WO2018235866A1 - ナノファイバー製造装置用の吐出ノズル、及び吐出ノズルを備えたナノファイバー製造装置 - Google Patents

ナノファイバー製造装置用の吐出ノズル、及び吐出ノズルを備えたナノファイバー製造装置 Download PDF

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Publication number
WO2018235866A1
WO2018235866A1 PCT/JP2018/023457 JP2018023457W WO2018235866A1 WO 2018235866 A1 WO2018235866 A1 WO 2018235866A1 JP 2018023457 W JP2018023457 W JP 2018023457W WO 2018235866 A1 WO2018235866 A1 WO 2018235866A1
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WO
WIPO (PCT)
Prior art keywords
hot air
discharge port
melt
resin
molten
Prior art date
Application number
PCT/JP2018/023457
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English (en)
French (fr)
Japanese (ja)
Inventor
池ヶ谷　守彦
孝嗣 越前谷
曽田　浩義
Original Assignee
エム・テックス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by エム・テックス株式会社 filed Critical エム・テックス株式会社
Priority to CN201880054273.0A priority Critical patent/CN111542652A/zh
Priority to US16/625,439 priority patent/US20210317600A1/en
Priority to RU2020102026A priority patent/RU2020102026A/ru
Priority to JP2019525662A priority patent/JPWO2018235866A1/ja
Priority to KR1020207001800A priority patent/KR20200042460A/ko
Priority to SG11202105386VA priority patent/SG11202105386VA/en
Priority to CA3104610A priority patent/CA3104610A1/en
Priority to AU2018289746A priority patent/AU2018289746A1/en
Priority to EP18820101.6A priority patent/EP3670712A4/en
Publication of WO2018235866A1 publication Critical patent/WO2018235866A1/ja
Priority to ZA2019/08535A priority patent/ZA201908535B/en

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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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing
    • 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/025—Melt-blowing or solution-blowing dies
    • 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
    • D01D5/04—Dry spinning methods
    • 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
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • 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
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • 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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/32—Side-by-side structure; Spinnerette packs therefor

Definitions

  • the present invention relates to a discharge nozzle for a nanofiber manufacturing apparatus that manufactures fine fibers, and a nanofiber manufacturing apparatus equipped with the discharge nozzle.
  • Nanofibers are used in various fields by taking advantage of the characteristics of fine fibers.
  • there has been a demand for the production of nanofibers such as non-woven fabrics with ultrafine fibers, in which fibers of various diameters and lengths according to the application are intricately intertwined.
  • Techniques for producing fine fibers are disclosed, for example, in Patent Documents 1 and 2.
  • the microfiber manufacturing apparatus disclosed in Patent Literatures 1 and 2 includes substantially the same melt-blowing die.
  • This ultrafine fiber manufacturing apparatus comprises one or more liquid nozzles capable of discharging a heated molten resin (Patent Document 1) or a polymer solution in which a raw material polymer is dissolved in a solvent (molten resin discharged from the liquid nozzle) Alternatively, the polymer solution is provided with one or more hot air nozzles for blowing hot air and stretching it in a fibrous form.
  • Patent Documents 1 and 2 it is disclosed that a molten resin is stably spun into fine fibers with a small amount of hot air gas by an ultrafine fiber manufacturing apparatus.
  • Patent No. 5946569 gazette
  • Patent No. 5946565 gazette
  • the apparatus for producing microfibers described in Patent Documents 1 and 2 can not appropriately change the diameter and inclination of the liquid nozzle and the hot air nozzle accordingly, for example, when it is intended to produce fibers with different fiber diameters. .
  • An object of the present invention is to provide a discharge nozzle for a nanofiber manufacturing apparatus, and a nanofiber manufacturing apparatus including the discharge nozzle.
  • the discharge nozzle attached to the nanofiber manufacturing apparatus of the present invention discharges the molten / melted resin discharged from the molten / melted resin discharge port so as to be induced by the hot air discharged from the hot air discharge port to melt / melt the molten resin
  • a discharge nozzle attached to a nanofiber manufacturing apparatus for forming a fine fiber by drawing in a fibrous form comprising: It is characterized by having a split type nozzle unit which can be divided into a plurality of units, in which a melting / melting resin discharge port and a hot air discharge port are formed.
  • the discharge nozzle attached to the nanofiber manufacturing apparatus of the present invention is characterized in that the split type nozzle unit can be split such that at least one of the melt / melt resin flow channel and the hot air flow channel is divided into a plurality. I assume.
