EP0826802A1 - Procédé de filature des fils multifilaments - Google Patents

Procédé de filature des fils multifilaments Download PDF

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Publication number
EP0826802A1
EP0826802A1 EP97113582A EP97113582A EP0826802A1 EP 0826802 A1 EP0826802 A1 EP 0826802A1 EP 97113582 A EP97113582 A EP 97113582A EP 97113582 A EP97113582 A EP 97113582A EP 0826802 A1 EP0826802 A1 EP 0826802A1
Authority
EP
European Patent Office
Prior art keywords
filaments
cooling
zone
side wall
cooling zone
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.)
Granted
Application number
EP97113582A
Other languages
German (de)
English (en)
Other versions
EP0826802B1 (fr
Inventor
Heinz Dr. Schippers
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik 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
Application filed by Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0826802A1 publication Critical patent/EP0826802A1/fr
Application granted granted Critical
Publication of EP0826802B1 publication Critical patent/EP0826802B1/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
    • 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
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
    • 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

Definitions

  • the invention relates to a method and an apparatus for spinning a multifilament thread according to the preamble of claim 1 and Preamble of claim 9.
  • the process is characterized in that the filaments after exiting are not directly exposed to cross-flow blowing from the spinneret.
  • the filaments first pass through a first cooling zone to stabilize the Thread cross-section. This ensures a high uniformity of the filaments achieved.
  • the Frozen molecular chains with a pre-orientation When cooling further in a second cooling zone, however, specified take-off speed of e.g. 3,000 m / min. the Frozen molecular chains with a pre-orientation. That way The pre-oriented thread (POY) produced has a reduced elongation at break and thus a reduced stretchability in the further processing process.
  • specified take-off speed e.g. 3,000 m / min.
  • a method is also known from EP 0 334 604 in which the After exiting the spinneret, filaments enter a blow.
  • the filaments are cooled with tempered air, with the upper one Area a weaker cooling effect than is aimed for in the lower area.
  • the filaments are cooled directly with a Airflow blown, so that especially with thin filaments Irregularities occur.
  • the nozzle plate emerging filaments are first cooled in a first cooling zone. Thereby it is achieved that the filament skin solidifies first. So it can't more that the molten filament flows away, i.e. Forms thickening or thinning. Thus, a high one Uniformity of the filaments achieved.
  • the thread then reheated in a heating zone, to a temperature that is within the plasticizing range of the polymer, but below that Solidification temperature. As a result, the frozen molecular chains broken open again, so that the mobility of the molecular chains to a Disorientation leads. Then the filaments are again in one cooled in the second cooling zone.
  • the inventive method has the advantage that Disorientation an increase in the elongation at break of the thread is achieved and a subsequent one at a given take-off speed Stretchability of the thread can be increased.
  • the filaments in the heating zone are advantageously heated by Spotlight.
  • radiant heaters are preferably used Have a surface temperature of more than 400 ° C.
  • the process variant in which the filaments are cooled in the first cooling zone with weak blowing is especially for Production of technical yarn.
  • the filaments in the second cooling zone can be cooled using Blowing as well as without blowing. Leave depending on the combination the physical properties of the thread are thus advantageously established.
  • the Device according to the invention on both sides of the filament bundle Has radiant heater.
  • the radiant heaters are heated Reflector plates arranged in the blow duct. It is advantageous here if an already warmed air flow is supplied by the cross-flow blowing becomes. Through the reflector plates, the through the filament bundle cooled air flow heated again and returned to the filament bundle. This ensures high uniformity of the heat treatment of the filaments causes.
  • a spinning system is shown schematically, which from a spinning zone I, a stretching zone II and a winding zone III.
  • the extruder 3 is driven by a motor 4.
  • the motor 4 is controlled by a motor controller 8.
  • the extruder it will melted thermoplastic material.
  • the Deformation work that is introduced into the material by the extruder.
  • a heating device 5 in the form of a resistance heater provided, which is controlled by a heating controller 43.
  • Through the Melt line passes the melt to the gear pump 9 through the Pump motor 44 is driven.
  • the melt pressure before the pump will detected by the pressure sensor 7 and by feedback of the pressure signal the engine control 8 kept constant.
  • the pump motor is controlled by the pump controller 45 in such a way that that the pump speed can be adjusted sensitively.
  • the pump 9 promotes the Melt flow to the heated spin box 10, on the underside of which the spinneret 11 is located in a nozzle pot 53. Exits from the spinneret 11 the melt in the form of fine filament strands 12.
  • the Filament strands 12 pass through a cooling shaft 14 of a device for Cooling of the filaments.
  • the device is vertically below the Nozzle plate 11 arranged.
  • the filaments 12 pass through air-impermeable walls limited first cooling zone 46. That a heating zone 47 is then provided, in which the filament strands 12 can be heated by means of a radiator 52.
  • a second cooling zone 48 in which a transverse to A stream of filaments directed through an air-permeable blower wall flows.
