捻度对锦纶/棉混纺纱质量指标的影响  

Influence of twist on quality indexes of polyamide/cotton blended yarns

作　　者：于学智[1] 张明光[1] 曹继鹏[1] 张月 王晓燕 YU Xuezhi;ZHANG Mingguang;CAO Jipeng;ZHANG Yue;WANG Xiaoyan(School of Fashion and Textile,Liaodong University,Dandong,Liaoning 118003,China)

机构地区：[1]辽东学院服装与纺织学院,辽宁丹东118003

出　　处：《纺织学报》2023年第1期106-111,共6页Journal of Textile Research

基　　金：辽宁省教育科研项目(LJKMZ20221749,LNSJYT202017);辽宁省自然科学基金项目(2019-MS-148)。

摘　　要：为进一步提升锦纶/棉混纺纱质量,针对捻度与锦纶/棉混纺纱质量指标的关系问题进行了分析。在其它工艺相同的条件下调整细纱工序捻度的设置,纺制了16种锦纶/棉混纺纱,对其质量指标进行测试,并通过SPSS软件对捻度与混纺纱质量指标之间的关系进行拟合与回归分析,建立了混纺纱质量指标随捻度变化的回归预测模型。结果表明,捻度与锦纶/棉混纺纱强伸性能、粗细节和毛羽指标显著相关,测试组数据与预测值间残差绝对值均在3倍残差标准差以内,验证了模型的有效性。捻度大小直接影响锦纶/棉混纺纱的强伸性能、粗细节和毛羽指标,预测模型反映了捻度对混纺纱强伸性能、粗细节和毛羽指标影响的数量相关关系,为锦纶/棉混纺纱生产中捻度设计和快速调整提供了参考依据。Objective Polyamide/cotton blended yarns not only possess outstanding wear resistance,elasticity,fatigue resistance and impact properties of polyamide fiber,but also moisture absorption and permeability,soft and warm characteristics of cotton fiber.In order to further improve its quality,the relationship between twist and each quality index of a polyamide/cotton blended yarn was analyzed to predict the blended yarn quality based on the yarn twist.The study provides theoretical basis for twist design and rapid adjustment in spinning production.Method The polyamide/cotton blended yarns with linear density of 27.9 tex and blending ratio of 50:50 was spun from polyamide 66 with linear density of 1.67 dtex and length of 38 mm and Xinjiang cotton fiber 229 with a linear density of 1.64 dtex by conventional ring spinning.16 polyamide/cotton blended yarns were spun on FA506 spinning frame by changing the twist gear and setting 16 twist levels.In the spinning process,the sliver blending was adopted,where polyamide sliver and cotton sliver were produced by blowing-carding process respectively,three blending,roving and spinning.Results The relationship between twist and quality indexes of polyamide/cotton blended yarns was analyzed by the SPSS software.Twist was significantly correlated with 6 quality indexes,i.e.,breaking strength,breaking strength CV,breaking elongation,thick places,thin places and hairiness.However,it has little correlation with elongation CV,evenness and neps index of blended yarn(Tab.2).By using the SPSS software,the scatter plot of twist and the above-mentioned six quality indexes was drawn,and the regression curve was plotted.The regression curve shows that the six quality indexes of polyamide/cotton blended yarn do not show linear distribution against twist variation trend(Fig.1,Fig.2).Therefore,the best fitting equation between twist and these six quality indexes was obtained by the curve estimation and fitting analysis method provided by the SPSS software(Tab.3).The breaking strength of polyamide/

关 键 词：捻度 锦纶/棉 混纺纱 纺纱质量 质量指标 回归分析 预测模型 

分 类 号：TS114.5[轻工技术与工程—纺织材料与纺织品设计]