  • the discharge nozzle attached to the nanofiber manufacturing apparatus of the present invention maintains the airtightness of the divided joint at the divided joint of the divided nozzle unit, and the temperature of the hot air used and the characteristics of the molten / melted resin It is characterized in that a seal plate such as a packing structure made of metal or special material excellent in heat resistance, pressure resistance and chemical resistance is interposed.
  • the split-type nozzle unit comprises the first to fourth nozzle units, and the melting / melting resin inflow unit as the first nozzle unit, and the second nozzle A hot air inflow unit as a unit, a resin / hot air introduction unit as a third nozzle unit, and a discharge unit as a fourth nozzle unit are characterized.
  • the discharge nozzle attached to the nanofiber manufacturing apparatus of the present invention discharges the molten / melted resin discharged from the molten / melted resin discharge port so as to be induced by the hot air discharged from the hot air discharge port to melt / melt the molten resin
  • a discharge nozzle attached to a nanofiber manufacturing apparatus for forming a fine fiber by drawing in a fibrous form comprising: It has a split nozzle unit that can be split into multiple units, The hot air discharge port is formed as a single rectangular slit-like hot air discharge port on the front wall surface of the split-type nozzle unit,
  • the melt / melt resin discharge port is a melt / melt resin discharge port group including a plurality of discharge ports arranged in a straight line, and the melt / melt resin discharge port group is formed on the front wall surface of the divided nozzle unit.
  • the molten and melted resin discharge port group is disposed along the longitudinal direction of the hot air discharge port.
  • the nanofiber manufacturing apparatus of the present invention discharges the molten / melted resin discharged from the molten / melted resin discharge port so as to be induced by the hot air discharged from the hot air discharge port, and stretches the melted / melted resin into a fiber shape
  • a nanofiber manufacturing apparatus for forming fine fibers A discharge nozzle having a split nozzle unit which can be divided into a plurality of units;
  • the hot air discharge port is formed as a single rectangular slit-like hot air discharge port on the front wall surface of the split-type nozzle unit,
  • the melt / melt resin discharge port is a melt / melt resin discharge port group consisting of a plurality of discharge ports arranged in a straight line, and the melt / melt resin discharge port group consisting of the plurality is in front of the divided nozzle unit. Formed on the wall of the The molten and melted resin discharge port group is disposed along the longitudinal direction of the hot air discharge port.
  • the discharge nozzle is configured to be divisible into a plurality of units. Since it did in this way, when manufacturing the nanofiber of the fiber diameter according to a request, it is possible to divide
  • hot air is blown out from a hot air discharge port formed as one slit, and melt / melted resin discharge port group consisting of a plurality of discharge ports arranged in a straight line with respect to it. Dissolve the molten resin simultaneously. Since it did in this way, blowout of fusion
  • dissolution resin discharge port can be optimized with respect to a hot air. As a result, it is possible to suppress the unevenness in quality of the molded fibers, and to obtain high-quality nanofibers.
  • the divided nozzle units can be easily assembled integrally by means of fixing means such as bolts. Therefore, the time of complicated assembly and disassembly work can be shortened, and the cost of the manufactured fiber can be suppressed at a low cost.
  • FIG. 2 is an enlarged front view of the split-type nozzle of FIG. 1, showing an enlarged part of FIG. 1 represented by an alternate long and short dash line. It is a longitudinal cross-sectional view of the split-type nozzle of FIG. It is a longitudinal cross-sectional view of the split-type nozzle attached to the nanofiber manufacturing apparatus as another Example of this invention.
  • FIG. 5 is a cross-sectional view along a hot air flow path formed in a split-type nozzle attached to a nanofiber manufacturing apparatus as one embodiment of the present invention, and is an example of a cross-sectional view along line AA in FIG. 3 and FIG. FIG.
  • FIG. 5 is a cross-sectional view along a solution flow path formed in a split-type nozzle attached to a nanofiber manufacturing apparatus as one embodiment of the present invention, and is an example of a cross-sectional view taken along line BB in FIGS. 3 and 4; It is a principal part longitudinal cross-sectional view of the 4th nozzle unit which comprises the split type nozzle attached to the nanofiber manufacturing device as one example of the present invention. It is the schematic which shows the positional relationship of the fusion
  • the configuration of the split-type discharge nozzle 2 attached to the nanofiber manufacturing apparatus 1 of the present embodiment will be described based on FIGS. 1 to 9.
