EP0843749B1 - Procede et dispositif pour la production de fils de polyester - Google Patents

Procede et dispositif pour la production de fils de polyester Download PDF

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Publication number
EP0843749B1
EP0843749B1 EP96926368A EP96926368A EP0843749B1 EP 0843749 B1 EP0843749 B1 EP 0843749B1 EP 96926368 A EP96926368 A EP 96926368A EP 96926368 A EP96926368 A EP 96926368A EP 0843749 B1 EP0843749 B1 EP 0843749B1
Authority
EP
European Patent Office
Prior art keywords
polyester filaments
countercurrent
dtex
air
polyester
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
EP96926368A
Other languages
German (de)
English (en)
Other versions
EP0843749A1 (fr
Inventor
Rudolf Geier
Jürgen HARTIG
Ingo Eifländer
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
John Brown Deutsche Engineering GmbH
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 John Brown Deutsche Engineering GmbH filed Critical John Brown Deutsche Engineering GmbH
Publication of EP0843749A1 publication Critical patent/EP0843749A1/fr
Application granted granted Critical
Publication of EP0843749B1 publication Critical patent/EP0843749B1/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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • 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
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • 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
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/228—Stretching in two or more steps, with or without intermediate steps

Definitions

  • the invention relates to a method for producing Polyester yarns according to the preamble of claim 1, according to which melt-spun polyester filaments behind a spinneret in a cooling zone cools at least solidification temperature and then for the purpose of stretching in a heating zone on a Temperature above the glass transition point or Freezing point warmed, and to generate the required Yield stress from a gaseous Medium is blown in counterflow and a device according to the preamble of claim 9.
  • US-A-47 43 504 is concerned with the manufacture of Plastic yarn, especially polyester yarn, based on a High speed melt spinning.
  • This Context is treated which plastic yarn specific properties regarding birefringence, Has viscosity, etc.
  • the threads and not the microfilaments are passed through a heating zone and in this to a temperature between the glass and Melting point heated.
  • This heating zone can be of various types be built u. a. also counter- or co-flowing Have air.
  • the Frictional resistance not increased.
  • Do not pre-stretch. It would actually be a stretching process even disadvantageous at this point, as a uniform heating of the filaments and consequently of the the filament bundled plastic thread over his entire cross section to a temperature above the Solidification point is hardly possible.
  • Secondary draw down zone refers to the Threads and not the microfilaments. Because in the quench zone following the spinneret are the individual filaments already spun or bundled into a yarn.
  • polyester filaments leave one here Spinning head, in connection to a cooling chamber or a To go through blow box. Directly after the The aforementioned filaments become one cooling chamber Bundles gathered and as a yarn a subsequent Subjected to heating. For this purpose the yarn goes through and not the polyester filaments a heating tube. Subsequently the yarn is drawn, with an aspect ratio between 1.3 and 1.7. This will set by means of two godets over which the yarn at a speed between 3500 to 5300 m / min running.
  • EP-B 0 491 012 (corresponding to the PCT / DE 91/00420) such a method has become known, at which microfilaments with a single titer ⁇ 1.0 dtex for final stretching at a take-off speed up to 8000 m / min through the heating zone and be blown in counterflow. After this known methods are fully stretched plastic threads generated without post-treatment, which becomes a special let fine and supple goods be processed.
  • the invention is based on the technical problem Method and an apparatus to indicate what Polyester yarns with optimized properties for technical Have uses made in a rational manner.
  • the invention further teaches that the amount of air and The temperature of the counterflow air can be set so that a thread stretch ⁇ 50%, preferably 30% to 40%, is achieved. Furthermore, the withdrawal speed of the Polyester filaments, the amount of air and the temperature of the Counterflow air can be adjusted so that a tensile strength the polyester filaments> 3.2 cN / dtex, preferably 3.4 cN / dtex to 4.5 cN / dtex. In addition, there is Possibility of the amount of air and the temperature of the counterflow air set so that a hot air shrinkage ⁇ 6% (at 177 ° C) is reached.
  • Polyester filaments following the counter current treatment continuously stretched so that a single step Manufacturing process is realized.
  • the post-stretched Polyester filaments may be before winding be subjected to a swirling and re-preparation.
  • the polyester filaments in a separate treatment stage be stretched, for example on one Stretching device such as draw twine or stretch winder.
  • the invention also relates to a device for producing polyester yarns from polyester filaments with a single denier from 1.0 dtex to 7.5 dtex according to the method described above, with at least one spinneret of a cooling zone downstream of the spinneret and of a countercurrent heating zone downstream of the cooling zone.
  • This device which is characterized by a particularly simple and functional design with a high production speed, is characterized in that the godets heated for the purpose of pre-stretching the polyester filaments with an air flow of 5 m 3 / h to 25 m 3 / h in countercurrent heating zone for the purpose of post-stretching with a godet temperature of 80 ° C to 250 ° C are subordinate that the godets can be driven at different speeds to set a predetermined stretching ratio, and that the godets one with a winding speed of 5000 m / min to 8000 m / min working rewinder for the post-stretched polyester filaments.
  • the single figure shows a device according to the invention for the production of fully oriented technical polyester yarns.
  • This is a spinning device 1 with an extruder 2 and a spinning beam provided as a spinneret 3.
  • the Extruder 2 supplies the spinneret 3 with polyester melt.
  • the starting product for the polyester melt is a polyester granulate in the viscosity range IV 0.60 - 1.10 dl / g.
  • On the spinneret 3 is followed by a reheater zone 4.
  • a cooling zone with blowing follows. To the cooling zone 5 is followed by a countercurrent heating zone 7, in the the unbundled polyester filaments 8 in countercurrent be blown. This is followed by a device for the preparation order 9 and thread bundling after Exit from the counterflow heating zone 7.
  • the counterflow heating zone 7 heatable godets 10 are arranged downstream.
  • the Godets 10 are at different speeds drivable.
  • the godet 10 is a winder 11 for the post-stretched polyester
  • the post-stretched polyester filaments 8 and the polyester yarns produced therefrom have the following properties: Elongation at break 6.5% to 12% tensile strenght 5 cN / dtex to 7.5 cN / dtex Shrink, hot air 177 ° C ⁇ 6.0%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (9)

