CN106555277B - 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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- CN106555277B CN106555277B CN201611097432.4A CN201611097432A CN106555277B CN 106555277 B CN106555277 B CN 106555277B CN 201611097432 A CN201611097432 A CN 201611097432A CN 106555277 B CN106555277 B CN 106555277B
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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
-
- 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)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
Abstract
It the present invention relates to the use of melt-blown and electrostatic spinning prepare the device and method of composite ultrafine fiber beam, the present apparatus 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 below device for melt blowing, and the melt-blown micro fibre for spraying to device for melt blowing carries out cooling and boundling；Electrostatic spinning and electret device are used to prepare electrostatic spinning superfine fibre, by electrostatic superfine fibre and melt-blown micro fibre be compound and electret is handled, obtain electret bundle of composite fibers.Since fibre bundle of the invention is all made 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, it is heat-insulated, sound absorption effect is fine, when filtering absorption, can intercept various sizes of particle, and since meltblown fibers and electrostatic fibre are by electret processing, it, can be very good to the filtering adsorption efficiency of fine particles in the case where not increasing filtration resistance.
Description
Technical field
The present invention relates to fabric manufacturing areas, and in particular to prepares composite ultrafine fiber beam using melt-blown and electrostatic spinning
Device and method.
Background technique
Melt-blown micro fibre is thermoplastic material by being melted under the blowing of high speed hot wind, and it is super extremely to stretch formation melt-blown
Fine fibre, but just because of the ultra-fine of it, cause its strength very low, can not be used alone, so greatly limits melt-blown
The use scope of superfine fibre.Common device for melt blowing is to be directly laid down to form fusion spray cloth, nothing after melt-blown micro fibre ejection
Method collects single fiber or fibre bundle, thus can not utilize the performance of its fibre bundle.Melt-blown micro fibre beam is super without several melt-blowns
The aggregate of fine fibre, thus there is very big specific surface area, then there is extraordinary filtering adsorption effect, and can be more
Mend the problem of monofilament strength deficiency.
Electrostatic spinning superfine fibre is polymer solution or melt under the action of high voltage electric field, the nano-scale fiber of formation,
Thus also with very big specific surface area and sound-absorbing and and filtering absorption property.Common electrostatic spinning device is also to spray
Directly at cloth after electrostatic spinning superfine fibre.
Summary of the invention
The present invention in view of the above problems, proposes and prepares composite ultrafine fiber beam using melt-blown and electrostatic spinning
Device and method.
The technical scheme to solve the above technical problems is that
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 below device for melt blowing, the melt-blown micro fibre for being sprayed to device for melt blowing into
Row cooling and boundling；
The electrostatic spinning and electret device are used to prepare electrostatic spinning superfine fibre, and electrostatic spinning superfine fibre and melt-blown is 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 processing of condensating fiber Shu Jinhang electret, 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 setting is filled in melt-blown
The lower section for setting middle meltblown beam, for being cooled down to the melt-blown micro fibre that device for melt blowing sprays, the beaming device setting
Below packaged air conditioner, for carrying out boundling to melt-blown micro fibre after cooling；Width of the beaming device along breadth direction
Not less than meltblown beam in device for melt blowing along the width in breadth direction.
Further, the cooling beaming device includes packaged air conditioner and curtain net reception device；
The lower section of meltblown beam in device for melt blowing is arranged in the packaged air conditioner, and the melt-blown for spraying to device for melt blowing is ultra-fine
Fiber is cooled down, and the curtain net reception device is arranged below packaged air conditioner, for carrying out to melt-blown micro fibre after cooling
Boundling；The curtain net reception device is filled along the breadth direction of meltblown beam in device for melt blowing by separate electrostatic spinning and electret
The one end set is driven to one end close to electrostatic spinning and electret device.
Further, the packaged air conditioner upper surface is with the distance between the lower surface of meltblown beam in device for melt blowing range
5-10cm, width of the packaged air conditioner along breadth direction be in device for melt blowing meltblown beam along 1.1 times -1.25 of width of breadth direction
Times.
