EP1409775A1 - Dispositif destine a produire des fibres dans le cadre d'un procede de filage electrostatique - Google Patents

Dispositif destine a produire des fibres dans le cadre d'un procede de filage electrostatique

Info

Publication number
EP1409775A1
EP1409775A1 EP02754394A EP02754394A EP1409775A1 EP 1409775 A1 EP1409775 A1 EP 1409775A1 EP 02754394 A EP02754394 A EP 02754394A EP 02754394 A EP02754394 A EP 02754394A EP 1409775 A1 EP1409775 A1 EP 1409775A1
Authority
EP
European Patent Office
Prior art keywords
spray
electrode
electrodes
plates
polymer
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
EP02754394A
Other languages
German (de)
English (en)
Other versions
EP1409775B1 (fr
Inventor
Wolfgang Czado
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.)
Mann+hummel Innenraumfilter & Co KG GmbH
Original Assignee
Helsa Werke Helmut Sandler 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7693064&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1409775(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Helsa Werke Helmut Sandler GmbH and Co KG filed Critical Helsa Werke Helmut Sandler GmbH and Co KG
Publication of EP1409775A1 publication Critical patent/EP1409775A1/fr
Application granted granted Critical
Publication of EP1409775B1 publication Critical patent/EP1409775B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin

Definitions

  • Such devices are basically known from the prior art.
  • a polymer in the form of a polymer melt or in the form of a solution is introduced into an electric field and spun into fibers by the action of the electric field.
  • An electrode usually forms a receiving device for the spun fibers, while the counter electrode is designed as a spraying electrode or spray nozzle.
  • Spray electrodes or several spray plates arranged side by side, in particular triangular, trapezoidal, square or rounded Are shape. It is preferred here if the spray electrodes or spray plates are arranged next to one another at a distance in the range from 2 to 10 cm. On the one hand, the peak effect is most pronounced and, on the other hand, the nano and / or microfibers produced by the electrostatic spinning process can be deposited into a particularly regular nonwoven with spray electrodes or spray plates. The same applies, of course, in the aforementioned embodiment with a jagged or corrugated design of the spray electrode or the spray plate. The tips of the spikes or the apexes of the waves are spaced from each other in the range of 2 to 10 cm.
  • Spray electrodes or spray plates is promoted.
  • the surface of the polymer solution or the polymer melt exposed to the environment is kept as small as possible, so that, for example, unnecessary solvent losses are avoided.
  • the heat loss is kept low, which advantageously contributes to energy savings when operating the device according to the invention.
  • the device according to the invention is closed or encapsulated with a lid such that only the at least one spraying electrode or the at least one spraying plate protrudes from the device. This advantageously further reduces the evaporation of solvents or cooling of the melt.
  • the conveying device is formed by one or more lines or line systems for conveying the polymer solution or the polymer melt from the at least one storage vessel to the at least one spray electrode or the at least one spray plate.
  • the one or more lines or line systems for conveying the polymer solution or the polymer melt from the at least one storage vessel to the at least one spray electrode or the at least one spray plate.
  • the feed device is then actuated either in a predetermined time interval or controlled by an operator and the used spray electrode or the used spray element is released from the device according to the invention and a new spray electrode or a new spray plate is brought into an operating position for electrostatic spinning of a polymer.
  • the particular advantage of this embodiment is that additional handling of solvents and a corresponding cleaning of the spray electrodes or spray plates can be omitted, as a result of which a higher level of operational safety is achieved, because the effort to completely clean the spray plates or
  • Spray electrodes is comparatively large if the quality of the product, i.e. the fibers or nonwovens produced should be ensured.
