EP1177336B2 - Dispositif permettant d'assurer l'ouverture et la repartition d'un faisceau de filaments lors de la realisation d'une nappe textile non tissee - Google Patents

Dispositif permettant d'assurer l'ouverture et la repartition d'un faisceau de filaments lors de la realisation d'une nappe textile non tissee Download PDF

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Publication number
EP1177336B2
EP1177336B2 EP00922703A EP00922703A EP1177336B2 EP 1177336 B2 EP1177336 B2 EP 1177336B2 EP 00922703 A EP00922703 A EP 00922703A EP 00922703 A EP00922703 A EP 00922703A EP 1177336 B2 EP1177336 B2 EP 1177336B2
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EP
European Patent Office
Prior art keywords
filaments
assembly
bundle
diffuser
outlet
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.)
Expired - Lifetime
Application number
EP00922703A
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German (de)
English (en)
French (fr)
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EP1177336A1 (fr
EP1177336B1 (fr
Inventor
Rosario Maggio
Laurent Schmit
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.)
Rieter Perfojet SAS
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Rieter Perfojet SAS
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Application filed by Rieter Perfojet SAS filed Critical Rieter Perfojet SAS
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Publication of EP1177336B1 publication Critical patent/EP1177336B1/fr
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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
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • 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
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • 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
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • 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
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • 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
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the present invention relates to an improvement made to the facilities for the manufacture of a nonwoven textile web, commonly known by the generic name "spunbond", which is formed by continuous synthetic filaments.
  • It relates more particularly to an improvement in the means for ensuring the distribution of the extruded filaments, after drawing, on a movable conveyor belt on which they are distributed at random to form a regular sheet, weight and thickness adjustable according to the applications.
  • the web is consolidated, for example by performing a calibration or calendering, preferably hot, so that the filaments. Elementals are linked to each other.
  • consolidation treatments may optionally be carried out, such as for example a needling treatment (conventional or by fluid jets), and / or the deposition on the surface or inside the sheet of a binder material .
  • the filaments appear at the outlet of the drawing slot in the form of a bundle of filaments grouped in the median plane of said slot.
  • These filaments are ejected at a very high speed from said drawing slot, a speed of up to 3000 m / min or more depending on the state.
  • This technology makes it possible to improve the formation of the haze when the filaments are ejected at relatively low speed from the drawing slot and that, therefore, the so-called "bundling" phenomena of the filaments are preponderant compared with those of the bounce of the filaments on the carpet.
  • the end of the stretching slot on which the electrostatic device is fixed is located at a relatively large distance from the receiving belt, of the order 500 mm or more, so that the friction forces of the filaments in the air slow down their speed, which limits the rebound phenomena and thus improves the formation of the web.
  • Such a device has a limited efficiency, because it is mainly the fibers located on each side of the beam that are thus "spaced", those grouped in the center of said beam being extremely difficult to separate from each other.
  • an apparatus for producing a nonwoven filament web comprising, from top to bottom, successively an extrudense of a molten polymer through a die pierced with holes so as to form a filament curtain, a device for fluid jet slit stretching and a diffuser having a contiguous shaped inlet zone extended from a divergent exit zone. An opening is provided in the wall of the diffuser inlet which is connected with the bottom of the drawing device. The filaments emerging from the diffuser are deposited on a mobile receiver mat.
  • the document represents the closest state of the art.
  • the invention therefore relates to a device according to claim 1.
  • the divergent zone of the diffuser comprises two walls and two lateral slots located at the top of said diffuser, on each side thereof and allowing either a call from outside air by Venturi effect, or possibly a injection of air at a pressure less than one bar and preferably between 0.4 and 0.8 bar, causing a flow of air against the walls of said diffuser.
  • the above diffuser makes it possible to precisely adjust the width of the fiber bundle as well as the speed of impact of the filaments on the conveyor belt, the electrostatic charge assembly being possibly located downstream of the diffuser assembly, but being of preferably integrated within the latter, which makes it possible to accentuate the opening of the bundle of filaments.
