CN102839432B - Preparation method of ultra-high-speed spinning polyester pre-oriented yarn - Google Patents
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- 238000009987 spinning Methods 0.000 title claims abstract description 60
- 229920000728 polyester Polymers 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 19
- 239000000654 additive Substances 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims abstract description 18
- 229920000193 polymethacrylate Polymers 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 25
- 238000007664 blowing Methods 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000002074 melt spinning Methods 0.000 abstract description 14
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 9
- 150000002148 esters Chemical class 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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Abstract
Description
技术领域 technical field
本发明涉及一种聚酯熔融纺丝方法，特别涉及一种超高速纺聚酯预取向丝（POY）的制备方法，属于化纤技术领域。 The invention relates to a polyester melt-spinning method, in particular to a preparation method of ultra-high-speed spinning polyester pre-oriented yarn (POY), which belongs to the technical field of chemical fibers.
背景技术 Background technique
目前，高速纺聚酯预取向丝（POY）产品主要用于加工成假捻变形丝和喷气变形丝以及复合丝，广泛应用于服装，产业和装饰地毯三大领域。国内聚酯POY一般采用3000m/min～3200m/min的高速纺丝技术制备方法获得，当纺丝速度超过上述值，POY丝的结晶、取向增加，拉伸和变形性能变差，影响了高速纺丝技术的发展及产品产量的提高。因此，如何利用现有FDY/POY设备的柔性化操作，改变工艺技术途径，将纺丝速度从3000m/min～3200m/min提高到4500m/min～5000m/min的超高速纺，或更高的纺丝速度，提供产业化生产聚酯预取向丝（POY）的制备方法，对于增加效益和利润，及化纤企业持续发展，具有重大现实意义。 At present, high-speed spinning polyester pre-oriented yarn (POY) products are mainly used for processing into false twist textured yarn, air-jet textured yarn and composite yarn, which are widely used in the three major fields of clothing, industry and decorative carpets. Domestic polyester POY is generally prepared by high-speed spinning technology of 3000m/min to 3200m/min. When the spinning speed exceeds the above value, the crystallization and orientation of POY filaments will increase, and the tensile and deformation properties will deteriorate, which will affect the high-speed spinning. The development of silk technology and the improvement of product output. Therefore, how to use the flexible operation of the existing FDY/POY equipment, change the process technology approach, and increase the spinning speed from 3000m/min to 3200m/min to 4500m/min to 5000m/min ultra-high speed spinning, or higher The spinning speed and the preparation method for industrial production of polyester pre-oriented yarn (POY) are of great practical significance for increasing efficiency and profit, and for the sustainable development of chemical fiber enterprises.
发明内容 Contents of the invention
本发明目的是为了解决现有高速纺聚酯预取向丝（POY）制备技术存在的不足，在不改动原有设备的基础上, 提供一种纺丝速度达到4500m/min～5000m/min，产量明显提高的生产聚酯POY的方法。 The purpose of the present invention is to solve the shortcomings of the existing high-speed spinning polyester pre-oriented yarn (POY) preparation technology, and provide a spinning speed of 4500m/min to 5000m/min without changing the original equipment. Significantly improved method of producing polyester POY.
