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EP1710329A1 - Procédé et machine de filage et de refroidissement de filaments - Google Patents

Procédé et machine de filage et de refroidissement de filaments Download PDF

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Publication number
EP1710329A1
EP1710329A1 EP06006104A EP06006104A EP1710329A1 EP 1710329 A1 EP1710329 A1 EP 1710329A1 EP 06006104 A EP06006104 A EP 06006104A EP 06006104 A EP06006104 A EP 06006104A EP 1710329 A1 EP1710329 A1 EP 1710329A1
Authority
EP
European Patent Office
Prior art keywords
blowing
filaments
cooling
filament curtain
cooling air
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
EP06006104A
Other languages
German (de)
English (en)
Other versions
EP1710329B1 (fr
Inventor
Mathias STÜNDL
Horst Kropat
Anton Mooshammer
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
Saurer GmbH and Co 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
Application filed by Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1710329A1 publication Critical patent/EP1710329A1/fr
Application granted granted Critical
Publication of EP1710329B1 publication Critical patent/EP1710329B1/fr
Not-in-force legal-status Critical Current
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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes

Definitions

  • the invention relates to a method for melt spinning and cooling a plurality of filaments according to the preamble of claim 1 and to an apparatus for carrying out the method according to the preamble of claim 9.
  • the filaments In order to meet the requirements of the uniformity of the properties of the individual filaments and the demands for higher production speeds, the filaments must be cooled as uniformly and intensively after the extrusion.
  • a transverse flow blowing is used, which is formed on both longitudinal sides of the spinneret device and directly blows a flow of cooling air across the filament curtain on the filaments.
  • the direct coincidence of the cooling air streams outside the filament curtain leads to air turbulences, which act in particular on the filaments which are guided directly in the edge zones of the filament curtain.
  • the invention is characterized in that the guided in an edge zone of the filament curtain filaments are guided in a predetermined atmosphere with defined flow conditions.
  • a blowing agent which acts directly on the filaments guided in the edge zone of the filament curtain. Air turbulence by a transverse cooling air flow at the edge of the filament curtain can thus be advantageously avoided. In particular, equalization of the blowing conditions by the cooling air flow could be achieved by the blowing flow.
  • a separate blowing stream directed transversely to the cooling air flow is preferably applied to the filaments at each edge zone of the filament curtain.
  • separate blowing means are provided on both end faces of the spinneret device.
  • the development of the method according to the invention is particularly advantageous, in which the blowing is generated in addition to the edge zone of the filament curtain with a blowing direction in the direction of the filaments, wherein between the filaments and the blowing flow is adjusted to a blowing angle in the range of 0 ° to 45 °.
  • a parallel flow to the filament curtain can be set, which essentially only influences the edge air layers of the filament curtain.
  • blowing angle is advantageously increased, wherein blowing angles in the range of up to 45 ° have been found suitable in order to avoid undue deviations in the cooling conditions between the center of the filament curtain and the edge zones of the filament curtain.
  • the blowing streams in both edge zones of the filament curtain will impact the filaments with an angle of incidence in the range of 0 ° to 20 °.
  • the device according to the invention has for this purpose in each case a blow opening and a pressure chamber connected to the blow opening, wherein the blow opening has a tendency to form an angle of attack between the filaments and the blow stream in the range of 0 ° to 45 °.
