WO2009049563A2 - Device for production of layer of nanofibres through electrostatic spinning of polymer matrices - Google Patents
Device for production of layer of nanofibres through electrostatic spinning of polymer matrices Download PDFInfo
- Publication number
- WO2009049563A2 WO2009049563A2 PCT/CZ2008/000122 CZ2008000122W WO2009049563A2 WO 2009049563 A2 WO2009049563 A2 WO 2009049563A2 CZ 2008000122 W CZ2008000122 W CZ 2008000122W WO 2009049563 A2 WO2009049563 A2 WO 2009049563A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spinning
- electrode
- collecting electrode
- belt
- substrate material
- 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.)
- Ceased
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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
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
Definitions
- the invention relates to the device for production of layer of nanofibres through electrostatic spinning of polymer matrices in electrostatic field of a high intensity induced by difference of potentials between the spinning electrode and the collecting electrode, which comprises endless belt mounted at least on two stretching shafts, out of which at least one is coupled with a drive, while between the spinning electrode and the collecting electrode is in vicinity of the collecting electrode performed the guidance of substrate material is.
- the device for production of layer of nanofibres through electrostatic spinning of polymer matrices comprises the spinning electrode and the collecting electrode, which is usually formed of a rod or metal plate connected to opposite pole of high voltage source than the spinning electrode or is grounded.
- EP 1059106 and US 4.143.196 disclose the device at which the collecting electrode comprises electrically conductive smooth belt, on which the produced layer of nanofibres is deposited, which is subsequently removed from the belt of the collecting electrode and is transported outside the device.
- EP 1059106 and US 4.143.196 disclose the device at which the collecting electrode comprises electrically conductive smooth belt, on which the produced layer of nanofibres is deposited, which is subsequently removed from the belt of the collecting electrode and is transported outside the device.
- the collecting electrode formed of a body of cylindric shape is in contact with substrate material, which through the spinning device is guided basically horizontally.
- the disadvantage of this solution is an increased friction of substrate material against surface of the collecting electrode, when especially at fine substrate materials consisting of little mutually fixed fibres, which are for example fine webs, damage of substrate material occurs or may occur, especially in cases when the device comprises more spinning units, thus also more collecting electrodes and the substrate material must be strongly stretched so that its slacking is prevented.
- the goal of the invention is to reduce or eliminate the disadvantages of the background art.
- the goal of the invention has been reached by the device for production of layer of nanofibres through electrostatic spinning of polymer matrices according to the invention, whose principle consists in that the guidance of substrate material is formed of hold-down means of substrate material, which are performed on endless belt of the collecting electrode.
- the hold-down means of substrate material performed on the endless belt serve to secure a good contact of substrate material with surface of the collecting electrode and an steady speed in motion of substrate material through the spinning space.
- a good contact of substrate material with surface of the collecting electrode is a basic prerequisite for uniform depositing of nanofibres into a layer of nanofibres on the substrate material.
- the hold-down means are formed of openings in the belt of the collecting electrode, and the space behind the belt in direction from the spinning electrode to the collecting electrode is coupled with a source of underpressure.
- the endless belt of the collecting electrode is provided on its outer side with tips, that are able to extend into the substrate material and to exit from it again, thus exactly determine the speed of motion of substrate material, its position and also its stretching between the collecting electrodes of individual one after another arranged spinning units.
- the tips form the hold-down means and on the belt are used either independently or in combination with openings and under pressure behind the belt of the collecting electrode.
- the tips are made of electrically conductive material and their length corresponds to thickness of the substrate material.
- the conductive tips on belt of the collecting electrode create irregularities of electrostatic field between the spinning electrode and the collecting electrode and so contribute to formation of Taylor cones from polymer solution on the spinning electrode, thus also to formation of nanofibres.
