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CN105297288A - Preparation device for melt-blown non-woven fabric - Google Patents

Preparation device for melt-blown non-woven fabric Download PDF

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Publication number
CN105297288A
CN105297288A CN201510768771.XA CN201510768771A CN105297288A CN 105297288 A CN105297288 A CN 105297288A CN 201510768771 A CN201510768771 A CN 201510768771A CN 105297288 A CN105297288 A CN 105297288A
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CN
China
Prior art keywords
spinning
melt
nozzle
woven fabrics
preparation facilities
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Pending
Application number
CN201510768771.XA
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Chinese (zh)
Inventor
陈廷
吴丽莉
吴敏东
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Jiangyin Jin Gang Non-Woven Co Ltd
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Jiangyin Jin Gang Non-Woven Co Ltd
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Application filed by Jiangyin Jin Gang Non-Woven Co Ltd filed Critical Jiangyin Jin Gang Non-Woven Co Ltd
Priority to CN201510768771.XA priority Critical patent/CN105297288A/en
Publication of CN105297288A publication Critical patent/CN105297288A/en
Pending legal-status Critical Current

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  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention discloses a preparation device for melt-blown non-woven fabric. The preparation device comprises a spinning nozzle used for extruding a melt, an airflow channel used for guiding a high-speed airflow to draw the melt, a high-voltage static generator used for generating high-voltage static to draw the melt and a receiving roller used in cooperation with the spinning nozzle to form the non-woven fabric. The outlet end of the airflow channel is close to an outlet of the spinning nozzle, the spinning nozzle is connected with a positive electrode of the high-voltage static generator, and the receiving roller is grounded. By connecting the high-voltage static generator to the spinning nozzle and grounding the receiving roller, the melt can be subjected to dual drawing in the drawing process; as the polymer melt is subjected to the dual effects of drawing force (airflow force for short) generated by the high-speed high-temperature airflow and drawing force (electric field force for short) generated by a high-voltage static electric field after being extruded out of a spinneret orifice, fibers are thinner and can reach the nanometer scale; meanwhile, the production technology can be applied to large-scale production.

