CN100422398C - Novel spandex spinning process - Google Patents
Novel spandex spinning process Download PDFInfo
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- CN100422398C CN100422398C CNB200610040321XA CN200610040321A CN100422398C CN 100422398 C CN100422398 C CN 100422398C CN B200610040321X A CNB200610040321X A CN B200610040321XA CN 200610040321 A CN200610040321 A CN 200610040321A CN 100422398 C CN100422398 C CN 100422398C
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- spinning
- path
- air outlet
- companion
- static mixer
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- 238000009987 spinning Methods 0.000 title claims abstract description 36
- 229920002334 Spandex Polymers 0.000 title claims description 17
- 239000004759 spandex Substances 0.000 title claims description 17
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000005516 engineering process Methods 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 208000012886 Vertigo Diseases 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract 1
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 239000011550 stock solution Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000578 dry spinning Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
A process for spinning polyurethane fibre includes such steps as transferring the raw liquid after polymerization reaction to storage tank, storing, ageing, filtering, defoaming, loading in spinning slot, pressurizing by nitrogen gas, pressurizing by gear pump, static mixer, metering pump, filtering, distributing to spinneret plate, evaporating to remove solvent, solidifying, false twisting, oiling and winding. In order to adapt to 32-head spinning, the new static mixer reduces adverse effects on the spinning process caused by gradient differences of temperature, residence time, viscosity and the like of the polymer in the radial direction in the pipeline, and plays a role in mixing and pugging stock solution. The actual outlet temperature of the circulating medium in the storage tank, the spinning groove, the static mixer and the heat tracing device of the pipeline connected with the static mixer is controlled, the uniformity and the stability of the spinning air quantity and the air temperature after being increased are solved, the solvent volatilization speed is improved, and the strand silk forming is not influenced.
Description
Technical field
The present invention relates to a kind of dry-spinning process, particularly a kind of new technology of spandex fiber.
Background technology
Spandex fibre intensity height, light specific gravity, have good high elasticity and elastic recovery rate, its clothing item softness and high resilience, not only next to the shin but also do not have a restraint feeling when wearing, feel very comfortable, become the indispensable special textile fabric of the high-grade elasticity textile product of development in recent years, have using value and development prospect quite widely.Spinning process is the place of spandex fibre moulding, evaporates by solvent in spinning process polymerization stoste, finally forms spandex fibre, and the process conditions of forming process have determined performance, the quality of spandex fibre.All be to adopt 16 or 24 spinning at present, its weak point is: there is vortex phenomenon in the path, and the spinning head number is few, and spinning speed is slow, low, the specific yield cost height of unit production efficiency.
Summary of the invention
The technical problem to be solved in the present invention is at the deficiencies in the prior art. a kind of 32 new technology of spandex fiber that spin that are applicable to have been proposed.It can improve the speed of spinning greatly, increases the production capacity of spandex
The technical problem to be solved in the present invention is achieved through the following technical solutions, a kind of new technology of spandex fiber, be characterized in: the stoste through polymerisation is transferred to storage tank, store after the slaking more after filtration, deaeration, enter spinning tank, by the nitrogen force feed, the gear pump supercharging enters static mixer, and by measuring pump spue stoste in filament spinning component after filtration, be dispensed to the spinnerets ejection, in spinning shaft, behind the evaporative removal solvent wherein, be frozen into the spandex tow, again through false twisting, oil, package becomes the silk volume of constant weight on up-coiler, and described spinnerets is provided with 32
Be increased to 15～20kg/cm2 by the pressure of gear pump supercharging before with measuring pump, wherein on storage tank, spinning tank, static mixer and the pipeline that joins thereof, all be provided with companion's thermic devices, companion's thermic devices adopts circulating heat exchange medium, and control heat exchange outlet medium temperature is 35～50 ℃
Described path is made of last path, middle path, following path, upward, all being provided with the employing conduction oil outside the middle path is companion's thermic devices of medium, last path is provided with hot-wind inlet and goes up air outlet, the temperature of the hot blast at hot-wind inlet place is 230～250 ℃, air outlet and following air outlet during following path is provided with, last air outlet, middle air outlet and following air outlet three's air output ratio is 65%:25%:10%.
