EP2699717B1 - Spinneret for wet spinning - Google Patents

Spinneret for wet spinning Download PDF

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Publication number
EP2699717B1
EP2699717B1 EP12713750.3A EP12713750A EP2699717B1 EP 2699717 B1 EP2699717 B1 EP 2699717B1 EP 12713750 A EP12713750 A EP 12713750A EP 2699717 B1 EP2699717 B1 EP 2699717B1
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EP
European Patent Office
Prior art keywords
spinneret
plate
spinning
wet spinning
support
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.)
Not-in-force
Application number
EP12713750.3A
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German (de)
French (fr)
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EP2699717A1 (en
Inventor
Erwin Glawion
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler Nonwovens and Man Made Fibers GmbH
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Truetzschler Nonwovens and Man Made Fibers GmbH
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Publication of EP2699717A1 publication Critical patent/EP2699717A1/en
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Publication of EP2699717B1 publication Critical patent/EP2699717B1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/027—Spinnerettes containing inserts
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/06—Distributing spinning solution or melt to spinning nozzles
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods

Definitions

  • the invention relates to a spinneret for wet spinning according to the preamble of claim 1.
  • a spinneret for wet spinning which has a spinneret plate with a plurality of nozzle orifices.
  • the designed as a bottom of a pot nozzle plate is attached to the underside of a housing, which is acted upon by the solution to be spun.
  • the nozzle openings are arranged in four sectors, which are separated by alleys.
  • the function of the alleys is to flow around the freshly spun filaments with a precipitation bath which is as homogeneously concentrated as possible, thus making it possible for the filaments emerging in the inner region of the nozzle plate to experience the same coagulation conditions as possible for the filaments in the outer region.
  • the US 2 051 861 describes a wet spinning nozzle with a spinneret plate containing the nozzle orifices arranged in an annular zone.
  • the attached to the underside of a housing spinneret plate is associated inside the housing a the flow of the spinning solution in the zone of the nozzle openings directing displacement body, which is in the form of a cylinder or a truncated cone between the inside of the spinneret plate and one inside the housing and parallel to the spinneret plate extending sieve or filter layer is arranged.
  • the upper end of this displacement body ends with an end region extending parallel to the sieve or filter layer on the sieve or filter layer.
  • the DE 75 28 63 U describes a wet spinning nozzle in a coagulating bath, with a circular nozzle plate and one of the nozzle plate opposite streaming device, by means of which the freshly spun filaments, just the spun in the central region of the nozzle plate, are supplied with fresh Koagulierfactkeit.
  • the onflow device is a pipe closed on one side, the axis of symmetry of which is directed perpendicular to the center of the nozzle plate and thus placed in the stream of freshly spun filaments.
  • the tube On the shell side, the tube has outflow openings for coagulating liquid.
  • the invention is thus based on a wet spinning nozzle, consisting of a housing which forms with a spinneret plate attached to the underside a chamber acted upon with spinning solution, wherein the spinneret plate has nozzle openings at least in an annular region, and a displacement body arranged above the spinneret plate within the chamber through which the spinning solution is directed towards the annular zone.
  • Object of the present invention is to improve a generic device.
  • the displacement body is attached to a carrier which is arranged upstream in the flow direction of the spinning liquid of the spinneret plate.
  • This carrier is designed in particular as a permeable by a plurality of channels designed support plate, which is arranged on the underside of the housing and on its side facing away from the housing side in turn the spinneret plate is mounted.
  • the displacement body is preferably as a the support plate trained screwing, wherein the Spinntteszufarssel facing end is convex and preferably pointed.
  • the screwing on the underside of the support plate is cylindrical with a flat base, on which the back of the spinneret plate with its central and there having no nozzle openings area rests plan.
  • a further preferred embodiment of the invention provides that the plate in the flow direction of the spinning liquid is preceded by a sieve or filter layer in the form of a microporous filter plate. Trained as a screw displacement body also passes through this filter plate and fixes them.
  • FIG. 1 shows a wet spinning nozzle NSD with a downwardly designed housing G in the manner of a bell.
  • the housing G has in the upper region an inflow Z for the spinning solution to be spun.
  • a support plate TP is inserted into the opening of the housing G, which has a plurality of flow channels DK in an annular zone.
  • a filter plate FP is placed, which is designed to be permeable corresponding to the region of the flow channels DK.
  • the support plate TP and the overlying filter plate FP each have an opening through which a screw MK, SG engages, which is formed in the upper part as a tapered mother head MK with external hexagon and below as a screw SG with threaded shank, wherein the threaded shank of the screw SG passes through the support plate TP and the overlying filter plate FP.
  • the lower end of the screw SG is flat and has a hexagon socket.
  • the screw connection MK, SG and in particular the pointed mother head MK form the displacement body VK, through which the solution to be spinned in the interior of the housing G is distributed symmetrically in the direction of the nozzle openings D ⁇ .
  • a cup bottom-shaped spinneret plate SP is used together with the carrier and the filter plate TP, FP, which has a folded edge.
  • Carrier, filter and spinneret plate TP, FP, SP are together with one on the bottom Housing area twisted threaded ring GR attached to the housing G.
  • the spinneret plate SP has an annular region with nozzle openings D ⁇ .
  • the central region MB of the spinneret plate SP has no openings D ⁇ and is applied to the lower surface of the head of the screw SG of the displacer with force.
  • the force with which the spinneret plate SP bears against the screw head SG is predetermined by the shape of the spinneret plate SP and dimensioned such that even when the housing chamber is pressurized with the solution to be spun under pressure, the spinneret plate SP does not lose contact with the screw head SG.
  • an elastic seal is placed between the screw head SG and spinneret plate SP.
  • FIG. 2 shows a plan view of the spinneret plate SP with arranged in the annular region nozzle openings D ⁇ .
  • the outer diameter of the annular nozzle area is 85mm, the inner diameter is 30mm.
  • the nozzle diameter is 0.06mm and the hole spacing is 0.643mm, giving 15.6 rows of holes per cm.
  • the inner surface without nozzle openings is thus only 12.8% of the total area.
  • FIG. 3 shows a development of the invention, wherein in the spinning bath of the spinneret plate SP is confronted with a flow device AV in the form of a tube.
  • the tube AV is located in the central region of the spinneret plate SP, which has no nozzle openings D ⁇ , in which no filaments are spun.
  • the spinneret plate SP opposite end of the tube AV is closed, the end region of the tube AV has outlet openings A ⁇ for coagulation liquid, wherein the outlet openings A ⁇ are oriented such that the liquid runs substantially parallel to the surface of the spinneret plate SP, ie the filaments are flowed perpendicularly. It is thereby achieved that the filaments spun in the inner zone of the annular nozzle area also come into contact with fresh coagulating liquid as do the filaments on the outer edge of the spinneret plate SP.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Description

