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简述了四罗拉网格圈型紧密纺系统的优点,并采用正交试验方法对影响四罗拉紧密纺精梳棉纱的4个关键工艺参数——吸风负压、隔距块、网格圈目数、前胶辊加压量进行了优化设计,得到了CJ7.3tex纱的合理工艺配置。 相似文献
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紧密纺或集聚纺技术被广泛地认为是可衡量短纤纱质量的新标杆。研究了集聚压力、罗拉隔距和前皮辊肖氏硬度三因素三水平对牵伸的影响。 相似文献
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紧密纺纱生产的工艺研究与实践 总被引:5,自引:2,他引:3
为提高紧密纺纱质量,对紧密纺生产过程中原料选配、半成品质量、工艺配置及细纱有关工艺参数进行了工艺试验研究,并对多个品种紧密纺纱与普通环锭纺成纱质量进行了对比,指出:紧密纺比环锭纺具有明显的技术和质量优势,通过正确选配原料、控制精梳条短绒含量、合理选择粗纱定量和捻系数、优选网格圈目数、须条喂入位置以及细纱罗拉隔距、钳口规格、粗纱捻系数等工艺参数,可使紧密纺质量得到稳定和提高. 相似文献
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介绍了紧密纺基本原理,以正交试验法对影响高支棉纱的四个关键工艺(网格圈目数、吸风负压、前胶辊加压、隔距块)进行优化设计,着重分析了紧密纺网格圈目数对棉纱质量的影响。试验方案设计出了纺制7.3tex紧密纺棉纱最合理的配置。 相似文献
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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. 相似文献
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紧密纺纱技术与毛羽问题 总被引:19,自引:11,他引:19
针对传统纺纱前钳口处加捻三角区形成毛羽的基本规律,在该钳口出口处采取消除加捻三角区的纺纱方法即紧密纺纱方法,将纱线表面长毛羽在须条离开握持钳口时就贴向纱干,有效降低了纱线毛羽。采用自行研制的紧密纺装置对棉和毛进行纺纱试验,结果表明紧密纺对降低纱线毛羽效果明显。 相似文献
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为深入分析纺纱技术对棉纱性能的影响,选择集聚纺和普通环锭纺两种纺纱技术进行研究。在KTTM环锭纺纱机上,根据普通环锭纺纱和集聚纺纱的技术要求,采用基本相同的纺纱前准备,生产普通环锭纱和集聚纱。为生产高品质纱线,在集聚纺纱机前罗拉输出的位置放置了一个集聚装置。试验测试、记录了每种纱线的物理性能,以比较普通环锭纱和集聚纱的性能,并利用乌斯特张力测试仪和乌斯特条干均匀度仪分析比较两种纺纱技术所生产的纱线。结果显示:由1.20型集聚装置生产的纱线具有较好的均匀性;通过统计分析可知,采用1.14型和1.20型集聚装置生产的集聚纱与普通环锭纱的拉伸性能具有显著区别,采用不同的集聚装置生产的纱线也明显不同。 相似文献
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青泽紧密纺纱机技术特点及应用实践 总被引:1,自引:0,他引:1
探讨德国青泽700型紧密纺纱装置以及相关工艺参数配置.介绍了紧密纺纱机的结构与性能特点.通过合理配置前纺各工序纺纱工艺及采取有关技术措施,并对紧密纺纱机集聚负压和粗纱横动等工艺参数进行了试验与优选,结果使CJ 7.3 tex紧密纺纱质量达到了较好的水平. 相似文献
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磁铁机械式紧密纺纱原理及应用分析 总被引:1,自引:0,他引:1
探讨磁铁机械式紧密纺纱装置的纺纱原理及成纱质量情况.分析了ROCOS磁铁机械式紧密纺纱装置的结构、纺纱原理和磁铁机械式紧密纺与负压气流式紧密纺集聚原理的异同点,对磁铁机械式紧密纱与普通环锭纱的质量进行了测试对比,并对磁铁机械式紧密纺的经济性进行了分析.结果表明,磁铁机械式紧密纱相对普通环锭纱强力略有提高,强力不匀减小,成纱条干水平改善,1 mm~2 mm毛羽大量增加,3 mm以上毛羽明显减少.磁铁机械式紧密纺装置改造成本低,维护简单,不增加动力消耗,经济性较好. 相似文献
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为了了解紧密纺普梳纱与传统环锭纺精梳纱成纱性能的差异,在相同配棉、相同开清和梳棉工艺、同一粗纱定量条件下,利用DTM129型细纱机纺制了CJ 14.5 tex精梳纱,并加装Suessen公司Elite紧密纺装置纺制了C 14.5 tex普梳纱.通过测试对比两品种的成纱性能,结果表明:C 14.5 tex紧密纺普梳纱成纱细节、粗节和棉结指标较CJ 14.5 tex传统环锭纱差一些,但强伸性能指标较好,毛羽较少.生产中可通过加大梳棉落棉率等措施改善紧密纺普梳纱粗细节.认为紧密纺采用普梳工艺流程,相对于传统环锭纺精梳流程生产效率提高,在满足成纱质量要求的情况下紧密纺采用普梳纺纱工艺可降低生产成本. 相似文献
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AbstractIn the ring-spinning process, the area between the front roller nip and twisting point is spinning triangle, and its geometry influences the fiber tension distribution in the spinning triangle directly and determines the properties of spun yarns. Therefore, in the paper, one kind of mechanical false-twisting device was introduced on the ring spinning, which can affect the twist propagation and change the spinning triangle geometry actively. First, the modification of the false-twisting device on the DTM129 ring-spinning frame was introduced. Taking the medium cotton yarn spinning as an example, corresponding ring yarn, Sirospun yarn, compact yarn were spun on the modified spinning frame under different designed twist factors, and the applicability of the false-twisting device on different spinning method was discussed. It is shown that comparing with the common yarn, the Hairiness and Strength of the modified yarns are all improved, and the effect of false-twisting device on yarn qualities is more effective for the low-twist yarn. Comparing with the ring spinning, the improvement degree of the modified compact spinning is a little smaller. Then, the long-staple cotton ring yarn, polyester and medium cotton blend ring yarn, polyester ring yarn were spun on the modified spinning frame under different designed twist factors, and the applicability of the false-twisting device on different fibers was discussed. It is shown that the influence of the false-twisting device on the long-staple cotton yarn and polyester yarn is little. That is, the false-twisting device given in the paper would be more applicable on the short fiber spinning under the low designed twist factor. 相似文献