  • the blowing flow is generated according to an advantageous variant of the method with a blowing speed which is greater than the blowing speed of the cooling air flow. This allows a turbulence-free flow in the edge region of the filament curtain to be produced up to the outlet side of the cooling device.
  • the blow stream and the cooling air flow are preferably formed by a climatic air, which has a substantially equal temperature.
  • a climatic air which has a substantially equal temperature.
  • the blowing flow can also be advantageously formed by a room air.
  • a second cooling air flow is preferably act on the filaments within the cooling zone, which is blown transversely to the filament curtain against the first cooling air flow.
  • the filament curtain can be cooled intensively and evenly on both sides.
  • the blowing agent is preferably formed by a blowing opening directed onto the edge zone of the filament curtain and a pressure chamber connected to the blowing opening.
  • the blowing opening preferably has a rectangular outlet cross-section, which extends aligned substantially parallel to the end face of the spinneret device over the entire thickness of the filament curtain.
  • a flow rectifier is arranged within the blowing opening.
  • the device according to the invention is operated according to a preferred development with a cooling device which contains a blow-by with a blow chamber on both longitudinal sides of the spinneret device.
  • a cooling device which contains a blow-by with a blow chamber on both longitudinal sides of the spinneret device.
  • two separate cooling air streams can be generated, which are each directed transversely to the filament curtain on the filaments.
  • Such cooling devices allow intensive cooling, which even at high filament densities within the filament curtain high process speeds are possible.
  • the blowing means are each assigned one or more cover plates which extend at a distance parallel to the edge zones of the filaments and are designed to be displaceable.
  • additional flow effects can be generated to equalize an edge flow.
  • the sucked in ambient air can be used.
  • FIGS. 1 and 2 show a first exemplary embodiment of the device according to the invention for carrying out the method according to the invention for melt-spinning and cooling a multiplicity of filaments.
  • Fig. 1 the embodiment is shown schematically in a view and in Fig. 2 schematically in a cross section.
  • Fig. 1 the embodiment is shown schematically in a view and in Fig. 2 schematically in a cross section.
  • the exemplary embodiment has a spinneret device 1, which preferably has a multiplicity of nozzle bores on its underside in a row-shaped arrangement.
  • the spinneret device 1 is connected via a melt inlet 2 with a melt source (not shown here).
  • the cooling device 3 has a blowing wall 4.1 extending parallel to a longitudinal side of the spinneret device 1, which is connected to a blast chamber 5.1.
  • the blow chamber 5.1 is connected via an air feed 17 with a cooling air source (not shown here).
  • a cooling air source in this case a fan or an air conditioning device may be provided.
  • the cooling device 3 each have a separate blowing agent 8.1 and 8.2.
  • the blowing means are 8.1 and 8.2 respectively shown in a cross-sectional view, wherein the blowing agent 8.1 the left end of the spinneret 1 and the blowing means 8.2 the right end of the spinneret 1 is assigned.
  • the blowing agent is 8.1 by a blow opening 9.1 and connected to the blow opening 9.1 pressure chamber 10.1. educated.
  • the pressure chamber 10.1 is connected to a pressure source, not shown here.
  • the blowing means 8.2 arranged on the opposite end side are likewise formed into a blowing opening 9.2 and a pressure chamber 10.2 connected to the blowing opening 9.2.
  • the pressure chamber 10.2 is also connected to a pressure source.
