EP0961844A1 - Dispositif d'etirage et procede pour la fabrication de filaments synthetiques etires - Google Patents

Dispositif d'etirage et procede pour la fabrication de filaments synthetiques etires

Info

Publication number
EP0961844A1
EP0961844A1 EP98904144A EP98904144A EP0961844A1 EP 0961844 A1 EP0961844 A1 EP 0961844A1 EP 98904144 A EP98904144 A EP 98904144A EP 98904144 A EP98904144 A EP 98904144A EP 0961844 A1 EP0961844 A1 EP 0961844A1
Authority
EP
European Patent Office
Prior art keywords
filaments
air
plastic
countercurrent
temperature
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.)
Ceased
Application number
EP98904144A
Other languages
German (de)
English (en)
Inventor
Jean Baravian
Georges Riboulet
Helmut Leiner
Robert Groten
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7819876&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0961844(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0961844A1 publication Critical patent/EP0961844A1/fr
Ceased legal-status Critical Current

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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—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
    • D01D5/084—Heating 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
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • 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
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • 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
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • 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 drawing device comprising a spinning device and a pneumatic device for generating a pulling force on the plastic filaments, and a method for producing drawn plastic filaments, according to which melt-spun filaments with a single titer of greater than 1 dTex are cooled behind a spinning device at least to solidification temperature and be stretched by means of a pneumatic take-off device for the production of plastic threads, staple fibers or nonwovens.
  • the production of plastic filaments by melt spinning essentially consists of three process steps. First the polymer is melted by means of an extruder, then the filaments are spun by means of a spinneret provided with capillary bores or several spinnerets. Finally, the spun filaments are stretched to reduce the cross section. The reduction in the cross section of the spun filament is an essential requirement for many technical and textile applications.
  • the drawing which is a decisive process step for the further possible uses of these filaments, can be integrated directly, continuously and / or automatically into the spinning process or as an independent process step in the production process.
  • the filaments are stretched by means of a draw-off device, mechanically by means of godets, or pneumatically, by means of a nozzle.
  • US 2 604667 teaches the production of oriented threads without a special stretching device for post-stretching by using a take-off speed of at least 4700 m / min. This high speed is necessary to achieve high strength. If the speed falls below, the filaments produced have a high elongation. To achieve this pull-off speed, you can driven rollers or an air nozzle can be used. US 2 604667 primarily deals with the production of yarns, but also mentions the production of staple fibers when using an air nozzle as a take-off device.
  • DE-OS 29 25 006 deals with the effect of stretching on strength on the one hand and with elongation and de-shrinking on the other. It is stated that the filaments are given greater strength by stretching, while reducing elongation and shrinkage. The higher take-off speeds of 4100 to 6000 m / min compared to DE-OS 21 17 659 are achieved by using slightly red-hot heating elements in direct contact with the filaments.
  • plastic fibers from polymers in particular polyamide, polyester or polypropylene by melt spinning
  • a system with at least one spinneret, one blow shaft, one heating shaft, one preparation device, godet and one coil device is known from DE 40 21 545, the Blower devices generating countercurrent, e.g. Has blow nozzles.
  • Fully stretched plastic threads or fibers can be produced with this system, the individual fibers or filaments having an individual titer less than 1, dTex.
  • fully stretched plastic threads are produced without post-treatment, which can be processed into a particularly fine and supple product. It has not been established whether the system has sufficient stretching properties for higher titer ranges.
  • the object of the invention is to provide a device and to provide a method which is suitable for the production of stretched plastic filaments with a titer greater than 1 dTex and which produces filaments with higher strength and reduced elongation. Presentation of the invention
