EP1637632B1 - Vorrichtung zur Herstellung von Filamenten aus thermoplastischem Kunststoff - Google Patents

Vorrichtung zur Herstellung von Filamenten aus thermoplastischem Kunststoff Download PDF

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Publication number
EP1637632B1
EP1637632B1 EP04022248A EP04022248A EP1637632B1 EP 1637632 B1 EP1637632 B1 EP 1637632B1 EP 04022248 A EP04022248 A EP 04022248A EP 04022248 A EP04022248 A EP 04022248A EP 1637632 B1 EP1637632 B1 EP 1637632B1
Authority
EP
European Patent Office
Prior art keywords
filaments
blown air
nozzle
sides
plastic
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.)
Active
Application number
EP04022248A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1637632A1 (de
Inventor
Detlef Frey
Hans Georg Geus
Michael Latinski
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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 Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to ES04022248T priority Critical patent/ES2287619T3/es
Priority to DE502004004519T priority patent/DE502004004519D1/de
Priority to EP04022248A priority patent/EP1637632B1/de
Priority to DK04022248T priority patent/DK1637632T3/da
Priority to AT04022248T priority patent/ATE368759T1/de
Priority to MXPA05009748A priority patent/MXPA05009748A/es
Priority to KR1020050085835A priority patent/KR100783450B1/ko
Priority to US11/226,231 priority patent/US20060061006A1/en
Priority to CN2005101040755A priority patent/CN1757800B/zh
Priority to JP2005269633A priority patent/JP2006083511A/ja
Priority to BRPI0504077-9A priority patent/BRPI0504077B1/pt
Publication of EP1637632A1 publication Critical patent/EP1637632A1/de
Application granted granted Critical
Publication of EP1637632B1 publication Critical patent/EP1637632B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/025—Melt-blowing or solution-blowing dies
    • 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • 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