  • the nanofiber manufacturing apparatus 1 discharges the molten / melted resin discharged from the molten / melted resin discharge port 9 so as to be induced by the hot air discharged from the hot air discharge port 11, and stretches the melted / melted resin into a fiber shape To form fine fibers.
  • the nanofiber manufacturing apparatus 1 to which the discharge nozzle 2 in this embodiment is attached blows hot air against a molten resin to be discharged or a resin dissolved in a solvent (referred to as “melt / melt resin” in the present invention)
  • the molten / melted resin is drawn into an ultrafine diameter long fiber to produce an ultrafine diameter long fiber.
  • the discharge nozzle 2 for discharging the molten / melted resin attached to the nanofiber manufacturing apparatus 1 is a molten / melted resin supply device 3 (not shown in detail) for introducing a resin melted in a heated / melted resin or a solvent, and a hot air
  • the hot air supply device 4 (not shown in detail) for introducing the
  • the discharge nozzle 2 has a split nozzle unit 6.
  • the split nozzle unit 6 can be split into first to fourth nozzle units 6a to 6d.
  • the first to fourth nozzle units 6a to 6d are arranged in order from the right side to the left side in FIGS. 3 and 4.
  • a seal plate 7 for maintaining air tightness is provided at divided joint portions which are adjacent portions of the first to fourth nozzle units 6a to 6d. That is, between the first nozzle unit 6a and the second nozzle unit 6b, between the second nozzle unit 6b and the third nozzle unit 6c, and between the third nozzle unit 6c and the fourth nozzle unit.
  • the seal plate 7 is sandwiched between the two.
  • the seal plate 7 is made of a metal or a special material excellent in heat resistance, pressure resistance and chemical resistance in accordance with the temperature of the hot air to be used and the characteristics of the molten / melted resin.
  • the first to fourth nozzle units 6a to 6d divided into four are integrated by fixing means 8 such as bolts passing through the whole.
  • the split type nozzle unit 6 can be split so as to divide the melt / melt resin flow channel 10 and the hot air flow channel 12 into a plurality of each (in FIG. 3 and FIG. Are divided in the left and right direction).
  • the split nozzle unit 6 may be configured to be split such that only one of the melt / melt resin flow channel 10 and the hot air flow channel 12 is split.
  • the number of divisions of the divided nozzle unit 6 of the present embodiment is four.
  • the number of divisions is determined according to the embodiment, for example, the division type nozzle unit 6 is divided according to the ease of processing of the melt / melt resin flow channel 10 and the hot air flow channel 12 and the function of the division type nozzle unit 6. It is Further, in the present embodiment, a plurality of nozzle units are coupled by fixing means 8 such as bolts shown in the figure. Besides the above, according to the configuration of each nozzle unit and the embodiment thereof, fixing means (not shown) provided on the outer periphery of each nozzle unit may be used instead of the form penetrating the whole.
  • the discharge nozzle 2 is not illustrated in detail, it may be divided into, for example, two in the upper and lower portions depending on the ease of processing of the melt / melt resin flow channel 10 or the hot air flow channel 12 inside (FIG. 3 and FIG. 4). And the nozzle units may be divided in the vertical direction). In such a configuration, for example, the upper and lower two parts are integrally tightened by the (band type) unit heater 5 and the bolt for each nozzle unit provided with the clamping means (not shown). It is also good.
  • the split-type nozzle unit 6 includes a melting / melting resin inflow unit 6a as a first nozzle unit, a hot air inflow unit 6b as a second nozzle unit, and a resin / hot air introduction unit 6c as a third nozzle unit. And a discharge unit 6d as a fourth nozzle unit.
  • melt / melt resin flow channels 10 melt / melt resin flow channels 10a to 10d
  • the molten / dissolved resin discharge port located downstream of the fourth nozzle unit (ejection unit) 6 d through the molten / dissolved resin flow channel 10 is supplied with the molten / dissolved resin supply device 3.
  • Send to 9 The melt / melt resin discharge port 9 is provided continuously to the downstream end of the melt / melt resin flow path 10.
  • the melting / melting resin flow path 10 is formed to be continuous from the first nozzle unit 6a to the fourth nozzle unit 6d.
  • the melted / melted resin discharge port 9 of the fourth nozzle unit 6d is formed in a circular shape having a very small diameter on the discharge side.
  • the diameter of the molten / melted resin discharge port 9 is determined in accordance with the specification of the extremely fine fiber shape (for example, the fiber diameter) to be manufactured. As shown in FIG. 2, the molten / melted resin discharge port 9 has a plurality of discharge ports 9-1 to 9-12 aligned in a straight line along the longitudinal direction of the slit-like hot air discharge port 11 described later (shown in FIG.
