提高喷气质量的实践与分析

将不同前纺工艺，半制品质量对成纱强力和条干的影响进行了对比分析，同时分析了喷气纺纱自身工艺对成纱强力和条干的影响。最后介绍了在MJS802型喷气纺纱机上纺制T／C40／6013tex纱的优化工艺配置。     

提高喷气纱质量的实践与分析

将不同前纺工艺、半制品质量地成纱强力和条干的影响进行了对比分析，同时分析了喷气纺纱自身的对在纱强力和条干的影响，最后介绍了在ＭＪＳ８０２型喷敢纺纱机上纺制Ｔ／Ｃ４０／６０１３ｔｅｘ纱的优化工艺配置。     

Modal涤纶亚麻喷气涡流纱的开发及性能分析

探讨多组分喷气涡流纱的品种开发.利用喷气涡流纺纱机纺制Modal/涤纶/亚麻60/20/20 18tex纱,并对其成纱强度、毛羽、耐磨性和抗起球性及成纱质量作了测试,指出:喷气涡流纱毛羽少,耐磨性和抗起毛起球性较好、粗节和棉结较少,但成纱强力较低、条干较差.     

半精梳纯棉MVS针织纱的生产实践及成纱质量分析

文章探讨了半精梳纯棉喷气涡流纺针织纱的生产技术要点,包括原料选配、工艺参数以及在生产实践中采取的技术措施,并与同配棉的同号数环锭纺半精梳纯棉纱的成纱强度、捻度、条干、毛羽等成纱质量作了测试和分析.结果表明:喷气涡流纱捻度大、毛羽少,粗节和棉结较少,但成纱强力较低、条干较差,总体质量性能优于环锭半精梳纱.     

关于喷气纱成纱强力问题的研讨

本文对影响喷气纱成纱强力的关键问题进行了分析，在原料、半成品质量、喷气纺工艺等几个方面进行了探讨，旨在找出提高成纱强力的措施。     

MJS与MVS纱线性能对比研究

在对喷气纺(MJS)和喷气涡流纺(MVS)纺纱机理对比的基础上,以单纱强度和强力不匀等作为主要指标,通过单因子实验确定了主要工艺参数对成纱质量的影响,并采用正交实验进行优化设计,找出了最优参数值.还分析了喷气纱、喷气涡流纱与传统环锭纺在纺纯棉纱时的差异,MVS的纱线结构更接近环锭纱,在同为较优工艺条件下,MVS单纱强度、毛羽优于MJS,而MVS纱的条干比MJS略差.     

特细号纱纺纱质量控制

采用新疆长绒棉纺制CJ4．32tex特细号纱，原棉配棉品级为1．33，纤维长度为37mm。针对影响喷气织造效率和质量的原纱条干CV、单纱强力及单强CV等关键指标，运用系统工艺学原理，通过大量纺纱试验，在原料、工艺、设备等方面采取技术措施，保证了特细号纱的顺利生产及成纱质量的稳定提高。     

气流导向装置对成纱质量的影响分析

探讨了不同气流导向装置对成纱质量的影响。采用6种不同形状的气流导向装置纺制14.6tex棉纱,并对成纱毛羽、强力及条干进行测试。结果表明:气流导向装置的形状和尺寸对成纱毛羽、强力及条干都有不同程度的影响。     

细旦化纤物理性能对成纱质量的影响

重点介绍了化纤细旦化对成纱可纺支数，成纱条干成纱强力等多方面质量的影响，并简单说明细旦化纤对织物风格的影响。     

提高喷气纺成纱强力的探讨

主要介绍了喷气纺纱的成纱结构和影响其强力的因素——纤维性能、半成品质量及工艺参数，旨在找出提高成纱强力的措施。     

四组分长丝/短纤包芯复合纱的成纱工艺、结构及其性能

 研究了以涤纶、氨纶网络丝为芯丝,以羊毛、兔绒混纺须条为外包纤维,在FA506环锭细纱机上纺制四组分长丝/短纤包芯复合纱的成纱工艺。用电子单纱强力仪测试了复合纱芯丝(涤纶与氨纶的网络丝)及四组分长丝/短纤复合纱的力学性能,用纱线毛羽仪测试了四组分复合纱线的毛羽,用电子条干均匀度仪测试分析了四组分复合纱线的线密度不匀率。实验结果表明,四组分长丝/短纤复合包芯纱在小变形条件下具有良好地弹性回复率,纱线毛羽较少,条干均匀性较好,可作为一种新型的毛衫针织用纱。     

丽赛纤维喷气纺纱性能研究探讨

文章采用丽赛、天丝、粘胶、棉、涤棉为原料分别进行喷气纺纱，并将喷气纱线性能进行比较，研究丽赛喷气纺的纱线强力、条干、毛羽、弯曲刚度等性能。     

浅谈主要工艺参数对喷气纱强力的影响

主要阐述了纺纱速度、前罗拉钳口与第一喷嘴隔距、纺纱气压三大工艺参数对喷气纱强力的影响,通过实验确定最优的参数.     