  1. Procédé de production de fils de polyester dans lequel
    les fils de polyester sont produits par réunion de filaments de polyester (8) filés par fusion, dans lequel de plus
    les filaments de polyester (8) sont refroidis derrière une filière (3) dans une zone de refroidissement (5) à au moins la température de solidification et sont ensuite chauffés à une température supérieure à la température de transition vitreuse, dans une zone de chauffage à contre-courant (7), en vue de l'étirage, caractérisé en ce que
    pour produire la tension d'étirage nécessaire dans une orientation non réunie, les filaments de polyester (8) sont guidés à travers la zone de chauffage à contre-courant (7) et sont soumis à une quantité d'air soufflé à contre-courant, de 5 m3/h à 25 m3/h et sont pré-étirés, en ce que
    les filaments de polyester (8) d'un titre individuel de 1,0 dtex à 7,5 dtex sont ensuite étirés en complément à des températures de 80 °C à 250 °C dans un rapport d'étirage de 1:1,5 à 1:1,15, et en ce que
    les filaments de polyester (8) sont ensuite enroulés à une vitesse d'enroulement de 5 m/min à 8 000 m/min.
  2. Procédé selon la revendication 1, caractérisé en ce que les filaments de polyester sont soufflés à contre-courant à une température comprise entre 200 °C et 350 °C, de préférence entre 225 °C et 285 °C.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les filaments de polyester (8) sont tirés à travers le contre-courant à une vitesse d'extraction de 3 000 m/min à 7 500 m/min.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la quantité d'air et la température de l'air à contre-courant sont réglées de manière à obtenir un allongement des fils < 50%, de préférence de 30% à 40%.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la vitesse d'extraction des filaments de polyester (8), la quantité d'air et la température de l'air à contre-courant sont réglés de manière à obtenir une résistance à la traction des filaments de polyester (8) de 3,2 cN/dtex, de préférence de 3,4 cN/dtex à 4,5 cN/dtex.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que la quantité d'air et la température de l'air à contre-courant sont réglées de manière à obtenir un retrait à l'air chaud ≤ 6% (à 177 °C).
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que les filaments de polyester (8) sont soumis à un étirage complémentaire en continu, à la suite du traitement à contre-courant.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que les filaments de polyester (8) sont soumis à un étirage complémentaire au cours d'une étape de traitement séparée.
  9. Dispositif de fabrication de fils de polyester à partir de filaments de polyester (8) d'un titre individuel de 1,0 dtex à 7,5 dtex, selon le procédé de l'une des revendications 1 à 8, comportant au moins une filière (3), une zone de refroidissement (5) située après la filière (3) et une zone de chauffage à contre-courant (7) située après la zone de refroidissement (5), caractérisé en ce qu'à la suite de la zone de chauffage à contre-courant (7), qui fonctionne en vue du pré-étirage des filaments de polyester (8) avec une quantité d'air à contre-courant de 5 m3/h à 25 m3/h, sont disposées des galettes (10) chauffées en vue de l'étirage complémentaire avec une température des galettes comprise entre 80 °C et 250 °C, en ce que pour régler un rapport d'étirage prédéterminé, les galettes (10) peuvent être entraínées à des vitesses différentes, et en ce qu'à la suite des galettes (10) est disposé un dispositif d'enroulement (11) des filaments de polyester (8) étirés en complément, qui fonctionne à une vitesse d'enroulement comprise entre 5 000 m/min et 8 000 m/min.
EP96926368A 1995-08-08 1996-07-19 Procede et dispositif pour la production de fils de polyester Expired - Lifetime EP0843749B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19529135A DE19529135A1 (de) 1995-08-08 1995-08-08 Verfahren und Vorrichtung zum Herstellen von Polyestergarnen
DE19529135 1995-08-08
PCT/EP1996/003182 WO1997006293A1 (fr) 1995-08-08 1996-07-19 Procede et dispositif pour la production de fils de polyester