Description

A kind of melt spraying non-woven fabrics preparation facilities
Technical field
The present invention relates to a kind of melt spraying non-woven fabrics preparation facilities.
Background technology
Non-weaving cloth refers to without common operation of spinning cotton and weaving cloth, the sheet-like article be directly made up of fiber.The advantage of non-woven processing is that technological process is short, speed of production is high, product purpose is wide.Melt-blown is a kind of main method preparing not weaving fabric of superfine fiber.It utilizes high-speed and high-temperature air-flow that polymer melt is drawn into superfine fibre.Superfine fibre refers to the fiber of diameter between 1mm to 5mm.Melt-blowing nonwoven is due to fiber fine, thus there is the advantages such as the many and aperture of hole is little, tree root shape channel system can be formed, filter efficiency reaches more than 99.9%, be widely used in the fields such as metallurgy, chemical industry, medicine, machinery, electronics, food, nuclear industry, automobile, also can be used as the advanced filters of the depollution of environment and biologic cleanliness.
A Main Trends of The Development of melt-blown non-woven technology is the further refinement of fiber, or even prepares nanofiber.If fibre diameter can reach nanometer scale, so the strainability of its goods and absorption property will significantly improve, and have good application prospect in the field such as biology, medicine, national defence, electronics.Prior art is badly in need of a kind of melt spraying non-woven fabrics preparation facilities can preparing nanometer scale fiber.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, a kind of melt spraying non-woven fabrics preparation facilities can preparing nanometer scale fiber is provided.
For achieving the above object, technical scheme of the present invention there is provided a kind of melt spraying non-woven fabrics preparation facilities, comprise for the spinning-nozzle of melt extrusion, to make the gas channel of melt drawn for the high velocity air that leads, obtain for generation of high-pressure electrostatic the HV generator of melt drawn and with spinning-nozzle with the use of and form the reception roller of nonwoven fabric; The port of export of described gas channel is near the outlet of spinning-nozzle; Described spinning-nozzle is connected with the positive electrode of HV generator, described reception roller ground connection.By connecting HV generator and roller ground connection will be received on spinning-nozzle; melt can be made in drawing process to be subject to double tension; polymer melt is from the double action of tensile force (abbreviation electric field force) being subject to tensile force (being called for short air-flow power) that high-speed and high-temperature air-flow produces and high-voltage electrostatic field generation after spinneret orifice is extruded; make fiber more refinement; can reach Nano grade, such production technology can large-scale production simultaneously.
As preferably, described spinning-nozzle and gas channel are all arranged in spinning dies, and described spinning-nozzle insulate with spinning dies and is connected.Such design prevents positive electricity from leaking outside.
As preferably, insulated by ceramic fiber blanket between described spinning-nozzle and spinning dies.Such design realizes insulation preferably, and this melt-blown electrostatic spinning device ceramic fiber blanket used can tolerate the high temperature of 1000 ° of C, and has excellent electrical insulation capability.
As preferably, described spinning-nozzle is bonding by high-temperature-resistant adhesive with between ceramic fiber blanket.This melt-blown electrostatic spinning device high-temperature-resistant adhesive used can tolerate the high temperature of 1000 ° of C.
As preferably, fixed bonding between described ceramic fiber blanket and spinning dies.Such design makes spinning-nozzle fixing-stable.
As preferably, described gas channel inlet end is connected with gas manifold.Such design is the one optimization to scheme.
As preferably, also comprise the screw extruder, heater block and the measuring pump that are arranged on spinning dies preceding working procedure, described measuring pump is communicated with spinning-nozzle by pipeline, and insulating between described pipeline and spinning-nozzle is arranged.Such design is the one optimization to scheme.
As preferably, the air-flow angle of described nozzle is 60 °, and width of rebate is 0.6mm, and head end width is 0.5mm, and orifice diameter is 0.3mm.Such design is the one optimization to scheme.
As preferably, the voltage of HV generator is 10kv ~ 100kv.Such design is the one optimization to scheme.
As preferably, described high-temperature-resistant adhesive is inorganic oxide copper high-temperature-resistant adhesive.Such design is the one optimization to scheme.
Advantage of the present invention is with beneficial effect: by being connected HV generator and will receiving roller ground connection on spinning-nozzle; melt can be made in drawing process to be subject to double tension; polymer melt is from the double action of tensile force (abbreviation electric field force) being subject to tensile force (being called for short air-flow power) that high-speed and high-temperature air-flow produces and high-voltage electrostatic field generation after spinneret orifice is extruded; make fiber more refinement; can reach Nano grade, such production technology can large-scale production simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: screw extruder-1, measuring pump-2, gas manifold-3, nozzle-4, ceramic fiber blanket-5, HV generator-7, reception roller-8, gas channel-9.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of melt spraying non-woven fabrics preparation facilities, comprise for the spinning-nozzle 4 of melt extrusion, to make the gas channel 9 of melt drawn for the high velocity air that leads, obtain for generation of high-pressure electrostatic the HV generator 7 of melt drawn and with spinning-nozzle 4 with the use of and form the reception roller 8 of nonwoven fabric; The port of export of described gas channel 9 is near the outlet of spinning-nozzle 4; Described spinning-nozzle 4 is connected with the positive electrode of HV generator 7, described reception roller 8 ground connection.
Described spinning-nozzle 4 and gas channel 9 are all arranged in spinning dies, and described spinning-nozzle 4 insulate with spinning dies and is connected.
Insulated by ceramic fiber blanket 5 between described spinning-nozzle 4 and spinning dies.