为了达到上述目的，本发明采用的技术方案是提供一种超高速纺聚酯预取向丝的制备方法，包括切片干燥、熔融挤压、熔体挤出、冷却固化、油嘴上油和卷绕成形工序，其工艺条件如下： In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a preparation method of ultra-high-speed spinning polyester pre-oriented yarn, including chip drying, melt extrusion, melt extrusion, cooling and solidification, oiling of oil nozzles and winding forming Operation, its technological condition is as follows:
1、在聚酯切片中加入质量分数为1.0～5.0%的聚甲基丙烯酸酯添加剂； 1. Add polymethacrylate additives with a mass fraction of 1.0 to 5.0% in polyester chips;
2、切片与添加剂在螺杆中充分混合后，采用6级螺杆熔融挤压工艺，6级螺杆的温度分别为281±2℃、287±2℃、290±2℃、292±2℃、291±2℃和291±2℃； 2. After the slices and additives are fully mixed in the screw, a 6-stage screw melt extrusion process is adopted, and the temperatures of the 6-stage screws are 281±2°C, 287±2°C, 290±2°C, 292±2°C, 291±2°C 2°C and 291±2°C;
3、熔体经喷丝板挤出成为熔体细流后，采用环吹风冷却工艺凝固成为丝条；环吹风的工艺条件为：压力40～60Pa，风温20±2℃，湿度70±5%； 3. After the melt is extruded through the spinneret to become a thin stream of melt, it is solidified into filaments by the cooling process of ring blowing; the process conditions of ring blowing are: pressure 40 ~ 60Pa, air temperature 20±2°C, humidity 70±5 %;
4、上油集束油架安装在环吹风冷却装置下方丝条的左右两侧，离开喷丝板的距离为700±50 mm，丝条经二道油嘴上油； 4. The oiling cluster oil rack is installed on the left and right sides of the filament under the ring blowing cooling device, the distance from the spinneret is 700±50 mm, and the filament is oiled through the second oil nozzle;
5、经喷嘴上油集束后的丝束经压力为0.5±0.05 bar第一预网络器进行预网络后，输入速度为4545m/min～5050m/min的第一导丝辊，再经压力为0.7±0.05 bar的第二预网络器进行预网络后，进入速度为4545m/min～5050m/min的第二导丝辊，导丝辊为冷辊； 5. After the tow is oiled and clustered by the nozzle, it is pre-networked by the first pre-networker with a pressure of 0.5±0.05 bar, and then the first godet roller with a speed of 4545m/min～5050m/min is input, and then passed through a pressure of 0.7 After pre-internetting by the second pre-netting device with ±0.05 bar, it enters the second godet roller with a speed of 4545m/min～5050m/min, and the godet roller is a cold roller;
6、以4500m/min～5000m/min的卷绕速度进行卷绕成型，制成规格为55dtex～167dtex/24f～72f，断裂强度为2.15cN/dex～2.45cN/dex，断裂伸长率为110%～130%的的超高速纺聚酯预取向丝丝饼。 6. Winding and forming at a winding speed of 4500m/min～5000m/min, the finished specification is 55dtex～167dtex/24f～72f, the breaking strength is 2.15cN/dex～2.45cN/dex, and the breaking elongation is 110 % to 130% ultra-high-speed spinning polyester pre-oriented silk cake.
与现有技术相比，本发明的有益效果是： Compared with prior art, the beneficial effect of the present invention is:
1、在不改动原有设备的情况下, 利用现有POY/FDY生产装置，通过在熔融纺丝在线添加聚甲基丙烯酸酯添加剂，调整和控制高速纺丝成形中纤维的取向和结晶结构，以纺丝速度4500m/min～5000m/min生产聚酯POY,其产品的断裂伸长率为120%左右，聚酯POY丝的物理性质与用3000m/min～3200m/min纺丝速度纺出的常规高速纺POY性质相当，提高了产量和产品质量，生产成本大幅降低，产品利润率提高；同时，生产所消耗的水电大幅减少，节能减排，对环境保护意义重大；添加剂的添加主要是在聚合和纺丝阶段完成，没有废料排出，达到了清洁生产的目的。因此，本发明具有成本低、附加值高和产品质量好、性价比优势明显的特点。 1. Without changing the original equipment, using the existing POY/FDY production equipment, by adding polymethacrylate additives on the melt spinning line, adjust and control the orientation and crystallization structure of fibers in high-speed spinning forming, Polyester POY is produced at a spinning speed of 4500m/min to 5000m/min, and the elongation at break of the product is about 120%. Conventional high-speed spinning POY has the same properties, which improves the output and product quality, greatly reduces the production cost, and improves the product profit margin; at the same time, the water and electricity consumed in production are greatly reduced, energy saving and emission reduction are of great significance to environmental protection; the addition of additives is mainly in The polymerization and spinning stages are completed, no waste is discharged, and the purpose of clean production is achieved. Therefore, the present invention has the characteristics of low cost, high added value, good product quality and obvious advantages in cost performance.
2、采用二道上油工艺和二道网络（即将上油和网络系统改为双上油和双网络系统），克服了超高速纺POY过程中纺丝速度高而不易上油以及上油均匀性差的不足，使丝束的抱合性差、纤维的摩擦阻力大和卷绕张应力增大，生产过程中易产生毛丝和断头的难点，确保正常生产和产品质量。 2. Adopting two-stage oiling process and two-stage network (that is, changing the oiling and network system to double oiling and double network system), it overcomes the difficulty of oiling due to high spinning speed and poor oiling uniformity in the process of ultra-high-speed spinning POY The deficiencies of the tow make the cohesion of the tow poor, the friction resistance of the fiber is large, and the tensile stress of the winding increases. During the production process, it is easy to produce wool and broken ends, so as to ensure normal production and product quality.
