CN109750397B - Device for preparing chemical fiber yarn and yarn making method by using device - Google Patents
Device for preparing chemical fiber yarn and yarn making method by using device Download PDFInfo
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- CN109750397B CN109750397B CN201910035997.7A CN201910035997A CN109750397B CN 109750397 B CN109750397 B CN 109750397B CN 201910035997 A CN201910035997 A CN 201910035997A CN 109750397 B CN109750397 B CN 109750397B
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- 239000000835 fiber Substances 0.000 title claims abstract description 112
- 239000000126 substance Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title abstract description 8
- 238000009987 spinning Methods 0.000 claims abstract description 55
- 238000009960 carding Methods 0.000 claims abstract description 53
- 239000000155 melt Substances 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 17
- 238000002074 melt spinning Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 8
- 238000010041 electrostatic spinning Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- -1 polypropylene Polymers 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920006306 polyurethane fiber Polymers 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Preliminary Treatment Of Fibers (AREA)
Abstract
The invention belongs to the technical field of spinning machinery, and particularly relates to a device for preparing chemical fiber yarns, which comprises a spinning device, a transferring carding device and a yarn forming device, wherein the spinning device is used for preparing melt into melt fibers, the transferring carding device is used for receiving and carding the melt fibers and transporting the melt fibers to the yarn forming device, and the yarn forming device is used for condensing and twisting the melt fibers into yarns. In addition, the invention also provides the yarn produced by using the device for preparing the chemical fiber yarn and the spinning method, and the technical scheme can greatly shorten the production process flow of the chemical fiber yarn, and the device for preparing the chemical fiber yarn by one-step molding meets the industrial and research requirements.
Description
Technical Field
The invention belongs to the technical field of spinning machinery, and particularly relates to a device for preparing chemical fiber yarns and a yarn making method by using the device.
Background
At present, the production and preparation process flow of chemical fiber yarns in the market is complicated, chemical fiber tows are prepared from high polymers through a plurality of procedures, and then the chemical fiber tows are spun into yarns, so that a rapid preparation device from chemical fiber raw materials to chemical fiber yarns with high efficiency and short flow is lacked.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a device for preparing the chemical fiber yarn by one-step molding, so that the production process flow of the chemical fiber yarn can be greatly shortened, and the device for preparing the chemical fiber yarn by one-step molding meets the industrial and research requirements.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the device for preparing the chemical fiber yarn comprises a spinning device, a transferring and carding device and a yarn forming device, wherein the spinning device is used for preparing melt into melt fibers, the transferring and carding device is used for receiving and carding the melt fibers and transporting the melt fibers to the yarn forming device, and the yarn forming device is used for condensing and twisting the melt fibers into yarns.
Based on the technical scheme, the invention can be further specifically selected or optimally selected as follows.
Specifically, the spinning device is a centrifugal spinning device, a melt spinning device, an electrostatic spinning device or the like. The centrifugal spinning device, the melt spinning device or the electrostatic spinning device are all suitable for preparing chemical raw materials into chemical fibers, and the devices are purchased from commercial products. And various melt-blown spinning and centrifugal spinning nozzles are selected according to the types of the required fiber materials, the required fiber fineness and the like, and the spinning state is automatically adjusted.
Specifically, the transportation carding unit includes roller, carding apron and output groove, the roller sets up the below of spinning device is used for accepting the melt fiber that spinning device made, the roller is equipped with the inner chamber, and its surface be equipped with the hole of inner chamber intercommunication, roller one end is connected with drive arrangement's output transmission, and drive arrangement drives down and rotate, the inner chamber of roller passes through the pipeline and the updraft ventilator intercommunication, carding apron is followed the roller direction of rotation sets up the roller the place ahead, and it is close to roller one side is equipped with the carding needle tooth, the carding needle tooth is close to the roller surface, output groove one end is close to the roller below, and accept from the roller stripping melt fiber, the other end extends to yarn device.
