<section data-role="paragraph" class="_135editor" style="font-size: medium; 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; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;">答：氨纶包覆纱又称氨纶包缠纱，包覆纱与其他弹力纱线最明显的区别在于芯丝无捻度。包覆纱中的氨纶丝与外包层之间的芯鞘关系明显，且芯丝与外包层之问的抱合程度明显低于包芯纱和合捻线，其结构如图2-4(c)所示。为此其弹性高于包芯纱和合捻线，伸长可达200％(双包纱)，在高弹织物中可获得50％左右的弹性，手感较包芯纱硬，其强度为外包层长丝或纱线的强度，因此，比同规格的包芯纱高，其缺点为在张紧状态下有露芯现象，故不宜制作深色的产品。</span></p></section><section class="_135editor" data-role="paragraph" id="autoparagraph" style="font-size: medium; 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>