<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; overflow-wrap: break-word !important; outline: none 0px !important;">　　几乎所有纺织品在染色、印花、整理之前,都要进行煮练、漂白等前处理。其目的是利用物理和化学的方法,除去坯布上含有的天然杂质以及在纺织过程中施加的浆料和沾上的油污,使织物具有洁白的外观、柔软的手感和良好的润湿渗透性能等,为染色、印花和整理等后加工提供优质的半制品。前处理设备,就是指进行这些加工工序的一类设备。棉及棉型织物前处理的工序较多,所涉及的设备主要有烧毛机、退浆机、煮练机、漂白机、开轧烘机、丝光机和热定形机等。</span></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;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">　　退浆机实际上是由浸轧机和水洗机组成的联合机。煮练机主要由煮布锅和水洗机或浸轧机、汽蒸设备和水洗机组成。漂白机则由浸轧机、汽蒸设备和水洗机组成。退浆机、煮练机、漂白机可以组成联合机,称为退煮漂联合机即练漂机。开轧烘机则是使绳状织物展成平幅织物的设备,它由开幅机、轧水机和烘筒烘燥机等组成。热定形机已在烘燥机部分讲授,本章主要介绍烧毛机、练漂机和丝光机。</span></p><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>