The present invention relates to a nano membrane including a nanofiber and, more specifically, to a nano membrane including different kinds of nanofibers and nanofibers having different diameters.
D04H 1/728 - 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
D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
The present invention relates to a nano membrane including a nanofiber and, more specifically, to a two-layer nano membrane including different kinds of nanofiber layers formed by electrospinning a polymer solution.
D04H 1/728 - 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
D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
B01D 71/42 - Polymers of nitriles, e.g. polyacrylonitrile
3.
ELECTROSPINNING APPARATUS COMPRISING TEMPERATURE ADJUSTMENT DEVICE, PREPARATION METHOD, FOR NANOFIBERS OR NANOMEMBRANE, USING SAME, AND NANOFIBERS OR NANOMEMBRANE PREPARED BY MEANS OF SAME
The present invention relates to an electrospinning apparatus comprising a temperature adjustment device, a preparation method, for nanofibers or a nanomembrane, using same, and nanofibers or a nanomembrane prepared by means of same and, more specifically, to a method in which nanofibers or a nanomembrane are prepared by electrospinning a spinning solution, which comprises a high concentration polymer, at a temperature that is higher than the room temperature which is the existing electrospinning temperature. In addition, the present invention relates to an electrospinning apparatus which has an overflow system reusing a spinning solution, which has not been nanofiberized, and comprises a temperature adjustment device for, instead of maintaining the concentration of a spinning solution being electrospinned, maintaining the viscosity of the spinning solution, thereby not having to use a diluting agent. Also, the present invention relates to a method in which: nozzle tube bodies, which have provided a plurality of pin-type nozzles, are arrayed in the MD direction or CD direction of a substrate that is provided inside a unit of an electrospinning apparatus; each nozzle tube body and nozzle are controlled; and adjusted is the spinning amount of a polymer spinning solution that is being electrospinned in the MD direction or CD direction of the substrate, thereby adjusting the base weight of a nanomembrane being laminated on the substrate.
D01D 5/00 - Formation of filaments, threads, or the like
D04H 1/728 - 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
B01D 61/00 - Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltrationApparatus, accessories or auxiliary operations specially adapted therefor
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
B01D 71/00 - Semi-permeable membranes for separation processes or apparatus characterised by the materialManufacturing processes specially adapted therefor
The present invention relates to a metal plating apparatus for a nanofiber web, and the purpose thereof is to provide a metal plating apparatus for a nanofiber web, the apparatus facilitating metal plating for the nanofiber web, which has insufficient physical properties and is manufactured by electrospinning, by performing metal plating on the nanofiber web while an impeller, in which the nanofiber web is interposed, rotates within a bath filled with a chemical plating solution for metal plating. The metal plating apparatus for a nanofiber web comprises: a bath comprising a bath main body and a bath cover, the bath main body having a chemical plating solution filled on the inside thereof and having a discharge portion provided at the lower section thereof in order to discharge the used chemical plating solution, and the bath cover being provided on the upper section of the bath main body and being formed so as to be openable and closeable by being moved in the vertical direction; a laminated impeller comprising an impeller case and an impeller member, the impeller case being rotatably mounted within the bath, and the impeller member being inserted into the impeller case by being laminated in at least two layers and allowing the nanofiber web to be interposed therebetween; and a control part controllably connected to the bath and the laminated impeller.
The purpose of the present invention is to provide an electrospinning device for manufacturing a nanofiber, the device comprising multiple units arranged successively, wherein units for ejecting a hot melt and units for ejecting a polymer spinning solution are installed alternately, the holt melt is ejected onto a substrate from nozzle blocks of the hot melt units positioned on the front end, and the polymer spinning solution is electrically spun onto the substrate, to which the hot melt has been ejected, from nozzle blocks of the spinning solution units positioned on the rear end, thereby stacking a nanofiber web. Accordingly, the nanofiber web can be easily attached to the substrate; the device is applicable both to an upward electrospinning device and a downward electrospinning device; the holt melt is not only ejected separately from the polymer spinning solution but also is repeatedly ejected to specific areas and parts on the substrate, thereby substantially reducing use of the hot melt; interference of the hot melt with the nanofiber web is minimized concurrently with substantially reducing use of the hot melt, thereby improving the performance and quality of the nanofiber or the nanofiber filter; the hot melt can not only be ejected onto the substrate through each unit, but the same or different kinds of polymer spinning solutions can be electrically spun, thereby manufacturing various materials and kinds of nanofibers and nanofiber filters, and enabling mass production of nanofibers and nanofiber filters.
