CN105780150B - Handheld portable liquid spray apparatus - Google Patents
Handheld portable liquid spray apparatus Download PDFInfo
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- CN105780150B CN105780150B CN201610145334.7A CN201610145334A CN105780150B CN 105780150 B CN105780150 B CN 105780150B CN 201610145334 A CN201610145334 A CN 201610145334A CN 105780150 B CN105780150 B CN 105780150B
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- airway tube
- catheter
- nozzle
- piston
- plate
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
Abstract
The invention discloses a kind of handheld portable liquid spray apparatus, it is related to micro-nano spining technology field.The device includes flow generator, piston, airway tube, catheter, nozzle and solution storage device, it is characterised in that：The inwall of gas generator is slidably installed with piston, piston base pit is coated with hollow flow-guiding plate, airway tube is connected with the first flexible pipe with solution storage device, airway tube is provided with regulating valve and baffle plate, hollow flow-guiding plate bottom is provided with spring, spring bottom is provided with elastic ball, flow generator bottom is provided with bottom plate, bottom plate center is provided with air admission hole, catheter is installed on solution storage device, and nozzle is connected with catheter, and nozzle is connected with the second flexible pipe with airway tube, hollow flow-guiding plate side wall has extended transversely through at least one gas port, and gas port is connected with airway tube.The handheld portable liquid spray apparatus that the present invention is provided has simple to operate, it is easy to adjust web size and dimension, can preferably realize the orientated deposition of fiber, the convenient advantage for obtaining micro nanometer fiber.
Description
Technical field
The present invention relates to micro-nano spining technology field, more particularly to a kind of handheld portable liquid spray apparatus.
Background technology
Sub-micron to nano level superfine fibre has the aperture for the non-woven material that size is small, specific surface area is high, prepare
The characteristic such as small, porosity is high, can be widely applied to medical material, fine filtering material, oil absorption material, heat insulating material, battery every
The every field such as plate and air cleaning.Have due to the non-woven material that micro nanometer fiber is made before good and wide application
Scape, its technology of preparing turns into study hotspot both domestic and external.
Traditional commercial process, which prepares non-woven material method, mainly acupuncture spinning, spun lacing method, Hot rolling etc..But these sides
Raw material used in method is mostly conventional chemical fibre, and fibre diameter is in 10 microns, and specific surface area is smaller, to medical material, finely
The application and exploitation of filtering material product are limited.And be all maximization production equipment, complex operation, power consumption is big.
At present, micro-nano non-woven material mainly sprays the technologies such as spinning by electrostatic spinning, melt-spraying spinning and liquid and prepared
's.Early in, U.S. patent Nos in 1934（US1975504）Point out that electric field force carries out spinning, its core is the height in electric field force
Carried out under fast stretching action.The bottleneck problem of restriction electrostatic spinning is that it yields poorly at present.At present, most of micro nanometer fibers are
Prepared by technologies such as electrostatic spinning and melt-spraying spinnings.Early in, U.S. patent Nos in 1934（US1975504）Point out electric field
Power carries out spinning, and its core is carried out under the high-speed stretch effect of electric field force.The bottleneck problem of restriction electrostatic spinning is at present
It yields poorly.Although United States Patent (USP)（US6616435B2, US6713011B2）Many nozzle continuous electrostatic spinning devices are devised,
European patent（WO2005024101）Devise and a kind of revolved without shower nozzle nanofiber spinning-drawing machine by metal bar with positive charge
Turn to draw solution and take solution the surface of metal bar out of to form Taylor cones, silk reception is drawn under electrostatic field
To the reception device of outside.But in multi-nozzle electrospinning system, the jet that peripheral showerhead is ejected is because by adjacent spray
Headband has the Coulomb repulsion of like charges jet, causes the nanofiber that peripheral showerhead sprays to disperse, and becomes electrospinning process
It must be difficult to control to.And without nozzle electrospinning device it is demonstrated experimentally that when metal bar rotates in a polymer solution, in high pressure
Under electrostatic interaction, meeting splashes, it is impossible to centralized collection to reception device.Therefore, in actual application, electrostatic spinning is set
Standby exist needs high voltage power supply, the limitation such as fiber deposition non-directional, seriously constrains the popularization and application of micro nanometer fiber material.
