EP0530652A2 - Dispositif de filage à grande vitesse de fils multifilaments et son utilisation - Google Patents

Dispositif de filage à grande vitesse de fils multifilaments et son utilisation Download PDF

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Publication number
EP0530652A2
EP0530652A2 EP92114493A EP92114493A EP0530652A2 EP 0530652 A2 EP0530652 A2 EP 0530652A2 EP 92114493 A EP92114493 A EP 92114493A EP 92114493 A EP92114493 A EP 92114493A EP 0530652 A2 EP0530652 A2 EP 0530652A2
Authority
EP
European Patent Office
Prior art keywords
spinneret
porous tube
filaments
cooling
yarns
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
EP92114493A
Other languages
German (de)
English (en)
Other versions
EP0530652B1 (fr
EP0530652A3 (en
Inventor
Diederich Dr. Schilo
Wolfgang Peschke
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.)
diolen Industrial Fibers GmbH
Original Assignee
Akzo NV
Akzo Nobel NV
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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Priority claimed from DE4129521A external-priority patent/DE4129521A1/de
Application filed by Akzo NV, Akzo Nobel NV filed Critical Akzo NV
Publication of EP0530652A2 publication Critical patent/EP0530652A2/fr
Publication of EP0530652A3 publication Critical patent/EP0530652A3/de
Application granted granted Critical
Publication of EP0530652B1 publication Critical patent/EP0530652B1/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
    • D01D5/098—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
    • D01D5/084—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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys

Definitions

  • the present invention relates to a device for the rapid spinning of multifilament threads from thread-forming polymers at winding speeds of at least 2,000 m / min with a spinneret, a cooling device for solidifying the threads, a merging element for the filaments and a winding, at least between the nozzle and the former Merging member is provided a substantially vertical spinning line.
  • the invention also relates to the use of this device for the production of polyester filament yarns.
  • Winding speed of the multifilament threads is an essential factor for reasons of economy. Winding speeds of 3 500 to about 5,000 m / min are common today, winding speeds of more than 5,000 m / min to about 12,000 m / min are also known. At these high Winding speeds, especially at winding speeds above 5,000 m / min, result from the previously known manufacturing processes that the structural design of the device used for manufacturing plays an increasingly important role, while process engineering features are increasingly in the background.
  • EP-A-56 963 describes a process for producing a polyester fiber with a winding speed of at least 5,000 m / min, in which the extruded filaments first pass through a heating zone with a length of at least 50 mm and then directly into a suction device before they are wound up.
  • the device described for carrying out the known method is distinguished by a simple structure.
  • EP-A-95 712 A further simplification of this known device results from EP-A-95 712, in which below the heating zone there is firstly a cooling device for solidifying the threads and then a merging element for the filaments, after which the multifilament yarn is wound up.
  • Essential components of this device are the heating zone below the spinneret, the location of the bundling of the filaments and the winding speed of 7,000 m / min and more.
  • EP-A-117 215 A similar device is described in EP-A-117 215, in which in addition to the location where the filaments are brought together, the distance between the nozzle and the winding is also indicated as an essential feature.
  • EP-A-244 216 states that, under controlled conditions, the cooling air is to be supplied radially from the outside inwards via a wire mesh cylinder. This device additionally requires a strong reduction in the outlet cross section of the wire mesh cylinder, which merges into a narrow tube, so that piecing is associated with very great effort.
  • the filament threads are spun in a closed spinning chamber. If this spinning chamber is used as a cooling device, the cooling air is extracted via an injector. The injector must first be removed for piecing, which makes piecing very complex.
  • the object of the present invention is to provide a device of the type mentioned at the outset, which has an uncomplicated structure and for the production of multifilament threads from thread-forming polymers with winding speeds of at least 2,000 m / min, in particular of at least 5,000 m / min is suitable, in which also the piecing can be carried out easily, and its use for the production of multifilament threads is particularly versatile.
  • the cooling device is a porous tube which is open in the spinning direction and which is arranged concentrically to the spinning line, the porous tube having no further cooling medium added or laxative facilities are upstream or downstream.
  • the cooling device of the device Because of the simple design of the cooling device of the device according to the invention, it is also very simple to adapt the length of the tube to an optimal course of the spinning. All that is required is a set of porous tubes of different lengths in the range from 200 to 1,800 mm to be provided, the lengths of the individual tubes, for example, differing by about 100 mm each. For further simplification, however, the porous tube can also be made telescopic.
  • a length of the porous tube of 200 to 1200 mm is particularly suitable for the production of FOY yarns, which are wound up at a speed of 5,000 to 10,000 m / min, while for POY yarns, which are usually at 2 000 to 5,000 m / min, a porous tube with a length of 900 to 1,800 mm should be used.
  • a porous tube with a length that is in the upper range of the specified lengths should be used to produce thicker filaments or filament yarns with a higher overall denier.
  • porous tube has a constant cross-section in its longitudinal direction, which makes it particularly easy to spin on the device because the filaments pass through the tube zone in free fall and can be collected underneath the tube.
  • tube shapes are also possible, for example frustoconical tubes.
  • the cooling air required to solidify the threads is sucked in by the threads themselves through the porous tube due to the high speed of the threads. Conditioning of the cooling air is not necessary.
  • the normal climate in the area of the device according to the invention is sufficient in particular for polyester filament yarns, which is why the operating personnel can work on the device according to the invention in a comfortable climate.
  • the device according to the invention requires less space than the known devices because no channels for supplying conditioned air are required. When piecing results less waste.
  • the device is also characterized by a particularly low energy requirement, since no conditioning of the cooling air and no further devices influencing the temperature of the thread are required before winding up.