  • the blowing openings 9.1 and 9.2 have a substantially rectangular outlet cross-section, in each of which a flow rectifier 11 is arranged.
  • the blow opening 9.1 on the left end side of the spinneret device has an inclination relative to a vertical, so that the blow stream exiting from the outlet cross section of the blow opening 9.1 strikes the extruded filaments 6 through the spinneret device 1 with an angle of attack.
  • the blowing angle is indicated by the reference numeral ⁇ .
  • the blast opening 9.2 on the opposite end face of the spinneret device 1 is formed substantially mirror-inverted to the blow opening 9.1.
  • the blow opening 9.2 has an opposite inclination, so that the blow stream exiting from the outlet cross section of the blow opening 9.2 strikes the extruded filaments 6 through the spinneret device 1 with an angle of attack.
  • the blowing angle is also characterized by the reference character ⁇ .
  • the Anblaswinkel and thus the arrangement of the blowing openings 9.1 and 9.2 are preferably the same on both sides of the spinneret device 1.
  • a draw-off nozzle 12 is arranged below the cooling device 3 in order to draw off the filaments 6 from the spinning nozzle device 1 and place it on a deposition belt 13 arranged below the draw-off nozzle 12 as a spun-bonded nonwoven 18.
  • the storage belt 13 is designed to be permeable to air and is driven transversely to the draw-off nozzle 12 via a drive system, which is not described here in more detail.
  • the spinneret device 1 is supplied with a polymer melt and extruded under pressure from the nozzle bores arranged on the underside of the spinneret device 1.
  • the emerging from the nozzle bores of the spinneret 1 filaments 6 are guided in a row-like arrangement as a so-called filament curtain 7.
  • the filament curtain 7 is drawn off from the spinneret device 1 through the draw-off nozzle 12.
  • the filament curtain 7 is guided through a guide channel 14 of the discharge nozzle 12, in which a delivery fluid is introduced.
  • cooling takes place by a cooling air flow directed transversely to the filament curtain 7 in the cooling zone formed by the cooling device 3.
  • the cooling air flow is generated by the blowing chamber 5.1 and the blowing wall 4.1 and is blown uniformly over the entire width and length of the blowing wall 4.1 onto the filaments 6 of the filament curtain 7.
  • an additional blowing stream is produced by the blowing agents 8.1 and 8.2 which strikes the filaments 6 guided in the edge zones of the filament curtain 6 with an angle of incidence ⁇ of approximately 20 ° ,
  • the blowing stream generated by the blowing agents 8.1 and 8.2 is blown in the running direction of the filaments 6, so that no significant air friction phenomena the filaments occur.
  • the transverse cooling air flow as well as the blowing flow set at the edge zones of the filament curtain 7 are matched to one another such that a substantially uniform cooling of the filament strands within the filament curtain 7 occurs regardless of where the filaments 6 are guided.
  • the blowing stream is adjusted with respect to the transverse cooling air flow with a slightly higher blowing speed, so that the formation of air vortices is avoided over the entire cooling section and a uniform guidance of the filaments is ensured up to the discharge nozzle 12.
  • the filament curtain 7 is picked up by the draw-off nozzle 12 and deposited as a spun-bonded non-woven 18 on the storage belt 13.
  • the blowing stream and the filaments meet in the inlet region of the cooling zone.
  • the cooling air flow is superimposed over the entire length of the cooling zone with the blowing flow.
  • blow openings 9.1 and 9.2 are aligned such that the blow stream strikes the filaments 6 of the filament curtain 7 at an angle of about 20 °.
  • blowing angles can be set which could be in the range of 0 ° to 45 ° in order to obtain advantageous guidance and cooling of the filaments in the edge zones of the filament curtain 7.
  • the blowing angle is set equal on both sides in a range of 0 ° to 20 °.