Meltblown is to have been commercialized to prepare micro nanometer fiber technical method at present, and its relevant technical literature mainly includes the U.S.
Patent（US3959421, US5075068）, this method is after polymer melt is extruded through spinneret, through two strands of high-speed and high-temperatures
Hot-air carries out drawing-off and is refined into superfine fibre.The polymer fluid of melting is needed in the spinning process, high-speed and high-temperature
Hot-air, its power consumption is larger, and spun fibre diameter is more than 1 micron.Based on electrostatic spinning and melt blown technology, polymer is molten
Liquid jet spinning（Liquid sprays）New technology gradually grows up, and Chinese patent ZL201110041792.3 points out that this method is using many
The convergent high velocity air of stock carries out ultra-fine stretching to fibre-forming polymer solution jet and is allowed to desolvated generation nanofiber.In
State patent ZL201410150476.3 carries out distribution of air flow using Multi-stage airflow chamber, to obtain the liquid spray spinning of large-scale production
Die head.But due to providing individually annular attenuating blast for each solution extrusion thread, air-flow is arranged in parallel with spinneret orifice, air-flow
Between easily interfere, cause spinning uneven or doubling phenomena.In addition, the big quality of solution spray device volume is big at present, need
Want air compressing device, and for consumption is few, multi items materials（Such as coating material）Development and utilization limitation is big.Therefore, need
Seek to design a kind of light weight small volume easy to carry, it is simple to operate without air compression system, it can realize that fiber alignment is deposited
Novel liquid jet micro nanometer fiber device.
The content of the invention
In view of the above-mentioned problems existing in the prior art, the invention provides a kind of handheld portable liquid spray apparatus, the hand
Holding portable liquid spray apparatus has that small volume light weight is easy to carry, and hand-held is simple, it is easy to adjust web size and
Shape, can preferably realize the orientated deposition of fiber, can conveniently obtain the advantage of micro nanometer fiber, technical scheme is such as
Under：
The embodiments of the invention provide a kind of handheld portable liquid spray apparatus, including flow generator, piston, airway tube,
Catheter, nozzle and solution storage device, it is characterised in that：The inwall of the flow generator and the piston are slidably matched peace
It is coated with to fix with the airway tube at the top of hollow flow-guiding plate, the hollow flow-guiding plate in dress, the pit of the piston base and connects
Connect, the first flexible pipe is connected between the airway tube and the solution storage device, the airway tube upper end is provided with regulating valve, institute
State predetermined position on airway tube and be also equipped with baffle plate, and be placed in above the piston, first flexible pipe is placed in the baffle plate
Top, the hollow flow-guiding plate bottom is provided with the spring being fixedly connected, and the spring bottom is provided with the elastic ball being fixedly connected, institute
State flow generator bottom and bottom plate is installed, the bottom plate center is provided with air admission hole, and the catheter is fixedly mounted on described molten
In liquid holder, and it is placed at the top of the catheter outside the solution storage device, the nozzle and phase at the top of the catheter
The second flexible pipe is connected between at the top of connection, the nozzle and the airway tube, the hollow flow-guiding plate side wall has been extended transversely through
At least one gas port, and the gas port is connected with the airway tube.
Further, the flow generator also includes gas filter plate, and the gas filter plate has at least one mistake
Filter opening, the gas filter plate is located at below the bottom plate.
Further, the elastic ball is placed in directly over the air admission hole, and the diameter of the elastic ball enters more than described in
Hole diameter.
Further, the nozzle is shaped as cone, and angle is between 15 ° and 30 °.
Further, the ratio between sectional area of the sectional area of the catheter and the airway tube is 1:3.
