EP2746439A1 - Means for application of polymer solution on cord spinning electrode - Google Patents

Means for application of polymer solution on cord spinning electrode Download PDF

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Publication number
EP2746439A1
EP2746439A1 EP13193648.6A EP13193648A EP2746439A1 EP 2746439 A1 EP2746439 A1 EP 2746439A1 EP 13193648 A EP13193648 A EP 13193648A EP 2746439 A1 EP2746439 A1 EP 2746439A1
Authority
EP
European Patent Office
Prior art keywords
channel
cord
application
polymer solution
guiding elements
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
EP13193648.6A
Other languages
German (de)
French (fr)
Other versions
EP2746439B1 (en
Inventor
Ladislav Sevcík
Milan Nýdrle
Michal Petr
David Velrych
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.)
Technicka Univerzita v Liberci
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Technicka Univerzita v Liberci
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Publication date
Application filed by Technicka Univerzita v Liberci filed Critical Technicka Univerzita v Liberci
Publication of EP2746439A1 publication Critical patent/EP2746439A1/en
Application granted granted Critical
Publication of EP2746439B1 publication Critical patent/EP2746439B1/en
Not-in-force legal-status Critical Current
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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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
    • 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 invention relates to a means of application of polymer solution on a cord spinning electrode of a device for the production of nanofibers using electrostatic spinning of a polymer solution in an electrostatic field of high intensity comprising a channel for a cord electrode, which passes through the channel of the polymer solution.
  • the aim of the invention is to decrease the precision of the setting of the position of the means of application in relation to the cord while maintaining the quality of the process of the application of the polymer on the cord and to achieve the longest possible service life of both the means of application and the cord.
  • the goal of the invention is achieved by a means of application, whose principle consists in that in the channel for a cord electrode at least two mutually perpendicular pairs of guiding elements are mounted, whereby the gap between the guiding elements of a respective pair is smaller than the smallest dimension of the channel for a cord electrode.
  • the cross section of the channel for the cord electrode becomes smaller, the cord is guided more precisely and owing to the fact that the guiding elements are made of an abrasion-resistant material, they are not cut into and, as a result of the cord being guided more precisely, cutting into the channel for the cord electrode is also avoided.
  • one pair of mutually perpendicular guiding elements is mounted in a holder arranged in the body of the means of application, whereby the gap between the guiding elements of the respective pair lies in the channel of the polymer solution in the area of the passage of the channel for the cord electrode.
  • Another embodiment comprises two mutually perpendicular pairs of guiding elements located at both ends of the means of application and overlapping in the channel for the cord electrode. This embodiment provides more precise guiding and allows the maximum possible deviation of the position of the cord electrode.
  • FIG. 1 shows a means of application with a central guidance for a cord electrode
  • Fig. 2 represents a means of application with edge guidance for a cord electrode.
  • the means of application is represented in the drawings very schematically, whereby only the parts essential for the explanation of the invention are shown and even those parts are shown in a schematic manner.
  • the means of application is a part of the application device.
  • a channel 4 which is during the process of application filled with a polymer solution
  • a channel 3 which is perpendicular to the channel 4 , for the passage of an unillustrated cord electrode, which passes through the channel 4 of the polymer solution.
  • a holder 6 which extends to the channel 4 of the polymer solution.
  • a pair of first guiding elements 1 and a pair of second guiding elements 2 Arranged in the holder 6 is a pair of first guiding elements 1 and a pair of second guiding elements 2 , which is perpendicular to the pair of first guiding elements 1.
  • Both pairs of the guiding elements 1 , 2 are located in such a manner that the gap between the guiding elements 1 or 2 of the corresponding pair lies in the channel 4 of the polymer solution in the area of the passage of the channel 3 for the cord electrode and the distance between them is smaller than the diameter of the channel 3 for the cord electrode.
  • the guiding elements are made of abrasion-resistant material, advantagously ceramics, and in the illustrated embodiment they have a shape of cylindrical rods, whereby their shape can be changed another shape suitable for guiding a cord electrode.
  • the curves 5 in Fig. 1 represent the area through which the cord electrode can pass.
  • the channel 3 for the cord electrode can also have any cross section other than cylindrical, such as square or rectangular. In that case the gap between the guiding elements 1 or 2 of the corresponding pair is smaller than the smallest dimension of the channel 3 for the cord electrode.
  • This embodiment allows a larger deviation from the position of the cord electrode illustrated by the curves 5 in Fig. 2 .

Landscapes

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

Abstract

A means of application of polymer solution on a cord spinning electrode of a device for the production of nanofibers by electrostatic spinning of a polymer solution in an electrostatic field of high intensity comprising a channel (3) for a cord electrode, which passes through a channel (4) of polymer solution. Mounted in the channel (3) for the cord electrode are at least two mutually perpendicular pairs of guiding elements (1, 2), whereby the gap between the guiding elements (1) or (2) of the corresponding pair is smaller than the smallest dimension of the channel (3) for the cord electrode.

