<p><br></p><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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">短纤维是影响棉纺质量的关键因素之一，在相同工艺条件下，短纤维的含量越少，其成纱断裂强度越高，成纱质量就越好。</span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"></span></p><section class="_135editor" data-role="title" data-tools="135编辑器" data-id="128746" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 10px auto; padding: 0px; display: flex; justify-content: center; overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 0px 0px -6px; padding: 0px; display: flex; justify-content: center; overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 0px; padding: 0px; width: 35px; overflow-wrap: break-word !important; outline: none 0px !important;"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 65 29" style="display: block;" xml:space="default"><g><g><path style="fill:#2c92f2;" d="M60,8.56H56.44a6.43,6.43,0,0,1-1.95-1.31A8.9,8.9,0,0,1,53.57,6C53,2.59,49.65,0,46,0H18.4a7.67,7.67,0,0,0-7.5,5.72A8.13,8.13,0,0,1,9.85,7.25,6.43,6.43,0,0,1,7.9,8.56H5a5,5,0,0,0-5,5V28.34H65V13.56A5,5,0,0,0,60,8.56Z"></path><path style="fill:#47a6ff;" d="M60,10.53H56.44a6.52,6.52,0,0,1-1.95-1.3,8.39,8.39,0,0,1-.92-1.29h0C53,4.58,49.66,2,46,2H18.4a7.65,7.65,0,0,0-7.5,5.73A8.39,8.39,0,0,1,9.85,9.23a6.4,6.4,0,0,1-1.95,1.3H5a5,5,0,0,0-5,5V29H65V15.53A5,5,0,0,0,60,10.53Z"></path><circle style="fill:#fff;" cx="32.85" cy="9.89" r="2.62"></circle></g></g></svg></section></section><section style="max-inline-size: 100%; margin: 0px; padding: 4px; border-radius: 5px; background-color: rgb(253, 209, 73); overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 0px; padding: 4px 15px; background-color: rgb(255, 255, 255); border-radius: 5px; overflow-wrap: break-word !important; outline: none 0px !important;"><strong class="135brush" data-brushtype="text" style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">短纤维的产生</strong></section></section></section></section></section><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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"></span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">短纤维是棉纤维中长度短于主体纤维长度一定界限的纤维，常用短纤维质量占纤维总质量的百分率表示，称为短绒率。短纤维产生的原因主要有两种：第一种是纤维本身生长时产生，配棉时原料中含有较多的短绒，特别是长度较短(12 mm以下) 的短绒；第二种是纤维在加工过程中的损伤，在清梳工序经过开松、打击和分梳产生的短绒。</span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">短纤维的长度：国外以乌斯特公司规定的纤维长度为10 mm为主，另外，英国和瑞士以平均长度以下纤维长度为短纤维；国内质量控制一般用纤维长度在12.7 mm和16 mm以下两种进行分析。不同长度的短纤维在纺纱流程中产生的影响有所不同，4 mm～5 mm的短纤维在纺纱过程中一般会损失掉；12 mm～15 mm的短纤维只能填充纱线以达到饱满的作用，对强力没有贡献；16 mm以上的纤维对纱线的内部和外部特征会产生正面的影响。</span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">短纤维在开清棉和梳棉过程中易形成大量的棉结，使得纤维品质降低，落棉和用棉成本增加；在精梳及并粗工序的加工过程中，短纤维不易控制，形成浮游纤维而影响纤维变速；在加捻过程中，短纤维易伸出纱体表面，形成毛羽而影响布面风格。</span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"></span></p><section class="_135editor" data-role="title" data-tools="135编辑器" data-id="128746" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 10px auto; padding: 0px; display: flex; justify-content: center; overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 0px 0px -6px; padding: 0px; display: flex; justify-content: center; overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 0px; padding: 0px; width: 35px; overflow-wrap: break-word !important; outline: none 0px !important;"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 65 29" style="display: block;" xml:space="default"><g><g><path style="fill:#2c92f2;" d="M60,8.56H56.44a6.43,6.43,0,0,1-1.95-1.31A8.9,8.9,0,0,1,53.57,6C53,2.59,49.65,0,46,0H18.4a7.67,7.67,0,0,0-7.5,5.72A8.13,8.13,0,0,1,9.85,7.25,6.43,6.43,0,0,1,7.9,8.56H5a5,5,0,0,0-5,5V28.34H65V13.56A5,5,0,0,0,60,8.56Z"></path><path style="fill:#47a6ff;" d="M60,10.53H56.44a6.52,6.52,0,0,1-1.95-1.3,8.39,8.39,0,0,1-.92-1.29h0C53,4.58,49.66,2,46,2H18.4a7.65,7.65,0,0,0-7.5,5.73A8.39,8.39,0,0,1,9.85,9.23a6.4,6.4,0,0,1-1.95,1.3H5a5,5,0,0,0-5,5V29H65V15.53A5,5,0,0,0,60,10.53Z"></path><circle style="fill:#fff;" cx="32.85" cy="9.89" r="2.62"></circle></g></g></svg></section></section><section style="max-inline-size: 100%; margin: 0px; padding: 4px; border-radius: 5px; background-color: rgb(253, 209, 73); overflow-wrap: break-word !important; outline: none 0px !important;"><section style="max-inline-size: 100%; margin: 0px; padding: 4px 15px; background-color: rgb(255, 255, 255); border-radius: 5px; overflow-wrap: break-word !important; outline: none 0px !important;"><strong class="135brush" data-brushtype="text" style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">对成纱质量的影响</strong></section></section></section></section></section><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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"></span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">短纤维对成纱质量的影响，是由于在纺纱过程中，短纤维难以彻底清除和控制。虽然在清花、梳棉工序中，部分短纤维会随同杂质一起落下，但仍有相当一部分短纤维成为生条中的一部分，在牵伸过程中，不被罗拉所握持，呈游离纤维，造成纱的粗节、细节，以至纱条干不均，造成纱线断头增加，纱线强力下降，单纱伸长率也随之下降，织造过程中断头增加，影响棉布的外观。</span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">在牵伸过程中，短纤维不易被牵伸机构控制而呈“浮游”状态，其不规则的运动将影响成纱常发性纱疵。有关资料显示，C 18.2 tex纱的原棉中，若12.7 mm以下短绒率每增加2%，则相应的成纱条干CV值就增长1%。细号纱的原棉中，若10 mm以下短绒率每增加2%，其成纱条干CV值则增加1%，同时常发性纱疵( 棉结、粗节及细节)也会有不同程度的增加。</span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">短纤维在生产过程中不易控制，经常处于浮游状态，出现飞花和边纤维造成粗节和细节纱疵，短绒率越高，偶发性纱疵增加愈明显。</span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">短绒率含量越高，成纱强力越低，强力不匀越高；短绒率越高，短纤维的横向抱合和纵向钩接能力差，承受拉力时容易断裂，影响纱线的强力。短绒率含量越高，成纱截面内纤维根数越多，头尾数越多，容易伸出纱线主体，造成纱线毛羽的可能性越大。同时络筒退绕过程中，在高速剧烈摩擦的作用下，会出现毛羽激增。因此，加强短纤维的控制，对提高纱线质量具有积极意义。</span></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>