  • the stretching device has a heating device which is arranged between the spinning device and the take-off device and has a flow of heating medium which is conducted in countercurrent to the plastic fiber.
  • Endless filaments made of thermoplastic e.g. polyester, polyamide, polypropylene, polyethylene etc.
  • thermoplastic e.g. polyester, polyamide, polypropylene, polyethylene etc.
  • the mechanical properties of the filaments produced by melt spinning improve significantly, particularly with the same titer, the tensile strength, the elongation, the modulus of elasticity and the thermal shrinkage.
  • the heating device can be operated with hot air supplied in countercurrent or another hot, preferably neutral gas, but also with gas mixtures mixed with additives.
  • the air is heated to a temperature above the solidification temperature of the filaments.
  • the mode of operation of the heating device is based on the fact that an area for "holding” or “braking” the heated filament bundle is created between the spinning device and the take-off device by the countercurrent heating means. This makes it possible to apply a further stretching force by means of the take-off device arranged downstream of the region, and an additional stretching takes place.
  • the stretching is defined by the difference in the rate of entry of the filaments into the heating device and the rate of entry of the filaments in the take-off device.
  • the pneumatic extraction device which works on the principle of air friction, can also be combined with a heating device that works in countercurrent.
  • the filaments obtained in this way experience an increase in strength and a reduction in elongation at the same take-off speed.
  • a major advantage is, however, that the rate of withdrawal can be drastically reduced to produce filaments with certain properties.
  • Spunbond may be provided. These means cause the plastic filaments conveyed via the pneumatic take-off device to be deposited into a flat structure, namely a spunbonded fabric, no further mechanical conveying means being necessary for the plastic filaments.
  • the drawing device can also be supplemented by means of producing staple fibers, the synthetic filaments being cut into short fibers. These fibers are particularly suitable for the production of nonwovens.
  • melt-spun filaments are cooled behind a spinning device at least to the solidification temperature and stretched by means of a pneumatic take-off device, with a subsequent heating in a heating device for the purpose of stretching, the filaments in the heating device being changed from a gaseous to a temperature above the solidification point of heated medium can be blown in countercurrent, plastic filaments can be produced that have a higher strength with less elongation.
  • These filaments require no further post-stretching and enable the process to be carried out at lower take-off speeds than before.
  • the process is preferably carried out in such a way that post-stretching takes place between the heating device and the take-off device in a stretching ratio of 1.1 to 1.5.
  • the filaments are blown in countercurrent at a temperature of 200 ° C. to 350 ° C., preferably 225 ° C. to 300 ° C. in the case of PET or PA 66.
  • the air volume can be varied from 5 m 3 / h to 25 m 3 / h.
  • the filaments are passed through the counterflow at a take-off speed of 2000 m / min to 4700 m / min. Nevertheless, the improvement of the properties also occurs at higher speeds.
  • the properties of the plastic to be produced can be influenced. So it is possible to adjust the amount of air and the temperature of the countercurrent air so that a thread elongation of less than 60% is achieved, or to adjust the rate at which the filaments are drawn off, the amount of air and the temperature of the countercurrent air so that a relative increase in tensile strength at the same rate of withdrawal of the post-drawn filament of at least 20% compared to a single-drawn filament, preferably having a tensile strength of the filaments of at least 32 cN / Tex, particularly preferably 34 to 45 cN / Tex, or adjusting the air volume and the temperature of the countercurrent air so that a hot air shrinkage of at most 6% (at 180 ° C, 15 min) is achieved.
  • the filaments are highly stretched, it is possible to re-stretch the filaments following the countercurrent treatment or in a separate treatment step.
  • the plastic filaments can be placed on a support to produce a nonwoven or cut to produce staple fibers, the cut filaments being able to be filled for processing in further processes.
  • the use of the plastic filaments for producing a nonwoven is particularly advantageous, the filaments having a tensile strength of at least 32 cN / Tex and an elongation of less than 60%.
