckt und der andere Endabschnitt die der einen Seite gegenüberliegende andere Seite des Mittenabschnitts vollständig bedeckt.Of course, the support structure may also comprise three layers of the textile fabric or be formed by them. In this case, for example, the textile fabric can be divided into three sections of equal length, for example two end sections and one center section laid on top of each other, for example by covering one end section completely on one side of the center section and the other end section on the other side opposite the one side Side of the middle section completely covered.
Vorzugsweise sind die aufeinander abgelegten Abschnitte des textilen Flächengebildes durch Vernähen und/oder Vernadeln miteinander verbunden. Im letzt genannten Fall können die Abschnitte bspw. durch eine aufgenadelte Vliesstruktur aus Stapelfasern miteinander verbunden sein.Preferably, the successive portions of the textile fabric are connected to each other by sewing and / or needling. In the latter case, the sections may, for example, be interconnected by a needled nonwoven structure of staple fibers.
Um das Durchführen des Steckdrahts durch den Verbindungskanal zu erleichtern, sieht eine bevorzugte Ausgestaltung der Erfindung vor, dass im Bereich der Umschlagkanten jeweils ein oder mehrere Quergarne aus dem textilen Flächengebilde entfernt ist bzw. sind.In order to facilitate the passage of the pintle through the connecting channel, a preferred embodiment of the invention provides that one or more transverse yarns is respectively removed from the textile fabric in the region of the cover edges.
Das textile Flächengebilde ist vorzugsweise eine Kettenwirkstruktur oder ein Drehergewebe. Vorzugsweise ist die Trägerstruktur nur durch die eine Kettenwirkstruktur oder das eine Drehergewebe gebildet. Diese beiden Strukturen sind sehr einfach und kostengünstig herzustellen und können beispielsweise in nahezu beliebigen Abmessungen als Rollenware vorgefertigt und entsprechend den spezifischen Dimensionen des herzustellenden Pressfilzes konfektioniert werden.The textile fabric is preferably a warp knit structure or a leno fabric. Preferably, the support structure is formed only by the one warp knit structure or the leno fabric. These two structures are very simple and inexpensive to manufacture and can be prefabricated, for example, in almost any dimensions as a roll product and assembled according to the specific dimensions of the produced press felt.
Vorzugsweise erstrecken sich die Längsgarne in der Trägerstruktur bis auf den Bereich der Nahtschlaufen gerade. Des Weiteren erstrecken sich vorzugsweise die Quergarne in der Trägerstruktur gerade. Unter dem Begriff der "geraden Erstreckung in der Trägerstruktur" soll vorliegend verstanden werden, dass sich die Garne zur Bereitstellung der Trägerstruktur nicht gekrümmt erstrecken, wie dies bspw. bei einem Gewebe der Fall ist. Die o.g. Definition soll nicht ausschließen, das die Garne gekrümmt verlaufen, wenn die Trägerstruktur gekrümmt verläuft, wie dies bspw. bei der endlos gemachten Trägerstruktur der Fall ist.The longitudinal yarns in the support structure preferably extend straight down to the area of the seam loops. Furthermore, the transverse yarns preferably extend straight in the carrier structure. The term "straight extension in the support structure" is to be understood in the present case that the yarns for providing the support structure do not extend in a curved manner, as is the case, for example, with a woven fabric. The o.g. Definition is not intended to exclude that the yarns are curved when the support structure is curved, as is the case, for example, in the case of the support structure made endless.
Bei einem Gewebe erstrecken sich die Garne wechselseitig gekrümmt. Der Vorteil im geraden Verlauf der Längs- und/oder Quergarne liegt einerseits darin, dass weniger Garnmaterial zur Herstellung des textilen Flächengebildes benötigt wird. Ferner sind solche Strukturen insbesondere bei der Verwendung als Pressfilz dimensionsstabiler als ein Gewebe, da eine durch gerade Garne aufgebaute Struktur bei Krafteinwirkung im Pressnip weniger Verzug zeigt als ein Gewebe mit gekrümmt verlaufenden Garnen.In a fabric, the yarns extend mutually curved. The advantage in the straight course of the longitudinal and / or transverse yarns is on the one hand that less yarn material is needed for the production of the textile fabric. Furthermore, such structures are more dimensionally stable than a woven fabric, particularly when used as a press felt, because a structure constructed by straight yarns exhibits less distortion under force in the press nip than a fabric with curved yarns.
