WO2012077871A1 - Dispositif pour la fabrication de nanofibres et dispositif d'apport d'air associé - Google Patents

Dispositif pour la fabrication de nanofibres et dispositif d'apport d'air associé Download PDF

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Publication number
WO2012077871A1
WO2012077871A1 PCT/KR2011/003062 KR2011003062W WO2012077871A1 WO 2012077871 A1 WO2012077871 A1 WO 2012077871A1 KR 2011003062 W KR2011003062 W KR 2011003062W WO 2012077871 A1 WO2012077871 A1 WO 2012077871A1
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WIPO (PCT)
Prior art keywords
air
dehumidifier
dehumidifying
temperature
warm air
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PCT/KR2011/003062
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English (en)
Korean (ko)
Inventor
이재환
김익수
Original Assignee
주식회사 톱텍
신슈 다이가쿠
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Publication of WO2012077871A1 publication Critical patent/WO2012077871A1/fr

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    • 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
    • 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
    • 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
    • D01D13/00—Complete machines for producing artificial threads
    • 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
    • D01D13/00—Complete machines for producing artificial threads
    • D01D13/02—Elements of machines in combination
    • 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
    • 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 present invention relates to an air supply apparatus in a nanofiber production apparatus and a nanofiber production apparatus.
  • nanofibers having uniform physical properties are produced by adjusting the spinning conditions in the field spinning process (for example, the presence or absence of suspended solids in the spinning zone, the distance between the nozzle block and the collector, the structure of the collector, etc.).
  • a nanofiber production method that can be used is known (hereinafter referred to as "Patent Document 1").
  • FIG. 7 is a figure for demonstrating the nanofiber manufacturing apparatus 900 used for the nanofiber manufacturing method of patent document 1.
  • reference numeral 910 denotes a nozzle block
  • reference numeral 912 denotes a nozzle
  • reference numeral 920 denotes a blower
  • reference numeral 922 denotes a wind direction control plate
  • reference numeral 924 denotes an edge member
  • reference numeral 926 denotes a suction device.
  • 928 denotes a fan
  • 950 denotes a collector.
  • an air flow is formed in a spinning zone composed of a blower 920, two edge members 924, and a suction device 926 to be volatilized.
  • a spinning zone composed of a blower 920, two edge members 924, and a suction device 926 to be volatilized.
  • the presence or absence of suspended matter in the above-described spinning zone (hereinafter referred to as an electric field spinning device), the distance between the nozzle block and the collector, and the collector
  • environmental humidity and environmental temperature in the field emission device are also important radiation conditions. That is, in order to manufacture a nanofiber nonwoven fabric having uniform physical properties, it is preferable that the environmental humidity and the environmental temperature are maintained at a suitable humidity and temperature (constant humidity and constant temperature).
  • the present invention has been made in view of the above circumstances, and a nanofiber production apparatus and a nanofiber production capable of maintaining at least an environmental humidity at an appropriate state for a long time among the environmental humidity and the environmental temperature in an electric field radiator. It is an object to provide an air supply device in an apparatus.
  • the nanofiber manufacturing apparatus of the present invention is a VOC treatment for burning and removing volatile components (hereinafter referred to as VOCs) generated by the air supply device for supplying environmentally controlled air to the field radiating device and the field radiating device.
  • VOCs volatile components
  • a nanofiber manufacturing apparatus comprising an apparatus, wherein the air supply apparatus includes a dehumidifying apparatus that generates dehumidifying air by using a dehumidifying agent dried by warm air generated by combustion heat generated when the VOC is combusted by the VOC processing apparatus. It is characterized by having.
  • the dehumidifying apparatus includes a dehumidifying agent storing part for storing the dehumidifying agent, an air blowing part for blowing air for making the dehumidifying air, and a dehumidifying air sending part for sending the dehumidifying air. And a warm air blowing unit for blowing the warm air generated by the combustion heat, and a warm air discharge unit for discharging the warm air blown from the hot air blowing unit to the outside, and using a dehumidifying agent used when dehumidifying the blown air. It is preferable to dry and regenerate by warm air blown in from a part.
  • the air supply device includes an air flow path through which air for the dehumidification air flows, and an environmentally controlled air flow path through which the dehumidification air sent from the dehumidification air delivery unit flows. And a warm air flow passage that is provided apart from the environmentally regulated air flow passage and directs the warm air generated by the combustion heat to the warm air blowing portion, and a dehumidifier driving unit for driving the dehumidifying apparatus.
  • the air blowing unit of the dehumidifying apparatus drives the dehumidifying apparatus so that blowing of air flowing through the air flow passage is possible, and the warm air blowing portion enables blowing of warm air flowing through the hot air flow passage. It is desirable to.
  • the dehumidifying apparatus forms a case having one end face and the other end face facing the one end face, and the one end face and the other side of the case. It is rotatably provided about the central axis which penetrates a cross section,
  • the said air blowing part and the said dehumidification air sending part are each in the position which deviated from the said central axis in the said one end surface and the other end surface of the said case, respectively.
  • the hot air blowing part and the hot air discharge part are present opposite to each other, and the air blowing part and the dehumidifying air are located at a position deviated from the central axis in the one end face and the other end face of the case.
  • the said dehumidifier is comprised in one inside of the said dehumidifier as one dehumidifier storage part, and the said dehumidifier storage part is filled with the said dehumidifier.
  • the dehumidifier has n dehumidifier storage portions formed by n dividing the inside of the dehumidifier in a plane including the central axis (n is a natural number of 2 or more), and the n It is also preferable that the dehumidifier is filled in each of the two dehumidifier storage units.