  • the plastic filaments can be deposited as continuous filaments; to produce a nonwoven, the plastic filaments can be deposited as staple fibers.
  • the use of the plastic filaments for the production of yarns is also advantageous, the filaments having a tensile strength of at least 32 cN / Tex and an elongation of less than 60%.
  • the yarns can be made from endless plastic filaments or spun from staple fibers.
  • a drawing device for producing drawn plastic filaments is shown schematically. It shows the: Fig. 1 shows the essential components of the system, Fig. 2 shows a course of the speed of a filament bundle according to the invention compared to conventional systems and Fig. 3 shows the characteristics of various mechanical properties.
  • the drawing device shown in FIG. 1 for the production of drawn plastic fibers comprises a spinning device 1, which is supplied with melted plastic in a known manner.
  • a number of filaments 2, which together form a bundle of filaments 3, emerges via spinnerets arranged in the spinning device 1 and corresponds to the number of openings in the spinnerets.
  • Usually 16, 32 or 64 filaments are combined into a filament bundle.
  • the filaments 2 are cooled below the solidification temperature, and an additional cooling device 4 can be provided. Crystalline and amorphous zones form in the individual filament.
  • the cooled filaments 2 are now fed to a heating device 5 and bundled there so that the heating device 5 runs in parallel.
  • the heating device 5 has a heating shaft 6, at the lower end 7 of which hot air 8 is fed in relation to the spinning device and at the upper end 9 of which the air emerges again. In the heating shaft 6, the air 8 is consequently guided in countercurrent to the filament bundle 3.
  • the take-off device 10 is arranged, with which a pulling force is exerted on the filament bundle 3. This takes place pneumatically via a Venturi nozzle 11, to which air 12 under high pressure is supplied, so that the narrowest cross section the speed of sound is reached in the further course the speed of sound is exceeded.
  • the filament bundle 3 emerging from the take-off device 10 can be processed in a known manner to a plastic thread, cut to produce staple fibers or used to produce a spunbonded nonwoven. The latter is described, for example, in FR 7420 254.
  • FIG. 2 shows an overview of the speed profile of the spun filaments for various systems or processes.
  • a take-off speed of 6000 m / min the filaments experience a shock-like cooling due to the very high speed gradients in the longitudinal and transverse directions, see curve A.
  • the speed gradient of the spinning path is greater than 2x10 4 1 / s, and the cooling rate is of the order of 26000 ° C / s.
  • Table 1 shows various test results with and without a heater for different mass throughputs of polyethylene terephthalate (PET) with a melting point of 256 ° C and a viscosity of 190 Pa s at 290 ° C.
  • PET polyethylene terephthalate
  • a drawing device consisting of spinning device 1 and take-off device 10 was used for the production of filaments.
  • the second experimental arrangement V differs from the first in that a heating device 5 was provided between the spinning device 1 and the take-off speed 10, in which the filaments were heated with air which was conducted in countercurrent and heated to a temperature above the solidification temperature. It is possible that the filaments 3 are heated above their solidification temperature, but that the melting temperature is nevertheless not reached.
  • the force-strain curve is from the experiments T1, V1, V1.1, V1.2; T2, V2 resulting filaments compiled.
  • the improved filaments can take significantly more load here without experiencing excessive stretching. This behavior is still largely the case even with filaments produced with reduced take-off speed in accordance with V1.2 or V2.
  • the filaments emerging from the approximately 300 ° C. hot spinning device were cooled by air flow at room temperature, the filaments in the heating device were heated with a volume flow of air heated to 270-300 ° C.
  • the temperature of the gaseous fluid 8 for polyolefins must be adjusted according to the respective melting temperature.
  • the mass flow rate of gaseous fluid 8 depends, among other things, on the amount of filaments to be drawn, the polymer or polymers used, the degree of drawing and the pre-drawing between the spinning device 1 and the heating device 5.
  • the filaments are particularly suitable for the production of nonwovens, the material being thermoplastic, in particular PET, but also polyester (PES), polyamide (PA), polyamide 6.6 (PA 6.6), polypropylene (PP) or
  • Polybutylene terephthalate come into question.
  • the filaments can also be made from several different materials using known spinning techniques.