- these tips are mounted in body made of electrically nonconducting material and at least in position against the spinning electrode the tips are connected to the high voltage source of opposite polarity than the spinning electrode or grounded. Electrostatic field in this case is induced between the tips and the spinning electrode. The produced nanofibres are carried from the spinning electrode towards the tips of the collecting electrode and they deposit on the substrate material.
- the tips are made of electrically nonconducting material and they are mounted on belt made from electrically conductive material, which is connected to high voltage source of opposite polarity than the spinning electrode or grounded.
- This embodiment is suitable for substrate materials formed of thin webs of electrically conductive material or of material, at which the electric conductivity was increased by some of the known methods. At such thin webs it is sufficient, when the electrostatic field is induced between the spinning electrode and surface of the belt of the collecting electrode, with which the web is in contact.
- Fig. 1 shows the spinning device with the collecting electrode containing the rotatably mounted smooth belt with openings with assigned source of underpressure is assigned
- Fig. 2 another variant of the device at which the endless belt of the collecting electrode is provided with tips.
- Fig. 1 Examples of embodiment Exemplary embodiment of the device for production of layer of nanofibres through electrostatic spinning of polymer matrices in electrostatic field of high intensity according to the invention is represented in Fig. 1.
- Polymer matrix is formed of any electrostatic spinnable form of polymer possibly with various additives or mixture of polymers, that may also be added with various additives, while usually the electrostatic spinnable form is solution or melt.
- the spinning unit which comprises the spinning electrode 2 and against it arranged the collecting electrode 3. Between the spinning electrode 2 and the collecting electrode 3 electrostatic field of high intensity is induced in a known manner.
- the passage for substrate material 4 is created, which is unwound in the known not represented unwinding device and into the spinning chamber 1 it is brought by feeding rollers 51., 52. From the spinning chamber ⁇ the substrate material 4 is taken away by the draw-off rollers 61., 62, behind which it is in a known not represented manner wound in the not represented winding device.
- the spinning electrode 2 may be created in any known manner, while in the represented example of embodiment is represented the rotating spinning electrode formed of rotating cylindric body, whose surface section extends into reservoir of polymer matrix being subjected to spinning.
- the collecting electrode 3 contains the endless belt 3J. made of electrically conductive material, which in the spinning chamber ⁇ _ is mounted on a pair of stretching shafts 32, 33. In the belt 3J. the openings 311 are performed.
- the endless belt 3J. forms between the stretching shafts 32, 33 two sections, the guiding section, which is in contact with the substrate material, and the reversible section. Between the guiding section and reversible section of endless belt 31_ and stretching shafts 32, 33 the underpressure chamber 34 is arranged, whose inner space is coupled with a known not represented source of underpressure, while the underpressure chamber 34 is positioned behind the guiding section of the belt 3J. in direction from the spinning electrode 2 to the collecting electrode 3. Belt 3J.
- the collecting electrode 3 in a known not represented manner is connected to the high voltage source of opposite polarity than the spinning electrode 3 or grounded.
- At least one of the stretching shafts 32, 33 of the collecting electrode is coupled with a not represented drive, which ensures its forced rotation in direction corresponding to the direction of motion of substrate material 4, while the rotation speed is by some of the known methods regulated according to the speed of motion of the substrate material 4.
- the substrate material 4 is guided on a guiding section of endless belt 31.. During the spinning process the substrate material 4 moves through the spinning chamber 1 between the spinning electrode 2 and the collecting electrode 3, while it is in contact with surface of the guiding section of the endless belt 3J[ of the collecting electrode.
- the air or other gas from the space of spinning chamber 1_ is sucked in through the openings 311 in the endless belt 31. by the underpressure chamber 34, thus the substrate material 4 is kept in contact with surface of the guiding section of the endless belt 3J. and during the spinning process the nanofibres are deposited on it. Suction of the air or other gas from the space of the spinning chamber 1 contributes also to depositing of produced nanofibres to the substrate material 4.