Description

    Technical field
  • The invention relates to a means of application of polymer solution on a cord spinning electrode of a device for the production of nanofibers using electrostatic spinning of a polymer solution in an electrostatic field of high intensity comprising a channel for a cord electrode, which passes through the channel of the polymer solution.
    • Background art
  • Current devices for the production of nanofibers by electrostatic spinning of a polymer solution in an electrostatic field of high intensity use spinning electrodes composed of a cord fastened between guiders mounted on the frame of the machine in a spinning chamber. The polymer solution is applied on the cord by an application device, which for each cord comprises a means of application, whereby in the means of application a supply chamber is created, filled with a polymer solution for the application and interconnected with the outside environment by means of two application orifices, through which during the application a cord passes, the polymer solution leaking through the gap between the cord and the wall of the application orifices.
  • It is difficult to set the position of the application orifices precisely in relation to the cord as well as to maintain the set position. In the case of a deviation of the application orifices from the position in relation to the cord, the cord is torn or the means of application is cut into in the area of the orifices, and, as a result, the whole means of application is depreciated.
  • The aim of the invention is to decrease the precision of the setting of the position of the means of application in relation to the cord while maintaining the quality of the process of the application of the polymer on the cord and to achieve the longest possible service life of both the means of application and the cord.
    • Principle of invention
  • The goal of the invention is achieved by a means of application, whose principle consists in that in the channel for a cord electrode at least two mutually perpendicular pairs of guiding elements are mounted, whereby the gap between the guiding elements of a respective pair is smaller than the smallest dimension of the channel for a cord electrode. Although in the place of the guiding elements the cross section of the channel for the cord electrode becomes smaller, the cord is guided more precisely and owing to the fact that the guiding elements are made of an abrasion-resistant material, they are not cut into and, as a result of the cord being guided more precisely, cutting into the channel for the cord electrode is also avoided.
  • In a more simple embodiment one pair of mutually perpendicular guiding elements is mounted in a holder arranged in the body of the means of application, whereby the gap between the guiding elements of the respective pair lies in the channel of the polymer solution in the area of the passage of the channel for the cord electrode.
  • Another embodiment comprises two mutually perpendicular pairs of guiding elements located at both ends of the means of application and overlapping in the channel for the cord electrode. This embodiment provides more precise guiding and allows the maximum possible deviation of the position of the cord electrode.
    • Description of drawings
  • An example of embodiment is schematically represented in the drawings, where Fig. 1 shows a means of application with a central guidance for a cord electrode and Fig. 2 represents a means of application with edge guidance for a cord electrode.
    • Examples of embodiment
  • The means of application is represented in the drawings very schematically, whereby only the parts essential for the explanation of the invention are shown and even those parts are shown in a schematic manner. The means of application is a part of the application device.
  • In the body of the means of application there is created a channel 4, which is during the process of application filled with a polymer solution, and a channel 3, which is perpendicular to the channel 4, for the passage of an unillustrated cord electrode, which passes through the channel 4 of the polymer solution. In the embodiment according to Fig. 1 in the body of the means of application there is mounted a holder 6, which extends to the channel 4 of the polymer solution. Arranged in the holder 6 is a pair of first guiding elements 1 and a pair of second guiding elements 2, which is perpendicular to the pair of first guiding elements 1. Both pairs of the guiding elements 1, 2 are located in such a manner that the gap between the guiding elements 1 or 2 of the corresponding pair lies in the channel 4 of the polymer solution in the area of the passage of the channel 3 for the cord electrode and the distance between them is smaller than the diameter of the channel 3 for the cord electrode. The guiding elements are made of abrasion-resistant material, advantagously ceramics, and in the illustrated embodiment they have a shape of cylindrical rods, whereby their shape can be changed another shape suitable for guiding a cord electrode. The curves 5 in Fig. 1 represent the area through which the cord electrode can pass.
  • The channel 3 for the cord electrode can also have any cross section other than cylindrical, such as square or rectangular. In that case the gap between the guiding elements 1 or 2 of the corresponding pair is smaller than the smallest dimension of the channel 3 for the cord electrode.
  • Locating the guiding elements 1, 2 in the channel 4 of the polymer solution worsens the flow properties of this channel 4, and therefore the embodiment illustrated in Fig. 2 has been proposed, in which two mutually perpendicular pairs of guiding elements 1, 2 are arranged at both end of the means of application, extending in the channel 3 for the cord electrode. This embodiment allows a larger deviation from the position of the cord electrode illustrated by the curves 5 in Fig. 2.
    • List of references
    • 1
    horizontal guiding elements
    2
    vertical guiding elements
    3
    application orifices/channel for the cord electrode
    4
    channel of polymer solution
    5
    determination of the maximum deviation of the cord electrode position
    6
    central component for fastening the guiding elements