  • the device is connected to an air supply 15.
  • the filament sheet is through a Preparation roller 13 combined into a thread 1 and with a Provide the preparation liquid.
  • the thread 1 then enters the Stretching zone II.
  • the string wraps around the trigger godet several times.
  • the overflow roller 17 is free rotatable.
  • the godet 16 is by the godet motor 18 and the Frequency generator 22 driven at a preset speed. This withdrawal speed is many times higher than the natural one Exit speed of the filaments from the spinneret 11.
  • the speed of the take-off godet 16 can be set. This will make the Pull-off speed of the thread 1 from the nozzle plate 11 is determined.
  • the stretching motor 21 is used to drive the stretching godet 19 with the frequency transmitter 23.
  • the input frequency of the frequency converters 22 and 23 is controlled by the controllable frequency generator 24 given. In this way, the frequency converter 22 and 23 individually the speed of the take-off godet 16 or the extending godet 19 can be set.
  • the speed level of the trigger godet 16 and Plug-in godet 19, on the other hand, is collectively used by the frequency converter 24 set.
  • the thread 1 runs into the winding zone III and there to the head thread guide 25 and from there into the traversing triangle 26.
  • the thread then runs into a traversing device (not shown here), the thread by means of guide elements along a traverse stroke and brought here.
  • the traversing device is as Reverse thread roller with a traversing thread guide or as Wing traversing device executable.
  • the runs from the traversing device Thread over a contact roller 28 to the bobbin 33 to be wound Contact roller 28 lies on the surface of the coil 33. It is used for Measurement of the surface speed of the coil 33.
  • the coil 33 is formed on a sleeve 35.
  • the sleeve 35 is on a winding spindle 34 spanned.
  • the spindle 34 is driven by the spindle motor 36 and Spindle control 37 driven such that the surface speed the coil 33 remains constant.
  • the speed of the freely rotatable contact roller 28 on the contact roller shaft 29 by means of a ferromagnetic insert 30 and a magnetic pulse generator 31st sensed and corrected.
  • the method according to the invention for spinning a multifilament thread is not limited to the arrangement shown in FIG. 1. Basically is the method can also be carried out in such an arrangement in which the Stretch zone II has only one take-off godet. It is also possible that Spinning zone I can be operated directly with winding zone III, i.e. without godets.
  • FIG. 2 shows a further exemplary embodiment of a device for Cooling of the filaments shown in the spinning zone.
  • a cooling shaft 14 receiving the filaments 12 Blow boxes 54 and 64 arranged on both sides are formed.
  • the blow boxes 54 and 64 have the air-impermeable side walls 51 and 61.
  • Sidewalls 51 and 61 form the first cooling zone.
  • the first cooling zone depends on Polymer type and thread type have a length of approx. 250 mm to 500 mm.
  • the radiant heaters 52.1 - 52.3 and 62.1 - 62.3 are included Distance to each other in the cooling shaft 14 parallel to Filament bundle 12 arranged so that an air inlet between the Radiant heaters in the cooling shaft 14 is possible.
  • the radiant heaters point a surface temperature that is above 400 ° C.
  • Below the The cooling shaft 14 becomes a radiant heater through air-permeable side walls 53 and 50 formed.
  • the blow box 54 and the blow box 64 are each on an air supply 15 connected.
  • the blown air now passes over the gaps between the radiant heaters 52.1 - 52.3 and 62.1 - 62.3 and through the air-permeable blowing wall 53 and 50 into the cooling shaft 14 inside.
  • the preparation roller 13 is below the cooling shaft 14 arranged where the filament bundle 12 merged into a thread 1 becomes.
  • FIG. 3 A cross section of the heating zone of a blow chamber 54 is shown in FIG. 3.
  • the filament bundle 12 passes through the cooling shaft 14 Cooling shaft 14 is limited by the side walls 57 and 58.
  • the blowing chamber 54 with the blowing wall 53 is of such a type transverse to the filament bundle arranged that the inflowing air in the blow chamber 54 through the Blower wall flows across the filaments along side walls 57 and 58.
  • Opposite the blower wall 53 on the opposite side of the A reflector plate 55 is arranged in the filament bundle.
  • the reflector plate is heated by a resistance heating wire 56. This will be a direct one Heating of the filaments and heating of the cooling air flowing back generated.
  • FIG. 4 is a further embodiment of a device for Cooling of the filaments shown in the spinning zone.
  • the arrangement shown is the side walls 51 and 61 of the cooling shaft 14 air permeable directly below the spinneret 11. Likewise, they are Radiant heaters 52.1 - 52.3 arranged on both sides of the filament bundle and 62.1 - 62.3 again arranged at a distance. This enables that the ambient air can flow into the blow duct and thus leads in particular to a better cooling effect in the first cooling zone.
  • the blow box 59 is connected to the air supply 15 connected.
  • the blow walls 53 and 50 are permeable to air, so that a Airflow from the blow chambers 59 and 60 across the filament bundle 12 in flows into the cooling shaft 14.
  • Below the cooling shaft 14 is again a preparation device 13 is arranged to form the thread 1.
  • the second cooling zone 48 is high in the processes Withdrawal speeds are also advantageously designed such that a self-priming air flow is drawn into the blow duct 14. Here active blowing would be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP97113582A 1996-08-28 1997-08-06 Procédé et dispositif de filature des fils multifilaments Expired - Lifetime EP0826802B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19634724 1996-08-28
DE19634724 1996-08-28

