EP0823945B1 - Verfahren zur herstellung cellulosischer fasern - Google Patents
Verfahren zur herstellung cellulosischer fasern Download PDFInfo
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229920003043 Cellulose fiber Polymers 0.000 title claims abstract description 12
- 229920002678 cellulose Polymers 0.000 claims abstract description 15
- 239000001913 cellulose Substances 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 12
- 150000003512 tertiary amines Chemical class 0.000 claims description 6
- 230000001112 coagulating effect Effects 0.000 claims 2
- 238000009987 spinning Methods 0.000 abstract description 14
- 238000001556 precipitation Methods 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 description 43
- 206010061592 cardiac fibrillation Diseases 0.000 description 11
- 230000002600 fibrillogenic effect Effects 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- 229920000433 Lyocell Polymers 0.000 description 5
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 230000001143 conditioned effect Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- -1 Polyethylene Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241001620634 Roger Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000002393 azetidinyl group Chemical group 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001212 derivatisation Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
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)
Description
- eine Lösung von Cellulose in einem tertiären Aminoxid durch Spinnlöcher einer Spinndüse extrudiert wird, wodurch Filamente extrudiert werden,
- die extrudierten Filamente durch einen Luftspalt, ein Fällbad und über eine Abzugsvorrichtung geführt werden, mit welcher die Filamente verstreckt werden,
- die verstreckten Filamente zu cellulosischen Fasern weiterverarbeitet werden, wobei
- die verstreckten Filamente während der Weiterverarbeitung einer Zugbeanspruchung in Längsrichtung von nicht mehr als 5,5 cN/tex ausgesetzt werden.
- eine Lösung von Cellulose in einem tertiären Aminoxid durch Spinnlöcher einer Spinndüse extrudiert wird, wodurch Filamente extrudiert werden,
- die extrudierten Filamente durch einen Luftspalt, ein Fällbad und über eine Abzugsvorrichtung geführt werden, mit welcher die Filamente verstreckt werden,
- die verstreckten Filamente zu getrockneten cellulosischen Fasern weiterverarbeitet werden, wobei
- die Länge der Strecke, auf welcher die Filamente von der Spinndüse der Abzugsvorrichtung zugeführt werden, maximal 12 m, insbesondere maximal 1 m beträgt,
- und die verstreckten Filamente während der Weiterverarbeitung und vor einem gegebenenfalls vorgesehenen Schnitt über mehrere Galetten zu führt werden, die in Serie geschaltet sind, wobei die Geschwindigkeit jeder Galette kleiner ist als diejenige der unmittelbar vorangegangenen Galette.
| Beispiel 1 | Beispiel 2 | |
| Spannung am Kabel (cN/tex) | 0 | 11,6 |
| Festigkeit kond. (cN/tex) | 37,5 | 34,3 |
| Dehnung kond. (%) | 15,0 | 10,8 |
| Schlingenfestigkeit (cN/tex) | 20,9 | 18,8 |
| Schlingendehnung (%) | 5,8 | 4,1 |
| Fibrillen | 14 | 29 |
| Arbeitsvermögen | 562 | 370 |
| Versuch Nr. | Belastung (cN/tex) | Zeit (s) | Fibrillenanzahl |
| A | 2,2 | 10 | 1 |
| B | 2,2 | 600 | 4 |
| C | 5,6 | 10 | 3 |
| D | 5,6 | 600 | 8,9 |
| E | 10,9 | 10 | 7 |
| F | 10,9 | 600 | 12 |
| Versuch 1 | Versuch 2 | Versuch 3 | |
| Strecke Düse/Galette (m) | 12 | 25 | 48 |
| Titer (dtex) | 1,30 | 1,39 | 1,29 |
| Festigkeit kond. (cN/tex) | 34,8 | 32,7 | 34,5 |
| Dehnung kond. (%) | 11,8 | 11,6 | 11,1 |
| Fibrillen | 38 | 38 | 41 |
| Arbeitsvermögen | 403 | 379 | 383 |
Claims (7)
- Verfahren zur Herstellung cellulosischer Fasern, gekennzeichnet durch die Kombination der Maßnahmen, daßeine Lösung von Cellulose in einem tertiären Aminoxid durch Spinnlöcher einer Spinndüse extrudiert wird, wodurch Filamente extrudiert werden,die extrudierten Filamente durch einen Luftspalt, ein Fällbad und über eine Abzugsvorrichtung geführt werden, mit welcher die Filamente verstreckt werden,die verstreckten Filamente zu cellulosischen Fasern weiterverarbeitet werden, wobeidie verstreckten Filamente während der Weiterverarbeitung einer Zugbeanspruchung in Längsrichtung von nicht mehr als 5,5 cN/tex ausgesetzt werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die verstreckten Filamente während der Weiterverarbeitung geschnitten und anschließend gewaschen werden.
- Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Länge der Strecke, auf welcher die Filamente von der Spinndüse der Abzugsvorrichtung zugeführt werden, maximal 12 m beträgt.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Länge der Strecke, auf welcher die Filamente von der Spinndüse der Abzugsvorrichtung zugeführt werden, maximal 1 m beträgt.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die verstreckten Filamente während der Weiterverarbeitung und vor einem gegebenenfalls vorgesehenen Schnitt über mehrere Galetten geführt werden, die in Serie geschaltet sind, wobei die Geschwindigkeit jeder Galette kleiner ist als diejenige der unmittelbar vorangegangenen Galette.
- Verfahren zur Herstellung cellulosischer Fasern, gekennzeichnet durch die Kombination der Maßnahmen, daßeine Lösung von Cellulose in einem tertiären Aminoxid durch Spinnlöcher einer Spinndüse extrudiert wird, wodurch Filamente extrudiert werden,die extrudierten Filamente durch einen Luftspalt, ein Fällbad und über eine Abzugsvorrichtung geführt werden, mit welcher die Filamente verstreckt werden,die verstreckten Filamente zu getrockneten cellulosischen Fasern weiterverarbeitet werden, wobeidie Länge der Strecke, auf welcher die Filamente von der Spinndüse der Abzugsvorrichtung zugeführt werden, maximal 12 m beträgt,und die verstreckten Filamente während der Weiterverarbeitung und vor einem gegebenenfalls vorgesehenen Schnitt über mehrere Galetten geführt werden, die in Serie geschaltet sind, wobei die Geschwindigkeit jeder Galette kleiner ist als diejenige der unmittelbar vorangegangenen Galette.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die Länge der Strecke, auf welcher die Filamente von der Spinndüse der Abzugsvorrichtung zugeführt werden, maximal 1 m beträgt.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT407/96 | 1996-03-04 | ||
| AT40796 | 1996-03-04 | ||
| AT0040796A AT404032B (de) | 1996-03-04 | 1996-03-04 | Verfahren zur herstellung cellulosischer fasern |
| PCT/AT1997/000041 WO1997033020A1 (de) | 1996-03-04 | 1997-03-03 | Verfahren zur herstellung cellulosischer fasern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0823945A1 EP0823945A1 (de) | 1998-02-18 |
| EP0823945B1 true EP0823945B1 (de) | 2001-10-31 |
Family
ID=3489811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97903143A Revoked EP0823945B1 (de) | 1996-03-04 | 1997-03-03 | Verfahren zur herstellung cellulosischer fasern |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US5863478A (de) |
| EP (1) | EP0823945B1 (de) |
| JP (1) | JPH11504995A (de) |
| CN (1) | CN1072284C (de) |
| AT (2) | AT404032B (de) |
| AU (1) | AU711895B2 (de) |
| BR (1) | BR9702110A (de) |
| CA (1) | CA2219110A1 (de) |
| DE (1) | DE59705152D1 (de) |
| ID (1) | ID16121A (de) |
| NO (1) | NO310779B1 (de) |
| TW (1) | TW336259B (de) |
| WO (1) | WO1997033020A1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3467161A1 (de) | 2017-10-06 | 2019-04-10 | Lenzing Aktiengesellschaft | Verfahren zur herstellung eines cellulosischen filaments der gattung lyocell |
