EP1910591A1 - A method and device for production of nanofibres from the polymeric solution through electrostatic spinning - Google Patents

A method and device for production of nanofibres from the polymeric solution through electrostatic spinning

Info

Publication number
EP1910591A1
EP1910591A1 EP06753162A EP06753162A EP1910591A1 EP 1910591 A1 EP1910591 A1 EP 1910591A1 EP 06753162 A EP06753162 A EP 06753162A EP 06753162 A EP06753162 A EP 06753162A EP 1910591 A1 EP1910591 A1 EP 1910591A1
Authority
EP
European Patent Office
Prior art keywords
spinning
electrode
spinning electrode
electric field
polymeric solution
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.)
Withdrawn
Application number
EP06753162A
Other languages
German (de)
English (en)
French (fr)
Inventor
David PETRÁS
Ladislav Mares
Denisa STRÁNSKÁ
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.)
Elmarco sro
Original Assignee
Elmarco sro
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 Elmarco sro filed Critical Elmarco sro
Publication of EP1910591A1 publication Critical patent/EP1910591A1/en
Withdrawn legal-status Critical Current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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures

Definitions

  • the invention relates to the production method of nanofibres from the polymeric solution through electrostatic spinning in electric field created by a difference of potentials between the collecting electrode and pivoted spinning electrode of an oblong shape touching by a part of its circuit the polymeric solution, while by rotation of the spinning electrode the polymeric solution, at least by a portion of its surface, is carried out into the electric field in which on the surface of the collecting electrode the nanofibres are created which are carried to the collecting electrode and deposited on the surface of a basic material guided between the spinning electrode and collecting electrode in vicinity of the collecting electrode.
  • the invention also relates to the device for production of nanofibres from polymeric solution through electrostatic spinning in electric field created by a difference of potentials between the collecting electrode and the pivoted spinning electrode of an oblong shape coupled with a drive and touching by at least a portion of its surface the polymeric solution with the objective to carry out the polymeric solution by these portions of surface into the electric field between the spinning electrode and the collecting electrode, while between the spinning electrode and the collecting electrode the track for passage of the basic material is created, the surface of which from the side of the spinning electrode serves for depositing of the nanofibres created.
  • the nanofibres are prepared from a broad range of polymers and polymer compounds, this either from the solutions using the solvents on the water or non- water basis.
  • Various low-molecular additives may or need not to be added into the solutions as the need may be, which after then regulate some important physical properties of the solution being subject to spinning or which bring new chemical, physical, biological or other properties into the resultant polymer.
  • the nanonfibres may be prepared also from the melts of polymers, but in contrast to the in principle similar processes of creating the polymeric melts, during processing of solutions smaller diameters of fibres are reached thanks to lower viscosity of solutions when compared with melts.
  • electrostatic spinning which leads to the fibres of smaller diameters.
  • the patents US 6 382 526 and US 6 520 425 represent an example of preparation of nanofibres from polymeric solution through a stream of air.
  • the diameters of nanofibres produced by this technology are of 200 to 3000 nanometers.
  • the GB 1 346 231 publishes a device for electrostatic spinning of polymer solutions containing the annular spinning electrode pivoted in a vertical plane by its lower part in polymeric solution and by its upper part between two vertically mounted collecting electrodes.
  • the solution being subject to the spinning is carried out by the surface of a ring of the spinning electrode, at the same time the spinning process proceeds in the upper part of the annular spinning electrode positioned between the collecting electrodes in places, which are as much close as possible to these flat electrodes.
  • the device can only hardly be used in industry as it is complicated, non-productive and the possible layer of fibres, eventually the non-woven textile produced by electrostatic spinning would be of a very irregular thickness and structure.
  • the solution according to EP 1059106 A2 which describes a device for change over of the solution or the polymer melt into the fibrous structure that contains a plane collecting electrode and a spinning electrode between which the electric field is created.
  • the spinning electrode serves for transportation of the solution or of polymer melt (hereinafter referred to as solution only) into the electric field, simultaneously it is essential, that layers of polymer solution of a sufficiently high curvature are created on it on which the charge of electric field is concentrated so that the nanofibres are created from solution layer or from the melt.
  • the nanofibres created are carried to the collecting electrode by action of the Coulomb forces.
  • the spinning electrode is formed by a pivoted disc provided on its perimeter by protrusions, and the disc is dipped by a part of its perimeter into the polymer solution and brings the liquid polymer out into the electric field.
  • the disc surface is wettable by a polymer solution so that this creates a coating on it.
  • each protrusion is gradually covered by a layer polymer solution, which gradually gains a charge of electrode, this means negative) and thanks to a high curvature the nanofibres are created on it.
  • Polymer solution which has not been consumed returns back to the reservoir.
  • the disc is positioned with the rotation axis parallel to the movement direction of the base fabric.
  • the disadvantage of this solution is a small efficiency, because into the electrostatic field only a small quantity of polymer solution being subject to spinning penetrates and only a small portion is changed over into the fabrics. Another disadvantage is irregular thickness of nanofibre layers along the width.
  • the disc cores are of an isolation material to prevent effects superimposing the electric field.
  • the solution should bring an advantage in a more even coating of fibre layer to the base material.
  • the solution is very complicated due to the rotational drive of askew positioned discs and increasing of evenness of applied layer of nanofibres is possible only in the direction of movement of the base material and it cannot be presumed even in the direction of the width of the base material.
  • the cylinder axis is positioned in the plane being parallel with a plane of a base material and perpendicular to the motion direction of the base material.
  • a thin layer is being carried out from which at the simultaneous creation of so called Taylor cones the above mentioned beams of solution are being drawn which after then form on a collecting counter-electrode or on a suitable base layer, a layer of nanofibres in front of it.
  • the mentioned technology works very good for polymeric solutions on a water basis. It does not solve the spinning issue for solutions on a non-water basis. This is connected with a basically different character of water and non-water solutions, which is first of all given by the presence of a strong dipole moment in a small water molecule.
  • the objective of the invention is to create a method and a device which could be industrially usable also for spinning of polymeric solutions in solvents on the non-water basis and which would achieve a high spinning output and at the water and non-water solutions of polymers would further increase the evenness of created layer of nanofibres.
  • the principle of invention is to create a method and a device which could be industrially usable also for spinning of polymeric solutions in solvents on the non-water basis and which would achieve a high spinning output and at the water and non-water solutions of polymers would further increase the evenness of created layer of nanofibres.