Further, the packaged air conditioner includes refrigeration equipment, the apparatus of air conditioning, blower, pipeline, side-blown wind system and control
System processed；
The side-blown wind system includes air duct, cabinet, porous plate and air outlet；The air duct is arranged on cabinet, is used for
Air inlet；
The porous plate uses thickness range for the stainless steel plate of 2-3mm, and percent opening range is 50%-80%, individually
Bore dia range is 1-3mm, and the quantity of the porous plate is 1-3 block, and is placed in parallel in cabinet；
The cabinet is the rectangular parallelepiped structure that side is provided with air outlet, and the air outlet sprays molten in face of meltblown beam
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 uses aluminum honeycomb plate, thickness range 30-
50mm, distance L range is 3-5mm between single each pair of parallel face of honeycomb hole；Deflector two sides are provided with damping screen；It is described
Damping screen is the stainless (steel) wire or brass screen of 60-150 mesh；
The cabinet remove air outlet one side is installed other several times outer surface on be also covered with insulating layer.
Further, the electrostatic spinning and electret device include electrostatic spinning apparatus and postposition electret processing unit, institute
Electrostatic spinning apparatus is stated 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 postposition electret processing unit is used to carry out melt-blown micro fibre and electrostatic spinning superfine fibre
Electret processing.
Further, preposition electret processing is additionally provided between the cooling beaming device and electrostatic spinning and electret device
Device obtains electret melt-blown fiber/electrostatic spinning superfine fibre composite fibre for carrying out electret processing to melt-blown micro fibre
Beam.
Further, it is additionally provided with the second beaming device 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 for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, comprising the following steps:
Step S1, device for melt blowing prepares melt-blown micro fibre, and melt-blown micro fibre is delivered to cooling beaming device；
Step S2, cooling beaming device carries out cooling and boundling to the melt-blown micro fibre that device for melt blowing sprays；
Step S3, electrostatic spinning and electret device prepare electrostatic spinning superfine fibre, and electrostatic spinning superfine fibre and melt-blown is 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 processing of condensating fiber Shu Jinhang electret, obtains electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
Further, the cooling beaming device of the step S2 includes packaged air conditioner, curtain net reception device and beaming device；Institute
State step S2 specifically: packaged air conditioner cools down melt-blown micro fibre, and melt-blown micro fibre after cooling is successively fallen along
In device for melt blowing in the curtain net reception device of the breadth direction transmission of meltblown beam, melt-blown micro fibre is in curtain net reception device
After being mutually superimposed, electrostatic spinning and electret device are driven to through curtain net reception device；
Further, the cooling beaming device of the step S2 includes packaged air conditioner and beaming device；The step S2 is specific
Are as follows: the packaged air conditioner cools down the melt-blown micro fibre of the ejection of device for melt blowing, and the beaming device is to after cooling molten
Spraying super-fine-fiber carries out boundling；And the beaming device along breadth direction width not less than meltblown beam in device for melt blowing along width
The width of wide direction.
The invention has the benefit that the present invention improves conventional meltblown method, accelerated by increasing cold side blowing
The cooling of melt-blown micro fibre collects fiber in the case where complete cooling, avoids the bonding between melt-blown micro fibre, can also
Prevent fiber from disorientation occurring at relatively high temperatures, melt-blown micro fibre remains certain degree of orientation, and fiber strength improves.Together
When, curtain net is prepared into being changed to perpendicular to the movement of meltblown beam breadth direction along meltblown beam breadth direction for non-woven fabrics by tradition
It is mobile, or boundling is directly carried out after cooling to melt-blown micro fibre, diameter can directly be made can reach 1~5 μm of melt-blown
Superfine fibre beam, the present invention will be meltblown in conjunction with electrostatic spinning, the fiber composite of different fineness rank be formed together compound
Fiber, bundle of composite fibers of the invention are made of meltblown fibers and electrostatic spinning superfine fibre, fiber be micron order and nanoscale,
There are small holes on surface, thus its specific surface area can be very big, and heat-insulated, sound absorption effect can very well, and filtering can intercept not when adsorbing
With the particle of size, and since meltblown fibers and electrostatic spinning superfine fibre are by electret processing, the filtering of fine particles is inhaled
Attached efficiency can be very good.
