EP0746641A1 - Dispositif permettant la mise en oeuvre d'un procede de filage au sec et/ou au mouille - Google Patents

Dispositif permettant la mise en oeuvre d'un procede de filage au sec et/ou au mouille

Info

Publication number
EP0746641A1
EP0746641A1 EP95940073A EP95940073A EP0746641A1 EP 0746641 A1 EP0746641 A1 EP 0746641A1 EP 95940073 A EP95940073 A EP 95940073A EP 95940073 A EP95940073 A EP 95940073A EP 0746641 A1 EP0746641 A1 EP 0746641A1
Authority
EP
European Patent Office
Prior art keywords
spinning
container
bath liquid
spinneret
filaments
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.)
Granted
Application number
EP95940073A
Other languages
German (de)
English (en)
Other versions
EP0746641B1 (fr
Inventor
Stefan Zikeli
Ernst Rauch
Friedrich Ecker
Franz Schwenninger
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.)
Lenzing AG
Original Assignee
Lenzing AG
Chemiefaser Lenzing AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lenzing AG, Chemiefaser Lenzing AG filed Critical Lenzing AG
Priority to EP97119866A priority Critical patent/EP0832995A3/fr
Publication of EP0746641A1 publication Critical patent/EP0746641A1/fr
Application granted granted Critical
Publication of EP0746641B1 publication Critical patent/EP0746641B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof

