EP0797696B1 - Procede de fabrication de fibres cellulosiques - Google Patents

Procede de fabrication de fibres cellulosiques Download PDF

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Publication number
EP0797696B1
EP0797696B1 EP96932374A EP96932374A EP0797696B1 EP 0797696 B1 EP0797696 B1 EP 0797696B1 EP 96932374 A EP96932374 A EP 96932374A EP 96932374 A EP96932374 A EP 96932374A EP 0797696 B1 EP0797696 B1 EP 0797696B1
Authority
EP
European Patent Office
Prior art keywords
squeezing
filaments
fibers
water
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.)
Expired - Lifetime
Application number
EP96932374A
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German (de)
English (en)
Other versions
EP0797696B2 (fr
EP0797696A1 (fr
Inventor
Markus Eibl
Dieter Eichinger
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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Application filed by Lenzing AG, Chemiefaser Lenzing AG filed Critical Lenzing AG
Priority to SI9630026T priority Critical patent/SI0797696T1/xx
Publication of EP0797696A1 publication Critical patent/EP0797696A1/fr
Application granted granted Critical
Publication of EP0797696B1 publication Critical patent/EP0797696B1/fr
Publication of EP0797696B2 publication Critical patent/EP0797696B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • D01D5/26—Formation of staple fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the invention relates to a method for manufacturing cellulosic fibers by the amine oxide process, and cellulosic fibers, in particular cellulosic staple fibers.
  • amine oxide primarily used N-methylmorpholine-N-oxide (NMMO).
  • NMMO N-methylmorpholine-N-oxide
  • Other Amine oxides are e.g. in EP-A - 0 553 070.
  • a method of making moldable cellulose solutions is e.g. known from EP-A-0 356 419.
  • the production cellulosic shaped body using tertiary amine oxides is commonly referred to as the amine oxide process.
  • Fibers that have crimp are made of different ones Reasons for processing fibers, in particular Staple fibers, advantageous. This is how it works, for example Carding of the fibers is better because of some adhesion the fibers to each other is necessary so that a card sliver can be made at all. Has a crimped fiber higher tape adhesion than a non-crimped fiber, whereby the carding speed can be increased.
  • DE-C - 868 042 describes a process for finishing synthetic fibers linear high polymers with amide groups in the chain, especially polyamides and Polyurethanes, whereby tangled fiber layers by pressing together at elevated temperature and in the presence of swelling agents are subjected to such a high pressure that the Superficially deform the fibers at the crossing points.
  • a method is known from WO 94/28220 and WO 94/27903 known with which Lyocell fibers in a mechanical way Ripple can be conferred.
  • the freshly made filaments in dew form first passed through a series of wash baths to the solvent to remove. Then the dew is dried at about 165 ° C and in the dry state in a tubular device in which the filament rope crumples and onto it Way a kind of ripple is generated.
  • the crimped fiber treated with hot dry steam and then cut into staple fibers.
  • the invention has for its object a method for Making a Lyocell fiber available too make which lighter to yarns and fabrics can be processed further than the conventional one Lyocell fiber.
  • the fiber should not go through a mechanical crimp according to WO 94/28220 or WO 94/27903 can be manufactured.
  • the fiber should not be with either Spinning nozzles are produced, the spinning holes one have non-round cross-sectional shape.
  • the invention manufactured Lyocell fiber should rather with conventional Spinnerets, whose spinning holes have a round cross-section have produced.
  • pinch points are for the purpose of present description and claims also kinks, Twists and other changes in the cross-sectional shape of the Understand filaments and fibers.
  • the invention is based on the knowledge that an after Filament produced in swollen amine oxide process Condition of the cross-sectional shape changed by squeezing and that this bruise after drying is retained if with a sufficiently large pressure is squeezed. In this way, cellulosic fibers are produced, the cross-sectional shape of the Pinch points are not circular but oval, for example is deformed. The pinch points are under the microscope too recognizable as indentations, widenings or kinks.
  • the size of the pressure to be applied when squeezing depends on naturally depending on several factors, e.g. from fiber titer, the degree of swelling and the extent of the desired Cross-sectional changes.
  • the inventors of the present Invention have found that to achieve the required cross-sectional change required pressure Preliminary tests can be easily determined.
  • the squeezing of the fiber can be achieved by the swollen filaments through an appropriate molding tool, for example, a plate press, the Surface of the plate press through elevations and depressions is structured to keep the swollen filaments in Expose in the longitudinal direction to a different high pressure and in this way the filaments to different degrees deform.
  • an appropriate molding tool for example, a plate press
  • the Surface of the plate press through elevations and depressions is structured to keep the swollen filaments in Expose in the longitudinal direction to a different high pressure and in this way the filaments to different degrees deform.
  • the swollen filaments can also be squeezed by the filaments are passed over a roller and with a Counter roll, the surface of which is structured accordingly, the pressure to squeeze is applied to the filaments.
  • the squeezing is preferably carried out so that per Millimeters of filament length at least three, in particular there are at least six pinch points.
  • Fibers can be carded more easily because of the pinch points apparently give the fibers some adhesion to each other, so that a card sliver can be manufactured more easily.
  • the Fibers produced according to the invention have a higher one Tape adhesion as a conventional Lyocell fiber continuous round cross-section. This enables the Carding speed can be increased.
  • a preferred embodiment of the invention The method is characterized in that the above in step (B) water-containing, swollen filaments obtained before the Press cut.
  • the method is characterized in that from the cut, water-containing, swollen filaments before Squeezing a fleece is formed in which the cut filaments are statistically oriented, and that the fleece is pressed. It has been shown that in this If the pressing surface is not structured needs because of the imprint of an irregular surface necessary, different high pressure is created, that the fibers due to their statistical orientation lie on top of each other, which means that when pressing on them Place where the fibers lie on top of each other naturally higher pressure is exerted than in other places. This leads to a different cross-sectional deformation.
  • the pressing can in this embodiment of the inventive method in the context of the Viscose process known, usual pressing of Wash water can be made from a staple fiber fleece. This drainage is usually done with one or more Roll pairs made through which the staple fiber fleece is guided on a screen belt. It is crucial, however, that with the roller pair (s) a sufficiently high pressure on the Nonwoven is exercised, not only the water content reduced, but also the cross-sectional shape of the cut, swollen filaments sufficiently changed.
  • the invention also relates to a cellulosic fiber, in particular a cellulosic staple fiber, which after the The inventive method can be produced.
  • the Fiber according to the invention is characterized in that the caused cross-section change of the fiber obtained remains, i.e. after carding or after yarn production does not disappear. This facilitates further processing the Lyocell fiber according to the invention.
  • the invention further comprises yarns, fabrics, non-wovens, Knitted fabrics and knitted fabrics which are characterized in that they contain the fibers of the invention.
  • This spinnable solution was prepared in accordance with that in WO 93/19230 described method spun into filaments, one Nozzle with circular spinning holes was used.
  • the Filaments were drawn into an air gap after warping aqueous precipitation bath in which the cellulose coagulated.
  • the water-containing filaments obtained, which are in swollen condition and were hydroplastic cut to stack lengths of 4 cm.
  • the cut filaments were in a mixer in water slurried, and those cut up in the water Filaments were placed on a screen belt on which a fleece of cut fibers was formed, the Fibers were oriented in all directions.
  • the screen belt was passed through a pair of rollers, a pressure of 10 6 Pa being exerted on the nonwoven for a time of about 0.1 seconds.
  • the fleece was then washed and passed through a further pair of rollers, with which a pressure of 10 6 Pa was again exerted on the fleece.
  • the staple fibers obtained were then dried.
  • Yarns were produced from the fibers obtained and the Adhesive lengths of the tapes measured in accordance with DIN 53834, Part 1.
  • the Fibers produced according to the invention showed a comparison greater bond length than not manufactured according to the invention Fibers with an essentially circular cross-section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Nonwoven Fabrics (AREA)
  • Woven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (10)