Landscapes

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

Abstract

L'invention concerne un dispositif d'étirage et un procédé pour la fabrication de filaments synthétiques étirés (2, 3), comportant un dispositif de filage (1) et un dispositif d'extraction (10) pourvu de moyens pneumatiques pour produire une force de traction sur les filaments synthétiques (2, 3). Un dispositif de chauffage (5) possédant un flux de milieu chauffant (8) guidé à contre-courant des filaments synthétiques (2, 3) est disposé entre le dispositif de filage (1) et le dispositif d'extraction (10).
EP98904144A 1997-02-12 1998-01-26 Dispositif d'etirage et procede pour la fabrication de filaments synthetiques etires Ceased EP0961844A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19705113 1997-02-12
DE1997105113 DE19705113C2 (de) 1997-02-12 1997-02-12 Verstreckvorrichtung und Verfahren zur Herstellung verstreckter Kunststoffilamente
PCT/EP1998/000412 WO1998036110A1 (fr) 1997-02-12 1998-01-26 Dispositif d'etirage et procede pour la fabrication de filaments synthetiques etires

Publications (1)

Publication Number Publication Date
EP0961844A1 true EP0961844A1 (fr) 1999-12-08

Family

ID=7819876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98904144A Ceased EP0961844A1 (fr) 1997-02-12 1998-01-26 Dispositif d'etirage et procede pour la fabrication de filaments synthetiques etires

Country Status (7)

Country Link
EP (1) EP0961844A1 (fr)
JP (1) JP2000509770A (fr)
CN (1) CN1247578A (fr)
BR (1) BR9807833A (fr)
CA (1) CA2280872A1 (fr)
DE (1) DE19705113C2 (fr)
WO (1) WO1998036110A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10139228A1 (de) * 2001-08-09 2003-03-06 Freudenberg Carl Kg Verstreckvorrichtung und Verfahren zur Herstellung verstreckter Kunststoffilamente
DE102004042119A1 (de) * 2004-08-30 2006-03-02 Trützschler GmbH & Co KG Vorrichtung zur Herstellung eines Faservlieses, z.B. aus Baumwolle, Chemiefasern o.dgl.
CN102433685A (zh) * 2011-10-21 2012-05-02 成都彩虹环保科技有限公司 简易型无纺布制造装置
CN102776708A (zh) * 2012-08-22 2012-11-14 成都彩虹环保科技有限公司 一种纤维加工装置
WO2014064029A1 (fr) * 2012-10-27 2014-05-01 Oerlikon Textile Gmbh & Co. Kg Appareil de production de non-tissé
CN102912464B (zh) * 2012-11-13 2016-08-24 广州市新辉联无纺布有限公司 一种热塑性材料纺丝设备
PL2738297T3 (pl) * 2012-12-03 2016-08-31 Reifenhaeuser Masch Urządzenie i sposób do produkcji pasma włókniny spod filiery z filamentów
CN107354523A (zh) * 2017-08-16 2017-11-17 温州朝隆纺织机械有限公司 一种用于气流纺丝的牵伸装置
CN108823719B (zh) * 2018-08-10 2020-08-11 杭州华远特种纤维有限公司 一种dty丝线的生产工艺
EP3636808A1 (fr) * 2018-10-10 2020-04-15 Evonik Operations GmbH Filaments de polyamide étiré
CN109183233B (zh) * 2018-10-12 2023-12-15 杭州永盛高纤股份有限公司 一种涤纶长丝的拉伸装置
DE102020114761A1 (de) * 2019-06-19 2020-12-24 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Schmelzspinnen einer Vielzahl von Filamenten

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US2604667A (en) * 1950-08-23 1952-07-29 Du Pont Yarn process
NL7101603A (fr) * 1971-02-06 1972-08-08
DE2117659A1 (de) * 1971-04-10 1972-10-19 Farbwerke Hoechst AG, vormals Meister Lucius & Brüning, 6000 Frankfurt Verfahren zum Herstellen von Fäden und Fasern
FR2299438A1 (fr) * 1974-06-10 1976-08-27 Rhone Poulenc Textile Procede et dispositif pour la fabrication de nappes non tissees en fils continus thermoplastiques
DE2925006C2 (de) * 1979-06-21 1983-06-30 Akzo Gmbh, 5600 Wuppertal Verfahren zur Herstellung schmelzgesponnener und molekularorientierend verstreckter, kristalliner Filamente
EP0056963B2 (fr) * 1981-01-19 1991-01-02 Asahi Kasei Kogyo Kabushiki Kaisha Fibre de polyester pouvant être teinte à la pression normale et procédé pour la produire
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

Non-Patent Citations (1)

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Title
See references of WO9836110A1 *

Also Published As

Publication number Publication date
BR9807833A (pt) 2000-02-22
JP2000509770A (ja) 2000-08-02
WO1998036110A1 (fr) 1998-08-20
CN1247578A (zh) 2000-03-15
CA2280872A1 (fr) 1998-08-20
DE19705113C2 (de) 1999-04-29
DE19705113A1 (de) 1998-08-13

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