Described spinning-nozzle 4 is bonding by high-temperature-resistant adhesive with between ceramic fiber blanket 5.
Fixed bonding between described ceramic fiber blanket 5 and spinning dies.
Described gas channel 9 inlet end is connected with gas manifold 3.
Also comprise the screw extruder 1, heater block and the measuring pump 2 that are arranged on spinning dies preceding working procedure, described measuring pump 2 is communicated with spinning-nozzle 4 by pipeline, and insulating between described pipeline and spinning-nozzle 4 is arranged.
The air-flow angle of described nozzle 4 is 60 °, and width of rebate is 0.6mm, and head end width is 0.5mm, and orifice diameter is 0.3mm.
The voltage of HV generator 7 is 10kv ~ 100kv.
Described high-temperature-resistant adhesive is inorganic oxide copper high-temperature-resistant adhesive.
The embodiment of nanofiber is prepared to further illustrate the beneficial effect of above-mentioned melt-blown electrostatic spinning device below in conjunction with melt-blown electrostatic spinning device of the present invention.
Embodiment 1
Polymer melt (modified polypropene) is extruded from nozzle 4, and high-speed high-temperature gas sprays from gas channel 9, forms high-voltage electrostatic field (electrostatic potential 60kV) between nozzle 4 and reception roller 8.Wherein, the air-flow angle of nozzle 4 is 60 °, and width of rebate is 0.6mm, and head end width is 0.5mm, and orifice diameter is 0.3mm.Supply raw materials polypropylene, melt flow rate is 800g/10min, and flow is 0.031g/s, and initial temperature is 280 ° of C, and gas initial velocity is 340m/s, and gas initial temperature is 300 ° of C.
Under above-mentioned condition, the diameter mean value of obtained fiber is 451nm, and the fibre diameter mean value not applying the non-weaving cloth prepared by melt-blowing equipment of high-voltage electrostatic field under equal conditions is 1.42mm, applies fibre diameter after behind high-voltage electrostatic field and decreased 68.2% than originally.
Embodiment 2
Polymer melt (modified polypropene) is extruded from nozzle 4, and high-speed high-temperature gas sprays from gas channel 9, forms high-voltage electrostatic field (electrostatic potential 50kV) between nozzle 4 and reception roller 8.Wherein, the air-flow angle of nozzle 4 is 60 °, and width of rebate is 0.6mm, and head end width is 0.5mm, and orifice diameter is 0.3mm.Supply raw materials polypropylene, melt flow rate is 100g/10min, and flow is 0.008g/s, and initial temperature is 290 ° of C, and gas initial velocity is 480m/s, and gas initial temperature is 330 ° of C.
Under above-mentioned condition, the diameter mean value of obtained fiber is 875nm, and the fibre diameter mean value not applying the non-weaving cloth prepared by melt-blowing equipment of high-voltage electrostatic field under equal conditions is 2.59mm, applies fibre diameter after behind high-voltage electrostatic field and decreased 66.2% than originally.
Embodiment 3
Polymer melt (modified polypropene) is extruded from nozzle 4, and high-speed high-temperature gas sprays from gas channel 9, forms high-voltage electrostatic field (electrostatic potential 40kV) between nozzle 4 and reception roller 8.Wherein, the air-flow angle of nozzle 4 is 60 °, and width of rebate is 0.6mm, and head end width is 0.5mm, and orifice diameter is 0.3mm.Supply raw materials polypropylene, melt flow rate is 800g/10min, and flow is 0.057g/s, and initial temperature is 280 ° of C, and gas initial velocity is 320m/s, and gas initial temperature is 290 ° of C.
Under above-mentioned condition, the diameter mean value of obtained fiber is 859nm, and the fibre diameter mean value not applying the non-weaving cloth prepared by melt-blowing equipment of high-voltage electrostatic field under equal conditions is 2.51mm, applies fibre diameter after behind high-voltage electrostatic field and decreased 65.8% than originally.
Embodiment 4
Polymer melt (modified polypropene) is extruded from nozzle 4, and high-speed high-temperature gas sprays from gas channel 9, forms high-voltage electrostatic field (electrostatic potential 40kV) between nozzle 4 and reception roller 8.Wherein, the air-flow angle of nozzle 4 is 60 °, and width of rebate is 0.6mm, and head end width is 0.5mm, and orifice diameter is 0.3mm.Supply raw materials polypropylene, melt flow rate 75g/10min, flow is 0.006g/s, and initial temperature is 310 ° of C, and gas initial velocity is 530m/s, and gas initial temperature is 380 ° of C.
Under above-mentioned condition, the diameter mean value of obtained fiber is 996nm, and the fibre diameter mean value not applying the non-weaving cloth prepared by melt-blowing equipment of high-voltage electrostatic field under equal conditions is 2.78mm, applies fibre diameter after behind high-voltage electrostatic field and decreased 64.2% than originally.
Embodiment 5
Polymer melt (modified polypropene) is extruded from nozzle 4, and high-speed high-temperature gas sprays from gas channel 9, forms high-voltage electrostatic field (electrostatic potential 100kV) between nozzle 4 and reception roller 8.Wherein, the air-flow angle of nozzle 4 is 60 °, and width of rebate is 0.6mm, and head end width is 0.5mm, and orifice diameter is 0.3mm.Supply raw materials polypropylene, melt flow rate is 1000g/10min, and flow is 0.022g/s, and initial temperature is 290 ° of C, and gas initial velocity is 380m/s, and gas initial temperature is 310 ° of C.
Under above-mentioned condition, the diameter mean value of obtained fiber is 347nm, and the fibre diameter mean value not applying the non-weaving cloth prepared by melt-blowing equipment of high-voltage electrostatic field under equal conditions is 1.16mm, applies fibre diameter after behind high-voltage electrostatic field and decreased 70.1% than originally.
Illustrated by above embodiment, the present invention significantly can reduce the fibre diameter of melt-blowing nonwoven, and the diameter of prepared fiber reduces more than 64% than the diameter of fiber prepared by the melt-blowing equipment not applying electrostatic field, reaches nano-scale dimension.Simultaneously, as long as conventional meltblowing apparatus adheres to ceramic fiber blanket 5 at nozzle 4 external application high-temperature-resistant adhesive, and the positive electrode of nozzle 4 with HV generator 7 is connected, roller 8 ground connection will be received, melt-blown Static Spinning equipment can be repacked into, equipment miscellaneous part need not make any change, is conducive to cost-saving.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain invented.

