低温活性染料的染色工艺及染色性能研究

摘要

In order to promote the application of low temperature reactive dyes in production,the effect of dyeing process on the dye uptake of type L reactive dyes and dyeing performance of type L reactive dyes were investigated. The results showed that the opti-mal conditions were sodium chloride 50 g/ L,sodium carbonate 5 ~ 6 g/ L,dyeing and fixing at 40 ℃,and fixing for 70 min with L type reactive dye 3% ,blend of sodium carbonate and sodium hydroxide as fixing alkali agent. The affinity and substantivity of type L reac-tive dye with cellulose fibers are low,while reaction rate is high,and compatibility is good between dyes.%为了推进低温活性染料在生产中的应用，研究了染色工艺对 L 型活性染料上染百分率的影响与 L 型活性染料的染色性能。结果表明，当 L 型活性染料质量分数为3%时，用纯碱与烧碱的混合碱为固色碱剂，最佳染色和固色温度为40℃、最佳食盐用量为50 g／ L、最佳纯碱用量为5~6 g／ L、最佳固色时间为70 min，L 型活性染料对纤维素纤维的亲和力及直接性低、反应速率大、染料之间相容性好。