紧密赛络纺生产股线的技术

文章介绍了紧密赛络纺的纺纱原理，通过将紧密赛络纺股线与赛络纺股线、紧密纺单纱、普通环锭纺股线的质量进行对比，阐述了紧密赛络纺的纱线特征及其优越性。     

紧密纺纱线结构研究探讨

本文对比了环锭纺与紧密纺的纺纱工艺特点、纱线性能。说明了紧密纺作为一种改进的环锭纺有其极具潜力的发展势头。在纱线结构的分析方面，指出了以往研究的缺陷与不足，并简述了拟采用的研究方案。本文对于紧密纺及新型纺纱线结构的研究有一定的参考意义。     

低支羊毛在青泽451C~3型紧密纺纱机上纺高支纱的实践研究

以70支防缩羊毛纤维所纺制的粗纱为原料,采用青泽451C~3型细纱机,在相同细纱工艺条件下,分别纺制50、60、70、80和90 Nm的环锭纺和紧密纺毛纱,并对比了紧密纺和环锭纺纱线的成纱质量。结果表明,紧密纺纱线综合性能优于环锭纺纱线,尤其在纺制高支纱线时。在此基础之上,进一步探索了低支羊毛在该装置上纺高支纱的可行性。     

Elite紧密纺与传统环锭纺成纱质量对比

用相同粗纱采用传统环锭纺和Elite紧密纺纺制CJ 14.5 tex纱,对两种纱线进行了性能测试对比.结果表明:紧密纺纱技术大幅度降低了成纱毛羽,且在后加工中新增毛羽少;纱线单强和耐磨性能显著提高;两种纱线的均匀度指标相当,紧密纺纱疵好于传统环锭纺.     

紧密纺纱的生产及其产品开发

紧密纺纱技术在提升纱线品质、档次与开发新型纱线上均显示强盛的生命力,并为企业带来较好的经济效益,这是近几年来紧密纺技术在国内得到较快发展的重要原因,在国外尤其是欧美国家扬言:再过10年环锭纺将是紧密纺的天下。充分说明了紧密纺纱技术具有良好的发展前景。1紧密纺纱在环锭纺中的定位紧密纺纱技术是在传统环锭纺基础上发展的。目前全国拥有紧密纺机尚未超过1000万锭,占环锭纺比例不到10%。关于紧密纺纱今后的发展趋势,目前有3种不同观点:(1)未来环锭纺的天下属于紧密纺;(2)紧密纺适用一定范围的纺纱品种,在环锭纺中应占有一定比重;(3)目前发展     

莫代尔紧密纱与环锭纱性能的对比研究

文章简要介绍了紧密纺的技术特点,对莫代尔纤维紧密纱的强伸性能,弹性及毛羽与传统环锭纱进行了对比,结果显示:相同号数下紧密纺比环锭纺断裂强度大,紧密纺纱技术减少了细纱产生的毛羽。在纺纱工艺相同的情况下纱线号数越大,断裂强度越大,弹性恢复率越大。     

环锭纱的发展方向

描述了紧密纺纱线的特性、应用和发展方向.介绍了瑞士Altsttten公司(Rotorcraft)推出的磁-机械紧密纺纱系统RoCoS.RoCoS首次实现了花费与传统环锭纺一样的成本,生产没有疵点的纱线.RoCoS在纺各种高质量紧密纱上有巨大的优势,无论生产粗梳或精梳,还是100%纯棉、化纤或混纺织物都一样得心应手.未来磁-机械紧密纺纺纱装置将会成为现代环锭纺纱机的标准设备.     

紧密纺和环锭纺纱线及其产品质量评析

通过实验,比较了紧密纺纯棉纱线与传统环锭纺纯棉纱线的性能,并对其机织产品质量进行分析比较.紧密纺纱线质量改变后,其机织产品的内在特性和外观性能得以改善,产品的档次得到了提升.     