Detailed description of the invention
Fig. 1 is preparation facilities structural schematic diagram when cooling beaming device uses the first embodiment；
Fig. 2 is preparation facilities structural schematic diagram when cooling beaming device uses second of embodiment；
Fig. 3 is the cross air blasting system structure diagram of preparation facilities.
In attached drawing, the list of parts that each label represents is as follows:
1, device for melt blowing；2, packaged air conditioner；3, curtain net reception device；4, beaming device；5, electrostatic spinning and electret device；6,
Melt-blown micro fibre；7, preposition electret processing unit；8, the second beaming device；21, air duct；22, cabinet；23, porous plate；24,
Damping screen；25, deflector；51, electrostatic spinning apparatus；52, postposition electret processing unit.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the 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 and is got one's things ready
It sets；
The melt-blown micro fibre below device for melt blowing 1, for spraying to device for melt blowing 1 is arranged in the cooling beaming device
6 carry out cooling 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 processing, 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.
It is as shown in Figure 1 the first embodiment of cooling beaming device, the cooling beaming device includes 2 He of packaged air conditioner
Curtain net reception device 3；
The lower section of meltblown beam in device for melt blowing 1 is arranged in the packaged air conditioner 2, the melt-blown for spraying to device for melt blowing 1
Superfine fibre 6 is cooled down, and the curtain net reception device 3 is arranged below packaged air conditioner 2, for the ultra-fine fibre of melt-blown after cooling
Dimension 6 carries out boundling；The curtain net reception device 3 along meltblown beam in device for melt blowing 1 breadth direction, by far from electrostatic spinning
And one end of electret device 5, it is driven to one end by electrostatic spinning and electret device 5.
It is provided with suction unit in the curtain net reception device 3, for melt-blown micro fibre 6 to be drawn to curtain net reception device
On 3 upper surface.
It is illustrated in figure 2 second of embodiment of cooling beaming device, the cooling beaming device includes 2 He of packaged air conditioner
Beaming device 4；The packaged air conditioner 2 is arranged in below the spinning nozzle of device for melt blowing 1, the melt-blown for the ejection to device for melt blowing 1
Superfine fibre 6 is cooled down, and the beaming device 4 is arranged below packaged air conditioner 2, for melt-blown micro fibre 6 after cooling
It carries out boundling and obtains superfine fibre beam；The superfine fibre beam is transported to preposition electret processing unit 7 by fiber channel.Institute
The effect for stating fiber channel is holding and guidance fibre bundle, and the forms such as supporting plate can be used.The beaming device 4 is along breadth direction
Width not less than meltblown beam in device for melt blowing 1 along the width in breadth direction, therefore the melt-blown micro fibre that device for melt blowing sprays
Beaming device 4 can be entered and carry out boundling.
When the cooling beaming device uses second of embodiment, the beaming device 4 uses horn mouth buncher, institute
Horn mouth buncher longitudinal section flare is stated, the beaming device 4 is also connected with suction unit.
Second beaming device 8 also uses horn mouth buncher, and 8 section of the second beaming device is in horn mouth, position
It is in 5~15 ° with electrostatic spinning and 5 export direction of electret device, boundling path is double after electrostatic spinning and electret device 5
Streamlined, horn inlet diameter goes out 10~20cm of mouth width 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.
The distance between lower surface of meltblown beam range is 5-10cm in 2 upper surface of packaged air conditioner and device for melt blowing 1,
Width of the packaged air conditioner 2 along breadth direction be in device for melt blowing 1 meltblown beam along 1.1 times -1.25 times of width of breadth direction.
