CN101831718A - Method for preparing super-thick denier polyester monofilament - Google Patents
Method for preparing super-thick denier polyester monofilament Download PDFInfo
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- CN101831718A CN101831718A CN 201010180384 CN201010180384A CN101831718A CN 101831718 A CN101831718 A CN 101831718A CN 201010180384 CN201010180384 CN 201010180384 CN 201010180384 A CN201010180384 A CN 201010180384A CN 101831718 A CN101831718 A CN 101831718A
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Abstract
The invention discloses a method for preparing super-thick denier polyester monofilament, which comprises the following steps: polyester melt, booster pump, melt transmitting pipeline, spinning tank body, metering pump, spinning assembly, spinning side blowing, oiling, drafting for typing and winding, wherein, in the step of spinning side blowing, air-conditioning air blown from a side blowing air-conditioner is re-cooled, and the parameters of the side blowing after re-cooling are controlled as follows: temperature is 17 DEG C to 19 DEG C, the humidity is 75% to 90%, the wind speed is 0.7m/s to 0.9m/s; in the step of oiling, filament after side blowing and re-cooling is oiled and cooled two times, and the total oiling rate of the filament is controlled to be 0.7 to 0.9%; the oiling parameters for the first time are as follow: the oiling rate is 0.2% to 0.3%, and the oil concentration is 13% to 18%; the oiling parameters for the second time are as follows: the oiling rate is 0.5% to 0.6%, and the oil concentration is 18% to 22%. The method can be used for producing conventional FDY products and super-thick denier master monofilament at the same time.
Description
Technical field
The present invention relates to a kind of production technology of chemical fibre spinning, especially a kind of preparation method of super-thick denier polyester monofilament.
Background technology
The polyester filament of filament number more than 10D is widely used in civilian as aspects such as wedding gauze kerchief, DINNER JACKET, curtain, gold and silver silk thread, knit fabric, warp-knitted face fabric, Weft Knitted Shell Fabric and industrial printing screen, papermaking screen cloth, ribbon, filtering material, conveyer belt, pipe network braidings.Traditional monofilament polyester production, major part are to finish by conventional spinning technique, and speed of production is 600～900m/min, and the monofilament efficient that this method is produced is lower, dyeability is inhomogeneous, can't satisfy market demand fully.Adopt the FDY high speed single step spining art, speed of production can reach more than the 4000m/min, not only improved production efficiency, and product quality and dyeing uniformity are good, suitably adjust coiling drafting multiple and temperature simultaneously, but production intensity is higher, the low coarse denier monofilaments product that shrinks of the better middle intensity of DIMENSIONAL STABILITY, has satisfied customer demand preferably.
Utilize the existing polyester filament of FDY device fabrication filament number below 20D, strengthen cooling effect by improving the lateral blowing air quantity, suitably reducing method such as spinning speed can spin; But be difficult to reach requirement because of tow cooling and drafting forming temperature when producing the above monofilament of 20D, the product quality instability of production, broken end is many, can't ordinary production in the time of seriously.
Because the needs of producing, when less or demand is comparatively urgent as the order of super-thick denier polyester monofilament, enterprise wishes when producing conventional FDY product, the some of opening up production line is as super-thick denier polyester monofilament production, but because existing FDY equipment is not enough to satisfy the demand of super-thick denier polyester monofilament usually, in addition, strengthen wind speed even utilize, methods such as reduction wind-warm syndrome reach the technological requirement of coarse denier polyester monofilaments, when producing simultaneously with conventional FDY product, the operational factor that monofilament is produced is very big to the influential while energy consumption of the product quality of conventional FDY, has increased production cost.So in present chemical fiber factory, super-thick denier polyester monofilament can only be produced separately.
Summary of the invention
What the objective of the invention is to provide for the deficiency that solves above-mentioned technology a kind ofly produces on conventional FDY product line, the preparation method of the super-thick denier polyester monofilament that can produce simultaneously with conventional FDY product.