涤纶转杯纺纱线和摩擦纺纱线的性质

当比较涤纶短纤维的转杯纺纱线和摩擦纺纱线的性质时 ,作者发现 ,摩擦纺纺纱系统生产的纱线具有较高的强度、较小的伸长、较差的均匀度、较高的刚度和较好的弹性。过去的 1 70年 ,环锭纺纺纱系统的研究得到了多方面的提高和推荐。关于纺纱产量和质量 ,现在看来环锭纺纺纱系统似乎已经到达实用极限。因此最近几十年正致力于开发新的纺纱系统。今天 ,世界范围内已经普遍采用转杯纺和摩擦纺纺纱系统生产粗号短纤纱。纺织界已意识到转杯纺纺纱系统的潜力。最近几年 ,转杯纺纺纱系统实际支配着粗号纱领域的产业前景。摩擦纺纺纱是最近才引入的 ,…     

机械式紧密纺装置的性能测试与对比分析

探讨了机械式紧密纺装置的结构、纺纱原理。采用机械式紧密纺装置、绪森式紧密纺装置和普通环锭纺在相同条件下分别纺制了9.7、14.6、36.4 tex纱线,并且对所纺纱线的主要性能进行了实验对比分析。结果显示,机械式紧密纺装置可以有效地减小纺纱三角区的影响,极大地减少纱线有害毛羽的产生,提高强力和改善条干均匀度;机械式紧密纺装置纺36.4 tex纱线的各项性能指标与绪森式相近,纺细特纱9.7、14.6 tex纱线的各项性能逊色于绪森式。但机械式紧密纺装置相对绪森式投资和运行成本较低,同时保养维护较简单,具有更好的市场发展前景。     

The new Solo-Siro spun process for worsted yarns

Abstract

The aim of this paper was to explore whether the properties of worsted yarns, especially hairiness, can be improved by combining the Solospun and Sirospun processes into a single Solo-Siro spun process. Wool fibres of 19 and 21 μm in average diameter were spun into 40 tex yarns at different twist levels, using the conventional ring, Sirospun and Solo-Siro spun systems, respectively. These yarns were then tested for a range of properties, including hairiness, tenacity, elongation and evenness, for comparison purposes. The statistical analysis results indicate that the hairiness (S3 value) of Solo-Siro spun yarns was significantly less than that of both Sirospun and normal ring spun yarns. In addition, the tenacity of the Solo-Siro spun yarns was higher than that of the normal ring spun yarns, while changes in yarn breaking elongation were not statistically significant. For the 21 μm wool, it was found that the evenness of Solo-Siro spun yarns deteriorated slightly in comparison with that of Sirospun and conventional ring spun yarns.     

集聚纺和环锭纺细纱及织物的芯吸性能

评价了集聚纺和环锭纺细纱及其织物的芯吸性能。实验结果表明,环锭纺芯吸比集聚纱快,由环锭纱制成的织物比集聚纱制成的织物芯吸快,纱线中纤维排列太紧从芯吸的角度来讲是不利的。     

原色与脱色牦牛绒精梳纯纺纱工艺研究

针对牦牛绒纤维主体长度短、长度离散度大、含有大量粗死毛等导致无法使用现有毛精纺设备实现精梳制条的问题,通过采用便捷喂毛、高效预梳、低损伤分梳、落物充分回收装置组成高效分梳机构,将卷曲、块状绒团拉伸为基本伸直的单纤维状。在细纱工序,分别采用环锭纺、网格圈紧密纺、全聚纺纺制原色和脱色牦牛绒单纱和赛络纱,并对成纱质量进行测试分析。结果表明:16.7 tex牦牛绒纯纺纱采用环锭纺时由于断头多而导致无法正常纺纱;与网格圈紧密纺相比,全聚纺所纺原色牦牛绒纱的强伸性和条干有所改善,但毛羽质量略差;与原色牦牛绒相比,脱色牦牛绒纯纺纱的综合性能有所下降,尤其是成纱强力有所降低;与网格圈型紧密纺相比,全聚纺由于实现了对牵伸后的纤维须条的平行集聚,更有利于对脱色后强力较低的牦牛绒纤维实现更加柔性、平稳的集聚加工。     

Effect of key process variables on mechanical properties of blended vortex spun yarns

A study of significant factors and their interaction during vortex yarn spinning has been carried out to achieve desired mechanical properties of the polyethylene terephthalate/cotton blended yarns which can offer process and performance advantages. The key significant factors, i.e. feed ratio, air pressure and spindle size were varied in a mixed-level factorial design. The mechanical properties (count lea strength product, tenacity and elongation at break) were studied and feed ratio was found to significantly affect the tenacity and elongation at break of spun yarns. A significant effect of these parameters was observed on the diameter and hairiness of the Muratec vortex spun yarn.     