Die Erfindung betrifft eine Spinndüse zum Nassspinnen gemäß dem Oberbegriff von Anspruch 1.The invention relates to a spinneret for wet spinning according to the preamble of claim 1.

Aus der DE 199 35 327 A1 ist eine Spinndüse zum Nassspinnen bekannt, welche eine Spinndüsenplatte mit einer Vielzahl von Düsenöffnungen aufweist. Die als Boden eines Topfes gestaltete Düsenplatte ist an der Unterseite eines Gehäuses angebracht, welches mit der zu verspinnenden Lösung beaufschlagt wird. Die Düsenöffnungen sind in vier Sektoren anbeordnet, welche durch Gassen voneinander getrennt sind. Die Funktion der Gassen besteht darin, die frisch versponnenen Filamente mit einem möglichst homogen konzentrierten Fällbad zu umströmen, es also zu ermöglichen, dass die im Inneren Bereich der Düsenplatte austretenden Filamente möglichst die gleichen Koagulationsbedingungen erfahren wie die Filamente im Außenbereich.From the DE 199 35 327 A1 For example, there is known a spinneret for wet spinning which has a spinneret plate with a plurality of nozzle orifices. The designed as a bottom of a pot nozzle plate is attached to the underside of a housing, which is acted upon by the solution to be spun. The nozzle openings are arranged in four sectors, which are separated by alleys. The function of the alleys is to flow around the freshly spun filaments with a precipitation bath which is as homogeneously concentrated as possible, thus making it possible for the filaments emerging in the inner region of the nozzle plate to experience the same coagulation conditions as possible for the filaments in the outer region.