具体实施方式 Detailed ways
下面结合实施例对本发明技术方案作进一步的描述。 The technical solution of the present invention will be further described below in conjunction with the embodiments.
本发明的一种超高速纺聚酯预取向丝的制备方法，采用聚酯切片熔融纺丝方式，其制备工艺流程为聚酯切片→干燥→螺杆熔融挤压→熔体过滤器→熔体混合器→纺丝箱体→计量泵→纺丝组件→初生纤维→冷却成形→上油集束1→上油集束2→网络1→第一导丝盘→网络2→第二导丝盘→卷绕成型→聚酯POY丝。 A method for preparing ultra-high-speed spinning polyester pre-oriented yarns of the present invention adopts the method of melt-spinning polyester chips, and its preparation process is polyester chips→drying→screw melt extrusion→melt filter→melt mixing Device→spinning box→metering pump→spinning component→spun fiber→cooling and forming→oiling bundle 1→oiling bundle 2→network 1→first godet→network 2→second godet→winding Forming→Polyester POY yarn.
在熔融纺丝中在线添加聚甲基丙烯酸酯添加剂，与聚酯切片在螺杆中充分混合熔融，获得将纺丝速度提高到4500m/min～5000m/min制备聚酯POY，其中，所述的聚甲基丙烯酸酯添加剂的添加量为聚酯原料质量分数的1.0～5.0%，所纺聚酯预取向丝的孔数为24f～72f，POY单丝纤度为1.50dtex～5.0dtex。 Add polymethacrylate additives online in melt spinning, fully mix and melt polyester chips in the screw, and increase the spinning speed to 4500m/min-5000m/min to prepare polyester POY, wherein the poly The amount of methacrylate additive added is 1.0-5.0% of the mass fraction of polyester raw materials, the number of holes in the spun polyester pre-oriented yarn is 24f-72f, and the fineness of POY monofilament is 1.50dtex-5.0dtex.
本发明的一种超高速纺聚酯预取向丝制备设备，实施中，采用聚酯切片熔融纺丝方式，它基于生产常规品种的FDY设备，包括干燥、螺杆熔融挤压装置，在螺杆熔融挤压装置的进料口上安装添加剂注入器，纺丝箱体、计量泵、纺丝组件、喷丝板纺丝装置，在喷丝板的下方安装骤冷环吹风冷却装置；二道上油集束油架安装在环吹风冷却装置下方丝束的左右两侧，离开喷丝板的距离为700±50mm处；卷绕成形装置包括第一、第二导丝辊，预网络器和卷绕机，所述的二道预网络器置于第一导丝辊的前后，以及4500m/min～5000m/min卷绕锭子。 A kind of ultra-high-speed spinning polyester pre-oriented yarn preparation equipment of the present invention, in implementation, adopts the melt-spinning mode of polyester chip, it is based on the FDY equipment of producing conventional variety, comprises drying, screw melt extrusion device, in the screw melt extrusion Additive injector, spinning box, metering pump, spinning assembly, spinneret spinning device are installed on the feeding port of the pressing device, and a quenching ring blowing cooling device is installed under the spinneret; the second oiling cluster oil rack It is installed on the left and right sides of the tow under the ring blowing cooling device, and the distance from the spinneret is 700±50mm; the winding forming device includes the first and second godet rolls, a pre-netting device and a winding machine. The second pre-internet device is placed before and after the first godet roller, and the winding spindle is 4500m/min～5000m/min.
