Richcel纤维转杯纱的工艺特征及纺纱性能分析

介绍Richcel纤维的基本技术性能,对Richcel纤维转杯纺纱工艺特征和纺纱性能进行了分析,并通过Richcel纤维与棉混纺,确立了Richcel纤维与棉纤维混纺转杯纱的工艺流程和主要工艺参数,使设计的Rich-cel纤维转杯纱达到了较理想的质量要求.为规模生产Richcel纤维转杯纱积累了经验.     

棉条制备等因素对转杯积杂及成纱质量的影响

通过对棉条制备、分梳辊速度及锯齿工作角度、纺纱杯速度与转杯纺工艺过程及成纱质量的分析及实验，得出了纺杯积杂、纤维损伤、纤维伸直度及成纱质量与诸因素的关系，并进一讨论了所得结果及产生原因。     

转杯纺纯棉竹节纱的工艺探讨

通过在BD200SN转杯纺纱机上加装伺服驱动自控系统,控制纤维喂入量来改变牵伸倍数的方式实现纺制转杯纺纯棉竹节纱.通过工艺实验,分析了纤维性能、纺纱工艺等因素对转杯纺纯棉竹节纱质量的影响,探讨了生产转杯纺纯棉竹节纱的工艺措施,纺制了符合质量要求的转杯纯棉竹节纱.     

转杯纺自由纱段形态对其捻度分布的影晌

通过对自由纱段的运动及受力分析,对自由纱段形态以及纺纱工艺参数对自由纱段捻度分布的影响进行了研究.研究表明因自由纱段在杯内成弯曲形状,从而使得自由纱段捻度自假捻盘入口处向剥离点处不断减少,直至剥离点处纱条捻度甚至降到只有设计捻度的40%～80%.为了保证凝聚槽内一定的捻度传递长度,则须适当提高设计捻度,这就揭示了转杯纱设计捻度高于环锭纱的一个主要原因.高速细支时的剥离点纱条捻度相对于低速粗支而言要高,说明只要一些纺纱工艺参数如转杯直径、转杯速度、假捻盘规格等配合得当,转杯纺也可高速稳定地纺制细支纱.     

转杯纺27.8tex Tencel针织纱工艺探讨

Tencel是一种全新的纤维素纤维．转杯纺Tencel针织纱条干好、棉结和粗、细结少，有利于突出其针织产品的风格特征．分析了在转杯纺设备上纺制27．8tex Tencel针织纱的工艺要点及降低断头率的措施．给出了各工序的主要纺纱工艺参数．并与环锭纺27．8tex Tencel针织纱作了质量对比，结果表明：除了强力稍低外，其它质量指标均较相同号数的环锭纱好。     

低捻转杯纺纱实验与理论分析--提高低捻转杯纱强力探索

研究在转杯纺加捻区中加装阻扭件,然后选用相同的棉条纺制不同捻系数的转杯纱(加装阻扭件和不加装阻扭件)和环锭纱,并测试其成纱的强伸性能、表面形态和扭转性能.测试结果表明,加装阻扭件的转杯纱可以适当改善转杯纺的加捻效果,进而适当提高了转杯纱的成纱强力.     

麻赛尔/棉转杯纺纱工艺研究

以捻系数、分梳辊速度、转杯速度为试验因子,采用单因子实验和二次通用旋转组合设计法,研究麻赛尔/棉混纺纱线性能与工艺参数之间的关系,找出最佳工艺参数;并用最佳工艺参数纺制不同混纺比的麻赛尔/棉混纺纱,比较不同混纺比对纱线性能的影响.结果表明：随着捻系数、分梳辊速度、转杯速度的增加,成纱的断裂强力均呈现出先增加后下降的变化规律;随着麻赛尔纤维含量的增加,混纺纱线的断裂强力逐渐下降.     

转杯纺自由纱段形态对其捻度分布的影响

通过对自由纱段的运动及受力分析，对自由纱段形态以及纺纱工艺参数对自由纱段捻度分布的影响进行了研究。研究表明：因自由纱段在杯内成弯曲形状，从而使得自由纱段捻度自假捻盘入口处向剥离点处不断减少，真至剥离点处纱条捻度甚至降到只有设计捻度的40%-80%。为了保证凝聚槽内一定的捻度传递长度，则须适当提高设计捻度，这就揭示了转杯纱设计捻度高于环锭纱的一个主要原因。高速细支时的剥离点纱条捻度相对于低速粗支而言要高，说明只要一些纺纱工艺参数如转杯直径、转杯速度、假捻盘规格等配合得当，转杯纺也可高速稳定地纺制细支纱。     

转杯纺纺制竹节纱的研制

分析了转杯纺纺制竹节纱的三种主要方案,并对其适用性进行了相应的比较,通过实际试纺16s竹节纱阐述了转杯纺纺制竹节纺的工艺流程、AUTOCORO-288转杯纺纱机纺制竹节纱的机构改造及参数设定情况.     