Die US 2 051 861 beschreibt eine Nassspinndüse mit einer Spinndüsenplatte, welche die Düsenöffnungen in einer ringförmigen Zone angeordnet enthält. Der an der Unterseite eines Gehäuses angebrachte Spinndüsenplatte ist im Inneren des Gehäuses eine die Strömung der Spinnlösung in die Zone der Düsenöffnungen lenkender Verdrängungskörper zugeordnet, der sich in Form eines Zylinders bzw. eines Kegelstumpfes zwischen der Innenseite der Spinndüsenplatte und einer im Gehäuseinneren und parallel zur Spinndüsenplatte verlaufenden Sieb- bzw. Filterschicht angeordnet ist. Das obere Ende dieses Verdrängungskörpers endet mit einem parallel zur Sieb- bzw. Filterschicht verlaufenden Endbereich an der Sieb- bzw. Filterschicht.The US 2 051 861 describes a wet spinning nozzle with a spinneret plate containing the nozzle orifices arranged in an annular zone. The attached to the underside of a housing spinneret plate is associated inside the housing a the flow of the spinning solution in the zone of the nozzle openings directing displacement body, which is in the form of a cylinder or a truncated cone between the inside of the spinneret plate and one inside the housing and parallel to the spinneret plate extending sieve or filter layer is arranged. The upper end of this displacement body ends with an end region extending parallel to the sieve or filter layer on the sieve or filter layer.

Die DE 75 28 63 U beschreibt eine Nassspinndüse in einem Koagulierbad, mit einer kreisrunden Düsenplatte und einer der Düsenplatte gegenübergestellten Anströmvorrichtung, vermittels der die frisch gesponnenen Filamente, gerade die im mittleren Bereich der Düsenplatte gesponnenen, mit frischer Koagulierflüssigkeit versorgt werden. Die Anströmvorrichtung ist ein einseitig geschlossenes Rohr, dessen Symmetriesachse senkrecht auf die Mitte der Düsenplatte gerichtet und so in den Strom der frisch gesponnenen Filamente gestellt ist. Mantelseitig weist das Rohr Ausströmöffnungen für Koagulierflüssigkeit auf.The DE 75 28 63 U describes a wet spinning nozzle in a coagulating bath, with a circular nozzle plate and one of the nozzle plate opposite streaming device, by means of which the freshly spun filaments, just the spun in the central region of the nozzle plate, are supplied with fresh Koagulierflüssigkeit. The onflow device is a pipe closed on one side, the axis of symmetry of which is directed perpendicular to the center of the nozzle plate and thus placed in the stream of freshly spun filaments. On the shell side, the tube has outflow openings for coagulating liquid.

Die Erfindung geht somit aus von einer Nassspinndüse, bestehend aus einem Gehäuse, welches mit einer an der Unterseite angebrachten Spinndüsenplatte eine mit Spinnlösung beaufschlagbare Kammer bildet, wobei die Spinndüsenplatte zumindest in einem ringförmigen Bereich Düsenöffnungen aufweist, und einem oberhalb der Spinndüsenplatte angeordneten Verdrängungskörper innerhalb der Kammer, durch welchen die Spinnlösung in Richtung der ringförmigen Zone geleitet wird.The invention is thus based on a wet spinning nozzle, consisting of a housing which forms with a spinneret plate attached to the underside a chamber acted upon with spinning solution, wherein the spinneret plate has nozzle openings at least in an annular region, and a displacement body arranged above the spinneret plate within the chamber through which the spinning solution is directed towards the annular zone.

Aufgabe der vorliegenden Erfindung ist es, eine gattungsgemäße Einrichtung zu verbessern.Object of the present invention is to improve a generic device.

Gelöst wird diese Aufgabe durch die Merkmale des Vorrichtungsanspruches. Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.This problem is solved by the features of the device claim. Advantageous developments of the invention will become apparent from the dependent claims.

Gemäß der Erfindung ist vorgesehen, dass der Verdrängungskörper an einem in Strömungsrichtung der Spinnflüssigkeit der Spinndüsenplatte vorgeordneten Träger angebracht ist. Dieser Träger ist insbesondere als eine durch eine Vielzahl von Kanälen durchlässig gestaltete Trägerplatte ausgebildet, welche an der Unterseite des Gehäuses angeordnet ist und an deren vom Gehäuse abgewandten Seite ihrerseits die Spinndüsenplatte angebracht ist.According to the invention, it is provided that the displacement body is attached to a carrier which is arranged upstream in the flow direction of the spinning liquid of the spinneret plate. This carrier is designed in particular as a permeable by a plurality of channels designed support plate, which is arranged on the underside of the housing and on its side facing away from the housing side in turn the spinneret plate is mounted.