- the formed layer 41 of nanofibres is taken away together with the substrate material by means of a pair of the draw-off rollers 61., 62.
- the endless belt 3J. of the collecting electrode is provided with the tips 312 on the outer side.
- Embodiment of the tips 312 and the belt 3J. of the collecting electrode may be various according to the technological conditions of spinning, according to the kind of the polymer matrix subjected to spinning, according to the application of the produced layer of nanofibres, etc.
- the tips 312 are designated especially for improvement of transport of the substrate material 4 formed especially of fine webs of a low linear cohesion at relatively high thickness.
- the tips 312 extend into the substrate material 4 and they penetrate it at least partially and subsequently exit from the substrate material 4 again. By this the tips 312 exactly determine the speed of motion of substrate material 4, its position and stretching of substrate material 4 between the collecting electrodes 3 of individual one after another arranged spinning units.
- the belt 3J. of the collecting electrode 3 is made of electrically conductive material as well as the tips 312. Length of the tips 312 corresponds to thickness of substrate material 4 or it is smaller. The peaks of the tips 312 during passage through the spinning space remain inside the substrate material 4 or they are to be found in area of its surface, on which the nanofibres are deposited. At low concentration of the tips 312 arranged in the belt 3J. the electrostatic field between the spinning electrode 2 and the collecting electrode 3 is induced between the active part of the spinning electrode 2 and against it positioned section of the belt 3J. of the collecting electrode 3, while in the place of the tips 312 electrostatic field is induced between the peak of the tip 312 and the active section of the spinning electrode 2.
- the brought charge is concentrated into a point singular charge, which contributes to producing of nanofibres especially in initial phase of the spinning process.
- the produced nanofibres are deposited on surface of substrate material 4.
- electrostatic field is induced between the active section of the spinning electrode 2 and peaks of the tips 312 to be found in the given moment against this active section of the spinning electrode 2.
- the peaks of tips 312 form the grid of singular charges.
- the produced nanofibres are deposited on surface of the substrate material 4.
- the belt 31_ of the collecting electrode 3 is made of electrically nonconducting material and in it there are mounted the tips
- the tips 312 are identical as at the previous embodiment.
- the tips 312 are connected to high voltage source of opposite polarity than the spinning electrode 2 or grounded. Electrostatic field is induced between the peaks of the tips 312 and the active section of the spinning electrode 2 and the produced nanofibres are deposited on surface of the substrate material 4.
- the collecting electrode 3 formed of the endless belt 3J_ made of electrically nonconducting material with the tips 312 made of electrically conductive material are to the high voltage source connected only those tips, whose peaks are to be found against the spinning electrode 2.
- the stretching shafts 3_1, 32 of the endless belt 3_1 may be mounted outside the spinning chamber ⁇ _. Also the reversible section of the endless belt 3J. may pass outside of the spinning chamber ⁇ .
- the belt 3J. of the collecting electrode 3 is made of electrically conductive material and in it the tips 312 made of electrically nonconducting material are mounted.
- electrostatic field is induced between the active section of the spinning electrode 2 and against it positioned section of the belt 3J. of the collecting electrode, while the tips 312 exert only function of transportation and maintaining of position of the substrate material 4 and they may be longer than the thickness of the substrate material 4.
- All embodiments of the endless belt 3_1 of the collecting electrode 3 equipped with tips 312 may be provided with openings 3_H in the belt 31., while to the rear side of the belt 3J. the underpressure chamber 34 is assigned.
- the openings 311 are performed between the tips 312 and serve to sticking of the substrate material_4 to the belt 31. of the collecting electrode 3. List of referential markings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention relates to the device for production of layer of nanofibres through electrostatic spinning of polymer matrices in electrostatic field of a high intensity induced by difference of potentials between the spinning electrode (2) and the collecting electrode (3), which comprises the endless belt (31) mounted at least on two stretching shafts (31, 32), out of which at least one is coupled with a drive, while between the spinning electrode (2) and the collecting electrode (3) in vicinity of the collecting electrode (3) the guidance of substrate material (4) is performed. The guidance of substrate material (4) is formed of the hold-down means of substrate material (4), which are performed on the endless belt (31) of the collecting electrode (3), and they may be formed of openings (311) in the belt (31) coupled with the source of underpressure or the tips (312) performed on outer side of the belt (31).