Zur Verbesserung der Nahtbarkeit ist es sinnvoll, wenn die Längsgarne Monofilamentgarne sind, da in diesem Fall der Steckdraht deutlich einfacher durch den Verbindungskanal geführt werden kann als wenn die Längsgarne durch Multifilamentgarne gebildet sind. Vorzugsweise sind die die Längsgarne bildenden Monofilamentgarne aus einem Polyamid und/oder einem Polyamid Copolymer gebildet oder enthalten diese(s).To improve the seamability, it makes sense if the longitudinal yarns are monofilament yarns, since in this case the pintle wire can be guided much easier through the connecting channel than if the longitudinal yarns are formed by multifilament yarns. Preferably, the monofilament yarns forming the longitudinal yarns are formed from or contain a polyamide and / or a polyamide copolymer.
Zur Verbesserung der Anbindung der Vliesstruktur an die Trägerstruktur ist es sinnvoll, wenn die Quergarne Multifilamentgarne und/oder Stapelfasergarne sind. In Multifilamentgarnen und/oder Stapelfasergarnen können die Stapelfasern der Vliesstruktur deutlich besser verankert werden als in Monofilamentgarnen. Denkbar ist in diesem Zusammenhang beispielsweise, dass die Multifilamentgarne aus mehreren miteinander verzwirnten Monofilamentgarnen gebildet sind. Denkbar sind hier bspw. 4-fach Zwirne, 6-fach Zwirne, 9-fach Zwirne oder 10-fach-Zwirne, um nur einige mögliche Zwirne zu nennen.To improve the connection of the nonwoven structure to the support structure, it makes sense if the transverse yarns are multifilament yarns and / or staple fiber yarns. In multifilament yarns and / or staple fiber yarns, the staple fibers of the nonwoven structure can be significantly better anchored than in monofilament yarns. It is conceivable in this context, for example, that the multifilament yarns are formed from a plurality of monofilament yarns twisted together. For example, 4-ply threads, 6-ply threads, 9-ply threads, or 10-ply threads, to name but a few possible ply threads, are conceivable here.
Vorteilhafterweise sind die Quergarne zueinander beabstandet, wobei der Abstand zwischen benachbarten Quergarnen zumindest dem Durchmesser der Quergarne entspricht. In diesem Fall sind die Lagen des textilen Flächengebildes vorzugsweise so aufeinander abgelegt, dass Quergarne der einen Lage zwischen benachbarten Quergarnen der anderen Lage angeordnet sind und umgekehrt. Hierdurch kann die Dicke zweier aufeinander abgelegter Lagen reduziert werden. Des Weiteren werden die aufeinander abgelegten Lagen zueinander fixiert.Advantageously, the transverse yarns are spaced from each other, wherein the distance between adjacent transverse yarns corresponds at least to the diameter of the transverse yarns. In this case, the layers of the textile fabric are preferably laid on each other such that transverse yarns of the one layer are arranged between adjacent transverse yarns of the other layer and vice versa. As a result, the thickness of two successive layers can be reduced. Furthermore, the successive layers are fixed to each other.
Ferner ist es denkbar, dass die Längsgarne zueinander beabstandet sind und der Abstand zwischen benachbarten Längsgarnen zumindest dem Durchmesser der Längsgarne entspricht. In diesem Fall sind die Lagen des textilen Flächengebildes vorzugsweise so aufeinander abgelegt, dass Längsgarne der einen Lage zwischen benachbarten Längsgarnen der anderen Lage angeordnet sind und umgekehrt.Furthermore, it is conceivable that the longitudinal yarns are spaced apart from each other and the distance between adjacent longitudinal yarns corresponds at least to the diameter of the longitudinal yarns. In this case, the layers of the textile fabric are preferably laid on each other such that longitudinal yarns of the one layer are arranged between adjacent longitudinal yarns of the other layer and vice versa.
Um Markierungen durch lokale Dickenschwankungen zu reduzieren, sind die Durchmesser der Quergarne vorzugsweise dem Durchmesser des Steckdrahts angepasst. Eine bevorzugte Ausgestaltung der Erfindung sieht daher vor, dass der Durchmesser der Quergarne im wesentlichen dem Durchmesser des Steckdrahts entspricht.In order to reduce markings by local variations in thickness, the diameters of the transverse yarns are preferably adapted to the diameter of the plug-in wire. A preferred embodiment of the invention therefore provides that the diameter of the transverse yarns substantially corresponds to the diameter of the plug-in wire.
