EP0334604A2 - Méthode et dispositif pour refroidir les filaments filés au fondu - Google Patents

Méthode et dispositif pour refroidir les filaments filés au fondu Download PDF

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Publication number
EP0334604A2
EP0334604A2 EP89302795A EP89302795A EP0334604A2 EP 0334604 A2 EP0334604 A2 EP 0334604A2 EP 89302795 A EP89302795 A EP 89302795A EP 89302795 A EP89302795 A EP 89302795A EP 0334604 A2 EP0334604 A2 EP 0334604A2
Authority
EP
European Patent Office
Prior art keywords
cooling
cooling air
molten filaments
upstream
spinning
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
EP89302795A
Other languages
German (de)
English (en)
Other versions
EP0334604B2 (fr
EP0334604A3 (en
EP0334604B1 (fr
Inventor
Eiji Katou
Akifumi Katou
Yoshihiro Yoshimura
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.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Petrochemical Industries Ltd
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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Application filed by Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to AT89302795T priority Critical patent/ATE97704T1/de
Publication of EP0334604A2 publication Critical patent/EP0334604A2/fr
Publication of EP0334604A3 publication Critical patent/EP0334604A3/en
Application granted granted Critical
Publication of EP0334604B1 publication Critical patent/EP0334604B1/fr
Publication of EP0334604B2 publication Critical patent/EP0334604B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • D01D5/088Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • D01D5/088Cooling filaments, threads or the like, leaving the spinnerettes

