CN106555277A - The device and method of composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning - Google Patents
The device and method of composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning Download PDFInfo
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- CN106555277A CN106555277A CN201611097432.4A CN201611097432A CN106555277A CN 106555277 A CN106555277 A CN 106555277A CN 201611097432 A CN201611097432 A CN 201611097432A CN 106555277 A CN106555277 A CN 106555277A
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- Prior art keywords
- melt
- electrostatic spinning
- blown
- fibre
- electret
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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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
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
- D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Filtering Materials (AREA)
Abstract
The device and method that melt-blown and electrostatic spinning prepares composite ultrafine fiber beam is the present invention relates to the use of, this device includes device for melt blowing, cooling beaming device, electrostatic spinning and electret device；Device for melt blowing is used to prepare melt-blown micro fibre, and cooling beaming device is arranged on below device for melt blowing, for being cooled down to the melt-blown micro fibre that device for melt blowing sprays and boundling；Electrostatic spinning and electret device are used to prepare electrostatic spinning superfine fibre, and electrostatic superfine fibre and melt-blown micro fibre compound and electret is processed, electret bundle of composite fibers is obtained.As the fibre bundle of the present invention is all made up of meltblown fibers and electrostatic spinning superfine fibre, fiber is micron order and nanoscale, specific surface area is very big, the air retained between fiber is more, heat-insulated, acoustically effective very well, can intercept various sizes of particle during Filtration Adsorption, and as meltblown fibers and electrostatic fibre are through electret process, in the case where filtration resistance is not increased, can be very good to the Filtration Adsorption efficiency of fine particles.
Description
Technical field
The present invention relates to fabric manufacturing area, and in particular to prepare composite ultrafine fiber beam using melt-blown and electrostatic spinning
Device and method.
Background technology
Melt-blown micro fibre is that thermoplastic process is melted under the injection of high speed hot blast, and extremely stretching forms melt-blown super
Fine fibre, but just because of the ultra-fine of it, cause its strength very low, it is impossible to be used alone, so greatly limit melt-blown
The use range of superfine fibre.Common device for melt blowing is after melt-blown micro fibre sprays to be directly laid down to form fusion spray cloth, nothing
Method collects ultimate fibre or fibre bundle, thus cannot utilize the performance of its fibre bundle.Melt-blown micro fibre beam is without several melt-blown super
The aggregation of fine fibre, thus with very big specific surface area, have then extraordinary Filtration Adsorption effect, and can be more
Mend the not enough problem of monofilament strength.
Electrostatic spinning superfine fibre be polymer solution or melt in the presence of high voltage electric field, the nano-scale fiber of formation,
Thus also have very big specific surface area, and sound-absorbing and with Filtration Adsorption performance.Common electrostatic spinning device is also to spray
Directly into cloth after electrostatic spinning superfine fibre.
The content of the invention
The present invention is directed to above-mentioned problem, it is proposed that prepare composite ultrafine fiber beam using melt-blown and electrostatic spinning
Device and method.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
Prepare the device of composite ultrafine fiber beam using melt-blown and electrostatic spinning, including device for melt blowing, cooling beaming device,
Electrostatic spinning and electret device；
The device for melt blowing is used to prepare melt-blown micro fibre, and melt-blown micro fibre is delivered to cooling beaming device；
The cooling beaming device is arranged on below device for melt blowing, for entering to the melt-blown micro fibre that device for melt blowing sprays
Row cooling and boundling；
The electrostatic spinning and electret device are used to prepare electrostatic spinning superfine fibre, by electrostatic spinning superfine fibre and melt-blown super
Fine fibre is compound to obtain meltblown fibers/electrostatic spinning superfine fibre bundle of composite fibers, and multiple to meltblown fibers/electrostatic spinning superfine fibre
The process of condensating fiber Shu Jinhang electrets, obtains electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
Further, the cooling beaming device includes packaged air conditioner and beaming device；The packaged air conditioner is arranged on melt-blown dress
The lower section of middle meltblown beam is put, for cooling down to the melt-blown micro fibre that device for melt blowing sprays, the beaming device is arranged
Below packaged air conditioner, for carrying out boundling to the melt-blown micro fibre after cooling；Width of the beaming device along fabric width direction
Not less than meltblown beam in device for melt blowing along fabric width direction width.