Der Verdrängungskörper ist vorzugsweise als eine die Trägerplatte durchgreifende Verschraubung ausgebildet, wobei das der Spinnlösungszufuhr zugewandte Ende konvex und vorzugsweise zugespitzt ausgeführt ist. Der Verschraubungsteil an der Unterseite der Trägerplatte ist zylindrisch mit ebener Grundfläche gestaltet, an der die Rückseite der Spinndüsenplatte mit ihrem mittleren und dort keine Düsenöffnungen aufweisende Bereich plan anliegt.The displacement body is preferably as a the support plate trained screwing, wherein the Spinnlösungszufuhr facing end is convex and preferably pointed. The screwing on the underside of the support plate is cylindrical with a flat base, on which the back of the spinneret plate with its central and there having no nozzle openings area rests plan.

Eine weitere bevorzugte Weiterbildung der Erfindung sieht vor, dass der Platte in Strömungsrichtung der Spinnflüssigkeit eine Sieb- bzw. Filterschicht in Form einer mikroporösen Filterplatte vorgeordnet ist. Der als Verschraubung ausgebildete Verdrängungskörper durchgreift auch diese Filterplatte und fixiert diese.A further preferred embodiment of the invention provides that the plate in the flow direction of the spinning liquid is preceded by a sieve or filter layer in the form of a microporous filter plate. Trained as a screw displacement body also passes through this filter plate and fixes them.

Zusammenfassend sind als Weiterbildungen der Erfindung vorgesehen:

  • der Träger ist als eine Trägerplatte mit einer Anzahl Durchlasskanälen ausgebildet.
  • dem Träger ist eine von der Spinnflüssigkeit zu durchströmende Filterplatte vorgeordnet.
  • der Verdrängungskörper ist als eine die Trägerplatte durchgreifende Schraubverbindung ausgebildet.
  • der oberhalb der Trägerplatte befindliche Teil des Verdrängungskörpers ist als ein zugespitzter Kopf einer Mutter ausgebildet.
  • der Spinndüsenplatte ist innerhalb des Spinnbades eine Anströmvorrichtung gegenübergestellt, vermittels der während des Spinnvorganges Koagulationsflüssigkeit in den mittleren Bereich ohne Düsenöffnungen einbringbar ist.
  • die Anströmvorrichtung ist als ein Rohr ausgebildet, welches an seiner Mantelfläche Austrittsöffnungen für Koagulationsflüssigkeit aufweist.
In summary, the following developments of the invention are provided:
  • the carrier is formed as a carrier plate with a number of passage channels.
  • The support is preceded by a filter plate to be flowed through by the spinning liquid.
  • the displacement body is formed as a carrier plate by cross-bolt.
  • the part of the displacer located above the support plate is formed as a tapered head of a nut.
  • the spinneret plate is opposed within the spinning bath, a flow device, by means of which the coagulation during the spinning process in the central region without nozzle openings can be introduced.
  • the onflow device is designed as a tube which has outlet openings for coagulation liquid on its lateral surface.

Des Weiteren erfolgt die Erläuterung von Ausführungsbeispielen anhand der Zeichnungen.Furthermore, the explanation of exemplary embodiments with reference to the drawings.

Figur 1 zeigt eine Nassspinndüse NSD mit einem nach unten offen gestalteten Gehäuse G nach Art einer Glocke. Das Gehäuse G weist im oberen Bereich einen Zufluss Z für die zu verspinnende Spinnlösung auf. Im Unteren Bereich ist in die Öffnung des Gehäuses G eine Trägerplatte TP eingesetzt, welche in einer ringförmigen Zone eine Vielzahl von Durchflusskanälen DK aufweist. Oberhalb der Trägerplatte TP ist eine Filterplatte FP aufgesetzt, welche korrespondierend zu dem Bereich der Durchflusskanäle DK durchlässig gestaltet ist. FIG. 1 shows a wet spinning nozzle NSD with a downwardly designed housing G in the manner of a bell. The housing G has in the upper region an inflow Z for the spinning solution to be spun. In the lower area, a support plate TP is inserted into the opening of the housing G, which has a plurality of flow channels DK in an annular zone. Above the support plate TP, a filter plate FP is placed, which is designed to be permeable corresponding to the region of the flow channels DK.