  • the objective of the invention has been reached through a method of production of nanofibres from the polymeric solution by electrostatic spinning in electric field according to the invention whose principle consists in that the polymeric solution on surface of the spinning electrode in a place of intersection of surface of the spinning electrode with the plane interlaid by the axis of the spinning electrode and being perpendicular to the plane of the base material, along the whole length of the spinning electrode is subject to the electric field of a maximum and equal intensity, through which an equal and even spinning effect is achieved along the whole length of the spinning electrode, and as a result of it also the even thickness of nanofibre layer deposited on a base material.
  • the polymeric solution is brought into the electric field in quantities of same batches divided one from another that are moving around the circular tracks in the electric field while the mutual position of batches does not change and the batches are arranged in groups of batches, situated along the length of the spinning electrode in a plane running through the axis of the spinning electrode and perpendicular to the plane of base material with respect to the collecting electrode on the equipotent line of the highest intensity of electrical field between the spinning electrode and collecting electrode. Distribution of the polymeric solution into batches and positioning of each batch in the time when it is as close as possible to the collecting electrode in a place with highest intensity of electric filed.
  • the direction of carrying out the polymeric solution batches divided one from another is, with advantage, reverse towards the sense of base material movement through which the greater evenness of created nanofibre layer is achieved.
  • the principle of a device for production of nanofibres from polymeric solution through electrostatic spinning in electrical field consists in that the coating surface of sections of surface of the spinning electrode serving for carrying out the polymeric solution into the electric field is, in the plane running through the axis of the spinning electrode and perpendicular to the plane of the base material, of a shape created by the equipotent line of electric field between the spinning electrode and collecting electrode being of the highest intensity.
  • the spinning electrode contains a system of corrugated lamellas made of a flat electrically conductive material, which are towards the rotation axis mounted tangentially with their corrugation, at the same time in a plane perpendicular to the plane of the base material and running through the rotation axis of the spinning electrode and in the centre of the corrugated lamella they have a shape of equipotent line of the highest intensity of electric field between the spinning electrode and collecting electrode.
  • Such spinning electrode is able to carry out a sufficient quantity of polymeric solution into the most suitable places of electric field between the spinning and collecting electrode, and simultaneously to perform a good spinning also of non-water polymeric solutions.
  • the lamellas are provided with protrusions on their outer side.
  • the spinning electrode contains a system of lamellas arranged radial and longitudinally around the rotation axis of the spinning electrode evenly around its perimeter and provided with tips protruding outwards, while in the position when the tips of the spinning electrode are in the plane perpendicular to the plane of the base material, the peaks of these tips are laying on the equipotent line of the highest intensity of electric field between the spinning and collecting electrode.
  • the lamellas are made of a thin electrically conductive material together with the tips and their peaks. This execution is a simple one and does not increase too much the price of the spinning electrode.
  • the tip peaks are bow or tip shaped.
  • the lamellas are made of a flat electrically conductive material and in the outward direction are equipped with tips of a cuboid shape finished with formed peaks.
  • these tips are cylindrical and they are finished with formed peaks.
  • the formed peaks are made of a bevelled surface oriented in the rotation direction of the spinning electrode.
  • the formed peaks are made of bevelled surface oriented in the rotation direction of the spinning electrode, while in the bevelled surface there is created a recess serving for measuring of always same quantity of the taken polymeric solution and for exposure of a batch of polymeric solution to action of electric field between the spinning and collecting electrode.
  • the formed peaks are created by a little seat which with advantage contains the upper deflected surface oriented in the direction of lamella length and towards the rotation direction of the spinning electrode oriented front deflected surface and the rear deflected surface and it enables an ideal exposure of the polymeric solution batch being on the little seat to action of electric field which acts evenly to the batch from all sides.
  • At least two side by side laying spinning electrodes are arranged on one axis.
  • the spinning electrodes are arranged at least two one after another towards the movement direction of the base material.
  • the spinning electrodes are arranged at least two side by side on one axis and at least in two rows one after another, while the spinning electrodes of the following row are situated in place of gaps between the spinning electrodes of the previous row.
  • the rows of the spinning electrodes are positioned perpendicular to the movement direction of the base material, or they are positioned askew to the movement direction of the base material.
  • FIG. 1 illustrates a cross section of the device with lamellar spinning electrode with lamellas provided with tips with formed peaks
  • the Fig. 2 shows a longitudinal section of the device with the spinning electrode with filled coating surface
  • the Fig. 3a and 3b show a view to the lamellar spinning electrode with flat lamellas
  • the Fig. 4a and 4b a view to the wave lamellar spinning electrode
  • the Fig. 5a a view to the lamellar spinning electrode with lamellas equipped with cylindrical tips with formed peaks
  • 5b a view to lamella with tips arranged in a mutual interval
  • the Fig. 1 illustrates a cross section of the device with lamellar spinning electrode with lamellas provided with tips with formed peaks
  • the Fig. 2 shows a longitudinal section of the device with the spinning electrode with filled coating surface
  • the Fig. 3a and 3b show a view to the lamellar spinning electrode with flat lamellas
  • the Fig. 7a a detail of formed peaks of a flat lamella of the lamellar spinning electrode
  • the Fig. 7b the peaks of tips of the lamellar spinning electrode with a simple bevelled surface modified into a shape of dimple
  • the Fig. 7c the peaks of tips of the lamellar spinning electrode with a simple bevelled surface modified into a shape of dimple
  • the Fig. 7d the peaks of tips of the lamellar spinning electrode with a little seat
  • the Fig. 8a a serial arrangement of the spinning electrodes
  • the Fig. 8b a parallel arrangement of the spinning electrodes
  • a device for production of nanofibres from the polymeric solution through electrostatic spinning illustrated in the Fig. 1, 3 to 7 contains the spinning electrode i created by lamellas H arranged radial and longitudinally around the axis 12, which is by a known not illustrated manner pivoted in the body of the equipment.
  • the individual lamellas ⁇ of the spinning electrode ⁇ or the whole spinning electrode ⁇ are in a known not illustrated manner connected with a not illustrated source of a high voltage or grounded.
  • the lamellas H are spread along the whole length of the spinning electrode _ ⁇ and they are evenly distributed around its perimeter.
  • the axis 12 of the spinning electrode is created by a shaft 121 , which is by a known not illustrated manner coupled with a drive ensuring its rotation movement.
  • Lamellas H in the lower section of the spinning electrode i are dipped in the polymeric solution 3.