Description
Device for production of layer of nanofibres through electrostatic spinning of polymer matrices
Technical field The invention relates to the device for production of layer of nanofibres through electrostatic spinning of polymer matrices in electrostatic field of a high intensity induced by difference of potentials between the spinning electrode and the collecting electrode, which comprises endless belt mounted at least on two stretching shafts, out of which at least one is coupled with a drive, while between the spinning electrode and the collecting electrode is in vicinity of the collecting electrode performed the guidance of substrate material is.
Background art
The device for production of layer of nanofibres through electrostatic spinning of polymer matrices comprises the spinning electrode and the collecting electrode, which is usually formed of a rod or metal plate connected to opposite pole of high voltage source than the spinning electrode or is grounded.
EP 1059106 and US 4.143.196 disclose the device at which the collecting electrode comprises electrically conductive smooth belt, on which the produced layer of nanofibres is deposited, which is subsequently removed from the belt of the collecting electrode and is transported outside the device. In EP
1059106 a section of the belt, on which the layer of nanofibres is deposited, is horizontal, while in US 4.143.196 a section of the belt, on which the layer of nanofibres is deposited, is vertical. This device does not solve depositing of layer of nanofibres on the substrate material, neither the transport of substrate material in the space between the spinning electrode and the collecting electrode. The belt collecting electrodes according to the background art are used for direct depositing of nanofibres into a layer of nanofibres and for transport of this layer of nanofibres outside the space between the spinning electrode and the collecting electrode.
According to CZ PUV 2007-18612 the collecting electrode formed of a body of cylindric shape is in contact with substrate material, which through the spinning device is guided basically horizontally. Nevertheless the disadvantage of this solution is an increased friction of substrate material against surface of the collecting electrode, when especially at fine substrate materials consisting of little mutually fixed fibres, which are for example fine webs, damage of substrate material occurs or may occur, especially in cases when the device comprises more spinning units, thus also more collecting electrodes and the substrate material must be strongly stretched so that its slacking is prevented. The goal of the invention is to reduce or eliminate the disadvantages of the background art.
Principle of the invention
The goal of the invention has been reached by the device for production of layer of nanofibres through electrostatic spinning of polymer matrices according to the invention, whose principle consists in that the guidance of substrate material is formed of hold-down means of substrate material, which are performed on endless belt of the collecting electrode.
The hold-down means of substrate material performed on the endless belt serve to secure a good contact of substrate material with surface of the collecting electrode and an steady speed in motion of substrate material through the spinning space. A good contact of substrate material with surface of the collecting electrode is a basic prerequisite for uniform depositing of nanofibres into a layer of nanofibres on the substrate material. To improve hold-down of substrate material on surface of the cylindric body of the collecting electrode it is advantageous, if the hold-down means are formed of openings in the belt of the collecting electrode, and the space behind the belt in direction from the spinning electrode to the collecting electrode is coupled with a source of underpressure. To improve transport of substrate material formed especially of fine web of relatively great thickness it is advantageous, if the endless belt of the
collecting electrode is provided on its outer side with tips, that are able to extend into the substrate material and to exit from it again, thus exactly determine the speed of motion of substrate material, its position and also its stretching between the collecting electrodes of individual one after another arranged spinning units. The tips form the hold-down means and on the belt are used either independently or in combination with openings and under pressure behind the belt of the collecting electrode.
