摘要
为定量预测实际生产中赛络菲尔(Sirofil)包缠纱的性能,分析了其成纱加捻过程和特点。根据加捻三角区中的几何关系,推导出三角区纱线质心相对锭子偏移距离与纱线捻回角的关系,并得出半个捻回纱线质量的计算公式;对加捻三角区进行受力分析得到力矩平衡方程,解释了Z捻纱捻度由下向上的传递规律,分析了长丝与短纤须条的相对位置对Sirofil包缠纱强力的影响;最后对模型求解并进行实验验证。模型计算和实验结果表明:隔距变大纱线质心偏移距离变大,须条捻回角减小;汇聚点之上单纱捻向与汇聚点之下传递捻向相同,且短纤须条位于长丝左侧时所加的捻度较之在右侧时多。该模型和实验为Sirofil包缠纱性能和结构的分析提供了参考。
Objective Compared with the traditional ring spinning,Sirofil two-component yarn possesses higher strength and smoother surface.In order to optimize the performance of Sirofil wrapped yarn,including hairiness,evenness and strength,the influence of the relative position and spacing distance of filament and staple strand on the yarn properties was explored.Additionally,the combination of theoretical modeling and experiment were employed to quantitatively analyse and predict the performance of ring spun Sirofil wrapped yarn in practical manufacturing.Method To analyze the twisting process and characteristics of the Sirofil wrapped yarn,the numerical analysis of the twisting triangle were carried out,and the model is established based on the geometric relationship of filament and staple strand in the twisting triangle and the force analysis of the twisting triangle.The hairiness,evenness and strength of sirofil wrapped yarn were tested by experiments,the results of which were used to validate the model.Results The relationship between the offset distance of the centroid of the Sirofil wrapped yarn relative to the spindle axis and the yarn twisting angle in the triangle area was deduced and the equation for calculating the quality of half twisted yarn was established.In accordance with the force analysis of the twisting triangle,the moment balance equation was attained and the twist transfer rule of Z-twisting yarn was explained.The analysis results showed that with the increase of the distance,the offset distance of the centroid of the twisting triangle relative to the spindle axis was increased,and the twist angle of the staple strand was decreased(Tab.3).Therefore,the slippage length of the staple fibers became longer and the proportion of the strength of the short fiber bundles in the axial direction of the yarn got larger,making greater contribution of the fiber to the yarn strength leading to improved yarn strength.Torque contributed by filament and staple strand shows that the twist angle of the filament was sm
作者
刘帅
郭晨宇
陈鹤文
杨瑞华
LIU Shuai;GUO Chenyu;CHEN Hewen;YANG Ruihua(Key Laboratory of Eco-Textiles(Jiangnan University),Ministry of Education,Wuxi,Jiangsu 214122,China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2023年第4期63-69,共7页
Journal of Textile Research
基金
国家自然科学基金面上项目(52273034)
江苏省自然科学基金面上项目(BK20181350)。
关键词
赛络菲尔包缠纱
环锭纺
纱线结构
加捻三角区
捻回角
Sirofil wrapped yarn
ring spinning
yarn structure
twisting triangle area
twist angle
