<br><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;">　　出于毛、丝、麻三种纤维的物理性能相差较大，混纺时纤维的相互抱合力较差，纱线条干均匀度、毛粒、毛羽量与同特数的全毛纱相比均很差。因此从纺纱角度看，首先要合理选定单纱、股线的捻系数、捻向，使纱线强力、耐磨性、弹性伸长三者均符合剑杆织机高速织造的要求，其次是提高纱线条干均匀度，减少毛粒、毛羽及粗细节的含量，保证织造顺利进行，成品呢面质量稳定。</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;">　　1．纱线捻系数、捻度与捻向</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;">　　单纱、股线的捻系数、捻度与捻向的选定，除了应根据产品风格、手感、强力等因素外，还应充分考虑这三种纤维混合以后的可纺性，以及对于剑杆织机高速织造的影响。该品种用毛、丝、麻三种纤维按照一定比例混纺，由于麻纤维手感一般较硬，抗扭性强，纺纱时不易捻合，绢丝较滑糯，抱合力也很差，而羊毛纤维手感则在它们两者之间，抱合力较好，所以纺纱难度很大。捻系数、捻回、捻向选用不恰当，纺纱、织造断头率高，成品风格手感也达不到设计要求。</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;">　　2．纺纱工艺</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;">　　在纺纱过程今，使条干均匀度差，易产生毛粒、毛羽的因素主要有：工艺参数选择不当，工艺部件和机械状态不良，操作不合理，加工过程中受到的各种意外张力引起的意外牵伸，温湿度变化较大，清洁工作做得术及时等。因此，纺纱过程必须针对单纱生产的要求加以改进。</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;">　　生产毛／丝／麻花呢时，通过试纺，调节有关参数，取得纺纱工艺参数。通常这种混纺纱的细节数都明显大于粗节数，由细节引起的断头次数相对较多，且大多是由纺纱过程中意外牵伸引起的。所以，减少意外张力有利于减少短片段不匀。为了减少意外牵伸，首先要确保各道出条与卷绕流畅。其次在出条和卷绕顺利的情况下，各道尽量减小进条与卷绕张力，因为须条到该工序时已被拉细，粗纱成形靠摩擦带动，往复卷绕实施，后道并合机会很少，如果在此工序中由于张力过大、工艺部件磨损、皮圈及机台清洁工作没做好等引起意外的张力牵伸，在细纱机上极易导致细纱产生细节。同时还要求做好清洁保养工作，严格执行操作法.减少由操作引起的意外张力牵伸。各机台部件要定期定时清洁保养，检查检修，尤其是针板，皮辊皮圈，压辊及须条和纱线通道，保证机械运转状态优良，减少纺纱过程中对纤维的损伤，使须条表面光洁、圆整、毛羽少。</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;">　　为了减少纱线上的毛羽，混毛加油量应控制在1.2％左右，粗纱回潮率15％～18％，细纱湿度60％-70％，混毛加油后上头针储备时间为24h以上，粗纱储备时间48h以上。头针自调匀后的不匀率控制在0.8％以下，质量偏差1％以内，粗纱质量不匀率不超过0.8％，尽量减少长片段不匀的产生与特数偏差，提高纱线条干均匀度。采用国产粗纱、细纱与进口后纺相结合，以提高成品毛纱的质量，减少筒纱单位质量中的接头率。保证毛纱蒸透、蒸匀，充分定形，以利于缩短手纱储存期 同复纤维疲劳。</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>