CN112878032A - Non-woven fabric on-line electret equipment - Google Patents

Non-woven fabric on-line electret equipment Download PDF

Info

Publication number
CN112878032A
CN112878032A CN202110393027.1A CN202110393027A CN112878032A CN 112878032 A CN112878032 A CN 112878032A CN 202110393027 A CN202110393027 A CN 202110393027A CN 112878032 A CN112878032 A CN 112878032A
Authority
CN
China
Prior art keywords
electret
roller
winding
cloth
woven fabric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110393027.1A
Other languages
Chinese (zh)
Inventor
郁杨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Jinmeida New Materials Co ltd
Original Assignee
Jiangsu Jinmeida New Materials Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Jinmeida New Materials Co ltd filed Critical Jiangsu Jinmeida New Materials Co ltd
Priority to CN202110393027.1A priority Critical patent/CN112878032A/en
Publication of CN112878032A publication Critical patent/CN112878032A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • D06M10/025Corona discharge or low temperature plasma

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention relates to non-woven fabric on-line electret equipment which is suitable for non-woven fabric on-line electret of spun-bonded cloth, needle-punched cloth, melt-blown filter cloth and the like which are made of high molecular polymers. The electrostatic grounding cloth guide device comprises an electret rack, a plurality of electrostatic grounding cloth guide rollers, a cloth guide roller I, an electrostatic grounding cloth guide roller installation rack, an electret installation rack, a plurality of electret wires, a winding support, a cloth supporting roller, a synchronous winding roller transmission motor, a winding roller, a swing rack and an air cylinder; the static grounding cloth guide roller mounting frame is provided with a plurality of static grounding cloth guide rollers, and the static grounding wire mounting frame is provided with a plurality of static wires which are connected with a matched high-voltage static generator; the winding support is provided with a cloth supporting roller, a synchronous winding roller transmission motor, a swing frame, an air cylinder and a winding roller.