The present invention relates to an electrospinning device for manufacturing a nanofiber, and the purpose of the present invention is to provide an electrospinning device for manufacturing a nanofiber, wherein a substrate is transferred while a nanofiber web is stacked and formed on a side surface of the substrate through electrospinning of a polymer spinning solution, and the substrate is rotated during transfer such that the nanofiber web is stacked and formed on the other side surface; accordingly, the nanofiber web can be stacked and formed on both surfaces of the substrate through a single manufacturing process; a drying process is performed simultaneously during rotation of the substrate such that, at the same time the nanofiber web is stacked on both surfaces of the substrate, the substrate is dried through a single manufacturing process, thereby removing any solvent remaining on the nanofiber web; and, as electrospinning devices, electro-blown electrospinning devices and electro-spinning electrospinning devices are installed alternately, such that electro-spinning electrospinning and electro-blown electrospinning can be performed alternately with regard to a transferred substrate.
The purpose of the present invention is to provide a filter comprising a nanofiber and a method for manufacturing the same, and the present invention relates to a filter manufactured by continuously stacking/forming a spinning solution by means of an electrospinning device comprising at least two units, and a method for manufacturing the same. A filter manufactured by the method is advantageous in that manufacturing processes can be made continuous, thereby making processes efficient and enabling mass production, and is characterized in that, by having a nanofiber nonwoven fabric, a filter having excellent filtering efficiency is manufactured.
D04H 1/559 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
D04H 1/728 - 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
D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
B01D 39/02 - Loose filtering material, e.g. loose fibres
8.
FILTER HAVING NANO-FIBER ON BOTH SURFACES OF SUBSTRATE THEREOF AND METHOD FOR MANUFACTURING SAME
The present invention relates to a method for manufacturing a filter comprising a nano-fiber on both surfaces of a substrate thereof, and the purpose of the present invention is to provide a filter manufactured by stacking one layer or two or more layers of nano-fiber nonwovens on each surface of the substrate, and a method for manufacturing the same. A process of manufacturing the filter according to the present invention comprises a process of rotating a textile by 180 degrees and turning over the textile in order to stack the nano-fiber nonwovens on both surfaces of the substrate, thereby simplifying the manufacturing process, and a concept of a unit is introduced to an electrospinning device, thereby manufacturing a filter which can be mass-produced.
D04H 1/559 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
D04H 1/728 - 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
B01D 39/08 - Filter cloth, i.e. woven, knitted or interlaced material
9.
FILTER COMPRISING NANOFIBER BETWEEN SUBSTRATES AND METHOD FOR MANUFACTURING SAME
The purpose of the present invention is to provide a filter comprising a nanofiber between substrates, and the present invention is technically characterized in that a filter comprising a nanofiber is manufactured by electrospinning a polymer spinning solution on a first substrate such that a nanofiber nonwoven fabric is stacked and formed and then bonding a second substrate on the stacked nanofiber nonwoven fabric.
D04H 1/559 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
D04H 1/728 - 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
B01D 39/08 - Filter cloth, i.e. woven, knitted or interlaced material
10.
MULTI-LAYERED NANOFIBER FILTER HAVING IMPROVED HEAT RESISTANCE, AND METHOD FOR MANUFACTURING SAME
The present invention relates to a multi-layered nanofiber filter having improved heat resistance and a method for manufacturing same, in which polymer is electrospun on a substrate to continuously layer polymer nanofibers, thereby obtaining highly effective and heat resistant polymer nanofiber filter having low pressure loss despite having micropores.
D04H 1/728 - 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
D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
B01D 39/02 - Loose filtering material, e.g. loose fibres
11.
