<section data-role="outer" class="article135" label="edit by 135editor"><section data-role="paragraph" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-size: 17px; letter-spacing: 0.544px; text-align: justify; visibility: visible; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" class=""><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; text-align: left; visibility: visible; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(36, 64, 97); visibility: visible; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; visibility: visible; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; caret-color: red; font-size: 20px; visibility: visible; overflow-wrap: break-word !important;">混纺纱&nbsp;</span></strong></span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(63, 63, 63); caret-color: red; visibility: visible; font-size: 15px; overflow-wrap: break-word !important;">是指两种以上不同品种或不同特性的纤维混纺而成的纱线。通过混纺可以发挥不同纤维的优良性能，取长补短，增加品种，提高纺织品的服用性能。混纺纱的性质，当然取决于各纤维组分的性质，同时还取决于混纺比。混纺纱中各纤维组分会影响加捻三角区中纤维内外转移的规律，从而产生不同纤维组分的径向分布不匀的趋势。这个问题至关重要，以织物的手感、外观、风格和耐用性能而论，位于混纺纱表层的纤维起着决定性的作用，,例如，当较多的细而柔软的纤维分布在表层时，织物手感必然柔和细腻；当较多粗而刚硬的纤维分布在表层时，织物手感必然粗糙刚硬；如果较多强度高、耐磨性好的纤维分布在表层，织物必然耐穿耐用。</span><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; visibility: visible; overflow-wrap: break-word !important;"></p></section><section data-role="paragraph" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-size: 17px; letter-spacing: 0.544px; text-align: justify; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" class=""><section data-role="title" data-tools="135编辑器" data-id="122630" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;" class="_135editor"><section style="margin: 10px auto; padding: 0px; outline: 0px; max-width: 100%; display: flex; justify-content: center; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; letter-spacing: 1.5px; color: rgb(36, 64, 97); text-align: center; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"></section><section style="margin: 5px 0px; padding: 0px; outline: 0px; max-width: 100%; display: flex; justify-content: center; align-items: center; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; flex-shrink: 0; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; width: 10px; height: 10px; border-radius: 100%; overflow: hidden; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"></section></section><section style="margin: 0px 5px; padding: 4px 15px; outline: 0px; max-width: 100%; font-size: 16px; color: rgb(255, 255, 255); text-align: center; background-color: rgb(36, 64, 97); overflow-wrap: break-word !important;"><strong data-brushtype="text" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;">影响混纺纱中纤维径向分布的因素</strong></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; flex-shrink: 0; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; width: 10px; height: 10px; border-radius: 100%; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"></section></section></section></section></section></section><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(63, 63, 63); font-size: 15px; overflow-wrap: break-word !important;">加捻三角区中，纤维内外转移必须克服周围纤维的阻力，而周围纤维的阻力和纤维的向心压力都与纤维的物理性质有关。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p></section><section data-role="paragraph" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-size: 17px; letter-spacing: 0.544px; text-align: justify; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" class=""><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(54, 96, 146); overflow-wrap: break-word !important;">(1) 纤维长度</span></strong></span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(63, 63, 63); font-size: 15px; overflow-wrap: break-word !important;">长纤维趋向于分布在纱的内层，短纤维趋向于分布在纱的外层。这是因为长纤维易同时被前罗拉和加捻三角区下端的成纱处所握持，在纺纱张力作用下，受到的力较大，所以向内转移。短纤维则不易同时为两端握持，在纺纱张力的作用下，向心压力较小，所以不易向内转移。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(54, 96, 146); font-size: 15px; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;">(2) 纤维细度&nbsp;</strong></span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(63, 63, 63); font-size: 15px; overflow-wrap: break-word !important;">细纤维的抗弯刚度小，容易弯曲，在向心压力的作用下，易向内转移而分布在纱的内层；粗纤维则相反，易分布在纱的外层。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(54, 96, 146); overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">(3) 纤维截面形状</span></strong></span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(63, 63, 63); font-size: 15px; overflow-wrap: break-word !important;">异形截面纤维的抗弯刚度大，不易弯曲，在向心压力作用下，不易向内转移而分布在纱的外层；圆形截面纤维则相反，易向内转移而分布在纱的内层。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(54, 96, 146); font-size: 15px; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;">(4) 初始模量</strong></span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; caret-color: red; color: rgb(63, 63, 63); font-size: 15px; overflow-wrap: break-word !important;">初始模量高的纤维趋向于纱的内层，初始模量低的纤维趋向于纱的外层。因为初始模量高的纤维，在同样伸长的情况下，纺纱张力大，向心压力也大，易向内转移。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; caret-color: red; color: rgb(54, 96, 146); overflow-wrap: break-word !important;">(5) 纤维卷曲和表面状态&nbsp;</span></strong></span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; caret-color: red; color: rgb(63, 63, 63); font-size: 15px; overflow-wrap: break-word !important;">纤维的卷曲和表面状态会影响纤维间的转移阻力，因此，摩擦系数大的纤维不易向内转移而分布在纱的外层。<br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"></span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p><p style="margin-right: 10px; margin-bottom: 0px; margin-left: 10px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(63, 63, 63); font-size: 15px; overflow-wrap: break-word !important;">性质不同的纤维，其径向分布的规律是混纺纱结构的一个重要课题，如果恰当地运用这些规律，可以得到较理想的产品性能，设计出特殊的纱线。例如涤/棉混纺纱中，选用粗而短的涤纶，能使涤纶较多地分布在纱的外层，制成的织物耐磨性就好，手感也较滑挺；在锦纶混纺织物中，选用比待混纺纤维粗而短的锦纶，可使锦纶较多地分布在纱的外层，充分发挥锦纶耐磨性优良的特点，使织物耐磨；又如毛/黏混纺纱，选用比羊毛纤维细而长的黏胶纤维，既有利于成纱强力和条干，又因为羊毛分布在外层而赋予织物优良的毛型感。</span></p></section></section>