Definitions

  • the invention relates to a device for producing filaments of thermoplastic material, comprising a meltblown die having a plastic guide core with at least one row of nozzle holes for the exit of the plastic melt and further arranged on both sides of the plastic guide core feed means for primary blowing air, with which the filaments in the region of the mouths of the nozzle bores can be acted upon on both sides with the primary blowing air.
  • endless filaments are produced with the device according to the invention.
  • the filaments are deposited on a laying device to form a random fleece or meltblown fleece.
  • the meltblown webs produced in this way are used as filters or in filters.
  • the technical problem underlying the invention to provide a device of the type mentioned, with the simple and functionally reliable manner, the filament diameter can be effectively reduced, so that diameters smaller than 1 .mu.m and in particular also can be achieved significantly less than 1 micron.
  • the invention teaches an apparatus for producing filaments of thermoplastic material, - having a meltblown die, which has a plastic guide core with at least one row of nozzle holes for the exit of the plastic melt and which further comprises on both sides of the plastic guide core arranged feeding means for primary blowing air, with which the filaments in the region of the mouths of the nozzle bores can be acted upon on both sides with the Primärblas Kunststoff and wherein at least one supply device for secondary blowing air is provided, with which the filaments below the meltblown blow head can be acted on laterally with secondary blowing air having a temperature higher than 50 ° C.
  • the exit of the plastic melt or polymer melt from the nozzle bores of the plastic guide core takes place in the form of plastic streams, which form the filaments as it were.
  • the Primärblas Kunststoff or Primärblas Kunststoffstrahlen are expediently guided acute angle against each other below the nozzle holes. It is within the scope of the invention that the primary blowing air is supplied through corresponding gaps on the plastic guide core in the form of Blas Kunststoff vomstrahlen.
  • the primary blowing air is supplied on both sides by gaps or channels between plastic guide core and die lips, and preferably, the gap width of the gap is adjustable.
  • the gap width of the gap is adjustable below the plastic guide core thus expediently two opposite nozzle lips arranged, which are preferably adjustable, so that the gap width of the gaps between the plastic guide core and the die lips is adjustable.
  • the distance x between the plastic guide core tip and the (imaginary) horizontal extension of the nozzle lip tip is expediently adjustable.
  • secondary blowing air below the meltblown blowing head is additionally blown from the side onto the filaments or onto the filament curtain.
  • the secondary blowing air at an angle ⁇ of 50 ° to 90 °, preferably from 65 ° to 90 ° and preferably from 75 ° to 90 ° to a running through a nozzle bore imaginary line or vertical sideways or is inflatable from the side.
  • the angle ⁇ is thus, so to speak, the angle between a Sekundärblasluftstrahl and said imaginary line or vertical.
  • the Sekundärblasluftstrahlen are thus at an angle ⁇ to the imaginary lines extending through the nozzle bores or vertical to the emerging from these nozzle bores filaments inflatable.
  • the direction of the imaginary straight line corresponds to the primary (undeflected) discharge direction of the filaments from the nozzle bores.
  • the Sekundärblas Kunststoff is orthogonal or substantially orthogonal to a running through a nozzle bore imaginary straight line or vertical inflatable.
  • Essentially orthogonal means that the angle ⁇ is 80 ° to 90 ° and preferably 85 ° to 90 °.
  • the secondary blowing air is blown at high speed to the filaments or to the filament curtain.
  • the vibrations of the filaments or of the threads are amplified both in their frequency and in their amplitude.
  • the invention is insofar the realization on the basis that additional draw points or additional points of the thread draw are generated in this way, so that a very effective and extensive stretching of the filaments is possible.
  • the at least one feed device for the secondary blowing air is set up with the proviso that secondary blowing air can be inflated with an elevated temperature compared with the room temperature (20 ° C.). It is within the scope of the invention that while Sekundärblas Kunststoff with a temperature higher than 50 ° C, preferably with a temperature higher than 60 ° C is inflatable. Particularly preferred is a secondary blowing air temperature between 65 ° C and 90 ° C, and more preferably between 70 ° C and 80 ° C. The heated secondary blowing air preferably has a relative humidity of less than 70%, preferably less than 50% and very preferably less than 20%. The invention is based on the finding that the thermoplastic phase of the filaments is, as it were, lengthened by blowing the warm or hot secondary blowing air so that the filaments remain stretchable on their way. In this way, a very effective stretching is thus achieved.
  • feeding devices for the secondary blowing air are arranged with the proviso that the filaments or the filament curtain can be acted upon by secondary blowing air from both sides.