The packaged air conditioner 2 includes refrigeration equipment, the apparatus of air conditioning, blower, pipeline, side-blown wind system and control system；
As shown in figure 3, the side-blown wind system includes air duct 21, cabinet 22, porous plate 23 and air outlet；The air duct 21
It is arranged on cabinet 22, for entering the wind；
The porous plate 23 uses thickness range for the stainless steel plate of 2-3mm, and percent opening range is 50%-80%, single
A bore dia range is 1-3mm, and the quantity of the porous plate (23) is 1-3 block, and is placed in parallel in cabinet；
The cabinet is the rectangular parallelepiped structure that side is provided with air outlet, and the air outlet is sprayed in 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 uses aluminum honeycomb plate, thickness range
For 30-50mm, distance L range is 3-5mm between single each pair of parallel face of honeycomb hole；25 two sides of deflector are provided with damping
Net 24；The damping screen 24 is the stainless (steel) wire or brass screen of 60-150 mesh；
The cabinet 22 remove air outlet one side is installed other several times outer surface on be also covered with insulating layer.
The cooling wind temperature that the packaged air conditioner 2 is blown out is 5-20 DEG C, and cooling wind range of flow is 10000-20000m3/ h,
Cooling wind pressure range is 1000-2500Pa, wind speed range 1-2.5m/s.
The packaged air conditioner 2 uses the cross air blasting type of cooling.
The electrostatic spinning and electret device 5 include electrostatic spinning apparatus 51 and postposition electret processing unit 52, described quiet
Electric spinning device 51 is used to prepare electrostatic spinning superfine fibre using electrospinning process, and electrostatic spinning superfine fibre and melt-blown is super
Fine fibre is combined with each other, and the postposition electret processing unit 52 is used to carry out melt-blown micro fibre and electrostatic spinning superfine fibre
Electret processing.
It is additionally provided with preposition electret processing unit 7 between the cooling beaming device and electrostatic spinning and electret device 5, uses
In to melt-blown micro fibre progress electret processing.Because the electrostatic spinning superfine fibre that electrostatic spinning apparatus 51 sprays can be attached to melt-blown
Superfine fibre upper surface, when postposition electret processing unit carries out electret processing to bundle of composite fibers, to melt-blown micro fibre
It is possible that processing is not comprehensive enough, by can be improved and stay to melt-blown micro fibre to the processing of melt-blown micro fibre preposition electret
The effect of pole processing.
The method for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, comprising the following steps:
(1) it prepares melt-blown micro fibre: PP after the thermoplastic fibres pellet such as PET is put into the hopper of device for melt blowing, passes through
Screw extruder melting, sprays after metering pump is quantitative from spinneret, the temperature in four areas of screw extruder with the difference of raw material and
Difference, as raw material be PP when, 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 wind of side, hot blast temperature is 220-240 DEG C, hot-blast pressure 0.4-0.5MPa, is meltblown speed
For 10-100m/min.Melt-blown micro fibre is cooling in packaged air conditioner after hot wind drawing-off, and cooling wind temperature is 5-20 DEG C, cold
But wind flow is 10000-20000m3/ h, cooling wind pressure 1000-2500Pa, for wind speed in 1-2.5m/s, melt-blown micro fibre is cold
But boundling is carried out using curtain net collection device or beaming device after.
(2) preposition electret processing is carried out to melt-blown micro fibre: to the ultra-fine fibre of melt-blown by the way of high-voltage corona discharge
Dimension carries out preposition electret processing, 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: preparing the ultra-fine fibre of Static Spinning using electrostatic spinning apparatus
Dimension, if electrostatic spinning apparatus uses solution electrostatic spinning, electrostatic spinning voltage is 1-50kV, concentration of dope 5%-
35%, receiving distance is 15-25cm, and the fltting speed of syringe is 0.8-1.0ml/h；If electrostatic spinning apparatus is quiet using melt
Electrospun, then electrostatic spinning voltage is 1-100kV, and spinning distance is 0.1-30cm, and air pressure pushes 0.5-5kPa, melt temperature root
It is different according to different raw materials, such as PE is 200-220 DEG C, PET is 240-270 DEG C, and PLA is 180-220 DEG C etc..It is meltblown ultra-fine fibre
Dimension is compound together with the electrostatic spinning superfine fibre that the electrostatic spinning syringe needle of electrostatic spinning apparatus sprays, and obtains bundle of composite fibers, multiple
Condensating fiber beam is further carried out the processing of postposition electret, and electret parameter and the processing of preposition electret are consistent, obtain electret melt-blown fiber/
Electrostatic spinning superfine fibre bundle of composite fibers.
