摘要
针对目前涤纶起绒织物着色烂花印花中存在分散染料耐碱性不佳的问题,研究了分散染料在高温碱性条件下其染液的可见光吸收特性和涤纶起绒织物着色烂花印花效果,分析了不同分散染料的耐碱稳定性,筛选得到一批耐碱性较好的分散染料,同时对分散红SXF和分散大红SXF进行分析,探讨了分散染料结构对其耐碱性的影响。结果表明:分散大红SXF等6种分散染料的耐碱性较好,且在25%Na OH碱性着色烂花印花时,着色效果较为理想;分散红SXF和分散大红SXF的母体结构对染料耐碱性影响不大,而取代基的结构对染料的耐碱性影响较大,含氰基染料的耐碱性明显优于含酯基的染料。
In order to solve the problem on poor alkali resistance of disperse dyes in colored burnt-out printing on polyester fleece fabric, the visible absorption characteristics of disperse dyes under high temperature alkaline conditions and the performance of colored burnt-out printing on polyester fleece fabric were studied. Disperse dyes with good alkali resistance were selected by analyzing the alkali resistance of different disperse dyes. Meanwhile disperse red SXF and disperse bright red SXF were analyzed ; the influence of disperse dye structure on alkali resistance was discussed. The results show that disperse bright red SXF and other five disperse dyes have good alkali resistance, and the performance of colored burnt-out printing on polyester fleece fabric is good when the concentration of NaOH is 25 %. The main structures of disperse red SXF and disperse bright red SXF have little influence on alkali resistance, while the substituent has significant influence. The cyano-containing dye has better alkali resistance than ester group-containing dyes.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2018年第1期98-103,共6页
Journal of Textile Research
关键词
涤纶
起绒织物
分散染料
烂花印花
耐碱性
polyester
fleece fabric
disperse dye
burnt-out printing
alkali resistance