| EP3674455A1 (de) | 2018-12-28 | 2020-07-01 | Lenzing Aktiengesellschaft | Verfahren zur flüssigkeitsentfernung aus cellulosefilamenten, -fäden oder -fasern |
| EP3674454A1 (de) | 2018-12-28 | 2020-07-01 | Lenzing Aktiengesellschaft | Cellulosefilamentverfahren |
| WO2021078768A1 (en) | 2019-10-23 | 2021-04-29 | Lenzing Aktiengesellschaft | Roller surface |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6221487B1 (en) | 1996-08-23 | 2001-04-24 | The Weyerhauser Company | Lyocell fibers having enhanced CV properties |
| US6235392B1 (en) | 1996-08-23 | 2001-05-22 | Weyerhaeuser Company | Lyocell fibers and process for their preparation |
| 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 |
| DE10200405A1 (de) | 2002-01-08 | 2002-08-01 | Zimmer Ag | Spinnvorrichtung und -verfahren mit Kühlbeblasung |
| DE10204381A1 (de) | 2002-01-28 | 2003-08-07 | Zimmer Ag | Ergonomische Spinnanlage |
| 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 |
| EP2268857B1 (de) * | 2008-03-27 | 2012-09-26 | Cordenka GmbH & Co. KG | Cellulosische formkörper |
| EP2559570B1 (de) | 2010-04-15 | 2017-03-08 | Bridgestone Corporation | Luftreifen |
| PT2683858T (pt) * | 2011-03-08 | 2017-12-06 | Sappi Netherlands Services Bv | Processo de fiação de celulose neutra e modificada no plano aniónico |
| 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 (de) | 2018-08-30 | 2019-07-03 | Aurotec GmbH | Verfahren und vorrichtung zum filamentspinnen mit umlenkung |
| DE102019108908A1 (de) * | 2019-04-04 | 2020-10-08 | Deutsche Institute Für Textil- Und Faserforschung Denkendorf | Spannbetonkörper, Verfahren zu dessen Herstellung und dessen Verwendung |
| DE102023002303A1 (de) * | 2023-06-07 | 2024-12-12 | Oerlikon Textile Gmbh & Co. Kg | Verfahren zum Herstellen eines gekräuselten Kompositfadens |
| EP4650498A1 (de) | 2024-05-17 | 2025-11-19 | Aurotec GmbH | Flüssigkeitskontaktvorrichtung |
| EP4650499A1 (de) | 2024-05-17 | 2025-11-19 | Aurotec GmbH | Aufwickelvorrichtung und aufwickelverfahren |
Family Cites Families (16)
| 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 |
| 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 |
| 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 |
| 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 |
| AT395862B (de) * | 1991-01-09 | 1993-03-25 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines cellulosischen formkoerpers |
| 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 |
| GB9103297D0 (en) * | 1991-02-15 | 1991-04-03 | Courtaulds Plc | Fibre production method |
| 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 |
| DE4308524C1 (de) * | 1992-06-16 | 1994-09-22 | Thueringisches Inst Textil | Verfahren zur Herstellung von Cellulosefasern und -filamenten nach dem Trocken-Naßextrusionsverfahren |
| TW256860B (de) * | 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 |
-
1996
- 1996-03-04 AT AT0040796A patent/AT404032B/de not_active IP Right Cessation
-
1997
- 1997-02-26 TW TW086102333A patent/TW336259B/zh not_active IP Right Cessation