Further, the cooling beaming device includes packaged air conditioner and curtain net reception device；
The packaged air conditioner is arranged on the lower section of meltblown beam in device for melt blowing, melt-blown ultra-fine for what is sprayed to device for melt blowing
Fiber is cooled down, and the curtain net reception device is arranged on below packaged air conditioner, for carrying out to the melt-blown micro fibre after cooling
Boundling；Fabric width direction of the curtain net reception device along meltblown beam in device for melt blowing, by away from electrostatic spinning and electret dress
One end put, to one end transmission near electrostatic spinning and electret device.
Further, the distance between the packaged air conditioner upper surface and lower surface of meltblown beam in device for melt blowing scope is
5-10cm, packaged air conditioner along the width in fabric width direction be device for melt blowing in meltblown beam along 1.1 times -1.25 of the width in fabric width direction
Times.
Further, the packaged air conditioner includes refrigeration plant, the apparatus of air conditioning, blower fan, pipeline, side-blown wind system and control
System processed；
The side-blown wind system includes air channel, casing, porous plate and air outlet；The air channel is arranged on casing, is used for
Air intake；
The porous plate adopts thickness range for the corrosion resistant plate of 2-3mm, and percent opening scope is 50%-80%, single
Bore dia scope is 1-3mm, and the quantity of the porous plate is 1-3 blocks, and is placed in parallel in casing；
The casing is provided with the rectangular structure of air outlet for side, and the air outlet is in the face of melting that meltblown beam sprays
Spraying super-fine-fiber, cold wind blow to the melt-blown micro fibre of device for melt blowing ejection by air outlet；
The air outlet includes damping screen and deflector, and the deflector adopts aluminum cellular board, and thickness range is 30-
50mm, between the parallel face of single honeycomb hole each pair apart from L scopes be 3-5mm；Deflector both sides are provided with damping screen；It is described
Stainless (steel) wire or brass screen of the damping screen for 60-150 mesh；
The casing to be removed and be also covered with heat-insulation layer on the outer surface of other several times for being provided with air outlet one side.
Further, the electrostatic spinning and electret device include electrostatic spinning apparatus and rearmounted electret processing meanss, institute
Electrostatic spinning apparatus are stated for electrostatic spinning superfine fibre being prepared using electrospinning process, and by electrostatic spinning superfine fibre and melt-blown
Superfine fibre is combined with each other, and the rearmounted electret processing meanss are for carrying out to melt-blown micro fibre and electrostatic spinning superfine fibre
Electret process.
Further, it is additionally provided with preposition electret between the cooling beaming device and electrostatic spinning and electret device to process
Device, for carrying out electret process to melt-blown micro fibre, obtains electret melt-blown fiber/electrostatic spinning superfine fibre composite fibre
Beam.
Further, the second beaming device is additionally provided with after the electrostatic spinning and electret device, for electret melt-blown
Fiber/electrostatic spinning superfine fibre bundle of composite fibers carries out boundling.
The method that composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning, comprises the following steps：
Step S1, device for melt blowing prepare melt-blown micro fibre, and melt-blown micro fibre is delivered to cooling beaming device；
Step S2, cooling beaming device are cooled down to the melt-blown micro fibre that device for melt blowing sprays and boundling；
Step S3, electrostatic spinning and electret device prepare electrostatic spinning superfine fibre, by electrostatic spinning superfine fibre and melt-blown super
Fine fibre is compound to obtain meltblown fibers/electrostatic spinning superfine fibre bundle of composite fibers, and multiple to meltblown fibers/electrostatic spinning superfine fibre
The process of condensating fiber Shu Jinhang electrets, obtains electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
Further, the cooling beaming device of step S2 includes packaged air conditioner, curtain net reception device and beaming device；Institute
State step S2 to be specially：Packaged air conditioner is cooled down to melt-blown micro fibre, and the melt-blown micro fibre after cooling is fallen along successively
In device for melt blowing in the curtain net reception device of the fabric width direction transmission of meltblown beam, melt-blown micro fibre is in curtain net reception device
After being mutually superimposed, Jing curtain net reception devices drive to electrostatic spinning and electret device；
Further, the cooling beaming device of step S2 includes packaged air conditioner and beaming device；Step S2 is concrete
For：The packaged air conditioner is cooled down to the melt-blown micro fibre of the ejection of device for melt blowing, the beaming device to cooling after it is molten
Spraying super-fine-fiber carries out boundling；And the beaming device along fabric width direction width not less than meltblown beam in device for melt blowing along width
The width of cross direction.