实施例一: Embodiment one:
本实施例提供一种55dtex/24f超高速纺丝制得聚酯预取向丝。生产工艺及条件如下：聚酯切片特性粘度为0.648dl/g，在熔融纺丝中在线添加聚甲基丙烯酸酯添加剂的添加量为聚酯原料质量分数的1.0%，采用6级螺杆熔融挤压工艺，6级螺杆的温度分别为281±2℃、287±2℃、290±2℃、292±2℃、291±2℃和291±2℃；纺丝温度288℃，环吹风风压为45Pa，环吹风温度22℃；二道上油集束油架安装在环吹风冷却装置下方丝条的左右两侧，离开喷丝板的距离为700 mm处；经喷嘴上油集束后的丝束经压力为0.5±0.05 bar第一预网络器进行预网络后，输入速度为4545m/min的第一导丝辊，再经压力为0.7±0.05 bar的第二预网络器进行预网络后，进入速度为4545m/min的第二导丝辊，导丝辊为冷辊； 以4500m/min的卷绕速度纺制得到的55dtex/24f聚酯POY预取向丝丝饼，它的断裂强度为2.15cN/dtex，断裂伸长率为123%，条干不匀率CV%为1.02。 This embodiment provides a kind of 55dtex/24f ultra-high-speed spinning to prepare polyester pre-oriented yarn. The production process and conditions are as follows: the intrinsic viscosity of polyester chips is 0.648dl/g, the amount of polymethacrylate additive added online in melt spinning is 1.0% of the mass fraction of polyester raw materials, and 6-stage screw melt extrusion is used Process, the temperature of the 6-stage screw is 281±2°C, 287±2°C, 290±2°C, 292±2°C, 291±2°C and 291±2°C; the spinning temperature is 288°C, and the blower pressure is 45Pa, ambient blowing temperature 22°C; the second oiling and clustering oil frame is installed on the left and right sides of the filament under the ambient blowing cooling device, and the distance from the spinneret is 700 mm; After pre-network is performed by the first pre-networker with a pressure of 0.5±0.05 bar, the input speed is 4545m/min. The second godet roll of 4545m/min, the godet roll is a cold roll; The 55dtex/24f polyester POY pre-oriented yarn cake obtained by spinning at a winding speed of 4500m/min has a breaking strength of 2.15cN/dtex , the elongation at break was 123%, and the unevenness CV% was 1.02.
实施例二： Embodiment two:
本实施例提供一种110dtex/36f超高速纺丝制得聚酯预取向丝。其生产工艺及条件如下：其超高速纺丝成形加工工艺参数及性能指标为：聚酯切片特性粘度为0.648dl/g，在熔融纺丝中在线添加聚甲基丙烯酸酯添加剂的添加量为聚酯原料质量分数的1.5%，采用6级螺杆熔融挤压工艺，6级螺杆的温度分别为281±2℃、287±2℃、290±2℃、292±2℃、291±2℃和291±2℃；纺丝温度290℃，环吹风风压为55Pa，环吹风温度22℃；二道上油集束油架安装在环吹风冷却装置下方丝条的左右两侧，离开喷丝板的距离为750 mm处；经喷嘴上油集束后的丝束经压力为0.5±0.05 bar第一预网络器进行预网络后，输入速度为4645m/min的第一导丝辊，再经压力为0.7±0.05 bar的第二预网络器进行预网络后，进入速度为4645m/min～的第二导丝辊，导丝辊为冷辊；卷绕速度4650m/min，纺制得到的110dtex/36f聚酯POY预取向丝丝饼，它的断裂强度为2.23cN/dtex，断裂伸长率为124%，条干不匀率CV%为0.95。 This embodiment provides a kind of 110dtex/36f ultra-high-speed spinning to prepare polyester pre-oriented yarn. Its production process and conditions are as follows: its ultra-high-speed spinning forming process parameters and performance indicators are: the intrinsic viscosity of polyester chips is 0.648dl/g, and the amount of polymethacrylate additives added online in melt spinning is poly 1.5% of the mass fraction of the ester raw material, using a 6-stage screw melt extrusion process, the temperatures of the 6-stage screws are 281±2°C, 287±2°C, 290±2°C, 292±2°C, 291±2°C and 291°C ±2°C; spinning temperature 290°C, ring air pressure 55Pa, ring air temperature 22°C; the second oiling cluster oil frame is installed on the left and right sides of the filament under the ring air cooling device, and the distance from the spinneret is At 750 mm; the tow after being oiled and clustered by the nozzle is pre-internetted by the first pre-internet device with a pressure of 0.5±0.05 bar, and then fed into the first godet roller with a speed of 4645m/min, and then passed through a pressure of 0.7±0.05 bar After pre-internetting in the second pre-internet device of the bar, it enters the second godet roller with a speed of 4645m/min~, and the godet roller is a chilled roller; the winding speed is 4650m/min, and the 110dtex/36f polyester POY obtained by spinning The pre-oriented silk cake has a breaking strength of 2.23cN/dtex, a breaking elongation of 124%, and a CV% of evenness unevenness of 0.95.