Description

Non-woven fabric on-line electret equipment
Technical Field
The invention relates to non-woven fabric on-line electret equipment which is suitable for non-woven fabric on-line electret of spun-bonded cloth, needle-punched cloth, melt-blown filter cloth and the like which are made of high molecular polymers.
Background
At present, a non-woven fabric electret generally adopts a non-online device, after a non-woven fabric is wound into a coil, the non-woven fabric is transported to the next procedure for electret treatment, and the process of rewinding the non-woven fabric into the coil and then rewinding the electret requires a large amount of manpower and material resources and occupies a large amount of equipment and production fields. Or the online electret device is arranged on the melt-blown roller receiver, an insulated air inlet network board, a ventilation channel and the like are required to be arranged, and the melt-blown spraying device needs to be frequently disassembled and replaced (generally 3-10 days are different), so that the online electret device needs to be disassembled and then reinstalled when the spraying device is replaced every time. Not only the structure is complicated, but also the maintenance workload is large.
Disclosure of Invention
Aiming at the defects, the invention provides the non-woven fabric on-line electret equipment which is arranged between a non-woven fabric discharging device and a non-woven fabric winding device and can be very conveniently matched with a non-woven fabric production line on the market. After the non-woven fabric is discharged, the non-woven fabric is rolled up through an on-line electret, and the device has the advantages of simple structure, reliable performance and no need of maintenance basically, and can save a large amount of manpower and material resources.
The non-woven fabric on-line electret equipment is realized by adopting the following technical scheme:
an online electret device for non-woven fabrics comprises an electret frame, a plurality of electrostatic grounding cloth guide rollers, a cloth guide roller I, an electrostatic grounding cloth guide roller installation frame, an electret installation frame, a plurality of electret wires, a winding support, a cloth supporting roller, a synchronous winding roller transmission motor, a winding roller, a swing frame and an air cylinder.
The electrostatic discharge electrostatic fabric winding machine is characterized in that a first fabric guide roller and a second fabric guide roller are respectively arranged at two ends of the electret frame, an electrostatic grounding fabric guide roller mounting frame and an electret mounting frame are arranged in the electret frame, a plurality of electrostatic grounding fabric guide rollers are arranged on the electrostatic grounding fabric guide roller mounting frame, a plurality of electret lines are mounted on the electret mounting frame and are connected with a matched high-voltage electrostatic generator and used for releasing high-voltage electricity, non-woven fabric conveyed on the electrostatic grounding fabric guide rollers is released with high-voltage static electricity, the electrostatic grounding rollers receive the static electricity, and normal-temperature discharge electrostatic discharge electret treatment is carried out on the non-woven fabric.
The electret plate is connected with a matched high-voltage electrostatic generator through the electret wire and used for releasing high voltage electricity.
The perpendicular distance between the electret wire and the electrostatic grounding cloth guide roller is about 20-30cm, and the voltage of the electret wire is set to be 60-120 kV.
The winding support is provided with a cloth supporting roller, a synchronous winding roller transmission motor, a swing frame, an air cylinder and a winding roller. And a synchronous winding roller transmission motor is arranged on one side of the winding support and is connected with the synchronous winding roller to drive the synchronous winding roller to rotate, and the speed of the synchronous winding roller transmission motor is controlled by a frequency converter, so that the cloth winding speed can be controlled to be consistent with the cloth discharging speed of the front-end non-woven machine. The winding roller is installed on the swing span, and one end links to each other with the winding support on the swing span, and the cylinder is installed to one end, and the swing span passes through the cylinder and realizes the regulation of angle, and the regulation of angle can change whether the winding roller contacts with synchronous winding roller. When the swing frame is adjusted to enable the gravity center position of the winding roller to be higher than that of the synchronous winding roller, the winding roller and the synchronous winding roller are in contact due to the action of gravity, the synchronous winding roller rotates clockwise to drive the winding roller to rotate anticlockwise passively, and the high-voltage electrostatic electret treated non-woven fabric is wound. When the lower roll is needed, the swing frame is adjusted to enable the gravity center position of the winding roll to be lower than that of the synchronous winding roll, and the winding roll and the synchronous winding roll are separated and lower roll.
The synchronous winding roller transmission motor and the frequency converter on the winding support are of the same type as those of the transmission motor and the frequency converter at the receiving end of the front-end non-woven fabric machine, the frequency converter keeps the same frequency during working, and the linear speeds of the winding end and the receiving end of the front-end non-woven fabric machine are always kept consistent.
The working principle of the non-woven fabric on-line electret equipment is as follows:
when the non-woven fabric on-line electret equipment works, the non-woven fabric sequentially passes through a first fabric guide roller at the front end of the electret equipment, a second fabric guide roller at the rear end of the electret equipment, a cloth supporting roller on a rolling support and a synchronous rolling roller, then the non-woven fabric is wound on the rolling roller, and then an air cylinder on the rolling support is adjusted to enable the rolling roller to be in contact with the synchronous rolling roller. The frequency converter on the winding support and the frequency converter at the receiving end of the front-end non-woven fabric machine are kept at the same frequency, so that the non-woven fabric is produced from the front-end non-woven fabric machine and then passes through the fabric guide roller at the front end of the electret equipment arranged between the receiving end and the winding end, and then passes through the electrostatic grounding fabric guide roller inside the electret equipment, a electret wire arranged at a certain distance from the electrostatic grounding fabric guide roller generates high-voltage static electricity through a matched high-voltage static electricity generator, a plurality of electret plates are arranged at the bottom of the electret mounting frame, high-voltage static electricity discharge needles are arranged on the electret plates, and the electret plates are connected with the matched high-voltage static electricity generator through the electret wire and used for releasing high-voltage electricity to electret the non-woven. The electret non-woven fabric enters a synchronous winding roller after passing through a fabric supporting roller on a winding support, and the synchronous winding roller drives the winding roller to wind, so that the purpose of high-voltage electrostatic electret while non-woven fabric production is achieved.
The non-woven fabric on-line electret equipment is reasonable in design and compact in structure, and is provided with an electret frame, an electrostatic grounding cloth guide roller, a cloth guide roller, an electrostatic grounding cloth guide roller mounting frame, an electret mounting frame, a plurality of electret wires, a winding support, a cloth supporting roller, a synchronous winding roller transmission motor, a winding roller, a swing frame and a cylinder, and is arranged between a non-woven fabric discharging device and a winding device, so that the non-woven fabric on-line electret equipment can be very conveniently matched with a non-woven fabric production line on the market. After the non-woven fabric is discharged, the non-woven fabric is rolled up through an on-line electret, and the device has the advantages of simple structure, reliable performance and no need of maintenance basically, and can save a large amount of manpower and material resources.
The non-woven fabric electrostatic electret equipment can perform normal-temperature bipolar corona electret on non-woven fabric on line, the non-woven fabric can become a permanently charged fiber electret, and a filtering performance test result shows that the electrostatic action greatly improves the filtering efficiency of a modified material on solid particles in a gas phase. The electret filter material non-woven fabric not only has excellent filtering performance, but also has the functions of inhibiting and killing common bacteria.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an online electret device for non-woven fabrics;