  • the device according to the invention is therefore intended to be used on a production line of a nonwoven textile web constituted by continuous synthetic filaments.
  • such a production line therefore consists essentially of at least one extruder, designated by the general reference (1) supplying synthetic polymer such as polyamide, polyethylene, polyester ..., a die (2) allowing the formation of a curtain of filaments (3).
  • the die consists of a plate each comprising a multitude of holes, for example at the number of 5000 per meter of width and having a diameter function of the extruded filaments, for example 0 , 5 mm. These holes are distributed over a plurality of parallel rows, for example eighteen rows and this, over a die exit width of 140 mm.
  • a cooling assembly (4) for adjusting the temperature of the filaments according to the polymers and composed for example of a plurality of successive zones (4a, 4b, 4c) for submitting the curtain of filaments (3) to through air streams whose speed and temperature can be adjusted.
  • this cooling zone is of the order of 1200 mm and the temperature and the speed of each of the zones is decreasing from the first zone (4a) to the third zone (4c).
  • a stretching assembly proper (5) which is in the form of a closed chamber having a slot (F) inside which is injected air under pressure, for example of the order of 0.5 bar.
  • Such a stretching system makes it possible to obtain the suction of the curtain of filaments and its entrainment by high velocity air streams to ensure stretching.
  • the bundle of filaments (3) is projected onto the conveyor belt (7) via a set (6), which assembly is the subject of the invention and two embodiments of which emerge from figures 2 and 3 , and which causes a deviation of the air flow leaving the slot (5), a slowing of this air flow thus causing the opening of the bundle of filaments.
  • such an assembly comprises, near the outlet of the stretching slot (F) of the assembly (5), on the one hand, a diffuser, designated by the general reference (10) consisting essentially of a divergent which extends over the entire width of the production of the sheet and, secondly, downstream of this opening assembly, a ramp (11) for electrostatically charging the filaments at the outlet of the assembly (10) causing said bundle of filaments to be fully open before being deposited on the receiving mat (7).
  • a diffuser designated by the general reference (10) consisting essentially of a divergent which extends over the entire width of the production of the sheet and, secondly, downstream of this opening assembly, a ramp (11) for electrostatically charging the filaments at the outlet of the assembly (10) causing said bundle of filaments to be fully open before being deposited on the receiving mat (7).
  • the diffuser assembly (10) essentially consists of a chamber (12) having an internal convergent / divergent slot (13) extending over the entire width of the installation facing the output of the stretching slot (F) of the assembly (5).
  • symmetrical slots (14) In this slot (13) open, near the lower part of the diverging zone, two symmetrical slots (14) arranged laterally. These symmetrical slots (14) can be either connected to a source of compressed air injected at a pressure of less than 1 bar and advantageously of the order of 0.4 bar, or simply be open to the open air.
  • the diverging zone is, in this embodiment, extended by two walls (15) also divergent.
  • a conventional ramp (11) for electrostatically charging the filaments thus making it possible to accentuate the opening of the beam.
  • a ramp (11) is a conventional ramp, for example of the type described in FIG. US-A-3,967,118 .
  • the figure 3 illustrates a second embodiment of a set of opening and distribution of a bundle of filaments in the form of a web made according to the invention.
  • the opening and distribution device the bundle of filaments (6) is, as before, dissociated from the drawing assembly (5).
  • this embodiment also comprises a convergent-shaped input zone (13) extending opposite the exit of the drawing slot (F).
  • This convergent-shaped entrance zone (13) is connected to the two walls (15) of the divergent zone by a rectilinear slot (20).
  • the ramp (11) for electrostatically charging the filaments is, in this embodiment, integrated within the diffuser, at the end of the straight slot (20) immediately upstream of the diverging region (15).
  • a venturi air intake is achieved through the two adjacent contiguous slits formed by the lower face of the draw assembly (5) and the upper face of the opening and closing assembly. distribution (6).
  • an air injection under low pressure, less than 1 bar, could be performed at the two lateral slots formed between the drawing assembly (5) and the opening and distribution assembly (6).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP00922703A 1999-04-23 2000-04-20 Dispositif permettant d'assurer l'ouverture et la repartition d'un faisceau de filaments lors de la realisation d'une nappe textile non tissee Expired - Lifetime EP1177336B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9905403A FR2792656B1 (fr) 1999-04-23 1999-04-23 Dispositif permettant d'assurer l'ouverture et la repartition d'un faisceau de filaments lors de la realisation d'une nappe textile non tissee
FR9905403 1999-04-23
PCT/FR2000/001050 WO2000065134A1 (fr) 1999-04-23 2000-04-20 Dispositif permettant d'assurer l'ouverture et la repartition d'un faisceau de filaments lors de la realisation d'une nappe textile non tissee