实施例三： Embodiment three:
本实施例提供一种167dtex/36f超高速纺丝制得聚酯POY预取向丝。其生产工艺及条件如下：其超高速纺丝成形加工工艺参数及性能指标为：聚酯切片特性粘度为0.648dl/g，在熔融纺丝中在线添加聚甲基丙烯酸酯添加剂的添加量为聚酯原料质量分数的2.0%，采用6级螺杆熔融挤压工艺，6级螺杆的温度分别为281±2℃、287±2℃、290±2℃、292±2℃、291±2℃和291±2℃；纺丝温度293℃，环吹风风压为60Pa，环吹风温度22℃；二道上油集束油架安装在环吹风冷却装置下方丝条的左右两侧，离开喷丝板的距离为730 mm处；经喷嘴上油集束后的丝束经压力为0.5±0.05 bar第一预网络器进行预网络后，输入速度为4850m/min的第一导丝辊，再经压力为0.7±0.05 bar的第二预网络器进行预网络后，进入速度为4850m/min～的第二导丝辊，导丝辊为冷辊；卷绕速度4800m/min，纺制得到的167dtex/36f聚酯POY预取向丝的断裂强度为2.31cN/dtex，断裂伸长率为126%，条干不匀率CV%为0.91。 This embodiment provides a kind of 167dtex/36f ultra-high-speed spinning to prepare polyester POY pre-oriented yarn. Its production process and conditions are as follows: its ultra-high-speed spinning forming process parameters and performance indicators are: the intrinsic viscosity of polyester chips is 0.648dl/g, and the amount of polymethacrylate additives added online in melt spinning is poly The mass fraction of the ester raw material is 2.0%, using a 6-stage screw melt extrusion process, and the temperatures of the 6-stage screws are 281±2°C, 287±2°C, 290±2°C, 292±2°C, 291±2°C and 291°C ±2°C; spinning temperature is 293°C, the air pressure of the air blower is 60Pa, and the temperature of the air blower is 22°C; the second oiling cluster oil frame is installed on the left and right sides of the filament under the air blower cooling device, and the distance from the spinneret is At 730 mm; the tow after being oiled and clustered by the nozzle is pre-internetted by the first pre-internet device with a pressure of 0.5±0.05 bar, and then fed into the first godet roller with a speed of 4850m/min, and then passed through a pressure of 0.7±0.05 bar After pre-internetting in the second pre-netting device of bar, it enters the second godet roller with a speed of 4850m/min~, and the godet roller is a chilled roller; the winding speed is 4800m/min, and the 167dtex/36f polyester POY obtained by spinning The breaking strength of the pre-oriented yarn is 2.31cN/dtex, the breaking elongation is 126%, and the evenness unevenness CV% is 0.91.
实施例四： Embodiment four:
本实施例提供一种167dtex/72f超高速纺丝制得聚酯POY预取向丝。其生产工艺及条件如下：其超高速纺丝成形加工工艺参数及性能指标为：聚酯切片特性粘度为0.648dl/g，在熔融纺丝中在线添加聚甲基丙烯酸酯添加剂的添加量为聚酯原料质量分数的2.5%，采用6级螺杆熔融挤压工艺，6级螺杆的温度分别为281±2℃、287±2℃、290±2℃、292±2℃、291±2℃和291±2℃；纺丝温度293℃，环吹风风压为55Pa，环吹风温度22℃；二道上油集束油架安装在环吹风冷却装置下方丝条的左右两侧，离开喷丝板的距离为710 mm处；经喷嘴上油集束后的丝束经压力为0.5±0.05 bar第一预网络器进行预网络后，输入速度为4800m/min的第一导丝辊，再经压力为0.7±0.05 bar的第二预网络器进行预网络后，进入速度为4800m/min的第二导丝辊，导丝辊为冷辊；卷绕速度4750m/min，纺制得到的167dtex/72f聚酯POY预取向丝的断裂强度为2.25cN/dtex，断裂伸长率为119%，条干不匀率CV%为1.20。 This embodiment provides a kind of 167dtex/72f ultra-high-speed spinning to prepare polyester POY pre-oriented yarn. Its production process and conditions are as follows: its ultra-high-speed spinning forming process parameters and performance indicators are: the intrinsic viscosity of polyester chips is 0.648dl/g, and the amount of polymethacrylate additives added online in melt spinning is poly The mass fraction of ester raw materials is 2.5%, using a 6-stage screw melt extrusion process, and the temperatures of the 6-stage screws are 281±2°C, 287±2°C, 290±2°C, 292±2°C, 291±2°C and 291°C ±2°C; spinning temperature is 293°C, the air pressure of the ring blower is 55Pa, and the temperature of the ring blower is 22°C; the second oiling cluster oil frame is installed on the left and right sides of the filament under the ring blower cooling device, and the distance from the spinneret is At 710 mm; the tow after being oiled and clustered by the nozzle is pre-internetted by the first pre-internet device with a pressure of 0.5±0.05 bar, and then fed into the first godet roller with a speed of 4800m/min, and then passed through a pressure of 0.7±0.05 bar After the second pre-netting device of bar is pre-networked, it enters the second godet roll with a speed of 4800m/min, and the godet roll is a cold roll; the winding speed is 4750m/min, and the 167dtex/72f polyester POY pre-spun The breaking strength of the oriented yarn is 2.25cN/dtex, the breaking elongation is 119%, and the evenness unevenness CV% is 1.20.