FIG. 2 is a schematic view of a high voltage electrostatic electret line of a nonwoven fabric in-line electret apparatus;
FIG. 3 is a top view of a nonwoven fabric in-line electret apparatus.
In the figure: 1. the device comprises a cloth guide roller I, a cloth guide frame 2, an electret frame 3, an electrostatic grounding cloth guide roller mounting frame 4, an electret mounting frame 5, an electret wire 6, an electrostatic grounding cloth guide roller 7, a cloth guide roller II, a cloth supporting roller 8, a cloth supporting roller 9, a winding support 10, a synchronous winding roller 11, a synchronous winding roller transmission motor 12, a winding roller 13, a swinging frame 14, a cylinder 15, an electret plate 16 and non-woven cloth; 15-1, high voltage electrostatic discharge needle.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings 1-3, the non-woven fabric on-line electret equipment comprises an electret frame 2, an electrostatic grounding cloth guide roller 6, a cloth guide roller I1, a cloth guide roller II 7, an electrostatic grounding cloth guide roller mounting frame 3, an electret mounting frame 4, a plurality of electret wires 5, a winding support 9, a cloth supporting roller 8, a synchronous winding roller 10, a synchronous winding roller transmission motor 11, a winding roller 12, a swing frame 13 and a cylinder 14.
The electrostatic grounding guide cloth roller comprises an electret frame 2 and is characterized in that a cloth guide roller I1 and a cloth guide roller II 7 are respectively arranged at two ends of the electret frame 2, an electrostatic grounding cloth guide roller mounting frame 3 and an electret mounting frame 4 are arranged inside the electret frame, a plurality of electrostatic grounding cloth guide rollers 6 are arranged on the electrostatic grounding cloth guide roller mounting frame 3, a plurality of electret wires 5 are arranged on the electret mounting frame 4, the electret wires 5 are connected with a matched high-voltage electrostatic generator and used for releasing high-voltage electricity, non-woven cloth 16 conveyed on the electrostatic grounding cloth guide rollers 6 is released with high-voltage static electricity, the electrostatic grounding rollers 6 receive static electricity, and the non-woven cloth 16 is subjected to normal-temperature discharge electrostatic corona electret treatment.
The bottom of the electret mounting rack 4 is provided with a plurality of electret plates 15, the electret plates 15 are provided with high-voltage electrostatic discharge needles 15-1, and the electret plates 15 are connected with a matched high-voltage electrostatic generator through electret wires 5 and used for releasing high voltage electricity.
The perpendicular distance between the electret wire 5 and the electrostatically grounded cloth guide roll 6 is about 20-30cm, and the voltage of the electret wire is set at 60-120 kV.
The winding support 9 is provided with a cloth supporting roller 8, a synchronous winding roller 10, a synchronous winding roller transmission motor 11, a swing frame 13, an air cylinder 14 and a winding roller 12. A synchronous winding roller transmission motor 11 is arranged on one side of the winding support 9, the synchronous winding roller transmission motor 11 is connected with a synchronous winding roller 10, the synchronous winding roller 10 is driven to rotate, the speed of the synchronous winding roller transmission motor 11 is controlled by a frequency converter, and the cloth winding speed can be controlled to be consistent with the cloth discharging speed of a non-weaving machine at the front end. The winding roller 12 is installed on a swing frame 13, one end of the swing frame 13 is connected with the winding support 9, an air cylinder 14 is installed at one end of the swing frame 13, the swing frame 13 achieves angle adjustment through the air cylinder 14, and the angle adjustment can change whether the winding roller 12 is in contact with the synchronous winding roller 10. When the swing frame 13 is adjusted to enable the gravity center position of the winding roller 12 to be higher than that of the synchronous winding roller 10, the winding roller 12 is contacted with the synchronous winding roller 10 due to the action of gravity, the synchronous winding roller 10 rotates clockwise to drive the winding roller 12 to rotate anticlockwise passively, and the high-voltage electrostatic electret treated non-woven fabric is wound. When the lower roll is needed, the swing frame 13 is adjusted to enable the gravity center position of the winding roll 12 to be lower than that of the synchronous winding roll 10, and the winding roll and the synchronous winding roll are separated and lower roll.
And a synchronous winding roller transmission motor 11 is arranged on one side of the winding support 9, the synchronous winding roller transmission motor 11 is connected with a synchronous winding roller 10, and the synchronous winding roller 10 is driven to rotate to drive a winding roller 12 to rotate passively, so that the high-voltage electrostatic electret treated non-woven fabric is wound.
The high-voltage electrostatic generator generates 60-120KV high-voltage electricity, the non-woven fabric 16 in transmission is provided with 60-120KV high-voltage electricity through a plurality of electret wires, the static grounding roller cloth guide roller correspondingly installed receives static electricity, normal-temperature bipolar corona electret treatment is carried out on the non-woven fabric 16, so that the non-woven fabric 16 becomes a permanent charged fiber electret, and then the permanent charged fiber electret is transmitted to a synchronous winding device for winding, or is cut before winding, and then is wound into a coiled material after cutting.
The synchronous winding roller transmission motor 11 and the frequency converter on the winding support are of the same type as those of the transmission motor and the frequency converter at the receiving end of the front-end non-woven fabric machine, the frequency converter keeps the same frequency during working, and the linear speeds of the winding end and the receiving end of the front-end non-woven fabric machine are always kept consistent.
The angle adjustment of the swing frame 13 can change whether the winding roller 12 is contacted with the synchronous winding roller 10. When the winding roller and the winding roller are contacted, the winding roller rotates clockwise to drive the winding roller to rotate anticlockwise passively, and the winding function is achieved. When the cloth on the winding roller 12 reaches the required value, the angle of the swing frame 13 is adjusted to be small, the winding roller 12 is separated from the synchronous winding roller 10, the winding roller is taken down, and a new winding roller is replaced.
When the on-line electret equipment for the non-woven fabric works, the non-woven fabric 16 sequentially passes through a first fabric guide roller 1 at the front end of the electret equipment, a static grounding fabric guide roller 6 inside the electret equipment, a second fabric guide roller 7 at the rear end of the electret equipment, a cloth supporting roller 8 on a rolling support 9 and a synchronous rolling roller 10, then the non-woven fabric 16 is wound on the rolling roller 12, and then an air cylinder 14 on the rolling support 9 is adjusted to enable the rolling roller 12 to be in contact with the synchronous rolling roller 12. The frequency converter on the rolling support 9 and the frequency converter at the receiving end of the front-end non-woven fabric machine keep the same frequency, so that the non-woven fabric 16 passes through the cloth guide roller 1 at the front end of the electret equipment arranged between the receiving end and the rolling end after being produced from the front-end non-woven fabric machine, then passes through the electrostatic grounding cloth guide roller 6 in the electret equipment, the electret wire 5 arranged at a certain distance from the electrostatic grounding cloth guide roller 6 generates high-voltage static electricity through a matched high-voltage static electricity generator, the bottom of the electret mounting rack 4 is provided with a plurality of electret plates 15, the electret plates 15 are provided with high-voltage static electricity discharge needles 15-1, and the electret plates 15 are connected with the matched high-voltage static electricity generator through the electret wires 5 and used for releasing high-voltage electricity to electret the non-woven fabric 16. The electret non-woven fabric 16 passes through a cloth supporting roller 8 on a winding support 9 and then enters a synchronous winding roller 10, and the synchronous winding roller 10 drives a winding roller 12 to wind, so that the purpose of producing and high-voltage electrostatic electret non-woven fabric 16 is achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (6)

