CN106435768A - Spinneret and ultrafine fiber manufacturing apparatus - Google Patents
Spinneret and ultrafine fiber manufacturing apparatus Download PDFInfo
- Publication number
- CN106435768A CN106435768A CN201610440912.XA CN201610440912A CN106435768A CN 106435768 A CN106435768 A CN 106435768A CN 201610440912 A CN201610440912 A CN 201610440912A CN 106435768 A CN106435768 A CN 106435768A
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- China
- Prior art keywords
- nozzle
- spinneret die
- spinneret
- fluid injector
- hot gas
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Classifications
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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
- D01D4/025—Melt-blowing or solution-blowing dies
Abstract
The invention relates to a spinneret and an ultrafine fiber manufacturing apparatus capable of stably spinning a polymer into fine fibers even with a small amount of hot air gas, without using a high voltage, easily reducing the size and weight, and suppressing the manufacturing cost. Inside the spinneret, at least one solution nozzles capable of discharging a polymer solution obtained by dissolving a raw polymer in a solvent, hot air is blown to a polymer solution discharged from the solution nozzle, and stretched in a fibrous state. One or more hot air nozzles are formed. The hot air nozzle and the solution nozzle are arranged close to each other so that the blowing direction of the hot air nozzle and the discharging direction of the solution nozzle intersect below the base lower surface to form intersected configuration.
Description
Technical field
The present invention is spinneret die and the superfine fibre device being produced using this die head.
Background technology
Typically diameter, the microfibre below 1 μm is defined as nanofiber, for manufacturing this superfine fibre
ESD（electric spray deposition）Preparation method has been popular known.
This ESD preparation method is that high molecular polymer is added the macromolecule polymer solution after dissolving in solvent in high voltage
In the presence of manufacturing fiber.I.e. fluid injector sprays polymer solution, by the DC high voltage between nozzle and collection port
In the presence of, solvent flash evapn in the macromolecular solution of ejection, and forming superfine fibre layer under the stretching of Coulomb force
It is piled up at collection.（Referenced patent file 1）
This ESD preparation method is arranged it is therefore desirable to make the correlation preventing solvent from volatilizing initiation fire because need use high-tension electricity,
Operationally cumbersome.
Nanofiber preparation method described in patent document 2 is, without high-tension electricity, directly to pass through shower nozzle spray webbing of weaving, to spin
The nozzle of silk die head is circle center, round a kind of Nanowire of the ring-shaped high speed air outlet with this discharge center as concentric shafts
Dimension manufacture method.
【Look-ahead technique file】
【Patent document 1】Japanese Unexamined Patent Publication 2012-127008 publication；
【Patent document 2】Japanese Unexamined Patent Publication 2013-185273 publication；
As above the construction described in patent document 1, prevents cumbersome in the operation caught fire.
And patent document 2 does not adopt the construction of high-tension electricity, patent document 1 can be solved the problems, such as.But told with macromolecule
Centered on outlet, around round the construction of the high-speed gas blow-off outlet for stretching high polymer fiber, high-speed gas
The bore of blow-off outlet is big, needs a large amount of hot gas, so can cause the spinning comprising liquid discharge opening and high speed blowing mouth again
The unitary construction of silk die head maximizes, the new problem of complication.
Content of the invention
So, the present invention, in view of problem above, provides and does not use high-tension electricity, leads to too small amount of hot blast and also can will spue
Macromolecule polymer solution stabilizes the stretching the same superfine fibre of nanofibers, reaches mold small simultaneously, lightweight,
It is easy to reduce the cost of spinning die head and superfine fibre manufacture device cost.
In order to achieve the above object, technical scheme is as follows：
Spinneret die, has more than 1 the fluid injector of the polymer solution dissolving in a solvent that can spue and corresponds to therewith
The hot gas shower nozzle for extending solution of more than 1 hot gas nozzle, hot gas nozzle is close with fluid injector, steam
The gas emission direction of body nozzle and the emission direction of fluid injector are in the die head feature intersected formed below.This construction can
Even to make a small amount of hot gas, also can be by the spray webbing mould of stretched for stretchable macromolecular solution stable superfine fibre
Head and superfine fibre manufacture device.Meanwhile, the fluid injector of solution and the hot gas nozzle of hot blast in spinneret die
Occupancy occupies a narrow space, and can increase the fluid injector of spinneret die and the configuration degree of freedom of hot gas nozzle.