  • Each lamella contains a lot of tips 111, on the ends of which there are the formed peaks 1111 created, which are the carrying surfaces for the drips 3J. of the polymeric solution 3, as illustrated in Fig. 1.
  • the collecting electrode 4 connected in a known not illustrated manner to the source of high voltage of an opposite polarity than the spinning electrode i or the grounded one.
  • the axis 12 of the spinning electrode is mounted parallel with the collecting electrode 4, respectively with a plane of the collecting electrode 4.
  • the guidance contains two pairs of rollers - the feed rollers 61 and the delivery rollers 62.
  • the base material may be created by an infinite band mounted on a pair of rollers out of which at least one is driven, while the nanofibre layer is picked up from the infinite band by a known manner and is deposited into the package.
  • the movement direction of the base material 5 is usually concurrent with the rotation direction of the spinning electrode JL
  • the formed peaks 1111 are created by small surfaces formed for optimalization of the shape of drip 31 of polymeric solution 3 on the formed peak in electric field after carrying out the polymeric solution from the reservoir by the lamella 11.
  • Each such drip 3J. represents a batch of polymeric solution 3 brought into the electric field for spinning.
  • the Fig. 2 shows an alternative of execution of a device for production of nanofibres from water polymeric solution through electrostatic spinning according to the invention.
  • the cylindrical body creating the spinning electrode 1 is formed in a plane running through the axis 12 of rotation of the spinning electrode 1 and perpendicular to the plane of the base material 5 into the shape of equipotent line of electric field between the spinning electrode 1 and the collecting electrode 3 of the highest intensity for the selected potential of electric field.
  • the coating surface of the spinning electrode 1 is filled and is not created by lamellas arranged along the length of the spinning electrode 1, as it is at the above described executions.
  • the outer surface e.g. by means of the radial protrusions in the form of collars or tips, protrusions in the shape of spiral or axial protrusions like at the WO 2005/024101 Al
  • the spinning electrode may be created of system of wheels arranged coaxially side by side on a common shaft, while the coating surface of such system lies in a plane running through an axis of the spinning electrode and perpendicular to the plane of base material created by the equipotent line of electric field between the spinning and collecting electrode of the highest intensity for the selected potential of electric field.
  • the wheels may be arranged closely side by side or with a certain spacing and they may be provided with protrusions of various shapes on their perimeter.
  • the spinning electrode 1 contains the shaft 12, on which the faces 122 are attached and in them the flat oblong lamellas JM are mounted in radial manner, on which are formed outwards protruding flat tips V ⁇ finished with formed peaks 1111. which are shaped into the form of bow.
  • the tips 111 of individual lamellas ⁇ have a different length, while their coating curve is an equipotent line of electric field made between the spinning electrode ⁇ _ and the collecting electrode 4 in a plane passing through an axis 12 of the spinning electrode and perpendicular to the plane of base material 5.
  • FIG. 4a Another example execution of the spinning electrode i for spinning of polymers from water as well as non-water solutions is shown in the Fig. 4a in a view against the electrode axis, and the Fig. 4b shows arrangement of lamellas with respect to the shaft in axonometric view.
  • the lamellas Ii are created by a corrugated flat electrically conductive material and they are with their ends mounted in the faces 122 attached to the shaft 121. at the same time with respect to the shaft 12J.
  • the lamellas ⁇ are mounted tangentially with their corrugation.
  • a thin surface of lamella serpentine 11_ is directed, which in the radial direction in a plane perpendicular to plane of the base material and passing through a centre of the wavy lamella ⁇ is shaped into the form of equipotent line of the highest intensity for the selected potential of electric field created between the spinning electrode 1 and the collecting electrode 4.
  • the individual lamellas ⁇ _ are provided with protrusions on their outer side. The example of execution according to Fig.
  • 5a shows the spinning electrode i for spinning of polymers from water as well as non water polymeric solutions _3, which contains on the shaft 121 attached faces 122, between which are in radial manner mounted the lamellas H provided with outwards aiming tips 111, which are finished with formed peaks 1111.
  • the coating curve of the peaks 1111 of lamella tips represents an equipotent line of the highest intensity of electric field created between the spinning electrode 1 and the collecting electrode 4 in a position, when the tips Ul of the spinning electrode are in a plane perpendicular to the plane of the base material 5.
  • the tips IH are of a cylindrical shape, they are arranged closely side by side a their formed peaks 1111 , illustrated in a detail view in Fig. 7c contain a bevelled surface 1111a, in which there is a recess 1111b, which in an advantageous case is of a ball or cone shape.
  • the formed peak IH of lamella of the spinning electrode is in other execution created by a bevelled surface 1111a only as shown in the Fig. 7b, or by a little seat 1111c, illustrated in Fig. 7d.
  • the little seat contains the upper deflected surface Sl oriented in the direction of length of lamella H and the front deflected surface S2 oriented with respect to the rotation direction of the spinning electrode forwards and the rear deflected surface S3 oriented with respect to the rotation direction of the spinning electrode backwards.
  • the front and the rear surfaces of the little seats 1111c may be created by a flat bevelled surfaces.
  • the upper deflected surface of the little seat 1111c there may be created a recess or a dimple.
  • the Fig. 5b shows an example execution of lamella of the spinning electrode according to Fig. 5a, at which the tips 111 are on the lamella H arranged with a certain spacing.
  • the formed peaks 1111 contain the bevelled surface 1111a, in which the recess 1111b is provided.
  • the coating curve of the tip peaks 1111 of lamella represents an equipotent line of electric field created between the spinning electrode 1 and the collecting electrode 4.
  • the spinning electrode according to Fig. 6 contains the flat lamellas H of a certain thickness which are similarly as at the previous execution mounted on a shaft and in the direction outwards they are provided with protrusions of a cuboid shape arranged separately one from another and finished at their ends with formed peaks 1111 that are created by a bevelled surface 1111a.
  • the formed peaks 1111 of lamellas may be created also by another, especially by that above mentioned manner, i.e. for example by a recess 1111b or little seats 1111c.
  • the spinning electrodes 1 may, for a purpose to reach a greater width possibly a greater evenness and/or greater thickness of the produced nanofibres layer 33 , be arranged in a various manners, as it is shown in Fig. 8a to 8d.
  • Fig. 8a there are in one axis 12 in a specified spacing one from another positioned at least two spinning electrodes 1, in the illustrated example of execution there are three spinning electrodes 1
  • the distance between the spinning electrodes 1 has been chosen so that the layer 33 of nanofibres is created on the base material 5 even between the electrodes.
  • Fig. 8b there are arranged three electrodes 1 in three rows 1210. 1220. 1230 one after another in the direction of movement of the base material 5.
  • This execution has been designed to reach a greater thickness of the layer 33 and it must contain at least two spinning electrodes 1 in two rows one after another.
  • the spinning electrodes 1 are arranged at least two side by side on one axis 12_and at least in two rows one after another, while the spinning electrodes 1 of the second row 1220 are situated in places of gaps between the spinning electrodes 1 of the first row 1210.