  • the blowing openings 9.1 and 9.2 could each be formed on movable blast nozzles, by means of which an adjustment of the angle of attack is possible.
  • FIG. 3 shows a further exemplary embodiment of the device according to the invention for carrying out the method according to the invention.
  • the embodiment of FIG. 3 is formed substantially identical to the previous embodiment, so that at this point schematically a plan view of the principalsgbeispiels is shown. Below, essentially only the differences are explained.
  • the cooling device 3 on both longitudinal sides of the spinneret 1 each have a blowing wall 4.1 and 4.2, which are each connected to a blast chamber 5.1 and 5.2.
  • the blower walls 4.1 and 4.2 are arranged substantially parallel to the above the cooling device 3 arranged spinneret 1.
  • the blow chambers 5.1 and 5.2 are connected to a cooling air source, not shown, so that the blow chambers 5.1 and 5.2 preferably filled with a cooling medium, a cooling air and is guided under pressure through the blowing walls 4.1 and 4.2 transverse to the filament curtain.
  • the blowing means are arranged 8.1 and 8.2.
  • Each of the blowing means 8.1 and 8.2 has a blowing opening 9.1 and 9.2, through which a Blas Kunststoffstrom is generated and - as already described - blown with a Anblaswinkel on the filaments 6 of the filament curtain.
  • Each blow opening 9.1 and 9.2 may include a flow straightener, by which a substantially rectified air flow is generated, so that over the entire thickness of the filament curtain 7 uniform blow stream.
  • Each of the blowing openings 9.1 and 9.2 is connected to a pressure chamber 10.1 and 10.2.
  • particularly high filament densities within the filament curtain 7 can be intensively and uniformly cooled. Due to the intensive cooling effect, it is advantageously possible to set high take-off speeds by means of a downstream draw-off nozzle.
  • FIG. 4 a further embodiment of the device according to the invention for carrying out the method according to the invention in a longitudinal sectional view is shown schematically.
  • the embodiment is substantially identical to the embodiment of FIG. 3, so that only the differences are explained below.
  • the cooling device 3 arranged below the spinneret device 1 is formed by the blowing walls 4.1 and 4.2 with the blow chambers 5.1 and 5.2 extending on the longitudinal sides.
  • a blowing agent is provided 8.1 and 8.2, wherein in the illustration in Fig. 4, only the blowing means 8.2 is shown.
  • a plurality of cover plates are provided in order to make a shielding of the filaments 6 with respect to the environment can.
  • the blowing means 8.2 associated cover plates 19.1 and 19.2 are shown.
  • the cover plates 19.1 and 19.2 are slidably held in an upper guide 20 and a lower guide 21.
  • the cover plates 19.1 and 19.2 can be adjusted as desired between a closed position and an open position. In the open position, a lateral air outlet 22 is formed. This allows additional flow effects to be generated at the edge zones of the filament curtain 7 within the cooling zone.
  • the filament curtain 7 is drawn off from the spinneret device 1 through the draw-off nozzle 12.
  • the guided in the guide channel 14 filament curtain 7 is thereby promoted by a conveying fluid that is supplied to the guide channel 14 via the fluid chambers 16.1 and 16.2 and the fluid inlets 15.1 and 15.2.
  • FIGS. 1 to 4 are exemplary in construction and arrangement of the blowing agent. It is essential that a additional blowing stream for guiding the filaments at the edge zones of the filament curtain can be generated. In particular, the air turbulence generated by a transverse flow blowing at the edge zones of the filament curtain should be avoided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
EP06006104A 2005-04-07 2006-03-24 Procédé et machine de filage et de refroidissement de filaments Not-in-force EP1710329B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005015974 2005-04-07