实施例五： Embodiment five:
本实施例提供一种167dtex/36f超高速纺丝制得聚酯POY预取向丝。其生产工艺及条件如下：其超高速纺丝成形加工工艺参数及性能指标为：聚酯切片特性粘度为0.648dl/g，在熔融纺丝中在线添加聚甲基丙烯酸酯添加剂的添加量为聚酯原料质量分数的3.0%，采用6级螺杆熔融挤压工艺，6级螺杆的温度分别为281±2℃、287±2℃、290±2℃、292±2℃、291±2℃和291±2℃；纺丝温度293℃，环吹风风压为60Pa，环吹风温度22℃；二道上油集束油架安装在环吹风冷却装置下方丝条的左右两侧，离开喷丝板的距离为750 mm处；经喷嘴上油集束后的丝束经压力为0.5±0.05 bar第一预网络器进行预网络后，输入速度为5050m/min的第一导丝辊，再经压力为0.7±0.05 bar的第二预网络器进行预网络后，进入速度为5050m/min的第二导丝辊，导丝辊为冷辊；卷绕速度5000m/min，纺制得到的167dtex/36f聚酯POY预取向丝的断裂强度为2.45cN/dtex，断裂伸长率为120%，条干不匀率CV%为0.81。 This embodiment provides a kind of 167dtex/36f ultra-high-speed spinning to prepare polyester POY pre-oriented yarn. Its production process and conditions are as follows: its ultra-high-speed spinning forming process parameters and performance indicators are: the intrinsic viscosity of polyester chips is 0.648dl/g, and the amount of polymethacrylate additives added online in melt spinning is poly The mass fraction of ester raw materials is 3.0%, using a 6-stage screw melt extrusion process, and the temperatures of the 6-stage screws are 281±2°C, 287±2°C, 290±2°C, 292±2°C, 291±2°C and 291°C ±2°C; spinning temperature is 293°C, the air pressure of the air blower is 60Pa, and the temperature of the air blower is 22°C; the second oiling cluster oil frame is installed on the left and right sides of the filament under the air blower cooling device, and the distance from the spinneret is At 750 mm; the tow after being oiled and clustered by the nozzle is pre-internetted by the first pre-internet device with a pressure of 0.5±0.05 bar, and then fed into the first godet roller with a speed of 5050m/min, and then passed through a pressure of 0.7±0.05 bar After the second pre-netting device of bar is pre-networked, it enters the second godet roll with a speed of 5050m/min, and the godet roll is a cold roll; the winding speed is 5000m/min, and the 167dtex/36f polyester POY pre-spun The breaking strength of the oriented yarn is 2.45cN/dtex, the breaking elongation is 120%, and the evenness unevenness CV% is 0.81.
实施例六： Embodiment six:
本实施例提供一种110dtex/72f超高速纺丝制得聚酯POY预取向丝。其生产工艺及条件如下：其超高速纺丝成形加工工艺参数及性能指标为：聚酯切片特性粘度为0.648dl/g，在熔融纺丝中在线添加聚甲基丙烯酸酯添加剂的添加量为聚酯原料质量分数的3.5%，采用6级螺杆熔融挤压工艺，6级螺杆的温度分别为281±2℃、287±2℃、290±2℃、292±2℃、291±2℃和291±2℃；纺丝温度293℃，环吹风风压为55Pa，环吹风温度22℃；二道上油集束油架安装在环吹风冷却装置下方丝条的左右两侧，离开喷丝板的距离为650 mm处；经喷嘴上油集束后的丝束经压力为0.5±0.05 bar第一预网络器进行预网络后，输入速度为4900m/min的第一导丝辊，再经压力为0.7±0.05 bar的第二预网络器进行预网络后，进入速度为4900m/min的第二导丝辊，导丝辊为冷辊；卷绕速度4850m/min，纺制得到的167dtex/72f聚酯POY预取向丝的断裂强度为2.23cN/dtex，断裂伸长率为121%，条干不匀率CV%为1.10。 This embodiment provides a 110dtex/72f ultra-high-speed spinning polyester POY pre-oriented yarn. Its production process and conditions are as follows: its ultra-high-speed spinning forming process parameters and performance indicators are: the intrinsic viscosity of polyester chips is 0.648dl/g, and the amount of polymethacrylate additives added online in melt spinning is poly The mass fraction of ester raw materials is 3.5%, using a 6-stage screw melt extrusion process, and the temperatures of the 6-stage screws are 281±2°C, 287±2°C, 290±2°C, 292±2°C, 291±2°C and 291°C ±2°C; spinning temperature is 293°C, the air pressure of the ring blower is 55Pa, and the temperature of the ring blower is 22°C; the second oiling cluster oil frame is installed on the left and right sides of the filament under the ring blower cooling device, and the distance from the spinneret is 650 mm; the tow after being oiled and clustered by the nozzle is pre-internetted by the first pre-internet device with a pressure of 0.5±0.05 bar. After the second pre-netting device of bar is pre-networked, it enters the second godet roll with a speed of 4900m/min, and the godet roll is a cold roll; the winding speed is 4850m/min, and the 167dtex/72f polyester POY pre-spun The breaking strength of the oriented yarn is 2.23cN/dtex, the breaking elongation is 121%, and the evenness unevenness CV% is 1.10.