Beneficial effects of the present invention are：The present invention is improved to conventional meltblown method, is accelerated by increasing cold side blowing
The cooling of melt-blown micro fibre, makes fiber collect in the case where cooling down completely, it is to avoid the bonding between melt-blown micro fibre, also may be used
Prevent fiber from disorientation occurring at relatively high temperatures, melt-blown micro fibre remains certain degree of orientation, and fiber strength is improved.Together
When, curtain net is changed to along meltblown beam fabric width direction by the movement perpendicular to meltblown beam fabric width direction that tradition prepares non-woven fabrics
It is mobile, or boundling is directly carried out after cooling down to melt-blown micro fibre, diameter can be directly obtained and can reach 1～5 μm melt-blown
Superfine fibre beam, the present invention are combined melt-blown with electrostatic spinning, and the fiber composite of different fineness rank is formed compound together
Fiber, the bundle of composite fibers of the present invention are made up of meltblown fibers and electrostatic spinning superfine fibre, and fiber is micron order and nanoscale,
There is small hole in surface, thus its specific surface area can be very big, and heat-insulated, acoustically effective can be fine, can intercept not during Filtration Adsorption
With the particle of size, and as meltblown fibers and electrostatic spinning superfine fibre are through electret process, the filtration to fine particles is inhaled
Attached efficiency can be very good.
Description of the drawings
Fig. 1 is to cool down beaming device using preparation facilitiess structural representation during the first embodiment；
Fig. 2 is to cool down beaming device using preparation facilitiess structural representation during second embodiment；
Cross air blasting system structure diagrams of the Fig. 3 for preparation facilitiess.
In accompanying drawing, the list of parts that each label is represented is as follows：
1st, device for melt blowing；2nd, packaged air conditioner；3rd, curtain net reception device；4th, beaming device；5th, electrostatic spinning and electret device；6、
Melt-blown micro fibre；7th, preposition electret processing meanss；8th, the second beaming device；21st, air channel；22nd, casing；23rd, porous plate；24、
Damping screen；25th, deflector；51st, electrostatic spinning apparatus；52nd, rearmounted electret processing meanss.
Specific embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
As depicted in figs. 1 and 2, the device of composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning, it is characterised in that：
Including device for melt blowing 1, cooling beaming device, electrostatic spinning and electret device 5；
The device for melt blowing 1 is used to prepare melt-blown micro fibre 6, and melt-blown micro fibre 6 is delivered to cooling collection gets one's things ready
Put；
The cooling beaming device is arranged on below device for melt blowing 1, for the melt-blown micro fibre sprayed to device for melt blowing 1
6 are cooled down and boundling；
The electrostatic spinning and electret device 5 are used to prepare electrostatic spinning superfine fibre, by electrostatic spinning superfine fibre and melt-blown
Superfine fibre is compound to obtain meltblown fibers/electrostatic spinning superfine fibre bundle of composite fibers, and to meltblown fibers/electrostatic spinning superfine fibre
Bundle of composite fibers carries out electret process, obtains electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
The second beaming device 8 is additionally provided with after the electrostatic spinning and electret device, for electret melt-blown fiber/electrostatic
Spinning superfine fibre bundle of composite fibers carries out boundling.
The first embodiment of cooling beaming device is illustrated in figure 1, the cooling beaming device includes 2 He of packaged air conditioner
Curtain net reception device 3；
The packaged air conditioner 2 is arranged on the lower section of meltblown beam in device for melt blowing 1, melt-blown for what is sprayed to device for melt blowing 1
Superfine fibre 6 is cooled down, and the curtain net reception device 3 is arranged on below packaged air conditioner 2, for the melt-blown ultra-fine fibre after to cooling
Dimension 6 carries out boundling；Fabric width direction of the curtain net reception device 3 along meltblown beam in device for melt blowing 1, by away from electrostatic spinning
And one end of electret device 5, to one end transmission by electrostatic spinning and electret device 5.
Aspirator is provided with the curtain net reception device 3, for melt-blown micro fibre 6 is drawn to curtain net reception device
On 3 upper surface.
Second embodiment of cooling beaming device is illustrated in figure 2, the cooling beaming device includes 2 He of packaged air conditioner
Beaming device 4；The packaged air conditioner 2 is arranged on below the spinning nozzle of device for melt blowing 1, for the melt-blown of the ejection to device for melt blowing 1
Superfine fibre 6 is cooled down, and the beaming device 4 is arranged on below packaged air conditioner 2, for the melt-blown micro fibre 6 after cooling
Carry out boundling and obtain superfine fibre beam；The superfine fibre beam is transported to preposition electret processing meanss 7 through fiber channel.Institute
That states fiber channel act as holding and guiding fibre bundle, can be using forms such as supporting plates.The beaming device 4 is along fabric width direction
Width not less than meltblown beam in device for melt blowing 1 along fabric width direction width, therefore the melt-blown micro fibre that device for melt blowing sprays
Boundling can be carried out into beaming device 4.