Definitions

  • the invention relates to a device for carrying out a dry / wet spinning process.
  • the technique of dry / wet spinning is very generally that spinning mass by a molding tool, e.g. a spinneret, in a medium which does not precipitate for the spinning mass, e.g. Air or an inert gas is extruded, wherein if a spinneret is used, filaments are formed which are stretched in this medium and then passed into a spinning bath liquid (coagulation bath) in which the filaments coagulate.
  • a molding tool e.g. a spinneret
  • a medium which does not precipitate for the spinning mass e.g. Air or an inert gas
  • a method and a device for producing cellulosic fibers is known, according to which a solution of cellulose in a tertiary amine oxide is shaped in the warm state and the shaped solution is introduced into the precipitation bath through a gaseous medium (air) to precipitate the cellulose contained, the warm, shaped solution being cooled before being introduced into the precipitation bath.
  • the cooling is carried out immediately after molding and preferably consists of blowing the cellulosic molding horizontally with air.
  • the method according to the invention allows the cellulose solution to be spun with a high thread density without the spun threads sticking together after exiting the spinneret.
  • DD-A-218 121 also relates to a dry / wet spinning process for producing cellulosic fibers from cellulose solutions in tertiary amine oxides. According to this method, too, the cellulose solution is spun in an air gap, that is the distance between the spinneret and the surface of the spinning bath liquid, and is drawn into an aqueous precipitation bath.
  • DD-A-218 121 mentions that the air gap has no adverse consequences for the Spinning security can be shortened if a polyalkylene ether is added to the cellulose solution before spinning. A small air gap is advantageous because the risk of the freshly extruded filaments sticking together is reduced.
  • EP-A-0 574 870 describes a dry / wet spinning process for processing solutions of cellulose in tertiary amine oxides and points out the advantage of a small air gap.
  • this spinning process it is possible, according to the description in the description of this patent application, to spin with a small air gap and with a high number of spinning bores per unit area.
  • the filaments should not stick together during spinning. It is recommended that the spun filaments come into contact with the spinning bath liquid in a spinning funnel. Spinning bath liquid is passed through this spinning funnel in cocurrent with the filaments.
  • the axis of the spinning funnel is substantially perpendicular to the plane of the spinneret, and the flow of the spinning bath liquid is directed from top to bottom, the flow generally being caused by the free fall of the spinning bath liquid.
  • the warping or stretching of the freshly extruded filaments is achieved in accordance with EP-A-0 574 870 in such a way that the filaments are essentially accelerated to their withdrawal speed by the spinning bath liquid flowing through the spinning funnel.
  • This previously known spinning device has the disadvantage that the funnel tube of the spinning funnel, due to its relatively narrow diameter, places an upper limit on the filament bundle to be carried out with regard to its overall cross section, which is additionally set unsatisfactorily low for large-scale implementation of the method. According to the experience of the applicant, this is the case with a diameter of 6 mm, as exemplified in EP-A-0 574 870, is only possible to pass a bundle of filaments consisting of a maximum of 100 filaments through the funnel, since spinning bath liquid must also be transported through the funnel. This in turn means that when using such a spinning funnel, only one spinneret with a maximum of 100 spinning holes can be used.
  • the funnel tube must be correspondingly larger, which in turn means that much more spinning bath liquid flows off and has to be circulated. This high throughput of spin bath liquid leads to turbulent flows in the spin bath, which disrupts the dry / wet spinning process.
  • GB-A-1,017,855 describes a device for dry / wet spinning of synthetic polymers.
  • the use of a spinning funnel is recommended, through which spinning bath liquid is allowed to flow in cocurrent with the extruded fibers.
  • the spinneret is about 0.5 cm above the surface of the spin bath.
  • the object of the invention is to provide a container for holding spinning bath liquid, which makes it possible to carry out a dry / wet spinning process with high spinning safety without using a spinning funnel, and at the same time:
  • the device according to the invention is intended to allow spinnerets of various sizes to be used without the device having to be converted, ie that the device can be easily adapted to the spinneret used in each case.
  • the container according to the invention for holding spinning bath liquid for carrying out a dry / wet spinning process, in which process a spinning mass is extruded through a spinneret with a high spinning hole density into a gaseous medium, a family of filaments being formed which is distorted by the gaseous medium are introduced into the spinning bath liquid, characterized in that a deflection member for bundling and deflecting the filaments is provided in the container, which can be pivoted in the vertical plane.
  • the filament sheet is therefore not bundled by a spinning funnel, as described in EP-A - 0 574 870, but by a deflecting member.
  • the angle of warpage is the angle that the outermost filament or edge filament of a filament array leaving the spinneret forms with the perpendicular to the plane of the spinneret.
  • a preferred embodiment of the container according to the invention is that the deflecting member has a substantially cylindrical body which is delimited by two substantially annular flanks, the planes formed by the flanks preferably forming an angle with one another of between 1 ° and 30 °. This embodiment is particularly advantageous for the start of spinning, as will be explained below.
  • the container according to the invention is particularly suitable for dry / wet spinning formable solutions of cellulose in an aqueous tertiary amine oxide.
  • the invention further relates to a method for dry / wet spinning by extrusion of a spinning mass through a spinneret with a high spinning hole diameter into a gaseous medium, a family of filaments being formed which are introduced into a spinning bath liquid with delay by the gaseous medium, bundled and over one Guide element are guided, which is characterized in that the guide element is at such a distance from the spinneret that the angle between the outermost filaments of the filament array and the perpendicular to the spinneret does not exceed 20 °.
  • the spinning bath liquid is not conducted in cocurrent with the filaments, and the delay is therefore not carried out with the kinetic energy of the spinning bath liquid. o created as detailed below.
  • a moldable solution of cellulose in an aqueous tertiary amine oxide is preferably used as the dope.
  • FIG. 1 shows a general illustration of the dry / wet spinning process
  • FIG. 2 schematically shows a perspective illustration of an embodiment of the container according to the invention
  • FIG. 3 shows that shown in FIG Deflector shows.
  • 1 denotes a container for holding spinning bath liquid, the surface of the spinning bath liquid being indicated by la.
  • spinning mass is extruded through the spinneret 7 and the extruded filaments are drawn off via the air gap LS into the spinning bath liquid in which they coagulate.
  • the coagulated filaments are deflected at the deflecting member 2 and drawn off obliquely upwards.
  • the distance of the underside of the spinneret 7 from the surface la of the spinning bath liquid is defined as the air gap LS.
  • the draft angle defined above is denoted by ⁇ .
  • the reference numeral 1 ' denotes a trough-shaped container for holding spinning bath liquid.
  • the spinning bath liquid is fed in via line 3 at the lower end of the container 1 'and flows upwards. If the container is filled, spinning bath liquid passes over the overflow edge 5 into the drain collecting cup 6, as a result of which a constantly high liquid level in the container 1 'is maintained.
  • the spinning bath liquid that has overflowed into the drain collecting cup 6 speed is discharged via the discharge line 4 and fed back to the container 1 'according to the invention via the line 3 via an external pump system (not shown).
  • the discharge line 4 is expediently provided with a sieve in order to filter off any filament residues that may occur.
  • a baffle plate 10 is provided in the container 1 'and is fastened parallel to the wall of the container (not shown).
  • Reference number 7 denotes a spinneret, the emerging filaments being indicated by dashed lines.
  • Reference number 2 ' denotes a deflection element, via which the filament sheet is bundled and drawn off obliquely upwards (not shown).
  • the deflection element 2 ' is attached to a rotatable axis 9 via an arm 8.
  • the axis 9 is laterally installed in the wall of the container 1 'and is naturally sealed so that no spin bath liquid can escape.
  • the deflection element 2 ' can be pivoted in the container. This turning can be accomplished, for example, by means of an electric motor 11.
  • FIG. 2 shows the lower end position of the deflection element 2 ', in which the distance from the surface of the spinning bath liquid is greatest.
  • the upper end position of the deflecting member 2 ' in which the distance to the surface of the spinning bath liquid is the smallest, is shown in broken lines.
  • the maximum angle is pivoted around which the deflection member 65 ".
  • the container 1 ' is expediently equipped with a lifting device (not shown) with which the height of the container 1' and thus the width of the air gap LS, that is the distance from the surface of the spin bath liquid to the stationary spinneret 7 ', can be adjusted.
  • the container according to the invention allows the draft angle ⁇ to be kept as small as possible regardless of the width of the spinneret 7 '. If a wide spinneret is used, as shown in FIG. 2, the draft angle ⁇ can be reduced by moving the arm 8 downwards and the spinning security can thus be increased. If the spinnerets are less wide, the deflection element 2 'can be positioned closer to the surface of the spinning bath liquid.
  • Another advantage of the container according to the invention is that the start of spinning can be carried out more easily.
  • the deflection element is brought into the upper end position and the air gap LS is enlarged by moving the entire container downwards.
  • the filaments emerging from the spinneret 7 'are immersed in the spinning bath which is relatively distant, are guided over the deflecting element 2' and are bundled and held on the deflecting element by the inclined flanks 2'b and 2'c (see FIG. 3).
  • the bundling is facilitated if the deflecting member is set in the upper end position so that the area with the larger flank spacing faces the spinneret 7 '.
  • the bundle of filaments is pulled off diagonally upwards.
  • the deflection element 2 ' can be lowered immediately into the spinning bath by rotating the axis 9, as a result of which the draft angle is reduced and, at the same time, the bundling of the filament sheet is somewhat increased due to the inclined flanks, since the deflection element 2' is caused by the rotation Spinneret 7 'now turns to an area which has a smaller flank spacing, whereby the bundling is increased.
  • the deflected filament bundle is a downstream take-off device (not shown) and set the desired titer by warping in the air gap LS by selecting a certain withdrawal speed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Inorganic Fibers (AREA)

