EP0876522B1 - Procédé de production de fibres de cellulose - Google Patents

Procédé de production de fibres de cellulose Download PDF

Info

Publication number
EP0876522B1
EP0876522B1 EP96945731A EP96945731A EP0876522B1 EP 0876522 B1 EP0876522 B1 EP 0876522B1 EP 96945731 A EP96945731 A EP 96945731A EP 96945731 A EP96945731 A EP 96945731A EP 0876522 B1 EP0876522 B1 EP 0876522B1
Authority
EP
European Patent Office
Prior art keywords
fibers
post
bath
pct
orientation
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
EP96945731A
Other languages
German (de)
English (en)
Other versions
EP0876522A1 (fr
Inventor
Konrad Frigge
Hans-Peter Fink
Peter Weigel
Ernst Walenta
Helmut Remde
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP0876522A1 publication Critical patent/EP0876522A1/fr
Application granted granted Critical
Publication of EP0876522B1 publication Critical patent/EP0876522B1/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
    • 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
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/02—Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins

Definitions

  • the invention relates to a method for manufacturing of cellulose fibers with reduced orientation and reduced module.
  • NMMNO N-methyl-morpholine-N-oxide
  • the fibers produced by the NMMNO process are high strength compared to viscose fibers and characteristic of moduli. This is the tensile strength generally in an approximate range of approx. 20 to 50 cN / tex and the initial moduli in one Range over approx. 1500 cN / tex. That means that Strengths pleasantly high, often even higher than required are.
  • the high Module usually through a high orientation of the Causes fibers, and the high orientation is decisive responsible for a strong inclination of the Fibrillating fibers. This high tendency to fibrillate however affects many applications of the fibers in the textile area unfavorable.
  • the task related to the manufacturing process The fiber is characterized by its distinctive features of claim 1 solved.
  • the sub-claims show advantageous Further training.
  • the method according to the invention is carried out in such a way that that in and of itself from the state of the art Technology known from spinning solutions the cellulose in amine oxides, preferably in N-methyl-morpholine-N-oxide (NMMNO) is assumed.
  • NMMNO N-methyl-morpholine-N-oxide
  • the special properties of the after the amine oxide process fibers are made by structural Characteristics marked, one opposite textile viscose fibers more compact precipitation structure with increased crystallinity and chain orientation as well as changed crystallite form can be determined. In particular, it shows that with increasing orientation the module and the tendency to fibrillation increase. It is also known to have springs in the water all types of fibers made from regenerated cellulose (modal fibers, Viscose fibers, polynosic fibers) to reduce Strength, crystallinity and orientation leads. This effect increases - with the exception of Effect on orientation - when swelling in dilute Caustic soda. This also applies to from NMMNO solution spun fibers. The structural parameters mentioned however, always remain at a higher level than with the other fibers (J.
  • an aftertreatment bath used the water and contains water-mixed alkanols, diols, triols. It is preferred if this is the first Post-treatment bath alkali is added. As special a mixture of alkanols, proven preferably from ethanol and sodium hydroxide solution.
  • the aftertreatment bath preferably consists of Ethanol and 1 to 30%, preferably 8 to 20% sodium hydroxide solution.
  • a subsequent wash bath is necessary to Components of the first post-treatment bath, the cannot be removed by drying the threads (e.g. sodium hydroxide solution).
  • the composition of this Wash bath affects the properties of the threads.
  • the wash bath preferably contains water, an alcohol, a diol or a triol or a mixture from that. It is particularly preferred if that Wash bath contains ethanol. That is the orientation the amorphous areas and the module of the threads clearly lower if after treatment in an ethanol / sodium hydroxide bath as a washing bath instead of ethanol of water is used during orientation the crystalline areas after both types of treatment is practically the same.
  • the tensile load can be between 0 and 60%, preferably between 0 and 40%.
  • a solution consisting of 9% cellulose, 79% NMMNO and 12% water is spun by means of an extruder through a 40-hole nozzle with a hole diameter of 0.1 mm into an aqueous precipitation bath.
  • the undried threads are then partially subjected to post-treatment in a special bath, then washed and dried without tensile stress.
  • f a and f c are the orientation factors for the amorphous or crystalline fraction according to "Hermans” (in “Physics and Chemistry of Cellulose Fibers", Elsevier Publishing Company, New York, 1949). They are 1 for ideal orientation and 0 for ideal anisotropy.