(4) electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers boundling and collection: electret melt-blown fiber/quiet
Electric-woven super-fine fiber bundle of composite fibers enters the second beaming device boundling and collection.
Since fibre bundle of the invention is all made of meltblown fibers and electrostatic spinning superfine fibre, fiber be micron order and
Nanoscale, there are small holes on surface, thus its specific surface area can be very big, and heat-insulated, sound absorption effect can very well, energy when filtering is adsorbed
Various sizes of particle is intercepted, and since meltblown fibers and electrostatic spinning superfine fibre are by electret processing, to fine particles
Filtering adsorption efficiency can be very good.
Preposition electret processing unit is the electret to melt-blown micro fibre, since itself is without charge, thus is needed more
And close electret；Postposition electret processing unit is then to melt-blown micro fibre/electrostatic spinning superfine fibre electret, mainly to quiet
The electret of electric-woven super-fine fiber, thus the electret for only needing juvenile dilute, front and back electret positive plate is in sustained height, and between negative plate
Away from for 5-30cm.Centre is electrostatic spinning part, and there are high-voltage electrostatic fields on electrostatic spinning syringe needle, and plate where syringe needle can
To move up and down, to adjust reception distance, electrostatic spinning is divided into solution electrostatic spinning and melt electrostatic spinning, wherein solution electrostatic
Spinning voltage is 1-50kV, concentration of dope 5%-35%, and receiving distance is 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 pushes 0.5-5kPa, is melted
Temperature is different according to different raw materials, such as PE is 200-220 DEG C, and PLA is 180-220 DEG C etc..
Embodiment 1
The method for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, comprising the following steps:
(1) it prepares melt-blown micro fibre: PP pellet being added to the hopper of device for melt blowing, is melted by screw extruder, count
From spinneret spinneret 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, is sprayed
Melt-blown micro fibre out carries out quick drawn down under the hot wind of two sides first, and hot blast temperature is 220 DEG C, and hot-blast pressure is
0.5MPa, melt-blown speed are 10m/min.Fiber is by after hot wind drawing-off, and cooling in packaged air conditioner, cooling wind temperature is 8 DEG C, cooling
Wind flow is 15000m3/ h, cooling wind pressure 1500Pa, wind speed are received after melt-blown micro fibre is cooling using curtain net in 2m/s
Acquisition means or beaming device carry out boundling, and gained melt-blown micro fibre average diameter is 1 μm.
(2) preposition electret processing is carried out to melt-blown micro fibre: to the ultra-fine fibre of melt-blown by the way of high-voltage corona discharge
Dimension carries out preposition electret processing, and electret voltage is 20kV, electret interval 30mm, electret time 10s.
(3) electrostatic spinning superfine fibre and bundle of composite fibers are prepared: preparing the ultra-fine fibre of Static Spinning using electrostatic spinning apparatus
Dimension, electrostatic spinning apparatus use PVA melt electrostatic spinning, electrostatic spinning voltage be 18kV, concentration of dope 5%, receive away from
It is 1.0ml/h from the fltting speed for 20cm, syringe.The spray of the electrostatic spinning syringe needle of melt-blown micro fibre and electrostatic spinning apparatus
Electrostatic spinning superfine fibre out is compound together, obtains bundle of composite fibers, and bundle of composite fibers is further carried out the processing of postposition electret,
Electret parameter and the processing of preposition electret are consistent, obtain electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
(4) electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers boundling 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 absorb and filter different rulers
Very little particle, and also there are Adsorption Filtration Properties to the small particle such as PM2.5.