  • a discharge port group (hereinafter referred to as “melt / melt resin discharge port groups 9-1 to 9-12”) consisting of 12 discharge ports).
  • the molten and melted resin discharge port groups 9-1 to 9-12 are arranged in a straight line in the horizontal direction on the inclined surface 22 provided on the front wall surface 6e of the split-type nozzle unit 6 (FIG. 1).
  • the inclined surface 22 will be described later.
  • the molten / dissolved resin flow channel 10 is formed as a single flow channel 10 a in the first nozzle unit 6 a positioned on the most upstream side of the split-type nozzle unit 6.
  • the melted / melted resin flow channel 10 is divided into a plurality of (four in the embodiment) flow channels 10b ... and flow channels 10c ... in the second nozzle unit 6b and the third nozzle unit 6c. ing.
  • the melt / melt resin flow channel 10 is joined again to one flow channel 10d, and then a large number (12 in the example) of flow channels (melt / melt resin discharge) It is divided into exit groups 9-1 to 9-12).
  • the melted / melted resin discharge ports 9 (melted / melted resin discharge port groups 9-1 to 9-12) formed in the fourth nozzle unit 6d are opened (opened) in the normal direction of the inclined surface 22. ing.
  • the hot air flow path 12 is formed in the second nozzle unit 6b to the fourth nozzle unit 6d.
  • the hot air flow path 12 sends the hot air supplied from the hot air supply device 4 to the hot air discharge port 11 located on the downstream side of the fourth nozzle unit 6 d.
  • the hot air flow passage 12 may be directed obliquely upward from the air reservoir portion 14 having a large volume toward one horizontally-long rectangular slit-like hot air discharge port 11 (FIG. 3), or from the air reservoir portion 14 It may be guided horizontally toward the slit-like hot air discharge port 11 (FIG. 4).
  • the hot air flow passage 12 is continuously formed from the second nozzle unit 6b to the fourth nozzle unit 6d.
  • the hot air supply device 4 supplies hot air to the second nozzle unit 6 b via the hot air inlet 18.
  • the second nozzle unit 6 b includes an air reservoir portion 14 having a predetermined large volume in order to suppress rapid pressure fluctuations in the hot air flow path 12.
  • the hot air flow path 12 is divided into 12 (hot air flow paths 12-1 to 12-12). Therefore, the sent hot air is branched into a plurality of equally relatively in the third nozzle unit 6c.
  • the hot air flow path is indicated by reference numeral 12c, and is divided into 12 (hot air flow paths 12-1 to 12-12).
  • the fourth nozzle unit 6 d is not provided with a partition or the like in the hot air flow passage 12, and the hot air flow passage 12 (12-1 to 12-1 separated by the third nozzle unit 6 c
  • One hot air passage space 12d communicating with 12-12) is formed. That is, as shown in FIG. 6, one rectangular parallelepiped hot air path space 12d is formed.
  • the hot air passage space 12d is formed as a long straight straight rectangular slit-like hot air discharge port 11 with respect to the front of the apparatus, and the hot air passage space 12d is an upstream end of the fourth nozzle unit 6d. To the downstream end (hot-air outlet 11 located on the front wall of the apparatus).
  • the hot air discharge port 11 is provided continuously to the downstream end of the hot air flow path 12.
  • a large number of partitions 15 for straightening the hot air and a hot air passage space 12d for collecting the hot air rectified by them are formed. That is, instead of providing one hot air discharge port for one resin discharge port, one horizontally long slit-like hot air discharge port is provided for a plurality of resin discharge ports. As a result, a uniform hot air discharge flow is formed with respect to the resin discharged from the plurality of resin discharge ports, so that uniform nanofibers can be manufactured over the entire length of the horizontally long slit.
  • the slit-shaped hot air discharge port 11 discharge port of one hot air path space 12 d
  • the third nozzle Although a plurality of partition walls 15 are formed in the unit 6c, a configuration as shown in the modification of FIG. 9 may be employed.
  • the partition 15 is extended and installed to the middle part of the 4th nozzle unit 6d from the 3rd nozzle unit 6c.
  • the hot air passage space 12d is formed from the middle portion of the fourth nozzle unit 6d to the downstream end (a slit-like hot air discharge port 11 on the wall surface), and one horizontally long hot air passage space 12d is a device
  • the front low vertical surface 20 is open.