  • the rows 1210, 1220, 1230 and 1240 of the spinning electrodes 1 are in execution according to Fig. 8c positioned perpendicularly to the direction of movement of the base material 5.
  • the rows 1210, 1220, 1230 and 1240 of the spinning electrodes 1 are positioned askew to the direction of movement of the base material 5.
  • the polymeric solution 3 is in a form of defined drips carried out into the electric field pole on the tip peaks Hi of special lamellas 1I 1 , which, in arrangement radial and longitudinal along the axis 12 of rotation, rotate on a common axis.
  • the height of tips Hl ensures that the peaks 1111 of these tips are when passing the plane perpendicular to the plane of the base material 5 and running through the axis 12 of rotation of the spinning electrode 1 in the equipotent lines of electric field.
  • a small surface on peaks of the tips Hl being roughly around 1 mm 2 , ensures a local increase of electric field in the place of drips, which provides optimum conditions for starting the spinning process.
  • the peaks 1111 of the tips Hi after then may have various finishes , which more or less optimise the shape of the drips.
  • it may be a level surface 1111a or a recess 1111b, and in more complex variant e.g. a little seat 1111c, the usage of which is very advantageous.
  • the little seat 1111c ensures that the drip will be exposed to electrical field in a symmetric manner and simultaneously the stored polymeric solution 3 will better wash the peaks from remnants of polymeric solution 3, which has already passed the process.
  • the polymeric solution 3 (optimally a small portion of its volume) gets into an intensive electrical field.
  • the polymeric solution which is created mostly or totally by molecules non-polar will assume a different attitude towards the external electric field than the polymeric solution containing a quantity of polar molecules. It is known that the dipole similarly to the magnetic needle in magnetic field assumes towards the external electric field a clear attitude, namely so that the vector of dipole is parallel with vector of electric field. The molecules, at which the chaotic movement prevailed before, are enforced to a more consistent internal arrangement within the solution. Hence, the water polymeric solutions are capable of internal layering to polarised layers, which finally causes that there is an intensive electric field as well as the whole surface of the liquid.
  • the peaks 1111 of lamella tips in the form of small spots ensure for the drip, which gets stuck on them that it gets into the electric field of a such intensity, which is especially in places of contact of the drip with edge of lamella tip HI (so called triple point - contact spot of three dielectric different media), and consequently it initiates creation of Taylor cones, drawing of the beam of polymeric solution 3 against the collecting electrode 4.
  • the Taylor cones are a general effect, they are a result of forces to which the polymeric solution is subjected to and their creation occurs once the external force (here the coulomb one) whose vector is perpendicular to the tangential plane to the liquid surface in place of action; it begins to prevail over the forces developed by the inner consistency of liquid molecules and forces of surface tension.
  • the quantity of the polymeric solution 3 being subject to spinning thus the total performance may be affected by dimension of the spinning electrode 1.
  • the dimension of the spinning electrode does not affect the performance directly proportional, this even in such a manner that from a certain length of the spinning electrode 3 it starts to be obviously disadvantageous to continue in increasing the length as the performance is then for length unit of the spinning electrode substantially lower with simultaneous increase of unevenness. This is given by the common physical laws accompanying the problems of electric field.
  • the solution arises in a form of various combinations of a larger quantity of ..smaller" spinning electrodes i, when the individual spinning electrodes 1 are in the parallel or serial arrangement or in combination of both and simultaneously the main axis 12 of the spinning electrodes 1 need not to be perpendicular to the direction of movement of the base material 5 in the continual production system.
  • the spinning electrodes may be towards one another in a parallel arrangement shifted by a half of its length, which further contributes to evenness of the applied nanofibre layer 33.
  • the final arrangement is always given by a respective requirement for performance of the machine (width and speed).
  • Another modification is represented by a rotation of the spinning electrode i with respect to the movement of the base material 5 during the continual process. Unevenness in the form of diagonal differences in the applied quantity of the nanofibre layer 33 on the shifting base material 5 , at certain polymeric solutions 3 , may occur due to the fact that the process is being started gradually and separately from each lamella 11.
  • the effective compensation is the speed and rotation direction of the spinning electrode 1.. In case of a speed it is optimum if the peripheral speed of the rotating spinning electrode i is fifteen times to twenty times greater than the speed of base material 5 movement. Next to this, important is the sense of rotation of the spinning electrode X with respect to the direction of movement of the base material 5. The reverse - retrograde rotation of the spinning electrode towards the movement of the base material 5 brings more even results, while the rotation speed need not in such a multiple exceed the speed of movement of the base material 5 as in the case of rotation being concurrent with the movement.
  • the electric field is much more better definable and controllable than in a case when the voltage was applied only to one of the electrodes, and as a rule it was the spinning electrode, while to the second electrode (the collecting one) the zero potential was positioned.
  • the zero potential especially on the collecting electrode, brings a number of disadvantages arising out of the fact that in the vicinity of the spinning area, i.e. the electrodes, another sections of the device are installed, which are also on the zero potential and may in a non-definable manner modify an electric field and to carry away the carried out fibres into the undesirable places.
  • the current circuit may be closed even in spite of the otherwise considerable insulators, like the plastic parts of the device, etc. This is removed by the opposite potential on the collecting electrode, through which the electrode is ,,made visible" for the material subject to spinning. Much more definable impact of nanofibres to the base material 5 creates the final result of this change.
  • the spinning lamellar electrode according to Fig. 3 rotates in the reservoir of polyamide solution PA 612 (cone. 20 % wt., Mr 2800 g/mol) in an acid.
  • Immersion of the lamella is such that only spots of tips are dipped.
  • the electrode rotates in a retrograde manner towards the movement of the non-conducting spunbond base textile.
  • the method and the device as per the invention are applicable for preparation of layers of nanofibres, especially from polymers soluble in solvents on a non-water basis having the diameter of nanofibres of 100 to 500 nanometers, nevertheless also for spinning of polymers from water solutions.
  • These layers may be used for filtration as the battery separators, to create special composites, for production of protective clothing, in medicine and other areas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
EP06753162A 2005-06-07 2006-06-01 A method and device for production of nanofibres from the polymeric solution through electrostatic spinning Withdrawn EP1910591A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ20050360A CZ299537B6 (cs) 2005-06-07 2005-06-07 Zpusob a zarízení k výrobe nanovláken z polymerního roztoku elektrostatickým zvláknováním
PCT/CZ2006/000037 WO2006131081A1 (en) 2005-06-07 2006-06-01 A method and device for production of nanofibres from the polymeric solution through electrostatic spinning

