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WO1998038373A1 - Procede de fabrication d'une nappe de fibres renforcee - Google Patents

Procede de fabrication d'une nappe de fibres renforcee Download PDF

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Publication number
WO1998038373A1
WO1998038373A1 PCT/AT1998/000040 AT9800040W WO9838373A1 WO 1998038373 A1 WO1998038373 A1 WO 1998038373A1 AT 9800040 W AT9800040 W AT 9800040W WO 9838373 A1 WO9838373 A1 WO 9838373A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber composite
nmmo
cellulose
aqueous
solution
Prior art date
Application number
PCT/AT1998/000040
Other languages
German (de)
English (en)
Inventor
Hartmut Rüf
Heinrich Firgo
Siegfried Ambrosch
Christian Schlossnikl
Raimund Jurkovic
Original Assignee
Lenzing Aktiengesellschaft
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 Aktiengesellschaft filed Critical Lenzing Aktiengesellschaft
Priority to JP10537058A priority Critical patent/JP2000509771A/ja
Priority to DE59800265T priority patent/DE59800265D1/de
Priority to BR9805914A priority patent/BR9805914A/pt
Priority to EP98903942A priority patent/EP0901533B1/fr
Priority to CN98800507A priority patent/CN1105798C/zh
Priority to AU62001/98A priority patent/AU727252B2/en
Priority to AT98903942T priority patent/ATE196329T1/de
Publication of WO1998038373A1 publication Critical patent/WO1998038373A1/fr
Priority to US09/173,822 priority patent/US6042890A/en
Priority to NO19984883A priority patent/NO310205B1/no

Links

Classifications

    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/388—Amine oxides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/10—Processes in which the treating agent is dissolved or dispersed in organic solvents; Processes for the recovery of organic solvents thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic

Definitions

  • the present invention relates to a method for producing a solidified fiber composite, which contains cellulosic fibers, the cellulose being present in the cellulose II crystal structure, by contacting the fiber composite with an aqueous solution of N-methylmorpholine-N-oxide (NMMO) at elevated temperature and then washing the fiber composite.
  • NMMO N-methylmorpholine-N-oxide
  • fiber composite is intended to denote any type of fabric, fleece or scrim.
  • N-methylmorpholine-N-oxide is preferably used as the solvent.
  • NMMO N-methylmorpholine-N-oxide
  • the abbreviation "NMMO” is used for the term “tertiary amine oxides” used, NMMO additionally stands for the N-methylmorpholine-N-oxide which is preferably used today.
  • Tertiary amine oxides have long been known as alternative solvents for cellulose. From US Pat. No. 2,179,181 it is known, for example, that tertiary amine oxides can dissolve high-quality chemical pulp without derivatization and that cellulosic shaped bodies such as fibers can be obtained from these solutions by precipitation. US Pat. Nos. 3,447,939, 3,447,956 and 3,508,941 describe further processes for the preparation of cellulosic solutions, cyclic amine oxides preferably being used as solvents. In all of these processes, cellulose is physically dissolved at an elevated temperature.
  • EP-A-0 356 419 by the applicant describes a process which is preferably carried out in a thin-film treatment apparatus in which a suspension of the comminuted pulp in an aqueous tertiary amine oxide, spread out in the form of a thin layer, is transported over a heating surface , the surface of this thin layer being subjected to a vacuum.
  • a suspension of the comminuted pulp in an aqueous tertiary amine oxide, spread out in the form of a thin layer is transported over a heating surface , the surface of this thin layer being subjected to a vacuum.
  • water is evaporated off and the cellulose can be brought into solution, so that a spinnable cellulose solution is discharged from the thin-film treatment apparatus.
  • a method and an apparatus for spinning cellulose solutions are known, for example, from WO 93/19230 by the applicant.
  • the spinning solution is spun in a warm state and the filaments obtained are introduced into a precipitation bath to precipitate the cellulose contained, the filaments 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.
  • German Patent No. 902 427 describes the consolidation of a nonwoven made of cellulose fibers by means of a lye bath which contains 5 to 15% NaOH. The cellulose fibers are swollen with the lye bath, causing a consolidation.
  • Sheet formation process is subjected, wherein the suspension contains a tertiary amine oxide. This process allows the production of high strength paper.
  • a method for solidifying a fibrous material is known from US-A-3,447,956.
  • the solidification is carried out by impregnating the fibrous material with an amine oxide and heating it to a temperature at which the amine oxide can solidify the fibrous material.
  • Woven and nonwovens which are natural cellulosic fibers, such as e.g. Pulp, cotton, linen, but also synthetic fibers, e.g. Include rayon (viscose fibers), suggested.
  • the treatment of paper with the amine oxide is particularly preferred.
  • NMMO is apparently used as a monohydrate in molten or liquid form or in solution with a volatile, evaporable solvent.
  • fiber composites which are provided with a cellulosic coating, impregnation or covering. These fiber composites are produced by coating the fiber composite on one side with a solution of cellulose in an aqueous NMMO, after which the layer is coagulated in a water bath.
  • the US-A-4,196,282 describes the three-component system MMO / H 2 0 / cellulose and the so-called "release window", that is Conditions under which the cellulose dissolves in the aqueous NMMO.
  • the object of the invention is to provide a method of the type mentioned at the outset in which a fiber composite can be solidified without complex evaporation of a volatile solvent or without the need to use an NMMO monohydrate or to produce it by evaporation.
  • the process according to the invention for producing a consolidated fiber composite, which contains cellulosic fibers, the cellulose being present in the cellulose II crystal structure, by contacting the fiber composite with an aqueous solution of N-methylmorpholine-N-oxide (NMMO) at elevated temperature and then washing the Fiber composite, is characterized in that the contacting is carried out so that the relationship
  • T means the temperature of the aqueous NMMO solution in ° C
  • C the concentration of the NMMO in mass%, based on the aqueous NMMO Solution means a number in the range from 0.30 and 1.70, preferably in the range from 0.5 to 1.5, and particularly preferably in the range from 0.8 to 1.2, with the proviso that that the temperature T is less than 130 ° C and the concentration C is in the range of 70 to 84 mass%.
  • the invention is based on the knowledge that the three parameters mentioned, that is to say the concentration of the NMMO solution, its temperature and the impregnation time, are apparently essential and sufficient for the strengthening of a composite, for example a nonwoven, of cellulose fibers, and that they are also chosen in this way the above relationship must be satisfied. If, on the other hand, these parameters are chosen so that the relationship is less than 0.30, the bond cannot be strengthened. On the other hand, if the parameters are chosen so that the relationship gives a value above 1.70, then a dissolution of the fiber composite in the NMMO solution is observed.
  • the temperature T is preferably less than 100 ° C.
  • a special embodiment of the method according to the invention is characterized in that the fiber composite is pressed before washing.
  • the pressing can be carried out in a simple manner e.g. be made so that the fleece is guided between two rollers that exert pressure on the fiber composite.
  • the use of a fiber composite has proven particularly useful, the fibers of which have been produced at least in part by the amine oxide process or the viscose process.
  • the parameters to be set according to the invention namely the concentration of the respective NMMO solution (in mass% NMMO, based on the total mass of the solution), its temperature (in ° C.) and the impregnation time (in Minutes) were selected as indicated in Table 1 below. All of the examples meet the relationship given above. The value resulting from the parameters is also given in the table.
  • Examples 1 to 15 are according to the invention, since the values resulting from the above-mentioned relationship with the NMMO concentration, the temperature and the impregnation time are in the range specified according to the invention. All of the nonwovens proved to be consolidated after the treatment according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Reinforced Plastic Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une nappe de fibres renforcée contenant des fibres cellulosiques. La cellulose est présente sous la forme de la structure cristalline cellulose II. Ce procédé consiste à mettre en contact la nappe de fibres avec une solution aqueuse de N-méthylmorpholin-N-oxyde (NMMO) à une température élevée puis à laver la nappe de fibres. Le procédé selon l'invention est caractérisé en ce que la mise en contact est réalisée de telle manière que l'on obtienne un nombre compris entre 0,30 et 1,70 pour la relation -947 + 0,30xlog(10) t + 0,046xT - 3,53xC + 645xlog(10) C où t représente le temps, exprimé en minutes, pendant lequel la nappe de fibres est mise en contact avec la solution aqueuse de NMMO, T représente la température de la solution aqueuse NMMO en °C et où C représente la concentration de NMMO en % en masse, par rapport à la solution aqueuse de NMMO, cela à condition que la température T soit inférieure à 130 °C et la concentration C soit comprise entre 70 et 84 % en masse.
PCT/AT1998/000040 1997-02-25 1998-02-25 Procede de fabrication d'une nappe de fibres renforcee WO1998038373A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP10537058A JP2000509771A (ja) 1997-02-25 1998-02-25 強化繊維集成体の製造方法
DE59800265T DE59800265D1 (de) 1997-02-25 1998-02-25 Verfahren zur herstellung eines verfestigten faserverbundes
BR9805914A BR9805914A (pt) 1997-02-25 1998-02-25 Processo para prepara-Æo de um composto de fibras refor-ado
EP98903942A EP0901533B1 (fr) 1997-02-25 1998-02-25 Procede de fabrication d'une nappe de fibres renforcee
CN98800507A CN1105798C (zh) 1997-02-25 1998-02-25 生产增强纤维组合物的方法
AU62001/98A AU727252B2 (en) 1997-02-25 1998-02-25 Process for producing a strengthened fiber assembly
AT98903942T ATE196329T1 (de) 1997-02-25 1998-02-25 Verfahren zur herstellung eines verfestigten faserverbundes
US09/173,822 US6042890A (en) 1997-02-25 1998-10-16 Process for producing a strengthened fiber assembly
NO19984883A NO310205B1 (no) 1997-02-25 1998-10-20 Fremgangsmåte ved fremstilling av en forsterket fiberkompositt

