EP0726338A2 - Procédé de fabrication d'un fil multifilament - Google Patents

Procédé de fabrication d'un fil multifilament Download PDF

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Publication number
EP0726338A2
EP0726338A2 EP96100162A EP96100162A EP0726338A2 EP 0726338 A2 EP0726338 A2 EP 0726338A2 EP 96100162 A EP96100162 A EP 96100162A EP 96100162 A EP96100162 A EP 96100162A EP 0726338 A2 EP0726338 A2 EP 0726338A2
Authority
EP
European Patent Office
Prior art keywords
thread
nozzle plate
speed
melt
take
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
EP96100162A
Other languages
German (de)
English (en)
Other versions
EP0726338B1 (fr
EP0726338A3 (fr
Inventor
Heinz Dr. Schippers
Erich Lenk
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 Textile GmbH and Co KG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7753631&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0726338(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0726338A2 publication Critical patent/EP0726338A2/fr
Publication of EP0726338A3 publication Critical patent/EP0726338A3/fr
Application granted granted Critical
Publication of EP0726338B1 publication Critical patent/EP0726338B1/fr
Anticipated expiration legal-status Critical
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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
    • D01D5/098—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
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • 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
    • 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

Definitions

  • the invention relates to a method for producing a multifilament thread according to the preamble of claim 1.
  • the thread is fed into a drawing stage immediately after spinning and wound up after passing through the drawing stage.
  • the object of the invention is to increase production.
  • the solution according to claim 1 is based on a continuous production process.
  • the desired final titer of the thread to be produced and the desired delivery quantity result in the winding speed of the thread, which essentially corresponds to the final speed of the drafting system.
  • the draw-off speed of the thread results from the spinneret or vice versa: by specifying a desired draw-off speed, the draw ratio results in both cases according to the specified physical relationship. Only through the measure according to the invention is it possible to increase productivity to a significant extent, since only through the invention can this physical connection between take-off speed and stretchability be broken.
  • Claim 2 is based on a discontinuous manufacturing process in which the thread is spun and wound up in the spinning stage and drawn and wound up again in the subsequent drawing stage.
  • the withdrawal speed is specified here within suitable limits.
  • the take-off speed must be selected so that the pre-oriented thread can be produced safely and without filament breaks. This is particularly necessary in the case of high-strength threads or threads with a large number of filaments in which there is a risk of filament breaks as a result of high air friction and the resulting deterioration in the thread quality or interruption of the spinning process.
  • the solution according to claim 2 permits an increase in productivity by increasing the delivery rate, with one alternative winding a thread in the spinning stage with a winding speed that is not increased but with an increased titer of the pre-oriented thread and stretching in the stretching stage with an increased stretching ratio.
  • the increase in the delivery rate results in an increase in the winding speed in the spinning stage and thus in an increase in productivity in the spinning stage.
  • the subsequent stretching is carried out as is conventional.
  • the solution according to claim 4 mainly prevents the orientation of the molecules in the spinneret. It must be known that the pre-orientation of the thread or the thread molecules is largely caused by the flow conditions in the narrow nozzle holes. The measure according to claim 4 prevents this flow orientation from freezing and leading to a corresponding pre-orientation.
  • the aim is to heat the nozzle plate by more than 5 ° C., preferably 5 to 3 ° C. In the tests, the temperature was around 10 ° C.
  • DE-OS 1905507 is used to heat the nozzle plate to compensate for the heat losses for a conventional spinning process known low take-off speeds without pre-orienting the thread.
  • the heating of the nozzle plate according to claim 4 can, for. B. done by laying resistance heating wires in or on the nozzle plate.
  • the resistance heating wires can then be operated at a desired temperature.
  • the solution according to claim 5 has the additional advantage that no significant change to the spinning device is required. It also prevents the accumulation of dirt, oligomers and monomers on the nozzle plate.
  • the embodiment according to claim 6 ensures that the nozzle plate is heated uniformly over its entire surface.
  • the solution according to claim 7 ensures that the nozzle plate is easily accessible for cleaning and scraping off deposits.
  • polyester is polyethylene terephthalate.
  • nylon 6 Perlon
  • nylon 6.6 are used as polyamides. It is expressly noted that the following process data for polyester are given. They apply accordingly to polyamide threads with deviations that have to be determined by experiment.