  • a humidity adjusting unit for adjusting the humidity of the dehumidifying air is provided in the environmentally controlled air flow passage so that the humidity of the dehumidifying air is a suitable humidity as the environmental humidity of the electric field radiator. It is preferable that it is done.
  • a temperature adjusting unit for adjusting the temperature of the dehumidifying air is provided in the environmentally controlled air flow passage so that the temperature of the dehumidifying air is a suitable temperature as an environmental temperature of the electric field radiator. It is preferable that it is done.
  • the warm air temperature adjustment is performed such that the temperature of the warm air generated by the combustion heat is a temperature suitable for drying and regenerating the dehumidifying agent. It is preferable that a part is provided.
  • the said temperature distribution part which adjusts temperature so that the temperature of the air for making it the said dehumidification air becomes the temperature of a predetermined range is provided in the said air flow path.
  • the apparatus further includes a conveying apparatus for conveying the long sheet at a predetermined conveying speed, and as the electric field radiating apparatus, a plurality of sheets arranged in series along the conveying direction in which the long sheet is conveyed. It is preferable to have an electric field emission value.
  • the field emission device preferably has a nozzle block provided with a plurality of nozzles so that the polymer solution can be discharged over the entire predetermined region of the long sheet.
  • the air supply device in the nanofiber manufacturing apparatus of the present invention comprising an electric field radiating device for radiating nanofibers, and a VOC treatment device for burning and removing the VOC generated by the electric field radiating device
  • An air supply device in a nanofiber manufacturing apparatus for supplying environmentally controlled air to an electric field radiator, which is dehumidified using a dehumidifying agent dried by warm air generated by combustion heat generated when the VOC is combusted by the VOC treatment apparatus.
  • the dehumidifying device includes a dehumidifying agent storing part for storing the dehumidifying agent, an air blowing part for blowing air for making the dehumidifying air, a dehumidifying air sending part for sending out the dehumidifying air, and And a warm air blowing unit that blows in the warm air generated by the heat of combustion, and blows in the warm air blowing unit to externalize the warm air.
  • a dehumidifying agent storing part for storing the dehumidifying agent
  • an air blowing part for blowing air for making the dehumidifying air
  • a dehumidifying air sending part for sending out the dehumidifying air
  • a warm air blowing unit that blows in the warm air generated by the heat of combustion, and blows in the warm air blowing unit to externalize the warm air.
  • the nanofiber manufacturing apparatus of the present invention at least environmental humidity of the environmental humidity and the environmental temperature in the field emission device can be maintained in an appropriate state for a long time. That is, in the nanofiber manufacturing apparatus of the present invention, since the dehumidifying air is generated by the dehumidifying agent dried by the warm air generated by the combustion heat generated when the VOC is burned, the dehumidifying agent can be used for a long time. Therefore, it becomes possible to appropriately maintain the environmental humidity of the field radiator for a long time.
  • dehumidification air does not mean the air which all the humidity was removed, but means the air dehumidified to predetermined humidity with the dehumidifier.
  • dehumidifying air can be generated and sent out, and a dehumidifying agent (hereinafter referred to as a dehumidifying dehumidifying agent) generated by generating dehumidifying air is generated when performing VOC treatment. It can be dried and regenerated by warm air generated by combustion heat.
  • a dehumidifying agent hereinafter referred to as a dehumidifying dehumidifying agent
  • the operation of generating the dehumidifying air and the operation of drying and regenerating the moisture absorbent dehumidifying agent can be repeatedly performed, and the dehumidifying agent can be used for a long time.
  • the operation of generating dehumidified air from the blown air and the operation of drying and regenerating the moisture absorbent dehumidifying agent can be performed smoothly and efficiently. And when rotating a dehumidifier, you may make it rotate continuously, or you may make it rotate intermittently every predetermined angle.
  • the dehumidifier In the case where the dehumidifier is rotated continuously, it is preferable to set the rotational speed in consideration of the time required for generation of the dehumidifying air and the time required for regeneration of the desiccant dehumidifying agent. That is, while the dehumidifier rotates, the air blown in from the air blowing portion is dehumidified to a predetermined humidity and rotated at a speed that allows the desiccant dehumidifying agent to be sufficiently dried by warm air.
  • the dehumidifying apparatus is intermittently rotated at a predetermined angle
  • the entire interior of the dehumidifier is configured as one dehumidifier storage unit, and the dehumidifier is rotated about the central axis by allowing the dehumidifier storage unit to fill the dehumidifier.
  • the air can be sent out as dehumidifying air, and the moisture absorbent dehumidifying agent can be dried and regenerated by warm air generated by combustion heat.
  • the region of the dehumidifying dehumidifying agent and the region of the dehumidifying agent dried by warm air can be clearly separated.
  • the humidity of the dehumidified air can be set to an appropriate humidity as the environmental humidity of the field emission device. This is because the humidity of the dehumidified air generated by the dehumidifier is not necessarily appropriate as the environmental humidity of the field radiator. For example, when the humidity is 30% and the humidity of the dehumidified air is 20%, the humidity of the dehumidified air is increased to 30%. This makes it possible to set the humidity of the dehumidified air to be suitable as the environmental humidity of the field radiating device.
  • the temperature of the dehumidified air can be set to an appropriate temperature as the environmental temperature of the field emission device.
  • the temperature of the dehumidified air can be set to an appropriate temperature as the environmental temperature of the field emission device.
  • the temperature of the warm air can be set to an appropriate temperature when drying the dehumidifying agent.
