EP0823945B1 - Procede de production de fibres cellulosiques - Google Patents

Procede de production de fibres cellulosiques Download PDF

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Publication number
EP0823945B1
EP0823945B1 EP97903143A EP97903143A EP0823945B1 EP 0823945 B1 EP0823945 B1 EP 0823945B1 EP 97903143 A EP97903143 A EP 97903143A EP 97903143 A EP97903143 A EP 97903143A EP 0823945 B1 EP0823945 B1 EP 0823945B1
Authority
EP
European Patent Office
Prior art keywords
filaments
drawn
extruded
spinneret
cellulose
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.)
Revoked
Application number
EP97903143A
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German (de)
English (en)
Other versions
EP0823945A1 (fr
Inventor
Hartmut Rüf
Christoph Schrempf
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3489811&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0823945(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lenzing AG, Chemiefaser Lenzing AG filed Critical Lenzing AG
Publication of EP0823945A1 publication Critical patent/EP0823945A1/fr
Application granted granted Critical
Publication of EP0823945B1 publication Critical patent/EP0823945B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • 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 present invention relates to a method for Manufacture of cellulosic fibers. With this procedure a solution of cellulose in a tertiary amine oxide Spinning holes of a spinneret extrude, creating filaments be extruded, the extruded filaments through a Air gap, a precipitation bath and a fume cupboard with which the filaments are drawn, and the drawn filaments to cellulosic fibers processed further.
  • WO 92/14871 describes a method for producing a Fiber with reduced tendency to fibrillation. This is achieved by all the baths with which the fiber is dried before the first drying comes into contact with a maximum pH of 8.5.
  • WO 92/07124 also describes a method for Production of a fiber with reduced tendency to fibrillation, according to which the non-dried fiber with a cationic Polymer is treated.
  • a polymer is a Polymer with imidazole and azetidine groups called.
  • an emulsifiable polymer such as e.g. Polyethylene or polyvinyl acetate, or one Crosslinking with glyoxal.
  • Cellulosic filaments are known from WO 96/18760 a strength of 50 to 80 cN / tex, an elongation at break of 6 up to 25% and a specific tear time of at least 300 s / tex exhibit. These filaments are used in the manufacture of a Exposed to tension in the range of 5 to 93 cN. It will disclosed that these fibers have a low tendency to fibrillation exhibit.
  • the present invention has in particular the object to provide a method with which fibers with improved properties are produced in which the so-called work capacity, that is the mathematical product from the fiber strength (conditioned) and the elongation (conditioned) is improved.
  • the term includes "Processing" all steps on the filaments be carried out, including the transport of the filaments, after they hit the trigger's first stop have happened.
  • the drawn filaments are expediently used during cut for further processing and then washed.
  • the length of the route, on which removes the filaments from the take-off spinneret are fed an influence on the fiber properties insofar as the fiber properties are all the better the shorter this distance is.
  • a preferred embodiment The inventive method is that the length this distance is a maximum of 12 m, in particular a maximum of 1 m.
  • the friction of the fibers against each other during washing processes or Finishing operations in the wet state was carried out by the following test simulated: 8 fibers were mixed with 4 ml of water in a 20 ml Sample vials given and in one for 9 hours Laboratory shaker type RO-10 from Gerhardt, Bonn (FRG) shaken at level 12. The fibrillation behavior of the fibers was then examined under the microscope by counting the number of fibrils per 0.276 mm fiber length.
  • the loop strength was checked by using two fibers formed a loop and this loop a tensile test has been subjected. Only those were used for averaging Fibers are used that tear at the loop.
  • a vibroscope is a Lenzing AG titre measuring device non-destructive titer determination using the vibration method and a vibrodyne, which is a device for tensile tests Single fibers with constant deformation speed, used.
  • the standard climate was air of 20 ° C and a relative Humidity of 65% taken.
  • the filaments were passed through the air gap into the precipitation bath and led over a godet, with which a train on the Filaments was exerted, causing them to stretch in the air gap were. After passing the godet, the filaments were immediately cut and only then by washing out the amine oxide, Finishing and drying processed. The filaments were processed without tension.
  • Table 1 The textile data of obtained fibers are shown in Table 1.
  • the procedure was analogous to Example 1, except that the Filaments after passing the godet, i.e. the first Breakpoint, not cut immediately, but another Galette were fed, which was 2.2 meters from the first Galette was removed.
  • the speed of the second godet was set so that the filament cable between the first and second godets under a tension of 11.6 cN / tex stand.
  • the column “Fibrils” shows the average number of fibrils over a fiber length of 276 ⁇ m .
  • Working capacity is the mathematical product of strength (cond.) And elongation (cond.).
  • Table 1 shows that the voltage-free Processing the fibers a product with improved Properties. Above all, these properties the lower number of fibrils and the increased work capacity to emphasize.
  • a spinning mass of the composition of Example 1 was at 120 ° C through a die with 1 spin hole, dtex extruded a diameter of 100 ⁇ m to having filaments having an individual of 1.8.
  • a stretching load affects the tendency to fibrillation by loading the filaments with different weights, the loading time also being varied. The results are shown in Table 2.