Abstract

L'invention concerne une cuve destinée à contenir un liquide de bain de filage, pour mettre en oeuvre un procédé de filage au sec et/ou au mouillé, selon lequel une matière de filage est extrudée dans un milieu gazeux à travers une filière à haute densité d'orifices d'extrusion, ce qui produit un faisceau de filaments qui sont introduits dans le liquide du bain de filage tout en étant étirés à travers le milieu gazeux. Ce procédé se caractérise en ce qu'il est prévu, dans la cuve, un élément déflecteur permettant de mettre en faisceau et d'étirer les filaments, qui peut pivoter dans un plan vertical.
EP95940073A 1994-12-22 1995-12-19 Dispositif permettant la mise en oeuvre d'un procede de filage au sec et/ou au mouille Expired - Lifetime EP0746641B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97119866A EP0832995A3 (fr) 1994-12-22 1995-12-19 Dispositif permettant la mise en oeuvre d'un procédé de filage au sec/mouillé

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2391/94 1994-12-22
AT0239194A ATA239194A (de) 1994-12-22 1994-12-22 Vorrichtung zur durchführung eines trocken-/nassspinnverfahrens
PCT/AT1995/000244 WO1996019598A2 (fr) 1994-12-22 1995-12-19 Dispositif permettant la mise en ×uvre d'un procede de filage au sec et/ou au mouille

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP97119866A Division EP0832995A3 (fr) 1994-12-22 1995-12-19 Dispositif permettant la mise en oeuvre d'un procédé de filage au sec/mouillé

Publications (2)

Publication Number Publication Date
EP0746641A1 true EP0746641A1 (fr) 1996-12-11
EP0746641B1 EP0746641B1 (fr) 1998-05-27

Family

ID=3533492

Family Applications (4)

Application Number Title Priority Date Filing Date
EP98117527A Expired - Lifetime EP0887444B1 (fr) 1994-12-22 1995-11-27 Dispositif de filage
EP95937712A Expired - Lifetime EP0746642B1 (fr) 1994-12-22 1995-11-27 Dispositif de filage
EP95940073A Expired - Lifetime EP0746641B1 (fr) 1994-12-22 1995-12-19 Dispositif permettant la mise en oeuvre d'un procede de filage au sec et/ou au mouille
EP97119866A Withdrawn EP0832995A3 (fr) 1994-12-22 1995-12-19 Dispositif permettant la mise en oeuvre d'un procédé de filage au sec/mouillé