  • the temperature of the warm air generated by the heat of combustion is not necessarily limited to a temperature suitable for regenerating the hygroscopic dehumidifying agent and may not reach a temperature at which the hygroscopic dehumidifying agent can be regenerated as the dehumidifying agent.
  • it is set as the temperature which makes a hygroscopic dehumidifier regenerate by raising the temperature of a warm air.
  • the moisture absorbent dehumidifying agent can be sufficiently dried to be regenerated.
  • the temperature of the air (air to be blown in by the air blowing unit) to be dehumidified air can be set to a predetermined temperature in a step before the air blowing unit blows in. This is because the temperature of the air for making the dehumidifying air may change depending on various situations such as the season, and the dehumidification apparatus is provided by setting the temperature of the air to a temperature in a predetermined range by the temperature adjusting unit in advance. The temperature adjustment of the dehumidified air produced
  • the nanofiber manufacturing apparatus of the present invention by providing a plurality of field spinnerets arranged in series along the conveying direction, it is possible to continuously mass-produce a nanofiber nonwoven fabric.
  • air which adjusted environmental humidity, environmental temperature, etc. suitably (hereafter, environmental control air) to each field radiating device, environmentally controlled air is efficiently carried out in large quantities. You need to create it.
  • an air supply device as described above, it is possible to efficiently generate environmental control air, and supply the generated environmental control air to each field radiating device.
  • the moisture absorbent dehumidifying agent is dried and regenerated by warm air generated by combustion heat treated with VOC, so that the energy obtained by VOC treatment can be effectively used.
  • the nanofiber manufacturing apparatus of the present invention it is possible to continuously mass-produce a nanofiber nonwoven fabric.
  • an air supply device as described above, it is possible to efficiently generate environmental conditioning air, and supply the generated environmental conditioning air to each field emission device.
  • the air supply apparatus in the nanofiber manufacturing apparatus of the present invention can maintain at least an environmental humidity of an environmental humidity and an environmental temperature in an electric field radiator in an appropriate state for a long time. That is, in the air supply device of the present invention, since the dehumidifying air is generated by the dehumidifying agent dried by the warm air generated by the combustion heat generated when the VOC is burned, the dehumidifying agent can be used for a long time, and accordingly, It is possible to appropriately maintain the environmental humidity of the field radiator for a long time. Also in the air supply device of the present invention, each of the features of the nanofiber production device of the present invention according to claims 2 to 19 has.
  • Nanofiber manufacturing apparatus of the present invention, medical products such as high-performance and highly sensitive textiles, cosmetic-related products such as health care and skin care, industrial materials such as wiping cloth, filters, separators of secondary batteries, and capacitors Separators, carriers of various catalysts, electronic and mechanical materials such as various sensor materials, regenerative medical materials, biomedical materials, medical MEMS materials, biosensor materials, and other medical materials, and a wide variety of other applications. Nanofibers can be prepared.
  • FIG. 1 is a front view of a nanofiber production apparatus according to Example 1.
  • FIG. 1 is a front view of a nanofiber production apparatus according to Example 1.
  • FIG. 2 is a plan view of a nanofiber manufacturing apparatus according to Example 1.
  • FIG. 3 is a diagram schematically illustrating a configuration of an air supply device.
  • FIG. 4 is a perspective view specifically showing a dehumidifier in the air supply device shown in FIG. 3.
  • FIG. 4 is a perspective view specifically showing a dehumidifier in the air supply device shown in FIG. 3.
  • FIG. 5 is a view for explaining a nanofiber production apparatus according to the second embodiment.
  • FIG. 6 is a cross-sectional view of the field emission device.
  • FIG. 1 is a front view of the nanofiber manufacturing apparatus 1 according to the first embodiment.
  • 2 is a plan view of the nanofiber manufacturing apparatus 1 according to the first embodiment. 1 and 2, illustration of the polymer solution supply unit and the polymer solution recovery unit is omitted.
  • the nanofiber manufacturing apparatus 1 includes a feeder 10 for feeding the long sheet W at a predetermined feed rate, and a feeder 10.
  • a feeder 10 for feeding the long sheet W at a predetermined feed rate
  • a feeder 10 for feeding the long sheet W at a predetermined feed rate
  • a feeder 10 for feeding the long sheet W at a predetermined feed rate
  • a feeder 10 for feeding the long sheet W at a predetermined feed rate
  • a feeder 10 for feeding the long sheet W at a predetermined feed rate
  • the heating device 30 for heating the long sheet W on which the nanofibers are deposited
  • the field radiating device 20 By burning the air permeability measuring device 40 which measures the air permeability of the long sheet W in which the nanofibers are deposited, and the volatile component (hereinafter referred to as VOC) generated when the nanofibers are deposited on the long sheet W.
  • VOC volatile component
  • the VOC treatment device 60 to remove and remove, the air supply device 70 for supplying environmentally controlled air to the field radiator 20, the transfer device 10, the field radiator 20, the heating device 30, air permeability measuring device 40, VOC processing device 60, air supply device 70, polymer supply device (not shown) and poly And a main controller 80 for controlling the operation of the recovery device.
  • two electric field radiating devices 20 arranged in series along a predetermined conveying direction a in which the long sheet W is conveyed as the electric field radiating device are used. Equipped.
  • the conveying apparatus 10 is located between the feeding roller 11 which injects the long sheet W, the winding roller 12 which winds the long sheet W, and the feeding roller 11 and the winding roller 12.
  • the feed roller 11, the winding roller 12, and the drive rollers 14, 15, 16, and 17 are comprised by the structure by which rotation drive is carried out by the drive motor which is not shown in figure.