喷气涡流纺工艺对粘胶/涤纶包芯纱性能的影响

为获得更高强力的喷气涡流纺纱线,通过引入涤纶长丝制备喷气涡流纺粘胶/涤纶包芯纱。采用统计分析等方法研究了芯丝线密度、纺纱速度对喷气涡流纺粘胶/涤纶包芯纱强伸性、条干不匀和毛羽的影响规律,同时对比分析了不同纺纱条件下包芯纱的结构外观。研究结果表明：芯丝线密度、纺纱速度对喷气涡流纺粘胶/涤纶包芯纱各性能响应值有不同程度的影响;纺纱速度过高或过低均不利于包芯纱成纱的强伸性提高和条干均匀性改善,纺纱速度的增加会使毛羽H值增大;在一定范围内,增加芯丝线密度有利于包芯纱强伸性的提高,随芯丝线密度的增加,包芯纱毛羽H值减小;此外,选用较大的芯丝线密度和较高的纺纱速度时,纺制的包芯纱芯丝外露现象越明显。     

特细号纱纺纱质量控制

采用新疆长绒棉纺制CJ 4.32 tex特细号纱,原棉配棉品级为1.33,纤维长度为37 mm.针对影响喷气织造效率和质量的原纱条干CV、单纱强力及单强CV等关键指标,运用系统工艺学原理,通过大量纺纱试验,在原料、工艺、设备等方面采取技术措施,保证了特细号纱的顺利生产及成纱质量的稳定提高.     

Influence of condensed spinning method on yarn property北大核心CSCD

In order to explore the effect of condensed spinning method on the yarn properties, the pure cotton yarn with 28. 1, 18. 5 and 14. 7 tex was spun by four kinds of condensed spinning methods based on traditional ring spinning such as four, roller lattice apron compact spinning, compact siro spinning, complete condensed spinning and low torque spinning. The breaking strength, breaking elongation, hairiness and evenness of the pure cotton yarn were tested and analyzed, and the reasons for the influence of four kinds of condensed spinning methods on yarn performance were explored. The experimental results show that the characteristics of the yarn structure by different condensed spinning methods will influence the inner properties of the yarn. The yarn spun with compact siro spinning has the highest strength, the yarn spun with complete condensed spinning has the most beneficial hairiness. The yarn quality of the low torque yarn is better under the effect of the false twister. It has the best evenness, and the yarn spun with compact siro spinning has the lowest total hairiness. © 2018 China Silk Association. All rights reserved.     

紧密纺、赛络纺纺纱经验及其探讨

介绍了紧密纺、赛络纺等新型纺纱技术原理及紧密纺纱线在色织面料方面的应用;分析紧密纺、赛络纺技术的优点及不足,并将其与普通纺进行对比,指出紧密纺、赛络纺技术生产的纱线质量好、强力高、毛羽少、条干均匀以及下游工序产品质量可进一步提高;加强对设备的日常维护、保养、保持器材部件清洁、运转正常,对充分发挥新型纺纱技术的优势至关重要,但企业要充分考虑其成本因素．应加速研发具有自己特色和自主知识产权,纺织企业能够接受的整机型和改造型的紧密纺细纱机及装置,以提高企业的竞争力。     

涡流纺纱线性能分析

研究涡流纺成纱性能.采用相同熟条纺制了CJ 20 tex涡流纺纱线、传统环锭纺纱线、紧密纺纱线和喷气纺纱线,通过分析对比了这4种纱的成纱结构、毛羽、耐磨性及强伸性能,认为涡流纱成纱强力虽低于紧密纺纱线和传统环锭纱,但强力不匀较好,毛羽大幅度降低,耐磨性能很好,抗起毛起球性能好.     

The effect of air-jet nozzle structural parameters on new cotton rotor-jet spun yarn properties

In this paper, a hybrid spinning system the so-called “rotor-jet spinning method” which utilizes the air-jet nozzle in rotor spinning process is presented. Thus, air-jet nozzles with different structures of 90S, 90Z, 60Z, and 30Z (the values of 90, 60, and 30 are orifice angles and S and Z are air rotational directions) were designed and constructed and then mounted between the take-up nozzle position and doffing tube in a rotor spinning machine. The air-jet pressure was changed at 0.2, 0.5, 0.8, 1, 1.2 and 1.5 bar values. The physical properties of cotton rotor-jet spun yarns with yarn count 20 Tex and nominal yarn twist of 938 TPM were investigated and compared with that of normal rotor-spun yarn. The experimental results indicated that by utilizing a 90Z air-jet nozzle at 1 bar air pressure, the highest yarn tensile strength, abrasion resistance, and twist, and lowest elongation are obtained compared with those of normal rotor as well as rotor-jet spun yarns with 30Z, 60Z, and 90S air-jet nozzle types. However, the rotor-jet spun yarn irregularity produced with 90Z air-jet nozzle is almost identical to normal rotor-spun yarn. It is also shown that the rotor-jet spun yarn hairiness properties which were produced with a 90Z air-jet nozzle at air pressure values of 0.2, 0.5 and 1 bar is almost similar to normal rotor-spun yarn while the lowest yarn hairiness is achieved at air pressure value of 0.8 bar. The experimental results of this paper suggest that the newly developed rotor-jet spun yarn is superior to normal rotor-spun yarn from the point of view of yarn tensile, abrasion resistance, twist, and partially hairiness properties.