To improve the spinning effect it is advantageous, if the tips are made of electrically conductive material and their length corresponds to thickness of the substrate material. The conductive tips on belt of the collecting electrode create irregularities of electrostatic field between the spinning electrode and the collecting electrode and so contribute to formation of Taylor cones from polymer solution on the spinning electrode, thus also to formation of nanofibres. At sufficient density of tips made of electrically conductive material it is advantageous, if these tips are mounted in body made of electrically nonconducting material and at least in position against the spinning electrode the tips are connected to the high voltage source of opposite polarity than the spinning electrode or grounded. Electrostatic field in this case is induced between the tips and the spinning electrode. The produced nanofibres are carried from the spinning electrode towards the tips of the collecting electrode and they deposit on the substrate material.
In embodiment according to the claim 6 the tips are made of electrically nonconducting material and they are mounted on belt made from electrically conductive material, which is connected to high voltage source of opposite polarity than the spinning electrode or grounded. This embodiment is suitable for substrate materials formed of thin webs of electrically conductive material or of material, at which the electric conductivity was increased by some of the known methods. At such thin webs it is sufficient, when the electrostatic field is induced between the spinning electrode and surface of the belt of the collecting electrode, with which the web is in contact.
Description of the drawing
Exemplary embodiment of the device according to the invention and the collecting electrode according to the invention is schematically represented on enclosed drawings, where Fig. 1 shows the spinning device with the collecting electrode containing the rotatably mounted smooth belt with openings with assigned source of underpressure is assigned, Fig. 2 another variant of the device at which the endless belt of the collecting electrode is provided with tips.
Examples of embodiment Exemplary embodiment of the device for production of layer of nanofibres through electrostatic spinning of polymer matrices in electrostatic field of high intensity according to the invention is represented in Fig. 1. Polymer matrix is formed of any electrostatic spinnable form of polymer possibly with various additives or mixture of polymers, that may also be added with various additives, while usually the electrostatic spinnable form is solution or melt. In the spinning chamber 1 there is arranged the spinning unit, which comprises the spinning electrode 2 and against it arranged the collecting electrode 3. Between the spinning electrode 2 and the collecting electrode 3 electrostatic field of high intensity is induced in a known manner. In the spinning chamber 1 in a known manner, not described in detail, the passage for substrate material 4 is created, which is unwound in the known not represented unwinding device and into the spinning chamber 1 it is brought by feeding rollers 51., 52. From the spinning chamber ± the substrate material 4 is taken away by the draw-off rollers 61., 62, behind which it is in a known not represented manner wound in the not represented winding device. The spinning electrode 2 may be created in any known manner, while in the represented example of embodiment is represented the rotating spinning electrode formed of rotating cylindric body, whose surface section extends into reservoir of polymer matrix being subjected to spinning.
The collecting electrode 3 contains the endless belt 3J. made of electrically conductive material, which in the spinning chamber Λ_ is mounted on a pair of stretching shafts 32, 33. In the belt 3J. the openings 311 are performed. The endless belt 3J. forms between the stretching shafts 32, 33 two
sections, the guiding section, which is in contact with the substrate material, and the reversible section. Between the guiding section and reversible section of endless belt 31_ and stretching shafts 32, 33 the underpressure chamber 34 is arranged, whose inner space is coupled with a known not represented source of underpressure, while the underpressure chamber 34 is positioned behind the guiding section of the belt 3J. in direction from the spinning electrode 2 to the collecting electrode 3. Belt 3J. of the collecting electrode 3 in a known not represented manner is connected to the high voltage source of opposite polarity than the spinning electrode 3 or grounded. At least one of the stretching shafts 32, 33 of the collecting electrode is coupled with a not represented drive, which ensures its forced rotation in direction corresponding to the direction of motion of substrate material 4, while the rotation speed is by some of the known methods regulated according to the speed of motion of the substrate material 4. The substrate material 4 is guided on a guiding section of endless belt 31.. During the spinning process the substrate material 4 moves through the spinning chamber 1 between the spinning electrode 2 and the collecting electrode 3, while it is in contact with surface of the guiding section of the endless belt 3J[ of the collecting electrode. The air or other gas from the space of spinning chamber 1_is sucked in through the openings 311 in the endless belt 31. by the underpressure chamber 34, thus the substrate material 4 is kept in contact with surface of the guiding section of the endless belt 3J. and during the spinning process the nanofibres are deposited on it. Suction of the air or other gas from the space of the spinning chamber 1 contributes also to depositing of produced nanofibres to the substrate material 4. The formed layer 41 of nanofibres is taken away together with the substrate material by means of a pair of the draw-off rollers 61., 62.