实施例七： Embodiment seven:
本实施例提供一种167dtex/72f超高速纺丝制得聚酯POY预取向丝。其生产工艺及条件如下：其超高速纺丝成形加工工艺参数及性能指标为：聚酯切片特性粘度为0.648dl/g，在熔融纺丝中在线添加聚甲基丙烯酸酯添加剂的添加量为聚酯原料质量分数的4.0%，采用6级螺杆熔融挤压工艺，6级螺杆的温度分别为281±2℃、287±2℃、290±2℃、292±2℃、291±2℃和291±2℃；纺丝温度293℃，环吹风风压为55Pa，环吹风温度22℃；二道上油集束油架安装在环吹风冷却装置下方丝条的左右两侧，离开喷丝板的距离为700 mm处；经喷嘴上油集束后的丝束经压力为0.5±0.05 bar第一预网络器进行预网络后，输入速度为4950m/min的第一导丝辊，再经压力为0.7±0.05 bar的第二预网络器进行预网络后，进入速度为4950m/min的第二导丝辊，导丝辊为冷辊；卷绕速度4900m/min，纺制得到的167dtex/72f聚酯POY预取向丝的断裂强度为2.45cN/dtex，断裂伸长率为130%，条干不匀率CV%为1.10。 This embodiment provides a kind of 167dtex/72f ultra-high-speed spinning to prepare polyester POY pre-oriented yarn. Its production process and conditions are as follows: its ultra-high-speed spinning forming process parameters and performance indicators are: the intrinsic viscosity of polyester chips is 0.648dl/g, and the amount of polymethacrylate additives added online in melt spinning is poly The mass fraction of ester raw materials is 4.0%, using a 6-stage screw melt extrusion process, and the temperatures of the 6-stage screws are 281±2°C, 287±2°C, 290±2°C, 292±2°C, 291±2°C and 291°C ±2°C; spinning temperature is 293°C, the air pressure of the ring blower is 55Pa, and the temperature of the ring blower is 22°C; the second oiling cluster oil frame is installed on the left and right sides of the filament under the ring blower cooling device, and the distance from the spinneret is At 700 mm; the tow after being oiled and clustered by the nozzle is pre-internetted by the first pre-internet device with a pressure of 0.5±0.05 bar. After the second pre-netting device of bar is pre-netted, it enters the second godet roll with a speed of 4950m/min, and the godet roll is a cold roll; the winding speed is 4900m/min, and the 167dtex/72f polyester POY pre-spun The breaking strength of the oriented yarn is 2.45cN/dtex, the breaking elongation is 130%, and the evenness unevenness CV% is 1.10.