When the cooling beaming device adopts second embodiment, the beaming device 4 adopts horn mouth buncher, institute
Horn mouth buncher longitudinal section flare is stated, the beaming device 4 is also connected with aspirator.
Second beaming device 8 is also adopted by horn mouth buncher, and 8 section of the second beaming device is in horn mouth, position
After electrostatic spinning and electret device 5, it is in 5～15 ° with electrostatic spinning and 5 Way out of electret device, boundling path is double
Streamlined, horn inlet diameter exports wide 10～20cm than electrostatic spinning and electret device 5, and outlet diameter is the circle of 2～5cm
Shape, buncher length are 20～40cm, and buncher is connected with sucktion fan.
In 2 upper surface of the packaged air conditioner and device for melt blowing 1, the distance between lower surface of meltblown beam scope is 5-10cm,
Packaged air conditioner 2 along the width in fabric width direction be device for melt blowing 1 in meltblown beam along 1.1 times -1.25 times of the width in fabric width direction.
The packaged air conditioner 2 includes refrigeration plant, the apparatus of air conditioning, blower fan, pipeline, side-blown wind system and control system；
As shown in figure 3, the side-blown wind system includes air channel 21, casing 22, porous plate 23 and air outlet；The air channel 21
It is arranged on casing 22, for air intake；
The porous plate 23 adopts thickness range for the corrosion resistant plate of 2-3mm, and percent opening scope is 50%-80%, single
Individual bore dia scope is 1-3mm, and the quantity of the porous plate (23) is 1-3 blocks, and is placed in parallel in casing；
The casing is provided with the rectangular structure of air outlet for side, and the air outlet is sprayed in the face of device for melt blowing 1
Melt-blown micro fibre 6, cold wind blow to the melt-blown micro fibre 6 of the ejection of device for melt blowing 1 by air outlet；
The air outlet includes damping screen 24 and deflector 25, and the deflector 25 adopts aluminum cellular board, thickness range
For 30-50mm, it is 3-5mm apart from L scopes between the parallel face of single honeycomb hole each pair；25 both sides of deflector are provided with damping
Net 24；Stainless (steel) wire or brass screen of the damping screen 24 for 60-150 mesh；
The casing 22 to be removed and be also covered with heat-insulation layer on the outer surface of other several times for being provided with air outlet one side.
The cooling air temperature of the blowout of the packaged air conditioner 2 is 5-20 DEG C, and cooling airflow amount scope is 10000-20000m3/ h,
Cooling wind pressure scope is 1000-2500Pa, and wind speed range is 1-2.5m/s.
The packaged air conditioner 2 adopts the cross air blasting type of cooling.
The electrostatic spinning and electret device 5 include electrostatic spinning apparatus 51 and rearmounted electret processing meanss 52, described quiet
Electric spinning device 51 for preparing electrostatic spinning superfine fibre using electrospinning process, and by electrostatic spinning superfine fibre and melt-blown super
Fine fibre is combined with each other, and the rearmounted electret processing meanss 52 are for carrying out to melt-blown micro fibre and electrostatic spinning superfine fibre
Electret process.
Preposition electret processing meanss 7 are additionally provided between the cooling beaming device and electrostatic spinning and electret device 5, are used
In carrying out electret process to melt-blown micro fibre.Because the electrostatic spinning superfine fibre that electrostatic spinning apparatus 51 spray can be attached to melt-blown
Superfine fibre upper surface, when rearmounted electret processing meanss carry out electret process to bundle of composite fibers, to melt-blown micro fibre
The not comprehensive enough of process is possible to, by processing to the preposition electret of melt-blown micro fibre, can be improved and melt-blown micro fibre is stayed
The effect that pole is processed.
The method that composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning, comprises the following steps：
(1) prepare melt-blown micro fibre：After the thermoplastic fibre pellet such as PP, PET is put into the hopper of device for melt blowing, pass through
Screw extruder is melted, and is sprayed from spinneret after dosing pump is quantitative, and the temperature in four areas of screw extruder is with the different of raw material
When difference, such as raw material are PP, four area's temperature of screw extruder is respectively 260 DEG C, 260 DEG C, 270 DEG C, 270 DEG C；Raw material is PET
When, four area's temperature of screw extruder is respectively 270 DEG C, 270 DEG C, 280 DEG C, 280 DEG C.The melt-blown micro fibre of ejection is first two
Quick drawn down is carried out under the hot blast of side, hot blast temperature is 220-240 DEG C, and hot-blast pressure is 0.4-0.5MPa, melt-blown speed
For 10-100m/min.Melt-blown micro fibre is cooled down after hot blast drawing-off in packaged air conditioner, and cooling air temperature is 5-20 DEG C, cold
But wind flow is 10000-20000m3/ h, cooling wind pressure are 1000-2500Pa, and, in 1-2.5m/s, melt-blown micro fibre is cold for wind speed
But boundling is carried out using curtain net collection device or beaming device after.
