<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;"><section style="max-inline-size: 100%; margin: 0px; padding: 0px; -webkit-tap-highlight-color: rgba(0, 0, 0, 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;">　　经、纬纱在织物中相互屈曲，其屈曲的程度可以用屈曲波高来描述。经、纬纱在织物中屈曲状态如同波纹一样，假设以纱的中心线为代表，我们可以得到一条波纹状曲线。这条波纹曲线的波峰到波谷之间的高度差称为屈曲波高。如图4—4所示，hj，为经纱屈曲波高，hw为纬纱屈曲波高。</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><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><div style="text-align: center; "><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/fzmlsj1529.png"></div><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;">　　由于经、纬纱在织物中是相互紧密连接的，因此，一个方向的纱线如果伸直一些，另一个方向的纱线就必然要多屈曲一些。换言之，一个方向纱线屈曲波高减小一些，另一个方向纱线的屈曲波高就要增大一些。可见，经、纬纱屈曲波高之间是相互关联的。再进一步说，如果一个方向的纱线完全伸直，另一个方向的纱线就会达到最大的屈曲波高。图4—5(a)所示为经纱呈完全伸直状态，而纬纱具有最大的屈曲；图4—5(c)所示为纬纱呈完全伸直状态，而经纱具有最大的屈曲。这两种结构状态为织物中经、纬纱相互配置关系的极端状态，在实际织物中是不存在的。实际上各种织物的几何结构必定处于达两种极端状态之间，如图4—5(b)所示。</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;">　　根据经纬纱屈曲波高之间的这种变化关系，经研究，得到一条重要规律：织物中经、纬纱屈曲波高之和始终保持为一常数，且恒等于经、纬纱直径之和。这是织物几何结构中的一项重要性质，即</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><div style="text-align: center; "><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/fzmlsj1530.png"></div><div style="text-align: center; "><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/fzmlsj1531.png"></div><div style="text-align: center; "><br></div><div style="text-align: center; "><br></div>