1. An online electret device for non-woven fabrics is characterized by comprising an electret frame, a plurality of electrostatic grounding cloth guide rollers, a first cloth guide roller, an electrostatic grounding cloth guide roller mounting frame, an electret mounting frame, a plurality of electret wires, a winding support, a cloth supporting roller, a synchronous winding roller transmission motor, a winding roller, a swing frame and an air cylinder;
the electrostatic grounding guide roller mounting frame is provided with a plurality of electrostatic grounding guide rollers, the electret mounting frame is provided with a plurality of electret wires, the electret wires are connected with a matched high-voltage electrostatic generator and used for releasing high-voltage electricity, non-woven cloth conveyed on the electrostatic grounding guide rollers is released with high-voltage static electricity, the electrostatic grounding rollers receive the static electricity, and normal-temperature discharge corona electret treatment is carried out on the non-woven cloth;
a cloth supporting roller, a synchronous winding roller transmission motor, a swing frame, an air cylinder and a winding roller are arranged on the winding support; a synchronous winding roller transmission motor is arranged on one side of the winding support and is connected with the synchronous winding roller to transmit the synchronous winding roller to rotate, the winding roller is arranged on a swing frame, one end of the swing frame is connected with the winding support, and an air cylinder is arranged at one end of the swing frame.
2. The non-woven fabric on-line electret device according to claim 1, wherein a plurality of electret plates are arranged at the bottom of the electret mounting frame, high-voltage electrostatic discharge needles are arranged on the electret plates, and the electret plates are connected with a matched high-voltage electrostatic generator through the electret plates and used for releasing high-voltage electricity.
3. The nonwoven online electret apparatus of claim 1 wherein the perpendicular distance between the electret wire and the electrostatically grounded cloth guide roll is about 20-30cm, and the voltage of the electret wire is set at 60-120 kV.
4. The on-line electret device for non-woven fabric according to claim 1, wherein the speed of the synchronous take-up roller driving motor is controlled by a frequency converter, so that the cloth rolling speed can be controlled to be consistent with the cloth discharging speed of the front non-woven fabric.
5. The on-line electret equipment for non-woven fabric according to claim 1, wherein the oscillating frame realizes angle adjustment through the air cylinder, the angle adjustment can change whether the wind-up roll is contacted with the synchronous winding roll, when the oscillating frame is adjusted to enable the gravity center position of the wind-up roll to be higher than that of the synchronous winding roll, the wind-up roll is contacted with the synchronous winding roll due to the action of gravity, the synchronous winding roll rotates clockwise to drive the wind-up roll to rotate passively and anticlockwise, and the winding of the non-woven fabric subjected to high-voltage electrostatic electret treatment is realized; when the lower roll is needed, the swing frame is adjusted to enable the gravity center position of the winding roll to be lower than that of the synchronous winding roll, and the winding roll and the synchronous winding roll are separated and lower roll.
6. The non-woven fabric on-line electret device according to claim 1, wherein the synchronous take-up roller drive motor and the frequency converter on the take-up support are the same type as the drive motor and the frequency converter on the receiving end of the front non-woven fabric machine, the frequency converter keeps the same frequency during operation, and the linear speeds of the take-up end and the receiving end of the front non-woven fabric machine are always consistent.
CN202110393027.1A 2021-04-13 2021-04-13 Non-woven fabric on-line electret equipment Pending CN112878032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110393027.1A CN112878032A (en) 2021-04-13 2021-04-13 Non-woven fabric on-line electret equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110393027.1A CN112878032A (en) 2021-04-13 2021-04-13 Non-woven fabric on-line electret equipment