Vorzugsweise erstrecken sich die Längsgarne in der vorgesehenen Maschinenrichtung und die Quergarne in der vorgesehenen Maschinenquerrichtung des Pressfilzes.Preferably, the longitudinal yarns extend in the intended machine direction and the transverse yarns in the intended cross-machine direction of the press felt.
Das erfindungsgemäße Verfahren zur Herstellung eines Pressfilzes, das in einer Maschine zur Herstellung und/oder Behandlung einer Faserstoffbahn nahtbar ist und eine Trägerstruktur hat, umfasst bei der Herstellung der Trägerstruktur die folgenden Schritte:
- a) Bereitstellen eines flach hergestellten textilen Flächengebilde das gebildet ist aus Längsgarnen und diese kreuzenden Quergarnen sowie die Längs- und die Quergarne an den Kreuzungsstellen miteinander verbindenden Nähgarnen, wobei das textile Flächengebilde länger ist als die Länge der Trägerstruktur,
- b) Ablegen des textilen Flächengebildes auf sich selbst, durch aufeinander legen von Abschnitten des textilen Flächengebildet derart, dass die Trägerstruktur durch mehrere sich jeweils auf der gesamten Länge der Trägerstruktur erstreckende Lagen des textilen Flächengebildes gebildet wird, wobei durch das aufeinander Ablegen der Abschnitte des textilen Flächengebildes Umschlagkanten gebildet werden, die sich quer zur Längsrichtung der Trägerstruktur erstrecken und die ein eines und ein anderes querseitiges Ende der Trägerstruktur festlegen, wodurch die im Bereich der Umschlagkanten gekrümmt verlaufenden Längsgarne an den beiden querseitigen Enden der Trägerstruktur jeweils Nahtschlaufen ausbilden,
- c) Endlosmachen des auf sich selbst abgelegten, die Trägerstruktur bildenden Flächengebildes durch Zusammenführen der Nahtschlaufen des einen querseitigen Endes und der Nahtschlaufen des anderen querseitigen Endes unter Ausbildung eines Verbindungskanals und Durchführen eines Steckdrahts durch den Verbindungskanal.
- a) providing a flat fabric which is formed from longitudinal yarns and these crossing transverse yarns as well as the longitudinal and the transverse yarns at the intersections connecting sewing yarns, wherein the fabric is longer than the length of the support structure,
- b) depositing the textile fabric on itself, by laying on each other of sections of the textile surface formed such that the support structure is formed by a plurality of each extending over the entire length of the support structure layers of the fabric, wherein by stacking the sections of the textile Sheet-formed cover edges which extend transversely to the longitudinal direction of the support structure and which define one and another transverse end of the support structure, whereby the longitudinal yarns running in the region of the cover edges form seam loops at the two transverse ends of the support structure, respectively
- c) endlessizing the self-deposited support structure forming sheet by merging the seam loops of the one transverse side end and the seam loops of the other transverse end to form a connection channel and passing a pintle through the connection channel.
Das erfindungsgemäße Verfahren kann nach einer Weiterbildung der Erfindung den weiteren Schritt umfassen, dass jeweils ein oder mehrere Quergarne aus dem textilen Flächengebilde im Bereich der Umschlagkanten entfernt wird bzw. werden.According to a development of the invention, the method according to the invention may comprise the further step of removing one or more transverse yarns from the textile fabric in the region of the cover edges.
Des Weiteren kann das erfindungsgemäße Verfahren nach einer Weiterbildung der Erfindung den Schritt umfassen, dass die aufeinander abgelegten Lagen des die Trägerstruktur bildenden textilen Flächengebildes miteinander verbunden werden. Hierbei ist es möglich, dass die Lagen nur entlang von Linien miteinander verbunden werden, wie dies bspw. beim Vernähen der Lagen miteinander der Fall sein kann. Denkbar ist auch, die Lagen flächig miteinander zu verbinden, wie dies bspw. der Fall sein kann, wenn die Lagen miteinander verklebt werden.Furthermore, according to a development of the invention, the method according to the invention may comprise the step of connecting the layers of the textile fabric forming the carrier structure to one another. In this case, it is possible for the layers to be connected to one another only along lines, as may be the case when the layers are stitched together, for example. It is also conceivable to connect the layers with one another in a planar manner, as may be the case, for example, when the layers are glued together.
Das flach hergestellte textile Flächengebilde hat zwei Querkanten, die das textile Flächengebilde in seiner Länge begrenzen sowie zwei Längskanten, die das textile Flächengebilde in seiner Breite begrenzen. Des weiteren hat das textile Flächengebilde eine Oberseite und eine dieser gegenüberliegende Unterseite.The flat fabric has two transverse edges which limit the length of the fabric and two longitudinal edges which limit the width of the fabric. Furthermore, the textile fabric has an upper side and a lower side opposite thereto.
Nach einer bevorzugten Ausgestaltung des erfindungsgemäßen Verfahrens wird vorgeschlagen, dass aus dem textilen Flächengebilde vor Schritt b) ein schlauchförmiges Gebilde erzeugt wird.According to a preferred embodiment of the method according to the invention, it is proposed that a tubular structure is produced from the textile fabric before step b).
Hierbei ist es insbesondere denkbar, dass das textile Flächengebilde zur Bildung des schlauchförmigen Gebildes im Bereich seiner beiden Querkanten mit sich selbst verbunden wird, indem ein an die eine Querkante angrenzender einer Endabschnitt des textilen Flächengebildes auf einen an die andere Querkante angrenzenden anderen Endabschnitt des textilen Flächengebildes abgelegt wird. Vorzugsweise erfolgt das Ablegen derart, dass entweder die Oberseite des einen Endabschnitts auf der Oberseite des anderen Endabschnitts abgelegt wird oder die Unterseite des einen Endabschnitts auf der Unterseite des anderen Endabschnitts abgelegt wird und die aufeinander abgelegten Endabschnitte zumindest abschnittweise miteinander verbunden werden. Die Verbindung kann hierbei bspw. mittels eines Verfahrens erfolgen, bei dem das Material des Flächengebildes, d.h. die Längsfäden und/oder Querfäden und/oder Nähfäden, im Bereich der beiden Endabschnitte des textilen Flächengebildes zumindest teilweise durch Verschmelzen miteinander verbunden werden.In this case, it is conceivable, in particular, for the fabric to be joined to itself in the region of its two transverse edges to form the tubular structure, by an end section of the fabric adjoining the one transverse edge projecting onto another end section of the textile fabric adjacent to the other transverse edge is filed. Preferably, the depositing takes place such that either the top of the one end portion is placed on top of the other end portion or the bottom of the one end portion is placed on the underside of the other end portion and the successive end portions are at least partially connected to each other. The compound can in this case, for example. By means of a method take place, in which the material of the sheet, ie, the longitudinal threads and / or transverse threads and / or sewing threads, are at least partially connected by fusing in the region of the two end portions of the textile fabric.
Denkbar ist insbesondere, dass nach der Herstellung des schlauchförmigen Gebildes, Schritt b) durchgeführt wird. Ferner ist denkbar, dass nach Schritt c) eine Fixierung der Nahtschlaufen erfolgt. Hierzu ist es insbesondere denkbar, dass nach Verbinden der Nahtschlaufen die aus mehreren Lagen des textilen Flächengebildes gebildete Trägerstruktur um zwei zueinander parallele Walzen geführt wird, mittels deren die Trägerstruktur in ihrer Längserstreckung gespannt wird, wodurch die Nahtschlaufen in ihrem Verlauf fixiert werden. Die Fixierung kann zusätzlich zu der Zugspannung unter Einwirkung von Temperatur erfolgen. Hierzu ist es bspw. denkbar, dass eine oder beide der Walzen beheizt sind. Denkbar ist auch, das textile Flächengebilde auf andere Art und Weise, bspw. durch Wärmestrahlung, einer Temperaturbehandlung während der Zugspannung zu unterziehen. Zusätzlich zu der Zugspannung kann das die mehrlagige Struktur bildende textile Flächengebilde auch durch einen Pressspalt geführt werden.It is conceivable, in particular, that after the production of the tubular structure, step b) is carried out. Furthermore, it is conceivable that, after step c), the seam loops are fixed. For this purpose, it is particularly conceivable that, after joining the seam loops, the support structure formed from a plurality of layers of the fabric is guided around two parallel rollers, by means of which the support structure is tensioned in its longitudinal extent, whereby the seam loops are fixed in their course. The fixation can be done in addition to the tensile stress under the influence of temperature. For this purpose, it is, for example, conceivable that one or both of the rollers are heated. It is also conceivable to subject the textile fabric in another way, for example by heat radiation, to a temperature treatment during the tensile stress. In addition to the tensile stress, the textile fabric forming the multilayer structure can also be guided through a press nip.