Claims (10)

1. a melt spraying non-woven fabrics preparation facilities, is characterized in that: comprise for the spinning-nozzle of melt extrusion, to make the gas channel of melt drawn for the high velocity air that leads, obtain for generation of high-pressure electrostatic the HV generator of melt drawn and with spinning-nozzle with the use of and form the reception roller of nonwoven fabric; The port of export of described gas channel is near the outlet of spinning-nozzle; Described spinning-nozzle is connected with the positive electrode of HV generator, described reception roller ground connection.
2. melt spraying non-woven fabrics preparation facilities as claimed in claim 1, it is characterized in that: described spinning-nozzle and gas channel are all arranged in spinning dies, described spinning-nozzle insulate with spinning dies and is connected.
3. melt spraying non-woven fabrics preparation facilities as claimed in claim 2, be is characterized in that: insulated by ceramic fiber blanket between described spinning-nozzle and spinning dies.
4. melt spraying non-woven fabrics preparation facilities as claimed in claim 3, is characterized in that: described spinning-nozzle is bonding by high-temperature-resistant adhesive with between ceramic fiber blanket.
5. melt spraying non-woven fabrics preparation facilities as claimed in claim 4, is characterized in that: fixed bonding between described ceramic fiber blanket and spinning dies.
6. melt spraying non-woven fabrics preparation facilities as claimed in claim 5, is characterized in that: described gas channel inlet end is connected with gas manifold.
7. melt spraying non-woven fabrics preparation facilities as claimed in claim 6, it is characterized in that: also comprise the screw extruder, heater block and the measuring pump that are arranged on spinning dies preceding working procedure, described measuring pump is communicated with spinning-nozzle by pipeline, and insulating between described pipeline and spinning-nozzle is arranged.
8. melt spraying non-woven fabrics preparation facilities as claimed in claim 7, is characterized in that: the air-flow angle of described nozzle is 60 °, and width of rebate is 0.6mm, and head end width is 0.5mm, and orifice diameter is 0.3mm.
9. melt spraying non-woven fabrics preparation facilities as claimed in claim 8, is characterized in that: the voltage of HV generator is 10kv ~ 100kv.
10. melt spraying non-woven fabrics preparation facilities as claimed in claim 9, is characterized in that: described high-temperature-resistant adhesive is inorganic oxide copper high-temperature-resistant adhesive.
CN201510768771.XA 2015-11-12 2015-11-12 Preparation device for melt-blown non-woven fabric Pending CN105297288A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108265340A (en) * 2018-03-06 2018-07-10 杨晓波 Nano-fiber manufacturing apparatus
CN112609248A (en) * 2020-12-30 2021-04-06 苏州市吴中喷丝板有限公司 Electrostatic melt-blown spinning device and method thereof
WO2022007181A1 (en) * 2020-07-06 2022-01-13 浙江宸唯环保科技股份有限公司 Melt-blown nonwoven fabric electret adding device and adding method
CN114411336A (en) * 2021-12-30 2022-04-29 承德石油高等专科学校 Method and device for producing in-situ electret fiber membrane
US11447893B2 (en) 2017-11-22 2022-09-20 Extrusion Group, LLC Meltblown die tip assembly and method