Publications (1)

Publication Number Publication Date
CN112878032A true CN112878032A (en) 2021-06-01

Family

ID=76040126

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110393027.1A Pending CN112878032A (en) 2021-04-13 2021-04-13 Non-woven fabric on-line electret equipment

Country Status (1)

Country Link
CN (1) CN112878032A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115821570A (en) * 2022-12-06 2023-03-21 常州阿尔丰机械有限公司 Non-woven fabric production line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115821570A (en) * 2022-12-06 2023-03-21 常州阿尔丰机械有限公司 Non-woven fabric production line

Similar Documents

Publication Publication Date Title
US4233014A (en) Apparatus for preparing a nonwoven web
US7967588B2 (en) Fine fiber electro-spinning equipment, filter media systems and methods
EP0010756B1 (en) Process for preparing a nonwoven web and apparatus for carrying out said process
JP2006112023A (en) Method for producing fiber assembly and apparatus for producing the fiber assembly
CN210314594U (en) Preparation device of electrostatic spinning composite air filter material
CN112878032A (en) Non-woven fabric on-line electret equipment
WO2009067370A1 (en) Apparatus and method for reducing solvent loss for electro-spinning of fine fibers
CN111620156A (en) Receiving, slitting and coiling all-in-one machine for melt-blown non-woven fabric
CN112593319A (en) Graphene and chinlon blending drawing method
CN211569639U (en) Multi-station splitting machine for producing coated paper
CN214736946U (en) Non-woven fabric on-line electret equipment
CN102108603A (en) Electrostatic spinning device for efficiently preparing nano-fiber fabrics
CN213708942U (en) Water electret equipment for processing melt-blown non-woven fabric
CN104514092A (en) Electrostatic textile nanofiber membrane preparation device and method
CN112301436B (en) Large modular combined electrostatic spinning equipment
CN214088903U (en) Acupuncture device is used in production of non-woven fabrics paint pad
CN204385420U (en) A kind of electrostatic weaving nano fibrous membrane preparation facilities
CN112831915A (en) Melt-blown water distribution electret system
CN112281469A (en) Electrostatic electret device for enhancing uniform distribution of charges in melt-blown fabric
CN1789534B (en) Method and device for the transport of nonwovens
AU2014206173B2 (en) Fine fiber electro-spinning equipment, filter media systems and methods
CN217922447U (en) Double-sided electrostatic spinning equipment
CN219526899U (en) Static electricity removing carding device for electrostatic cotton production
CN221029264U (en) Double-layer electrostatic electret equipment with heating and spreading functions
CN219740692U (en) Dust removing and static removing device for geotechnical cloth

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination