<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;">　　真丝织物的汽熨整理也称蒸绸,它是利用蛋白质纤维在湿热和压熨的综合作用下,使织物表面平整,形状和尺寸稳定,降低织物的缩水率,获得柔软而富有弹性的手感,并消除由辊筒干燥或轧光加工带来的“极光”,从而使织物的光泽柔和。</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;">　　蒸绸设备有间歇式和连续式两种。间歇式蒸绸机一般借用毛织物蒸呢的封闭蒸呢机。连续式蒸绸机采用连续式蒸呢机,该机进绸处有超喂装置,并配有高效冷却、汽蒸系统,有导向、张力和校直包布的控制装置,如图10-30所示。这种设备的工作原理与呢毯整理机基本相同,只是大辊筒表面有孔,外部密闭,被处理的织物与棉绒布一起卷绕在辊筒的表面,蒸汽由外部喷入大辊筒,通过呢毯和被蒸织物在辊筒内进行抽吸,并使辊筒表面一部分用于烘干而另一部分用于汽熨。该机操作方便,织物冷却效果好,可在出绸处立即打卷,加工薄、中、厚各种类型的织物均可。呢毯辊筒压力294kPa(3kgf/cm2),车速20m/min。国外有的蒸绸机把汽蒸大辊筒和呢毯辊筒分为两只,有的设备中还多加了一只对呢毯进行烘干的烘筒,用这样的设备对真丝织物进行蒸绸效果更好,可使整理后的织物获得汽熨和呢毯防缩两种整理的综合效果。</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;">　　近年来,采用连续蒸呢机和平幅连续蒸汽预缩机联合处理真丝织物,它克服了使用机械超喂整理出现的木耳边和鱼鳞皱等疵病,消除了由于机械张力而存在的内应力和织物表面的极光,保持了真丝绸原有的柔和光泽和丰满、厚实、柔软的手感,大大降低了织物的缩水率。</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;">　　平幅连续汽蒸预缩机结构示意图如图10-31所示。它由超喂辊、织物输送带、蒸汽给湿区、烘燥区、冷却区等几部分组成。由于超喂率较大,丝织物在输送带上呈波纹状,随输送带向前移动。进入蒸汽给湿区后,织物上下方有强烈抽吸作用的饱和蒸汽喷向织物,蒸汽能渗入到织物内部,使织物吸湿膨化,改善经(纬)向纱线的织物状态,所以蒸汽效果好。输送带下方装有振动辊,由于它的不断转动,周期性地敲打输送带,使织物随之振动,并能不断变换位置和松弛收缩。当织物离开汽蒸松弛区后,织物能被迅速排气冷却,烘干定形以保持尺寸稳定性。该机的汽蒸区通道体积小(长约1.5m,外壳高约15cm),因此耗汽量不大,汽蒸区顶部装有蒸汽再加热室,由于顶部温度较高,避免了冷凝水滴的形成。汽蒸收缩机的工艺条件为:蒸汽压力392kPa(4kgf/cm2),车速20m/min,超喂5%～6%。</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; 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>