In order to achieve the above object, the preparation method of the super-thick denier polyester monofilament that the present invention is designed, it mainly comprises following production stage: polyester fondant, booster pump, melt Conveying pipeline, spinning manifold, measuring pump, filament spinning component, spinning lateral blowing, oil, drafting forming and coiling, it is characterized in that comprising following measure in spinning lateral blowing step: the air-conditioning wind that air quench condition is blown out carries out the secondary cooling, and the cooled lateral blowing parameter of control secondary is: 17 ℃～19 ℃ of temperature, humidity 75%～90%, wind speed 0.7m/s～0.9m/s; Cool off by secondary, can reduce the temperature of lateral blowing, when super-thick denier polyester monofilament and conventional FDY product are produced simultaneously, can be only carry out the secondary cooling at the lateral blowing of super-thick denier polyester monofilament production, the lateral blowing that conventional FDY is produced does not then process, thereby can satisfy both production requirements simultaneously.
Comprise following measure in the described step that oils: to carrying out the cooling that oils for twice through the cooled tow of lateral blowing, the control tow always rate of oiling is 0.7%～0.9%, and wherein, the parameter that oils for the first time is: the rate 0.2%～0.3% that oils, oil dense 13%～18%; The parameter that oils for the second time is: the rate of oiling is 0.5%～0.6%, and oil is dense to be 18%～22%.The cooling that oils by twice can further improve cooling effect, in conjunction with the secondary refrigeration of above-mentioned lateral blowing, can effectively guarantee the cooling requirement when super-thick denier polyester monofilament is produced.
As preferably, the preparation method of this super-thick denier polyester monofilament adopts and the air-conditioning wind that secondary cooling apparatus blows out air quench condition is set at spinning lateral blowing entrance location place carries out the secondary cooling, makes air-conditioning wind reach technological requirement.Preferred scheme is that secondary cooling apparatus adopts water circulation cooling device.
As preferably, the described cooling that oils for twice be through the cooled tow of lateral blowing at first by one on the oil ring cooling that oils, the tow of annular array has also given tow certain cooling when last oil ring oils homogenize, and the following lateral blowing of last oil ring still continues tow is cooled off, making it the even stable state of cooling forming process carries out, cooling internal and external temperature unanimity is avoided the appearance of skin-core structure; And then carry out secondary through finish oil disc and oil.When needs are produced super-thick denier polyester monofilament and conventional FDY product simultaneously, secondary cooling apparatus can be placed the air quench condition place of the corresponding Production Regional of super-thick denier polyester monofilament on the production line, last oil ring places air regulator correct position place; Thereby only the lateral blowing to this place cools off and the homogenize cooling that oils.The described oil ring of going up preferably is arranged on 1.0m～1.3m position, filament spinning component below.
As preferably, in described drafting forming step, tow is carried out drafting forming by two hot-rollings, the first hot-rolling speed is 900m/min～1200m/min, temperature is 98 ℃～110 ℃; The second hot-rolling speed is 3800m/min～4200m/min, and temperature is 145 ℃～175 ℃.
The preparation method of the super-thick denier polyester monofilament that the present invention obtains can be at same production line, produce the female silk of conventional FDY product and super coarse denier monofilaments simultaneously, efficiently solves the difficult problem that conventional FDY product and super coarse denier monofilaments can't be produced simultaneously on same production line; Not only reduce energy consumption and supplies consumption, significantly reduced the input of equipment rehabilitation; And satisfied the technological requirement of super coarse denier monofilaments, make and variety renovation flexible and convenient in the production process can better satisfy the requirement of client and production.Certainly, simple super-thick denier polyester monofilament also can adopt this method production.
Description of drawings:
Fig. 1 is the structural representation of lateral blowing secondary cooling;
Fig. 2 is twice structural representation that oils.
Among the figure: filament spinning component 1, spinnerets 2, last oil ring 3, finish oil disc 4, hot-rolling 5, winding mechanism 6, quenching air window 7, water circulation cooling device 8, air-conditioning wind 9.