Definitions

  • the present invention relates to a method for cooling a plurality of molten filaments comprised of a thermoplastic resin extruded from dies and to an apparatus for carrying out that method.
  • Figure 3 shows a spinning apparatus for filaments comprised of polyethylene, polypropylene, or other thermoplastic resins.
  • a plurality of molten filaments 2 extruded from a die 1 are cooled by cooling air blown from a cooling apparatus 3 and then taken up with a draft.
  • the cooling apparatus 3 comprises a chimney 4 connected to a die 1 in a manner so as to surround the molten filaments 2 and a gas temperature adjustment apparatus 5 composed of coolers.
  • the apparatus 5 cools the cooling air to the desired temperature and the cooling air is fed to the chimney 4 by a fan 6 and is blown from the inner peripheral surface thereof through a filter 7.
  • Reference numeral 8 is an exhaust fan.
  • the filaments are gradually cooled, the filaments tend to adhere to each other and, further, the cooling zone must be made longer, and thus the size of the apparatus is necessarily increased.
  • an object of the present invention is to obviate the above-mentioned problems, caused by a too rapid or gradual cooling of the filaments.
  • a method of cooling molten filaments in a spinning apparatus where a plurality of molten filaments extruded from a die are cooled by cooling air blown out from a cooling apparatus and are taken up with a draft, wherein the temperature and/or volume of the cooling air blown from the cooling apparatus is controlled so that the cooling is performed stronger, in stages or continuously, from upstream to downstream.
  • a cooling apparatus in a spinning apparatus where a plurality of molten filaments extruded from a die are cooled by cooling air blown from a cooling apparatus and are taken up with a draft, and wherein (i) a plurality of cooling apparatuses with different temperatures and/or volumes of the cooling air are connected so that the cooling is performed stronger in the downstream stages, or (ii) there is provided a heater in the flow path of the cooling air with the pitch of the heating wires is made closer upstream so as to gradually increase the amount of heat generated, or (iii) the flow path of the cooling air is formed so as to be gradually narrower in the upstream direction or is formed so as to gradually increase the pressure loss.
  • the above-­mentioned problems can be solved by controlling the temperature and/or volume of the cooling air so that the cooling is performed stronger, in stages or continuously, from upstream to downstream of the filament flow.
  • the easiest way to change the cooling in stages and the easiest in terms of control is to divide the cooling zone into several sections, a cooling apparatus is provided for each section, and the cooling by the apparatus is made stronger in the downstream direction.
  • the degree of strength of the cooling can be changed.
  • the temperature and volume of air for cooling largely depend upon the materials to be extruded, the temperature of the molten filaments, and the extrusion rate, the temperature of the cooling air is preferably -20°C to 140°C, more preferably 0 to 100°C, and the volume of the cooling air to be blown is preferably 2 to 40 m3/kg, more preferably 5 to 25 m3/kg
  • the materials to be extruded include, for example, polyethylene, polypropylene and other thermoplastic resins.
  • the molten filaments extruded from the die are cooled weakly at the upstream portion of the cooling zone and strongly at the downstream portion thereof.
  • the cooling is weak, the temperature difference of the filament surface and interior is made small and the draft is applied in that state to ensure that, a uniform draft is applied, whereby the elasticity, tensile strength, and other physical properties of the filaments are improved, and melting and breaking occur with difficulty.
  • a strong cooling is performed for solidification, so adhesion between filaments occurs with difficulty.
  • FIG. 1 shows a first embodiment of two-stage cooling apparatus according to the present invention, having the same construction as that of the cooling apparatus 3 provided in the spinning apparatus as shown in Fig. 3, except for the filter at the bottom of the cooling apparatus 3, i.e., is comprised of a chimney 12 and a gas temperature adjustment apparatus 13 comprised of coolers.
  • the said apparatus sends the cooling air, cooled to a desired low temperature by the top stage gas temperature adjustment apparatus 13, to the chimney 12 by the fan 14 and connects this to a cooling appa­ratus 11 so that it is blown out from the inside peripheral surface. It blows out relatively high temperature cooling air from the top stage and relatively low temperature cooling air from the bottom stage thus slowly cooling the molten filaments 2 at the top stage and rapidly cooling them at the bottom stage.
  • the preferable cooling conditions are as follows: Top stage: 30°C ⁇ 8 m3/kg Bottom stage: 10°C ⁇ 8 m3/kg
  • the temperature of the cooling air blown out from the bottom stage is made lower than that at the top stage, but it is also possible to change the air amounts of the fans 6 and 14 so as to increase the amount of air of the bottom stage over the top stage and further possible to change both the temperature and air amount of the top and bottom stages.
  • a typical example of the cooling condition when polyethlene is used is as follows: Top stage: 20°C ⁇ 4 m3/kg Bottom stage: 10°C ⁇ 8 m3/kg
  • the embodiment shown in Fig. 2 is comprised in the same way as the apparatus shown in Fig. 1 outside of the fact that the fan 6 in the apparatus shown in Fig. 1 is made an exhaust fan and the cooling air of the bottom stage is exhausted from the fan 16, heated by the heater 17, then blown out from the top stage. As a result, cooling air of a relatively higher temperature is blown out from the top stage and cooling air of a relatively lower temperature is blown out from the bottom stage.
  • the above-mentioned embodiment shows an example where two cooling apparatuses are connected for two-­stage cooling, but in another embodiment three or more cooling apparatuses may be connected for multi-stage cooling and in still another embodiment heating wires may be wound around the internal peripheral surface of the chimney and the pitch made gradually closer upstream so as to heat the cooling air and give it a temperature gradient so that the temperature gradually falls downstream, whereby the cooling can be made continuously stronger downstream.
  • the flow path of the cooling air can be formed to be gradually narrower upstream or formed so that the pressure loss gradually increases, thereby gradually decreasing the amount of the cooling air upstream.
  • the cooling is made performed weaker at the upstream side and stronger at the downstream side, thereby improving the elasticity, tensile strength, and other physical properties of the filaments without enlarging the apparatus and further making molten breakage difficult and preventing mutual adhesion of filaments.
  • the ratio of the weaker portion of the cooling at the cooling zone can be increased so as to avoid rapid cooling or elongation of the cooling zone.
  • a plurality of cooling apparatuses are connected so as to strengthen the cooling in stages downstream.
  • the temperature of the cooling air can be given a temperature gradient descending in the downstream direction and the cooling can be made continuously stronger downstream.
  • the volume of the cooling air can be gradually increased downstream and thus the cooling can be made continuously stronger downstream.