Ein weiteres erfindungsgemäßes Verfahren zur Herstellung eines Pressfilzes, das in einer Maschine zur Herstellung und/oder Behandlung einer Faserstoffbahn nahtbar ist und eine Trägerstruktur hat, umfasst bei der Herstellung der Trägerstruktur die folgenden Schritte:
- a) Bereitstellen eines flach hergestellten textilen Flächengebildes, welches sich in Längsrichtung des Pressfilzes erstreckende Längsgarne umfasst, wobei das textile Flächengebilde eine Ober- und eine Unterseite hat sowie dieses in seiner Länge begrenzende Endabschnitte, und wobei das textile Flächengebilde länger ist als die herzustellende Trägerstruktur,
- b) Bildung eines schlauchförmigen Gebildes aus dem textilen Flächengebilde durch Zusammenführen der beiden Endabschnitte des textilen Flächengebildes und Ablegen der beiden Endabschnitte aufeinander, wobei entweder die Oberseite im Bereich des einen Endabschnitts auf der Oberseite im Bereich des anderen Endabschnitts abgelegt wird oder die Unterseite im Bereich des einen Endabschnitts auf der Unterseite im Bereich des anderen Endabschnitts und
- c) Verbinden der beiden aufeinander abgelegten Endabschnitte miteinander,
- d) Ablegen des schlauchförmigen Gebildes auf sich selbst unter Bildung einer Trägerstruktur mit mehreren aufeinander abgelegten Lagen und mit Umschlagkanten, die sich quer zur Längsrichtung der Trägerstruktur erstrecken und die ein eines und ein anderes querseitiges Ende der Trägerstruktur festlegen, wobei die im Bereich der Umschlagkanten gekrümmt verlaufenden Längsgarne an den beiden querseitigen Enden der Trägerstruktur jeweils Nahtschlaufen ausbilden,
- e) Endlosmachen des auf sich selbst abgelegten, die Trägerstruktur bildenden schlauchförmigen Gebildes durch Zusammenführen der Nahtschlaufen des einen querseitigen Endes und der Nahtschlaufen des anderen querseitigen Endes unter Ausbildung eines Verbindungskanals und Durchführen eines Steckdrahts durch den Verbindungskanal, und
- d) optionales Verbinden der aufeinander abgelegten Lagen miteinander.
- a) providing a flat fabric which comprises longitudinal yarns extending in the longitudinal direction of the press felt, the fabric having top and bottom surfaces and end portions defining the length thereof, and wherein the fabric is longer than the support structure to be produced;
- b) forming a tubular structure from the fabric by merging the two end portions of the textile fabric and depositing the two end portions on each other, wherein either the top is deposited in the region of the one end portion on the upper side in the region of the other end portion or the bottom in the region of an end portion on the bottom in the area of the other end portion and
- c) connecting the two successive end sections to one another,
- d) depositing the tubular structure on itself to form a support structure with a plurality of layers deposited on each other and with cover edges which extend transversely to the longitudinal direction of the support structure and which define one and another transverse end of the support structure, the curved in the region of the cover edges running longitudinal yarns at the two transverse ends of the support structure each forming seam loops,
- e) making the self-contained tubular structure forming the support structure merge the seam loops of the one transverse side end and the seam loops of the other transverse end to form a connection channel and insert a pintle through the connection channel, and
- d) optionally connecting the layers deposited on one another.
Die Erfindung wird nachfolgend anhand von schematischen, nicht maßstäblichen Zeichnungen weiter erläutert. Es zeigen:
Figur 1- eine Ausführungsform eines erfindungsgemäßen Verfahrens zur Herstellung eines erfindungsgemäßen Pressfilzes,
Figur 2- eine Ausführungsform eines erfindungsgemäßen Verfahrens zur Herstellung eines erfindungsgemäßen Pressfilzes,
Figur 3- eine Ausführungsform eines erfindungsgemäßen Pressfilzes.
- FIG. 1
- an embodiment of a method according to the invention for producing a press felt according to the invention,
- FIG. 2
- an embodiment of a method according to the invention for producing a press felt according to the invention,
- FIG. 3
- an embodiment of a press felt according to the invention.