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP98117527A Expired - Lifetime EP0887444B1 (fr) 1994-12-22 1995-11-27 Dispositif de filage
EP95937712A Expired - Lifetime EP0746642B1 (fr) 1994-12-22 1995-11-27 Dispositif de filage

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP97119866A Withdrawn EP0832995A3 (fr) 1994-12-22 1995-12-19 Dispositif permettant la mise en oeuvre d'un procédé de filage au sec/mouillé

Country Status (36)

Country Link
EP (4) EP0887444B1 (fr)
JP (2) JPH09509704A (fr)
KR (1) KR100430918B1 (fr)
CN (3) CN1068910C (fr)
AR (1) AR000362A1 (fr)
AT (5) ATA239194A (fr)
AU (2) AU703733B2 (fr)
BG (1) BG61849B1 (fr)
BR (2) BR9506857A (fr)
CA (2) CA2183627C (fr)
CO (1) CO4480065A1 (fr)
CR (1) CR5234A (fr)
CZ (2) CZ288127B6 (fr)
DE (6) DE19581437D2 (fr)
FI (2) FI963270A (fr)
GB (2) GB2301309A (fr)
HK (1) HK1010401A1 (fr)
HR (1) HRP950610B1 (fr)
HU (1) HU220328B (fr)
IL (1) IL116292A (fr)
MA (1) MA23749A1 (fr)
MX (1) MX9603562A (fr)
MY (1) MY115450A (fr)
NO (2) NO310034B1 (fr)
NZ (1) NZ295314A (fr)
PE (1) PE4397A1 (fr)
PL (1) PL181190B1 (fr)
RO (1) RO114811B1 (fr)
RU (1) RU2132418C1 (fr)
SK (1) SK284686B6 (fr)
TN (1) TNSN95134A1 (fr)
TR (1) TR199501659A2 (fr)
TW (1) TW293040B (fr)
UY (1) UY24131A1 (fr)
WO (2) WO1996020300A2 (fr)
ZA (1) ZA9510655B (fr)

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AT405531B (de) 1997-06-17 1999-09-27 Chemiefaser Lenzing Ag Verfahren zur herstellung cellulosischer fasern
DE19954152C2 (de) * 1999-11-10 2001-08-09 Thueringisches Inst Textil Verfahren und Vorrichtung zur Herstellung von Cellulosefasern und Cellulosefilamentgarnen
DE10043297B4 (de) * 2000-09-02 2005-12-08 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. Verfahren zur Herstellung von Cellulosefasern und Cellulosefilamentgarnen
DE10060879B4 (de) * 2000-12-07 2005-08-04 Zimmer Ag Spinntrichtervorrichtung
DE10062083B4 (de) * 2000-12-13 2008-04-10 Ostthüringische Materialprüfgesellschaft Für Textil Und Kunststoffe Mbh Verfahren zur Herstellung von Celluloseendlosformkörpern
DE10206089A1 (de) 2002-02-13 2002-08-14 Zimmer Ag Bersteinsatz
US7887728B2 (en) 2004-06-25 2011-02-15 Toray Industries, Inc. Spinning pack for dry-wet spinning, diverting guide for fiber bundle, and apparatus and method for producing fiber bundle
CN1282773C (zh) * 2005-05-30 2006-11-01 武汉大学 二步凝固浴法制备再生纤维素纤维的方法
DE102005040000B4 (de) * 2005-08-23 2010-04-01 Lenzing Ag Mehrfachspinndüsenanordnung und Verfahren mit Absaugung und Beblasung
AT504144B1 (de) * 2006-08-17 2013-04-15 Chemiefaser Lenzing Ag Verfahren zur herstellung von zellulosefasern aus einer lösung von zellulose in einem tertiären aminoxid und vorrichtung zur durchführung des verfahrens
RU2541284C1 (ru) * 2011-06-15 2015-02-10 Трютцшлер Нонвоувенз Гмбх Корыто прядильной ванны
KR101339137B1 (ko) * 2011-12-22 2013-12-09 최정호 생분해성 원사 제조장치
CN103668504A (zh) * 2013-12-27 2014-03-26 吴江市华宏纺织丝绸有限公司 一种集丝架
CN104099672A (zh) * 2014-07-14 2014-10-15 苏州盛达织带有限公司 真空喷丝装置
CN104611776A (zh) * 2015-01-17 2015-05-13 海兴材料科技有限公司 复合纺丝外环吹冷却及中心上油装置
CN108291344B (zh) * 2015-11-10 2022-02-25 营养与生物科学美国4公司 非织造葡聚糖网
JP2020100902A (ja) * 2017-03-17 2020-07-02 Ｓｐｉｂｅｒ株式会社 乾湿式紡糸装置
EP3470557A1 (fr) 2017-10-12 2019-04-17 Lenzing Aktiengesellschaft Dispositif de filage et procédé destiné à rattacher le fil à un dispositif de filage
EP3505659A1 (fr) 2018-08-30 2019-07-03 Aurotec GmbH Procédé et dispositif de filage des filaments à déviation
EP3674454A1 (fr) * 2018-12-28 2020-07-01 Lenzing Aktiengesellschaft Procédé de filament de cellulose