Landscapes

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

Claims (7)

  1. Procédé de production de fibres cellulosiques, caractérisé par la combinaison des dispositions selon lesquelles
    une solution de cellulose dans un aminoxyde tertiaire est extrudée au travers des trous d'une filière, de sorte que des filaments sont extrudés,
    les filaments extrudés sont amenés à passer dans un interstice d'air, un bain de précipitation et sur un dispositif de tirage avec lequel les filaments sont étirés,
    les filaments étirés sont transformés en fibres cellulosiques, où
    les filaments étirés sont exposés pendant la transformation à une sollicitation de traction dans la direction longitudinale d'au plus 5,5 cN/tex.
  2. Procédé selon la revendication 1, caractérisé en ce que les filaments étirés sont coupés puis lavés pendant la transformation.
  3. Procédé selon l'une des revendications 1 et 2, caractérisé en ce que la longueur de la distance sur laquelle les filaments sont amenés par la filière au dispositif de tirage est de 12 m au maximum.
  4. Procédé selon la revendication 3, caractérisé en ce que la longueur de la distance sur laquelle les filaments sont amenés par la filière au dispositif de tirage est de 1 m au maximum.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que, pendant la transformation et avant une coupe éventuellement prévue, les filaments étirés sont amenés à passer sur plusieurs galettes qui sont disposées en série, où la vitesse de chaque galette est inférieure à celle de la galette immédiatement précédente.
  6. Procédé de production de fibres cellulosiques, caractérisé par la combinaison des dispositions selon lesquelles
    une solution de cellulose dans un aminoxyde tertiaire est extrudée au travers des trous d'une filière, de sorte que des filaments sont extrudés,
    les filaments extrudés sont amenés à passer dans un interstice d'air, un bain de précipitation et sur un dispositif de tirage avec lequel les filaments sont étirés,
    les filaments étirés sont transformés en fibres cellulosiques séchées, où
    la longueur de la distance sur laquelle les filaments sont amenés par la filière au dispositif de tirage est de 12 m au maximum,
    et, pendant la transformation et avant une coupe éventuellement prévue, les filaments étirés sont amenés à passer sur plusieurs galettes qui sont disposées en série, où la vitesse de chaque galette est inférieure à celle de la galette immédiatement précédente.
  7. Procédé selon la revendication 6, caractérisé en ce que la longueur de la distance sur laquelle les filaments sont amenés par la filière au dispositif de tirage est de 1 m au maximum.
EP97903143A 1996-03-04 1997-03-03 Procede de production de fibres cellulosiques Revoked EP0823945B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT0040796A AT404032B (de) 1996-03-04 1996-03-04 Verfahren zur herstellung cellulosischer fasern
AT40796 1996-03-04
AT407/96 1996-03-04
PCT/AT1997/000041 WO1997033020A1 (fr) 1996-03-04 1997-03-03 Procede de production de fibres cellulosiques

Publications (2)

Publication Number Publication Date
EP0823945A1 EP0823945A1 (fr) 1998-02-18
EP0823945B1 true EP0823945B1 (fr) 2001-10-31

Family

ID=3489811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97903143A Revoked EP0823945B1 (fr) 1996-03-04 1997-03-03 Procede de production de fibres cellulosiques