The device has the following specific effects: the fiber output port of the spinning device (such as a centrifugal spinning device, a melt spinning device or an electrostatic spinning device) faces downwards, so that the fiber falls onto a receiving and transferring device under the action of gravity, the receiving and transferring device is in a roller shape, and the surface of the roller is in a net curtain shape, so that the friction force is increased, and the receiving of the fiber is facilitated; meanwhile, holes are formed in the surface, and the side face of the receiving and transferring device is connected with an air suction pipeline, so that the surface of the roller is negative pressure and has an adsorption effect. The receiving and transferring device is in a high-speed rotation state. The carding device is arranged opposite to the roller, the hook-shaped grooves near the roller are orderly arranged, and the directions of the hooks are the same as the rotation direction of the roller. The roller inner cavity is communicated with the air draft device through a pipeline, specifically, the pipeline is rotationally connected with the roller inner cavity, the air draft device normally operates when the roller rotates at a high speed, and the air draft pipeline is used for exhausting air from the roller inner cavity rotating at a high speed.
Specifically, the transportation carding unit further comprises a stripping roller, one end of the output groove, which is close to the roller, is bent upwards, the bending part is tangential to the roller, the stripping roller is arranged above the bending part of the output groove and is close to the output groove and the roller, and the stripping roller and the roller are opposite in rotation direction. The bottom plate at one end of the output groove, which is close to the roller, is bent upwards so as to scoop up the single fiber layer from the adsorbed roller, the suction effect of the surface of the roller is prevented, the stripping roller with the friction strip on the surface rotates reversely with the receiving transfer roller, and the fiber is stripped by friction; the stripping roller is connected with the output groove.
Specifically, the transporting and carding device further comprises an airflow type drafting and gathering device, the airflow type drafting and gathering device comprises a box body and an airflow jet hole, one end of the box body is opened, the opening end of the box body is connected with the output groove, the other end of the box body is opened and connected with the yarn forming device, the airflow jet hole is arranged on the box walls on the left side and the right side of the box body, and the airflow jet hole is communicated with the air supply device and blows air into the box body. The airflow drafting and gathering device has several jet holes on two sides to jet airflow into the box to gather the fiber bundles to form strips. The inclination angle between the injection hole and the box body can be automatically adjusted, so that the aim of changing the drafting effect is fulfilled. The box body is larger in opening at one end connected with the output groove, and smaller in opening at one end connected with the yarn forming device. That is, the cross-sectional area of the end of the box body connected with the output groove is larger than the cross-sectional area of the end connected with the yarn forming device. Thereby acting to coagulate the melt fiber bundles. Specifically, the connection between the open end of the box body and the output groove can be indirectly or directly connected through a connecting hose, a connecting channel or riveting threaded connection.
Specifically, the yarn forming device comprises a rotary gripper and a fixed gripper, one ends of the rotary gripper and the fixed gripper are respectively provided with an annular part for allowing the melt fibers to pass through, the other ends of the rotary gripper and the fixed gripper extend to cross each other, the rotary gripper is sleeved on the fixed gripper and rotates around the fixed gripper, and the other ends of the box body extend to be close to the annular part of the rotary gripper. The rotating holding claw and the fixed holding claw transfer twist from bottom to top through high-speed rotation, so that fibers are fully transferred inside and outside, and the fiber bundles are wrapped and enfolded, thereby achieving the effect of forming yarns.
In particular, the yarn forming device further comprises a winding device comprising a winding drum for receiving and winding the yarn. The winding device receives the yarn made by the twisting device and winds the yarn on a winding drum. Specifically, the winding device is a yarn winding machine purchased from the market.
In addition, the invention also provides a yarn making method by using the device for preparing the chemical fiber yarn, which comprises the following steps:
1) Preparing melt into melt fibers by the spinning device;
2) Carding and transporting the melt fibers to the yarn forming device through the transferring carding device;
3) The melt fibers are cohesively twisted into yarns by the yarn forming device.
In addition, the invention also provides the yarn produced by using the device for preparing the chemical fiber yarn.
Compared with the prior art, the invention has the following advantages:
1. the process flow from preparation to spinning of the chemical fiber is reduced, the process flow of spinning the chemical fiber into yarn can be effectively shortened, and efficient short-flow chemical fiber spinning is realized.