转杯纺棉氨复合纱工艺及其成纱性能研究——氨纶丝牵伸倍数对成纱性能的影响

介绍了转杯纺棉氨复合纱的纺纱原理，并在经过改装的转杯纺纱机上，选用两种规格的氨纶丝，通过调整氨纶丝的牵伸倍数纺制不同外观和性能的转杯纺棉氨复合纱。经纱线外观和性能的测试分析，表明氨纶丝牵伸倍数对转杯纺棉氨复合纱的外观和性能有一定的影响。     

Study on the Rotor Spinning Processing of Spun Silk/CashmereBlended Yarn

This paper studies roto spinning blended yarn producedof spun silk and cashmere. Nine samples were spun, from threedifferent opening rollers and different navels.According to theUster test results of yarn quality prioerties, optimum selection isdane by using analysis method of combining fuzzy decision-makingand fuzzy pattern classification.Expermental plan is designedbased on universal rotated experitmental design, and the method ofconfined optimization is used to optimize the speed of openingtaller, the speed of rotor and twist factor, according to the resultsof yarn quality test by Uster.     

Study of Rotor Spun Basofil/Cotton Blended Yarn Quality Characteristics during Optimisation of Processing Parameters

Yarn quality characteristics are affected by processing parameters. A 36 tex rotor spun yarn of 50/50 Basofil/ cotton （B/C） blended yarn was spun, and the spinning process optimised for rotor speed, opening roller speed and twist factor. Selected yarn characteristics were studied during the optimization process. During the optimizations process yarn elongation and hairiness reduced with increase in rotor speed. Tenacity increased with increase of rotor speed. The increase in TF caused tenacity and CV of count to increase up to a peak and then started to decrease with further increase of TF.While TF caused an increase in yarn hairiness, elongation decreased to a minimum level and then started to increase with further increase of TF. CV of count and hairiness increased with increase in opening roller speed, but tenacity and elongation decreased with increase in opening roller speed. The optimization process yielded the optimum levels for rotor speed, opening roller speed and twist factor （TF） as 45,000 rpm, 6,500 rpm and 450 respectively. As per uster Standards the optimum yam showed good results for CV of count, CV of tenacity and thin places/km.     

Relationship between Abrasiveness and Structure of Rotor and Ring Yarns

The friction and abrasion characters of yarn play veryimportant roles in the downstream processing and theend-use of products.With the development of rotoryarn and its application in the knitted products,theproblem of abrasion on the machine components causedby the processed rotor yarn has been paid more andmore attentions.This paper deals with the factors effectthe abrasiveness of rotor yarn and the comparison ofabrasive character between rotor yarn and ring yarn.     

降低单强变异系数 提高转杯纱质量的工艺探讨

单强变异系数是转杯纱评等的一项重要指标,可以通过调整一些工艺参数来降低转杯纱单强变异系数,从而提高转杯纱质量。     

THE PRACTICE OF ROTOR SPINNING IN PRODUCING SILK NOIL YARN AND THE DEVELOPMENT IN WOVEN FABRICS AND KNITTED GOODS

At present, we have succeeded in producing silk noil yarn by rotor spinning, and obtained good economic benefits. In this paper, through combining with the recent producing practice, systematically discussing and analysing the technology in the process of producing silk noil yarn by rotor spinning, we develop the new technology which is suited to produce silk noil yarn by rotor spinning, and address several noticable problems. The conclusions have been put into practice and proved to be effective and reliable. It can be consulted by the textile mills.     

气流纺开清棉工艺初步探讨

为适应气流纺所使用的低级原棉紧缺的状况,减少纺纱成本,从气流纺配棉和工艺参数调整方面入手,对气流纺开清棉工艺作了分析、改进,更好地实现了利用气流纺设备纺中号、粗号纱,取得了良好经济效益。     

转杯纱缠绕纤维对成纱强力的影响

本文提出用缠绕纤维角度分布、松紧度、稀密度、重量百分率等,作为缠绕纤维结构模式的特征量;并通过对不同工艺参数生产的转杯纱,进行缠绕纤维和成纱强力的测试与分析。最后得出不同工艺参数与缠绕纤维结构模式特征量的关系,及其对成纱强力的影响具有明显的规律性。