  1. Procédé pour la fabrication de fibres de cellulose, lequel procédé comporte les étapes ci-dessous:
    (A) mise en solution d'un matériau contenant de la cellulose dans un oxyde d'amine tertiaire aqueux, pour obtenir une solution de cellulose apte à être filée;
    (B) filage de la solution de cellulose et passage à travers un bain aqueux de précipitation, pour obtenir des filaments gonflés contenant de l'eau;
    (C) en des emplacements très différents, écrasement des filaments gonflés contenant de l'eau, de manière à obtenir par millimètre de longueur de filament en moyenne au moins deux emplacements écrasés, et
    (D) séchage des filaments écrasés pour obtenir des fibres de cellulose,
    l'écrasement s'effectuant sous une pression qui suffit pour que les emplacements écrasés créés sur le filament se maintiennent sur les fibres séchées, et soient visibles en tant que modifications de couleur lorsqu'on les examine sous lumière polarisée linéairement.
  2. Procédé selon la revendication 1, caractérisé en ce que l'écrasement est réalisé de manière à obtenir en moyenne au moins trois emplacements écrasés par millimètre de longueur de filament.
  3. Procédé selon la revendication 1, caractérisé en ce que l'écrasement est réalisé de manière à obtenir en moyenne au moins six emplacements écrasés par millimètre de longueur de filament.
  4. Procédé pour la fabrication de fibres de cellulose selon l'une des revendications 1 à 3, caractérisé en ce que les filaments gonflés contenant de l'eau obtenus à l'étape (B) sont découpés avant l'écrasement.
  5. Procédé pour la fabrication de fibres de cellulose selon la revendication 4, caractérisé en ce qu'avant l'écrasement, on forme un feutre à partir des filaments gonflés contenant de l'eau et découpés, feutre dans lequel les filaments découpés sont orientés de manière statistique, et en ce que le feutre est comprimé.
  6. Fibre de cellulose obtenue par un procédé selon l'une des revendications 1 à 3.
  7. Empilement de fibres de cellulose obtenu selon l'une des revendications 4 ou 5.
  8. Fil caractérisé en ce qu'il contient des fibres de cellulose selon l'une des revendications 6 et 7.
  9. Tissu caractérisé en ce qu'il contient des fibres de cellulose selon l'une des revendications 6 et 7.
  10. Produit non tissé, tricoté ou à mailles, caractérisé en ce qu'il contient des fibres de cellulose selon l'une des revendications 6 et 7.
EP96932374A 1995-10-13 1996-10-08 Procede de fabrication de fibres cellulosiques Expired - Lifetime EP0797696B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630026T SI0797696T1 (en) 1995-10-13 1996-10-08 Process for producing cellulose fibres