(2) preposition electret process is carried out to melt-blown micro fibre：To melt-blown ultra-fine fibre by the way of high-voltage corona discharge
Dimension carries out preposition electret process, and electret voltage is 5-20kV, electret interval 20-60mm, electret time 5-10s.
(3) electrostatic spinning superfine fibre and bundle of composite fibers are prepared：The ultra-fine fibre of Static Spinning is prepared using electrostatic spinning apparatus
Dimension, if electrostatic spinning apparatus adopt solution electrostatic spinning, electrostatic spinning voltage is 1-50kV, and concentration of dope is 5%-
35%, it is 15-25cm to receive distance, and the fltting speed of syringe is 0.8-1.0ml/h；If electrostatic spinning apparatus are quiet using melt
Electrospun, then electrostatic spinning voltage be 1-100kV, spinning distance be 0.1-30cm, air pressure promote 0.5-5kPa, melt temperature root
Different according to different raw materials, such as PE is 200-220 DEG C, and PET is 240-270 DEG C, and PLA is 180-220 DEG C etc..Melt-blown ultra-fine fibre
It is combined together with tieing up the electrostatic spinning superfine fibre sprayed with the electrostatic spinning syringe needle of electrostatic spinning apparatus, obtains bundle of composite fibers, it is multiple
Condensating fiber beam is further carried out rearmounted electret and processes, and electret parameter is consistent with the process of preposition electret, obtain electret melt-blown fiber/
Electrostatic spinning superfine fibre bundle of composite fibers.
(4) boundling of electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers and collection：Electret melt-blown fiber/quiet
Electric-woven super-fine fiber bundle of composite fibers enters the second beaming device boundling and collection.
Due to the present invention fibre bundle be all made up of meltblown fibers and electrostatic spinning superfine fibre, fiber for micron order with
There is small hole in nanoscale, surface, thus its specific surface area can be very big, and heat-insulated, acoustically effective can be fine, energy during Filtration Adsorption
Various sizes of particle is intercepted, and as meltblown fibers and electrostatic spinning superfine fibre are through electret process, to fine particles
Filtration Adsorption efficiency can be very good.
Preposition electret processing meanss are the electrets to melt-blown micro fibre, as itself is without electric charge, so that many
And close electret；Rearmounted electret processing meanss are then the electrets to melt-blown micro fibre/electrostatic spinning superfine fibre, mainly to quiet
The electret of electric-woven super-fine fiber, thus the electret for only needing juvenile dilute, electret positive plate is in sustained height in front and back, and between negative plate
Away from for 5-30cm.Middle is electrostatic spinning part, there is high-voltage electrostatic field, and syringe needle place flat board can on electrostatic spinning syringe needle
To move up and down, reception distance is adjusted, electrostatic spinning is divided into solution electrostatic spinning and melt electrostatic spinning, wherein solution electrostatic
Spinning voltage is 1-50kV, and concentration of dope is 5%-35%, receives distance for 15-25cm, and the fltting speed of syringe is
0.8-1.0ml/h；Melt electrostatic spinning voltage is 1-100kV, and spinning distance is 0.1-30cm, and air pressure promotes 0.5-5kPa, molten
Temperature is different according to different raw materials, and such as PE is 200-220 DEG C, and PLA is 180-220 DEG C etc..
Embodiment 1
The method that composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning, comprises the following steps：
(1) prepare melt-blown micro fibre：PP pellets are added into the hopper of device for melt blowing, is melted through screw extruder, meter
From spinneret spray webbing after amount pump is quantitative, the temperature in four areas of screw extruder is respectively 260 DEG C, 260 DEG C, 270 DEG C, 270 DEG C, spray
The melt-blown micro fibre for going out carries out quick drawn down first under the hot blast of both sides, and hot blast temperature is 220 DEG C, and hot-blast pressure is
0.5MPa, melt-blown speed are 10m/min.After fiber is by hot blast drawing-off, cool down in packaged air conditioner, cooling air temperature is 8 DEG C, cooling
Wind flow is 15000m3/ h, cooling wind pressure are 1500Pa, and wind speed is after 2m/s, melt-blown micro fibre cooling using curtain net receipts
Acquisition means or beaming device carry out boundling, and gained melt-blown micro fibre average diameter is 1 μm.