Compared with prior art, the handheld portable liquid spray apparatus that the present invention is provided has advantages below：
The light weight small volume of handheld portable liquid spray apparatus is easy to carry, without equipment such as external air compressor machines, during work
Required energy consumption is small, simple to operate and be not affected by the external environment, while can preferably realize that the orientation of micro nanometer fiber is applied
Apply, can be in medical coating material, the multiple fields application, the advantage especially in terms of small area wound repair such as filtering adsorbing material
Substantially.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the present invention
Example, and in specification together for explaining principle of the invention.
Fig. 1 is a kind of schematic device of handheld portable liquid spray apparatus according to an exemplary embodiment.
Fig. 2 is a kind of gas port schematic diagram of hollow flow-guiding plate according to an exemplary embodiment.
Fig. 3 is a kind of schematic device of handheld portable liquid spray apparatus according to another exemplary embodiment.
Fig. 4 is a kind of schematic diagram of gas filter plate according to another exemplary embodiment.
Fig. 5 is a kind of application method of handheld portable liquid spray apparatus according to an exemplary embodiment.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the present invention.
Fig. 1 is a kind of schematic device of handheld portable liquid spray apparatus according to an exemplary embodiment, the hand
Hold portable liquid spray apparatus, including flow generator 10, piston 11, airway tube 12, catheter 13, nozzle 14 and solution storage device
15, it is characterised in that：The inwall of the flow generator 10 is slidably installed with the piston 11, the bottom of piston 11
Hollow flow-guiding plate 16 is coated with pit, the top of hollow flow-guiding plate 16 is fixedly connected with the airway tube 12, the air guide
The first flexible pipe 17 is connected between pipe 12 and the solution storage device 15, the upper end of airway tube 12 is provided with regulating valve 18, institute
State predetermined position on airway tube 12 and be also equipped with baffle plate 19, and be placed in the top of piston 11, first flexible pipe 17 is placed in
The top of baffle plate 19, the bottom of hollow flow-guiding plate 16 is provided with the spring 20 being fixedly connected, and the bottom of spring 20 is provided with solid
Surely the elastic ball 21 connected, the bottom of flow generator 10 is provided with bottom plate 22, and the center of bottom plate 22 is provided with air admission hole, institute
Catheter 13 is stated to be fixedly mounted in the solution storage device 15, and the top of the catheter 13 is placed in the solution storage device 15
Outside, the nozzle 14 is connected with the top of catheter 13, is connected between the top of nozzle 14 and the airway tube 12
Have the second flexible pipe 23, the side wall of hollow flow-guiding plate 16 has extended transversely through at least one gas port 24, and the gas port 24 with
The airway tube 12 is connected.
Wherein, the lower ending opening of the airway tube 12 can be that vertically downward, the lower ending opening of the airway tube 12 can be with
It is horizontally oriented.
In order to which the distribution situation further to each gas port 24 in hollow deflector 16 is illustrated, the embodiment of the present invention
It also show Fig. 2.
Need to illustrate a bit, when handheld portable liquid spray apparatus provided in an embodiment of the present invention is in the shape that do not work
State, i.e., when regulating valve 18 is not pressed, elastic ball 21 can seal base 22 just air admission hole, but the embodiment of the present invention is not right
Restriction is made in the position of elastic ball 21 during non-working condition.
Need explanation on the other hand, regulating valve 18 can be push button, the regulating valve 18 is used to modulate airway tube 12
Aisle spare, so as to adjust into airway tube 12 gas flow velocity size.
In addition, the first flexible pipe 17 is higher than the liquid level of spinning solution in solution storage device 15 in the port height of solution storage device 15
Highly.
When handheld portable liquid spray apparatus provided in an embodiment of the present invention is in running order, i.e., regulating valve 18 is pressed
When, the first flexible pipe 17 and the second flexible pipe 23 can be with the moving and move up and down in vertical direction of airway tube 12, and this hair
Material of the bright embodiment not to the first flexible pipe 17 and the second flexible pipe 23 makes restriction.