Die Trägerplatte TP sowie die aufliegende Filterplatte FP weisen je eine Öffnung auf, durch welche eine Schraubverbindung MK, SG greift, welche im oberen Teil als ein zugespitzter Mutterkopf MK mit Außensechskant und unten als eine Schraube SG mit Gewindeschaft ausgebildet ist, wobei der Gewindeschaft der Schraube SG die Trägerplatte TP und die aufliegende Filterplatte FP durchgreift. Das untere Ende der Schraube SG ist eben ausgeführt und weist einen Innensechskant auf. Die Schraubverbindung MK, SG und insbesondere der zugespitzte Mutterkopf MK bilden den Verdrängungskörper VK, durch welchen die zu verspinnende Lösung im Inneren des Gehäuses G symmetrisch in Richtung der Düsenöffnungen DÖ verteilt wird.The support plate TP and the overlying filter plate FP each have an opening through which a screw MK, SG engages, which is formed in the upper part as a tapered mother head MK with external hexagon and below as a screw SG with threaded shank, wherein the threaded shank of the screw SG passes through the support plate TP and the overlying filter plate FP. The lower end of the screw SG is flat and has a hexagon socket. The screw connection MK, SG and in particular the pointed mother head MK form the displacement body VK, through which the solution to be spinned in the interior of the housing G is distributed symmetrically in the direction of the nozzle openings DÖ.

In die Gehäuseöffnung ist zusammen mit der Träger- und der Filterplatte TP, FP eine topfbodenförmige Spinndüsenplatte SP eingesetzt, welche einen umgelegten Rand aufweist. Träger-, Filter- und Spinndüsenplatte TP, FP, SP sind zusammen mit einem auf den unteren Gehäusebereich aufgedrehten Gewindering GR am Gehäuse G befestigt.In the housing opening, a cup bottom-shaped spinneret plate SP is used together with the carrier and the filter plate TP, FP, which has a folded edge. Carrier, filter and spinneret plate TP, FP, SP are together with one on the bottom Housing area twisted threaded ring GR attached to the housing G.

Die Spinndüsenplatte SP weist einen ringförmigen Bereich mit Düsenöffnungen DÖ auf. Der mittlere Bereich MB der Spinndüsenplatte SP weist keine Öffnungen DÖ auf und liegt mit Kraft an der unteren Fläche des Kopfes der Schraube SG des Verdrängungskörpers an. Die Kraft, mit der die Spinndüsenplatte SP am Schraubenkopf SG anliegt, ist durch die Formgebung der Spinndüsenplatte SP vorgegeben und derart bemessen, dass auch bei Beaufschlagung der Gehäusekammer mit der zu verspinnenden Lösung unter Druck die Spinndüsenplatte SP nicht den Kontakt zum Schraubenkopf SG verliert. Vorzugsweise ist zwischen Schraubenkopf SG und Spinndüsenplatte SP eine Elastische Dichtung gelegt.The spinneret plate SP has an annular region with nozzle openings DÖ. The central region MB of the spinneret plate SP has no openings DÖ and is applied to the lower surface of the head of the screw SG of the displacer with force. The force with which the spinneret plate SP bears against the screw head SG is predetermined by the shape of the spinneret plate SP and dimensioned such that even when the housing chamber is pressurized with the solution to be spun under pressure, the spinneret plate SP does not lose contact with the screw head SG. Preferably, an elastic seal is placed between the screw head SG and spinneret plate SP.

Figur 2 zeigt eine Draufsicht auf die Spinndüsenplatte SP mit den in dem ringförmigen Bereich angeordneten Düsenöffnungen DÖ. Der Außendurchmesser des ringförmigen Düsenbereiches ist 85mm, der Innendurchmesser 30mm. Bei dem gezeigten Ausführungsbeispiel beträgt der Düsendurchmesser 0.06mm und der Lochabstand 0.643mm, was 15.6 Lochreihen pro cm ergibt. Insgesamt befinden sich 12009 Düsen in der ringförmigen Zone, welche eine Fläche von 49,7cm2 einnimmt. Dies ergibt eine Düsendichte von 242 Düsen pro cm2. Die Innenfläche ohne Düsenöffnungen beträgt so lediglich 12,8 % der Gesamtfläche. FIG. 2 shows a plan view of the spinneret plate SP with arranged in the annular region nozzle openings DÖ. The outer diameter of the annular nozzle area is 85mm, the inner diameter is 30mm. In the embodiment shown, the nozzle diameter is 0.06mm and the hole spacing is 0.643mm, giving 15.6 rows of holes per cm. In total there are 12009 nozzles in the annular zone, which occupies an area of 49.7 cm 2 . This gives a nozzle density of 242 nozzles per cm 2 . The inner surface without nozzle openings is thus only 12.8% of the total area.