Die
Es wird eine textiles Flächengebilde 1 bereitgestellt. Das textile Flächengebilde 1 ist gebildet aus Längsgarnen 2 sowie Quergarnen 3a, 3b, 3c, welche die Längsgarne 2 kreuzen. Die Längsgarne 2 sind mit den Quergarnen 3a, 3b, 3c an den Kreuzungsstellen mittels Nähgarnen 4 miteinander verbunden. Vorliegend bildet das textile Flächengebilde 1 eine einlagige Kettenwirkstruktur. Die Längsgarne 2 sind aus einem Polyamid und als Monofilamentgarne ausgebildet, wohingegen die Quergarne 3a, 3b, 3c als Multifilamentgarne ausgebildet sind.A
Die Kettenwirkstruktur 1 ist länger als die Länge der herzustellenden Trägerstruktur 11. Vorliegend ist die Kettenwirkstruktur 1 etwa doppelt so lang wie die herzustellende Trägerstruktur 11. Die Kettenwirkstruktur 1 hat in ihrer Länge betrachtet zwei Endabschnitte 5b, 5c sowie einen Mittenabschnitt 5a, wobei die beiden Endabschnitte 5b, 5c zusammen in etwa die Länge des Mittenabschnitts 5a haben (siehe
In den
Mittenabschnitt 5a abgelegt, dass die Trägerstruktur 11 durch mehrere sich jeweils auf der gesamten Länge der Trägerstruktur 11 erstreckende Lagen des textilen Flächengebildes 1 gebildet wird. Mit anderen Worten bilden die beiden Endabschnitte 5b, 5c zusammen eine Lage der Trägerstruktur 11, wie der Mittenabschnitt 5a eine Lage der Trägerstruktur 11 bildet. Durch das aufeinander Ablegen der Endabschnitte 5b, 5c auf dem Mittenabschnitt 5a werden des weiteren Umschlagkanten 6, 7 gebildet, die sich quer zur Längsrichtung der Trägerstruktur 11 erstrecken und die ein eines und ein anderes querseitiges Ende der Trägerstruktur 11 festlegen.
Man erkennt aus der Darstellung der
Vor dem aufeinander Ablegen oder danach können nun eines oder mehrerer der Quergarne 3b, 3c aus dem textilen Flächengebilde 1 im Bereich der Umschlagkanten 6, 7 entfernt werden: Die im Bereich der Umschlagkanten 6, 7 gekrümmt verlaufenden Längsgarne 2 bilden an den beiden querseitigen Enden der Trägerstruktur 11 jeweils Nahtschlaufen 8, 9 aus, durch welche zum Endlosmachen der Trägerstruktur 11 ein Steckdraht 10 führbar ist (siehe
Nachfolgend werden die aufeinander abgelegten Lagen des textilen Flächengebildes 1 miteinander verbunden. Dies kann bspw. durch Vernähen der Lagen erfolgen und/oder beim Vernadeln einer Vliesstruktur aus Stapelfasern.Subsequently, the successive layers of the
Die
Das in der
Das textile Flächengebilde 1 hat zwei Querkanten 18, 19, die das textile Flächengebilde in seiner Länge begrenzen sowie eine Oberseite 20 und eine dieser gegenüberliegende Unterseite 21.The
Zur Bildung des schlauchförmigen Gebildes 25 wird das textile Flächengebilde 1 im Bereich seiner beiden Querkanten 18, 19 mit sich selbst verbunden. Hierzu wird ein an die eine Querkante 18 angrenzender einer Endabschnitt 26 des textilen Flächengebildes 1 auf einen an die andere Querkante 19 angrenzenden anderen Endabschnitt 27 des textilen Flächengebildes abgelegt. Das Ablegen erfolgt vorliegend derart, dass die Oberseite 20 des einen Endabschnitts 26 auf der Oberseite 20 des anderen Endabschnitts 27 abgelegt wird. Nachfolgend werden die aufeinander abgelegten Endabschnitte 26, 27 in einem Verbindungsbereich 24 miteinander verbunden, bspw. durch eine Heißdrahtvorrichtung 23. Der Verbindungsbereich 24 verläuft in der Darstellung der
Der Verbindungsbereich 24 kann nachfolgend bspw. mittels Ultraschalleinwirkung geglättet werden.The
In den
Man erkennt aus der Darstellung der
Vor dem aufeinander Ablegen oder danach können ein oder mehrere der Quergarne 3 aus dem textilen Flächengebilde 1 im Bereich der Umschlagkanten 6, 7 entfernt werden. Die im Bereich der Umschlagkanten 6, 7 gekrümmt verlaufenden Längsgarne 2 bilden an den beiden querseitigen Enden der Trägerstruktur 11 jeweils Nahtschlaufen 8, 9 aus.One or more of the