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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)
EP89302795A 1988-03-24 1989-03-21 Méthode et dispositif pour refroidir les filaments filés au fondu Expired - Lifetime EP0334604B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89302795T ATE97704T1 (de) 1988-03-24 1989-03-21 Verfahren und vorrichtung zur abkuehlung von aus der schmelze gesponnenen faeden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63070915A JP2674656B2 (ja) 1988-03-24 1988-03-24 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
JP70915/88 1988-03-24

Publications (4)

Publication Number Publication Date
EP0334604A2 true EP0334604A2 (fr) 1989-09-27
EP0334604A3 EP0334604A3 (en) 1990-03-14
EP0334604B1 EP0334604B1 (fr) 1993-11-24
EP0334604B2 EP0334604B2 (fr) 1996-11-27

Family

ID=13445282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89302795A Expired - Lifetime EP0334604B2 (fr) 1988-03-24 1989-03-21 Méthode et dispositif pour refroidir les filaments filés au fondu

Country Status (10)

Country Link
EP (1) EP0334604B2 (fr)
JP (1) JP2674656B2 (fr)
KR (1) KR960006931B1 (fr)
CN (1) CN1022581C (fr)
AT (1) ATE97704T1 (fr)
AU (1) AU625777B2 (fr)
CA (1) CA1325088C (fr)
DE (1) DE68910857T3 (fr)
HK (1) HK84794A (fr)
NZ (1) NZ228457A (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991009162A1 (fr) * 1989-12-19 1991-06-27 Corovin Gmbh Procede et dispositif de filage pour la production de microfilaments
DE29512001U1 (de) * 1995-07-25 1995-10-05 Ems-Inventa AG, Zürich Blaswand zur Abkühlung von schmelzespinnbaren synthetischen Fäden
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
EP0957187A3 (fr) * 1998-05-14 2000-08-16 Ems-Inventa Ag Dispositif et procédé pour la fabrication de fils microfilaments avec haute regularité de titre à base de polymères thermoplastiques
WO2000063468A1 (fr) * 1999-04-15 2000-10-26 E.I. Du Pont De Nemours And Company Dispositif et procede de filage de filaments polymeriques
WO2001098564A1 (fr) * 2000-06-21 2001-12-27 Toray Engineering Company, Limited Dispositif de filage par fusion
EP1340843A1 (fr) * 2002-02-28 2003-09-03 Reifenhäuser GmbH & Co. Maschinenfabrik Appareil pour la fabrication en continu d'un voile de tissé-lié
WO2004005594A1 (fr) * 2002-07-05 2004-01-15 Diolen Industrial Fibers B.V. Procede de filature
WO2006024435A1 (fr) * 2004-08-27 2006-03-09 Diolen Industrial Fibers B.V. Procede de filage et dispositif destine a sa mise en oeuvre
CN100342067C (zh) * 2002-07-26 2007-10-10 株式会社可隆 高强度低收缩的聚酯拉伸纱线、其制造方法、由其制得的织物以及涂覆聚氯乙烯的织物
WO2011141427A1 (fr) * 2010-05-11 2011-11-17 Oerlikon Textile Gmbh & Co. Kg Procédé et dispositif de filage à chaud et de refroidissement de plusieurs fils synthétiques
CN105612278A (zh) * 2013-09-26 2016-05-25 瑞来斯实业公司 用于使合成复丝纤维骤冷的系统、方法和设备
CN111088534A (zh) * 2020-01-17 2020-05-01 晋江市兴泰无纺制品有限公司 一种纤维牵伸的制冷系统
CN112921420A (zh) * 2019-12-06 2021-06-08 拉明纳公司 无纺布生产设备及其操作方法
CN114592244A (zh) * 2022-02-27 2022-06-07 浙江坤兴化纤科技有限公司 一种高强度涤纶poy环保加工工艺
CN115182059A (zh) * 2022-06-13 2022-10-14 桐昆集团浙江恒超化纤有限公司 高弹春亚纺专用聚酯纤维纺丝设备及纺丝工艺