The technical problem to be solved in the present invention can also come by the following technical programs further to realize that the described hot temperature of companion that goes up the path is 210～230 ℃, and 180～200 ℃ of hot temperature are accompanied in middle path.Insulation companion's thermal technology improves, and selects conduction oil as heat medium, and heat preservation technology improves, can be by regulating the furnace outlet temperature and the conduction oil flow is controlled, the hot temperature of companion in middle path.
The technical problem to be solved in the present invention can also come further to realize that per 16 of described spinnerets is positioned on the base by the following technical programs, and spinnerets is divided into two rows on base, the setting of staggering mutually of the spinnerets between two rows.
For adapting to 32 spinning, the static mixer that the present invention increases newly reduces the adverse effect that temperature, the time of staying, viscosity constant gradient difference that polymer radially causes are brought to spinning process in pipeline, and it plays stoste and mixes and mixing effect.The actual outlet temperature of circulatory mediator makes under the condition that ambient temperature changes in control storage tank, spinning tank, static mixer and the pipeline that the joins companion thermic devices thereof, and stoste working control temperature is stable more, homogeneous.Because a number increases, on year-on-year basis under the condition in the stoste solvent increased by 33%, simultaneously owing to spin the speed raising, the time that tow stops in the path shortens, cause the volatile quantity of solvent to increase greatly thus, therefore the invention solves homogeneity and stability after spinning air quantity, wind-warm syndrome increase, and improve solvent evaporates speed and do not influence the strand moulding.32 spinning new technologies increase by a number of 1/3, carry high-speed spinning, and production efficiency also improves more than 30%, and reducing cost surpasses 20%, improve the heat resistance of product simultaneously and improve homogeneity.
Description of drawings
Fig. 1 is a spinning technique schematic flow sheet of the present invention.
Fig. 2 is a new technology path schematic diagram.
The specific embodiment
Spandex production mainly is divided into processes such as polymerization, spinning silk winding and post processing, and current spinning process has four kinds: dry spinning, wet spinning, melt spinning and reaction method spinning, spinning new technology of the present invention are 32 dry spinnings.Stoste through polymerisation is transferred to storage tank, store after the slaking more after filtration, deaeration, enter spinning tank, by the nitrogen force feed, the gear pump supercharging enters spiral chip static mixer, and by measuring pump spue stoste in filament spinning component after filtration, be dispensed to spinnerets ejection, pressure before the measuring pump is increased to 15～20kg/cm2, behind the evaporative removal solvent wherein, is frozen into the spandex tow in spinning shaft, again through false twisting, oil, package becomes the silk volume of constant weight on up-coiler.Wherein all be provided with companion's thermic devices on storage tank, spinning tank, static mixer and the pipeline that joins thereof, companion's thermic devices adopts circulating heat exchange medium, and control heat exchange outlet medium temperature is 35～50 ℃,
Improve the rheological property of stoste in pipeline, equipment by improving inner-walls of duct fineness with minimizing elbow, reducing, it is mobile to keep-up pressure, avoid convergence to flow and drag mobile, stable control by pressure and temperature, the heat endurance and the chemical stability that guarantee stoste do not change, thereby obtain better spinnability.
Filament spinning component comprises unitized substructure, spinnerets, filter, hot-water circulation pipe, seal etc.Optimize the position of spinnerets on base, described spinnerets is provided with 32, and per 16 are positioned on the base, and spinnerets is divided into two rows on every base, the setting of staggering mutually of the spinnerets between two rows.Improve the hot water circuit situation to reduce the difference between the spinnerets.By the research of convection cell flow velocity and shearing force in micropore, the distribution of spinnerets radial dimension and spinneret orifice is designed and adjusts.