Publications (3)

Publication Number Publication Date
EP1177336A1 EP1177336A1 (fr) 2002-02-06
EP1177336B1 EP1177336B1 (fr) 2003-08-20
EP1177336B2 true EP1177336B2 (fr) 2008-09-10

Family

ID=9544987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00922703A Expired - Lifetime EP1177336B2 (fr) 1999-04-23 2000-04-20 Dispositif permettant d'assurer l'ouverture et la repartition d'un faisceau de filaments lors de la realisation d'une nappe textile non tissee

Country Status (12)

Country Link
US (1) US6966762B1 (xx)
EP (1) EP1177336B2 (xx)
JP (1) JP4549541B2 (xx)
CN (1) CN1168855C (xx)
AT (1) ATE247728T1 (xx)
AU (1) AU4301300A (xx)
DE (1) DE60004660T3 (xx)
FR (1) FR2792656B1 (xx)
IL (2) IL146029A0 (xx)
PL (1) PL191426B1 (xx)
TR (1) TR200103043T2 (xx)
WO (1) WO2000065134A1 (xx)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2815647B1 (fr) * 2000-10-20 2003-02-14 Rieter Perfojet Installation de production d'une nappe non tissee a difusseur et a separation des filaments par voie electrostatique
US6607624B2 (en) 2000-11-20 2003-08-19 3M Innovative Properties Company Fiber-forming process
CN100432316C (zh) 2000-11-20 2008-11-12 3M创新有限公司 制造纤维的方法和设备及其产品
FR2825381B1 (fr) * 2001-05-31 2003-11-14 Rieter Perfojet Installation de production d'une nappe non tissee a poids tres regulier
WO2003038174A1 (en) 2001-09-26 2003-05-08 Bba Nonwovens Simpsonville, Inc. Apparatus and method for producing a nonwoven web of filaments
US8333918B2 (en) 2003-10-27 2012-12-18 Kimberly-Clark Worldwide, Inc. Method for the production of nonwoven web materials
US7585451B2 (en) * 2004-12-27 2009-09-08 E.I. Du Pont De Nemours And Company Electroblowing web formation process
US8032246B2 (en) * 2007-02-02 2011-10-04 Kimberly-Clark Worldwide, Inc. Winding method for uniform properties
US8246898B2 (en) * 2007-03-19 2012-08-21 Conrad John H Method and apparatus for enhanced fiber bundle dispersion with a divergent fiber draw unit
EP2151270A4 (en) * 2007-05-31 2011-03-16 Toray Industries NONWOVEN ETOFF FOR CYLINDRICAL BAG FILTER, PROCESS FOR PRODUCING THE SAME, AND CYLINDRICAL BAG FILTER PRODUCED THEREFROM
CN101092758B (zh) * 2007-06-05 2010-11-10 东华大学 非织造纺粘生产线模块式气流牵伸装置
EP2377978A1 (en) * 2010-04-19 2011-10-19 3B-Fibreglass SPRL Method and apparatus for spreading fiber strands
CN102720003A (zh) * 2012-05-15 2012-10-10 山东泰鹏无纺有限公司 提高涤纶纺粘非织造布均匀度的方法及静电分丝装置
KR101684119B1 (ko) 2015-05-28 2016-12-07 현대자동차주식회사 정전기를 이용한 pet 섬유와 케이폭 섬유의 혼섬장치 및 이를 이용한 혼섬방법
KR20200052988A (ko) 2016-03-30 2020-05-15 미쓰이 가가쿠 가부시키가이샤 부직포의 제조 장치 및 부직포의 제조 방법
DK3438339T3 (da) * 2016-03-30 2021-04-26 Mitsui Chemicals Inc Indretning til fremstilling af ikkevævet stof, fremgangsmåde til fremstilling af ikkevævet stof og ikkevævet stof
EP3382080B1 (de) * 2017-03-28 2019-08-07 Reifenhäuser GmbH & Co. KG Maschinenfabrik Verfahren und vorrichtung zur herstellung eines vlieses aus fasern
IT201700035017A1 (it) * 2017-03-30 2018-09-30 M A E S P A Metodo per l'apertura di un fascio di fibre tessili, preferibilmente fibre chimiche o inorganiche
CN109082776B (zh) * 2018-09-21 2024-01-16 溧阳市绿茵毯业有限公司 以长丝束丝饼为原料的分丝成网装置及实现方法
CN114000263B (zh) * 2021-11-22 2022-09-27 江苏英伟医疗有限公司 全自动生产抗落絮无纺布的方法及临床全防护医用手术单