  • the electric field radiator 20 is attached to the collector 100 via the insulating member 152 and positioned on one surface side of the long sheet W and the long sheet W.
  • the nozzle block 110 is disposed to face the collector 150 and has a plurality of nozzles for injecting a polymer solution supplied from a polymer solution supply unit (not shown) toward the long sheet W. As shown in FIG.
  • a power supply device 160 for applying a high voltage (for example, 10 kV to 80 kV, preferably around 50 kV in the present invention) between the collector 150 and the nozzle block 110;
  • An auxiliary belt device 170 which assists the long sheet W to be transported, a volatile component outlet 180 for discharging volatile components generated when the nanofibers are deposited on the long sheet W, and an air supply device ( Air conditioned by 70) C) provided with a environment adjustment air intake port 190 for blowing.
  • the positive electrode of the power supply device 160 is connected to the collector 150, and the negative electrode of the power supply device 160 is connected to the nozzle block 110 through the case 100.
  • the terminal of the volatile component discharge port 180 on the field radiating device 20 side should just be in a position where the volatile component can be discharged.
  • the electric field radiating device has a limit that satisfies this condition. It may be in the vicinity of the nozzle block 110 of (20), may be directly in the top of the field radiator 20, or may be in the ceiling of the room in which the field radiator is provided.
  • the nozzle block 110 has, as a plurality of nozzles, a plurality of upward nozzles for discharging the polymer solution upward from the discharge port.
  • the nanofiber manufacturing apparatus 1 discharges the polymer solution from the discharge ports of the plurality of upward nozzles while overflowing the polymer solution from the discharge ports of the plurality of upward nozzles, thereby electrospinning the nanofibers, and the discharge ports of the plurality of upward nozzles. It is comprised so that the polymer solution which overflowed from this may be collect
  • the nozzle block 110 includes, for example, a rectangle (square) of 0.5 m to 3 m on one side when viewed from the top surface. Have a size and shape.
  • the nozzle block 110 has a plurality of nozzles so that the polymer solution can be discharged over the entire predetermined region of the long sheet W, and the plurality of nozzles are arranged on, for example, a matrix. have.
  • the nozzles are arranged at a pitch of, for example, 1.5 cm to 6.0 cm.
  • the number of nozzles is, for example, 36 (6 * 6 when arranged in the same number in the vertical) to 21904 (148 * 148 when arranged in the same number in the vertical).
  • the auxiliary belt device 170 includes an auxiliary belt 172 that rotates in synchronization with the feeding speed of the long sheet W, and five rollers 174 for assisting the auxiliary belt 172.
  • One of the five auxiliary belt rollers 174 or two or more auxiliary belt rollers 174 is a driving roller, and the remaining auxiliary belt rollers are driven rollers. Since the auxiliary belt 172 is disposed between the collector 150 and the long sheet W, the long sheet W is smoothly conveyed without being pulled by the collector 150 to which the positive high voltage is applied. do.
  • the heating device 30 is disposed between the electric field radiating device 20 and the air permeability measuring device 40, and heats the long sheet W in which the nanofibers are deposited.
  • the heating device 30 varies depending on the type of the long sheet W or the nanofibers, but for example, the long sheet W can be heated to a temperature of 50 ° C to 300 ° C.
  • the long sheet W a nonwoven fabric, a woven fabric, a knitted fabric, or the like made of various materials can be used.
  • the thickness of the elongate sheet W can use the thing of 5 micrometers-500 micrometers, for example.
  • the length of the elongate sheet W the thing of 10 m-10 km can be used, for example.
  • the air permeability measuring device 40 measures the air permeability of the long sheet W in which the nanofibers are deposited by the field emission device. Since the measured air permeability shows the amount (thickness) of the nanofibers per unit area, it is possible to detect whether or not the nanofibers deposited on the long sheet W have a uniform thickness based on the air permeability. have. In addition, since the measuring method of air permeability, etc. are not the summary of this invention, the description is abbreviate
  • the VOC treatment device 60 burns and removes volatile components (VOC) generated when the nanofibers are deposited on the long sheet W, and supplies the warm air generated by the heat of combustion generated when the VOC is burned. It has a warm air discharge
  • the warm air discharged by the warm air discharge unit is supplied to the air supply device 70.
  • emitted from the VOC processing apparatus 60 is 40 degreeC-140 degreeC.
  • the air supply device 70 has a function of dehumidifying air using a dehumidifying agent such as silica gel to generate dehumidifying air and a dehumidifying function of drying and regenerating a dehumidifying agent (referred to as a dehumidifying dehumidifying agent) by dehumidifying.
  • a dehumidifying dehumidifying agent referred to as silica gel
  • the air supply device 70 includes a dehumidifier 710, an air flow path 720 through which air to be sent to the dehumidifier 710 (air for dehumidifying air) flows, Environmental control air flow passage 730 through which the environmental control air with proper adjustment of humidity and temperature flows, and the warm air flow passage through which the warm air generated by the combustion heat generated when the VOC is burned by the VOC treatment apparatus 60 ( 740, a warm air discharge path 750 for discharging the warm air passing through the dehumidifier 710, and a dehumidifier driving unit 760 for driving the dehumidifier 710.
  • the detailed description of the dehumidifier 710 is mentioned later.
  • the air flow path 720 is for sending air for dehumidifying air to the dehumidification device 710, and the air flow path 720 includes a dehumidifier 721 as an air inlet and air to the dehumidifier 710.
  • the temperature adjustment part 722 which performs temperature adjustment so that the said air may become the temperature of a predetermined range in the step before inflow of this, and the blower 723 which sends the temperature adjusted air to the dehumidifier 710 are provided.