Publications (1)

Publication Number Publication Date
EP1910591A1 true EP1910591A1 (en) 2008-04-16

Family

ID=36933472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06753162A Withdrawn EP1910591A1 (en) 2005-06-07 2006-06-01 A method and device for production of nanofibres from the polymeric solution through electrostatic spinning

Country Status (11)

Country Link
US (1) US20080307766A1 (cs)
EP (1) EP1910591A1 (cs)
JP (1) JP2008542571A (cs)
KR (1) KR20080017452A (cs)
CN (1) CN101189368A (cs)
AU (1) AU2006255403A1 (cs)
CA (1) CA2608230A1 (cs)
CZ (1) CZ299537B6 (cs)
EA (1) EA200800981A1 (cs)
TW (1) TW200714754A (cs)
WO (1) WO2006131081A1 (cs)

Families Citing this family (114)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ200727A3 (cs) * 2007-01-11 2008-07-23 Elmarco, S. R. O. Zpusob výroby vrstvené zvukove pohltivé netkané textilie
JP5217190B2 (ja) * 2007-03-07 2013-06-19 東洋紡株式会社 繊維集合体の製造方法
CZ2007179A3 (cs) * 2007-03-08 2008-09-17 Elmarco S. R. O. Lineární vlákenný útvar obsahující polymerní nanovlákna, zpusob výroby a zarízení k výrobe takovéhoútvaru
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
CZ2007727A3 (cs) * 2007-10-18 2009-04-29 Nanopeutics S. R. O. Sberná elektroda zarízení pro výrobu nanovláken elektrostatickým zvláknováním polymerních matric, a zarízení obsahující tuto sbernou elektrodu
EP2222385B1 (en) 2007-11-20 2016-06-22 Elmarco s.r.o. Filtration medias, fine fibers under 100 nanofibers, and methods
US7967588B2 (en) 2007-11-20 2011-06-28 Clarcor Inc. Fine fiber electro-spinning equipment, filter media systems and methods
US7815427B2 (en) 2007-11-20 2010-10-19 Clarcor, Inc. Apparatus and method for reducing solvent loss for electro-spinning of fine fibers
US20090156740A1 (en) 2007-12-15 2009-06-18 Annette Lechtenboehmer Tire with component containing polymeric nanofiber
CZ2008226A3 (cs) * 2008-04-15 2009-10-29 Elmarco S.R.O. Zpusob výroby nanovláken z fluorovaných kopolymeru a terpolymeru elektrostatickým zvláknováním, nanovlákna a textilie
US8785881B2 (en) 2008-05-06 2014-07-22 Massachusetts Institute Of Technology Method and apparatus for a porous electrospray emitter
US10125052B2 (en) 2008-05-06 2018-11-13 Massachusetts Institute Of Technology Method of fabricating electrically conductive aerogels
EP2294252B1 (en) * 2008-06-24 2013-08-14 Stellenbosch University Method and apparatus for the production of fine fibres
JP4633828B2 (ja) * 2008-07-01 2011-02-16 フォスター電機株式会社 電気音響変換器用振動系部品の製造方法およびこの方法で製造した電気音響変換器用振動系部品
GB2462112B (en) * 2008-07-24 2012-11-07 Stfc Science & Technology An apparatus and method for producing fibres
US8747093B2 (en) 2008-10-17 2014-06-10 Deakin University Electrostatic spinning assembly
CZ2008763A3 (cs) 2008-12-03 2010-06-16 Elmarco S.R.O. Zpusob výroby nanovláken a/nebo nanovlákenných struktur fosfo-olivínu, nanovlákna fosfo-olivínu a nanovlákenná struktura tvorená nanovlákny fosfo-olivínu
CZ2009152A3 (cs) 2009-03-10 2010-11-10 Elmarco S.R.O. Vrstvený filtracní materiál a zarízení pro cištení plynného média
US9750829B2 (en) 2009-03-19 2017-09-05 Emd Millipore Corporation Removal of microorganisms from fluid samples using nanofiber filtration media
CZ305037B6 (cs) * 2009-04-16 2015-04-08 Spur A.S. Způsob výroby nanovláken a zvlákňovací členy k provádění tohoto způsobu
EP2422001A1 (de) 2009-04-21 2012-02-29 Basf Se Wasserbasierte herstellung von metalloxid- und metall-nanofasern
TWI357449B (en) * 2009-06-19 2012-02-01 Taiwan Textile Res Inst Roller type electrostatic spinning apparatus
CZ308360B6 (cs) * 2009-08-06 2020-06-24 Elmarco S.R.O. Rotační zvlákňovací elektroda
CA2779661A1 (en) 2009-11-04 2011-05-12 Basf Se Process for producing nanofibers
CZ305039B6 (cs) 2009-11-27 2015-04-08 Technická univerzita v Liberci Lineární vlákenný útvar obsahující nanovlákna a způsob a zařízení pro jeho výrobu
US20110210081A1 (en) 2010-02-26 2011-09-01 Clarcor Inc. Fine fiber liquid particulate filter media
CN101775706B (zh) * 2010-03-03 2011-05-04 天津工业大学 一种微纳米纤维无纺布的生产方法及装置
TWI406982B (zh) 2010-06-30 2013-09-01 Taiwan Textile Res Inst 滾筒式電紡設備
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
JP2013541408A (ja) 2010-08-10 2013-11-14 イー・エム・デイー・ミリポア・コーポレイシヨン レトロウイルス除去方法
CZ2010648A3 (cs) 2010-08-30 2012-03-07 Elmarco S.R.O. Zarízení pro výrobu nanovláken
CZ303244B6 (cs) 2011-01-17 2012-06-13 Elmarco S.R.O. Nosic pro oromukosální, zejména pro sublingvální aplikaci fyziologicky aktivních látek
CN102140701B (zh) * 2011-03-21 2013-05-08 李从举 制备纳米纤维毡的多孔喷头静电纺丝装置及其制备方法
SG10201605328WA (en) 2011-04-01 2016-08-30 Emd Millipore Corp Nanofiber containing composite structures
CZ306438B6 (cs) 2011-04-12 2017-01-25 Elmarco S.R.O. Způsob a zařízení pro nanášení kapalné polymerní matrice na zvlákňovací struny
US10308377B2 (en) 2011-05-03 2019-06-04 Massachusetts Institute Of Technology Propellant tank and loading for electrospray thruster
CN102191573B (zh) * 2011-05-19 2012-11-14 厦门大学 一种量产纳米纤维电纺装置
CN104114349B (zh) * 2011-11-17 2017-02-22 哈佛学院院长等 用于制造聚合物纤维的系统、装置和方法
CN102517654B (zh) * 2011-12-31 2014-07-30 福建农林大学 悬臂式纳米纤维静电纺丝系统
CN103215658A (zh) * 2012-01-21 2013-07-24 南京理工大学 一种新型的静电电纺方法
EP3292905A1 (en) 2012-01-27 2018-03-14 Zeus Industrial Products, Inc. Electrospun porous media
CN102704194A (zh) * 2012-06-25 2012-10-03 天津工业大学 一种帘式实心针电纺纳米纤维非织造布生产装置
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
CN102828259B (zh) * 2012-09-18 2015-03-18 天津工业大学 一种锯齿式无针头静电纺丝装置
ES2955377T3 (es) 2012-12-10 2023-11-30 Emd Millipore Corp Esteras de nanofibras ultraporosas y usos de las mismas
WO2014127099A2 (en) 2013-02-13 2014-08-21 President And Fellows Of Harvard College Immersed rotary jet spinning devices (irjs) and uses thereof
CN103114347B (zh) * 2013-03-08 2015-03-11 厦门大学 连续的纤维制造装置