(2) preposition electret process is carried out to melt-blown micro fibre：To melt-blown ultra-fine fibre by the way of high-voltage corona discharge
Dimension carries out preposition electret process, and electret voltage is 20kV, electret interval 30mm, electret time 10s.
(3) electrostatic spinning superfine fibre and bundle of composite fibers are prepared：The ultra-fine fibre of Static Spinning is prepared using electrostatic spinning apparatus
Dimension, electrostatic spinning apparatus adopt PVA melt electrostatic spinnings, electrostatic spinning voltage be 18kV, concentration of dope is 5%, receive away from
It is 1.0ml/h from the fltting speed for 20cm, syringe.Melt-blown micro fibre is sprayed with the electrostatic spinning syringe needle of electrostatic spinning apparatus
The electrostatic spinning superfine fibre for going out is combined together, obtains bundle of composite fibers, and bundle of composite fibers is further carried out rearmounted electret and processes,
Electret parameter is consistent with the process of preposition electret, obtains electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
(4) boundling of electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers and collection：Electret melt-blown fiber/quiet
Electric-woven super-fine fiber bundle of composite fibers enters the second beaming device boundling and collection.
The electrostatic spinning superfine fibre of the present embodiment is nanoscale, compound with melt-blown micro fibre, can adsorption filtration difference chi
Very little particle, and also there are Adsorption Filtration Properties to the small particle such as PM2.5.
Embodiment 2
The method that composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning, comprises the following steps：
(1) prepare melt-blown micro fibre：PP pellets are added into the hopper of device for melt blowing, is melted through screw extruder, meter
From spinneret spray webbing after amount pump is quantitative, the temperature in four areas of screw extruder is respectively 260 DEG C, 260 DEG C, 270 DEG C, 270 DEG C, spray
The melt-blown micro fibre for going out carries out quick drawn down first under the hot blast of both sides, and hot blast temperature is 220 DEG C, and hot-blast pressure is
0.5MPa, melt-blown speed are 10m/min.After fiber is by hot blast drawing-off, cool down in packaged air conditioner, cooling air temperature is 8 DEG C, cooling
Wind flow is 15000m3/ h, cooling wind pressure are 1500Pa, and wind speed is after 2m/s, melt-blown micro fibre cooling using curtain net receipts
Acquisition means or beaming device carry out boundling, and gained melt-blown micro fibre average diameter is 1 μm.
(2) preposition electret process is carried out to melt-blown micro fibre：To melt-blown ultra-fine fibre by the way of high-voltage corona discharge
Dimension carries out preposition electret process, and electret voltage is 20kV, electret interval 30mm, electret time 10s.
(3) electrostatic spinning superfine fibre and bundle of composite fibers are prepared：The ultra-fine fibre of Static Spinning is prepared using electrostatic spinning apparatus
Dimension, electrostatic spinning apparatus adopt PET melt electrostatic spinning, PET raw materials before electrostatic spinning is carried out before to be dried at 150 DEG C
24h.The electrostatic spinning voltage of electrostatic spinning apparatus is 25kV, and spinning distance is 12cm, and air pressure promotes 2kPa, and melt temperature is
260℃.It is combined together with the electrostatic spinning superfine fibre that melt-blown micro fibre is sprayed with the electrostatic spinning syringe needle of electrostatic spinning apparatus, obtains
To bundle of composite fibers, bundle of composite fibers is further carried out rearmounted electret and processes, and electret parameter is consistent with the process of preposition electret, obtains
To electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
(4) boundling of electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers and collection：Electret melt-blown fiber/quiet
Electric-woven super-fine fiber bundle of composite fibers enters buncher boundling and collection.
The present embodiment adopts melt electrostatic spinning, and electrostatic spinning superfine fibre silk is micron order long filament, possesses certain strength,
Covering yarn can be spun into as heart yarn or skin yarn.
Embodiment 3
The method that composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning, comprises the following steps：
(1) prepare melt-blown micro fibre：PP pellets are added into the hopper of device for melt blowing, is melted through screw extruder, meter
From spinneret spray webbing after amount pump is quantitative, the temperature in four areas of screw extruder is respectively 260 DEG C, 260 DEG C, 270 DEG C, 270 DEG C, spray
The melt-blown micro fibre for going out carries out quick drawn down first under the hot blast of both sides, and hot blast temperature is 220 DEG C, and hot-blast pressure is
0.5MPa, melt-blown speed are 10m/min.After fiber is by hot blast drawing-off, cool down in packaged air conditioner, cooling air temperature is 8 DEG C, cooling
Wind flow is 15000m3/ h, cooling wind pressure are 1500Pa, and wind speed is after 2m/s, melt-blown micro fibre cooling using curtain net receipts
Acquisition means or beaming device carry out boundling, and gained melt-blown micro fibre average diameter is 1 μm.