In embodiment according to the Fig. 2 the endless belt 3J. of the collecting electrode is provided with the tips 312 on the outer side. Embodiment of the tips 312 and the belt 3J. of the collecting electrode may be various according to the technological conditions of spinning, according to the kind of the polymer matrix subjected to spinning, according to the application of the produced layer of nanofibres, etc. The tips 312 are designated especially for
improvement of transport of the substrate material 4 formed especially of fine webs of a low linear cohesion at relatively high thickness. When the substrate material 4 passes around the collecting electrode 3 the tips 312 extend into the substrate material 4 and they penetrate it at least partially and subsequently exit from the substrate material 4 again. By this the tips 312 exactly determine the speed of motion of substrate material 4, its position and stretching of substrate material 4 between the collecting electrodes 3 of individual one after another arranged spinning units.
In embodiment according to Fig. 2 the belt 3J. of the collecting electrode 3 is made of electrically conductive material as well as the tips 312. Length of the tips 312 corresponds to thickness of substrate material 4 or it is smaller. The peaks of the tips 312 during passage through the spinning space remain inside the substrate material 4 or they are to be found in area of its surface, on which the nanofibres are deposited. At low concentration of the tips 312 arranged in the belt 3J. the electrostatic field between the spinning electrode 2 and the collecting electrode 3 is induced between the active part of the spinning electrode 2 and against it positioned section of the belt 3J. of the collecting electrode 3, while in the place of the tips 312 electrostatic field is induced between the peak of the tip 312 and the active section of the spinning electrode 2. On the peak of electrically conductive tip 312 the brought charge is concentrated into a point singular charge, which contributes to producing of nanofibres especially in initial phase of the spinning process. The produced nanofibres are deposited on surface of substrate material 4. At high concentration of the tips 312 electrostatic field is induced between the active section of the spinning electrode 2 and peaks of the tips 312 to be found in the given moment against this active section of the spinning electrode 2. At this embodiment the peaks of tips 312 form the grid of singular charges. The produced nanofibres are deposited on surface of the substrate material 4.
In not represented embodiment the belt 31_ of the collecting electrode 3 is made of electrically nonconducting material and in it there are mounted the tips
312 made of electrically conductive material, while the dimensions of the tips
312 are identical as at the previous embodiment. The tips 312 are connected to
high voltage source of opposite polarity than the spinning electrode 2 or grounded. Electrostatic field is induced between the peaks of the tips 312 and the active section of the spinning electrode 2 and the produced nanofibres are deposited on surface of the substrate material 4. In advantageous embodiment of the collecting electrode 3 formed of the endless belt 3J_ made of electrically nonconducting material with the tips 312 made of electrically conductive material, are to the high voltage source connected only those tips, whose peaks are to be found against the spinning electrode 2. At this embodiment the stretching shafts 3_1, 32 of the endless belt 3_1 may be mounted outside the spinning chamber Λ_. Also the reversible section of the endless belt 3J. may pass outside of the spinning chamber ±.
In not represented embodiment the belt 3J. of the collecting electrode 3 is made of electrically conductive material and in it the tips 312 made of electrically nonconducting material are mounted. In case of installation of such collecting electrode 3 into the spinning unit of the device according to the invention, electrostatic field is induced between the active section of the spinning electrode 2 and against it positioned section of the belt 3J. of the collecting electrode, while the tips 312 exert only function of transportation and maintaining of position of the substrate material 4 and they may be longer than the thickness of the substrate material 4.