The specific embodiment
The invention will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment 1
The preparation method of the described super-thick denier polyester monofilament of present embodiment, it mainly comprises following production stage: polyester fondant, booster pump, melt Conveying pipeline, spinning manifold, measuring pump, filament spinning component, spinning lateral blowing, oil, drafting forming, coiling, comprising following measure in spinning lateral blowing step: adopt the air-conditioning wind that 8 pairs of air quench conditions of water circulation cooling device blow out to be set at spinning lateral blowing entrance location place to carry out the secondary cooling, the cooled lateral blowing parameter of control secondary is: 17 ℃ of temperature, humidity 75%, wind speed 0.7m/s;
In the described step that oils: to carrying out the cooling that oils for twice through the cooled tow of lateral blowing, the control tow always rate of oiling is 0.7%, and wherein, the parameter that oils for the first time is: the rate 0.2% that oils, oil dense 13%; The parameter that oils for the second time is: the rate of oiling is 0.5%, and oil is dense to be 18%, wherein, described twice cooling that oils be through the cooled tow of lateral blowing at first by one on oil ring 3 cooling that oils, and then carry out secondary through finish oil disc 4 and oil.The described oil ring 3 of going up is arranged on 1.0m position, filament spinning component 1 below.
During production, 285～295 ℃ polyester fondant is metered in the filament spinning component 1 by the spinning manifold measuring pump, behind spinnerets 2 extrusion moldings, 20 ℃ the temperature that water circulation cooling device 8 is sent air quench condition, 75% humidity meet the air-conditioning wind that conventional FDY production is used, evenly blow to each tow with 17 ℃ temperature, 75% humidity, the wind speed of 0.7m/s by quenching air window 7 after the secondary cooling processing, tow is carried out quenching.
The quenching tow 1.0m position below the assembly by on the cooling that oils of 3 pairs of tow of oil ring, the rate that oils is 0.2%, oil is dense 13%, reaches tow that cooling requires and oils once more according to technological requirement through finish oil disc 4, the rate that oils is 0.5%, oil dense 18%; Tow always oils rate 0.7%.
Enter first, second hot-rolling 5 after tow evenly oils and carry out drafting forming, first hot-rolling, 5 speed 900m/min, 98 ℃ of hot-rolling 5 temperature; Second hot-rolling, 5 speed 3800m/min, 145 ℃ of hot-rolling 5 temperature.
Tow via one, two hot-rollings, 5 drafting forming after, the rational winding tension of winding mechanism 6 control carries out finished product and reels.
The product of producing passes through to divide silk on minute silk machine via following road user, obtains the monofilament of corresponding radical, carries out the production and processing of corresponding next procedure, also can directly use according to the downstream product technological requirement.
The preparation method of the described super-thick denier polyester monofilament of present embodiment, it is used for producing simultaneously super-thick denier polyester monofilament and conventional FDY product, the preparation method of this super-thick denier polyester monofilament mainly comprises following production stage: polyester fondant, booster pump, the melt Conveying pipeline, spinning manifold, measuring pump, filament spinning component, the spinning lateral blowing, oil, drafting forming, reel, in spinning lateral blowing step, comprise following measure: adopt the air-conditioning wind that 8 pairs of air quench conditions of water circulation cooling device blow out to be set at spinning lateral blowing entrance location place to carry out the secondary cooling, the cooled lateral blowing parameter of control secondary is: 19 ℃ of temperature, humidity 90%, wind speed 0.9m/s, under same air quench condition control other spins the position, still the conventional FDY of ordinary production;
In the described step that oils: to carrying out the cooling that oils for twice through the cooled tow of lateral blowing, the control tow always rate of oiling is 0.9%, and wherein, the parameter that oils for the first time is: the rate 0.3% that oils, oil dense 18%; The parameter that oils for the second time is: the rate of oiling is 0.6%, and oil is dense to be 22%, wherein, described twice cooling that oils be through the cooled tow of lateral blowing at first by one on oil ring 3 cooling that oils, and then carry out secondary through finish oil disc 4 and oil.The described oil ring 3 of going up is arranged on 1.3m position, filament spinning component 1 below.
