<section data-role="outer" class="article135" label="edit by 135editor"><section data-id="us158593" style="margin: 0px 0px 24px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; border-width: 0px; border-style: none; border-color: currentcolor; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" class="_135editor"><section label="Powered by 135editor.com" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; visibility: visible; overflow-wrap: break-word !important;"><p style="margin-bottom: 25px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; visibility: visible; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; visibility: visible; overflow-wrap: break-word !important;">加捻是使纱条的两个截面产生相对回转，这时纱条中原来平行于纱轴的纤维倾斜成螺旋线。对短纤维来说，加捻主要是为了提高纱线的强度。而长丝的加捻既可以提高纱线的强度，又可产生某种效应。纱线加捻的多少以及纱线在织物中的捻向与捻度的配合，对产品的外观和性能都有较大的影响。</span><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; visibility: visible; overflow-wrap: break-word !important;"></p></section></section><p style="margin-bottom: 25px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">加捻性质的指标有：表示加捻程度的捻度、捻系数及表示加捻方向的捻向。</p><p style="margin-bottom: 25px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(79, 129, 189); visibility: visible; overflow-wrap: break-word !important;">捻度：纱线加捻角扭转一圈为一个捻回。纱线单位长度内的捻回数称捻度。</span>我国棉型纱线采用特数制捻度，即用10 cm纱线长度内的捻回数表示；精梳毛纱和化纤长丝则采用公制支数制捻度，即以每米内的捻回数表示；此外，还有以每英寸内捻回数表示的英制支数制捻度。</p><p style="margin-bottom: 25px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(79, 129, 189); visibility: visible; overflow-wrap: break-word !important;">捻系数：捻度不能用来比较不同粗细纱线的加捻程度，因为相同捻度，粗的纱条其纤维的倾斜程度大于细的纱条。</span>在实际生产中，常用捻系数来表示纱线的加捻程度。捻系数是结合线密度表示纱线加捻程度的相对数值，可用于比较不同粗细纱线的加捻程度。捻系数可根据纱线的捻度和纱线的线密度计算而得到的。</p><p style="margin-bottom: 25px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(79, 129, 189); visibility: visible; overflow-wrap: break-word !important;">捻向：捻向是指纱线加捻后，单纱中的纤维或股线中单纱呈现的倾斜方向。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(79, 129, 189); visibility: visible; overflow-wrap: break-word !important;">它分Z捻和S捻两种。</span>加捻后，纱丝的捻向从右下角倾向左上角，倾斜方向与“S”的中部相一致的称S捻或顺手捻；纱线的捻向从左下角倾向右上角，倾斜方向与“Z”的中部相一致的称Z捻或反手捻。一般单纱常采用Z捻，股线采用S捻。</p><p style="margin-bottom: 25px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">股线的捻向按先后加捻的捻向来表示。例如，单纱为Z捻、初捻为S捻、复捻为Z捻的股线，其捻向以ZSZ表示。</p><p style="margin-bottom: 5px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">纱线的捻向对织物的外观和手感影响很大，利用经纬纱的捻向与织物组织相配合，可织出外观、手感等风格各异的织物。</p><section class="_135editor" data-role="paragraph"><p><br></p></section></section>