  • supply means are provided on both sides of the filament curtain, so that the bidirectional loading of the filament curtain with secondary blowing air is possible.
  • the blowing with the secondary blowing air from at least one side of the filaments or the filament curtain is constant in time.
  • Temporal constant blowing means in particular, that the blowing speed of the secondary blowing air remains constant over time.
  • the blowing with the secondary blowing air is preferably constant in time from both sides of the filaments or the filament curtain.
  • the blowing with the secondary blowing air from at least one side of the filaments or the filament curtain is pulsating (i.e., not constant in time).
  • pulsating blowing means that the blowing speed of the secondary blowing air changes over time.
  • the speed of the secondary blowing air can change, for example, in a pulsating or alternating manner between 0 and a speed value v1.
  • the device according to the invention has a depositing device on which the filaments can be deposited as random or meltblown fleece.
  • the meltblown web produced in this way is used in a very preferred embodiment of the invention as a filter or in filters and in particular in fine filters.
  • the invention also provides a process for the production of the filaments of thermoplastic material, wherein - as described - is worked both with the Primärblas Kunststoffanblasung and with the Sekundärblas Kunststoffanblasung.
  • the invention furthermore relates to the use of the filaments or of a meltblown nonwoven produced with the filaments as filter material.
  • the invention is based on the finding that with a device according to the invention or with the corresponding method according to the invention filaments can be produced, which are characterized by a surprisingly small diameter. It can easily filaments with a filament diameter smaller than 1 micron and also be produced with a filament diameter significantly smaller than 1 micron.
  • the invention is further based on the finding that the filaments are effectively excited to additional oscillations with the aid of the secondary blowing-off of the invention, and that the number of draw points or drawing regions is thereby effectively increased. In combination with this, special importance is attached to the blowing of secondary higher-temperature blowing air, since this can effectively prolong the thermoplastic phase of the filaments.
  • FIGURE shows a schematic representation of a section through a device according to the invention.
  • the meltblown die 2 is equipped with a plastic guide core 3, which in the embodiment has a number of nozzle holes 4 for the exit of the plastic melt.
  • the row of nozzle bores 4 extends perpendicular to the plane of the paper.
  • supply means for secondary blowing air are present on both sides of the filament curtain from the filaments 1, with which the filaments below the meltblown blow head 2 are laterally charged with secondary blowing air.
  • This Sekundärblas Kunststoffbeetzhausung has been indicated in the figure by the arrows B.
  • the secondary blowing air can be inflated orthogonally or essentially orthogonally to the imaginary straight lines 7 passing through the nozzle bores 4.
  • the angle ⁇ between the Sekundärblas Kunststoffanblasung or between a Sekundärblas Kunststoff and a straight line 7 is therefore 90 ° or approximately 90 °.
  • an oscillation of the filaments 1 is effectively enhanced. In this way, additional draw points or points of Fadenunterziehung to the filaments.
  • secondary blowing air having a temperature higher than 50 ° C is blown.
  • the temperature of the secondary blowing air is 65 ° C to 85 ° C, preferably 70 ° C to 80 ° C.
  • a depositing device 8 which is preferably formed and in the embodiment as a wire belt.
  • the filaments are expediently stored as not shown meltblown fleece.
  • the meltblown fleece is particularly suitable for filter applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP04022248A 2004-09-17 2004-09-17 Vorrichtung zur Herstellung von Filamenten aus thermoplastischem Kunststoff Active EP1637632B1 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
ES04022248T ES2287619T3 (es) 2004-09-17 2004-09-17 Dispositivo para la fabricacion de filamentos de material termoplastico.
DE502004004519T DE502004004519D1 (de) 2004-09-17 2004-09-17 Vorrichtung zur Herstellung von Filamenten aus thermoplastischem Kunststoff
EP04022248A EP1637632B1 (de) 2004-09-17 2004-09-17 Vorrichtung zur Herstellung von Filamenten aus thermoplastischem Kunststoff
DK04022248T DK1637632T3 (da) 2004-09-17 2004-09-17 Anordning til fremstilling af filamenter af termoplast
AT04022248T ATE368759T1 (de) 2004-09-17 2004-09-17 Vorrichtung zur herstellung von filamenten aus thermoplastischem kunststoff
MXPA05009748A MXPA05009748A (es) 2004-09-17 2005-09-13 Dispositivo para producir filamentos a partir de material sintetico termoplastico.
KR1020050085835A KR100783450B1 (ko) 2004-09-17 2005-09-14 열가소성 합성 섬유로 필라멘트를 제조하는 장치
US11/226,231 US20060061006A1 (en) 2004-09-17 2005-09-15 Device for producing filaments from thermoplastic synthetic
CN2005101040755A CN1757800B (zh) 2004-09-17 2005-09-15 用热塑性合成物制造长丝的设备
JP2005269633A JP2006083511A (ja) 2004-09-17 2005-09-16 熱可塑性の合成物質からフィラメントを製造するための装置
BRPI0504077-9A BRPI0504077B1 (pt) 2004-09-17 2005-09-16 Dispositivo para produzir filamentos de um termoplástico sintético

