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EP2325355B1 - Systeme de formation de fibres par electrofilage - Google Patents

Systeme de formation de fibres par electrofilage Download PDF

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Publication number
EP2325355B1
EP2325355B1 EP10014817A EP10014817A EP2325355B1 EP 2325355 B1 EP2325355 B1 EP 2325355B1 EP 10014817 A EP10014817 A EP 10014817A EP 10014817 A EP10014817 A EP 10014817A EP 2325355 B1 EP2325355 B1 EP 2325355B1
Authority
EP
European Patent Office
Prior art keywords
capillaries
head
spinning
transport mechanism
roller
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.)
Not-in-force
Application number
EP10014817A
Other languages
German (de)
English (en)
Other versions
EP2325355A1 (fr
Inventor
Izabella Krucinska
Eulalia Gliscinska
Michal Chrzanowski
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.)
Politechnika Lodzka
Original Assignee
Politechnika Lodzka
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 Politechnika Lodzka filed Critical Politechnika Lodzka
Priority to PL10014817T priority Critical patent/PL2325355T3/pl
Publication of EP2325355A1 publication Critical patent/EP2325355A1/fr
Application granted granted Critical
Publication of EP2325355B1 publication Critical patent/EP2325355B1/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
    • D01D5/0007—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

  • the subject of the invention is the electrospinning fiber throwing system.
  • Fiber throwing from polymer alloys or solutions using the electrospinning technique is based on the effects occurring in liquids and polymers under the influence of high voltage of specific polarity applied.
  • the system containing a single capillary with a nozzle, being an electrode feeding a polymer alloy or solution, connected to a high-voltage generator and a grounded collector electrode placed under it was applied.
  • the forces of the electrostatic field generated between the electrodes cause that a drop of polymer formed at the end of the nozzle undergoes a deformation into the so-called Taylor cone, which then, moving in the direction of the crown discharge current towards the grounded electrode, is accelerated and stretched to be finally collected on the surface of the collector electrode in the form of loosely packed fibers.
  • the work aimed at improving the efficiency of the electrospinning process focused on a change in the mode of taking up formed fibers as well as in the mode of feeding a polymer alloy or solution.
  • Electrostatics 2007 describes an electrospinning system where the take-up of formed fibers is done by means of rotary rollers, made from a conductive material, which are covered with subsequent fiber layers until the assumed thickness thereof is reached, while the patent description US 2009/00910655 A1 presents an electro spinning system in which formed fibers are taken up by rotating discs.
  • the referenced alloy or solution was forced by compressed air or diffusion pumps.
  • the foregoing techniques made it possible to isolate a polymer of high electric potential from the environment, thereby protecting system operators from electrocution, yet at the same time curbing the control of an amount of the extruded polymer and the time instability of the electro spinning process.
  • the Czech company Elmarko used an electrospinning system in which a spinning feed roller, immersed in a polymer solution, rotated, being covered with polymer film, while the voltage applied thereto caused that trickles of the polymer detached from the surface of the roller and formed fibers precipitated on an unwoven cloth belt traveling over the roller.
  • EP 1982735 A1 presents an electro spinning system in which a polymer is fed by several capillaries situated one by one in single file, while formed fibers are taken up by a rotating roller, located vertically.
  • the invented electro spinning fiber throwing system equipped with vertically positioned spinning capillaries connected to a source of high voltage and a device taking up formed fibers, located under the extrusion nozzles of the capillaries and linked to a driving unit, is characterized by the solution according to which the spinning capillaries are fixed in a spinning head from a non-conducting material, inside which there is a separator from a conductive material, connected to each of the capillaries and kitted in high-voltage terminals.
  • the head is mounted in a slidable manner, by means of a horizontal transport mechanism connected to the driving motor, on a horizontal guide whose ends are mounted slidably as well, by means of a vertical transport mechanism connected to the driving motor, on the upright arms of the system's load-bearing structure.
  • the system is equipped with a multithreaded peristaltic pump, each thread of which being linked to one of the spinning capillaries placed on the horizontal arm of the load-bearing structure.
  • the unit taking up formed fibers is an advantageously rotationally fixed roller or conveyor.
  • the head contains minimum 32 capillaries, advantageously spaced in four rows, at an advantageous distance of 3 cm from each other in each row and 6 cm between the rows.
  • the system contains an ancillary reheating element in the form of a drying tunnel, which makes it possible to evaporate dissolvent residue, collected at the outlet of the fiber take-up device, from formed fibers.
  • the system is marked by a considerably higher efficiency of the fiber throwing process compared to the systems known hitherto. Furthermore, the hazard of operators' electrocution has been eliminated from the system.
  • the subject of the invention is represented as a built model in a figure showing the system from a front view.
  • the system is equipped with the 32 vertically situated spinning capillaries 1, fixed in the Teflon spinning head 2.
  • the capillaries 1 are positioned in the four rows, at a distance of 3 cm from each other in each row and 6 cm between the rows.
  • the head 2 has the built-in steel wool separator 3, linked to each of the capillaries 1 and kitted in the high-voltage terminals.
  • the head 2 is mounted in a slidable manner, by means of the horizontal transport mechanism 4 connected to the driving motor, on the horizontal guide 5 whose ends are mounted slidably, by means of the vertical transport mechanism 7 connected to the driving motor, on the upright arms 6 of the system's load-bearing structure.
  • the peristaltic pump 9 is filled with the polymer and the separator 3 is connected to the source of high voltage, thus starting the pumping of the polymer into the capillaries 1.
  • the guide 5 with the head 2 is positioned at an adequate distance from the take-up roller 8 by means of the vertical transport mechanism 7.
  • the horizontal motion range of the head 2 along the guide 5 so it can extend over the entire work area of the roller 8 is set up by means of the horizontal transport mechanism 4 and the unit driving the roller 8 is activated.
  • the roller 8 is set in rotary motion
  • the head 2 is set in horizontal motion along the guide 5 by means of the horizontal transport mechanism 4.
  • Formed nanofibers are taken up on the grounded roller 8 in the form of unwoven cloth.
  • the obtained layer of unwoven cloth desirably thick, passes through the drying tunnel whose outlet releases the finished product.
  • the system was used for nanofiber throwing in the form of unwoven fabric from:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Claims (3)

  1. Un système pour former des fibres par électrofilage, équipé des capillaires de filage localisés verticalement reliés à une source de haute tension ainsi que d'un dispositif à la réception des fibres formées localisé au-dessous des buses de ces capillaires relié à un dispositif de commande, caractérisé en ce que les capillaires de filage (1) sont installés dans la tête de filage (2) en matériau non conducteur, à l'intérieur de laquelle est placée une pièce d'écartement (3) en matériau conducteur, reliée à chacun capillaire (1), dotée en raccordement à une source de haute tension, mais la tête (2) est installée d'une manière coulissante par l'intermédiaire d'un mécanisme (4) du déplacement horizontal à un moteur d'entraînement, sur la glissière horizontale (5) dont les extrémités sont installées d'une manière coulissante, par l'intermédiaire d'un mécanisme (7) du déplacement vertical relié à un moteur d'entraînement, sur les bras verticaux (6) du châssis-support d'un système, en plus le système est équipé d'une pompe péristaltique à plusieurs voies (9) dont chacune des voies est reliée à un des capillaires de filage (1) localisée sur le bras horizontal (10) du châssis - support du système et [ast équipé] d'un élément de réchauffement sous forme d'un tunnel de séchage localisé à la sortie du dispositif (8) à la réception des fibres.
  2. Le système selon la revendication 1, caractérisé en ce que la tâte (2) comprend au moins 32 capillaires localisés de préférence en quatre rangées, la distance entre eux de préférence de 3 cm dans une rangée et la distance entre les rangées de 6 cm.
  3. Le système selon la revendication 1, caractérisé en ce qu'en tant que dispositif (8) à la réception des fibres formées de préférence est utilisé le cylindre ou le transporteur en métal monté d'une manière rotative.
EP10014817A 2009-11-24 2010-11-22 Systeme de formation de fibres par electrofilage Not-in-force EP2325355B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10014817T PL2325355T3 (pl) 2009-11-24 2010-11-22 Układ do formowania włókien metodą elektroprzędzenia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL389660A PL217525B1 (pl) 2009-11-24 2009-11-24 Układ do formowania włókien metodą elektroprzędzenia

Publications (2)

Publication Number Publication Date
EP2325355A1 EP2325355A1 (fr) 2011-05-25
EP2325355B1 true EP2325355B1 (fr) 2012-11-21

Family

ID=43585612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10014817A Not-in-force EP2325355B1 (fr) 2009-11-24 2010-11-22 Systeme de formation de fibres par electrofilage

Country Status (2)

Country Link
EP (1) EP2325355B1 (fr)
PL (2) PL217525B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105162004B (zh) * 2015-06-17 2017-05-03 中国南方电网有限责任公司超高压输电公司柳州局 一种伸缩式隔离开关上导电臂更换工具
CN112301792A (zh) * 2020-06-30 2021-02-02 聚纳达(青岛)科技有限公司 一种新型工业滤纸及制备方法和高效生产装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60135019D1 (de) 2000-11-17 2008-09-04 Univ Virginia Commonwealth Elektroverarbeitetes kollagen
KR100458946B1 (ko) * 2002-08-16 2004-12-03 (주)삼신크리에이션 나노섬유 제조를 위한 전기방사장치 및 이를 위한방사노즐팩
US7762801B2 (en) * 2004-04-08 2010-07-27 Research Triangle Institute Electrospray/electrospinning apparatus and method
WO2006009854A2 (fr) * 2004-06-18 2006-01-26 Yale University Augmentation du rendement de l'electronebulisation par des sources multiplexees microfabriquees pour la production adaptable de gouttelettes monodispersees
US7629030B2 (en) * 2006-12-05 2009-12-08 Nanostatics, Llc Electrospraying/electrospinning array utilizing a replacement array of individual tip flow restriction
GB0704615D0 (en) * 2007-03-09 2007-04-18 Univ Gent A process for the preparation of highly porous nanofibrous structures and a device for preparing as such

Also Published As

Publication number Publication date
EP2325355A1 (fr) 2011-05-25
PL389660A1 (pl) 2011-06-06
PL217525B1 (pl) 2014-07-31
PL2325355T3 (pl) 2013-03-29

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