Figur 3 zeigt eine Weiterbildung der Erfindung, bei der im Spinnbad der Spinndüsenplatte SP eine Anströmvorrichtung AV in Form eines Rohres gegenübergestellt ist. Das Rohr AV befindet sich in dem mittleren Bereich der Spinndüsenplatte SP, welcher keine Düsenöffnungen DÖ aufweist, in dem also keine Filamente gesponnen werden. Das der Spinndüsenplatte SP gegenüberliegende Ende des Rohres AV ist geschlossen, der Endbereich des Rohres AV weist Austrittsöffnungen AÖ für Koagulationsflüssigkeit auf, wobei die Austrittsöffnungen AÖ so orientiert sind, dass die Flüssigkeit im Wesentlichen parallel zur Fläche der Spinndüsenplatte SP verläuft, die Filamente also senkrecht angeströmt werden. Dadurch wird erreicht, dass die Filamente, die in der inneren Zone des ringförmigen Düsenbereiches ersponnen werden, ebenso in Kontakt mit frischer Koagulationsflüssigkeit kommen wie die Filamente am äußeren Rand der Spinndüsenplatte SP. FIG. 3 shows a development of the invention, wherein in the spinning bath of the spinneret plate SP is confronted with a flow device AV in the form of a tube. The tube AV is located in the central region of the spinneret plate SP, which has no nozzle openings DÖ, in which no filaments are spun. The spinneret plate SP opposite end of the tube AV is closed, the end region of the tube AV has outlet openings AÖ for coagulation liquid, wherein the outlet openings AÖ are oriented such that the liquid runs substantially parallel to the surface of the spinneret plate SP, ie the filaments are flowed perpendicularly. It is thereby achieved that the filaments spun in the inner zone of the annular nozzle area also come into contact with fresh coagulating liquid as do the filaments on the outer edge of the spinneret plate SP.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

NSDNSD
NassspinndüseNassspinndüse
GG
Gehäusecasing
ZZ
Zufuhrsupply
TPTP
Trägerplattesupport plate
DKDK
DurchlasskanäleVent channels
FPFP
Filterplattefilter plate
VKVK
Verdrängungskörperdisplacer
MKMK
Mutterkopfnut head
SGSG
Schraubescrew
GRGR
Gewinderingthreaded ring
SPSP
SpinndüsenplatteSpinneret
DÖDÖ
Düsenöffnungnozzle opening
MBMB
mittlerer Bereich Spinndüsenplatte SPmiddle section spinneret plate SP
AVAV
Anströmvorrichtung, RohrFlow device, pipe
AÖAO
Ausströmöffnungoutflow

Claims (7)

  1. A wet spinning spinneret comprising
    a housing which, together with a spinneret plate mounted to the underside thereof, forms a chamber adapted to be supplied with a spinning solution, the spinneret plate having nozzle openings in at least an annular region, and
    a displacing member arranged inside the chamber above the spinneret plate, which member directs the spinning solution towards the annular zone,
    characterized in that
    the displacing member (VK) is attached at a support (TP) arranged upstream of the spinneret plate (SP), seen in the flow direction of the spinning liquid.
  2. The wet spinning spinneret of claim 1, characterized in that the support is designed as a support plate (TP) with a plurality of flow channels (DK).
  3. The wet spinning spinneret of claim 1 or 2, characterized in that a filter plate (FP) to be flown through by the spinning liquid is arranged upstream of the support (TP).
  4. The wet spinning spinneret of claim 1, 2 or 3, characterized in that the displacing member (VK) is designed as a screw connection (MK, SG) passing through the support plate (TP).
  5. The wet spinning spinneret of claim 4, characterized in that the part of the displacing member (VK) above the support plate (TP) is formed as a pointed head of a nut (MK).
  6. The wet spinning spinneret of one of the preceding claims and flow deflection device, characterized in that the flow deflection device (AV) is arranged opposite the spinneret plate (SP) in the spinning bath, by which device coagulation liquid can be introduced into the central portion (MB) of the wet spinning spinneret, which has no nozzle openings (DO), during the spinning process.
  7. The wet spinning spinneret and flow deflection device of claim 6, characterized in that the flow deflection device (AV) is shaped as a tube having outlet openings (AÖ) in its shell surface for the coagulation liquid.
EP12713750.3A 2011-04-19 2012-04-13 Spinneret for wet spinning Not-in-force EP2699717B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011018223A DE102011018223A1 (en) 2011-04-19 2011-04-19 Spinneret for wet spinning
PCT/EP2012/056801 WO2012143298A1 (en) 2011-04-19 2012-04-13 Spinneret for wet spinning