During production, 285～295 ℃ polyester fondant is metered in the filament spinning component 1 by the spinning manifold measuring pump, behind spinnerets 2 extrusion moldings, 22 ℃ the temperature that water circulation cooling device 8 is sent air quench condition, 90% humidity meet the air-conditioning wind that conventional FDY production is used, evenly blow to each tow with 19 ℃ temperature, 90% humidity, the wind speed of 0.9m/s by quenching air window 7 after the secondary cooling processing, tow is carried out quenching.
The quenching tow 1.3m position below the assembly by on oil ring 3 to the cooling that oils of each tow, the rate that oils is 0.3%, oil is dense 18%, reaches tow that cooling requires and oils once more according to technological requirement through finish oil disc 4, the rate that oils is 0.6%, oil dense 22%; Tow always oils rate 0.9%.
Enter first, second hot-rolling 5 after tow evenly oils and carry out drafting forming, first hot-rolling, 5 speed 1200m/min, 110 ℃ of hot-rolling 5 temperature; Second hot-rolling, 5 speed 4200m/min, 175 ℃ of hot-rolling 5 temperature.
Tow via one, two hot-rollings, 5 drafting forming after, the rational winding tension of winding mechanism 6 control carries out finished product and reels.
The product of producing passes through a minute silk is obtained the monofilament of corresponding radical on minute silk machine via following road user, carries out the production and processing of corresponding next procedure, also can directly use according to the downstream product technological requirement.
Under the control of same air quench condition other spins the position, the conventional FDY of ordinary production still, and its processing range is: 285～295 ℃ of melt temperatures, 22 ℃ of quenching air temperature, humidity 80%, wind speed 0.65m/s; Oil tanker once oils, and the rate of oiling is 0.8%; First hot-rolling, 5 speed 1400m/min; 90 ℃ of hot-rolling 5 temperature; Second hot-rolling, 5 speed 4500m/min, 130 ℃ of hot-rolling 5 temperature.
The super thick dawn FDY monofilament mother silk that the preparation method of the described super-thick denier polyester monofilament of present embodiment produces and the comparison of conventional FDY product:
| Title | The female silk of super thick dawn FDY monofilament | Conventional FDY product |
| Specification | 260dtex/10f (light is arranged) | 167dtex/72f (light is arranged) |
| Fiber number (dtex) | ??261.6 | ??168.1 |
| Fracture strength (cn/dtex) | ??5.32 | ??4.08 |
| Elongation (%) | ??21 | ??27 |
| Boiling water shrinkage (%) | ??4.9 | ??8.5 |
| Oil content (%) | ??0.7 | ??0.8 |
| Bar is done cv% | ??1.2 | ??1.3 |
Claims (8)
1. the preparation method of a super-thick denier polyester monofilament, it mainly comprises following production stage: polyester fondant, booster pump, melt Conveying pipeline, spinning manifold, measuring pump, filament spinning component, spinning lateral blowing, oil, drafting forming and coiling, its feature is being to comprise following measure in spinning lateral blowing step: the air-conditioning wind that air quench condition is blown out carries out the secondary cooling, and the cooled lateral blowing parameter of control secondary is: 17 ℃～19 ℃ of temperature, humidity 75%～90%, wind speed 0.7m/s～0.9m/s;
Comprise following measure in the described step that oils: to carrying out the cooling that oils for twice through the cooled tow of lateral blowing, the control tow always rate of oiling is 0.7%～0.9%, and wherein, the parameter that oils for the first time is: the rate 0.2%～0.3% that oils, oil dense 13%～18%; The parameter that oils for the second time is: the rate of oiling is 0.5%～0.6%, and oil is dense to be 18%～22%.
2. the preparation method of super-thick denier polyester monofilament according to claim 1 is characterized in that adopting the air-conditioning wind that secondary cooling apparatus blows out air quench condition is set at spinning lateral blowing entrance location place carries out the secondary cooling.
3. the preparation method of super-thick denier polyester monofilament according to claim 2 is characterized in that described secondary cooling apparatus adopts water circulation cooling device.