Influence and comparison of emerging techniques of yarn manufacturing on physical–mechanical properties of polyester-/cotton-blended yarns and their woven fabrics

Abstract

In this study, the physical–mechanical properties of ring spun, ring compact, rotor and air-vortex yarns were investigated. The study was carried with yarn having linear densities of 24.4 tex and 36.7 tex, which were then converted to woven fabrics. The ring spun yarns have higher values of strength but also with higher strength irregularities. Extra-ordinarily low hairiness was observed in air-vortex yarns due to its unique yarn formation technique. The deviation rate (DR) of yarns have correlation with the mass spectrogram of respective yarns obtained from USTER Tester 5. Rotor and air-vortex yarns exhibited higher coefficient of friction. The woven fabrics made from ring spun yarns exhibited higher tensile and tear strength with higher elongation at break. The fabrics made from air-vortex yarns have very good pilling grade due to less protruding fibres on their surface and good structural integrity.     

Study of fiber packing density of lyocell ring‐spun yarns

The study of yarn structure and related yarn properties has been the subject of much research. However, the study of the fiber packing density, which has practical significance for a number of yarns and their characteristics, has been limited to circular yarns because of the disordered yarn structure. In this paper, the fiber packing density of lyocell ring‐spun yarns is determined with the image analysis method. This method does not have any limitation with regard to the fiber cross‐sectional shape. The effect of yarn count, twist factor, spindle speed, traveler weight and front roller diameter on the fiber packing density in the yarn cross‐section is analyzed. The results of this paper and the data published in other scientific works are in good agreement.     

Influence of process parameters on properties of open-end and core-sheath friction spun acrylic yarns

The present paper is concerned with the influence of opening roller speed, difference in drum speed and suction air pressure on properties of acrylic open-end and core-sheath friction spun yarns. The results show that opening roller speed and suction air pressure have significant influence on properties of open-end friction spun yarns. In the case of core-sheath yarns, suction air pressure has influence on yarn tenacity and hairiness. However, yarn unevenness and imperfection are not significantly influenced by experimental variables. The results also show that core-sheath friction spun yarns have significantly higher yarn tenacity, modulus and work of rupture and have a lower level of yarn unevenness, imperfections, hairiness, and breaking elongation than open-end friction spun yarns.     

假捻集聚纺纱方法中基本工艺参数的作用分析

为提高棉纺环锭细纱的成纱质量,提出并介绍了假捻集聚纺纱方法.通过纺纱实验研究采用这种纺纱方法时假捻器转速比、转向以及牵伸形式对纱线条干CV值、毛羽指数、断裂强度和断裂伸长率的影响.结果表明:皮圈牵伸系统所纺纱线质量要好于简单罗拉牵伸系统;假捻器的转向要根据粗纱的捻向而定,如果粗纱为Z捻,则假捻器应为逆时针转动;假捻器转...     

多重集聚纺纱结构成形机制及其针织物性能

为解决多毛羽传统环锭纱针织困难,而光洁的常规集聚纺纱线织物手感硬的技术难题,建立串联半开放式多重集聚纺纱方法,分析多重集聚纺纱机制和结构成形特征。理论分析结果表明,多重集聚纺纱线具有外紧而内柔的结构特征。基于理论解析,在相同工艺条件下,分别采用传统环锭、常规集聚和多重集聚纱线制成针织面料,对比分析了各针织物压缩回弹、透气、抗起毛起球、耐磨、染色等性能。测试结果表明：与传统环锭纱相比,多重集聚纱线针织物耐磨、透气性、抗起毛起球性改善;与常规集聚纱线相比,多重集聚纱线针织物悬垂性、压缩回弹性和染色性能明显提高。