Publications (2)

Publication Number Publication Date
EP2699717A1 EP2699717A1 (en) 2014-02-26
EP2699717B1 true EP2699717B1 (en) 2016-03-02

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EP12713750.3A Not-in-force EP2699717B1 (en) 2011-04-19 2012-04-13 Spinneret for wet spinning

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US (1) US9033692B2 (en)
EP (1) EP2699717B1 (en)
CN (1) CN103492619B (en)
DE (1) DE102011018223A1 (en)
TW (1) TWI547605B (en)
WO (1) WO2012143298A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2018012944A (en) 2016-04-25 2019-03-11 Cytec Ind Inc Spinneret assembly for spinning polymeric fibers.
CN108547003A (en) * 2018-06-07 2018-09-18 杭州海畅节能科技有限公司 Terylene spinning component
CN113089112A (en) * 2019-12-23 2021-07-09 连津格股份公司 Spinning machine for producing cellulose fibres and method for operating the same

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923970A (en) * 1960-02-09 genovese
GB402450A (en) 1932-06-02 1933-12-04 British Celanese Apparatus for the production of artificial filaments and like products
US2051861A (en) 1934-10-04 1936-08-25 Baker & Co Inc Spinneret
GB1050191A (en) 1962-08-06
US3221088A (en) * 1964-11-02 1965-11-30 Eastman Kodak Co Process and apparatus for orienting yarn
GB1171600A (en) * 1967-08-25 1969-11-19 Bemberg Ag Spinning Head for the Manufacture of Synthetic Filaments from Two Differently Composed Spinning Liquids
DE7528673U (en) 1975-09-11 1976-01-08 Hoechst Ag, 6000 Frankfurt WET SPINNING DEVICE
JPS5766110A (en) 1980-10-13 1982-04-22 Tanaka Kikinzoku Kogyo Kk Unit for wet spinning
DD215343A1 (en) * 1983-04-29 1984-11-07 Schwarza Chemiefaser SPINNING DEVICE, PREFERABLY FOR INDIVIDUALS OR COMPONENT FOR GROUP DUMP, FOR SOLIDING SPINNING
DE19544662A1 (en) * 1995-11-30 1997-06-05 Rieter Automatik Gmbh Melt spinning spinneret - has structured blower jet outlet directed at extruded filaments and induction heating at the spinneret packet
WO1999051798A1 (en) * 1998-04-07 1999-10-14 Toray Industries, Inc. Melt spinning spinning pack and synthetic fiber manufaacturing method
DE19935327A1 (en) 1999-07-28 2001-02-01 Bayer Faser Gmbh Spinneret for production of elastane fibres by wet spinning process has holes arranged closely together in distinct areas separated by strips with no holes which are at least 2mm. in width
DE102006017212A1 (en) * 2006-04-12 2007-10-18 Rieter Automatik Gmbh Coathanger jet hotmelt unit for production of microfibers textile fleece has internal spacers set transverse to direction of hotmelt flow

Also Published As

Publication number Publication date
TWI547605B (en) 2016-09-01
DE102011018223A1 (en) 2012-10-25
CN103492619B (en) 2016-08-17
CN103492619A (en) 2014-01-01
EP2699717A1 (en) 2014-02-26
TW201243118A (en) 2012-11-01
US9033692B2 (en) 2015-05-19
WO2012143298A1 (en) 2012-10-26
US20140044820A1 (en) 2014-02-13

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