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0031997A AT404368B (de) 1997-02-25 1997-02-25 Verfahren zur herstellung eines verfestigten faserverbundes
ATA319/97 1997-02-25

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/173,822 Continuation US6042890A (en) 1997-02-25 1998-10-16 Process for producing a strengthened fiber assembly

Publications (1)

Publication Number Publication Date
WO1998038373A1 true WO1998038373A1 (fr) 1998-09-03

Family

ID=3487424

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1998/000040 WO1998038373A1 (fr) 1997-02-25 1998-02-25 Procede de fabrication d'une nappe de fibres renforcee

Country Status (12)

Country Link
EP (1) EP0901533B1 (fr)
JP (1) JP2000509771A (fr)
CN (1) CN1105798C (fr)
AT (2) AT404368B (fr)
AU (1) AU727252B2 (fr)
BR (1) BR9805914A (fr)
CA (1) CA2251728A1 (fr)
DE (1) DE59800265D1 (fr)
ES (1) ES2152745T3 (fr)
ID (1) ID20258A (fr)
NO (1) NO310205B1 (fr)
WO (1) WO1998038373A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009028306B4 (de) * 2009-08-06 2011-04-21 Tpr Fiberdur Gmbh & Co. Kg Doppelrohr
PL2363108T3 (pl) 2010-03-02 2018-04-30 Neubourg Skin Care Gmbh & Co. Kg Formulacje piankowe zawierające co najmniej jeden triterpenoid
DE202015102564U1 (de) 2015-05-19 2015-08-13 W. Pelz Gmbh & Co. Kg Oraltabakpackung
CN105728565A (zh) * 2016-04-22 2016-07-06 安徽联盟模具工业股份有限公司 转动翻板式无压痕模具

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE902427C (de) * 1948-10-12 1955-04-04 Dr Otto Eisenhut Verfahren zur Herstellung fester, waschbarer, gewebeaehnlicher, verfilzter Stoffe aus Cellulosefasern ohne Spinnen und Weben
US3447956A (en) * 1966-09-02 1969-06-03 Eastman Kodak Co Process for strengthening swellable fibrous material with an amine oxide and the resulting material
WO1995007386A1 (fr) * 1993-09-06 1995-03-16 Lenzing Aktiengesellschaft Procede de fabrication du papier
JPH08209535A (ja) * 1995-01-31 1996-08-13 Unitika Ltd セルロース繊維布帛の風合加工方法
WO1996031645A1 (fr) * 1995-04-06 1996-10-10 Kao Corporation Procede d'amelioration de la fibre de cellulose
WO1996037653A1 (fr) * 1995-05-22 1996-11-28 Akzo Nobel N.V. Corps façonnes recouverts, impregnes ou enrobes d'une composition cellulosique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE902427C (de) * 1948-10-12 1955-04-04 Dr Otto Eisenhut Verfahren zur Herstellung fester, waschbarer, gewebeaehnlicher, verfilzter Stoffe aus Cellulosefasern ohne Spinnen und Weben
US3447956A (en) * 1966-09-02 1969-06-03 Eastman Kodak Co Process for strengthening swellable fibrous material with an amine oxide and the resulting material
WO1995007386A1 (fr) * 1993-09-06 1995-03-16 Lenzing Aktiengesellschaft Procede de fabrication du papier
JPH08209535A (ja) * 1995-01-31 1996-08-13 Unitika Ltd セルロース繊維布帛の風合加工方法
WO1996031645A1 (fr) * 1995-04-06 1996-10-10 Kao Corporation Procede d'amelioration de la fibre de cellulose
WO1996037653A1 (fr) * 1995-05-22 1996-11-28 Akzo Nobel N.V. Corps façonnes recouverts, impregnes ou enrobes d'une composition cellulosique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 096, no. 012 26 December 1996 (1996-12-26) *

Also Published As

Publication number Publication date
ATE196329T1 (de) 2000-09-15
ES2152745T3 (es) 2001-02-01
CN1224474A (zh) 1999-07-28
AT404368B (de) 1998-11-25
NO984883D0 (no) 1998-10-20
ID20258A (id) 1998-11-12
AU6200198A (en) 1998-09-18
AU727252B2 (en) 2000-12-07
CA2251728A1 (fr) 1998-09-03
BR9805914A (pt) 1999-08-24
NO310205B1 (no) 2001-06-05
DE59800265D1 (de) 2000-10-19
CN1105798C (zh) 2003-04-16
JP2000509771A (ja) 2000-08-02
EP0901533B1 (fr) 2000-09-13
ATA31997A (de) 1998-03-15
EP0901533A1 (fr) 1999-03-17
NO984883L (no) 1998-10-20

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