WO2014152796A2 (en) 2013-03-14 2014-09-25 Hemcon Medical Technologies, Inc. Biocompatible and bioabsorbable derivatized chitosan compositions
CN103215660B (zh) * 2013-03-28 2015-11-25 昆山同日精密测试设备有限公司 静电纺丝纳米纤维设备
CN103215661B (zh) * 2013-04-07 2016-04-13 高小歌 一种静电纺丝装置及纺丝方法
US9358556B2 (en) 2013-05-28 2016-06-07 Massachusetts Institute Of Technology Electrically-driven fluid flow and related systems and methods, including electrospinning and electrospraying systems and methods
JP2015081390A (ja) * 2013-10-22 2015-04-27 積水化学工業株式会社 電界紡糸装置
CN103590121B (zh) * 2013-11-22 2015-10-28 北京化工大学 一种线性射流无喷头式静电纺丝装置
JP2015132028A (ja) * 2014-01-15 2015-07-23 積水化学工業株式会社 電界紡糸装置
WO2015124249A1 (en) 2014-02-20 2015-08-27 Merck Patent Gmbh Preparation of stable catalyst solutions and methods of using such catalyst solutions in fiber formation
JP6205674B2 (ja) * 2014-04-23 2017-10-04 株式会社Roki 微細繊維の製造方法
KR101591681B1 (ko) * 2014-05-27 2016-02-05 전북대학교산학협력단 와이어 타입의 전기방사장치
KR101591683B1 (ko) * 2014-05-27 2016-02-05 전북대학교산학협력단 벨트타입의 전기방사장치
SG11201608399QA (en) 2014-06-26 2016-11-29 Emd Millipore Corp Filter structure with enhanced dirt holding capacity
CN104451910B (zh) * 2014-11-10 2017-06-06 厦门大学 射流定点诱发的电纺装置
KR102206963B1 (ko) 2015-04-17 2021-01-25 이엠디 밀리포어 코포레이션 접선방향 유동 여과 모드에서 작동되는 나노섬유 한외여과막을 사용하여 샘플에서 목적하는 생물학적 물질을 정제하는 방법
CN104894661A (zh) * 2015-07-06 2015-09-09 苏州大学 一种静电纺丝装置
GB201513328D0 (en) 2015-07-29 2015-09-09 Univ Surrey An Electrospinning Device and Configuration Method
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
CN105821494B (zh) * 2016-01-07 2018-06-05 上海同芮投资管理有限公司 一种制备纳米纤维的细线型静电纺丝装置
CN106119992A (zh) * 2016-08-11 2016-11-16 广东工业大学 圆柱面三角形间隔阵列的静电纺丝喷头及静电纺丝方法
CN106167921A (zh) * 2016-08-11 2016-11-30 广东工业大学 圆柱面四边形对称阵列的静电纺丝喷头及静电纺丝方法
CN106119988A (zh) * 2016-08-11 2016-11-16 广东工业大学 圆柱面矩形五喷嘴阵列的静电纺丝喷头及静电纺丝方法
CN106119989A (zh) * 2016-08-11 2016-11-16 广东工业大学 圆柱面菱形间隔阵列的静电纺丝喷头及静电纺丝方法
CN106167920A (zh) * 2016-08-11 2016-11-30 广东工业大学 圆柱面三角形轴对称阵列的静电纺丝喷头及静电纺丝方法
CN106119982A (zh) * 2016-08-11 2016-11-16 广东工业大学 一种圆柱面六边形阵列的静电纺丝喷头及静电纺丝方法
CN106119991A (zh) * 2016-08-11 2016-11-16 广东工业大学 一种圆柱面三角波阵列的静电纺丝喷头及静电纺丝方法
CN106283218B (zh) * 2016-10-21 2018-05-15 上海工程技术大学 用于静电纺丝的螺旋线式接收器及制备纳米纤维的方法
CN106591968B (zh) * 2016-12-21 2019-05-07 暨南大学 应用于静电纺丝的多方向旋转收丝器及其应用装置与方法
CN106669384B (zh) * 2016-12-30 2020-05-26 东华大学 可释放负离子的复合防雾霾窗纱及其静电纺丝装置和方法
EP3366362B1 (en) 2017-02-23 2021-05-05 Sefar AG A protective vent and method for producing a protective vent
WO2018162950A1 (en) 2017-03-07 2018-09-13 The Stellenbosch Nanofiber Company (Pty) Ltd Apparatus and method for the production of fine fibers
US10141855B2 (en) 2017-04-12 2018-11-27 Accion Systems, Inc. System and method for power conversion
WO2019016605A1 (en) 2017-07-21 2019-01-24 Merck Millipore Ltd MEMBRANES OF NONWOVEN FIBERS
KR101994776B1 (ko) * 2017-08-22 2019-09-30 주식회사 대창 나노섬유를 포함하는 필터 및 이를 제조하는 방법과 장치
WO2019203483A1 (ko) * 2018-04-19 2019-10-24 박종수 하전용액 제어구조가 개선된 극세섬유 제조용 전기방사장치 및 이를 위한 용액이송펌프
CN108385174A (zh) * 2018-04-24 2018-08-10 东华大学 一种分离控制电场多孔球形静电纺丝喷头及其纺丝方法
MX2020013310A (es) 2018-06-08 2021-05-27 Ascend Performance Mat Operations Llc Productos no tejidos de nanofibras afinables.
CN110273190B (zh) * 2018-07-19 2021-10-08 武汉纺织大学 基于环形均布多叶片的开放式电纺喷嘴
CN109023557B (zh) * 2018-09-14 2020-11-06 浙江农林大学暨阳学院 一种静电纺丝装置
CN112714809A (zh) * 2018-09-18 2021-04-27 富士胶片株式会社 无纺布制造方法及设备
CN111020717B (zh) * 2018-10-10 2023-04-11 博裕纤维科技（苏州）有限公司 用于静电纺纳米纤维的喷丝头和喷丝单元
EP3877574A1 (en) 2018-11-01 2021-09-15 EMD Millipore Corporation Efficient production of nanofiber structures
CN109402747A (zh) * 2018-12-29 2019-03-01 李瑞锋 一种网状双筒圆柱形静电纺丝装置及方法
CN109402746A (zh) * 2018-12-29 2019-03-01 李瑞锋 一种网状双筒圆柱形静电纺丝装置的喷头
CN113302348B (zh) 2019-01-14 2023-11-14 哈佛学院院长等 聚焦旋转喷射纺丝装置及其使用方法
CN113677514A (zh) 2019-04-12 2021-11-19 奥升德功能材料运营有限公司 具有纳米纤维层的非织造多层结构
CN110230107B (zh) * 2019-04-23 2024-06-14 上海云同新材料科技有限公司 无针静电纺丝头及静电纺丝发生装置
CN110129904B (zh) * 2019-05-05 2020-07-14 嘉兴富瑞邦新材料科技有限公司 一种静电旋喷纺丝装置
CN110453297B (zh) * 2019-05-05 2020-07-14 嘉兴富瑞邦新材料科技有限公司 一种静电旋喷用装置
CN110257926B (zh) * 2019-05-05 2020-07-14 嘉兴富瑞邦新材料科技有限公司 一种静电旋转喷射纺丝装置
WO2020236961A1 (en) 2019-05-21 2020-11-26 Accion Systems, Inc. Apparatus for electrospray emission
JPWO2021054056A1 (cs) * 2019-09-17 2021-03-25
ES2944107T3 (es) 2019-10-24 2023-06-19 Saati Spa Un método para preparar un medio filtrante compuesto y el medio filtrante compuesto obtenido con este método
US20210254248A1 (en) 2020-02-18 2021-08-19 Emd Millipore Corporation Sterilizable porous filtration media containing nanofiber
WO2022046721A2 (en) 2020-08-24 2022-03-03 Accion Systems, Inc. Propellant apparatus
CN112430858B (zh) * 2020-11-11 2022-06-24 上海胜启纳米科技中心 一种静电纺丝设备
CN114657649B (zh) * 2020-12-24 2025-07-22 长胜纺织科技发展(上海)有限公司 一种静电纺丝装置
CN115747976A (zh) * 2021-02-23 2023-03-07 青岛中科凯尔科技有限公司 一种通电可调的高分子纳米纤维生产装置
CN112962150B (zh) * 2021-03-11 2024-09-20 苏州大学 一种可批量制备核壳结构纳米纤维的静电纺丝装置
EP4092184A1 (en) 2021-05-18 2022-11-23 Sefar AG Method for producing a carrier layer with a hydrophilic polymeric nanocoating
CN113235173B (zh) * 2021-06-24 2022-11-18 青岛大学 一种静电纺丝设备
KR102559895B1 (ko) * 2021-06-24 2023-07-27 충남대학교산학협력단 미립자를 포함하는 나노 섬유의 제조방법
CN113930851A (zh) * 2021-09-22 2022-01-14 南通顶誉纺织机械科技有限公司 一种旋转带液式静电纺丝装置及纺丝方法
EP4177050A1 (en) 2021-11-04 2023-05-10 Sefar AG Polymeric fabric
EP4379127A1 (en) 2022-11-29 2024-06-05 Sefar AG Method of producing an object having a fluorinated polymer coating
DE102023108102A1 (de) 2023-03-30 2024-10-02 Greenerity Gmbh Brennstoffzellenkathode, verfahren zu deren herstellung und brennstoffzelle
WO2025137737A2 (en) 2023-12-19 2025-06-26 The Stellenbosch Nanofiber Company (Pty) Ltd Method and apparatus for the production of fine fibers