  • the front wall surface 6 e of the fourth nozzle unit 6 d has a low vertical surface 20 and a high vertical surface 21 parallel to each other.
  • the high vertical surface 21 is disposed forward with respect to the low vertical surface 20 (displaced forward).
  • the low vertical surface 20 and the high vertical surface 21 are connected by the inclined surface 22.
  • the inclined surface 22 is inclined with respect to the low vertical surface 20 and the high vertical surface 21.
  • a single rectangular slit-shaped hot air discharge port 11 is formed on the low vertical surface 20, and the molten / melted resin discharge port group 9-1 facing the normal direction of the inclined surface 22 is formed on the inclined surface 22.
  • 9-12 (12 in this embodiment) are formed. Therefore, by adjusting the inclination angle of the inclined surface 22, the discharge direction (discharge angle) of the melted / melted resin with respect to the discharged hot air is changed. That is, by preparing a plurality of nozzle units in which the inclination angle of the inclined surface 22 is different, a nozzle unit having an inclination angle (an angle at which the molten resin and the hot air intersect with each other) according to the desired fiber diameter etc. Can be selected.
  • nozzle units having different diameters and numbers of molten / melted resin discharge port groups 9-1 to 9-12 and nozzle units having different configurations (such as the shape and the number of partition walls 15) of the hot air discharge port 11 May be selected.
  • the molten / melted resin discharge port 9 and the hot air discharge port 11 are disposed at extremely close positions.
  • the circular melt / melt resin discharge port 9 is formed in a direction (normal direction) orthogonal to the inclined surface 22.
  • a drill is applied so as to be orthogonal to the inclined surface 22. Because the drill does not slip. Therefore, the molten and melted resin discharge port 9 can be formed into a circular shape with high accuracy even by processing such as a drill. Therefore, the melt / melt resin discharge port 9 with a small diameter can be formed with high precision.
  • FIG. 8 is a schematic view showing a positional relationship between a molten / melted resin discharge port and a hot air discharge port formed in a split-type nozzle attached to a nanofiber manufacturing apparatus as one embodiment of the present invention.
  • a fourth nozzle unit (discharge unit) 6d of the discharge nozzle 2 of the present embodiment shown in FIG. 8 is a group of melt / melt resin discharge ports 9-1 consisting of 12 discharge ports through which the melt / melt resin is discharged.
  • a slit-like hot air discharge port 11 for discharging hot air is formed to 9-12.
  • eleven partitions 15 are provided in the third nozzle unit (resin / hot air introduction unit) 6c. Therefore, in the present embodiment, the number of the melt / melt resin discharge ports 9 (melt / melt resin discharge port groups 9-1 to 9-12) and the number of the hot air flow paths 12 (12-1 to 12-12) are different. They coincide with each other, and correspond to each other in the ejection direction (left and right direction in FIG.
  • melt / melt resin discharge ports 9 melt / melt resin discharge port groups 9-1 to 9-12
  • the number of the hot air flow paths 12 (12-1 to 12-13) do not have to be the same. For example, assuming that the number of the melt / melt resin discharge ports 9 is 12 and the number of the hot air flow paths 12 in the third nozzle unit 6c is 13, they are mutually offset in the direction orthogonal to the discharge direction (vertical direction in FIG. 8) It may be arranged.
  • the melting / melting that is discharged from the molten / dissolved resin discharge port group 9-1 to 9-12 composed of a plurality of discharge ports It is possible to provide the nanofiber manufacturing apparatus 1 in which the resin is discharged into hot air discharged from a single slit-like hot air discharge port 11 and the molten / melted resin is drawn into a fibrous form.
  • the discharge nozzle 2 of the present embodiment includes a melt / melt resin discharge port 9 for discharging a melt / melt resin, and the melt / melt resin discharge port 9 (melt / melt resin discharge port group 9-1 to 9- 12) A split in which a molten / melted resin flow path 10 for sending out a molten / melted resin, a hot air discharge port 11 for discharging hot air, and a hot air flow path 12 for sending hot air to the hot air discharge port 11
  • the die nozzle unit 6 is provided.
  • the nanofiber manufacturing apparatus 1 of the present embodiment includes a melting / dissolving resin supply device 3 for introducing a melting / dissolving resin into the melting / dissolving resin flow path 10 provided in the split-type nozzle unit 6, and the split-type nozzle unit 6
  • the hot air supply device 4 for introducing hot air into the hot air flow path 12 provided in the apparatus is provided, and the split-type nozzle unit 6 is configured to be divisible into first to fourth nozzle units 6a to 6d.