Embodiment 2
The method for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, comprising the following steps:
(1) it prepares melt-blown micro fibre: PP pellet being added to the hopper of device for melt blowing, is melted by screw extruder, count
From spinneret spinneret 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, is sprayed
Melt-blown micro fibre out carries out quick drawn down under the hot wind of two sides first, and hot blast temperature is 220 DEG C, and hot-blast pressure is
0.5MPa, melt-blown speed are 10m/min.Fiber is by after hot wind drawing-off, and cooling in packaged air conditioner, cooling wind temperature is 8 DEG C, cooling
Wind flow is 15000m3/ h, cooling wind pressure 1500Pa, wind speed are received after melt-blown micro fibre is cooling using curtain net in 2m/s
Acquisition means or beaming device carry out boundling, and gained melt-blown micro fibre average diameter is 1 μm.
(2) preposition electret processing is carried out to melt-blown micro fibre: to the ultra-fine fibre of melt-blown by the way of high-voltage corona discharge
Dimension carries out preposition electret processing, and electret voltage is 20kV, electret interval 30mm, electret time 10s.
(3) electrostatic spinning superfine fibre and bundle of composite fibers are prepared: preparing the ultra-fine fibre of Static Spinning using electrostatic spinning apparatus
Dimension, electrostatic spinning apparatus use PET melt electrostatic spinning, PET raw material before carrying out electrostatic spinning 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 pushes 2kPa, and melt temperature is
260℃.Melt-blown micro fibre is compound together with the electrostatic spinning superfine fibre that the electrostatic spinning syringe needle of electrostatic spinning apparatus sprays, and obtains
To bundle of composite fibers, bundle of composite fibers is further carried out the processing of postposition electret, and electret parameter and the processing of preposition electret are consistent, obtain
To electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
(4) electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers boundling and collection: electret melt-blown fiber/quiet
Electric-woven super-fine fiber bundle of composite fibers enters buncher boundling and collection.
The present embodiment uses melt electrostatic spinning, and electrostatic spinning superfine fibre silk is micron order long filament, possesses certain strength,
It can be used as heart yarn or skin yarn, be spun into covering yarn.
Embodiment 3
The method for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, comprising the following steps:
(1) it prepares melt-blown micro fibre: PP pellet being added to the hopper of device for melt blowing, is melted by screw extruder, count
From spinneret spinneret 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, is sprayed
Melt-blown micro fibre out carries out quick drawn down under the hot wind of two sides first, and hot blast temperature is 220 DEG C, and hot-blast pressure is
0.5MPa, melt-blown speed are 10m/min.Fiber is by after hot wind drawing-off, and cooling in packaged air conditioner, cooling wind temperature is 8 DEG C, cooling
Wind flow is 15000m3/ h, cooling wind pressure 1500Pa, wind speed are received after melt-blown micro fibre is cooling using curtain net in 2m/s
Acquisition means or beaming device carry out boundling, and gained melt-blown micro fibre average diameter is 1 μm.
(2) preposition electret processing is carried out to melt-blown micro fibre: to the ultra-fine fibre of melt-blown by the way of high-voltage corona discharge
Dimension carries out preposition electret processing, and electret voltage is 20kV, electret interval 30mm, electret time 10s.