2. The diversity of spinning device raw materials makes this device applicable to extensive chemical fiber yarn preparation.
3. The device has reasonable design, simple structure and convenient use, and can be widely applied to chemical fiber spinning.
Drawings
FIG. 1 is a schematic view of an apparatus for preparing a chemical fiber yarn according to the present invention;
FIG. 2 is an elevation view of an apparatus for preparing a chemical fiber yarn provided by the present invention;
FIG. 3 is an enlarged view of a portion of a transfer carding machine of the apparatus for preparing chemical fiber yarns provided by the present invention;
fig. 4 is a detailed view of the air-flow type drafting and condensing device in the apparatus for preparing chemical fiber yarns provided by the invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. a spinning device; 4. melt fibers; 21. a roller; 22. carding the cover plate; 23. an output slot; 24. Stripping rollers; 25. a case body; 26. an air flow jet hole; 31. rotating the grip; 32. a fixed grip; 33. And a winding device.
Detailed Description
For a better understanding of the present invention, the content of the present invention will be further elucidated with reference to the drawings and the specific examples, but the content of the present invention is not limited to the following examples.
The invention provides a device capable of preparing chemical fiber yarns by one-step molding, which comprises a spinning device 1, a transferring carding device and a yarn forming device, wherein the spinning device 1 is used for preparing melt into melt fibers 4, the transferring carding device is used for receiving and carding the melt fibers 4 and transporting the melt fibers 4 to the yarn forming device, and the yarn forming device is used for condensing and twisting the melt fibers 4 into yarns.
Specifically, the spinning device 1 is a centrifugal spinning device, a melt spinning device, an electrostatic spinning device, or the like. The centrifugal spinning device, the melt spinning device or the electrostatic spinning device are all suitable for preparing chemical raw materials into chemical fibers, and the devices are purchased from commercial products. And various melt-blown spinning and centrifugal spinning nozzles are selected according to the types of the required fiber materials, the required fiber fineness and the like, and the spinning state is automatically adjusted.
Specifically, the transferring and carding device comprises a roller 21, a carding cover plate 22 and an output groove 23, wherein the roller 21 is arranged below the spinning device 1 and is used for receiving melt fibers 4 produced by the spinning device 1, the roller 21 is provided with an inner cavity, the surface of the roller is provided with holes communicated with the inner cavity, one end of the roller 21 is in transmission connection with the output end of a driving device and is driven by the driving device to rotate, the inner cavity of the roller 21 is communicated with an air exhausting device through a pipeline so as to enable the surface of the roller 21 to form negative pressure, the carding cover plate 22 is arranged in front of the roller 21 along the rotating direction of the roller 21, carding needle teeth are arranged on one side of the carding cover plate, which is close to the surface of the roller 21, one end of the output groove 23 is close to the lower side of the roller 21 and receives the melt fibers 4 stripped from the roller 21, and the other end of the carding cover plate extends to the yarn forming device.
The fiber output port of the spinning device 1 (such as a centrifugal spinning device, a melt spinning device or an electrostatic spinning device) faces downwards, so that the fiber falls onto a receiving and transferring device under the action of gravity, the lower end of the spinning device 1 is provided with the receiving and transferring device, the receiving and transferring device is a roller 21 rotating at a high speed, the surface of the roller 21 is in a net shape and is provided with holes, an inner cavity is connected with an air suction pipeline to enable the surface of the receiving and transferring device to have adsorption force, the fiber falls onto the receiving and transferring roller 21 by gravity after being ejected, and the adsorption force and friction grabbing force on the surface of the roller 21 enable the fiber to be attached to the surface of the roller 21 to rotate; a carding cover plate 22 is arranged on the side of the receiving and transferring device, a curved groove is arranged on the surface of one side, close to the roller 21, of the carding cover plate 22, fibers attached to the surface of the roller 21 rotate to enter a narrow gap between the carding cover plate 22 and the roller 21, and the fibers are carded into single fibers through the curved groove of the carding cover plate 22 and the centrifugal force of the roller 21 rotating at a high speed. Specifically, the linear distance of the spinning device 1 from the upper surface of the roller 21 is about 50cm. The surface of the roller 21 is in a net curtain-shaped stripe, holes exist, and the surface is in negative pressure adsorption. The diameter of the roller 21 is about 20-30cm, and the rotating speed can reach 1000r/min.
