竹纤维/Lyocell转杯针织纱的工艺探讨

采用转杯纺纱技术加工竹/Lyocell纤维针织纱,通过试纺对比,研究了转杯纺主要工艺参数与成纱质量的关系,为合理选择工艺参数,提高竹/Lyocell纤维针织纱的成纱质量提供参考.     

Lyocell/Amicor抗菌纤维混纺针织纱的转杯纺工艺研究

Lyocell纤维具有优良的物理机械性能，Amicor是一种抗菌性能良好的纤维，文章对采用转杯纺纱技术加工19．7tex Lyocell／Amicor纤维抗菌针织纱的各方案作了试纺对比，研究了转杯纺主要工艺参数与成纱质量的关系，为合理选择工艺参数，提高转杯针织纱的成纱质量提供参考。     

Lyocell纤维转杯纺纱工艺实践

采用转杯纺纱机纺制Lyocell 36.9 tex纱,介绍了前纺工序采取的工艺原则,对转杯纺纺杯直径、纺杯速度、分梳辊速度及捻系数等工艺参数的配置进行了纺纱试验,通过合理配置工艺参数和转杯纺纱元件,保证了Lyocell转杯纱的顺利纺制及成纱质量的提高.     

R40型转杯纺纱机纺针织纱的工艺优选

探讨R40型转杯纺纱机纺针织纱的工艺优化.通过对R40型转杯纺纱机纺针织纱时转杯直径、分梳辊速度、补风口位置及机械手参数设定进行试验和优选,并对转杯纱与环锭纱进行质量对比分析.指出:通过纺纱工艺的优化试验,正确配置转杯纺关键工艺参数,才能充分发挥进口设备的技术优势,生产出了满足用户需要的高质量的转杯纺针织纱.     

亚麻Lyocell混纺纱转杯纺工艺研究

探讨亚麻Lyocell混纺转杯针织纱的生产工艺。通过对亚麻原料预处理、选择合理的原料混和工艺、前纺各工序优选工艺参数和采取必要的技术措施,并对分梳辊速度、纺杯直径与转速、捻系数、阻捻盘形式及纺纱张力等转杯纺工艺进行了优选,结果使纺纱顺利进行,质量得到提高。亚麻/Lyocell 70/30 24 tex混纺转杯针织纱的较优转杯纺工艺参数为:转杯速度45 000 r/mim,分梳辊速度7 300 r/min,捻系数370。     

转杯纺产品的开发

探讨开发中细号转杯针织纱的技术要点。介绍了棉类和非棉类转杯纱及其制品的类别、原料、纱号、混纺比及其性能特点。指出:转杯纺从生产粗号纱向中细号高档用纱方向发展是当今转杯纺技术进步的重要标志。纺好中细号转杯针织纱是一个系统工程,应在充分了解针织品对转杯纱的要求的基础上,从纤维原料、前纺工艺、半制品质量和转杯纺设备与工艺等多方面入手采取有效措施,以使转杯纺针织纱质量达到要求。     

紧贴市场需求,开发转杯纺新型纱线

文章对转杯纺粘纤拉毛起绒纱、转杯纺粘纤/天丝/绢丝混纺针织纱这两个转杯纺新型纱线开发中的相关工艺技术进行了分析。在转杯纺粘纤拉毛起绒纱的研发中重点是从合理选配原料入手,并优选工艺参数及元器件,在保证成纱强力的前提下来降低转杯纺纱的捻度,使所纺制的纱线能满足经编织造后达到拉毛起绒的效果。转杯纺粘纤/天丝/绢丝混纺针织纱就是在新型的R923型半自动转杯纺纱机上生产的,在研发过程中重点把握下几个技术关键:原料选配、前纺工艺设计与工艺参数优化及转杯纺工艺设计。     

聚丙烯腈预氧化纤维阻燃产品加工技术

为提高聚丙烯腈预氧化纤维的可纺性,改善其纱线性能,采用转杯纺纱技术纺制纱线,通过各方案试纺对比,研究了转杯纺主要工艺参数与成纱质量的关系,合理选择工艺参数,提高了聚丙烯腈预氧化纤维的成纱质量。采用PANOF转杯纱开发的织物在阻燃性、耐磨性方面明显优于环锭纱织物。     

提高C 22.4 tex转杯纱质量的技术措施

研究C 22.4 tex转杯纺针织纱的纺纱工艺。分析了C 22.4 tex转杯纺针织纱生产中的要点,通过选用合适的原料,清棉合理配置打手速度,减少纤维损伤,控制短绒和棉结增加;梳棉采用"紧隔距、强分梳"的工艺,提高梳理质量;并条合理牵伸分配;转杯纺工序选用适当直径和凝棉槽角度的纺杯,控制转杯、刺辊速度、选用合适的捻系数及接头时间参数等技术措施,使22.4 tex转杯纱条干均匀,达到使用要求。     

TQF268型转杯纺纱机纺制涤棉混纺纱的实践

为了在转杯纺纱机上顺利纺制涤棉起绒纱,提高成纱质量,通过纺纱试验,对纺纱工艺进行了优化配置.通过在转杯纺工序优选纺杯型号、分梳辊型号以及合理配置纺杯速度、分梳辊速度、工艺负压等参数,使T/C 65/35 59.2 tex转杯纱成纱质量得到保证.     