- 1997-03-03 DE DE59705152T patent/DE59705152D1/de not_active Expired - Fee Related
- 1997-03-03 CA CA002219110A patent/CA2219110A1/en not_active Abandoned
- 1997-03-03 AU AU17594/97A patent/AU711895B2/en not_active Ceased
- 1997-03-03 JP JP9531245A patent/JPH11504995A/ja not_active Ceased
- 1997-03-03 WO PCT/AT1997/000041 patent/WO1997033020A1/de not_active Ceased
- 1997-03-03 US US08/930,132 patent/US5863478A/en not_active Expired - Fee Related
- 1997-03-03 BR BR9702110A patent/BR9702110A/pt not_active IP Right Cessation
- 1997-03-03 EP EP97903143A patent/EP0823945B1/de not_active Revoked
- 1997-03-03 AT AT97903143T patent/ATE207981T1/de not_active IP Right Cessation
- 1997-03-03 CN CN97190439A patent/CN1072284C/zh not_active Expired - Lifetime
- 1997-03-04 ID IDP970666A patent/ID16121A/id unknown
- 1997-10-21 NO NO19974847A patent/NO310779B1/no not_active IP Right Cessation
Non-Patent Citations (2)
| Title |
|---|
| GÖTZE, K: Chemiefasern, S. 847-851, Springer, Berlin * |
| KOSLOWSKI, H: Chemiefaser-Lexikon, S. 77, 1997, Duetscher Fachverlag, Frankfurt/M * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3467161A1 (de) | 2017-10-06 | 2019-04-10 | Lenzing Aktiengesellschaft | Verfahren zur herstellung eines cellulosischen filaments der gattung lyocell |
| WO2019068922A1 (en) | 2017-10-06 | 2019-04-11 | Lenzing Aktiengesellschaft | PROCESS FOR PRODUCING LYOCELL TYPE CELLULOSE FILAMENT |
| US11414786B2 (en) | 2017-10-06 | 2022-08-16 | Lenzing Aktiengesellschaft | Cellulose filament process |
| EP3674455A1 (de) | 2018-12-28 | 2020-07-01 | Lenzing Aktiengesellschaft | Verfahren zur flüssigkeitsentfernung aus cellulosefilamenten, -fäden oder -fasern |
| EP3674454A1 (de) | 2018-12-28 | 2020-07-01 | Lenzing Aktiengesellschaft | Cellulosefilamentverfahren |
| WO2020136109A1 (en) | 2018-12-28 | 2020-07-02 | Lenzing Aktiengesellschaft | Process for liquid removal from cellulose filaments yarns or fibers |
| WO2020136108A1 (en) | 2018-12-28 | 2020-07-02 | Lenzing Aktiengesellschaft | Cellulose filament process |
| US11898272B2 (en) | 2018-12-28 | 2024-02-13 | Lenzing Aktiengesellschaft | Cellulose filament process |
| WO2021078768A1 (en) | 2019-10-23 | 2021-04-29 | Lenzing Aktiengesellschaft | Roller surface |
Also Published As
| Publication number | Publication date |
|---|---|
| AU1759497A (en) | 1997-09-22 |
| ATE207981T1 (de) | 2001-11-15 |
| BR9702110A (pt) | 1999-01-12 |
| NO974847D0 (no) | 1997-10-21 |
| CN1072284C (zh) | 2001-10-03 |
| JPH11504995A (ja) | 1999-05-11 |
| US5863478A (en) | 1999-01-26 |
| AT404032B (de) | 1998-07-27 |
| DE59705152D1 (de) | 2001-12-06 |
| NO974847L (no) | 1997-10-21 |
| NO310779B1 (no) | 2001-08-27 |
| ID16121A (id) | 1997-09-04 |
| WO1997033020A1 (de) | 1997-09-12 |
| CA2219110A1 (en) | 1997-09-12 |
| CN1189860A (zh) | 1998-08-05 |
| ATA40796A (de) | 1997-12-15 |
| EP0823945A1 (de) | 1998-02-18 |
| TW336259B (en) | 1998-07-11 |
| AU711895B2 (en) | 1999-10-21 |
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