Die aufeinander abgelegten Lagen 28, 29 des schlauchförmigen Gebildes 25 können miteinander verbunden werden. Dies kann bspw. durch Vernähen der Lagen 28, 29 erfolgen.The successive layers 28, 29 of the tubular structure 25 can be connected to each other. This can be done, for example, by sewing the
Bei dem in der
Nach dem Fixieren wird die Trägerstruktur 11 einer Vernadelungseinrichtung 32 zugeführt, mittels der eine Stapelfasern umfassende Vliesstruktur 33 mit der Trägerstruktur 11 vernadelt wird.After fixing, the
Die
Claims (16)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE200910002121 DE102009002121A1 (en) | 2009-04-02 | 2009-04-02 | Seam press felt with flat and non-woven support structure |
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EP2236666A1 true EP2236666A1 (en) | 2010-10-06 |
EP2236666B1 EP2236666B1 (en) | 2012-02-29 |
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EP20100157263 Not-in-force EP2236666B1 (en) | 2009-04-02 | 2010-03-23 | Seamable press felt with flat manufactured non-woven base structure |
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EP (1) | EP2236666B1 (en) |
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CA3177688A1 (en) | 2013-11-14 | 2015-05-21 | Gpcp Ip Holdings Llc | Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets |
DE102014200502A1 (en) | 2014-01-14 | 2015-07-16 | Voith Patent Gmbh | Sewing fabric with flat and non-woven support structure |
DE202019102306U1 (en) * | 2019-04-24 | 2019-07-25 | Heimbach Gmbh | Press felt with a scrim and a provided on the machine side or the paper side of the scrim carrier fleece |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3948722A (en) | 1973-07-28 | 1976-04-06 | Scapa-Porritt Limited | Warp knitted paper maker's felt and method for the production thereof |
EP0261488A1 (en) | 1986-09-24 | 1988-03-30 | Thomas Josef Heimbach GmbH & Co. | Paper-making felt and process for making the same |
EP0290653A1 (en) | 1987-05-14 | 1988-11-17 | Thomas Josef Heimbach GmbH & Co. | Material web |
WO1989012717A1 (en) | 1988-06-17 | 1989-12-28 | Scapa Group Plc | Papermaker's fabrics |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19814473A1 (en) * | 1998-04-01 | 1999-10-07 | Heimbach Gmbh Thomas Josef | Machine felt and process for its manufacture |
US7892402B2 (en) * | 2007-10-05 | 2011-02-22 | Albany International Corp. | Flat woven full width on-machine-seamable fabric |
-
2009
- 2009-04-02 DE DE200910002121 patent/DE102009002121A1/en not_active Withdrawn
-
2010
- 2010-03-23 AT AT10157263T patent/ATE547561T1/en active
- 2010-03-23 EP EP20100157263 patent/EP2236666B1/en not_active Not-in-force
- 2010-04-01 CN CN2010201658523U patent/CN201952679U/en not_active Expired - Fee Related
- 2010-04-01 US US12/752,672 patent/US8388811B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3948722A (en) | 1973-07-28 | 1976-04-06 | Scapa-Porritt Limited | Warp knitted paper maker's felt and method for the production thereof |
EP0261488A1 (en) | 1986-09-24 | 1988-03-30 | Thomas Josef Heimbach GmbH & Co. | Paper-making felt and process for making the same |
EP0290653A1 (en) | 1987-05-14 | 1988-11-17 | Thomas Josef Heimbach GmbH & Co. | Material web |
WO1989012717A1 (en) | 1988-06-17 | 1989-12-28 | Scapa Group Plc | Papermaker's fabrics |
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US8388811B2 (en) | 2013-03-05 |
DE102009002121A1 (en) | 2010-10-14 |
US20100252219A1 (en) | 2010-10-07 |
CN201952679U (en) | 2011-08-31 |
ATE547561T1 (en) | 2012-03-15 |
EP2236666B1 (en) | 2012-02-29 |
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