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CN1348514A (en) * 1999-04-23 2002-05-08 赖特卜福叶特公司 Installation for making a nonwoven textile web and method for using such an installation
JP2009057655A (en) * 2007-08-31 2009-03-19 Japan Vilene Co Ltd Extra fine fiber nonwoven fabric, method for producing the same, and apparatus for producing the same
CN101709534A (en) * 2009-11-17 2010-05-19 天津工业大学 Device and method for manufacturing airflow melting electrostatic spinning nano-fiber non-woven fabric
CN102839431A (en) * 2012-09-28 2012-12-26 北京化工大学 Device and process for mass production of nanometer fiber by melt electro-spinning method
CN103205818A (en) * 2013-04-28 2013-07-17 厦门大学 Air-current-assisted hybrid electrostatic spinning device
CN205205412U (en) * 2015-11-12 2016-05-04 江阴金港无纺布有限公司 Polyurethane elastic nonwoven preparation facilities

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1348514A (en) * 1999-04-23 2002-05-08 赖特卜福叶特公司 Installation for making a nonwoven textile web and method for using such an installation
JP2001098453A (en) * 1999-09-28 2001-04-10 Daiwabo Co Ltd Electret nonwoven fabric and air filter
JP2009057655A (en) * 2007-08-31 2009-03-19 Japan Vilene Co Ltd Extra fine fiber nonwoven fabric, method for producing the same, and apparatus for producing the same
CN101709534A (en) * 2009-11-17 2010-05-19 天津工业大学 Device and method for manufacturing airflow melting electrostatic spinning nano-fiber non-woven fabric
CN102839431A (en) * 2012-09-28 2012-12-26 北京化工大学 Device and process for mass production of nanometer fiber by melt electro-spinning method
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CN205205412U (en) * 2015-11-12 2016-05-04 江阴金港无纺布有限公司 Polyurethane elastic nonwoven preparation facilities

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11447893B2 (en) 2017-11-22 2022-09-20 Extrusion Group, LLC Meltblown die tip assembly and method
CN108265340A (en) * 2018-03-06 2018-07-10 杨晓波 Nano-fiber manufacturing apparatus
WO2022007181A1 (en) * 2020-07-06 2022-01-13 浙江宸唯环保科技股份有限公司 Melt-blown nonwoven fabric electret adding device and adding method
CN112609248A (en) * 2020-12-30 2021-04-06 苏州市吴中喷丝板有限公司 Electrostatic melt-blown spinning device and method thereof
CN112609248B (en) * 2020-12-30 2022-01-14 苏州市吴中喷丝板有限公司 Electrostatic melt-blown spinning device and method thereof
CN114411336A (en) * 2021-12-30 2022-04-29 承德石油高等专科学校 Method and device for producing in-situ electret fiber membrane
CN114411336B (en) * 2021-12-30 2023-10-27 承德石油高等专科学校 Method and device for producing in-situ electret fiber membrane

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