(3) electrostatic spinning superfine fibre and bundle of composite fibers are prepared: preparing the ultra-fine fibre of Static Spinning using electrostatic spinning apparatus
Dimension, electrostatic spinning apparatus use PLA melt electrostatic spinning, PLA raw material before carrying out electrostatic spinning 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 pushes 2kPa, and melt temperature is
200℃.Melt-blown micro fibre is compound together with the electrostatic spinning superfine fibre that the electrostatic spinning syringe needle of electrostatic spinning apparatus sprays, and obtains
To bundle of composite fibers, bundle of composite fibers is further carried out the processing of postposition electret, and electret parameter and the processing of preposition electret are consistent, obtain
To electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
(4) electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers boundling 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, has biodegradability, biocompatibility, subsequent
It can be processed into medical and hygiene article etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. preparing the device of composite ultrafine fiber beam 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 boundling
Device；
Melt-blown micro fibre of the cooling beaming device setting below device for melt blowing (1), for being sprayed to device for melt blowing (1)
(6) cooling and boundling is carried out；
The electrostatic spinning and electret device (5) are used to prepare electrostatic spinning superfine fibre, and electrostatic spinning superfine fibre and melt-blown is 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 processing of condensating fiber Shu Jinhang electret, obtains electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers；
The cooling beaming device includes packaged air conditioner (2) and curtain net reception device (3)；
The lower section of meltblown beam is arranged in device for melt blowing (1) in the packaged air conditioner (2), for melting to device for melt blowing (1) ejection
Spraying super-fine-fiber (6) is cooled down, and curtain net reception device (3) setting is below packaged air conditioner (2), for after cooling molten
Spraying super-fine-fiber (6) carries out boundling；The curtain net reception device (3) along meltblown beam in device for melt blowing (1) breadth direction,
By one end far from electrostatic spinning and electret device (5), it is driven to one end close to electrostatic spinning and electret device (5).
2. the device according to claim 1 for being prepared composite ultrafine fiber beam using melt-blown and electrostatic spinning, feature are existed
In: the cooling beaming device includes packaged air conditioner (2) and beaming device (4)；The packaged air conditioner (2) is arranged in 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) setting is below packaged air conditioner (2), for carrying out boundling to melt-blown micro fibre after cooling (6)；The beaming device (4)
Along breadth direction width not less than meltblown beam in device for melt blowing (1) along the width in breadth direction.
3. the device according to claim 1 or 2 for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, feature
It is, the distance between lower surface of meltblown beam range is 5- in packaged air conditioner (2) upper surface and device for melt blowing (1)
10cm, width of the packaged air conditioner (2) along breadth direction be in device for melt blowing (1) meltblown beam along 1.1 times of width of breadth direction-
1.25 again.
4. the device according to claim 1 or 2 for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, feature
It is, the packaged air conditioner (2) includes refrigeration equipment, the apparatus of air conditioning, blower, pipeline, side-blown wind system and control system；
The side-blown wind system includes air duct (21), cabinet (22), porous plate (23) and air outlet；Air duct (21) setting exists
On cabinet (22), for entering the wind；
The porous plate (23) uses thickness range for the stainless steel plate of 2-3mm, and percent opening range is 50%-80%, individually
Bore dia range is 1-3mm, and the quantity of the porous plate (23) is 1-3 block, and is placed in parallel in cabinet；
The cabinet is the rectangular parallelepiped structure that side is provided with air outlet, and the air outlet sprays molten in face of device for melt blowing (1)
Spraying super-fine-fiber (6), cold wind blow to the melt-blown micro fibre (6) of device for melt blowing (1) ejection by air outlet；
The air outlet includes damping screen (24) and deflector (25), and the deflector (25) uses aluminum honeycomb plate, thickness model
It encloses for 30-50mm, distance L range is 3-5mm between single each pair of parallel face of honeycomb hole；Deflector (25) two sides are provided with
Damping screen (24)；The damping screen (24) is the stainless (steel) wire or brass screen of 60-150 mesh；
The cabinet (22) remove air outlet one side is installed other several times outer surface on be also covered with insulating layer.
5. the device according to claim 1 for being prepared composite ultrafine fiber beam using melt-blown and electrostatic spinning, feature are existed
In: the electrostatic spinning and electret device (5) include electrostatic spinning apparatus (51) and postposition electret processing unit (52), it is described quiet
Electric spinning device (51) is used to prepare 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 postposition electret processing unit (52) is used for melt-blown micro fibre and electrostatic spinning superfine fibre
Carry out electret processing.