Beneficial effects of the present invention are：
Using the present invention, the macromolecule polymer solution after dissolving stably can be carried out being spun to Nanowire with a small amount of hot gas
The same superfine fibre of dimension, you can to reduce the usage amount of hot blast.Space occupied by the nozzle of fluid injector and hot gas
Little, can configure multigroup such nozzle in mould, can reach the miniaturization of mould, lightweight, to reach the mesh of manufacturing cost reduction
's.
Brief description
【Fig. 1】The sectional drawing of spinneret die of the present invention the 1st embodiment and matched superfine fibre manufacture device
Pattern.
【Fig. 2】The plane graph of spinneret die shown in Fig. 1.
【Fig. 3】The spinneret die sectional drawing of the embodiment according to the present invention the 2nd.
【Fig. 4】The spinneret die sectional drawing of the embodiment according to the present invention the 3rd.
【Fig. 5】The plane graph of spinneret die shown in Fig. 4.
【Fig. 6】The spray webbing plane graph of the embodiment according to the present invention the 4th.
【Fig. 7】The spray webbing plane graph of the embodiment according to the present invention the 5th.
【Fig. 8】The spray webbing profile along line A-A of Fig. 7.
【Fig. 9】The spray webbing plane graph of the embodiment according to the present invention the 6th.
【Figure 10】Oblique view using Fig. 7 die head superfine fibre manufacture device.
【Figure 11】Oblique view using Fig. 9 die head superfine fibre manufacture device.
Specific embodiment
1st embodiment
See figures.1.and.2, the spinneret die 20 and superfine fibre manufacture device of the 1st embodiment is illustrated.
As shown in figure 1, superfine fibre manufacture device is by the liquid offer device 200 providing macromolecule polymer solution and heat
The gas generator 300 and macromolecule polymer solution out from high molecular polymer offer device 200 is drawn into threadiness
Spinneret die 20 constitute.
As shown in Figures 1 and 2, spinneret die 20 is spued by macromolecular solution fluid injector 22 and the heat of blowout hot gas
Gas nozzle 24 is constituted.
Fluid injector 22 and hot gas nozzle 24, respectively have a columnar hollow body of certain section, mutually connect
Nearly placement.And, the central shaft O with fluid injector 22RCentral shaft O with hot gas nozzle 24GAt grade, spray webbing
In die head 20, central shaft ORInclination, central shaft ORExtended line and central shaft OGExtended line in front of spinneret die 20a
Above at angle theta at point X1Intersecting.
Even if above-mentioned construction hot gas nozzle 24 a small amount of hot gas out, height that can also be by fluid injector 22 out
The stretching of Molecularly Imprinted Polymer moment is frozen into the superfine fibre of nanofiber pole.
Fluid injector 22 is the outlet of the high molecular polymer liquid that can spue, and does not limit section present situation, for example round
Shape, oval, tetragon, the polygon such as hexagon also can use.Consider to be easy to homogeneous processing, using circle preferably.
Fluid injector 22 section, according to the species of fluent material, temperature, selects suitable size simultaneously.Circular occasion,
Diameter can using 0.1mm to 1.0mm preferably, and 0.2mm to 0.5mm is more preferable.
The gas discharge opening of hot gas nozzle 24, as long as hot gas can be sprayed, does not have special limit to the shape of section
Calmly, for example, the various shapes such as circle, oval, tetragon, the polygon such as hexagon, and the bending flute profile of tetragon.
Meanwhile, the section size of hot gas nozzle 24 carries out selecting suitable size according to the species of melting resin and temperature.
During using circle, diameter can using 0.2mm to 3.0mm preferably, and 0.5mm to 1.5mm is more preferable.
Fluid injector 22 and hot gas nozzle 24, configuration close to each other, both sides are arranged in the following 20a of spinneret die,
Short distance t1For 0.1mm to 5mm, 1mm to 4.5mm preferably, 2mm to 4mm preferably.Discontented 0.1mm's
In the case of, it is too close to processing difficulties.Superfine fibre wire-drawing effect more than 5mm is bad.
Fig. 1, central shaft ORExtended line and central shaft OGExtended line constitute angle, θ1, select 0 degree to 30 degree, 0 degree is arrived
25 degree preferably, 5 degree to 20 degree more preferably.More than 30 degree, hot blast out can not stretch superfine fibre well.Angle, θ1Close
In the case of 0 degree, below the point X shown in Fig. 1 and die head, the distance of 20a becomes big, and this situation also can be molten by high molecular polymer
Liquid is drawn into the microfibres such as nanofiber.
In spinneret die 20 shown in Fig. 1, fluid injector 22 tilts to put, and can also tilt hot gas nozzle 24 on the contrary
Put, or both tilt and also may be used.Above-mentioned situation, central shaft ORExtended line and central shaft OGExtended line constitute angle
Degree θ1Within 30 degree preferably.