Publications (2)

Publication Number Publication Date
EP0843749A1 EP0843749A1 (fr) 1998-05-27
EP0843749B1 true EP0843749B1 (fr) 2000-02-09

Family

ID=7768998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96926368A Expired - Lifetime EP0843749B1 (fr) 1995-08-08 1996-07-19 Procede et dispositif pour la production de fils de polyester

Country Status (11)

Country Link
US (1) US5965073A (fr)
EP (1) EP0843749B1 (fr)
KR (1) KR100267601B1 (fr)
CN (1) CN1063497C (fr)
AU (1) AU6658096A (fr)
BR (1) BR9609889A (fr)
DE (2) DE19529135A1 (fr)
ES (1) ES2143772T3 (fr)
MX (1) MX9800950A (fr)
PT (1) PT843749E (fr)
WO (1) WO1997006293A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816979A1 (de) * 1998-04-17 1999-10-21 Brown John Deutsche Eng Gmbh Verfahren und Vorrichtung zum Herstellen von Polyestergarnen
KR20010019393A (ko) * 1999-08-23 2001-03-15 박종계 냉각온도 차이를 이용한 합성수지제 실의 변형방법 및 그장치
EP1361300B1 (fr) * 2000-12-20 2006-07-19 Teijin Limited Procede pour produire un fil constitue de fibres melangees contenant du polyester
CN1888167A (zh) * 2006-07-14 2007-01-03 吕迎智 热辊缠绕加热生产卷曲涤纶长丝的方法
CN102776584B (zh) * 2012-07-30 2013-12-18 苏州龙杰特种纤维股份有限公司 一种由pet聚酯生产高弹力纤维的方法及由其所得高弹力纤维
KR101429701B1 (ko) 2012-10-22 2014-08-12 한국생산기술연구원 복합섬유 제조방법 및 제조장치, 그에 의해 제조된 복합섬유
CN105420865A (zh) * 2015-12-31 2016-03-23 江南大学 一种弹力长丝的生产方法
ES2908921T3 (es) * 2016-08-10 2022-05-04 Yamashin Filter Corp Método de fabricación de fibras finas y aparato de fabricación de fibras finas

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042664B1 (fr) * 1980-06-24 1983-09-21 Imperial Chemical Industries Plc Fils de polyester obtenus par des procédés de filage au fondu, à haute vitesse
JPH086203B2 (ja) * 1986-07-03 1996-01-24 東レ株式会社 熱可塑性合成繊維の製造方法
DE4021545A1 (de) * 1990-07-06 1992-01-16 Engineering Der Voest Alpine I Verfahren und vorrichtung zum herstellen von kunststoffaeden oder -fasern aus polymeren, insbesondere polyamid, polyester oder polypropylen
DE4224453A1 (de) * 1991-08-02 1993-02-04 Barmag Barmer Maschf Verfahren zum herstellen eines hochfesten multifilen synthesegarnes
CA2080621A1 (fr) * 1992-03-30 1993-10-01 George M. Kent Procede de filature et d'etirage en continu de polyamide et installation utilisee a ces fins
JP2692513B2 (ja) * 1992-11-10 1997-12-17 東レ株式会社 ポリエステル繊維の製造方法および装置
DE59601798D1 (de) * 1995-02-23 1999-06-10 Barmag Barmer Maschf Verfahren zum Spinnen, Verstrecken und Aufspulen eines synthetischen Fadens

Also Published As

Publication number Publication date
DE59604431D1 (de) 2000-03-16
ES2143772T3 (es) 2000-05-16
BR9609889A (pt) 1999-12-21
WO1997006293A1 (fr) 1997-02-20
KR19990036196A (ko) 1999-05-25
KR100267601B1 (ko) 2000-10-16
DE19529135A1 (de) 1997-02-13
EP0843749A1 (fr) 1998-05-27
PT843749E (pt) 2000-07-31
MX9800950A (es) 1998-11-30
CN1142546A (zh) 1997-02-12
CN1063497C (zh) 2001-03-21
AU6658096A (en) 1997-03-05
US5965073A (en) 1999-10-12

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