(2) preposition electret process is carried out to melt-blown micro fibre：To melt-blown ultra-fine fibre by the way of high-voltage corona discharge
Dimension carries out preposition electret process, and electret voltage is 20kV, electret interval 30mm, electret time 10s.
(3) electrostatic spinning superfine fibre and bundle of composite fibers are prepared：The ultra-fine fibre of Static Spinning is prepared using electrostatic spinning apparatus
Dimension, electrostatic spinning apparatus adopt PLA melt electrostatic spinnings, PLA raw materials before electrostatic spinning is carried out before to be dried at 150 DEG C
24h.The electrostatic spinning voltage of electrostatic spinning apparatus is 20kV, and spinning distance is 10cm, and air pressure promotes 2kPa, and melt temperature is
200℃.It is combined together with the electrostatic spinning superfine fibre that melt-blown micro fibre is sprayed with the electrostatic spinning syringe needle of electrostatic spinning apparatus, obtains
To bundle of composite fibers, bundle of composite fibers is further carried out rearmounted electret and processes, and electret parameter is consistent with the process of preposition electret, obtains
To electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
(4) boundling of electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers and collection：Electret melt-blown fiber/quiet
Electric-woven super-fine fiber bundle of composite fibers enters the second beaming device boundling and collection.
The Static Spinning fine fibre raw material of the present embodiment uses PLA, with biodegradability, biocompatibility, subsequently
Medical and hygiene article etc. can be processed into.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. the device of composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning, it is characterised in that：Including device for melt blowing (1),
Cooling beaming device, electrostatic spinning and electret device (5)；
The device for melt blowing (1) is for preparing melt-blown micro fibre (6), and melt-blown micro fibre (6) is delivered to cooling boundling
Device；
The cooling beaming device is arranged on below device for melt blowing (1), for the melt-blown micro fibre sprayed to device for melt blowing (1)
(6) cooled down and boundling；
The electrostatic spinning and electret device (5) for preparing electrostatic spinning superfine fibre, by electrostatic spinning superfine fibre and melt-blown super
Fine fibre is compound to obtain meltblown fibers/electrostatic spinning superfine fibre bundle of composite fibers, and multiple to meltblown fibers/electrostatic spinning superfine fibre
The process of condensating fiber Shu Jinhang electrets, obtains electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
2. according to claim 1 using the melt-blown device that composite ultrafine fiber beam is prepared with electrostatic spinning, its feature exists
In：The cooling beaming device includes packaged air conditioner (2) and beaming device (4)；The packaged air conditioner (2) is arranged on device for melt blowing (1)
The lower section of middle meltblown beam, the melt-blown micro fibre (6) for spraying to device for melt blowing (1) cool down, the beaming device
(4) it is arranged on below packaged air conditioner (2), for carrying out boundling to the melt-blown micro fibre (6) after cooling；The beaming device (4)
Width along fabric width direction is not less than width of the meltblown beam along fabric width direction in device for melt blowing (1).
3. according to claim 1 using the melt-blown device that composite ultrafine fiber beam is prepared with electrostatic spinning, its feature exists
In：The cooling beaming device includes packaged air conditioner (2) and curtain net reception device (3)；
The packaged air conditioner (2) is arranged on the lower section of meltblown beam in device for melt blowing (1), molten for what is sprayed to device for melt blowing (1)
Spraying super-fine-fiber (6) is cooled down, and the curtain net reception device (3) is arranged on below packaged air conditioner (2), for molten after to cooling
Spraying super-fine-fiber (6) carries out boundling；Fabric width direction of the curtain net reception device (3) along meltblown beam in device for melt blowing (1),
By the one end away from electrostatic spinning and electret device (5), to one end transmission near electrostatic spinning and electret device (5).
4. the melt-blown device that composite ultrafine fiber beam is prepared with electrostatic spinning of utilization according to Claims 2 or 3, its feature
It is that the distance between lower surface of meltblown beam scope is 5- in packaged air conditioner (2) upper surface and device for melt blowing (1)
10cm, packaged air conditioner (2) along the width in fabric width direction be device for melt blowing (1) in meltblown beam along 1.1 times of the width in fabric width direction-
1.25 again.