2nd embodiment
With reference to Fig. 3, the spinneret die 30 of the embodiment to the 2nd explains.
As shown in figure 3, in spinneret die 30, the upside of fluid injector 32, make relative liquid nozzle 32 section more
The fluid preservation portion 32b of big center cavity, generally processes fluid injector 32, such as requires to process the metal running through very thick
Die head and require diameter in 0.5mm about such Small Holes, be extremely difficult.There is the such design of 32b, it is possible to reduce little
The processing thickness of boreliquid nozzle, simultaneously facilitates the circulation of liquid.
As shown in figure 3, the hollow bulb 32b compared with big cross section, the upper lateral part of hot gas nozzle are made in the upside of fluid injector 32
Such shape, the hollow bulb not insertion of the hollow bulb of liquid and hot blast can also be made.
3rd embodiment
With reference to Fig. 4 and Fig. 5, the spinneret die 40 of the 3rd embodiment is illustrated.
As shown in Figures 4 and 5, the inside of spinneret die 40 by the solution that spues fluid injector 42 and blowout hot gas heat
Gas nozzle 44 forms.
The fluid injector 42 of the spinneret die 40 shown in figure is made as inclination.
Hot gas nozzle 44, at the place of 40a below the spinneret die, some is in trumpet-shaped part 44a.
This structure, even a small amount of hot gas out from hot gas nozzle 44 can be allowed, by fluid injector 42 out
Solution in the presence of the gas blowing out along hot gas nozzle 44a, moment stretches and solidifies fiber fines thus being received
The superfine fibres such as rice fiber.
For flare 44a, it is not necessarily intended to all to be designed to the exit of hot gas shower nozzle 44 horn-like, as long as will lean on
Hot gas nozzle 44 at nearly fluid injector 42 designs with the shape of a horn.The section of hot gas nozzle 44 or fluid injector 42 is circle
In the case of shape, both diameters are identical preferably.
Meanwhile, the horn-like 44a in Fig. 4, the angle, θ that hot gas nozzle center axle and loudspeaker direction are crossed as2Make
35 degree preferably, within 25 degree preferably.Within 15 degree more preferably.More than 35 degree, horizontal hot blast gas can cause spin solution to stretch
Insufficient formation to microfibre impacts, and should not obtain the superfine fibres such as nanofiber.
Meanwhile, in Fig. 4 and Fig. 5, below spinneret die, horn shape 44a, the design with the outlet of fluid injector 42 is
Almost link together, simultaneously by angle, θ2It is made thin little and with fluid injector 42 outlet closely to design preferably.
As described above, in Fig. 4 and Fig. 5, the blowing portion of the hot gas nozzle of spinneret die use of the 1st embodiment is at least
Some flare shape, equally, is also suitable for the spinneret die of the 2nd embodiment.
4th embodiment
With reference to Fig. 6, the spinneret die 50 of the 4th kind of embodiment is illustrated.
As shown in fig. 6, on spinneret die 50, in diameter D1Circumference on be dispersed with multiple ejection high molecular polymerization thing liquids
The fluid injector 52 of body.And on respective fluid injector 52, it is equipped with the hot gas nozzle that diagram does not show, this hot gas sprays
Mouth close to fluid injector 52, the emission direction of the blow-off direction of hot gas nozzle and fluid injector 52 50a below spinneret die
Intersection formed below.This design, can allow a small amount of hot blast that respective hot gas nozzle sprays, will be by respective fluid injector
The high molecular polymer liquid of 52 discharges is drawn into the superfine fibre of nanofiber etc. under hot gas effect, so has non-
The production performance of Chang Youyue.Meanwhile, the configuration of hot-air shower nozzle freely can be changed according to the viscosity difference of various materials, favorably
Arranged in high density in fluid jetting head.
The profile of spinneret die 50, section is not necessarily intended to circle, according to specific requirement or ellipse, tetragon,
The polygons such as hexagon.Consider from the convenience of spinneret die processing, circular more preferable.
As shown in fig. 6, fluid injector 52 configuration quantity circumferentially is 12, the profile according to mould and product
Require to can configure greater number of fluid injector.
The spacing of the fluid injector 52 of adjacent connection here is 2mm-12mm, 3mm-10mm more preferably, less than 2mm adjacent too
Closely produce the interference to neighbouring fluid injector it is impossible to produce stable fiber fines, more than the then reduction productivity ratio of 12mm.
5th embodiment
With reference to Fig. 7 and Fig. 8, the spinneret die 60 of the 5th kind of embodiment is illustrated.