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT17039/59 1995-10-13
AT0170395A AT402741B (de) 1995-10-13 1995-10-13 Verfahren zur herstellung cellulosischer fasern
PCT/AT1996/000188 WO1997014829A1 (fr) 1995-10-13 1996-10-08 Procede de fabrication de fibres cellulosiques

Publications (3)

Publication Number Publication Date
EP0797696A1 EP0797696A1 (fr) 1997-10-01
EP0797696B1 true EP0797696B1 (fr) 1998-07-29
EP0797696B2 EP0797696B2 (fr) 2007-10-24

Family

ID=3519158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96932374A Expired - Lifetime EP0797696B2 (fr) 1995-10-13 1996-10-08 Procede de fabrication de fibres cellulosiques

Country Status (28)

Country Link
US (1) US6117378A (fr)
EP (1) EP0797696B2 (fr)
JP (4) JP3884479B2 (fr)
KR (1) KR100430921B1 (fr)
CN (1) CN1070543C (fr)
AT (2) AT402741B (fr)
AU (1) AU705530B2 (fr)
BG (1) BG63643B1 (fr)
BR (1) BR9606687A (fr)
CA (1) CA2206250C (fr)
CZ (1) CZ290849B6 (fr)
DE (2) DE59600380D1 (fr)
DK (1) DK0797696T3 (fr)
ES (1) ES2120286T5 (fr)
GB (1) GB2310630B (fr)
GR (1) GR3027605T3 (fr)
HK (1) HK1009161A1 (fr)
HU (1) HU221512B (fr)
MY (1) MY113879A (fr)
NO (1) NO309490B1 (fr)
PL (1) PL188136B1 (fr)
RO (2) RO120276B1 (fr)
SI (1) SI0797696T1 (fr)
SK (1) SK284228B6 (fr)
TR (1) TR199700493T1 (fr)
TW (2) TW421677B (fr)
WO (1) WO1997014829A1 (fr)
ZA (1) ZA968515B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10517325B2 (en) 2013-06-28 2019-12-31 Kolon Industries, Inc. Lyocell material for tobacco filter and method for preparing same
US10617146B2 (en) 2014-12-31 2020-04-14 Kolon Industries, Inc. Method of manufacturing a lyocell material for a cigarette filter
US11103003B2 (en) 2014-06-30 2021-08-31 Kolon Industries, Inc. Modified cross-section lyocell material for tobacco filter, and preparation method therefor

Families Citing this family (14)