实施例八： Embodiment eight:
本实施例提供一种167dtex/72f超高速纺丝制得聚酯POY预取向丝。其生产工艺及条件如下：其超高速纺丝成形加工工艺参数及性能指标为：聚酯切片特性粘度为0.648dl/g，在熔融纺丝中在线添加聚甲基丙烯酸酯添加剂的添加量为聚酯原料质量分数的5.0%，采用6级螺杆熔融挤压工艺，6级螺杆的温度分别为281±2℃、287±2℃、290±2℃、292±2℃、291±2℃和291±2℃；纺丝温度293℃，环吹风风压为55Pa，环吹风温度22℃；二道上油集束油架安装在环吹风冷却装置下方丝条的左右两侧，离开喷丝板的距离为730 mm处；经喷嘴上油集束后的丝束经压力为0.5±0.05 bar第一预网络器进行预网络后，输入速度为5050m/min的第一导丝辊，再经压力为0.7±0.05 bar的第二预网络器进行预网络后，进入速度为5050m/min的第二导丝辊，导丝辊为冷辊；卷绕速度5000m/min，纺制得到的167dtex/72f聚酯POY预取向丝的断裂强度为2.40cN/dtex，断裂伸长率为121%，条干不匀率CV%为1.02。 This embodiment provides a kind of 167dtex/72f ultra-high-speed spinning to prepare polyester POY pre-oriented yarn. Its production process and conditions are as follows: its ultra-high-speed spinning forming process parameters and performance indicators are: the intrinsic viscosity of polyester chips is 0.648dl/g, and the amount of polymethacrylate additives added online in melt spinning is poly The mass fraction of the ester raw material is 5.0%, using a 6-stage screw melt extrusion process, and the temperatures of the 6-stage screws are 281±2°C, 287±2°C, 290±2°C, 292±2°C, 291±2°C and 291°C ±2°C; spinning temperature is 293°C, the air pressure of the ring blower is 55Pa, and the temperature of the ring blower is 22°C; the second oiling cluster oil frame is installed on the left and right sides of the filament under the ring blower cooling device, and the distance from the spinneret is At 730 mm; the tow after being oiled and clustered by the nozzle is pre-internetted by the first pre-internet device with a pressure of 0.5±0.05 bar, and then fed into the first godet roller with a speed of 5050m/min, and then passed through a pressure of 0.7±0.05 bar After the second pre-netting device of bar is pre-netted, it enters the second godet roll with a speed of 5050m/min, and the godet roll is a cold roll; the winding speed is 5000m/min, and the 167dtex/72f polyester POY pre-spun The breaking strength of the oriented yarn was 2.40cN/dtex, the breaking elongation was 121%, and the evenness unevenness CV% was 1.02.
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| CN104294394B (en) * | 2013-07-17 | 2016-04-20 | 福建百宏聚纤科技实业有限公司 | The processing technology of the pre-network long filament of POY bicomponent filament yarn multiple tracks |
| CN104878460A (en) * | 2015-04-29 | 2015-09-02 | 浙江海利得新材料股份有限公司 | Production method of anti-wicking ultralow-shrinkage industrial polyester filaments |
| CN105839247A (en) * | 2016-06-07 | 2016-08-10 | 苏州龙杰特种纤维股份有限公司 | FDY (fully drawn yarn) equipment for producing POY (pre-oriented yarn) fibers and POY fiber production method thereof |
| CN106087085A (en) * | 2016-07-26 | 2016-11-09 | 桐乡市中辰化纤有限公司 | Single cake 576f surpasses the production method of porous POY polyester filament |
| CN108823662A (en) * | 2018-07-17 | 2018-11-16 | 桐昆集团股份有限公司 | A kind of the dual network structure and its technique optimization method of winding head |
| CN109082720B (en) * | 2018-09-30 | 2023-06-27 | 湖南中泰特种装备有限责任公司 | Method and equipment for improving stability of spinning pile in pre-spinning process |
| CN116732622B (en) * | 2023-06-19 | 2024-05-10 | 桐昆集团浙江恒通化纤有限公司 | Triangular fiber and preparation method thereof |
| CN116716672B (en) * | 2023-06-19 | 2024-04-16 | 桐昆集团浙江恒通化纤有限公司 | Soft light special-shaped polyester pre-oriented yarn and manufacturing method thereof |
| CN118668307B (en) * | 2024-08-22 | 2024-11-15 | 桐昆集团浙江恒通化纤有限公司 | A production system and method for fully rolled polyester pre-oriented yarn |
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| CN1392906A (en) * | 2000-09-28 | 2003-01-22 | 东丽工程株式会社 | Polyester fiber and production method therefor |
| CN1534119A (en) * | 2003-03-27 | 2004-10-06 | 中国石化仪征化纤股份有限公司 | Method of making draw deformed silk cake using preorientated silk |
| CN101550608A (en) * | 2009-05-01 | 2009-10-07 | 洪桂焕 | Production process for spinning polyester pre-oriented yarn by waste polyester bottle chips |
| CN101787583A (en) * | 2010-03-13 | 2010-07-28 | 浙江理工大学 | Method for preparing continuous polymerization directly-spun high-shrinkage polyester filaments |
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| CN102839432A (en) | 2012-12-26 |
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