As shown in Figure 7, in the inside of spinneret die 60 fluid injector 62 in diameter D1Circumference on many places distribution.Steam
Body nozzle 64 is distributed in a diameter of D of the concentric circular at fluid injector 62 place2Circumference on, and each and fluid injector 62
Corresponding distribution.
This device, matched fluid jetting head 62 can be sprayed by a small amount of hot gas of respective hot gas nozzle blowout
The high molecular polymer liquid going out extends into substantial amounts of superfine nanofiber, has superior production performance.
In spinneret die 60, high molecular polymer liquid is from diameter D as shown in the figure1The spinneret die close to circumference
Longitudinal direction enter.The importing approach of hot gas is with diameter D2Longitudinal direction near circumference enters, and is respectively configured.Directly
Footpath D2Diameter group D1Little.
Such configuration, liquid and hot gas are respectively enterd with respective pipeline, can so be easy to spray webbing with simple separation
The processing of die head and the miniaturization of die head.
As Fig. 7 and Fig. 8, the blowing outlet of hot gas nozzle 64 is designed to horn-like 64a.So, the macromolecule of discharge
Liquid is more effectively drawn into super-micro-fine fibres under hot air acting.
Simultaneously, in Fig. 7 and the joining hot-air introducing port 300b of hot gas nozzle 64 is arranged on the side of spinneret die
Center, can be not provided with hot gas nozzle with the fluid injector of introducing port phase interference.State as will be avoided, can will lead
Also may be used in the opposition face of entrance 300b dislocation spinneret die bottom, i.e. spinneret die top.
In Fig. 7, the section of hot gas nozzle 64 is circular, oval, tetragon, the polygon such as hexagon.With
When, elongated tetragon is in diameter D2Circumference on be distributed when, circular arc can also.So situation, can prevent the ultra micro spuing
Fine fibre or liquid fly into diameter D2Circumference in.
The above in spinneret die 60, diameter D2It is diameter group D1Little frame mode.Contrary diameter D2It is diameter group
D1Big structure also can be similarly obtained microfibre.Similarly easily separated high molecular polymer is each passed through way with hot gas
Footpath.
5th embodiment
With reference to Fig. 9, the spinneret die 70 of the 6th kind of embodiment is illustrated.
Shown in Fig. 9, the fluid injector 72 of the multiple molten resin in inside of spinneret die 70 is in straight line I1On be uniformly distributed.And
Corresponding hot gas nozzle 74 is had on respective fluid injector 72.Hot gas nozzle is close with fluid injector 72, heat
The discharge direction of the blow-off direction of gas nozzle and fluid injector 72 is the lower section phase of the equidirectional following 70a in spinneret die
Hand over.The a small amount of hot gas so spraying from each fluid injector 74, the corresponding melting tree spuing from fluid injector 72 of stretching
Fat forms microfibre or even superfine fibre, has excellent productivity.Hot gas nozzle can be close according to fluid injector simultaneously
Degree freely configures, all highly advantageous from superfine fibre manufactures to adhesive-bonded fabric in extensive range.
Further, the profile section of spinneret die 70 may be readily formed as elongated dimetric shape, but does not specially limit.
The spacing of neighbouring fluid injector 72 is 2mm to 12mm, and 3mm to 10mm is more preferably, too near less than 2mm neighbor distance
Produce interference with adjoining nozzles and can not stablize spinning, production efficiency reduces very little more than 12mm fluid injector.
Figure 10 be using shown in Fig. 7 equipped with the superfine fibre manufacture device of multiple spinneret die 60.High molecular polymer
Liquid enters pipe arrangement 200a from liquid offer device and enters spinneret die 60 through liquid inlet port 200b, through multiple liquid
Nozzle 62 is drawn into fiber.Meanwhile, in hot blast generating means, the hot-air of blowout imports pipe arrangement 300a by hot blast and enters hot blast
Spray from hot gas nozzle 64 after road entrance 300b, then the macromolecular liquid moment that fluid injector 62 sprays be drawn into fine
Fiber is simultaneously solidified into superfine nanofiber.
As shown in Figure 10, laid mesh belt below spinneret die 60, the superfine nanofiber of miniaturization is in walking
Conveyer belt on be piled into superfine fibre layer.
It is 3 that spinneret die 60 in Figure 10 configures quantity on fabric width, and the raising of production efficiency can configure more spray
Silk die head quantity.
Multiple spinneret die 60 can provide the molten resin of one species resin material, in addition different spinneret die 60
Variety classes can be provided, what characteristic was different is dissolvable in water the high molecular polymer of solvent, form compound superfine fibre combination.
