【作者】 张宾；

【导师】 张建波；

【作者基本信息】 青岛大学 ， 纺织化学与染整工程， 2008， 硕士

【摘要】 羊毛作为天然高档纤维,具有弹性好、吸湿性强、保暖性好、光泽柔和等特点,越来越受到人们的欢迎。羊毛属于一种蛋白质纤维,其染色主要用酸性染料、酸性媒介染料、活性染料和直接染料。但实际操作中,受各方面因素的限制,染色效果并不十分满意。因此选用适当的染料,研究羊毛染色新方法、新工艺、新理论是十分重要而紧迫的。稀土作为一种新型助剂,由于其特殊性质,在纺织印染中的应用研究越来越受到染色工作者的青睐。稀土金属离子可与羊毛上的羧基、氨基等基团以及染料大分子上的羟基、氨基等发生络合。利用这一特性,若先用稀土处理羊毛织物,然后再用染料对其染色,吸附在羊毛纤维上的稀土金属离子作为一种“中介”,相应的提高了染料对纤维的亲和力,从而最终提高了染料的利用率。本论文研究了用稀土Ce³⁺处理羊毛织物后,再用酸性媒介染料、活性染料等染色的新工艺。并探讨了预处理及染色工艺条件对上染百分率的影响,从而确定了最佳预处理及染色工艺,并测定了染色后织物的色牢度、断裂强力、抗菌等性能。结果表明:羊毛经稀土Ce³⁺处理并染色后,各种染色性能优良,实现了无铬或低铬染色的目的,一般酸性媒介染料或活性染料染色的皂洗牢度及上染百分率都得到了提高。由于稀土金属离子具有一定的抗菌性,染色后的织物同时具有较好的抗菌性。更多还原

【Abstract】 Wool fabric,as a high-grade and natural fiber,exhibit good propriety,such as excellent flexible,superior moisture absorption,good warm-keeping,gentle luster and so on.They are welcome by more and more people.Wool as a protein fiber,they can be dyed by acid dyes,acid mordant dyes,reactive dyes and direct dyes.However,subjecting to various factors,it is very difficulty to acquire good dyeing performance in the actual operation.So the choice of appropriate dyes on wool dyeing new methods,new techniques and new theory is very important and urgent.Rare earth as a new auxiliary,because of its special character,is increasingly favored by dyer in textile application.Rare earth metal ions can complex with carboxyl and amino groups of wool,hydroxyl and amino groups of dye macromolecules.Using this property, wool fabrics are pretreated with rare earth metal ions,and then dyed dyes.Rare earth metal ions which adsorbed in the wool fiber can regard as an "intermediary",and it should increase the dye affinity to the fiber corresponding,so the utilization of dyes are improved ultimately.This paper studied the technology that wool fabrics were first treated by rare earth metal ion Ce³⁺,then dyed with acid mordant dyes or reactive dyes.Factors exerting influences on dye-uptake were discussed in pretreatment and dyeing technology.The optimal pretreatment and dyeing technology were also obtained.Color fastness,strength and antibacterial activity of dyed wool were determined.The results show this method can acquire good dyeing performance and antibacterial property,and achieve the purpose of no or low-chromium dyeing,dye-uptake of acid mordant dyes or reactive dyes are improved obviously.Also rare earth metal ion possess antibacterial property,the dyed fabric acquired good antibacterial property.更多还原