  • a thread 1 is spun from a thermoplastic material.
  • the thermoplastic material is fed to the extruder by a filling device 3 abandoned.
  • the extruder 3 is driven by a motor 4.
  • the motor 4 is controlled by a motor controller 8.
  • the thermoplastic material is melted in the extruder. This is done on the one hand by the deformation work which is introduced into the material by the extruder.
  • a heating device 5 is provided in the form of a resistance heater, which is controlled by a heating controller 43.
  • the melt passes through the melt line to the gear pump 9, which is driven by the pump motor 44.
  • the melt pressure upstream of the pump is detected by pressure sensor 7 and kept constant by feedback of the pressure signal to the motor control 8.
  • the pump motor is controlled by the pump controller 45 in such a way that the pump speed can be set sensitively.
  • the pump 9 conveys the melt flow to the heated spinning box 10, on the underside of which the spinneret 11 is located in a nozzle pot 53 (cf. FIG. 4).
  • the melt emerges from the spinneret 11 in the form of fine filament strands 12.
  • the filament strands pass through a cooling shaft 14.
  • an air flow is directed transversely or radially onto the filament sheet by blowing 15 and is thereby cooled.
  • the filament sheet is combined into a thread 1 by a preparation roller 13 and provided with a preparation liquid.
  • the thread is drawn out of the cooling shaft and from the spinneret through a take-off godet 16.
  • the thread wraps around the trigger godet several times.
  • an overflow roller 17 is arranged which is crossed over to the godet 16.
  • the overflow roller 17 is freely rotatable.
  • the godet 16 is powered by a godet motor 18 and frequency generator 22 driven at a preset speed. This withdrawal speed is many times higher than the natural exit speed of the filaments from the spinneret 11.
  • the speed of the take-off godet 16 can be adjusted. This determines the speed at which the thread 1 is drawn off from the nozzle plate 11.
  • the take-off godet 16 is followed by a draw godet 19 with a further overflow roller 20.
  • the structure of both of them corresponds to that of the take-off godet 16 with overflow roller 17.
  • the stretch motor 21 with the frequency generator 23 is used to drive the draw godet 19 Frequency generator 24 predetermined evenly.
  • the speed of the take-off godet 16 or the stretch godet 19 can be set individually on the frequency converters 22 and 23.
  • the speed level of the take-off godet 16 and the stretching godet 19, on the other hand, is set collectively on the frequency converter 24.
  • the thread 1 arrives at the so-called “head thread guide” 25 and from there into the traversing triangle 26.
  • the following description relates to the winding stage of the process according to FIG. 1 and the process according to FIG. 2 in the same way.
  • the traversing device is not shown in both figures.
  • a reversing thread roller and a traversing thread guide guided therein which guides the thread back and forth over the length of the bobbin 33.
  • the thread wraps around a contact roller 28 behind the traversing device 27.
  • the contact roller 28 lies on the surface of the bobbin 33. It is used to measure the surface speed of the coil 33.
  • the coil 33 is formed on a sleeve 35.
  • the sleeve 35 is clamped on a winding spindle 34.
  • the spindle 34 is driven by the spindle motor 36 and spindle control 37 in such a way that the surface speed of the coil 33 remains constant.
  • the speed of rotation of the freely rotatable contact roller 28 on the contact roller shaft 29 is scanned and corrected by means of a ferromagnetic insert 30 and a magnetic pulse generator 31.
  • the winding speed can be matched to the peripheral speed of the stretching godet 19 by adjusting the spindle control 37.
  • the thread running from the take-off godet 16 is guided directly to the head thread guide 25 and into the traversing triangle 26.
  • a coordination between the circumferential speed of the winding spindle 33 and the take-off speed, which is predetermined by the take-off godet 16, takes place in a corresponding manner.
  • the peripheral speed of the bobbin 33 which is scanned and corrected by the contact roller 28, is slightly lower than the peripheral speed of the upstream godets 16 and 19, respectively.
  • the wound thread speed is namely geometrical Sum of the peripheral speed of the coil 33 and the traversing speed of the traversing device 27, not shown.
  • FIG. 3 schematically shows a stretch texturing process.
  • the bobbin 33 with pre-oriented thread which was produced in the spinning process according to FIG. 2, is presented to a stretch texturing machine.
  • the pre-oriented thread is guided through thread guide 38 to an input delivery unit 39, from there through the heater 46, through the cooling rail 47, through the friction false twister and to the output delivery unit 50. It is then wound on the spool 52.
  • the delivery mechanisms 39 and 50 are driven at different speeds. As a result, the necessary stretching takes place in the false twist zone between these supplying plants simultaneously with the heating and false twist texturing.
  • FIGS. 1 and 2 and 3 are described in detail below.