双喂给双分梳转杯纺技术研究进展

转杯纺纱技术具有高速高产的优势,得到了广泛的应用,但传统转杯纺因单分梳辊的配置不适合纺制纤维性能差异较大的混纺纱,而近年来双喂给双分梳(DFO)转杯纺技术的提出为这类混纺纱开发提供了可能。概述了DFO转杯纺技术的发展历程,比较了其与传统单分梳转杯纺在纺纱器气流场分布方面的异同,探讨了2路独立喂入的纤维在纱线中的混合与分布情况,指出了DFO转杯纱质量提高的原因以及DFO纱线结构的特点。此外,综述了DFO转杯纺技术在纱线产品设计和面料开发方面的进展,展望了该技术未来的发展前景,指出DFO纺纱器的完善和颜色与结构变化花式纱的开发是其研发方向。     

Lyocell竹浆纤维喷气涡流纺纱及其针织物的开发

介绍了Lyocell竹浆纤维的研制背景、纤维特性以及喷气涡流纺的纺纱原理,探索了Lyocell竹浆纤维喷气涡流纺纱线的性能,通过电镜照片及USTER条干测试可以看出,喷气涡流纺纱线具有明显的包缠结构,利用喷气涡流纺开发的Lyocell竹浆纤维纱线条干好,并可有效减少纱线毛羽;与传统针织物相比,采用Lyocell竹浆纤维喷气涡流纺纱线生产的针织物柔软舒适,具有较好的抗起球耐摩擦性能.结果表明,利用喷气涡流纺技术开发Lyocell竹浆纤维针织产品具有良好的市场前景及环境效益.     

Comparison of fabric properties knitted by pin spacer compact and conventional compact yarns

This study examined the influence of pin spacer apparatus attachment on compact yarn quality parameters and physical properties of knitted fabrics manufactured using those 100% cotton compact yarns. Two groups of compact yarns were spun on regular compact yarn spinning frame with and without addition of pin spacer apparatus which is placed at the end of the drawing unit of regular compact yarn spinning frame. Totally eight yarns were spun at four different yarn number levels (Ne 24/1, Ne 30/1, Ne 36/1 and Ne 40/1) and two different spinning conditions (with and without pin spacer apparatus). Spun yarn types were then knitted on the industrial sized plain knitting machine. Knitted fabrics were used in the greige and dyed form to evaluate their bursting strength (kPa), dimensional change, abrasion related mass loss (%), pilling resistance, air permeability (mm/s) and colour difference. Test results were then statistically evaluated and influence of pin spacer attachment on yarn quality parameters and fabric properties was determined. In the frame of this experimental work, attachment of pin spacer apparatus improved compact yarn characteristics especially at yarn evenness, imperfection and hairiness values. In case of knitted fabric properties, it was found that pin spacer apparatus attached compact yarn utilization significantly improved air permeability properties of knitted fabrics.     

纳米铜离子抗菌纱线纺纱工艺探析

探讨纳米铜离子涤纶纤维与粘胶纤维混纺纱线的纺纱工艺。分析了纳米铜离子涤纶纤维的抗菌机理及抗菌纱线所织面料相比于抗菌后整理面料的抗菌性能优势。针对铜离子涤纶纤维与粘胶纤维的性能特点,设计纱线的纺纱工艺流程,合理配置各工序工艺参数,纺制了18.5 tex粘胶纤维/纳米铜离子涤纶纤维(60/40)混纺的抗菌纱线,并对其织物进行了抗菌性能的测试分析,结果表明:开发的混纺纱有较优异的抗菌性能。     

Investigation of the quality properties of open-end spun recycled yarns made from blends of recycled fabric scrap wastes and virgin polyester fibre

Recycled fibre obtained from fabric scrap wastes is characterized by its low quality properties in terms of inhomogeneous fibre type and non-uniformly distributed short fibre lengths, both of which negatively influences the production process and the quality of the recycled yarns made from it. One of the common ways to utilize recycled fibre in yarn production is to blend it with virgin fibres. In this research article, the quality properties of the open-end spun recycled yarns produced in different material and spinning parameters from blends of recycled fabric scrap wastes and virgin polyester fibres are investigated. As material and spinning parameters, yarn count, blend ratio, waste type, waste origin, twist coefficient and rotor diameter are selected and their effects on the quality properties of the recycled yarns are evaluated through statistical methods. Statistical results reveal that especially blend ratio, yarn count and twist coefficient significantly affect the quality properties. In general, incorporation of virgin polyester fibre to recycled fibre tends to bring about improvement in yarn quality.     

27.8 tex转杯色纺针织纱的纺纱工艺探讨

文章从原棉选配与染色、混色方法、前纺工艺和转杯纺纱工艺等方面,探讨了27.8 tex转杯色纺针织纱的纺纱工艺。