MULTI-LAYERED NANOFIBER FILTER MEDIUM USING ELECTRO-BLOWING, MELT-BLOWING OR ELECTROSPINNING, AND METHOD FOR MANUFACTURING SAME
The present invention relates to a multi-layered nanofiber filter medium and a method for manufacturing same, in which, to improve the low heat resistance of existing filters, nanofibers are layered by continuously electro-blowing and electrospinning heat resistant polymer on a cellulose substrate. Additionally, the present invention relates to a multi-layered nanofiber filter medium and a method for manufacturing same, in which nanofibers are layered by continuously melt-blowing and electrospinning heat resistant polymer on a cellulose substrate.
D04H 1/728 - 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
D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
B01D 39/02 - Loose filtering material, e.g. loose fibres
The present invention relates to an electrospinning apparatus, and the purpose of the present invention is to provide an electrospinning apparatus capable of: producing nanofibers having various ingredients and thicknesses by controlling the temperature of at least one solution discharged from nozzles mounted on the tubular bodies of a nozzle block and thus controlling the viscosity of the solution which is electrospun; producing nanofibers having uniform quality without applying a density difference and a voltage difference by disposing the front end portions of the nozzles in a flare shape; and mass-producing the nanofibers at a lost cost as well as reducing the amount of the solution used by removing an overflow prevention system and using a metering pump alone or by using the metering pump and the overflow prevention system alternately or in a hybrid manner.
The present invention relates to an electrospinning apparatus, and the purpose of the present invention is to provide an electrospinning apparatus capable of: forming a buffer section between the respective units of the electrospinning apparatus and installing a vertically movable adjustment roller in the buffer section so as to adjust the transfer speed and time of a long sheet, which passes through the respective units, for each section and thus prevent the crumpling, sagging, snapping, breakage, and damage of the long sheet; solving the problem of the abnormal transfer of the long sheet which may occur due to electrostatic attraction during electrospinning and, in a nanofiber production step, disposing an apparatus for detecting the sagging of the long sheet before and after a spinning zone, detecting the sagging of the long sheet, and transmitting the signal to an apparatus for assisting the transfer of the long sheet so as to adjust the transfer speed of the long sheet, which is fixed by means of electrostatic attraction to a collector, on the basis of the detected signal and automatically improve the sagging of the sheet and thereby effectively prevent the problem caused by the sagging of the sheet; and thus mass-producing nanofibers of uniform quality.
D01D 13/00 - Complete machines for producing man-made threads
14.
METHOD FOR MANUFACTURING MULTI-LAYER SEPARATION FILM FOR SECONDARY BATTERY HAVING IMPROVED HEAT RESISTANCE, AND MULTI-LAYER SEPARATION FILM MANUFACTURED THEREBY
The present invention relates to a method for manufacturing a multi-layer separation film for a secondary battery having improved heat resistance, and a multi-layer separation film manufactured thereby, and more specifically, to a method for a multi-layer separation film for a secondary battery having improved heat resistance for improving heat stability, and a multi-layer separation film manufactured thereby, wherein in the manufacturing of the separation film, a nozzle block provided with a nozzle of an electrospinning device is divided into two or more radiation sections in parallel, a supply device is independently connected and provided to the nozzle of the nozzle block positioned in each divided radiation section, and the nozzle of each divided radiation section electrospins a polymer on a collector, thereby enabling the manufacture of the multi-layer separation film having improved heat resistance.
The present invention relates to a method for preparing a porous separation membrane for a second battery and a porous separation membrane for a second battery prepared thereby and, more specifically, to a method for preparing a porous separation membrane for a second battery and a porous separation membrane for a second battery prepared thereby, wherein the porous separation membrane is prepared by using an upward electrospinning process such that the separation membrane comprises nano fibers prepared through electrospinning, and thus has porous properties, droplets generated during conventional downward electrospinning are not formed, and thermal stability is improved compared to a conventional polyolefin-based film type separation membrane.
The present invention relates to a method for manufacturing a separation membrane/electrode junction body for a secondary battery, and more specifically, to: a superior separation membrane/electrode junction body for a secondary battery having improved heat-resistant stability, wherein an electrode and a separation membrane formed by directly electrospinning a heat-resistant polymer dope on an anode body are integrated, thereby reducing the separation membrane thickness and battery volume; and a method for manufacturing the same.