  • the counter electrode is preferably formed by a rigid sheet, an electrically conductive, circumferential band or a fleece. It is particularly preferred if the counter electrode is formed by an electrically conductive, circumferential band made of wire mesh or metal foil, this band moving in particular with a carrier material on which the fibers produced by the electrostatic spinning are placed. This avoids the application of tensile forces on the carrier material. It is most preferred if the counter electrode is formed from electrospun fibers of opposite polarity. This carrier material is then simultaneously coated on the top and bottom by two spray devices with fibers of opposite polarity. This creates a much more effective filter material, since a higher charge density can be achieved and both the positive and negative charges are firmly fixed in the fibers.
  • water-soluble polymers e.g. Polyvinyl alcohol, polyvinyl pyrrolidine, polyethylene oxide and its copolymers, cellulose and its derivatives, starch and mixtures of these polymers.
  • Polymers which are soluble in organic solvents can also be spun in the device according to the invention.
  • Polystyrene, polycarbonate, polyvinyl chloride, polyacrylate, polymethacrylate, polyvinyl acetate, polyvinyl acetal, polyvinyl ether, polyurethane, polyamide, polysulfone, polyether sulfone, polyacrylonitrile, cellulose derivatives and mixtures of these polymers are particularly worth mentioning here.
  • Polymers spinnable from the melt are e.g. Thermoplastics such as polyolefins, polyester, polyoxymethylene, polychlorotrifluoroethylene,
  • Figure 2 is a schematic plan view of a conveyor roller with adjacent spray electrodes or spray plates;
  • FIG. 3 is a schematic representation of an embodiment in which the
  • Spray electrodes or spray plates are arranged on a transport device
  • FIG. 4 shows a second embodiment of the present invention, in which the spray electrodes or spray plates are arranged on a transport wheel and pass through a cleaning bath;
  • FIG. 1 shows a first embodiment of the device according to the invention for the electrostatic spinning of polymers.
  • a conveyor device 1 formed by a conveyor roller is arranged in a storage container for the polymer solution or the polymer melt 2, the conveyor roller 1 conveying polymer solution or polymer melt from the storage vessel and transferring it to the adjacent spraying electrode 3, generally also referred to as a spraying plate.
  • a high-voltage generator 4 generates the potential difference required between the spray electrode 3 and the counter electrode 5, so that the polymer contained in the storage vessel 2 is spun into fibers 6 in the electrostatic field.
  • a 5% polystyrene solution in dichloromethane is mixed with 0.5 rhodamine G6 and spun at 50 revolutions of the conveyor roller (diameter 7 cm) per minute.
  • the spray plates are directly opposite each other at a distance of 20 cm, the carrier fleece (micro-spunbond polypropylene fleece with 60 g / m 2 ) is in the middle at a speed of 0.5 m / min. passed.
  • a high voltage of + or - 15 kV is applied to the spray plates.
  • the carrier fleece coated in this way has a deposition rate of 50% of the 0.3-0.5 ⁇ m fraction of NaCl. Measured at a flow rate of 50 l / min. and a flow area of 100 cm 2 .
  • the air resistance of the carrier fleece was increased under these conditions by the coating from 8 to 16 Pa.

Abstract

La présente invention concerne un dispositif destiné à produire des fibres (6) dans le cadre d'un procédé de filage électrostatique, ledit dispositif comprenant un réservoir destiné à une solution polymère ou à une masse polymère en fusion, un système d'acheminement (1) disposé dans le réservoir, au moins une électrode de pulvérisation (3; 3a; 3b) ou au moins une tôle de pulvérisation et une contre-électrode (5), l'électrode/les électrodes de pulvérisation ou la/les tôle(s) de pulvérisation étant disposé(s) contre le système d'acheminement (1) de sorte que la solution polymère ou matière polymère en fusion acheminée depuis le réservoir par le système d'acheminement (1), s'écoule sur l'électrode/les électrodes de pulvérisation (3; 3a; 3b) ou sur la/les tôle(s) de pulvérisation. L'invention a également pour objet un procédé destiné au filage électrostatique de polymères par utilisation du dispositif de l'invention.
EP02754394A 2001-07-25 2002-07-19 Dispositif destine a produire des fibres dans le cadre d'un procede de filage electrostatique Expired - Lifetime EP1409775B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10136256A DE10136256B4 (de) 2001-07-25 2001-07-25 Vorrichtung zur Herstellung von Fasern in einem elektrostatischen Spinnverfahren
DE10136256 2001-07-25
PCT/DE2002/002654 WO2003016601A1 (fr) 2001-07-25 2002-07-19 Dispositif destine a produire des fibres dans le cadre d'un procede de filage electrostatique

Publications (2)

Publication Number Publication Date
EP1409775A1 true EP1409775A1 (fr) 2004-04-21
EP1409775B1 EP1409775B1 (fr) 2004-12-22

Family

ID=7693064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02754394A Expired - Lifetime EP1409775B1 (fr) 2001-07-25 2002-07-19 Dispositif destine a produire des fibres dans le cadre d'un procede de filage electrostatique

Country Status (3)

Country Link
EP (1) EP1409775B1 (fr)
DE (2) DE10136256B4 (fr)
WO (1) WO2003016601A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102137962B (zh) * 2008-06-24 2013-05-22 斯泰伦博斯大学 用于制造精细纤维的方法及装置
US8727756B2 (en) 2012-01-19 2014-05-20 Contipro Biotech S.R.O. Combined spinning nozzle for the manufacture of nanofibrous and microfibrous materials
JP2015081391A (ja) * 2013-10-22 2015-04-27 積水化学工業株式会社 電界紡糸装置
US9718012B2 (en) 2000-09-05 2017-08-01 Donaldson Company, Inc. Fine fiber media layer

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DE10310435B3 (de) * 2003-02-05 2004-06-03 Helsa-Werke Helmut Sandler Gmbh & Co. Kg Filterelement und Verfahren zu seiner Herstellung
CZ294274B6 (cs) * 2003-09-08 2004-11-10 Technická univerzita v Liberci Způsob výroby nanovláken z polymerního roztoku elektrostatickým zvlákňováním a zařízení k provádění způsobu
CZ299537B6 (cs) * 2005-06-07 2008-08-27 Elmarco, S. R. O. Zpusob a zarízení k výrobe nanovláken z polymerního roztoku elektrostatickým zvláknováním
DE102007027014A1 (de) 2007-06-08 2008-12-18 Rainer Busch Vorrichtung zur Herstellung von Nano- und Microfasern durch elektrostatisches Spinnen einer durch Zentrifugalkräften in radialer Richtung aufgeschichteten Polymerlösung
CZ300345B6 (cs) * 2007-07-17 2009-04-22 Elmarco, S. R. O. Zpusob zvláknování kapalné matrice, zarízení pro výrobu nanovláken elektrostatickým zvláknováním kapalné matrice a zvláknovací elektroda pro takové zarízení
DE102007055409A1 (de) 2007-11-19 2009-05-20 Helsa-Automotive Gmbh & Co. Kg Verfahren zur Herstellung von Polyetherimid-Fasern durch Verspinnen von Polyetherimid im elektrischen Feld
US7815427B2 (en) 2007-11-20 2010-10-19 Clarcor, Inc. Apparatus and method for reducing solvent loss for electro-spinning of fine fibers
US7967588B2 (en) 2007-11-20 2011-06-28 Clarcor Inc. Fine fiber electro-spinning equipment, filter media systems and methods
AU2008326615B2 (en) 2007-11-20 2013-09-26 Clarcor Inc. Filtration medias, fine fibers under 100 nanometers, and methods
GB2462112B (en) * 2008-07-24 2012-11-07 Stfc Science & Technology An apparatus and method for producing fibres
SG174346A1 (en) 2009-03-19 2011-11-28 Millipore Corp Removal of microorganisms from fluid samples using nanofiber filtration media
CZ302876B6 (cs) * 2009-07-01 2011-12-28 Technická univerzita v Liberci Zpusob a zarízení k výrobe nanovláken preplavovacím elektrostatickým zvláknováním
CZ308360B6 (cs) * 2009-08-06 2020-06-24 Elmarco S.R.O. Rotační zvlákňovací elektroda
US20110210081A1 (en) 2010-02-26 2011-09-01 Clarcor Inc. Fine fiber liquid particulate filter media
CN102312296B (zh) * 2010-06-30 2013-10-30 财团法人纺织产业综合研究所 滚筒式电纺设备
TWI406982B (zh) 2010-06-30 2013-09-01 Taiwan Textile Res Inst 滾筒式電紡設備
US9623352B2 (en) 2010-08-10 2017-04-18 Emd Millipore Corporation Method for retrovirus removal
CN101985793B (zh) * 2010-11-22 2012-07-25 北京化工大学 静电纺丝法连续制备无纺布制品的装置
CN103459006B (zh) 2011-04-01 2016-01-06 Emd密理博公司 含有纳米纤维的复合材料结构
CZ2011273A3 (cs) * 2011-05-09 2012-07-18 Výzkumný ústav potravinárský Praha, v.v.i. Zpusob a zarízení pro beztryskovou odstredivou výrobu nanovláken a mikrovláken na povrchu rotujících válcu
CZ2011299A3 (cs) * 2011-05-18 2012-07-18 Výzkumný ústav potravinárský Praha, v.v.i. Zpusob a zarízení pro beztryskovou odstredivou výrobu nanovláken a mikrovláken s použitím rotujících válcu s profilovaným povrchem
CN102925996A (zh) * 2012-04-10 2013-02-13 南京理工大学 采用特殊滚筒的静电成形方法
CN102704193A (zh) * 2012-06-25 2012-10-03 威程(天津)科技有限公司 一种多实心针电极纳米纤维非织造布生产装置
CN102704192A (zh) * 2012-06-25 2012-10-03 天津工业大学 一种多辊实心针电极纳米纤维非织造布生产装置
CN103065543B (zh) * 2013-01-20 2014-09-10 青岛大学 一种便携式熔体静电纺丝教学演示装置
DE102014004631A1 (de) 2013-05-17 2014-11-20 Mann + Hummel Gmbh Vorrichtung und Verfahren zum elektrostatischen Verspinnen von Polymerlösungen und Filtermedium
WO2016167871A1 (fr) 2015-04-17 2016-10-20 Emd Millipore Corporation Procédé de purification d'une matière biologique d'intérêt dans un échantillon au moyen de membranes d'ultrafiltration à nanofibres mises en oeuvre en mode de filtration de flux tangentiel
CN104894661A (zh) * 2015-07-06 2015-09-09 苏州大学 一种静电纺丝装置
CN105401233B (zh) * 2015-11-11 2017-09-26 佛山轻子精密测控技术有限公司 一种尖齿笼状电极静电纺丝装置
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CN113195802A (zh) * 2018-11-01 2021-07-30 Emd密理博公司 纳米纤维结构的高效生产
US20220243363A1 (en) * 2019-07-24 2022-08-04 Nanoshields Technology Limited Device and method for applying nanofibers and/or microfibers onto a substrate, and system comprising the devices

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9718012B2 (en) 2000-09-05 2017-08-01 Donaldson Company, Inc. Fine fiber media layer
US10272374B2 (en) 2000-09-05 2019-04-30 Donaldson Company, Inc. Fine fiber media layer
US10967315B2 (en) 2000-09-05 2021-04-06 Donaldson Company, Inc. Fine fiber media layer
CN102137962B (zh) * 2008-06-24 2013-05-22 斯泰伦博斯大学 用于制造精细纤维的方法及装置
US8727756B2 (en) 2012-01-19 2014-05-20 Contipro Biotech S.R.O. Combined spinning nozzle for the manufacture of nanofibrous and microfibrous materials
JP2015081391A (ja) * 2013-10-22 2015-04-27 積水化学工業株式会社 電界紡糸装置

Also Published As

Publication number Publication date
DE10136256A1 (de) 2003-04-24
WO2003016601A1 (fr) 2003-02-27
DE50201852D1 (de) 2005-01-27
DE10136256B4 (de) 2005-03-31
EP1409775B1 (fr) 2004-12-22

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