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首页> 外文期刊>The Journal of the Textile Institute >Influence of spinning parameters on milkweed/cotton DREF-3 yarn properties
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Influence of spinning parameters on milkweed/cotton DREF-3 yarn properties

机译：纺丝参数对乳草/棉DREF-3纱线性能的影响

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摘要

In this study, Pergularia milkweed fibre (70%), cotton fibre (30%) core and 100% cotton fibre sheath DREF-3 core yarns of 74 tex were produced using different spinning parameters in order to understand their effect on yarn properties. Box-Behnken design was used for the optimization of core ratio, drum speed and suction pressure, and to evaluate the effects and interactions of the process variables on the yarn properties at a constant opening roller speed of 12,000 rpm and production speed of 100m/min. The effects of the core/sheath ratio on all the yarn properties are significant. With an increase in the core/sheath ratio, yarn tenacity and elongation decrease due to insufficient wrapper fibres in the yarn and yarn unevenness; imperfection increases due to higher feed rate and draft at higher core ratio. The yarn hairiness increases at higher core ratio due to higher number of short fibres in milkweed and lesser sheath fibres to cover the core fibres effectively. An increase in the spinning drum speed damages fibre in the sheath and increases the number of hooks at the end of fibres, as a result of which the core yarn tenacity decreases at higher drum speed. At a higher air suction pressure, yam tenacity and the elongation at break increases. The drum speed and suction pressure have no significant effect on yarn unevenness and imperfections. The yarn hairiness decreases slightly with increase in drum speed and suction pressure but is insignificant.
机译：在这项研究中，使用不同的纺丝参数生产了74 tex的Pergularia乳草纤维（70％），棉纤维（30％）芯和100％棉纤维皮DREF-3芯纱，以了解它们对纱线性能的影响。 Box-Behnken设计用于优化芯比，转鼓速度和吸气压力，并在恒定的开罗辊速度12,000 rpm和生产速度100m / min的情况下评估工艺变量对纱线性能的影响和相互作用。芯/鞘比对所有纱线性能的影响是显着的。随着芯/鞘比的增加，由于纱线中的包裹纤维不足和纱线不均匀性，纱线的韧性和伸长率降低。由于较高的进给速度和较高的芯比下的牵伸，不完美度增加。由于马利筋中短纤维的数量较多，而皮层纤维较少，有效地覆盖了芯纤维，所以在较高的芯比率下，毛羽增加。纺丝滚筒速度的增加会损坏皮套中的纤维，并增加纤维末端的钩子的数量，结果，在较高的滚筒速度下芯纱的韧性会降低。在较高的吸气压力下，纱的强度和断裂伸长率增加。滚筒速度和吸气压力对纱线不均匀度和瑕疵影响不大。纱线的毛羽随鼓速度和吸气压力的增加而略有降低，但微不足道。

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