Country Status (13)

Country Link
US (1) US5863478A (fr)
EP (1) EP0823945B1 (fr)
JP (1) JPH11504995A (fr)
CN (1) CN1072284C (fr)
AT (2) AT404032B (fr)
AU (1) AU711895B2 (fr)
BR (1) BR9702110A (fr)
CA (1) CA2219110A1 (fr)
DE (1) DE59705152D1 (fr)
ID (1) ID16121A (fr)
NO (1) NO310779B1 (fr)
TW (1) TW336259B (fr)
WO (1) WO1997033020A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3467161A1 (fr) 2017-10-06 2019-04-10 Lenzing Aktiengesellschaft Procédé de production d'un filament de cellulose de type lyocell
EP3674455A1 (fr) 2018-12-28 2020-07-01 Lenzing Aktiengesellschaft Procédé d'élimination de liquide dans des fils ou des fibres de filaments de cellulose
EP3674454A1 (fr) 2018-12-28 2020-07-01 Lenzing Aktiengesellschaft Procédé de filament de cellulose
WO2021078768A1 (fr) 2019-10-23 2021-04-29 Lenzing Aktiengesellschaft Surface de rouleau

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6235392B1 (en) * 1996-08-23 2001-05-22 Weyerhaeuser Company Lyocell fibers and process for their preparation
US6221487B1 (en) 1996-08-23 2001-04-24 The Weyerhauser Company Lyocell fibers having enhanced CV properties
CN1061106C (zh) * 1997-12-09 2001-01-24 宜宾丝丽雅集团有限公司 溶剂法纤维素纤维制造方法
DE10206089A1 (de) 2002-02-13 2002-08-14 Zimmer Ag Bersteinsatz
AT6807U1 (de) * 2004-01-13 2004-04-26 Chemiefaser Lenzing Ag Cellulosische faser der gattung lyocell
DE102005024433A1 (de) * 2005-05-24 2006-02-16 Zimmer Ag Verfahren und Vorrichtung zum Schneiden von NMMO-haltigen Spinnfäden sowie für Zellulose-Stapelfasern
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
ES2402442T3 (es) * 2008-03-27 2013-05-03 Cordenka Gmbh & Co. Kg Cuerpos celulósicos conformados
US20130025761A1 (en) 2010-04-15 2013-01-31 Bridgestone Corporation Pneumatic tire
EP2683858B1 (fr) * 2011-03-08 2017-09-13 SAPPI Netherlands Services B.V. Procédé de filage à sec de cellulose neutre et modifiée au plan anionique
TWI667378B (zh) * 2014-01-03 2019-08-01 奧地利商蘭精股份有限公司 纖維素纖維
EP3505659A1 (fr) 2018-08-30 2019-07-03 Aurotec GmbH Procédé et dispositif de filage des filaments à déviation
DE102019108908A1 (de) * 2019-04-04 2020-10-08 Deutsche Institute Für Textil- Und Faserforschung Denkendorf Spannbetonkörper, Verfahren zu dessen Herstellung und dessen Verwendung