All embodiments of the endless belt 3_1 of the collecting electrode 3 equipped with tips 312 may be provided with openings 3_H in the belt 31., while to the rear side of the belt 3J. the underpressure chamber 34 is assigned. The openings 311 are performed between the tips 312 and serve to sticking of the substrate material_4 to the belt 31. of the collecting electrode 3.
List of referential markings
1 spinning chamber
2 spinning electrode
3 collecting electrode
31 endless belt
311 openings in the belt
312 tips
32, 33 stretching shafts
34 underpressure chamber
4 substrate material
41 layer of nanofibres
51 , 52 feeding rollers
61 , 62 draw-off rollers
Claims
1. The device for production of layer of nanofibres through electrostatic spinning of polymer matrices in electrostatic field of a high intensity induced by difference of potentials between the spinning electrode and the collecting electrode, which comprises the endless belt mounted at least on two stretching shafts, out of which at least one is coupled with a drive, while between the spinning electrode and the collecting electrode in vicinity of the collecting electrode the guidance of substrate material is performed, characterised in that the guidance of substrate material (4) is formed of hold-down means of substrate material (4), which are performed on endless belt (31) of the collecting electrode (3).
2. The device according to the claim 1 , characterised in that the hold- down means are formed of openings (311) in the belt (31) of the collecting electrode and the space behind the belt (31) is in direction from the spinning electrode (2) to the collecting electrode (3) coupled with a source of underpressure.
3. The device according to the claim 1 or 2, characterised in that the hold-down means are formed of the tips (312) performed on outer side of the belt (31) of the collecting electrode (3).
4. The device according to the claim 3, characterised in that the tips
(312) are made of electrically conductive material.
5. The device according to the claim 4, characterised in that the tips (312) made of electrically conductive material are mounted in the belt (31) made of electrically nonconducting material, and at least in position against the spinning electrode (2) are connected to the source of high voltage of opposite polarity than the spinning electrode (2) or grounded.
6. The device according to the claim 3, characterised in that the tips (312) are made of electrically nonconducting material and are mounted in the belt (31) of electrically conductive material, which is connected to the source of high voltage of opposite polarity than the spinning electrode (2) or grounded.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZPV2007-728 | 2007-10-18 | ||
| CZ20070728A CZ2007728A3 (en) | 2007-10-18 | 2007-10-18 | Apparatus for producing a layer of nanofibers by electrostatic spinning of polymer matrices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009049563A2 true WO2009049563A2 (en) | 2009-04-23 |
| WO2009049563A3 WO2009049563A3 (en) | 2009-10-29 |
Family
ID=40567832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CZ2008/000122 Ceased WO2009049563A2 (en) | 2007-10-18 | 2008-10-15 | Device for production of layer of nanofibres through electrostatic spinning of polymer matrices |
Country Status (3)
| Country | Link |
|---|---|
| CZ (1) | CZ2007728A3 (en) |
| TW (1) | TW200938666A (en) |
| WO (1) | WO2009049563A2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009049564A3 (en) * | 2007-10-18 | 2010-02-25 | Nanopeutics S.R.O. | Collecting electrode of the device for production of nanofibres through electrostatic spinning of polymer matrices, and device comprising this collecting electrode |
| EP2458042A1 (en) | 2010-11-24 | 2012-05-30 | SpinPlant GmbH | Sheet material, method for producing the same and device for carrying out the method |
