羟基茜草素络合染料对羊毛的染色性能

Dyeing properties of wool with purpurin complex dyes

以铁离子络合羟基茜草素制备的络合染料(P-Fe)为研究对象,采用碱溶解和分散研磨两种方法对羊毛纤维进行染色。通过测试染色羊毛的K/S值和色牢度,研究P-Fe络合染料对羊毛织物的染色性能。结果表明:碱溶解和分散研磨染色法的最佳工艺均为染浴pH为4,染色温度100℃,时间60 min。两种方法染得羊毛纤维的耐日晒色牢度达到3级,耐汗渍色牢度、耐皂洗色牢度均在4级以上;分散研磨染色法所得纱线对金黄葡萄球菌和大肠埃希菌的抑菌率分别为82%和75%,体现出较好的抑菌效果。

Taking the complex dye(P-Fe)prepared by iron ion complex purpurin as the research object,wool fi⁃bers are dyed with alkali dissolution or dispersion grinding methods respectively.The dyeing properties of PFe complex dye on wool fabric are studied by testing the K/S value and color fastness of dyed wool.The re⁃sults show that the best process of alkali dissolution and dispersion grinding dyeing is that the pH of the dyeing bath is 4,the dyeing temperature is 100℃and the dyeing time is 60 min.The color fastness to sunlight of wool fiber dyed by the two methods reaches Grade 3,and the color fastness to perspiration and soaping are more than Grade 4.The antibacterial rates of dyed yarn obtained by dispersion grinding dyeing method against Staph⁃ylococcus aureus and Escherichia coli are 82%and 75%respectively.