Further, in a kind of handheld portable liquid spray apparatus shown in another exemplary embodiment shown in Fig. 3
In schematic device, flow generator 10 also includes gas filter plate 25, and the gas filter plate 25 is filtered with least one
Hole, the gas filter plate 25 is located at the lower section of bottom plate 22.
By setting gas filter plate 25 below the bottom plate 22 of flow generator 10, ambient atmos can be avoided to pass through
Bulky grain pollution impurity is brought into flow generator 10 when the air admission hole of bottom plate 22 enters flow generator 10, is led so as to avoid
Spinning solution is contaminated in the blocking of tracheae 12 and solution storage device 15.It should be noted that the gas filter plate 25 can be with
It is disassembled, consequently facilitating cleaning.
Wherein, the schematic diagram of gas filter plate 25 can be as shown in Figure 4.
It should be noted that the shape of shape not to the gas filter plate 25 of the embodiment of the present invention and filter bores is done
Go out to limit.
Further, the elastic ball 21 is placed in directly over the air admission hole, and the diameter of the elastic ball 21 is more than institute
State air inlet bore dia.
Further, the nozzle 14 is shaped as cone, and angle is between 15 ° and 30 °.
Further, the ratio between sectional area of the sectional area of the catheter 13 and the airway tube 12 is 1:3.
Wherein, solution storage device 15 can also have the opening for being used for injecting spinning solution and the lid supporting with the opening
Son.
Fig. 5 is a kind of application method of handheld portable liquid spray apparatus according to an exemplary embodiment, this method
Applied to above-mentioned handheld portable liquid spray apparatus, including：
Step 601, press regulating valve so that airway tube is moved down together with hollow flow-guiding plate, and drive hollow flow-guiding plate to connect
The elastic ball of the spring other end block the air admission hole of bottom plate so that by the air seal in flow generator, wherein, it is hollow to lead
Stream plate progressively disengages the pit of piston base when moving down so that at least one gas port of hollow flow-guiding plate side wall is exposed to gas
In the sealing gas of flow-generator.
Sealing gas in flow generator is divided into top half and the latter half by piston.
It should be noted that after pressure regulator valve is pressed, elastic ball falls to blocking air admission hole so that under in flow generator
The sealing gas of half part cannot be introduced into outside flow generator.
At least one gas port on the wall of hollow flow-guiding plate side is wrapped by the work of hollow flow-guiding plate before regulating valve is pressed
Plug is blocked, after regulating valve is pressed, and gas port exposes, lower half in flow generator as hollow flow-guiding plate departs from piston
The sealing gas divided can enter gas port.
Step 602, airway tube is moved down into pre-determined distance, makes the baffle plate and piston contact on airway tube, and with airway tube
Move down promotion piston move down together, so that sealing gas is pressed at least one gas port, the sealing gas passes through at least
One gas port enters in airway tube, then respectively enters the first flexible pipe and the second flexible pipe by airway tube.
Baffle plate is arranged at the fixed position outside airway tube.When airway tube is not displaced downwardly to pre-determined distance, piston is in gas
Position in flow-generator does not change；When airway tube is displaced downwardly to pre-determined distance, baffle plate will be located to push away under piston, so that
Obtain the sealing gas air pressure increase of flow generator the latter half and be pressed into airway tube.
Step 603, the spinning solution in solution storage device is pressed into by catheter by the sealing gas into the first flexible pipe, and
Spinning solution is sent into nozzle by catheter.
Sealing gas into the first flexible pipe causes the air pressure in solution storage device above spinning solution to increase, above spinning solution
The draught head of air pressure and catheter upper end the spinning solution in solution storage device is pressed into catheter.
Step 604, the spinning solution in nozzle is carried out by liquid spray by the sealing gas into the second flexible pipe, obtains micro-nano
Fiber.
Sealing gas into the second flexible pipe is at the position where passing through pressure regulator valve, the air guide that can be modulated according to pressure regulator valve
Tube passage size and produce different air-flows, after the air-flow is by the second flexible pipe, the spinning solution liquid of catheter input nozzle is sprayed
To preset direction, so as to prepare micro nanometer fiber.
