特异染色是指对特定结构的元素具有特定亲和力的染色。
A specific stain is one having a specific affinity for particular structural elements.
棉纤维的强度高、抗皱性好、吸湿性好，对染料具有良好的亲和力，染色容易，色谱齐全，色泽也比较鲜艳。
With high strength, excellent wrinkle resistance and moisture absorption, cotton fiber has good affinity to dye materials and is easy dyeing. The chromatography is complete and colors are bright.
结果发现：SN型活性染料与纤维反应活泼性愈高，染料对纤维亲和力愈大，则其染色速度愈快，反应率愈高。
The result shows:The higher reactivity of dye with fabric, the larger the absorption affinity of dye on fabric, and the faster the dyeing speed the higher reaction yield.
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