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT307951B (de) * 1971-02-18 1973-06-12 Deutsch Friedrich Verfahren zur Herstellung eines Stahlbeschlagteiles für Schier, insbesondere einer Stahlkante und nach diesem Verfahren hergestellter Stahlbeschlagteil
US4416698A (en) * 1977-07-26 1983-11-22 Akzona Incorporated Shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent and a process for making the article
US4246221A (en) * 1979-03-02 1981-01-20 Akzona Incorporated Process for shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent
DD218121A1 (de) * 1983-10-17 1985-01-30 Chemiefaser Komb Schwarza Wilh Verfahren zur herstellung von formkoerpern aus celluloseloesungen
GB9022175D0 (en) * 1990-10-12 1990-11-28 Courtaulds Plc Treatment of fibres
AT395582B (de) * 1991-01-09 1993-01-25 Brunn Betonwerk Verfahren zur herstellung von betonpflastersteinen oder -platten mit der besonderen eigenschaft, kohlenwasserstoffe zu adsorbieren und diese auch durch wasser nicht auswaschbar einzulagern und langsam oekologisch abzubauen
AT395862B (de) * 1991-01-09 1993-03-25 Chemiefaser Lenzing Ag Verfahren zur herstellung eines cellulosischen formkoerpers
GB9103297D0 (en) * 1991-02-15 1991-04-03 Courtaulds Plc Fibre production method
DE4308524C1 (de) * 1992-06-16 1994-09-22 Thueringisches Inst Textil Verfahren zur Herstellung von Cellulosefasern und -filamenten nach dem Trocken-Naßextrusionsverfahren
DE4219658C3 (de) * 1992-06-16 2001-06-13 Ostthueringische Materialpruef Verfahren zur Herstellung von Cellulosefasern -filamenten und -folien nach dem Trocken-Naßextrusionsverfahren
US5417909A (en) * 1992-06-16 1995-05-23 Thuringisches Institut Fur Textil- Und Kunststoff-Forschung E.V. Process for manufacturing molded articles of cellulose
TW256860B (fr) * 1993-05-24 1995-09-11 Courtaulds Fibres Holdings Ltd
AT401271B (de) * 1993-07-08 1996-07-25 Chemiefaser Lenzing Ag Verfahren zur herstellung von cellulosefasern
AUPM788194A0 (en) * 1994-09-05 1994-09-29 Sterling, Robert A building panel
AT401063B (de) * 1994-09-05 1996-06-25 Chemiefaser Lenzing Ag Verfahren zur herstellung von cellulosischen formkörpern
DE4444140A1 (de) * 1994-12-12 1996-06-13 Akzo Nobel Nv Lösungsmittelgesponnene cellulosische Filamente

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GÖTZE, K: Chemiefasern, S. 847-851, Springer, Berlin *
KOSLOWSKI, H: Chemiefaser-Lexikon, S. 77, 1997, Duetscher Fachverlag, Frankfurt/M *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3467161A1 (fr) 2017-10-06 2019-04-10 Lenzing Aktiengesellschaft Procédé de production d'un filament de cellulose de type lyocell
WO2019068922A1 (fr) 2017-10-06 2019-04-11 Lenzing Aktiengesellschaft Procédé de production de filament de cellulose de type lyocell
US11414786B2 (en) 2017-10-06 2022-08-16 Lenzing Aktiengesellschaft Cellulose filament process
EP3674455A1 (fr) 2018-12-28 2020-07-01 Lenzing Aktiengesellschaft Procédé d'élimination de liquide dans des fils ou des fibres de filaments de cellulose
EP3674454A1 (fr) 2018-12-28 2020-07-01 Lenzing Aktiengesellschaft Procédé de filament de cellulose
WO2020136108A1 (fr) 2018-12-28 2020-07-02 Lenzing Aktiengesellschaft Procédé de production de filament de cellulose
WO2020136109A1 (fr) 2018-12-28 2020-07-02 Lenzing Aktiengesellschaft Procédé d'élimination du liquide présent dans des fils ou des fibres de filaments de cellulose
US11898272B2 (en) 2018-12-28 2024-02-13 Lenzing Aktiengesellschaft Cellulose filament process
WO2021078768A1 (fr) 2019-10-23 2021-04-29 Lenzing Aktiengesellschaft Surface de rouleau

Also Published As

Publication number Publication date
CA2219110A1 (fr) 1997-09-12
AU711895B2 (en) 1999-10-21
US5863478A (en) 1999-01-26
ATA40796A (de) 1997-12-15
NO974847D0 (no) 1997-10-21
NO974847L (no) 1997-10-21
JPH11504995A (ja) 1999-05-11
CN1072284C (zh) 2001-10-03
NO310779B1 (no) 2001-08-27
BR9702110A (pt) 1999-01-12
EP0823945A1 (fr) 1998-02-18
TW336259B (en) 1998-07-11
WO1997033020A1 (fr) 1997-09-12
DE59705152D1 (de) 2001-12-06
AT404032B (de) 1998-07-27
CN1189860A (zh) 1998-08-05
AU1759497A (en) 1997-09-22
ID16121A (id) 1997-09-04
ATE207981T1 (de) 2001-11-15

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