  • a thread with a final titer of 2 filament titer can be generated.
  • the take-off speed should be 3,000 m / min. Under normal circumstances, i.e. without heating the nozzle plate, this results in an elongation at break of the thread produced of 120%. That is, in other words, the pre-oriented, drawn thread can be stretched to 220% of its length until it breaks. It follows that the draw ratio is about 2/3 of this value, e.g. B. is 1: 1.6. This results in a take-off speed of 4,800 m / min. With a single filament titer of - as mentioned - 2 den / filament and a filament number of 72, this results in a total denier of 150 den.
  • the take-off speeds are now increased to 4,000 m / min.
  • a draw ratio is selected approximately in the range of 2/3, the draw ratio is 1: 1.2. This means that the withdrawal speed has not increased.
  • a radiator according to FIG. 4 is used underneath the nozzle plate.
  • This radiator is described in the following for the process according to FIGS. 1 and 2 in the same way.
  • the nozzle plate 11 is seated in the nozzle pot 53.
  • the nozzle pot 53 is accommodated in the heating box 10.
  • the heater box 10 is heated. Details are not shown here.
  • the radiation heater 56 is located below and in direct connection to the nozzle plate.
  • the radiation heater 56 is designed as a ring and made of steel. Its inner surface 58 facing the center is formed by a conical surface which faces the nozzle plate. A suitable cone angle (total angle) is z. B. 30 to 40 °.
  • In the radiant heater is an annular one Heating tape 57 inserted. It is a resistance heating wire. This resistance heating wire allows the radiant heater to glow red-hot to temperatures above 300 ° to approx. 800 °. Very effective temperatures result in the temperature range between 450 and 700 °.
  • the blower 51 follows below the radiant heater as described.
  • the extent of the productivity increase depends on the one hand on the irradiation temperature and on the other hand on the thread titer. With larger thread titers, the effect is less or the illumination temperature will have to be chosen higher.
  • the connection can be determined in individual cases by experiment.
  • the procedure for the method according to FIG. 2 is as follows: To be manufactured z. B. a textured thread 55 f 109, ie a thread of 55 den and 109 individual filaments. This means that each thread has a single denier of 0.5 den per filament (dpf).
  • the stretching is determined at 1.6 as optimal for the stretch texturing process. This stretching allows good crimping and a safe texturing process without filament breaks.
  • This draw ratio means that a pre-oriented thread has to be placed on bobbin 33, which has a titer of 88 den with 109 filaments. In order to pre-orient such a thread so that the draw ratio can be maintained at 1.6, a 1/2 to 1/3 higher elongation at break must be set.
  • the elongation at break must be approximately 220%. From the diagram according to FIG. 5 or the table, this results in a take-off speed of 2,600 m / min, which is set in the process according to FIG. 2 by take-off godets 16.
  • the delivery rate on the pump In order to produce a pre-oriented thread of 88 den at a take-up speed of 2,600 m / min, the delivery rate on the pump must be set to 25.5 g / min for each spinning station. An increase in the delivery rate is not possible, since otherwise the withdrawal speed and thus the stretchability will also be changed.
  • the stretchability which is specified by the texturer, thus limits the productivity of the producer of the pre-oriented thread.
  • a textured thread 55 f 109 is to be produced.
  • the take-off speed and winding speed of 3,000 m / min should not be exceeded in the winding zone.
  • process difficulties with sensitive yarns can also be caused by the mechanical design of the rewinder, the maximum speed of which is limited.
  • the drawing ratio can thus be set at approximately 2/3 of this value, ie: 1.45.
  • the peculiarity of the invention is that the melt is heated in the nozzle plate.
  • the nozzle plate is heated, in addition to the supply of heat that occurs from the melt and from the surrounding spin pot and the surrounding spin box.
  • the temperature of the nozzle plate is preferably increased by at least 5 ° C. and up to 40 ° C. In the experiments, there were advantageous increases in temperature of 8 to 20 ° C.
  • the starting point is always the temperature that results from the contact of the nozzle plate with the melt and the heated spinning box. At - normal travel - relatively low temperature of the nozzle plate, the heating by additional heat must be correspondingly greater.
  • the annular radiator has the advantage over the fact that, on the one hand, it prevents the nozzle and in particular the underside of the nozzle from being hit directly by the blowing underneath. On the other hand, there is sufficient air exchange within the annular radiator to remove vapors, especially monomers and oligomers, and to avoid impermissible deposits on the underside of the nozzle. To clean the underside of the nozzle, the radiator is hung on one side in a hinge so that it can be folded down.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
EP96100162A 1995-02-10 1996-01-08 Procédé de fabrication d'un fil multifilament Expired - Lifetime EP0726338B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19504422 1995-02-10
DE19504422 1995-02-10