| US9065122B2 (en) | 2010-09-30 | 2015-06-23 | Applied Materials, Inc. | Electrospinning for integrated separator for lithium-ion batteries |
| WO2016038528A1 (en) * | 2014-09-08 | 2016-03-17 | Fanavaran Nano- Meghyas Company (Ltd.) | Needleless electrospinning apparatus |
| CN114657649A (en) * | 2020-12-24 | 2022-06-24 | 长胜纺织科技发展(上海)有限公司 | An electrospinning device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ306923B6 (en) * | 2016-10-06 | 2017-09-13 | Nafigate Corporation, A.S. | A method of depositing a layer of polymeric nanofibres prepared by electrostatic spinning of a polymer solution or melt into electrically non-conductive materials, and a multilayer composite comprising at least one layer of polymeric nanofibres prepared this way |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL132945A0 (en) * | 1999-06-07 | 2001-03-19 | Nicast Ltd | Filtering material and device and method of its manufacture |
| DE10105843A1 (en) * | 2001-01-16 | 2002-07-18 | Fleissner Gerold | Method and device for transporting a fleece between two rollers arranged at a distance from one another |
| CZ20032421A3 (en) * | 2003-09-08 | 2004-11-10 | Technická univerzita v Liberci | Process for producing nanofibers of polymer solution by electrostatic spinning and apparatus for making the same |
| JP4276962B2 (en) * | 2004-01-28 | 2009-06-10 | 日本バイリーン株式会社 | Method for producing laminated fiber assembly |
| EP1716274A4 (en) * | 2004-02-02 | 2008-12-10 | Kim Hag Yong | A process of preparing continuous filament composed of nanofibers |
| US20060012084A1 (en) * | 2004-07-13 | 2006-01-19 | Armantrout Jack E | Electroblowing web formation process |
| US7887311B2 (en) * | 2004-09-09 | 2011-02-15 | The Research Foundation Of State University Of New York | Apparatus and method for electro-blowing or blowing-assisted electro-spinning technology |
| US8522520B2 (en) * | 2006-11-20 | 2013-09-03 | Stellenbosch University | Yarn and a process for manufacture thereof |
| CZ2007108A3 (en) * | 2007-02-12 | 2008-08-20 | Elmarco, S. R. O. | Method of and apparatus for producing a layer of nano particles or a layer of nano fibers from solutions or melts of polymers |
-
2007
- 2007-10-18 CZ CZ20070728A patent/CZ2007728A3/en unknown
-
2008
- 2008-10-14 TW TW097139314A patent/TW200938666A/en unknown
- 2008-10-15 WO PCT/CZ2008/000122 patent/WO2009049563A2/en not_active Ceased
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009049564A3 (en) * | 2007-10-18 | 2010-02-25 | Nanopeutics S.R.O. | Collecting electrode of the device for production of nanofibres through electrostatic spinning of polymer matrices, and device comprising this collecting electrode |
| US9065122B2 (en) | 2010-09-30 | 2015-06-23 | Applied Materials, Inc. | Electrospinning for integrated separator for lithium-ion batteries |
| US9871240B2 (en) | 2010-09-30 | 2018-01-16 | Applied Materials, Inc. | Electrospinning for integrated separator for lithium-ion batteries |
| EP2458042A1 (en) | 2010-11-24 | 2012-05-30 | SpinPlant GmbH | Sheet material, method for producing the same and device for carrying out the method |
| WO2012069558A1 (en) | 2010-11-24 | 2012-05-31 | Spinplant Gmbh | Sheet material, method for producing the same and device for carrying out the method |
| US9522507B2 (en) | 2010-11-24 | 2016-12-20 | Spinplant Gmbh | Method and device for producing sheet material |
| WO2016038528A1 (en) * | 2014-09-08 | 2016-03-17 | Fanavaran Nano- Meghyas Company (Ltd.) | Needleless electrospinning apparatus |
| CN114657649A (en) * | 2020-12-24 | 2022-06-24 | 长胜纺织科技发展(上海)有限公司 | An electrospinning device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009049563A3 (en) | 2009-10-29 |
| CZ2007728A3 (en) | 2009-04-29 |
| TW200938666A (en) | 2009-09-16 |
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