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1346231A (en) * 1970-06-29 1974-02-06 Bayer Ag Filter made of electrostatically spun fibres
US3994258A (en) * 1973-06-01 1976-11-30 Bayer Aktiengesellschaft Apparatus for the production of filters by electrostatic fiber spinning
ES2065346T3 (es) * 1988-05-27 1995-02-16 Corovin Gmbh Dispositivo para la fabricacion de una tela no tejida a base de filamentos continuos y tela no tejida multicapa prefabricada a base de filamentos continuos.
US5968557A (en) * 1995-11-28 1999-10-19 Karl Fischer Industrieanlagen Gmbh Apparatus for manufacturing spun-bonded webs
DE19630523C1 (de) * 1996-07-29 1998-03-12 Freudenberg Carl Fa Spinnvliesstoff und Vorrichtung zu dessen Herstellung
US5853628A (en) * 1996-09-12 1998-12-29 Kimberly-Clark Worldwide, Inc. Method of forming nonwoven fabric having a pore size gradient
IL119809A (en) * 1996-12-11 2001-06-14 Nicast Ltd A device for the production of a complex material for filtration and a method for its application
IL132945A0 (en) * 1999-06-07 2001-03-19 Nicast Ltd Filtering material and device and method of its manufacture
US7105124B2 (en) * 2001-06-19 2006-09-12 Aaf-Mcquay, Inc. Method, apparatus and product for manufacturing nanofiber media
DE10136256B4 (de) * 2001-07-25 2005-03-31 Helsa-Werke Gmbh & Co. Kg Vorrichtung zur Herstellung von Fasern in einem elektrostatischen Spinnverfahren
WO2003039765A1 (en) * 2001-11-02 2003-05-15 Bbi Enterprises, L.P. Electrostatic application of loose fiber to substrates
US20030195611A1 (en) * 2002-04-11 2003-10-16 Greenhalgh Skott E. Covering and method using electrospinning of very small fibers
US6989125B2 (en) * 2002-11-21 2006-01-24 Kimberly-Clark Worldwide, Inc. Process of making a nonwoven web
KR100491228B1 (ko) * 2003-02-24 2005-05-24 김학용 나노섬유로 구성된 연속상 필라멘트의 제조방법
CZ20032421A3 (cs) * 2003-09-08 2004-11-10 Technická univerzita v Liberci Způsob výroby nanovláken z polymerního roztoku elektrostatickým zvlákňováním a zařízení k provádění způsobu
US7134857B2 (en) * 2004-04-08 2006-11-14 Research Triangle Institute Electrospinning of fibers using a rotatable spray head