Publications (2)

Publication Number Publication Date
EP1710329A1 true EP1710329A1 (fr) 2006-10-11
EP1710329B1 EP1710329B1 (fr) 2009-08-19

Family

ID=36581734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06006104A Not-in-force EP1710329B1 (fr) 2005-04-07 2006-03-24 Procédé et machine de filage et de refroidissement de filaments

Country Status (4)

Country Link
US (1) US20060226573A1 (fr)
EP (1) EP1710329B1 (fr)
CN (1) CN1844505B (fr)
DE (1) DE502006004562D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3575470A1 (fr) * 2018-05-28 2019-12-04 Reifenhäuser GmbH & Co. KG Maschinenfabrik Dispositif de fabrication d'un tissu non-tissé à partir de filaments continus
EP3575468A1 (fr) * 2018-05-28 2019-12-04 Reifenhäuser GmbH & Co. KG Maschinenfabrik Procédé et dispositif destinés à la fabrication de tissus non-tissés à partir de filaments continus

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080006970A1 (en) * 2006-07-10 2008-01-10 General Electric Company Filtered polyetherimide polymer for use as a high heat fiber material
US9416465B2 (en) * 2006-07-14 2016-08-16 Sabic Global Technologies B.V. Process for making a high heat polymer fiber
JP5529542B2 (ja) * 2007-10-26 2014-06-25 株式会社カネカ ポリイミド繊維集合体、吸音材料、断熱材料、難燃マット、濾布、耐熱服、不織布、航空機用途断熱吸音材、及び耐熱性バグフィルター
CN102296426A (zh) * 2011-08-09 2011-12-28 温州朝隆纺织机械有限公司 用于生产双组分纺粘非织造布的设备及制造方法
US9231899B2 (en) 2012-01-13 2016-01-05 International Business Machines Corporation Transmittal of blocked message notification
IN2013MU03075A (fr) * 2013-09-26 2015-08-14 Reliance Ind Ltd
CN105821502B (zh) * 2016-05-27 2018-01-26 浙江显昱纤维织染制衣有限公司 一种纺丝机的冷却箱
EP3575469B1 (fr) * 2018-05-28 2020-08-05 Reifenhäuser GmbH & Co. KG Maschinenfabrik Procédé et dispositif destinés à la fabrication de tissus non-tissés à partir de filaments continus
DE102020114761A1 (de) * 2019-06-19 2020-12-24 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Schmelzspinnen einer Vielzahl von Filamenten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5696908A (en) * 1980-01-04 1981-08-05 Teijin Ltd Melt spinning method
DE3318096C1 (de) 1983-05-18 1984-12-20 Automatik Apparate-Maschinenbau H. Hench Gmbh, 8754 Grossostheim Vorrichtung zum Kühlen von aus Spinndüsen extrudierten Kunststoffäden
EP0671492A1 (fr) * 1992-03-17 1995-09-13 Lenzing Aktiengesellschaft Procédé de fabrication d'éléments moulés cellulosiques et dispositif de mise en oeuvre du dit procédé
US6183684B1 (en) 1994-12-15 2001-02-06 Ason Engineering, Ltd. Apparatus and method for producing non-woven webs with high filament velocity

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7384583B2 (en) * 2001-04-06 2008-06-10 Mitsui Chemicals, Inc. Production method for making nonwoven fabric
DE10141670A1 (de) * 2001-08-25 2003-03-06 Neumag Gmbh & Co Kg Vorrichtung zum Schmelzspinnen und Kühlen einer Filamentschar
EP1470272B1 (fr) * 2002-01-29 2008-04-23 Oerlikon Textile GmbH & Co. KG Procede de refroidissement de filaments file a chaud et dispositif de filature par fusion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5696908A (en) * 1980-01-04 1981-08-05 Teijin Ltd Melt spinning method
DE3318096C1 (de) 1983-05-18 1984-12-20 Automatik Apparate-Maschinenbau H. Hench Gmbh, 8754 Grossostheim Vorrichtung zum Kühlen von aus Spinndüsen extrudierten Kunststoffäden
EP0671492A1 (fr) * 1992-03-17 1995-09-13 Lenzing Aktiengesellschaft Procédé de fabrication d'éléments moulés cellulosiques et dispositif de mise en oeuvre du dit procédé
US6183684B1 (en) 1994-12-15 2001-02-06 Ason Engineering, Ltd. Apparatus and method for producing non-woven webs with high filament velocity

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 168 (C - 077) 27 October 1981 (1981-10-27) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3575470A1 (fr) * 2018-05-28 2019-12-04 Reifenhäuser GmbH & Co. KG Maschinenfabrik Dispositif de fabrication d'un tissu non-tissé à partir de filaments continus
EP3575468A1 (fr) * 2018-05-28 2019-12-04 Reifenhäuser GmbH & Co. KG Maschinenfabrik Procédé et dispositif destinés à la fabrication de tissus non-tissés à partir de filaments continus
RU2732563C1 (ru) * 2018-05-28 2020-09-21 Райфенхойзер Гмбх Унд Ко. Кг Машиненфабрик Способ и устройство для производства нетканых материалов из бесконечных элементарных нитей
RU2739285C2 (ru) * 2018-05-28 2020-12-22 Райфенхойзер Гмбх Унд Ко. Кг Машиненфабрик Устройство для изготовления фильерного нетканого материала из элементарных нитей
AU2019203030B2 (en) * 2018-05-28 2024-02-22 Reifenhäuser GmbH & Co. KG Maschinenfabrik Apparatus and method for making spunbond from continuous filaments

Also Published As

Publication number Publication date
DE502006004562D1 (de) 2009-10-01
CN1844505B (zh) 2011-01-26
US20060226573A1 (en) 2006-10-12
EP1710329B1 (fr) 2009-08-19
CN1844505A (zh) 2006-10-11

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