  • the porous tube is cylindrical, the cross section of the cylinder being able to have practically all common geometrical shapes, such as, for example, a circle, ellipse, octagon or hexagon. It is particularly expedient if the inner cross section of the porous tube has at least approximately the same geometrical figure as the outer contour of the filament bundle. This results in a particularly uniform solidification of the individual filaments. It is expedient to choose the distance between the outer contour of the filament bundle and the inner wall of the porous tube at the inlet cross-section so that contact with the tube wall is avoided in any case.
  • the porous tube When selecting the material for the porous tube, it is only necessary to ensure that the porous tube can be attached directly to the spinneret and thus in the in temperatures prevailing in the spinneret have not yet softened. Metals, in particular steel, are particularly suitable for this. At least the porous tube should connect to the spinneret, to the spinning head or to a cooling delay device connected between the spinneret and the porous tube in such a way that in the region of the porous tube air can only enter via the pore system of the porous tube and that uncontrolled inflow of cooling medium in the area below the spinneret is effectively avoided.
  • the porosity of the pipes can be ensured by perforated pipes, but also by sintered metals.
  • all the porous tubes are suitable, the porosity of which, at a flow rate of air at 1 m / s, causes a pressure loss of approximately 3 to 150 Pa, a pressure loss in the range of 10 Pa having been found to be favorable.
  • the porous tube is formed from a metal sieve, a metal sieve with 60 mesh being very suitable.
  • another tube made of perforated plate can be arranged inside the metal sieve tube.
  • the porous tube can be connected directly to the spinneret. Between the spinneret and the porous tube, however, an up to 300 mm long device which hinders the cooling of the filaments and to which the porous tube connects can be interposed.
  • the filament cooling can be impeded, for example, by the fact that the cooling-obstructing device is called from a filament-enveloping device Airflow exists. This results in a particularly uniform, delayed cooling of the filaments.
  • Favorable results are achieved when the hot air jacket has a temperature which corresponds approximately to the temperature of the spinneret.
  • the hot air jacket can be accomplished particularly favorably if the spinneret is a multi-spinneret, in which the pressing out of the melt is provided in the middle, and in which one or more openings are provided concentrically around the center, through which a hot air stream exits the filaments covered. It is particularly advantageous here if the opening arranged concentrically around the center is an annular gap.
  • the use of such spinnerets for delayed cooling of the filaments is known per se from DE-OS 39 41 824 and from EP-A-0 455 897.
  • a hindrance to filament cooling can also be achieved in a particularly simple manner in that the device which hinders the cooling of the filaments is a heated, in particular an unheated, tube.
  • the device that hinders the cooling of the filaments is particularly simple if a section of the portion of the porous tube facing the spinneret that is up to 300 mm long is covered.
  • the covered section is preferably arranged directly below the spinneret.
  • the impediment to filament cooling results in a delayed cooling of the filaments, which promotes an undisturbed spinning process, particularly with low individual titers.
  • the cover of the porous tube is arranged at a distance of 200 to 300 mm away from the spinneret.
  • the device according to the invention has proven particularly useful when the merging member is arranged at a distance of 400 to 2,200 mm from the spinneret, but at least about 100 mm below the porous tube.
  • the merging member can be a thread guide.
  • the merging member is a preparation application device known per se.
  • the device according to the invention particularly large distances between the spinneret and the take-up of, for example, up to 9000 mm can also be achieved.
  • the device according to the invention has proven particularly useful when the winding is arranged approximately 2,000 to 4,000 mm below the spinneret.
  • a device for swirling the filaments is arranged before winding.
  • a further reduction in spinning disturbances is achieved in that the spinneret is preceded by a melt line for supplying the polymer melt from an extruder to the spinneret, in which line at least one static mixer is arranged.
  • the uniformity properties of the spun filament yarns are favorably influenced.
  • the static mixers are arranged at one or more points in the melt line between the extruder and the spinneret.
  • the polyester filament yarns When using the device according to the invention for the production of polyester filament yarns, the polyester filament yarns being wound at speeds of up to 10,000 m / min, the yarns obtained in this way have a low coefficient of variation, low cooking and hot air shrinkage values and are particularly easy and deep to dye .
  • the use of the device according to the invention for the production of polyester yarns at winding speeds of 6,000 to 8,000 m / min has proven to be particularly favorable.
