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全部资讯   / 染棉毛针织物用直接耐酸大红4BS时经常发生色花,如何解决?

染棉毛针织物用直接耐酸大红4BS时经常发生色花,如何解决?

2012-09-14 09:49:03

<div><br></div><div><section class="_135editor" data-role="paragraph" 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 直接耐酸大红4BS上染率好,移染性差,对盐敏感,很易产生色花。一般染色时宜缓慢升温和分批加盐来控制上染,染色后阶段染液宜自然降温至80℃,有利于染料吸尽。用尿素作直接耐酸大红4BS染色助剂可获得较好效果,解决了色花、色斑现象。</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; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;">  具体工艺流程为:坯布(不做前处理、不皂煮、也不做漂底,用坯布直接染色)→染色→水洗→固色→水洗→脱水→烘干→轧光(呢毯定形)</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; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;">  工艺配方为:100%直接耐酸大红4BS x,尿素y,雷米邦A 2%~3%,食盐少加或不加,浴比1:25,温度100℃,时间60min。固色用固色剂Y 4%~6%,98%HAc 0.2mL/L,浴比1:15,温度60℃,时间15min。染色牢度:皂煮4级,沾色4级,干摩3级,湿摩2-3级。染色中加入尿素的原理是,尿素能提高染料的溶解度,促进纤维膨化,有利于染料分子均匀上染纤维,在加盐或少加盐的情况下,也能提高给色量和鲜艳度,达到匀染目的。</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></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></div>

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