Specifically, the transferring and carding device further comprises a stripping roller 24, one end of the output groove 23, which is close to the roller 21, is bent upwards, the bent part is tangential to the roller 21, the stripping roller 24 is arranged above the bent part of the output groove 23 and is close to the output groove 23 and the roller 21, and the rotation direction of the stripping roller 24 and the rotation direction of the roller 21 are opposite. Specifically, the diameter of the stripping roller 24 is about 100mm, the output groove 23 is a trapezoid gathering notch with a large upper opening and a small lower opening, the large opening is about 50-80cm in width, and the small opening is about 20-30cm in width, so that stripped fiber bundles can be gathered to form fiber strips through a gathering ring.
Specifically, the transporting and carding device further comprises an airflow type drafting and gathering device, the airflow type drafting and gathering device comprises a box body 25 and an airflow jet hole 26, one end of the box body 25 is opened, the opening end of the box body is connected with the output groove 23, the other end of the box body is opened and connected with the yarn forming device, the airflow jet hole 26 is arranged on the box walls on the left side and the right side of the box body 25, and the airflow jet hole 26 is communicated with an air supply device and blows air to the inside of the box body 25. The airflow drafting and gathering device has several jet holes 26 on two sides, and the jet holes 26 jet airflow into the box 25 to gather the fiber bundles to form strips. The inclination angle between the injection hole 26 and the box body 25 can be automatically adjusted, so that the aim of changing the drafting effect is fulfilled. The box 25 has a larger opening at the end connected to the output groove 23 and a smaller opening at the end connected to the yarn forming device. Thereby acting to coagulate the melt fiber bundles.
Specifically, the yarn forming device comprises a twisting device, the twisting device comprises a rotary gripper 31 and a fixed gripper 32, one ends of the rotary gripper 31 and the fixed gripper 32 are annular parts allowing the melt fibers 4 to pass through, the other ends extend to cross each other, the rotary gripper 31 is sleeved on the fixed gripper 32 and rotates around the fixed gripper 32, and the other ends of the box 25 extend to be close to the annular parts of the rotary gripper 31. The rotating grip 31 and the fixed grip 32 are rotated at a high speed to transfer twist from bottom to top, so that the fibers are fully transferred inside and outside, and the fiber bundles are wrapped and enfolded, thereby achieving the effect of forming yarns. The length of the rotary gripper 31 can be adjusted according to the required yarn properties, and the rotation speed can reach 15000r/min at the highest.
Specifically, the yarn forming device further comprises a winding device 33, and the winding device 33 receives the yarn made by the twisting device and winds the yarn on a winding drum. In particular, the winding device 33 is a commercially available yarn winding machine.
Example 1
A. The polyurethane plastic granules of Germany Bayer/192X 92 degrees are put into a spinning device, and the spinning device is a centrifugal spinning device. The discharge amount is 5g/min; the maximum temperature of the centrifugal cavity is 100 ℃. The polyurethane melt is melted by the centrifugal inner cavity and is conveyed to the outer cavity spinneret orifice, and the rotating speed of the centrifugal disc is 1000r/min. The melt is drawn by centrifugal force rotating at high speed to form polyurethane superfine filament when being sprayed out through a spinneret orifice, and is deposited on a receiving and transferring device along with cooling airflow to form a centrifugal fiber net, and the centrifugal fiber net mainly forms fiber bundles by self-adhesion.
B. The polyurethane fiber bundles are grabbed by the high-speed rotation of the roller and the grabbing and adsorbing action of the surface, and are combed by the carding cover plate. The rotating speed of the roller is 1000r/min. The carding cover plate is used for carding the polyurethane fiber bundles into polyurethane single fibers.