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006131081A1 *

Also Published As

Publication number Publication date
EA200800981A1 (ru) 2008-08-29
US20080307766A1 (en) 2008-12-18
CZ299537B6 (cs) 2008-08-27
TW200714754A (en) 2007-04-16
CN101189368A (zh) 2008-05-28
WO2006131081A1 (en) 2006-12-14
KR20080017452A (ko) 2008-02-26
AU2006255403A1 (en) 2006-12-14
CZ2005360A3 (cs) 2007-01-10
JP2008542571A (ja) 2008-11-27
CA2608230A1 (en) 2006-12-14

Similar Documents

Publication Publication Date Title
US20080307766A1 (en) Method and Device for Production of Nanofibres From the Polymeric Solution Through Electrostatic Spinning
KR101719377B1 (ko) 정전기 방사 조립체
US8157554B2 (en) Rotary spinning electrode
CA2536595C (en) Method of nanofibres production from a polymer solution using electrostatic spinning and a device for carrying out the method
WO2005042813A1 (en) Electrostatic spinning equipment and method of preparing nano fiber using the same
US20080284050A1 (en) Method and Device for Production of Nanofibres Through Electrostatic Spinning of Solutions or Melts of Polymers
EP2294252B1 (en) Method and apparatus for the production of fine fibres
KR20100031584A (ko) 액체 매트릭스 스피닝 방법, 액체 매트릭스의 정전기 스피닝을 통해 나노섬유들을 제조하는 장치 및 이 장치용 스피닝 전극
US20180223451A1 (en) An electrospinning device and configuration method
JP2006112023A (ja) 繊維集合体の製造方法及び繊維集合体の製造装置
JP6112873B2 (ja) ナノ繊維材料及びマイクロ繊維材料を製造するための複合紡糸ノズル
KR100702864B1 (ko) 전기방사 장치
JP2010106396A (ja) 不織布の製造装置
US11384452B2 (en) Electrospinning device and method
KR101950217B1 (ko) 전기방사 나노섬유 제조장치
JP2010144290A (ja) ナノファイバ製造方法、および製造装置
KR102513889B1 (ko) 전기방사 장치
HK1119210A (en) A method and device for production of nanofibres from the polymeric solution through electrostatic spinning
KR20050041201A (ko) 광폭 나노섬유 제조방법
TWI421384B (zh) 具連續生產功能之靜電紡絲收集裝置及其應用
TWM457736U (zh) 螺桿纖維產生器及靜電螺桿紡絲設備
KR20050041202A (ko) 정전방사장치 및 이를 이용한 나노섬유의 제조방법
KR101562065B1 (ko) 나노섬유 웹 제조장치 및 그 제조방법
CN219099396U (zh) 一种提升定向纺丝效率的装置
CN113235173A (zh) 一种静电纺丝设备

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20071204

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20080513

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20101231