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04022248A EP1637632B1 (de) 2004-09-17 2004-09-17 Vorrichtung zur Herstellung von Filamenten aus thermoplastischem Kunststoff

Publications (2)

Publication Number Publication Date
EP1637632A1 EP1637632A1 (de) 2006-03-22
EP1637632B1 true EP1637632B1 (de) 2007-08-01

Family

ID=34926598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04022248A Active EP1637632B1 (de) 2004-09-17 2004-09-17 Vorrichtung zur Herstellung von Filamenten aus thermoplastischem Kunststoff

Country Status (11)

Country Link
US (1) US20060061006A1 (pt)
EP (1) EP1637632B1 (pt)
JP (1) JP2006083511A (pt)
KR (1) KR100783450B1 (pt)
CN (1) CN1757800B (pt)
AT (1) ATE368759T1 (pt)
BR (1) BRPI0504077B1 (pt)
DE (1) DE502004004519D1 (pt)
DK (1) DK1637632T3 (pt)
ES (1) ES2287619T3 (pt)
MX (1) MXPA05009748A (pt)

Families Citing this family (16)

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Publication number Priority date Publication date Assignee Title
DE102006014236A1 (de) 2006-03-28 2007-10-04 Irema-Filter Gmbh Plissierbares Vliesmaterial und Verfahren und Vorrichtung zur Herstellung derselben
SI2603626T1 (sl) * 2010-08-12 2015-04-30 Boma Engineering Srl Postopek in naprava za navijanje vlaken, še posebej za izdelavo netkanega vlaknastega materiala
DE102010052155A1 (de) 2010-11-22 2012-05-24 Irema-Filter Gmbh Luftfiltermedium mit zwei Wirkmechanismen
KR20130111591A (ko) 2010-12-06 2013-10-10 미쓰이 가가쿠 가부시키가이샤 멜트블로운 부직포, 그의 제조 방법 및 장치
DE102012004227A1 (de) * 2012-03-06 2013-09-12 Carl Freudenberg Kg Verfahren und Vorrichtung zur Herstellung von superfeinen Polymerfasern durch Melt-blown-Technik
DE102012011065A1 (de) * 2012-06-04 2013-12-05 Irema-Filter Gmbh Verfahren zur Herstellung eines Vliesstoffes
DE102013008402A1 (de) 2013-05-16 2014-11-20 Irema-Filter Gmbh Faservlies und Verfahren zur Herstellung desselben
JP5782594B1 (ja) * 2014-07-21 2015-09-24 岡 潔 ナノファイバー形成用噴射ノズルヘッドおよびナノファイバー形成用噴射ノズルヘッドを具備するナノファイバーの製造装置
CN104532368B (zh) * 2015-01-27 2018-01-09 嘉兴学院 一种装卸式可调长梭型溶液喷射纺丝喷嘴及其使用方法
MY194230A (en) * 2016-03-30 2022-11-23 Mitsui Chemicals Inc Apparatus for manufacturing non-woven fabric and method of manufacturing non-woven fabric
EP3714086A4 (en) 2017-11-22 2021-10-06 Extrusion Group, LLC MELT BUBBLING NOZZLE TIP ARRANGEMENT AND PROCEDURE
CN109837598A (zh) * 2019-04-17 2019-06-04 中国科学院长春应用化学研究所 一种微流控纺丝装置及方法
CN111910262B (zh) * 2020-08-04 2022-04-15 冯建国 熔喷式无纺布制作设备、方法、熔喷式无纺布与卫生用品
CN114075700B (zh) * 2020-08-19 2022-11-29 中国科学院宁波材料技术与工程研究所 一种链式预调制熔喷方法、链式预调制熔喷头及熔喷装置
CN112030238B (zh) * 2020-08-31 2021-06-08 山东恒鹏卫生用品有限公司 一种熔喷布生产制造熔喷模头
WO2024098139A1 (en) * 2022-11-08 2024-05-16 Heat-Mx Worldwide Methods of reclaiming textile waste and recycling it without dyeing nor creating microplastic contamination in water system

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Also Published As

Publication number Publication date
DE502004004519D1 (de) 2007-09-13
CN1757800B (zh) 2010-05-05
MXPA05009748A (es) 2006-05-31
KR20060051299A (ko) 2006-05-19
BRPI0504077B1 (pt) 2015-08-04
DK1637632T3 (da) 2007-10-29
JP2006083511A (ja) 2006-03-30
EP1637632A1 (de) 2006-03-22
CN1757800A (zh) 2006-04-12
ES2287619T3 (es) 2007-12-16
KR100783450B1 (ko) 2007-12-07
ATE368759T1 (de) 2007-08-15
US20060061006A1 (en) 2006-03-23
BRPI0504077A (pt) 2006-05-02

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