C. When the loose fibers leave the carding cover plate, the loose fibers pass through a stripping roller of a stripping device, are sent into an airflow type drafting and gathering device by an output groove to form fiber strips, the fiber strips are wrapped and enfolded by the torsional force of a twisting device to form yarns, and finally the yarns are wound into bobbin yarns. The number of the spinning yarn is 28tex-500tex, and the spinning speed can reach 300m/min.
Example 2:
A. feeding domestic S904 high melt flow rate polypropylene into a spinning device, wherein the spinning device is a melt-blowing device, and the discharge amount is 50g/min; the maximum temperature of the nozzle was 310 ℃. The Polymer Polypropylene (PP) slice is heated and melted in a screw extruder, the melt is conveyed into a melt spinning hole of a spinneret plate, the polymer melt leaving the spinning hole forms polypropylene superfine filaments or superfine short fibers under the clamping, drafting and attenuating action of high-speed high-temperature air flow, and is deposited on a receiving transfer roller along with cooling air flow to form a melt-blown fiber web, and the melt-blown fiber web mainly forms fiber bundles by self-adhesion.
B. The polypropylene fiber bundles are grabbed and conveyed to the carding cover plate through the high-speed rotation of the roller and the grabbing and adsorbing action of the surface. The rotating speed of the roller is 1000r/min. The carding cover plate is used for carding the polypropylene fiber bundles into polypropylene single fibers.
C. When the loose fibers leave the carding device, the loose fibers pass through a stripping roller of a stripping device, are sent into an airflow type drafting and gathering device by an output pipeline to form fiber strips, the fiber strips are wrapped and enfolded by the torsional force of a twisting device to form yarns, and finally the yarns are wound into bobbin yarns. The number of the spinning yarn is 28tex-500tex, and the spinning speed can reach 300m/min.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. An apparatus for preparing a chemical fiber yarn, characterized by comprising a spinning device (1), a transferring carding device and a yarn forming device, wherein the spinning device (1) is used for preparing a melt into melt fibers (4), the transferring carding device is used for receiving and carding the melt fibers (4) and transporting the melt fibers to the yarn forming device, and the yarn forming device is used for condensing and twisting the melt fibers (4) into yarn;
the transfer carding device comprises a roller (21), a carding cover plate (22) and an output groove (23), wherein the roller (21) is arranged below the spinning device (1) and is used for bearing melt fibers (4) made of the spinning device (1), the roller (21) is provided with an inner cavity, the surface of the roller is provided with holes communicated with the inner cavity, one end of the roller (21) is in transmission connection with the output end of a driving device and is driven by the driving device to rotate, the inner cavity of the roller (21) is communicated with an air draft device through a pipeline, the carding cover plate (22) is arranged in front of the roller (21) along the rotating direction of the roller (21), carding needle teeth are arranged on one side of the carding cover plate, close to the surface of the roller (21), one end of the output groove (23) is close to the lower part of the roller (21) and bears the melt fibers (4) stripped from the roller (21), and the other end of the output groove extends to the yarn forming device;
the transfer carding device further comprises an airflow type drafting gathering device, the airflow type drafting gathering device comprises a box body (25) and airflow jet holes (26), one end of the box body (25) is opened, the opening end of the box body is connected with the output groove (23), the other end of the box body is opened and connected with the yarn forming device, the airflow jet holes (26) are arranged on the left box wall and the right box wall of the box body (25), and the airflow jet holes (26) are communicated with the air supply device;
the transfer carding device further comprises a stripping roller (24), wherein one end of the output groove (23) close to the roller (21) is bent upwards, the bending part is tangential to the roller (21), the stripping roller (24) is arranged above the bending part of the output groove (23) and close to the output groove (23) and the roller (21), and the rotation direction of the stripping roller (24) is opposite to that of the roller (21).
2. An apparatus for making chemical fiber yarn according to claim 1 wherein: the spinning device (1) is a centrifugal spinning device, a melt spinning device or an electrostatic spinning device.
3. An apparatus for making chemical fiber yarn according to claim 1 wherein: one end of the box body (25) connected with the output groove (23) is larger in opening cross section than the other end.