  • the use of the Device also for the production of filament yarns from polyethylene terephthalate, polyamide, polyamide 6, polyamide 6,6, their copolymers or from mixtures of these polymers has been found to be particularly favorable.
  • the device is also excellently suited for use in the production of filament yarns, the filament yarns being wound at speeds of 2,000 to 8,000 m / min, after which the filaments of the filament yarns have a single denier of 0.1 to 5 dtex.
  • microfibers whose individual titers are in the range from about 0.1 to 1.5 dtex can thus also be produced particularly cheaply, although it is recommended that the lower the winding speed and machine height, the lower the Individual titer of the filaments should be the filament yarn.
  • the device according to the invention is also suitable for the production of POY yarns. It is therefore preferred to use the device according to the invention for the production of polyester yarns, the polyester yarns being wound up at speeds of 2,000 to 5,000 m / min.
  • a spinneret 2 is installed in a spinning head 1.
  • Several filaments 3 are extruded from the spinneret 2 and are taken up by a porous tube 4 directly below the spinneret. After leaving the porous tube 4, the filaments are combined to form a yarn via the merging member 6 - in the illustrated case a thread guide.
  • An air swirl unit 7 can be installed in the yarn before winding 8.
  • Parallel plate nozzles are particularly suitable for the air swirling unit 7, which are advantageously operated with blowing pressures of 1.5 to 8 bar, the pressure being chosen the higher the higher the spinning speed is set.
  • Thread monitoring systems such as, for example, fluff monitors and thread cutters can also be provided along the spinning line A - A (not shown).
  • experiment D a spinneret with 36 holes was used, the Y profile for a triangular cross section, which corresponds to a diameter of about 250 microns.
  • the moisture content of the granules was determined by heating a sample in vacuo to 200 ° C. and reading off the vapor pressure that occurred.
  • the moisture content of the granules can be determined using a calibration curve.
  • the relative solution viscosity was measured in a standard Ubbelohde viscometer, a 1% solution in n-cresol having been prepared beforehand. The measurement was carried out at 25 ° C. On the one hand, the throughput time of the solution and on the other hand the throughput time of the solvent are measured in the same viscometer, from which the relative viscosity is calculated as the ratio of the two throughput times.
  • a parallel plate nozzle was used as the swirling nozzle, the plate spacing being 1.2 mm and the diameter of the air supply running at a right angle being 1.1 mm.
  • Uster CV 100 The values for Uster CV 100 were determined by a Uster tester II-C as values for the titre uniformity. The measurement was carried out at 20 ° C and 65% rel. Humidity carried out. The test speed was 100 m / min at 2.5 min.
  • strands with a yarn length of 10 mm are curled. After one hour Relaxation time at 20 ° C room temperature and 65% rel. Moisture, the initial length is determined under 0.5 cN / tex load. Then hot air is applied in the oven at 190 ° C for 15 minutes. After one hour of conditioning at 20 ° C and 65% rel. The strand length is measured when it is moist. The change in yarn length is related to the initial value.
  • the opening length is measured using the Rothschild entanglement tester. The test is carried out at 20 ° C and 25% rel. Moisture carried out. In the tested titer range between 50 and 200 dtex, the preload is 10 cN and the trigger force of the needle (triple level) is 20 cN.
  • the knitted tubes made from the yarns are cleaned in a solution consisting of water and detergent at a temperature of 30 to 35 °.
  • the knitted hoses are then drawn onto damping swords and inserted into a steamer cabinet preheated to 110 ° C for fixation.
  • the dwell time is 10 minutes.
  • the dyeing is then carried out in a solution of water, 60% acetic acid and the dye foron blue E-BL.
  • the residence time in the dyeing liquor is approximately 50 minutes at temperatures of approximately 125 °.
  • the knitted tubes are dried and visually assessed according to defined standards. Grades between 1 and 10 are given for uniformity of staining, with a grade of 10 corresponding very well to the rating.
  • Grades between 1 and 10 are also given when ready for staining, with a grade of 10 being given for a particularly uniform product.
  • a grade between 1 and 6 is assigned, the grade 6 meaning absolute freedom from specks.
  • the use of the device according to the invention results in yarns which are distinguished by very good uniformity (Uster CV 100) and with a uniformity and streakiness which is assessed as good.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Corsets Or Brassieres (AREA)
  • Harvester Elements (AREA)
  • Artificial Filaments (AREA)
EP92114493A 1991-09-06 1992-08-26 Dispositif de filage à grande vitesse de fils multifilaments et son utilisation Expired - Lifetime EP0530652B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE4129521A DE4129521A1 (de) 1991-09-06 1991-09-06 Vorrichtung zum schnellspinnen von multifilen faeden und deren verwendung
DE4129521 1991-09-06
DE4201119 1992-01-17
DE4201119 1992-01-17
DE4207095 1992-03-06
DE4207095 1992-03-06