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KR100574180B1 (ko) * 1998-07-23 2006-04-27 바마크 악티엔게젤샤프트 합성 사를 방사하는 방사 장치 및 방법
JP2002302862A (ja) * 2001-04-06 2002-10-18 Mitsui Chemicals Inc 不織布の製造方法及び装置
CN1333119C (zh) * 2003-04-11 2007-08-22 南亚塑胶工业股份有限公司 细旦聚酯中空长丝的纺制方法
JP2007284857A (ja) * 2006-03-22 2007-11-01 Toray Ind Inc ポリエステルの溶融紡糸方法および溶融紡糸装置
JP5256970B2 (ja) * 2008-09-30 2013-08-07 東レ株式会社 セルロース脂肪酸混合エステル繊維糸条の溶融紡糸巻取り方法および溶融紡糸巻取り装置
CN101922056B (zh) * 2009-06-12 2012-05-23 珠海醋酸纤维有限公司 纺丝甬道风的调节方法
GB2479552B (en) * 2010-04-14 2015-07-08 Aker Subsea Ltd Subsea wellhead providing controlled access to a casing annulus
CN101831718B (zh) * 2010-05-24 2012-07-04 桐乡市中辰化纤有限公司 超粗旦聚酯单丝的制备方法
NO334816B1 (no) * 2011-04-28 2014-06-02 Aker Subsea As Havbunns brønnsammenstilling
CN103582740A (zh) * 2011-06-17 2014-02-12 Bp北美公司 用于封堵海底井的可空运封堵盖
CN102797060B (zh) * 2012-09-03 2015-05-13 江苏恒力化纤股份有限公司 一种高等级公路防护栏骨架材料聚酯工业丝的生产方法及其装置
CN102787378B (zh) * 2012-09-03 2014-12-17 江苏恒力化纤股份有限公司 一种高强低伸型涤纶工业丝的制造方法
KR20160001324A (ko) 2014-06-27 2016-01-06 이상수 눈 세정제 조성물 및 그 제조방법
CN104153741A (zh) * 2014-08-26 2014-11-19 中国石油集团川庆钻探工程有限公司工程技术研究院 套管外封隔器控制阀系
NO342043B1 (en) * 2015-12-08 2018-03-19 Aker Solutions As Workover Safety System
CN111058104A (zh) * 2019-12-31 2020-04-24 浙江金海环境技术股份有限公司 环境温度控制方法、控制装置、熔喷非织造材料生产线以及制备系统
CN116732623B (zh) * 2023-06-19 2024-02-20 桐昆集团浙江恒通化纤有限公司 一种吸湿排汗聚酯纤维及其制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070839A (en) * 1958-12-24 1963-01-01 Du Pont Controlled quenching apparatus
LU44675A1 (fr) * 1962-11-15 1963-12-23

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539293A (en) * 1976-07-14 1978-01-27 Ebara Corp Method and apparatus for regenerating activated carbon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070839A (en) * 1958-12-24 1963-01-01 Du Pont Controlled quenching apparatus
LU44675A1 (fr) * 1962-11-15 1963-12-23

