<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 桃红R、红莲RH、红莲RRN是硫靛型染料，氧化速度较慢，在高温高压染色机上染色后，如立即水洗，出笼时一般在纱笼外圈及中心管周围的色纱有红点、红块疵点，出笼堆置又会出现白斑、线条。产生红点、红块的原因是由于染料氧化速度慢，水洗后局部已氧化所致。同时硫靛型染料不耐强碱，如染色后清洗不净、色纱部分带碱重，氧化后隐色体被剥落，造成白条、线条、白斑。解决的方法，一般可在染色后用小苏打1～2g／L，在30℃温度下处理10min，使烧碱反应生成纯碱，这样纱线上的pH值降低，从而可减少隐色体的剥落，避免产生白块、线条等疵病。</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></div>