The present invention relates to a filter medium having nanofibers on both sides of a base and a manufacturing method therefor for overcoming the low thermal stability of conventional nanofiber filters, the filter medium having improved heat resistance by stacking the polymeric nanofibers on both sides of the base using electrospinning. The present invention is characterized by producing polymeric nanofibers on both sides of a base by successive electrospinning and thereby manufacturing a functional filter medium having process efficiency and price competitiveness and ensuring high efficiency and heat resistance.
D04H 1/728 - 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
D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
B01D 39/02 - Loose filtering material, e.g. loose fibres
D04H 3/016 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
The present invention relates to an electrospinning apparatus capable of: reusing and recycling VOCs, which are generated when a spinning solution sprayed from the nozzle of a nozzle block in the electrospinning apparatus is stacked on a long sheet, and a spinning solution which has overflowed without being nano-fiberized by condensing/liquefying same and then adding the resulting products to the spinning solution; removing an upper insulating member inside a case for attaching a collector thereto by forming the lower part of the case for the electrospinning apparatus with a conductor and the upper part thereof with an insulator, and thereby simplifying the overall configuration of the electrospinning apparatus; producing nanofibers having different polymers or diameters by alternately installing a bottom-up electrospinning apparatus and an up-bottom electrospinning apparatus and alternately spraying the spinning solution; producing complementary and advanced nanofiber products by performing bottom-up and up-bottom electrospinning in one process; expanding the filtration area of a filter medium when fabricating same with the nanofibers by forming corrugations on the produced filter medium; and consequently ensuring the improved filtration area of the filter medium and thereby improving the performance of the filter medium and simultaneously prolonging the lifespan thereof.
Woven, Non-Woven or Knitted Fabrics Made of Synthetic Fiber and Wool Fabrics Used for Manufacture of Clothing, Gloves, Shoes, Caps, Hats, Rucksacks and Bags
20.
NANOFIBER FILTER MEDIUM HAVING A NANOFIBER ADHESIVE LAYER, AND METHOD FOR MANUFACTURING SAME
The present invention relates to a filter, to a nanofiber filter, and to a method for manufacturing same. A method for manufacturing a nanofiber filter medium according to the present invention comprises the steps of: forming a nanofiber filter, including a base layer and a nanofiber adhesive layer coupled to at least one of the two sides of the base layer, wherein the nanofiber filter is formed by thermally bonding a hot melt sheet, having nanofibers attached thereon, to the base layer; preparing a nanofiber adhesive sheet having a nanofiber layer electrospun on the hot melt sheet; and thermally bonding the nanofiber adhesive sheet to at least one of the two sides of the base.
B01D 39/00 - Filtering material for liquid or gaseous fluids
B01D 35/00 - Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups Auxiliary devices for filtrationFilter housing constructions
21.
METHOD FOR MANUFACTURING CARBON NANOTUBES AND THE LIKE
Disclosed is a method for manufacturing carbon nanotubes, comprising a process for preparing metal-containing nanofibers and a process for producing carbon nanotubes. The process for preparing metal-containing nanofibers that prepares metal-containing nanofibers (28) having organic polymer nanofibers and a metal, said metal having carbon nanotube–producing catalytic properties. The process for producing carbon nanotubes involves: irradiating a heating container (16) which is provided with a substance that converts electromagnetic energy into thermal energy and in which metal-containing nanofibers (28) are placed, thereby generating heat in the container to heat the metal-containing nanofibers (28), and producing, with nanofibers as the carbon source, carbon nanotubes which include metal. This manufacturing method enables the production of carbon nanotubes in a short time using an inexpensive heating device. Additionally, no carbon sources other than metal-containing nanofibers are necessary, so the production process can be simplified.
Disclosed is a process for producing a carbon nanotube using an inexpensive apparatus in a short time. The process for producing a carbon nanotube comprises a housing step of housing at least one metal catalyst (27) selected from the group consisting of iron, cobalt, and nickel in a reaction vessel (16) provided with a material that can convert an electromagnetic wave energy to a heat energy, a heating step of applying an electromagnetic wave energy to the reaction vessel (16) to heat the inside of the reaction vessel (16) to a temperature of 600°C or above and 900°C or below, and a reacting step of bringing an organic compound (26) into contact with a metal catalyst (27) while applying an electromagnetic wave energy to the reaction vessel (16) to maintain the internal temperature of the reaction vessel (16) at 600°C or above and 900°C or below. Preferably, the metal catalyst (27) is nickel, and the organic compound (26) is stearic acid.