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5310514A (en) * 1989-12-19 1994-05-10 Corovin Gmbh Process and spinning device for making microfilaments
WO1991009162A1 (fr) * 1989-12-19 1991-06-27 Corovin Gmbh Procede et dispositif de filage pour la production de microfilaments
DE29512001U1 (de) * 1995-07-25 1995-10-05 Ems-Inventa AG, Zürich Blaswand zur Abkühlung von schmelzespinnbaren synthetischen Fäden
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
EP0957187A3 (fr) * 1998-05-14 2000-08-16 Ems-Inventa Ag Dispositif et procédé pour la fabrication de fils microfilaments avec haute regularité de titre à base de polymères thermoplastiques
WO2000063468A1 (fr) * 1999-04-15 2000-10-26 E.I. Du Pont De Nemours And Company Dispositif et procede de filage de filaments polymeriques
US6444151B1 (en) 1999-04-15 2002-09-03 E. I. Du Pont De Nemours And Company Apparatus and process for spinning polymeric filaments
WO2001098564A1 (fr) * 2000-06-21 2001-12-27 Toray Engineering Company, Limited Dispositif de filage par fusion
US6918750B2 (en) 2002-02-28 2005-07-19 Reifenhauser Gmbh & Co. Maschinenfabrik Arrangement for the continuous production of a filament nonwoven fibrous web
EP1340843A1 (fr) * 2002-02-28 2003-09-03 Reifenhäuser GmbH & Co. Maschinenfabrik Appareil pour la fabrication en continu d'un voile de tissé-lié
US7731876B2 (en) 2002-07-05 2010-06-08 Diolen Industrial Fibers B.V. Spinning method
US8182915B2 (en) 2002-07-05 2012-05-22 Diolen Industrial Fibers B.V. Spinning method
CN100390334C (zh) * 2002-07-05 2008-05-28 戴奥伦工业纤维有限公司 纺制复丝的方法及所制得的复丝
WO2004005594A1 (fr) * 2002-07-05 2004-01-15 Diolen Industrial Fibers B.V. Procede de filature
KR101143536B1 (ko) * 2002-07-05 2012-05-09 어플라이드 폴리머 이노베이션즈 엠멘 비.브이. 방사방법
CN100342067C (zh) * 2002-07-26 2007-10-10 株式会社可隆 高强度低收缩的聚酯拉伸纱线、其制造方法、由其制得的织物以及涂覆聚氯乙烯的织物
WO2006024435A1 (fr) * 2004-08-27 2006-03-09 Diolen Industrial Fibers B.V. Procede de filage et dispositif destine a sa mise en oeuvre
CN102859052B (zh) * 2010-05-11 2015-11-25 欧瑞康纺织有限及两合公司 用于许多合成纱线的熔融纺丝和冷却的方法和装置
CN102859052A (zh) * 2010-05-11 2013-01-02 欧瑞康纺织有限及两合公司 用于许多合成纱线的熔融纺丝和冷却的方法和装置
WO2011141427A1 (fr) * 2010-05-11 2011-11-17 Oerlikon Textile Gmbh & Co. Kg Procédé et dispositif de filage à chaud et de refroidissement de plusieurs fils synthétiques
CN105612278A (zh) * 2013-09-26 2016-05-25 瑞来斯实业公司 用于使合成复丝纤维骤冷的系统、方法和设备
EP3049562A1 (fr) * 2013-09-26 2016-08-03 Reliance Industries Limited Système, procédé et dispositif pour refroidir des fibres multifilaments synthétiques
EP3049562A4 (fr) * 2013-09-26 2017-05-03 Reliance Industries Limited Système, procédé et dispositif pour refroidir des fibres multifilaments synthétiques
CN112921420A (zh) * 2019-12-06 2021-06-08 拉明纳公司 无纺布生产设备及其操作方法
CN111088534A (zh) * 2020-01-17 2020-05-01 晋江市兴泰无纺制品有限公司 一种纤维牵伸的制冷系统
CN114592244A (zh) * 2022-02-27 2022-06-07 浙江坤兴化纤科技有限公司 一种高强度涤纶poy环保加工工艺
CN115182059A (zh) * 2022-06-13 2022-10-14 桐昆集团浙江恒超化纤有限公司 高弹春亚纺专用聚酯纤维纺丝设备及纺丝工艺
CN115182059B (zh) * 2022-06-13 2023-11-14 桐昆集团浙江恒超化纤有限公司 高弹春亚纺专用聚酯纤维纺丝设备及纺丝工艺

Also Published As

Publication number Publication date
CA1325088C (fr) 1993-12-14
JP2674656B2 (ja) 1997-11-12
AU625777B2 (en) 1992-07-16
EP0334604B2 (fr) 1996-11-27
EP0334604A3 (en) 1990-03-14
KR960006931B1 (ko) 1996-05-25
DE68910857T3 (de) 1997-04-10
ATE97704T1 (de) 1993-12-15
EP0334604B1 (fr) 1993-11-24
KR890014793A (ko) 1989-10-25
DE68910857D1 (de) 1994-01-05
DE68910857T2 (de) 1994-03-17
HK84794A (en) 1994-08-26
CN1038135A (zh) 1989-12-20
AU3160889A (en) 1989-09-28
CN1022581C (zh) 1993-10-27
NZ228457A (en) 1991-11-26
JPH01246408A (ja) 1989-10-02

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