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全部资讯   / 回潮率、含水率与成纱质量及纺纱工艺的关系

回潮率、含水率与成纱质量及纺纱工艺的关系

2014-08-11 11:57:31

<div><br></div><div><section class="_135editor" data-role="paragraph" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">  回潮率不仅影响原棉的真实重量和棉纤维的性能,而且对生产工艺和成品质量都有影响。原棉回潮卒过高,在储存过程中易于霉烂变质,在清棉、梳相等纺纱工艺过程中易扭结,增加疵点,除杂效率也低。原棉含水率过低,纤维强度低,容易被机械打断成短纤维,增加车间飞花,降低成纱强度。影响原棉水分多少的因素,除周围空气的温湿度外,主要是原棉的成熟度。成熟度高,水分少;成熬度低,水分多。低级棉成熟度差,水分一般较高。我国原棉的含水率一般在7%~11%,南方棉区的棉花含水率较高,北方棉区的棉花含水率较低。一般原棉含水率控制在7%~9%的范围较为适宜。棉花公定回潮率为8.5%;棉花回潮率最高限度为10.5%。</p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">  </p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p></section><section class="_135editor" data-role="paragraph" id="autoparagraph" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); overflow-wrap: break-word !important; outline: none 0px !important;"></p></section></div>

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