Publications (2)

Publication Number Publication Date
EP0826802A1 true EP0826802A1 (fr) 1998-03-04
EP0826802B1 EP0826802B1 (fr) 2001-11-28

Family

ID=7803896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97113582A Expired - Lifetime EP0826802B1 (fr) 1996-08-28 1997-08-06 Procédé et dispositif de filature des fils multifilaments

Country Status (3)

Country Link
US (1) US5928587A (fr)
EP (1) EP0826802B1 (fr)
DE (1) DE59705511D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004005594A1 (fr) * 2002-07-05 2004-01-15 Diolen Industrial Fibers B.V. Procede de filature
CN101981239B (zh) * 2007-07-21 2013-03-06 戴奥伦工业纤维有限公司 纺丝方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1366221A4 (fr) 2000-09-15 2006-01-18 First Quality Fibers Llc Appareil de fabrication d'une fibre optique faite d'un polymere semi-cristallin
US7384583B2 (en) * 2001-04-06 2008-06-10 Mitsui Chemicals, Inc. Production method for making nonwoven fabric
JP2002302862A (ja) * 2001-04-06 2002-10-18 Mitsui Chemicals Inc 不織布の製造方法及び装置
WO2005095683A1 (fr) * 2004-03-16 2005-10-13 Saurer Gmbh & Co. Kg Dispositif de filage par fusion et de refroidissement
ITMI20041137A1 (it) * 2004-06-04 2004-09-04 Fare Spa Apparecchiatura per il trattamento di filati sintetici
US8282384B1 (en) 2011-04-15 2012-10-09 Thomas Michael R Continuous curing and post curing apparatus
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
WO2015044953A1 (fr) * 2013-09-26 2015-04-02 Reliance Industries Limited Système, procédé et dispositif pour refroidir des fibres multifilaments synthétiques
CN117552119B (zh) * 2024-01-08 2024-04-30 江苏恒力化纤股份有限公司 一种高尺寸稳定性高模低缩涤纶工业丝的制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732346A (en) * 1970-08-10 1973-05-08 Allied Chem Method to produce spun-drawn polycaprolactam yarn having improved resistance to ozone fading
US4909976A (en) * 1988-05-09 1990-03-20 North Carolina State University Process for high speed melt spinning
JPH07118915A (ja) * 1993-10-20 1995-05-09 Showa Denko Kk マルチフィラメントの製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529368A (en) * 1983-12-27 1985-07-16 E. I. Du Pont De Nemours & Company Apparatus for quenching melt-spun filaments
JP2674656B2 (ja) * 1988-03-24 1997-11-12 三井石油化学工業株式会社 紡糸装置における溶融フィラメントの冷却方法並びにその装置
US5173310A (en) * 1988-03-24 1992-12-22 Mitsui Petrochemical Industries, Ltd. Device for cooling molten filaments in spinning apparatus
TW288052B (fr) * 1994-06-30 1996-10-11 Du Pont
DE59608283D1 (de) * 1995-02-10 2002-01-10 Barmag Barmer Maschf Verfahren zur Herstellung eines multifilen Fadens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732346A (en) * 1970-08-10 1973-05-08 Allied Chem Method to produce spun-drawn polycaprolactam yarn having improved resistance to ozone fading
US4909976A (en) * 1988-05-09 1990-03-20 North Carolina State University Process for high speed melt spinning
JPH07118915A (ja) * 1993-10-20 1995-05-09 Showa Denko Kk マルチフィラメントの製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 095, no. 008 29 September 1995 (1995-09-29) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004005594A1 (fr) * 2002-07-05 2004-01-15 Diolen Industrial Fibers B.V. Procede de filature
US7731876B2 (en) 2002-07-05 2010-06-08 Diolen Industrial Fibers B.V. Spinning method
KR101143536B1 (ko) * 2002-07-05 2012-05-09 어플라이드 폴리머 이노베이션즈 엠멘 비.브이. 방사방법
US8182915B2 (en) 2002-07-05 2012-05-22 Diolen Industrial Fibers B.V. Spinning method
CN101981239B (zh) * 2007-07-21 2013-03-06 戴奥伦工业纤维有限公司 纺丝方法

Also Published As

Publication number Publication date
DE59705511D1 (de) 2002-01-10
EP0826802B1 (fr) 2001-11-28
US5928587A (en) 1999-07-27

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