Publications (3)

Publication Number Publication Date
EP0530652A2 true EP0530652A2 (fr) 1993-03-10
EP0530652A3 EP0530652A3 (en) 1993-08-11
EP0530652B1 EP0530652B1 (fr) 1995-12-06

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Application Number Title Priority Date Filing Date
EP92114493A Expired - Lifetime EP0530652B1 (fr) 1991-09-06 1992-08-26 Dispositif de filage à grande vitesse de fils multifilaments et son utilisation

Country Status (10)

Country Link
US (1) US5612063A (fr)
EP (1) EP0530652B1 (fr)
JP (1) JPH05195307A (fr)
CN (1) CN1056203C (fr)
AT (1) ATE131224T1 (fr)
BR (1) BR9203460A (fr)
DE (1) DE59204574D1 (fr)
ES (1) ES2080396T3 (fr)
MX (1) MX9205054A (fr)
SG (1) SG67284A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019229A1 (fr) * 1992-03-18 1993-09-30 Maschinenfabrik Rieter Ag Procede et dispositif de fabrication de filaments synthetiques continus
EP0580977A1 (fr) * 1992-06-13 1994-02-02 Barmag Ag Dispositif pour le filage de fils synthétiques
EP0613966A1 (fr) * 1993-03-05 1994-09-07 Akzo Nobel N.V. Dispositif de filage au fondu de fils multifilaments et son utilisation
WO1995015409A1 (fr) * 1993-12-03 1995-06-08 Rieter Automatik Gmbh Procede de filature a chaud de filaments
US5688458A (en) * 1992-03-18 1997-11-18 Maschinenfabrik Rieter Ag Method and device to manufacture synthetic endless filaments
US5976431A (en) * 1993-12-03 1999-11-02 Ronald Mears Melt spinning process to produce filaments

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WO2000005439A1 (fr) * 1998-07-23 2000-02-03 Barmag Ag Dispositif et procede permettant de filer un fil synthetique
TW538150B (en) 1998-11-09 2003-06-21 Barmag Barmer Maschf Method and apparatus for producing a highly oriented yarn
US6332994B1 (en) 2000-02-14 2001-12-25 Basf Corporation High speed spinning of sheath/core bicomponent fibers
JP5127098B2 (ja) * 2000-02-28 2013-01-23 ユニチカトレーディング株式会社 耐洗濯性に優れた抗菌性ポリアミド繊維、抗菌性ポリアミド捲縮加工糸、抗菌性ポリアミド織編物及び抗菌性ポリアミド繊維の製造方法
US6881047B2 (en) * 2000-05-18 2005-04-19 Invista North America S.A.R.L. Process and apparatus for improved conditioning of melt-spun material
EP1221499A1 (fr) * 2001-01-05 2002-07-10 Acordis Industrial Fibers bv Procédé de filage par étirage pour la fabrication de fils par le filage au fondu
CN102443860B (zh) * 2011-09-14 2014-04-16 泉州市盛欣纤维制品有限公司 一种聚酯纤维的生产工艺
CN103160992A (zh) * 2011-12-12 2013-06-19 河南瑞贝卡发制品股份有限公司 一种重纹蓬松纤维加工设备
CN107829160A (zh) * 2017-12-26 2018-03-23 中维化纤股份有限公司 一种无染锦纶66工业色丝及其制备方法

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019229A1 (fr) * 1992-03-18 1993-09-30 Maschinenfabrik Rieter Ag Procede et dispositif de fabrication de filaments synthetiques continus
US5688458A (en) * 1992-03-18 1997-11-18 Maschinenfabrik Rieter Ag Method and device to manufacture synthetic endless filaments
EP0580977A1 (fr) * 1992-06-13 1994-02-02 Barmag Ag Dispositif pour le filage de fils synthétiques
EP0613966A1 (fr) * 1993-03-05 1994-09-07 Akzo Nobel N.V. Dispositif de filage au fondu de fils multifilaments et son utilisation
WO1995015409A1 (fr) * 1993-12-03 1995-06-08 Rieter Automatik Gmbh Procede de filature a chaud de filaments
US5976431A (en) * 1993-12-03 1999-11-02 Ronald Mears Melt spinning process to produce filaments

Also Published As

Publication number Publication date
ATE131224T1 (de) 1995-12-15
US5612063A (en) 1997-03-18
ES2080396T3 (es) 1996-02-01
BR9203460A (pt) 1993-03-30
CN1128809A (zh) 1996-08-14
DE59204574D1 (de) 1996-01-18
EP0530652B1 (fr) 1995-12-06
SG67284A1 (en) 1999-09-21
MX9205054A (es) 1993-03-01
JPH05195307A (ja) 1993-08-03
EP0530652A3 (en) 1993-08-11
CN1056203C (zh) 2000-09-06

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