Publications (3)

Publication Number Publication Date
EP0726338A2 true EP0726338A2 (fr) 1996-08-14
EP0726338A3 EP0726338A3 (fr) 1996-11-06
EP0726338B1 EP0726338B1 (fr) 2001-11-28

Family

ID=7753631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100162A Expired - Lifetime EP0726338B1 (fr) 1995-02-10 1996-01-08 Procédé de fabrication d'un fil multifilament

Country Status (6)

Country Link
US (1) US5661880A (fr)
EP (1) EP0726338B1 (fr)
KR (1) KR100426837B1 (fr)
CN (1) CN1185374C (fr)
DE (1) DE59608283D1 (fr)
TW (1) TW380174B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5928587A (en) * 1996-08-28 1999-07-27 Barmag Ag Process and apparatus for cooling melt spun filaments during formation of a multi-filament yarn
US6129882A (en) * 1998-03-13 2000-10-10 Sml Maschinengesellschaft M.B.H. Apparatus for manufacturing multifilament threads
CN103114365A (zh) * 2013-03-13 2013-05-22 盛虹集团有限公司 复合丝雪纺面料中纬丝的织造方法
CN103556241A (zh) * 2013-10-30 2014-02-05 苏州龙杰特种纤维股份有限公司 纺织纤维生产系统
CN105821498A (zh) * 2016-05-27 2016-08-03 浙江显昱纤维织染制衣有限公司 一种纺丝机的拉伸结构

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CN1089380C (zh) * 1998-05-22 2002-08-21 孙世杰 高速、低成本全牵伸长丝纺丝工艺及其设备
US6336801B1 (en) * 1999-06-21 2002-01-08 Kimberly-Clark Worldwide, Inc. Die assembly for a meltblowing apparatus
US6332994B1 (en) 2000-02-14 2001-12-25 Basf Corporation High speed spinning of sheath/core bicomponent fibers
EP1297201B1 (fr) * 2000-06-23 2008-07-30 INVISTA Technologies S.à.r.l. Machine à filer comprenant filière avec anneau de distribution de vapeur
CA2421635A1 (fr) 2000-09-15 2002-03-21 First Quality Fibers, Llc Appareil de fabrication d'une fibre optique faite d'un polymere semi-cristallin
DE10227290A1 (de) * 2002-06-19 2004-01-08 Barmag Ag Vorrichtung zum Führen, Behandeln und Fördern von zumindest einem Faden
DE10235936A1 (de) * 2002-08-06 2004-02-19 Barmag Ag Vorrichtung zum Spinnen und Aufwickeln
CN1742123A (zh) * 2003-01-24 2006-03-01 苏拉有限及两合公司 用于多股合成复合丝的卷曲变形的装置和方法
DE102005045496A1 (de) * 2005-09-23 2007-03-29 Saurer Gmbh & Co. Kg Vorrichtung zum Schmelzspinnen und Abziehen eines Fadens
DE102010006659A1 (de) * 2010-02-03 2011-08-04 Oerlikon Textile GmbH & Co. KG, 42897 Vorrichtung zum Abziehen oder Führen synthetischer Fäden
US8282384B1 (en) * 2011-04-15 2012-10-09 Thomas Michael R Continuous curing and post curing apparatus
TWM427214U (en) 2011-12-13 2012-04-21 Zhi-Hong Chen Sealed oil path type roller apparatus
CN111148866A (zh) * 2017-09-22 2020-05-12 可隆工业株式会社 高强度聚对苯二甲酸乙二醇酯纱线及其制造方法
JP7773880B2 (ja) * 2021-10-01 2025-11-20 Ｔｍｔマシナリー株式会社 紡糸設備、及び紡糸巻取設備
CN114808158B (zh) * 2022-04-07 2023-06-09 桐昆集团浙江恒盛化纤有限公司 高匀度纤维的生产方法及其生产设备
WO2025192660A1 (fr) * 2024-03-13 2025-09-18 株式会社クラレ Dispositif de chauffage annulaire
CN118480871B (zh) * 2024-07-09 2024-11-19 江苏恒力化纤股份有限公司 一种超细丝的生产方法

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5928587A (en) * 1996-08-28 1999-07-27 Barmag Ag Process and apparatus for cooling melt spun filaments during formation of a multi-filament yarn
US6129882A (en) * 1998-03-13 2000-10-10 Sml Maschinengesellschaft M.B.H. Apparatus for manufacturing multifilament threads
CN103114365A (zh) * 2013-03-13 2013-05-22 盛虹集团有限公司 复合丝雪纺面料中纬丝的织造方法
CN103556241A (zh) * 2013-10-30 2014-02-05 苏州龙杰特种纤维股份有限公司 纺织纤维生产系统
CN105821498A (zh) * 2016-05-27 2016-08-03 浙江显昱纤维织染制衣有限公司 一种纺丝机的拉伸结构

Also Published As

Publication number Publication date
TW380174B (en) 2000-01-21
US5661880A (en) 1997-09-02
CN1185374C (zh) 2005-01-19
DE59608283D1 (de) 2002-01-10
CN1136093A (zh) 1996-11-20
KR100426837B1 (ko) 2004-06-18
EP0726338B1 (fr) 2001-11-28
KR960031662A (ko) 1996-09-17
EP0726338A3 (fr) 1996-11-06

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