5. the melt-blown device that composite ultrafine fiber beam is prepared with electrostatic spinning of utilization according to Claims 2 or 3, its feature
It is that the packaged air conditioner (2) is including refrigeration plant, the apparatus of air conditioning, blower fan, pipeline, side-blown wind system and control system；
The side-blown wind system includes air channel (21), casing (22), porous plate (23) and air outlet；The air channel (21) is arranged on
On casing (22), for air intake；
The porous plate (23) adopts thickness range for the corrosion resistant plate of 2-3mm, and percent opening scope is 50%-80%, single
Bore dia scope is 1-3mm, and the quantity of the porous plate (23) is 1-3 blocks, and is placed in parallel in casing；
The casing is provided with the rectangular structure of air outlet for side, and the air outlet is in the face of melting that device for melt blowing (1) sprays
Spraying super-fine-fiber (6), cold wind blow to the melt-blown micro fibre (6) that device for melt blowing (1) sprays by air outlet；
The air outlet includes damping screen (24) and deflector (25), and the deflector (25) is using aluminum cellular board, thickness model
Enclose for 30-50mm, be 3-5mm apart from L scopes between the parallel face of single honeycomb hole each pair；Deflector (25) both sides are provided with
Damping screen (24)；Stainless (steel) wire or brass screen of the damping screen (24) for 60-150 mesh；
The casing (22) is except being also covered with heat-insulation layer on the outer surface of other several times for being provided with air outlet one side.
6. according to claim 1 using the melt-blown device that composite ultrafine fiber beam is prepared with electrostatic spinning, its feature exists
In：The electrostatic spinning and electret device (5) are including electrostatic spinning apparatus (51) and rearmounted electret processing meanss (52), described quiet
Electric spinning device (51) for preparing electrostatic spinning superfine fibre using electrospinning process, and by electrostatic spinning superfine fibre and melt-blown
Superfine fibre is combined with each other, and the rearmounted electret processing meanss (52) are for melt-blown micro fibre and electrostatic spinning superfine fibre
Carry out electret process.
7. according to claim 1 using the melt-blown device that composite ultrafine fiber beam is prepared with electrostatic spinning, its feature exists
In：Preposition electret processing meanss (7) are additionally provided between the cooling beaming device and electrostatic spinning and electret device (5), are used
In carrying out electret process to melt-blown micro fibre.
8. the method for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, it is characterised in that comprise the following steps：
Step S1, device for melt blowing (1) prepare melt-blown micro fibre (6), and melt-blown micro fibre (6) is delivered to cooling collection gets one's things ready
Put；
Step S2, cooling beaming device are cooled down and boundling to the melt-blown micro fibre (6) that device for melt blowing (1) sprays；
Step S3, electrostatic spinning and electret device (5) prepare electrostatic spinning superfine fibre, by electrostatic spinning superfine fibre and melt-blown ultra-fine
Fiber composite obtains meltblown fibers/electrostatic spinning superfine fibre bundle of composite fibers, and compound to meltblown fibers/electrostatic spinning superfine fibre
Fibre bundle carries out electret process, obtains electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
9. according to claim 8 using the melt-blown method for preparing composite ultrafine fiber beam with electrostatic spinning, its feature exists
In the cooling beaming device of step S2 includes packaged air conditioner (2) and curtain net reception device (3)；Step S2 is specially：It is cold
Bellows (3) are cooled down to melt-blown micro fibre (6), and the melt-blown micro fibre (6) after cooling falls along device for melt blowing successively
(1), on curtain net reception device (3) of the fabric width direction transmission of meltblown beam, curtain net reception device (3) is to melt-blown micro fibre
(6) boundling obtains superfine fibre beam.
10. according to claim 8 using the melt-blown method for preparing composite ultrafine fiber beam with electrostatic spinning, its feature exists
In the cooling beaming device of step S2 includes packaged air conditioner (2) and beaming device (4)；Step S2 is specially：It is described cold
Bellows are cooled down to the melt-blown micro fibre (6) of the ejection of device for melt blowing (1), the beaming device (4) to cooling after it is molten
Spraying super-fine-fiber (6) carries out boundling；And width of the beaming device (4) along fabric width direction is melted not less than in device for melt blowing (1)
Width of the jet mould head along fabric width direction.
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| CN107604536A (en) * | 2017-09-12 | 2018-01-19 | 曾林涛 | A kind of preparation method of fluffy resilient three-dimensional micro nanometer fiber material, device and the fibrous material prepared by this method and its application |
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