Step 605, regulating valve is unclamped so that spring springs into hollow flow-guiding plate the pit of piston base, and promotes piston
Move up, so that elastic ball be removed from the air admission hole of bottom plate so that ambient atmos enter flow generator from air admission hole.
Optionally, spring springs into hollow flow-guiding plate after the pit of piston base, hollow flow-guiding plate side wall at least one
Gas port is by piston seal.
At least one gas port of hollow flow-guiding plate side wall is after piston seal, and spring continues hollow flow-guiding plate upward
Ejection so that the gas pressure intensity of flow generator the latter half diminishes, the elastic force of ambient pressure and spring cause elastic ball from
The air admission hole of bottom plate departs from, and ambient atmos enter flow generator from air admission hole.
It should be noted that when ambient atmos enter flow generator from air admission hole, the hand-portable that the present invention is provided
The application method of formula liquid spray apparatus can also will enter the outer of flow generator by the filter bores filtering on gas filter plate
Boundary's gas.
Handheld portable liquid spray apparatus and its application method that the present invention is provided have the matter of handheld portable liquid spray apparatus
Measure light small volume easy to carry, without equipment such as external air compressor machines, required energy consumption is small during work, it is simple to operate and not by the external world
The advantages of ambient influnence, while the orientation coating of micro nanometer fiber can be realized preferably, it can filter and inhale in medical coating material
The multiple fields application such as enclosure material, it is especially with the obvious advantage in terms of small area wound repair.
It is beneficial that the present invention is illustrated by the following examples that the handheld portable liquid spray apparatus that provides of the present invention brought
Effect, wherein, spinning solution used in embodiment A is PEO, and spinning solution used in embodiment B is polyacrylonitrile,
Spinning solution used in embodiment C is PLA：
Embodiment A
By PEO（PEO, molecular weight 350,000）4g is dissolved in 96mL deionized waters, is matched somebody with somebody in normal temperature stirred in water bath
Mass concentration is made for the 4% transparent polymer dope without precipitation, and is placed into solution storage device.Regulation is depressed multiple times
Pressure valve produces high velocity air, micro nanometer fiber is made, distribution of fiber diameters is between 800nm~3000nm.
Embodiment B
By polyacrylonitrile（PAN, molecular weight 70,000）10g is dissolved in 90g dimethyl acetamides, in 60 degree of stirred in water bath
Mass concentration is configured to for the 10% transparent polymer dope without precipitation, and is placed into solution storage device.Press regulation pressure
Valve, is made PAN micro nanometer fibers, distribution of fiber diameters is between 400nm~1200nm.
Embodiment C
By PLA（PLA, relative molecular mass is 1.0 × 105）12g is dissolved in 188mL dichloromethane solvents, normal
Stirring is configured to mass concentration for the 6% transparent polymer dope without precipitation in warm water domain, and puts it into fluid storage tanks
In.Regulation pressure valve is pressed, PLA micro nanometer fibers are made, distribution of fiber diameters is between 700nm~3000nm.
It can be seen that, the fiber drug abuse that the handheld portable liquid spray apparatus provided by using the present invention is prepared can reach micro-
Nanoscale, and the handheld portable liquid spray apparatus of the invention provided and its application method have the quality of handheld portable liquid spray apparatus
Light small volume is easy to carry, and without equipment such as external air compressor machines, required energy consumption is small during work, simple to operate and not by extraneous ring
The advantages of border influences, while the orientation coating of micro nanometer fiber can be realized preferably, can filter absorption in medical coating material
The multiple fields application such as material, it is especially with the obvious advantage in terms of small area wound repair.