Figure 11 is the nanofiber assembling schematic diagram that Fig. 9 show using multiple spinneret die 70.Supply from macromolecular solution
To device macromolecular solution out, import pipe arrangement 210a through liquid inlet 210b to spinneret die 70 again from joining through liquid
Put in the fluid injector 72 of majority and spue.The hot blast that the hot blast generating means of another side generate simultaneously is from hot blast ingress pipe 310a warp
Cross hot blast introducing port 310b to spinneret die 70, then from most hot gas nozzle blowouts, so fluid injector 72 can be spued
High molecular polymer moment be drawn into microfibre, obtain superfine nanofiber.
As shown in figure 11, lay mesh belt below spinneret die 70, the nanofiber of miniaturization is in the biography walked
Send to pile up on band and form superfine fibre layer.
Furthermore, the spinneret die 70 in Figure 11 is provided with 3 on the direct of travel of conveyer belt, if necessary to improve life
Yield, also can arrange spinneret die number of units more.
Further, the high molecular polymer liquid of same raw material can be provided in the spinneret die 70 of plural number, also can give each
Spinneret die 70 provide variety classes, the different high molecular polymer liquid of characteristic, formed Composite nanofiber superfine
Fiber combinations.
【Symbol description】
20th, 30,40,50,60,70：Spinneret die
20a, 30a, 40a, 50a, 60a, 70a：Below spinneret die（Bottom surface）
22nd, 32,42,52,62,72：Fluid injector
24th, 34,44,64,74：Hot gas nozzle
32b：Fluid preservation portion
44a, 64a：The flare of hot blast shower nozzle
200：Macromolecule polymer solution offer device
200a, 210a：Liquid ingress pipe
200b：Liquid inlet port
300：Hot blast generating means
300a, 310a：Hot blast ingress pipe
300b：Hot blast introducing port.
Claims (6)
1. spinneret die, it is characterized by, the liquid of the high molecular polymer liquid that possessing more than 1 to spue dissolves in a solvent
Nozzle, and aforesaid liquid is stretched and the hot gas nozzle of corresponding with aforesaid liquid nozzle more than 1；Above-mentioned steam
Body nozzle is existed with the discharge direction of above-mentioned fluid injector close to aforesaid liquid nozzle, the above-mentioned blow-off direction of hot gas nozzle
The staggered form configuration formed below of spinneret die.
2. spinneret die as claimed in claim 1, it is characterized by, some one-tenth loudspeaker of the blowing portion of described hot gas nozzle
Shape.
3. spinneret die as claimed in claim 1 or 2, it is characterized by, have multiple in diameter D1Circumference on configuration upper
State fluid injector.
4. spinneret die as claimed in claim 3, it is characterized by, configuration with the having of the circumference of above-mentioned configuration fluid injector
A diameter of D in the same center of circle2Circumference on, D2Compare D1Little or big.
5. spinneret die as claimed in claim 1 or 2, it is characterized by, multiple fluid injectors linearly configure.
6. the spinneret die as described in claim 1-5, it is characterized by, the superfine fiber being produced using this melt-blown spinneret die
Manufacture device, while aforesaid liquid nozzle discharge high molecular polymer liquid, to the high molecular polymer liquid-mixing spuing
It is made to extend into fibrous resin fibre with the hot blast of above-mentioned hot-blast spray nozzle blowout.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP2015-126062 | 2015-06-23 | ||
| JP2015126062A JP5946565B1 (en) | 2015-06-23 | 2015-06-23 | Spinneret and ultrafine fiber manufacturing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN106435768A true CN106435768A (en) | 2017-02-22 |
Family
ID=56329461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610440912.XA Pending CN106435768A (en) | 2015-06-23 | 2016-06-20 | Spinneret and ultrafine fiber manufacturing apparatus |
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| JP (1) | JP5946565B1 (en) |
| CN (1) | CN106435768A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345318A (en) * | 2017-08-29 | 2017-11-14 | 中鸿纳米纤维技术丹阳有限公司 | A kind of shower head mechanism for the production of dissolvant type nanofiber |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6095089B1 (en) * | 2016-06-20 | 2017-03-15 | 紘邦 張本 | Melt blow cap, ultrafine fiber manufacturing apparatus using the same, and manufacturing method thereof |
| JP6964861B2 (en) * | 2017-05-22 | 2021-11-10 | エム・テックス株式会社 | Nanofiber manufacturing equipment and heads used for it |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5946565B1 (en) | 2016-07-06 |
| JP2017008450A (en) | 2017-01-12 |
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Application publication date: 20170222 |