Described path height increases by 1.2 meters, and area of section increases by 20%, increases flow-stopping plate, path wind lumen pore plate, inlet side air regulator rectifier cubice structure and sealing.The path is made of last path 1, middle path 7, following path 6, upward, all being provided with the employing conduction oil outside the middle path is companion's thermic devices 3 of medium, last path 1 is provided with hot-wind inlet 2 and goes up air outlet 8, the temperature of the hot blast at hot-wind inlet 2 places is 230～250 ℃, air outlet 4 and following air outlet 5 during following path 6 is provided with, following air outlet 5 is positioned at 10-20cm place, end opening top, path, and last air outlet 8, middle air outlet 4 and following air outlet 5 threes' air output ratio is 65%:25%:10%.The described hot temperature of companion that goes up the path is 210～230 ℃, and middle path is accompanied hot temperature 180-200 ℃.Insulation companion's thermal technology improves, and selects conduction oil as heat medium, and heat preservation technology improves, can be by regulating the furnace outlet temperature and the conduction oil flow is controlled, the hot temperature of companion in middle path.
Use new type false twist cap, under the prerequisite that guarantees the false twisting effect, reduce rotation degree and the jitter amplitude of tow in running, further promote the homogeneity and the stability of silk.Silk after adopting novel thread guide with false twisting carries out secondary seal wire and bilateral seal wire so that do not increasing the coiling problem that solves 32 up-coilers under the additional tension situation.32 winding heads that spin are than existing 24 winding heads that spin long 1/3, adopt 32 head heights speed take-up winding, increase automatic supportive device, make wire-beam forming more scientific and reasonable, be fit to back road client's unwinding simultaneously more, and can adjust according to client's specific requirement.
Claims (3)
1. new technology of spandex fiber, it is characterized in that: the stoste through polymerisation is transferred to storage tank, store after the slaking more after filtration, deaeration, enter spinning tank, enter static mixer by nitrogen force feed, gear pump supercharging, and by measuring pump spue stoste in filament spinning component after filtration, be dispensed to spinnerets ejection, in spinning shaft behind the evaporative removal solvent wherein, be frozen into the spandex tow, again through false twisting, oil, package becomes the silk volume of constant weight on up-coiler, and described spinnerets is provided with 32
Be increased to 15～20kg/cm by the pressure of gear pump supercharging before with measuring pump
2, wherein on storage tank, spinning tank, static mixer and the pipeline that joins thereof, all being provided with companion's thermic devices, companion's thermic devices adopts circulating heat exchange medium, and control heat exchange outlet medium temperature is 35～50 ℃,
Described path is made of last path (1), middle path (7), following path (6), upward, all being provided with the employing conduction oil outside middle path (1,7) is companion's thermic devices (3) of medium, last path (1) is provided with hot-wind inlet (2) and goes up air outlet (8), the temperature of the hot blast that hot-wind inlet (2) is located is 230～250 ℃, following path (6) is provided with middle air outlet (4) and following air outlet (5), and last air outlet (8), middle air outlet (4) and following air outlet (5) three's air output ratio is 65%: 25%: 10%.
2. new technology of spandex fiber according to claim 1 is characterized in that: the described hot temperature of companion that goes up path (1) is 210～230 ℃, hot temperature 180-200 ℃ of middle path (7) companion.