Although being described in detail above with general explanation, embodiment and experiment to the present invention,
But on the basis of the present invention, it can be modified or improved, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Those skilled in the art will readily occur to the other of the present invention after the invention of specification and practice here is considered
Embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Adaptations follow the general principle of the present invention and including undocumented common knowledge in the art of the invention or
Conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by above-mentioned power
Profit requires to point out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (5)
1. a kind of handheld portable liquid spray apparatus, including flow generator, piston, airway tube, catheter, nozzle and solution storage
Device, it is characterised in that：The inwall of the flow generator is slidably installed with the piston, in the pit of the piston base
It is coated with the top of hollow flow-guiding plate, the hollow flow-guiding plate and is fixedly connected with the airway tube, the airway tube and the solution
It is connected with the first flexible pipe between holder, the airway tube upper end is provided with regulating valve, the airway tube predetermined position also
Baffle plate is installed, and is placed in above the piston, first flexible pipe is placed in above the baffle plate, the hollow flow-guiding plate bottom
Provided with the spring being fixedly connected, the spring bottom is provided with the elastic ball being fixedly connected, and the flow generator bottom is provided with
Bottom plate, the bottom plate center is provided with air admission hole, and the catheter is fixedly mounted in the solution storage device, and the catheter
Top is placed in outside the solution storage device, and the nozzle at the top of the catheter with being connected, the nozzle and the air guide
The second flexible pipe is connected between tube top portion, the hollow flow-guiding plate side wall has extended transversely through at least one gas port, and described led
Stomata is connected with the airway tube.
2. device according to claim 1, it is characterised in that the flow generator also includes gas filter plate, described
Gas filter plate has at least one filter bores, and the gas filter plate is located at below the bottom plate.
3. device according to claim 1, it is characterised in that the elastic ball is placed in directly over the air admission hole, and institute
The diameter for stating elastic ball is more than the air inlet bore dia.
4. device according to claim 1, it is characterised in that the nozzle is shaped as cone, angle between 15 ° and
Between 30 °.
5. device according to claim 1, it is characterised in that the section of the sectional area of the catheter and the airway tube
The ratio between product is 1:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145334.7A CN105780150B (en) | 2016-03-15 | 2016-03-15 | Handheld portable liquid spray apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145334.7A CN105780150B (en) | 2016-03-15 | 2016-03-15 | Handheld portable liquid spray apparatus |
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| CN105780150A CN105780150A (en) | 2016-07-20 |
| CN105780150B true CN105780150B (en) | 2017-11-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0224052D0 (en) * | 2002-10-16 | 2002-11-27 | Hartley Brian | Paint spraying device |
| CN101387015A (en) * | 2008-10-24 | 2009-03-18 | 暨南大学 | Method for preparing polylactic acid nano fiber |
| CN201344106Y (en) * | 2008-12-08 | 2009-11-11 | 林治平 | Manual high-pressure air pump |
| CN102071542B (en) * | 2011-02-22 | 2012-08-29 | 天津工业大学 | Method for preparing polymeric nano-micro fiber non-woven fabric |
| CN102220649B (en) * | 2011-04-24 | 2012-07-11 | 兰州大学 | Preparation method of nanofiber |
| CN103882535B (en) * | 2014-04-11 | 2017-05-17 | 天津工业大学 | Solution jetting spinning die head |
| CN104532368B (en) * | 2015-01-27 | 2018-01-09 | 嘉兴学院 | A kind of loading and unloading type is adjustable long shuttle-type solution jet spinning nozzle and its application method |
| CN105040121B (en) * | 2015-06-26 | 2017-09-05 | 上海工程技术大学 | A kind of apparatus and method for the liquid blown non-woven spinning for producing micro nanometer fiber |
| KR101589513B1 (en) * | 2015-08-12 | 2016-01-28 | 엔에프테크 주식회사 | Uniform Weighted Nano Fiber Manufacturing Apparatus by Top-down Type Electrospun |
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Address after: No. 1288 PV Xiuzhou District Branch Chong Park Jiaxing 314001 Zhejiang Province Kang Road No. 2 building Patentee after: Jiaxing University Address before: 314001 Yuexiu South Road, Zhejiang, No. 56, No. Patentee before: Jiaxing University |