Claims (4)

  1. A means of application of polymer solution on a cord spinning electrode of a device for the production of nanofibers by electrostatic spinning of a polymer solution in an electrostatic field of high intensity comprising a channel (3) for a cord electrode, which passes through a channel (4) of the polymer solution, characterized in that mounted in the channel (3) for a cord electrode are at least two mutually perpendicular pairs of guiding elements (1, 2), whereby the gap between the guiding elements (1) or (2) of the corresponding pair is smaller than the smallest dimension of the channel (3) for the cord electrode.
  2. A means of application according to Claim 1, characterized in that one pair of mutually perpendicular guiding elements (1, 2) is mounted in a holder (6) arranged in the body of the means of application, whereby the gap between the guiding elements (1) or (2) of the corresponding pair lies in the channel (4) of the polymer solution in the area of the passage of the channel (3) for the cord electrode.
  3. A means of application according to Claim 1, characterized in that two mutually perpendicular pairs of guiding elements (1, 2) are located at both end of the means of application and extend in the channel (3) for the cord electrode.
  4. A means of application according to any of the Claims 1 to 3, characterized in that the guiding elements (1, 2) are made of an abrasion-resistant material.
EP13193648.6A 2012-12-21 2013-11-20 Means for application of polymer solution on cord spinning electrode Not-in-force EP2746439B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2012-950A CZ304202B6 (en) 2012-12-21 2012-12-21 Applying means of polymer solution to string spinning electrode

Publications (2)

Publication Number Publication Date
EP2746439A1 true EP2746439A1 (en) 2014-06-25
EP2746439B1 EP2746439B1 (en) 2016-02-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13193648.6A Not-in-force EP2746439B1 (en) 2012-12-21 2013-11-20 Means for application of polymer solution on cord spinning electrode

Country Status (2)

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EP (1) EP2746439B1 (en)
CZ (1) CZ304202B6 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018129264A1 (en) * 2017-01-06 2018-07-12 Sabic Global Technologies B.V. Apparatus for electrospinning liquid polymer into nanoscale or submicron scale fibers
CN110168150A (en) * 2017-01-06 2019-08-23 沙特基础工业全球技术有限公司 Continuous lines drive system for needleless electrostatic spinning apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010020A2 (en) * 2007-07-17 2009-01-22 Elmarco S.R.O, Method for spinning the liquid matrix, device for production of nanofibres through electrostatic spinning of liquid matrix and spinning electrode for such device
WO2009067368A2 (en) * 2007-11-20 2009-05-28 Clarcor Inc. Fine fiber electro-spinning equipment, filter media systems and methods
WO2012028117A1 (en) * 2010-08-30 2012-03-08 Elmarco S.R.O. A device for production of nanofibres
WO2012139533A1 (en) * 2011-04-12 2012-10-18 Elmarco S.R.O. Method for application of liquid polymeric material onto spinning cords and a device for production of nanofibers through electrostatic spinning

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010020A2 (en) * 2007-07-17 2009-01-22 Elmarco S.R.O, Method for spinning the liquid matrix, device for production of nanofibres through electrostatic spinning of liquid matrix and spinning electrode for such device
WO2009067368A2 (en) * 2007-11-20 2009-05-28 Clarcor Inc. Fine fiber electro-spinning equipment, filter media systems and methods
WO2012028117A1 (en) * 2010-08-30 2012-03-08 Elmarco S.R.O. A device for production of nanofibres
WO2012139533A1 (en) * 2011-04-12 2012-10-18 Elmarco S.R.O. Method for application of liquid polymeric material onto spinning cords and a device for production of nanofibers through electrostatic spinning

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018129264A1 (en) * 2017-01-06 2018-07-12 Sabic Global Technologies B.V. Apparatus for electrospinning liquid polymer into nanoscale or submicron scale fibers
CN110168149A (en) * 2017-01-06 2019-08-23 沙特基础工业全球技术有限公司 By liquid polymers electrostatic spinning at nanoscale or the device of Sub-micro Fibers
CN110168150A (en) * 2017-01-06 2019-08-23 沙特基础工业全球技术有限公司 Continuous lines drive system for needleless electrostatic spinning apparatus
CN110168149B (en) * 2017-01-06 2020-08-11 沙特基础工业全球技术有限公司 Device for electrospinning liquid polymer into nano-scale or submicron-scale fibers
US10745827B2 (en) 2017-01-06 2020-08-18 Sabic Global Technologies B.V. Apparatus for electrospinning liquid polymer into nanoscale or submicron scale fibers

Also Published As

Publication number Publication date
EP2746439B1 (en) 2016-02-03
CZ2012950A3 (en) 2013-12-27
CZ304202B6 (en) 2013-12-27

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