3. new technology of spandex fiber according to claim 1 is characterized in that: per 16 of described spinnerets is positioned on the base, and spinnerets is divided into two rows on every base, the spinnerets setting of staggering mutually between two rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610040321XA CN100422398C (en) | 2006-05-15 | 2006-05-15 | Novel spandex spinning process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610040321XA CN100422398C (en) | 2006-05-15 | 2006-05-15 | Novel spandex spinning process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1904152A CN1904152A (en) | 2007-01-31 |
| CN100422398C true CN100422398C (en) | 2008-10-01 |
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| CNB200610040321XA Expired - Fee Related CN100422398C (en) | 2006-05-15 | 2006-05-15 | Novel spandex spinning process |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760798B (en) * | 2009-12-24 | 2012-07-18 | 烟台泰和新材料股份有限公司 | Manufacturing method of spandex heavy denier yarn |
| CN101899720B (en) * | 2010-07-13 | 2012-11-07 | 浙江四海氨纶纤维有限公司 | Air suction device of spandex spinning corridor and process thereof |
| CN103911679B (en) * | 2011-09-19 | 2016-06-08 | 郑州中远氨纶工程技术有限公司 | Spinning station and the polyurethane fiber production method based on this spinning station |
| CN103397392B (en) * | 2013-07-02 | 2016-08-31 | 焦作市卷烟材料有限公司 | Spinning slurry blowing pipeloop system |
| CN104389033B (en) * | 2014-12-04 | 2017-07-21 | 郑州中远氨纶工程技术有限公司 | Elastomer dry spinning temperature-controlled box |
| CN107268094A (en) * | 2017-08-09 | 2017-10-20 | 浙江华峰氨纶股份有限公司 | A kind of special gas of spandex fibre wraps up in silk spinning silk device |
| CN108950850B (en) * | 2018-09-27 | 2021-08-24 | 福建省大嘉针织有限责任公司 | Method for manufacturing stretching color-changing polyester spandex blended knitted fabric |
| CN111441120A (en) * | 2020-04-20 | 2020-07-24 | 杭州舒尔姿氨纶有限公司 | Production method and application of heavy denier spandex yarn containing parallel multi-strand yarn |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6248273B1 (en) * | 1997-02-13 | 2001-06-19 | E. I. Du Pont De Nemours And Company | Spinning cell and method for dry spinning spandex |
| CN1403642A (en) * | 2002-11-01 | 2003-03-19 | 吕涛 | Prepn process and apparatus of polyurethane fiber |
| JP2003147636A (en) * | 2001-11-06 | 2003-05-21 | Toyobo Co Ltd | Polyurethane elastic yarn and method for producing the same |
| CN2600457Y (en) * | 2003-01-17 | 2004-01-21 | 江阴市绿色环保工程有限公司 | Spandex spinning stack |
| CN1509352A (en) * | 2001-04-19 | 2004-06-30 | 株式会社可隆 | Polyurethane type elastic fiber and process of preparing for the same |
| CN1544718A (en) * | 2003-11-26 | 2004-11-10 | 江阴中绿化纤工艺技术有限公司 | Spinning process by differential spandex continuous polymerization dry method |
| CN1727529A (en) * | 2005-07-22 | 2006-02-01 | 江阴中绿化纤工艺技术有限公司 | Circular corridor for spinning of urethane elastic fiber |
-
2006
- 2006-05-15 CN CNB200610040321XA patent/CN100422398C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6248273B1 (en) * | 1997-02-13 | 2001-06-19 | E. I. Du Pont De Nemours And Company | Spinning cell and method for dry spinning spandex |
| CN1509352A (en) * | 2001-04-19 | 2004-06-30 | 株式会社可隆 | Polyurethane type elastic fiber and process of preparing for the same |
| JP2003147636A (en) * | 2001-11-06 | 2003-05-21 | Toyobo Co Ltd | Polyurethane elastic yarn and method for producing the same |
| CN1403642A (en) * | 2002-11-01 | 2003-03-19 | 吕涛 | Prepn process and apparatus of polyurethane fiber |
| CN2600457Y (en) * | 2003-01-17 | 2004-01-21 | 江阴市绿色环保工程有限公司 | Spandex spinning stack |
| CN1544718A (en) * | 2003-11-26 | 2004-11-10 | 江阴中绿化纤工艺技术有限公司 | Spinning process by differential spandex continuous polymerization dry method |
| CN1727529A (en) * | 2005-07-22 | 2006-02-01 | 江阴中绿化纤工艺技术有限公司 | Circular corridor for spinning of urethane elastic fiber |
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| CN1904152A (en) | 2007-01-31 |
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Granted publication date: 20081001 Termination date: 20110515 |