Disclosed is a process for producing carbon nanotubes that can produce carbon nanotubes using an inexpensive apparatus in a short time. The process for producing carbon nanotubes comprises the step of placing a metal complex containing at least one metal selected from the group consisting of iron, cobalt, and nickel and an organic compound within a reaction vessel (16) provided with a material, which can convert an electromagnetic wave energy to a thermal energy, and the step of applying an electromagnetic wave energy into the reaction vessel (16) to heat the inside of the reaction vessel (16) to a temperature of 700°C or above and 900°C or below and then maintaining the above temperature for a predetermined period of time. Metal complexes usable in this process include, for example, nickel stearate or nickel benzoate.
Disclosed is a conductor-covered fiber assembly (1) comprising an assembly of conductor-covered fibers (10). The conductor-covered fiber (10) comprises a polymer fiber (20) having an average diameter of 50 to 800 nm and a conductor (30) covering the surface of the polymer fiber (20), and spaces are present among the conductor-covered fibers (10). In the conductor-covered fiber assembly (1), 40 to 90% of the unit volume of the conductor-covered fiber assembly (1) is accounted for by the spaces present among the conductor-covered fibers (10), and the percentage area of portions not covered with the conductor (30) in the surface of the polymer fiber (20) is not more than 20%. The conductor-covered fiber assembly (1) is suitable for use in various applications such as heat insulating materials, electromagnetic wave shielding materials, and electromagnetic wave absorbing materials.
D06M 11/83 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with metalsTreating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with metal-generating compounds, e.g. metal carbonylsReduction of metal compounds on textiles
D06M 11/74 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphiteTreating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbidesTreating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with graphitic acids or their salts
17 - Rubber and plastic; packing and insulating materials
Goods & Services
FILTRATION MEDIA IN THE FORM OF A MEMBRANE OR MULTI-LAYER FABRIC FOR USE IN FILTERING GASES AND LIQUIDS, NAMELY, WATER FILTERS, AIR FILTERS FOR DOMESTIC USE, AIR FILTERS FOR INDUSTRIAL INSTALLATIONS; FILTRATION MEDIA IN THE FORM OF A MEMBRANE OR MULTI-LAYER FABRIC FOR USE IN AIR PURIFYING APPARATUS, WATER FILTERING APPARATUS, VENTILATION DEVICES AND INSTALLATIONS, HEATING AND COOLING SYSTEMS PLASTIC FILM FOR COMMERCIAL OR INDUSTRIAL USE; FILTERING MATERIALS FOR FURTHER MANUFACTURE IN THE NATURE OF POLYMER SHEETS, BOARDS AND PLATES OF PLASTICS, PLASTIC FILM, AND POLYMERIC FILTER MEDIA, ALL FOR USE IN THE MANUFACTURE OF FILTERS AND FILTRATION ELEMENTS FOR DOMESTIC AND INDUSTRIAL FILTRATION
26.
Electric spinning apparatus for mass-production of nano-fiber
The present invention relates to an electrospinning apparatus for mass-production of nanofibers, particularly to an electrospinning apparatus with an electric stability and an improved nozzle blocks. The bottom-up electrospinning apparatus for the mass-production of nanofiber comprises at least one nozzle block having a plurality of spinning nozzles arranged in the horizontal and vertical direction; a collector installed over the nozzle blocks in order to correspond to the nozzle blocks and maintain a certain distance in between; a power source to apply voltage difference between the nozzle block and the collector; and a spinning solution container to supply the spinning solution to the nozzle block, wherein the nozzle block and the collector are connected to the positive terminal and the negative terminal, respectively and among a plurality of spinning nozzles arranged along the horizontal line, a spinning nozzle in the middle and a spinning nozzle in the end have different height.
D01D 5/00 - Formation of filaments, threads, or the like
D04H 3/03 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