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)

Claims (8)

  1. Procédé de production de fibres de cellulose flexibles par filage des solutions de cellulose à travers des filières par l'intermédiaire d'une couche d'air dans un bain de régénération aqueux et/ou alcoolique contenant un oxyde d'amine et séchage subséquent,
    caractérisé en ce que
    les fils humides après filage sont conduits avant le séchage, à travers au moins un bain de retraitement contenant de l'eau et des alkanols, des diols, des triols, miscibles à l'eau ou leurs mélanges et au moins un bain de lavage contenant de l'eau, un alkanol, un diol ou un triol.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    le bain de retraitement est alcalin.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    le bain de retraitement consiste en un mélange d'alkanols et de lessive de soude.
  4. Procédé selon la revendication 3,
    caractérisé en ce que
    le bain de retraitement consiste en de l'éthanol et de 1 à 30 % de lessive de soude.
  5. Procédé selon au moins l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    le bain de lavage contient un alkanol.
  6. Procédé selon la revendication 5,
    caractérisé en ce que
    le bain de lavage contient de l'éthanol.
  7. Procédé selon au moins l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    les fibres lors du séchage sont soumises à une charge de traction.
  8. Procédé selon la revendication 7,
    caractérisé en ce que
    la charge de traction se situe entre 0 et 60 % de la résistance à l'état humide.
EP96945731A 1996-01-09 1996-11-13 Procédé de production de fibres de cellulose Expired - Lifetime EP0876522B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19600572A DE19600572B4 (de) 1996-01-09 1996-01-09 Verfahren zur Herstellung von Cellulosefasern und die mit diesem Verfahren hergestellten Fasern
DE19600572 1996-01-09
PCT/DE1996/002190 WO1997025462A1 (fr) 1996-01-09 1996-11-13 Procede de production de fibres de cellulose et fibres obtenues a l'aide dudit procede

Publications (2)

Publication Number Publication Date
EP0876522A1 EP0876522A1 (fr) 1998-11-11
EP0876522B1 true EP0876522B1 (fr) 2001-03-21

Family

ID=7782391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96945731A Expired - Lifetime EP0876522B1 (fr) 1996-01-09 1996-11-13 Procédé de production de fibres de cellulose

Country Status (5)

Country Link
US (1) US6103162A (fr)
EP (1) EP0876522B1 (fr)
AT (1) ATE199943T1 (fr)
DE (2) DE19600572B4 (fr)
WO (1) WO1997025462A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853146A3 (fr) * 1997-01-09 1999-03-24 Akzo Nobel N.V. Procédé de production de fibres cellulosiques et fibres cellulosiques
AT406588B (de) * 1998-09-29 2000-06-26 Chemiefaser Lenzing Ag Verfahren zur herstellung cellulosischer fasern
DE10043297B4 (de) * 2000-09-02 2005-12-08 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. Verfahren zur Herstellung von Cellulosefasern und Cellulosefilamentgarnen
AT413286B (de) * 2003-11-06 2006-01-15 Chemiefaser Lenzing Ag Verfahren zum waschen eines saugfähigen materials
AT413285B (de) * 2003-11-06 2006-01-15 Chemiefaser Lenzing Ag Verfahren zum waschen eines saugfähigen materials
AT413287B (de) * 2003-11-25 2006-01-15 Chemiefaser Lenzing Ag Verfahren zur herstellung cellulosischer fasern
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
EP3536853A1 (fr) 2018-03-06 2019-09-11 Lenzing Aktiengesellschaft Fibre lyocell à formation de bouloche réduite

