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首页> 外文期刊>Textile Research Journal >Effect of Process and Machine Parameters on Changes in Tensile Properties of Threads during High-speed Industrial Sewing
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Effect of Process and Machine Parameters on Changes in Tensile Properties of Threads during High-speed Industrial Sewing

机译：工艺和机器参数对高速工业缝纫过程中线的拉伸性能变化的影响

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Abstract The dynamic, thermal, bending and abrasive loading of thread during sewing process has a negative influence on the properties of sewing threads. In this study, the individual and interactive effect of the number of fabric layers, stitch density and needle size on the loss in tenacity, breaking elongation and initial modulus of four types of thread has been studied using Box-Behnken design. Response surface regression equations of loss in tensile properties on the above parameters were developed. The predicted equations agreed well with the experimental data. Contrary to the general expectation, the loss in tenacity and breaking elongation was found to decrease initially or remain unchanged as the number of fabric layers increased. Initial modulus loss decreased with the increase in number of fabric layers for all threads. Except for cotton thread, stitch density did not show any significant influence on tenacity and breaking elongation loss. As the needle size increased, the loss in tenacity and breaking elongation increased for all polyester threads, whereas these properties remained unchanged for cotton thread. Analysis of variance was carried out to find out the contribution of parameters in loss in tensile properties. The number of fabric layers was found to have the highest contribution on tenacity and breaking elongation loss of cotton threads, whereas needle size contributed substantially to the loss in these properties of polyester threads.
机译：摘要缝纫过程中线的动态，热，弯曲和磨料负荷对缝纫线的性能有负面影响。在这项研究中，使用Box-Behnken设计研究了织物层数，针迹密度和针头尺寸对四种类型的线的强度损失，断裂伸长率和初始模量的个体和交互作用。建立了基于上述参数的拉伸性能损失的响应面回归方程。预测方程与实验数据吻合良好。与一般预期相反，随着织物层数的增加，韧度和断裂伸长率的损失开始减少或保持不变。初始模量损失随所有线的织物层数的增加而降低。除棉线外，线迹密度对韧度和断裂伸长率损失均无显着影响。随着针头尺寸的增加，所有聚酯线的强度损失和断裂伸长率均增加，而棉线的这些性能保持不变。进行方差分析以发现参数对拉伸性能损失的贡献。发现织物层的数量对棉线的韧性和断裂伸长率损失具有最大的贡献，而针的尺寸基本上对聚酯线的这些性能的损失做出了贡献。

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