6. the device according to claim 1 for being prepared composite ultrafine fiber beam using melt-blown and electrostatic spinning, feature are existed
In: it is additionally provided with preposition electret processing unit (7) between the cooling beaming device and electrostatic spinning and electret device (5), uses
In to melt-blown micro fibre progress electret processing.
7. the method for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, which comprises the following steps:
Step S1, device for melt blowing (1) is prepared melt-blown micro fibre (6), and melt-blown micro fibre (6) is delivered to cooling collection and is got one's things ready
It sets；
Step S2, cooling beaming device carries out cooling and boundling to the melt-blown micro fibre (6) that device for melt blowing (1) sprays；It is described
The cooling beaming device of step S2 includes packaged air conditioner (2) and curtain net reception device (3)；The step S2 specifically: packaged air conditioner (3)
Melt-blown micro fibre (6) is cooled down, melt-blown micro fibre (6) after cooling, which successively falls along in device for melt blowing (1), melts
In the curtain net reception device (3) of the breadth direction transmission of jet mould head, curtain net reception device (3) is to melt-blown micro fibre (6) boundling
Obtain superfine fibre beam；
Step S3, electrostatic spinning and electret device (5) prepare electrostatic spinning superfine fibre, by electrostatic spinning superfine fibre and are meltblown 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 processing, obtains electret melt-blown fiber/electrostatic spinning superfine fibre bundle of composite fibers.
8. the method according to claim 7 for preparing composite ultrafine fiber beam using melt-blown and electrostatic spinning, feature exist
In the cooling beaming device of the step S2 includes packaged air conditioner (2) and beaming device (4)；The step S2 specifically: described cold
Bellows cool down the melt-blown micro fibre (6) of the ejection of device for melt blowing (1), and the beaming device (4) is to after cooling molten
Spraying super-fine-fiber (6) carries out boundling；And width of the beaming device (4) along breadth direction is melted not less than in device for melt blowing (1)
Width of the jet mould head along breadth direction.
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| CN107604536B (en) * | 2017-09-12 | 2020-08-25 | 曾林涛 | Preparation method and device of fluffy elastic three-dimensional micro-nano fiber material, fiber material prepared by method and application of fiber material |
| CN107675354B (en) * | 2017-09-30 | 2024-01-09 | 武汉每时工业发展有限公司 | Method and device for preparing three-component sound-absorbing cotton by electrostatic spinning, melt blowing and dry method web forming |
| CN109569092A (en) * | 2018-11-07 | 2019-04-05 | 嘉兴富瑞邦新材料科技有限公司 | A kind of HVAC electret nanofiber filtration material and preparation method thereof |
| CN111519263A (en) * | 2020-04-23 | 2020-08-11 | 东华大学 | Light medium-low frequency sound absorption material and preparation method thereof |
| CN111910274B (en) * | 2020-09-02 | 2023-03-31 | 江科 | Device and method for jet fiber electrostatic electret and fiber drawing of non-woven fabric by melt-blowing method |
| CN111979644A (en) * | 2020-09-02 | 2020-11-24 | 深圳市瀚粤实业有限公司 | Preparation method for forming strong electrostatic cloth by fusing plastic melt spinning with low-pressure water mist silk |
| CN112575444A (en) * | 2020-11-23 | 2021-03-30 | 南通纺织丝绸产业技术研究院 | High-protection high-moisture-permeability nanofiber membrane and preparation of medical protective equipment thereof |
| CN112755651B (en) * | 2020-12-31 | 2022-07-08 | 东华大学 | Multi-combination functional electrostatic spinning submicron fiber air filter material and preparation thereof |
| CN113417133A (en) * | 2021-06-17 | 2021-09-21 | 广西德福莱医疗器械有限公司 | Melt-blown fabric electret method |
| CN114150436B (en) * | 2021-12-06 | 2022-10-18 | 美埃(中国)环境科技股份有限公司 | Nano fiber composite electret material and preparation method thereof |
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| JP2007063679A (en) * | 2005-08-29 | 2007-03-15 | Teijin Fibers Ltd | Device for cooling yarn |
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