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9103297D0 (en) * 1991-02-15 1991-04-03 Courtaulds Plc Fibre production method
DE4420304C1 (de) * 1994-06-10 1995-09-21 Fraunhofer Ges Forschung Flexible Cellulosefasern mit reduziertem Modul und vermindertem NMR-Ordnungsgrad und deren Herstellung

Also Published As

Publication number Publication date
ATE199943T1 (de) 2001-04-15
DE59606647D1 (de) 2001-04-26
WO1997025462A1 (fr) 1997-07-17
DE19600572A1 (de) 1997-07-10
EP0876522A1 (fr) 1998-11-11
US6103162A (en) 2000-08-15
DE19600572B4 (de) 2005-03-10

Similar Documents

Publication Publication Date Title
EP2981639B1 (fr) Fibres en polysaccharides à pouvoir élevé de formation de fibrilles et leur procédé de fabrication
EP2981640B1 (fr) Fibres en polysaccharides et leur procédé de fabrication
EP0494852A2 (fr) Procédé pour la fabrication d'objets cellulosiques
DE1108849B (de) Verfahren zur Herstellung von Gebilden aus regenerierter Cellulose
AT402741B (de) Verfahren zur herstellung cellulosischer fasern
EP0683827B1 (fr) Procede de fabrication de corps moules en cellulose
DE2851273A1 (de) Nasspinnverfahren zur herstellung von hochverstreckten acrylnitril-polymerfasern
EP0876522B1 (fr) Procédé de production de fibres de cellulose
EP0799333B1 (fr) Fibres et fils de cellulose presentant une propension reduite a la formation de fibrilles
EP0608744A1 (fr) Filaments d'acétate de cellulose, solution de filage optiquement isotrope à cet effet et son utilisation pour la fabrication des filaments
EP0799332B1 (fr) Procede de production de corps moules cellulosiques et corps moules cellulosiques obtenus a l'aide dudit procede
WO1996007779A1 (fr) Procede de fabrication d'objets moules en cellulose
EP0796358B1 (fr) Fibre de cellulose
WO1998006754A1 (fr) Procede de production de pieces faconnees en cellulose
DE1469108A1 (de) Verfahren zum Herstellen viskoseregenerierter Zellulosefasern
DE4446491C2 (de) Verfahren zur Herstellung von Cellulosefasern sowie Cellulosefasern mit reduzierter Fibrillierneigung
DE1494745A1 (de) Verfahren zur Herstellung von Faeden oder Fasern aus Viscose
DE2031308C3 (de) Verfahren zur Herstellung von gekräuselten, regenerierten Cellulosefasern
DE1469108C (de) Verfahren zum Herstellen regenerierter Zellulosefasern
DE3015565A1 (de) Verfahren zur herstellung von geformten koerpern aus regenerierter cellulose aus spinnloesungen
DE1937985C (de) Verfahren zur Herstellung von PoIyvinylalkoholfäden
EP1124886B1 (fr) Procede de production de films cellulosiques plats
AT232638B (de) Verfahren zur Herstellung von aus regenerierter Cellulose bestehenden Gebilden, wie Fäden, Fasern, Schnüren, Folien od. dgl.
AT310923B (de) Verfahren zur Herstellung von Fasern aus regenerierter Cellulose mit hoher Kräuselung und hoher Dehnung
DE1469064C (de) Verfahren zum Herstellen von aus regenerierter Cellulose bestehenden Fäden, Fasern oder Folien

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980522

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE GB

17Q First examination report despatched

Effective date: 19981106

RTI1 Title (correction)

Free format text: PROCESS FOR PRODUCING CELLULOSE FIBRES

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE GB

REF Corresponds to:

Ref document number: 199943

Country of ref document: AT

Date of ref document: 20010415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59606647

Country of ref document: DE

Date of ref document: 20010426

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010531

EN Fr: translation not filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20061122

Year of fee payment: 11

BERE Be: lapsed

Owner name: *FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWAN

Effective date: 20071130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20081120

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20081121

Year of fee payment: 13

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20091113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091113

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110124

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59606647

Country of ref document: DE

Effective date: 20120601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120601