4. according to the preparation method of claim 1 or 2 or 3 described super-thick denier polyester monofilaments, it is characterized in that described twice cooling that oils be through the cooled tow of lateral blowing at first by one on the oil ring cooling that oils, and then carry out secondary through finish oil disc and oil.
5. the preparation method of super-thick denier polyester monofilament according to claim 4 is characterized in that the described oil ring of going up is arranged on 1.0m～1.3m position, filament spinning component below.
6. according to the preparation method of claim 1 or 2 or 3 described super-thick denier polyester monofilaments, it is characterized in that in described drafting forming step, by two hot-rollings tow is carried out drafting forming, the first hot-rolling speed is 900m/min～1200m/min, and temperature is 98 ℃～110 ℃; The second hot-rolling speed is 3800m/min～4200m/min, and temperature is 145 ℃～175 ℃.
7. the preparation method of super-thick denier polyester monofilament according to claim 4 is characterized in that by two hot-rollings tow being carried out drafting forming in described drafting forming step, and the first hot-rolling speed is 900m/min～1200m/min, and temperature is 98 ℃～110 ℃; The second hot-rolling speed is 3800m/min～4200m/min, and temperature is 145 ℃～175 ℃.
8. the preparation method of super-thick denier polyester monofilament according to claim 5 is characterized in that by two hot-rollings tow being carried out drafting forming in described drafting forming step, and the first hot-rolling speed is 900m/min～1200m/min, and temperature is 98 ℃～110 ℃; The second hot-rolling speed is 3800m/min～4200m/min, and temperature is 145 ℃～175 ℃.
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| CN2010101803841A CN101831718B (en) | 2010-05-24 | 2010-05-24 | Method for preparing super-thick denier polyester monofilament |
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| CN2010101803841A CN101831718B (en) | 2010-05-24 | 2010-05-24 | Method for preparing super-thick denier polyester monofilament |
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| CN101831718A true CN101831718A (en) | 2010-09-15 |
| CN101831718B CN101831718B (en) | 2012-07-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443861A (en) * | 2011-10-27 | 2012-05-09 | 江苏华亚化纤有限公司 | Intermediate-strength coarse-denier dacron FDY (Fully drawn yarn) and method for producing same |
| CN104818538A (en) * | 2015-04-24 | 2015-08-05 | 浙江美丝邦化纤有限公司 | Ultra-coarse-denier flat nylon 6 filament and method for producing the same |
| CN106521665A (en) * | 2016-10-12 | 2017-03-22 | 桐乡市中辰化纤有限公司 | Production method of bright and ultra-coarse denier16f FDY fiber |
| CN113774499A (en) * | 2021-05-31 | 2021-12-10 | 浙江盛元化纤有限公司 | Fiber-splitting female yarn spinning device capable of independently adjusting temperature of cooling air and fiber-splitting female yarn cooling method |
| CN116334780A (en) * | 2023-03-14 | 2023-06-27 | 桐昆集团浙江恒盛化纤有限公司 | Starfish fiber production and preparation process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443861A (en) * | 2011-10-27 | 2012-05-09 | 江苏华亚化纤有限公司 | Intermediate-strength coarse-denier dacron FDY (Fully drawn yarn) and method for producing same |
| CN104818538A (en) * | 2015-04-24 | 2015-08-05 | 浙江美丝邦化纤有限公司 | Ultra-coarse-denier flat nylon 6 filament and method for producing the same |
| CN106521665A (en) * | 2016-10-12 | 2017-03-22 | 桐乡市中辰化纤有限公司 | Production method of bright and ultra-coarse denier16f FDY fiber |
| CN113774499A (en) * | 2021-05-31 | 2021-12-10 | 浙江盛元化纤有限公司 | Fiber-splitting female yarn spinning device capable of independently adjusting temperature of cooling air and fiber-splitting female yarn cooling method |
| CN116334780A (en) * | 2023-03-14 | 2023-06-27 | 桐昆集团浙江恒盛化纤有限公司 | Starfish fiber production and preparation process |
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|---|---|
| CN101831718B (en) | 2012-07-04 |
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