尿素在溴靛蓝染色中的应用

Textile Auxiliaries(2017)

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Abstract
针对溴靛蓝染料溶解度低、染色温度高的问题,以尿素为助溶剂,探讨了尿素用量、烧碱用量、保险粉用量,染色温度对溴靛蓝染料溶解度、染液还原电位及织物染色深度、耐摩擦色牢度和拉伸强力的影响.结果表明,尿素可以提高溴靛蓝染料溶解度和织物染色深度,降低溴靛蓝染料的染色温度.当母液中溴靛蓝染料30 g/L、保险粉40 g/L、烧碱35 g/L、尿素75 g/L、还原温度60℃、还原时间60 min、稀染液在50℃染色时,织物可获得最大的染色深度,拉伸强力和耐摩擦色牢度相差不大.
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