4. A device for producing chemical fiber yarn according to claim 3, wherein: the yarn forming device comprises a twisting device, the twisting device comprises a rotary gripper (31) and a fixed gripper (32), one ends of the rotary gripper (31) and the fixed gripper (32) are respectively provided with an annular part for allowing the melt fibers (4) to pass through, the other ends of the rotary gripper (31) are mutually intersected, the rotary gripper (31) is sleeved on the fixed gripper (32) and rotates around the fixed gripper (32), and the other ends of the box body (25) are extended to be close to the annular part of the rotary gripper (31).
5. An apparatus for producing chemical fiber yarn according to claim 4 wherein: the yarn forming device further comprises a winding device (33), the winding device (33) comprising a winding drum for receiving and winding the yarn.
6. A yarn produced using the apparatus for producing a chemical fiber yarn according to any one of claims 1 to 5.
7. A method of making yarn using the apparatus for making chemical fiber yarn according to any one of claims 1 to 5, comprising the steps of:
1) Forming the melt into melt fibers (4) by means of the spinning device (1);
2) Carding and transporting the melt fibers (4) to the yarn forming device by the transferring carding device;
3) The melt fibers (4) are cohesively twisted into yarns by the yarn forming device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035997.7A CN109750397B (en) | 2019-01-15 | 2019-01-15 | Device for preparing chemical fiber yarn and yarn making method by using device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035997.7A CN109750397B (en) | 2019-01-15 | 2019-01-15 | Device for preparing chemical fiber yarn and yarn making method by using device |
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| CN109750397B true CN109750397B (en) | 2024-04-02 |
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| CN110747527A (en) * | 2019-12-03 | 2020-02-04 | 福建新创锦纶实业有限公司 | Chemical fiber spinning box and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8901416D0 (en) * | 1989-01-23 | 1989-03-15 | Lawrence Carl A | Preparation of fibres for spinning |
| EP1464742A1 (en) * | 2003-04-03 | 2004-10-06 | Saurer Czech a.s | Multi-component rotor-spun yarn |
| CN101158068A (en) * | 2007-10-23 | 2008-04-09 | 江南大学 | Rotary Spinning Machine |
| KR20100002631A (en) * | 2008-06-30 | 2010-01-07 | 코오롱글로텍주식회사 | High strength polypropylene staple fibers for high-speed carding and methods of the same, nonwoven made of them |
| CN105568446A (en) * | 2016-03-04 | 2016-05-11 | 深圳市中盛丽达贸易有限公司 | Novel micro-nano fiber yarn spinning device and technology |
| CN209741345U (en) * | 2019-01-15 | 2019-12-06 | 武汉纺织大学 | A device for preparing chemical fiber yarn |
-
2019
- 2019-01-15 CN CN201910035997.7A patent/CN109750397B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8901416D0 (en) * | 1989-01-23 | 1989-03-15 | Lawrence Carl A | Preparation of fibres for spinning |
| EP1464742A1 (en) * | 2003-04-03 | 2004-10-06 | Saurer Czech a.s | Multi-component rotor-spun yarn |
| CN101158068A (en) * | 2007-10-23 | 2008-04-09 | 江南大学 | Rotary Spinning Machine |
| KR20100002631A (en) * | 2008-06-30 | 2010-01-07 | 코오롱글로텍주식회사 | High strength polypropylene staple fibers for high-speed carding and methods of the same, nonwoven made of them |
| CN105568446A (en) * | 2016-03-04 | 2016-05-11 | 深圳市中盛丽达贸易有限公司 | Novel micro-nano fiber yarn spinning device and technology |
| CN209741345U (en) * | 2019-01-15 | 2019-12-06 | 武汉纺织大学 | A device for preparing chemical fiber yarn |
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Inventor after: Liu Keshuai Inventor after: Xu Duo Inventor after: Xu Weilin Inventor after: Guo Weiqi Inventor before: Xu Weilin Inventor before: Liu Keshuai Inventor before: Xu Duo Inventor before: Guo Weiqi |
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