  • the split-type nozzle unit 6 is split such that the melt / melt resin flow channel 10 and the hot air flow channel 12 are each divided into a plurality.
  • a plurality of different nozzle units applicable to various fiber specifications can be provided in advance, and part of the nozzle units can be easily replaced according to the fiber specifications.
  • the fourth nozzle unit 6d in which the melting / dissolving resin discharge port 9 and the hot air discharge port 11 are formed is taken out, and melting corresponding to the changed fiber specification
  • the fourth nozzle unit 6d in which the melted resin discharge port 9 and the hot air discharge port 11 are formed can be easily replaced. Therefore, it is possible to achieve excellent workability at the time of desired nanofiber production, to shorten the working time, and to efficiently provide fine fibers for achieving cost reduction, a nonwoven fabric made of the fibers, etc. It becomes possible.
  • molten / dissolved resin discharge port groups 9-1 to 9-12 consisting of a plurality of discharge ports are formed, and resin is discharged from the plurality of discharge ports to extend horizontally. Hot air is blown out from the hot air discharge port 11 formed as a single slit disposed. Since this is done, it is possible to equalize the amount of hot air blown out to the molten / melted resin discharged from the molten / melted resin discharge port groups 9-1 to 9-12. As a result, it is possible to suppress the unevenness in quality of the molded fibers, and to obtain high quality fibers.
  • the divided first to fourth nozzle units 6a to 6d can be easily and integrally assembled by the fixing means 8 made of bolts or the like, the time for complicated assembly and disassembly can be shortened. As a result, the cost of the fiber produced can be kept low.
  • melt / melt resin flow channel 10 and the hot air flow channel 12 are formed in each of the first to fourth nozzle units 6a to 6d which can be divided into four, but these melt / melt resin flow
  • the portion in which the passage 10 and the hot air flow passage 12 are formed may be further divided. Of course, the number of division units may be reduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
PCT/JP2018/023457 2017-06-21 2018-06-20 ナノファイバー製造装置用の吐出ノズル、及び吐出ノズルを備えたナノファイバー製造装置 WO2018235866A1 (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CN201880054273.0A CN111542652A (zh) 2017-06-21 2018-06-20 纳米纤维制造装置用的排出喷嘴以及具有排出喷嘴的纳米纤维制造装置
US16/625,439 US20210317600A1 (en) 2017-06-21 2018-06-20 Discharge nozzle for nano fiber manufacturing device and nano fiber manufacturing device provided with discharge nozzle
RU2020102026A RU2020102026A (ru) 2017-06-21 2018-06-20 Выпускное сопло устройства для производства нановолокна и устройство для производства нановолокна, включающее выпускное сопло
JP2019525662A JPWO2018235866A1 (ja) 2017-06-21 2018-06-20 ナノファイバー製造装置用の吐出ノズル、及び吐出ノズルを備えたナノファイバー製造装置
KR1020207001800A KR20200042460A (ko) 2017-06-21 2018-06-20 나노 파이버 제조 장치용 토출 노즐, 및 토출 노즐을 구비한 나노 파이버 제조 장치
SG11202105386VA SG11202105386VA (en) 2017-06-21 2018-06-20 Discharge nozzle for nanofiber production apparatuses and nanofiber production apparatus including discharge nozzle
CA3104610A CA3104610A1 (en) 2017-06-21 2018-06-20 Discharge nozzle for nanofiber production apparatuses and nanofiber production apparatus including discharge nozzle
AU2018289746A AU2018289746A1 (en) 2017-06-21 2018-06-20 Discharge nozzle for nano fiber manufacturing device and nano fiber manufacturing device provided with discharge nozzle
EP18820101.6A EP3670712A4 (en) 2017-06-21 2018-06-20 EXHAUST NOZZLE FOR A NANO FIBER PRODUCTION DEVICE AND NANO FIBER PRODUCTION DEVICE WITH AN EXHAUST NOZZLE
ZA2019/08535A ZA201908535B (en) 2017-06-21 2019-12-20 Discharge nozzle for nano fiber manufacturing device and nano fiber manufacturing device provided with discharge nozzle

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RU2020102026A (ru) 2021-07-21
AU2018289746A1 (en) 2020-02-13
EP3670712A1 (en) 2020-06-24
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CN111542652A (zh) 2020-08-14
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ZA201908535B (en) 2021-05-26
RU2020102026A3 (zh) 2021-10-22

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