  • the temperature control part 722 has the cooling part 722C and the heater 722H, and the air which should be sent to the dehumidifier 710 by operating these cooling part 722C and the heater 722H suitably selectively is
  • the temperature can be adjusted to an appropriate temperature. This is because the air circulating in the air flow path 720 is so-called outside air, so the temperature may change depending on various situations such as the season. For this reason, when the temperature of the air to be sent to the dehumidifier 710 is too high, by operating the cooling part 722C, the temperature of the air to be sent to the dehumidifier 710 becomes an appropriate temperature, and vice versa. When the temperature of the air to be sent to the dehumidifier 710 is too low, the temperature of the air to be sent to the dehumidifier 710 is set to an appropriate temperature by operating the heater 722H.
  • the environmental temperature at which the temperature of the air which should be sent to the dehumidifier 710 becomes suitable in the electric field radiator 20 It is desirable to make the temperature as close as possible. For example, if the environmental temperature appropriate for the field radiating device 20 is 25 ° C, the temperature is adjusted so that the temperature of the air to be sent to the dehumidifying device 710 is close to 25 ° C.
  • generated by the dehumidifier 710 is installed in the environmental control air flow path 730,
  • the humidity adjusting part 732 (to be described later) provided with the humidity of the dehumidified air in the same environmental control air flow path 730. Humidity can be adjusted with high accuracy.
  • the environmental control air flow path 730 is for sending environmental control air to each electric field radiator 20, and the temperature of the dehumidification air generated by the dehumidifier 710 in the environmental control air flow path 730.
  • 732 and a blower 733 for sending the environmentally regulated air to the field radiating device 20 are provided.
  • the temperature adjusting part 731 has the cooling part 731C and the heater 731H, and sends out to each electric field radiating apparatus 20 by operating the cooling part 731C and the heater 731H suitably selectively.
  • the temperature can be adjusted so that the air is at an appropriate temperature.
  • the warm air flow passage 740 is for sending the warm air discharged from the VOC processing apparatus 60 to the dehumidifier 710, and the warm air flow passage 740 has a hot air temperature adjustment for adjusting the temperature of the warm air.
  • the heater 741 is provided.
  • the heater 741 is a heater for raising warm air to an appropriate temperature, when the temperature of the warm air sent from the VOC processing apparatus 60 does not reach the temperature required for regenerating a dehumidifier.
  • the hot air flow passage 740 may be provided with a filter 742 for removing impurities in the warm air sent from the VOC processing apparatus 60 as necessary.
  • the hot air discharge path 750 is for discharging the warm air that has passed through the dehumidifier 710, and the hot air discharge path 750 has a blower for discharging the warm air that has passed through the dehumidifier 710 to the outside ( 751) is installed.
  • each air duct is provided and it is comprised so that air may flow in the said duct.
  • the dehumidifier 710 includes a dehumidifier storage unit 711 for storing a dehumidifying agent, an air blowing unit 712, a dehumidifying air sending unit 713 for sending out dehumidifying air, and a VOC processing apparatus 60. It has a warm air blowing part 714 which blows in the warm air discharged, and the warm air discharge part 715 which discharges warm air outside. And in the nanofiber manufacturing apparatus 1 which concerns on Example 1, it is assumed that the whole dehumidifier storage part 711 consists of one space part, and the dehumidifier is filled in this space part.
  • the dehumidifier 710 configured as described above dries and regenerates the dehumidified dehumidifying agent which is absorbed by generating dehumidifying air using the dehumidifying agent and generating dehumidifying air by the warm air blown in from the warm air blowing unit 714, The operation of generating dehumidified air using the regenerated dehumidifying agent is repeated.
  • FIG. 4 is a perspective view which shows the dehumidifier 710 in the air supply apparatus 70 shown in FIG. 3 specifically.
  • the dehumidifier 710 will be described in detail with reference to FIGS. 3 and 4.
  • the external shape of the dehumidifier 710 forms the cylindrical case whose both ends consist of circular cross sections, One end surface 710L (the left side cross section in FIG. 3), and the other end surface 710R (FIG. In 3, it is rotatable about the central axis x which penetrates the center of the right side cross section).
  • the dehumidifier 710 is connected to a dehumidifier driving unit (referred to as a motor) 760 by a power transmission belt 761, and rotates in the direction of arrow c by the dehumidifier driving unit 760, for example.
  • a dehumidifier driving unit referred to as a motor
  • a dehumidifier storage unit 711 is present in the dehumidifier 710, and a dehumidifier (not shown) is filled in the dehumidifier storage unit 711.
  • a dehumidifier (not shown) is filled in the dehumidifier storage unit 711.
  • one end surface 710L and the other end surface 710R of the dehumidification apparatus 710 are formed of the material which can distribute
  • one end surface 710L of the dehumidifying device 710 has a central axis including an air blowing part 712 for sending air and a warm air discharge part 715 for discharging the warm air passing through the dehumidifying device 710.
  • the dehumidifying air sending part 713 which delivers dehumidification air
  • the warm air accommodating part 714 for accommodating a warm air exist in the other end surface 710R of the dehumidifier 710 existing in between (x). Is present.
  • the air blowing part 712 exists in the position which can blow the air which distribute
  • the dehumidification air sending part 713 exists in the position which can send dehumidification air to the environment control air flow path 730, and the warm air accommodating part 714 is of the warm air which distributes the warm air flow path 740. It is in an acceptable location.
  • the air blowing part 712 and the dehumidification air sending part 713 exist in the position which deviates from the center axis x in one end surface 710L and the other end surface 710R, respectively, and exists. Doing.
  • the warm air blowing part 714 and the warm air discharge part 715 are also an air blowing part in the position which deviated from the central axis x in one end surface 710L and the other end surface 710R. 712 and the dehumidifying air sending unit 713 are respectively present at positions different from each other.
  • the dehumidifier 710 rotates about the central axis x, the air blowing unit 712, the warm air discharge unit 715, the dehumidifying air discharge unit 713, and the warm air storage unit 714. Is not installed at a fixed position in the dehumidifying device 710, but changes with rotation of the dehumidifying device 710.
  • circulates the air flow path 720 is made into the air blowing part 712 of the dehumidifier 710, and dehumidified air is used at this time.
  • the part which exists in the position which can be sent to the environmental control air flow path 730 is made into the dehumidification air sending part 713 of the dehumidifier 710, and the position which can accommodate the warm air which distributes the hot air flow path 740 is distributeable.
  • the portion existing in the hot air storage portion 714 of the dehumidifying apparatus 710 is used, and the portion existing at a position capable of discharging the warm air passing through the dehumidifying agent to the hot air discharge path 750 is the warm air of the dehumidifying apparatus 710. It is shown as the discharge part 715.
  • FIG. 1 The portion existing in the hot air storage portion 714 of the dehumidifying apparatus 710 is used, and the portion existing at a position capable of discharging the warm air passing through the dehumidifying agent to the hot air discharge path 750 is the warm air of the dehumidifying apparatus 710. It is shown as the discharge part 715.
  • the dehumidifier 710 when rotating the dehumidifier 710, the dehumidifier 710 may be rotated continuously or may be made to rotate intermittently every predetermined rotation angle. In the case where the dehumidifier 710 is continuously rotated, it is preferable to set the rotational speed in consideration of the time required for generation of the dehumidified air and the time required for regeneration of the dehumidifying dehumidifying agent. That is, while the dehumidifier 710 rotates, the air blown in from the air blowing portion is dehumidified to a predetermined humidity and rotated at a speed that allows the desiccant dehumidifying agent to be sufficiently dried by warm air.
  • the stop time of the rotation in the intermittent rotation is set in consideration of the time required for generating the dehumidifying air and the time required for regeneration of the dehumidifying dehumidifying agent. It is preferable. That is, after stopping the rotation only for the time required for dehumidifying the air blown from the air blowing unit to a predetermined humidity and for drying the hygroscopic dehumidifying agent sufficiently, the operation of repeating the rotation and rotating only a predetermined angle is repeated. do.
  • the long sheet W is set in the conveying apparatus 10, and then the electric field radiating is carried out while the long sheet W is conveyed from the feeding roller 11 toward the winding roller 12 at a predetermined conveying speed. Nanofibers are sequentially deposited on the long sheet W for the device 20.
  • the long sheet W having the nanofibers deposited thereon is heated by the heating device 30.
  • the nanofiber nonwoven fabric which consists of a long sheet in which the nanofibers were deposited is manufactured.
  • the “nanofiber nonwoven fabric” refers to a long sheet in which nanofibers are deposited.
  • the nanofiber nonwoven fabric may be a product as it is, a long sheet is removed from the nanofiber nonwoven fabric to produce a "nonwoven fabric consisting of only a nanofiber layer", which may be referred to as a product.
  • a “nano fiber” consists of a polymer and means the fiber of an average diameter of several nm-several thousand nm.
  • a "polymer solution” means the solution which melt
  • polylactic acid polypropylene
  • PVAc polyvinyl acetate
  • PET polyethylene terephthalate
  • PBT polybutylene terephthalate
  • PEN polyethylene naphtha Rate
  • PA Polyamide
  • PUR Polyurethane
  • PVA Polyvinyl Alcohol
  • PAN Polyacrylonitrile
  • PAN Polyetherimide
  • PCL Polycaprolactone
  • PLGA Polylactic acid glycol Acids
  • silk cellulose, chitosan and the like
  • the solvent used for the polymer solution for example, dichloromethane, dimethyl formamide, dimethyl sulfoxide, methyl ethyl ketone, chloroform, acetone, water, formic acid, acetic acid, cyclohexane, THF and the like can be used. You may mix and use multiple types of solvent.
  • the polymer solution may contain additives such as conductivity improvers.
  • the environmental humidity and the environmental temperature in the electric field radiator 20 may be simply expressed as humidity and temperature.
  • the air supply device 70 supplies the environmentally adjusted air to each field radiating device 20.
  • the air supply device 70 uses the air blown in from the air blowing unit 712 of the dehumidifying device 710 as the dehumidifying air with a dehumidifying agent, and then the dehumidifying air is dehumidified air. It sends out from the sending part 713.
  • the dehumidified air sent out from the dehumidified air sending unit 713 passes through the cooling unit 731C, the humidity adjusting unit 732, and the heater 731H so as to have an optimum humidity and temperature in each electric field radiating device 20. Humidity and temperature adjustments are made.
  • the environmentally controlled air in which the humidity adjustment and the temperature adjustment are made is supplied to each field radiator 20.
  • each field radiator 20 depends on which nanofiber nonwoven fabric is manufactured, but the humidity is preferably adjusted so that the humidity ranges from 20% to 60%. About temperature, it is preferable to adjust temperature so that it may become a range of 20 degreeC-40 degreeC.
  • the air to be sent to each field radiator 20 is supplied to the corresponding humidity. It is preferable to set it to (30%) and the said temperature (25 degreeC), and to perform electric field emission in the state which kept the said humidity and temperature.
  • each field radiator 20 volatile components are generated at a high concentration when electric field spinning is performed.
  • This volatile component is sent to the VOC processing apparatus 60, and the VOC processing apparatus 60 carries out the process which burns and removes a VOC.
  • generated by the heat of combustion at the time of burning and removing VOC is sent to the air supply apparatus 70. As shown in FIG.
  • the warm air sent out from the VOC processing apparatus 60 is sent to the heater 741 via the filter 742 via the warm air flow passage 740 in the air supply device 70.
  • the heater 741 raises the warm air to an appropriate temperature. If the temperature of the warm air is a temperature suitable for regenerating the dehumidifier, the heater 741 does not operate particularly. Pass it through.
  • the warm air passing through the heater 741 is supplied to the warm air blowing portion 714 of the dehumidifying device 710, and the dry air absorbent dehumidifying agent stored in the dehumidifying device 710 can be dried and regenerated by the dehumidifying agent before the moisture absorption.
  • the dehumidifying dehumidifier of the state which absorbed moisture by generating dehumidification air is a warm air by the dehumidifier 710 rotating. It becomes a position shot by the warm air from the blowing part 714.
  • the dehumidifying agent of the already regenerated state by the warm air from the warm air blowing part 714 turns into the position exposed to the air blown in from the air blowing part 712 by rotating the dehumidifier 710.
  • the dehumidification air is humidity-regulated and temperature-adjusted so that humidity and temperature may become predetermined humidity and predetermined temperature in the process of distributing the environment adjustment air flow path 730.
  • some errors are allowed for humidity adjustment and temperature-adjusted humidity and temperature. For example, when the humidity is to be 30%, about 30% ⁇ 5% is an allowable range. When the temperature is to be 25 ° C, about 25 ° C ⁇ 1.0 ° C is the allowable range.
  • the air (environmentally controlled air) adjusted to the optimal humidity and temperature in each field radiating apparatus 20 was supplied to each field radiating apparatus 20.
  • FIG. Can supply Accordingly, in each field radiating device 20, it is possible to continuously mass-produce a nanofiber nonwoven fabric having uniform physical properties.
  • produced the moisture by generating dehumidification air is regenerated using the warm air produced
  • the dehumidifying agent can be used repeatedly.
  • the energy originally discarded can be used effectively.
  • the electric field radiating apparatus includes a plurality of electric field radiating apparatuses arranged in series along a predetermined conveying direction a in which the long sheet W is conveyed ( 20), it is possible to sequentially deposit nanofibers on the long sheet W in each of the plurality of electric field radiating devices 20, and further increase the productivity of the nanofiber nonwoven fabric having uniform physical properties. Mass production is possible.
  • the dehumidifying apparatus 710 has the entire interior of the dehumidifying apparatus 710 configured as one dehumidifying agent storage part, and the dehumidifying agent storage part. Although it is set as the structure which fills a dehumidifier, n n dehumidifier storage rooms are formed by dividing n inside (n is natural water of 2 or more) in the plane containing the central axis x, n The dehumidifier may be filled in each of the two dehumidifier storage chambers.
  • FIG. 5 is a figure for demonstrating the nanofiber manufacturing apparatus 2 which concerns on Example 2.
  • FIG. 5 is a figure which shows typically the internal structure when the dehumidifier 710 is seen from the direction (central cross section 710L side in FIG. 3 and FIG. 4) along a central axis.
  • the nanofiber manufacturing apparatus 2 according to the second embodiment is different from the nanofiber manufacturing apparatus 1 according to the first embodiment as the dehumidifying apparatus 710. Therefore, in FIG. 5, only the dehumidifier 710 used for the nanofiber manufacturing apparatus 2 which concerns on Example 2 is shown.
  • the dehumidifier 710 when rotating the dehumidifier 710, the dehumidifier 710 may be rotated continuously, or it may be made to rotate intermittently every predetermined angle. And when rotating the dehumidifier 710 intermittently every predetermined angle, one rotation angle is set to 60 degrees, and an intermittent rotation is performed for every 60 degrees rotation angles.
  • the dehumidifying air is generated by the dehumidifying agent storage part 712a at this time, and the dehumidifying desiccant is regenerated by the dehumidifying agent storage part 712d at the same time.
  • the dehumidifier contained in the dehumidifier storage parts 712b and 712c is already a dehumidifying dehumidifier, and the dehumidifier stored in the dehumidifier storage parts 712e and 712f is already a regenerated dehumidifier.
  • the dehumidifying device 710 is 60 in the direction of arrow c. ° Rotate As a result, the dehumidifying air is generated by the dehumidifying agent storage part 712f at this time, and the regeneration of the dehumidifying dehumidifying agent is performed by the dehumidifying agent storage part 712c at the same time.
  • the stop time of rotation can be set in consideration of the time required for generation of dehumidified air and the time required for regeneration of the dehumidifying dehumidifying agent.
  • the dehumidifier 710 may be rotated continuously. In this case, while the dehumidifying device 710 is rotating, the dehumidifying air is generated and the dehumidifying dehumidifying agent is regenerated, so that the rotational speed is set in consideration of the time required for generating the dehumidifying air and the time required for regenerating the dehumidifying dehumidifying agent. do.
  • the dehumidifying apparatus 710 By setting the dehumidifying apparatus 710 as shown in FIG. 5, the effect similar to the nanofiber manufacturing apparatus 1 which concerns on Example 1 can be acquired. Moreover, by setting the dehumidifier 710 as the structure shown in FIG. 5, the area
  • the nanofiber production apparatus of the present invention has been described with an example of a nanofiber production apparatus having two field emission devices as an electric field radiator, but the present invention is not limited thereto.
  • the present invention can also be applied to a nanofiber production apparatus having one or three or more field emission values.
  • the environmentally controlled air generated by the air supply device 70 is configured to be supplied to the individual field radiator 20, but in a facility where a plurality of field radiators are provided.
  • Environmentally controlled air may be supplied, and the whole facility may be filled with environmentally regulated air. In this way, by filling the whole inside of the facility where the plurality of field radiating devices is provided with environmentally regulated air, environmentally controlled air is supplied to each field radiating device as a result.
  • the apparatus for producing nanofibers of the present invention has been described using a bottom-up field spinning device having an upward nozzle, but the present invention is not limited thereto.
  • the present invention may be applied to a top-down field radiator having a downward nozzle or a nanofiber production apparatus having a side field emission device having a side nozzle.
  • the present invention uses the field emission value in which the positive electrode of the power supply device 160 is connected to the collector 150 and the negative electrode of the power supply device 160 is connected to the nozzle block 110.
  • the nanofiber manufacturing apparatus of this invention was demonstrated, this invention is not limited to this.
  • the present invention can also be applied to a nanofiber production apparatus having an electric field emission value in which a positive electrode of a power supply device is connected to a nozzle and a negative electrode of the power supply device is connected to a collector.
  • the temperature adjusting section 731 having the cooling section 731C and the heater 731H was used, but the present invention is not limited to this, but it is not limited to this.
  • the configuration can be changed to match the temperature.
  • the temperature adjusting part 731 without the cooling part 731C may be used, or the temperature adjusting part 731 without the heater 731H may be used.
  • the present invention has been described using a nanofiber production apparatus in which one nozzle block is disposed in one field radiating device, but the present invention is not limited thereto.
  • 6 is a cross-sectional view of the field emission device 20a.
  • the present invention may be applied to a nanofiber manufacturing apparatus in which two nozzle blocks 110a1 and 110a2 are disposed in one field radiator 20a, and two or more nozzle blocks.
  • the present invention can also be applied to this excreted nanofiber manufacturing apparatus.
  • the nozzle arrangement pitch may be the same with all nozzle blocks, and the nozzle arrangement pitch may be different with each nozzle block.
  • the height position of the nozzle block may be the same for all the nozzle blocks, or the height position of the nozzle block may be different for each nozzle block.
  • a mechanism for reciprocating the nozzle block at a predetermined reciprocating cycle along the width direction of the long sheet may be provided.
  • the mechanism By using the mechanism, electric field spinning is performed while reciprocating the nozzle block at a predetermined reciprocating cycle, so that the deposition amount of the polymer fibers along the width direction of the long sheet can be made uniform.
  • the reciprocating cycle and the reciprocating distance of the nozzle block may be controlled independently for each field radiating device or for each nozzle block. With such a configuration, it is possible to reciprocate all the nozzle blocks at the same period, and to reciprocate each nozzle block at different periods. Further, the reciprocating distance of the reciprocating motion may be the same with all the nozzle blocks, or the reciprocating distance of the reciprocating motion with each nozzle block may be different.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention permet de maintenir de façon appropriée pendant une longue durée l'humidité et/ou la température de l'environnement d'un dispositif à émission de champ. Le dispositif (1) pour la fabrication de nanofibres comporte: un dispositif (20) à émission de champ, qui produit des nanofibres; un dispositif (70) d'apport d'air, qui fournit au dispositif (20) à émission de champ de l'air régulé par rapport à l'environnement; et un dispositif (60) de traitement de composants volatils (VOC), qui brûle et élimine les VOC produits par le dispositif (20) à émission de champ, le dispositif (70) d'apport d'air étant équipé d'un dispositif déshumidificateur pour produire de l'air déshumidifié au moyen d'un agent déshumidificateur, séché par l'air chaud généré pendant la combustion des VOC par le dispositif (60) de traitement de VOC.
PCT/KR2011/003062 2010-12-06 2011-04-27 Dispositif pour la fabrication de nanofibres et dispositif d'apport d'air associé WO2012077871A1 (fr)

Applications Claiming Priority (4)

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JP2010272077A JP5715396B2 (ja) 2010-12-06 2010-12-06 ナノ繊維製造装置及びナノ繊維製造装置における空気供給装置
JP2010-272077 2010-12-06
KR1020110016684A KR101087389B1 (ko) 2010-12-06 2011-02-24 나노섬유 제조장치 및 나노섬유 제조장치에 있어서의 공기공급장치
KR10-2011-0016684 2011-02-24

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EP2966197A4 (fr) * 2013-03-08 2017-03-08 Finetex Ene, Inc. Appareil d'électrofilage
KR101382573B1 (ko) * 2013-04-17 2014-04-08 (주)에프티이앤이 나노섬유 제조용 전기방사장치
KR101457022B1 (ko) * 2013-04-23 2014-10-31 사단법인 전북대학교자동차부품금형기술혁신센터 양산형 전기방사장치
KR102362227B1 (ko) * 2017-01-06 2022-02-11 에스에이치피피 글로벌 테크놀러지스 비.브이. 기재 상에 나노스케일 또는 서브마이크론 스케일 폴리머 섬유 웹을 연속 무바늘 전기 방사하기 위한 장치
JP6672198B2 (ja) * 2017-02-23 2020-03-25 富士フイルム株式会社 ナノファイバ製造方法及び装置
CN112760823A (zh) * 2020-12-29 2021-05-07 重庆中纳科技有限公司 一种纳米纤维静电纺丝设备

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