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US3341394A (en) † 1966-12-21 1967-09-12 Du Pont Sheets of randomly distributed continuous filaments
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DE2421401A1 (de) † 1974-05-03 1975-11-13 Benecke Gmbh J Verfahren und vorrichtung zur gleichmaessigen ablage von wirrfaser-endlos-spinnvliesen
FR2309654A1 (fr) † 1975-04-29 1976-11-26 Monsanto Co Procede et dispositif pour charger un faisceau de filaments
DE2838977A1 (de) † 1978-09-07 1980-03-20 Benecke Gmbh J Vorrichtung zur vergleichmaessigung des faserverlaufs in endlosfaser-spinnvlies-analgen
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JPH059535A (ja) † 1991-06-27 1993-01-19 Towa Taika Kogyo Kk 混銑車受銑口の耐火ライニング補修方法
JPH05311562A (ja) † 1992-04-28 1993-11-22 Kuraray Co Ltd 繊維の混繊開繊方法
DE4312419A1 (de) † 1993-04-16 1994-10-20 Reifenhaeuser Masch Anlage für die Herstellung einer Spinnvliesbahn aus aerodynamischen verstreckten Filamenten aus Kunststoff
EP0635077B1 (en) † 1992-04-10 1996-07-17 Fiberweb North America, Inc. Apparatus and method for producing a web of thermoplastic filaments
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US3338992A (en) † 1959-12-15 1967-08-29 Du Pont Process for forming non-woven filamentary structures from fiber-forming synthetic organic polymers
US3402227A (en) † 1965-01-25 1968-09-17 Du Pont Process for preparation of nonwoven webs
US3334161A (en) † 1965-02-10 1967-08-01 Du Pont Filament forwarding jet device
US3341394A (en) † 1966-12-21 1967-09-12 Du Pont Sheets of randomly distributed continuous filaments
DE2421401A1 (de) † 1974-05-03 1975-11-13 Benecke Gmbh J Verfahren und vorrichtung zur gleichmaessigen ablage von wirrfaser-endlos-spinnvliesen
FR2309654A1 (fr) † 1975-04-29 1976-11-26 Monsanto Co Procede et dispositif pour charger un faisceau de filaments
DE2838977A1 (de) † 1978-09-07 1980-03-20 Benecke Gmbh J Vorrichtung zur vergleichmaessigung des faserverlaufs in endlosfaser-spinnvlies-analgen
DE3727374A1 (de) † 1986-10-06 1988-04-21 Karl Marx Stadt Tech Textil Vorrichtung zum herstellen von elementarfadenvliesstoff
DE4014989A1 (de) † 1990-05-10 1991-11-14 Reifenhaeuser Masch Anlage fuer die herstellung einer spinnvliesbahn aus verstreckten kunststoff-filamenten
JPH059535A (ja) † 1991-06-27 1993-01-19 Towa Taika Kogyo Kk 混銑車受銑口の耐火ライニング補修方法
EP0635077B1 (en) † 1992-04-10 1996-07-17 Fiberweb North America, Inc. Apparatus and method for producing a web of thermoplastic filaments
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JPH05311562A (ja) † 1992-04-28 1993-11-22 Kuraray Co Ltd 繊維の混繊開繊方法
DE4312419A1 (de) † 1993-04-16 1994-10-20 Reifenhaeuser Masch Anlage für die Herstellung einer Spinnvliesbahn aus aerodynamischen verstreckten Filamenten aus Kunststoff
DE4312419C2 (de) † 1993-04-16 1996-02-22 Reifenhaeuser Masch Anlage für die Herstellung einer Spinnvliesbahn aus aerodynamischen verstreckten Filamenten aus Kunststoff
DE19518895A1 (de) † 1995-05-26 1996-11-28 Reifenhaeuser Masch Anlage für die Herstellung einer Vliesbahn aus Filamenten aus thermoplastischem Kunststoff
DE19521466A1 (de) † 1995-06-13 1996-12-19 Reifenhaeuser Masch Anlage für die Herstellung einer Spinnvliesbahn aus thermoplastischen Endlosfäden
DE19620379A1 (de) † 1996-05-21 1997-11-27 Reifenhaeuser Masch Anlage zur kontinuierlichen Herstellung einer Spinnvliesbahn
WO1998044176A1 (en) † 1997-03-27 1998-10-08 E.I. Du Pont De Nemours And Company Flash-spun products

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Also Published As

Publication number Publication date
IL146029A (en) 2006-06-11
TR200103043T2 (tr) 2002-04-22
FR2792656A1 (fr) 2000-10-27
CN1348513A (zh) 2002-05-08
US6966762B1 (en) 2005-11-22
WO2000065134A1 (fr) 2000-11-02
JP2002543299A (ja) 2002-12-17
DE60004660T2 (de) 2004-06-17
DE60004660D1 (de) 2003-09-25
IL146029A0 (en) 2002-07-25
AU4301300A (en) 2000-11-10
FR2792656B1 (fr) 2001-06-01
CN1168855C (zh) 2004-09-29
EP1177336A1 (fr) 2002-02-06
PL350364A1 (en) 2002-12-02
DE60004660T3 (de) 2009-04-02
EP1177336B1 (fr) 2003-08-20
PL191426B1 (pl) 2006-05-31
ATE247728T1 (de) 2003-09-15
JP4549541B2 (ja) 2010-09-22

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