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AT402741B (de) * 1995-10-13 1997-08-25 Chemiefaser Lenzing Ag Verfahren zur herstellung cellulosischer fasern
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
AT406588B (de) 1998-09-29 2000-06-26 Chemiefaser Lenzing Ag Verfahren zur herstellung cellulosischer fasern
DE102005024433A1 (de) * 2005-05-24 2006-02-16 Zimmer Ag Verfahren und Vorrichtung zum Schneiden von NMMO-haltigen Spinnfäden sowie für Zellulose-Stapelfasern
EP1936017B1 (fr) * 2006-12-22 2013-08-21 Reifenhäuser GmbH & Co. KG Maschinenfabrik Procédé et dispositif destinés à la fabrication d'un filé-lié constitué de filaments cellulosiques
KR100865135B1 (ko) 2007-04-11 2008-10-24 주식회사 효성 의류용 라이오셀 필라멘트의 제조방법
AT505511B1 (de) * 2007-07-11 2014-03-15 Chemiefaser Lenzing Ag Füllfaser mit verbessertem öffnungsverhalten, verfahren zu deren herstellung und deren verwendung
AT506268B1 (de) * 2008-01-11 2014-08-15 Chemiefaser Lenzing Ag Mikrofaser
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
DE202015102564U1 (de) 2015-05-19 2015-08-13 W. Pelz Gmbh & Co. Kg Oraltabakpackung
CN105200670B (zh) * 2015-08-17 2017-08-01 赖明荣 一种耐低温无纺布
EP3467161A1 (fr) * 2017-10-06 2019-04-10 Lenzing Aktiengesellschaft Procédé de production d'un filament de cellulose de type lyocell
CN109809953A (zh) * 2018-12-29 2019-05-28 湖北航鹏化学动力科技有限责任公司 一种带孔型产气剂模压制品及其制备工艺
EP3771755A1 (fr) 2019-08-02 2021-02-03 Lenzing Aktiengesellschaft Procédé de fabrication de fibres discontinues lyocellulaires

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10517325B2 (en) 2013-06-28 2019-12-31 Kolon Industries, Inc. Lyocell material for tobacco filter and method for preparing same
US11330836B2 (en) 2013-06-28 2022-05-17 Kolon Industries, Inc. Lyocell material for tobacco filter
US11103003B2 (en) 2014-06-30 2021-08-31 Kolon Industries, Inc. Modified cross-section lyocell material for tobacco filter, and preparation method therefor
US10617146B2 (en) 2014-12-31 2020-04-14 Kolon Industries, Inc. Method of manufacturing a lyocell material for a cigarette filter

Also Published As

Publication number Publication date
EP0797696B2 (fr) 2007-10-24
RO116653B1 (ro) 2001-04-30
MX9704441A (es) 1997-10-31
TW357201B (en) 1999-05-01
JP2010174429A (ja) 2010-08-12
HU221512B (en) 2002-10-28
PL188136B1 (pl) 2004-12-31
GB2310630B (en) 1999-02-17
JPH10511151A (ja) 1998-10-27
SI0797696T1 (en) 1998-12-31
CA2206250A1 (fr) 1997-04-24
BR9606687A (pt) 1997-11-25
SK72497A3 (en) 1998-01-14
RO120276B1 (ro) 2005-11-30
AT402741B (de) 1997-08-25
WO1997014829A1 (fr) 1997-04-24
US6117378A (en) 2000-09-12
AU7120596A (en) 1997-05-07
CZ161497A3 (cs) 1998-06-17
ES2120286T5 (es) 2008-04-16
NO972440D0 (no) 1997-05-28
BG101688A (en) 1998-03-31
DE19680883D2 (de) 1998-04-16
CN1070543C (zh) 2001-09-05
MY113879A (en) 2002-06-29
HK1009161A1 (en) 1999-09-10
KR100430921B1 (ko) 2004-08-04
NO972440L (no) 1997-05-28
GB2310630A (en) 1997-09-03
EP0797696A1 (fr) 1997-10-01
ES2120286T3 (es) 1998-10-16
HUP9800831A2 (hu) 1998-07-28
NO309490B1 (no) 2001-02-05
AU705530B2 (en) 1999-05-27
CN1173901A (zh) 1998-02-18
JP3884479B2 (ja) 2007-02-21
SK284228B6 (sk) 2004-11-03
BG63643B1 (bg) 2002-07-31
TR199700493T1 (xx) 1997-11-21
JP5043144B2 (ja) 2012-10-10
TW421677B (en) 2001-02-11
DE59600380D1 (de) 1998-09-03
HUP9800831A3 (en) 1998-12-28
GB9712422D0 (en) 1997-08-13
JP2009013577A (ja) 2009-01-22
CZ290849B6 (cs) 2002-10-16
PL320740A1 (en) 1997-10-27
JP2007016381A (ja) 2007-01-25
ZA968515B (en) 1997-05-20
CA2206250C (fr) 2003-12-09
ATE169063T1 (de) 1998-08-15
DK0797696T3 (da) 1999-05-03
GR3027605T3 (en) 1998-11-30
ATA170395A (de) 1996-12-15

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