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Also Published As

Publication number Publication date
MX9603562A (es) 1997-03-29
AU4167596A (en) 1996-07-10
EP0746642B1 (fr) 1999-04-07
FI963269A0 (fi) 1996-08-21
CZ288127B6 (cs) 2001-04-11
DE59510336D1 (de) 2002-09-26
ATA902195A (de) 2000-06-15
CN1132972C (zh) 2003-12-31
CZ230596A3 (en) 1996-11-13
HRP950610B1 (en) 2001-02-28
HU9602257D0 (en) 1996-10-28
ATE222614T1 (de) 2002-09-15
SK284686B6 (sk) 2005-09-08
ATA239194A (de) 1996-02-15
WO1996020300A2 (fr) 1996-07-04
EP0746641B1 (fr) 1998-05-27
GB2301309A (en) 1996-12-04
DE59505595D1 (de) 1999-05-12
CA2183627A1 (fr) 1996-07-04
CN1145100A (zh) 1997-03-12
AU3863295A (en) 1996-07-19
FI963270A0 (fi) 1996-08-21
KR100430918B1 (ko) 2004-07-19
IL116292A (en) 1999-07-14
NO963480D0 (no) 1996-08-21
AU695715B2 (en) 1998-08-20
FI963269A (fi) 1996-08-21
RU2132418C1 (ru) 1999-06-27
ZA9510655B (en) 1996-07-09
AU703733B2 (en) 1999-04-01
IL116292A0 (en) 1996-03-31
TNSN95134A1 (fr) 1996-02-06
DE19581437D2 (de) 1997-08-21
CA2183230A1 (fr) 1996-06-27
TR199501659A3 (fr) 1996-07-21
CO4480065A1 (es) 1997-07-09
CR5234A (es) 2001-11-02
UY24131A1 (es) 1996-05-17
BG100793A (en) 1997-09-30
ATE178665T1 (de) 1999-04-15
GB9617170D0 (en) 1996-09-25
MY115450A (en) 2003-06-30
PL315840A1 (en) 1996-12-09
NO963481L (no) 1996-10-22
WO1996019598A2 (fr) 1996-06-27
CZ291490B6 (cs) 2003-03-12
NO310034B1 (no) 2001-05-07
WO1996020300A3 (fr) 1996-09-06
BR9506858A (pt) 1997-09-23
DE59502340D1 (de) 1998-07-02
DE19581437B4 (de) 2004-04-29
RO114811B1 (ro) 1999-07-30
ATE166677T1 (de) 1998-06-15
GB2301060A (en) 1996-11-27
NO963481D0 (no) 1996-08-21
GB9617016D0 (en) 1996-09-25
EP0832995A3 (fr) 1998-07-15
EP0887444A1 (fr) 1998-12-30
EP0832995A2 (fr) 1998-04-01
JPH09509703A (ja) 1997-09-30
BR9506857A (pt) 1997-09-23
CA2183627C (fr) 2006-09-19
HRP950610A2 (en) 1997-06-30
CN1146218A (zh) 1997-03-26
TR199501659A2 (tr) 1996-07-21
WO1996019598A3 (fr) 1996-08-22
FI963270A (fi) 1996-08-21
TW293040B (fr) 1996-12-11
BG61849B1 (bg) 1998-07-31
HU220328B (hu) 2001-12-28
EP0887444B1 (fr) 2002-08-21
JPH09509704A (ja) 1997-09-30
CN1068910C (zh) 2001-07-25
SK104496A3 (en) 1997-01-08
AR000362A1 (es) 1997-06-18
NO963480L (no) 1996-10-21
NZ295314A (en) 1998-10-28
HK1010401A1 (en) 1999-06-17
DE19581487D2 (de) 1997-01-16
EP0746642A1 (fr) 1996-12-11
PE4397A1 (es) 1997-02-19
HUT78008A (hu) 1999-05-28
CN1309197A (zh) 2001-08-22
MA23749A1 (fr) 1996-07-01
PL181190B1 (pl) 2001-06-29

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