媒染对茜草色素染色羊毛性能的影响

Effect of mordanting on the dyeing properties of wool with madder pigment

为了全面研究金属离子媒染对天然染料染色羊毛性能的影响,选择茜草色素对羊毛织物进行染色,在优化染色工艺条件的基础上,探讨了金属离子媒染对茜草色素羊毛织物染色性能的影响。研究结果表明:媒染可以有效提高羊毛织物的色牢度,媒染后的织物耐光照色牢度达到4级,其他色牢度大于等于3~4级;不同金属离子媒染后染色织物的得色量显著提升,颜色特征值具有较大的变化;织物表面元素分析表明色牢度提升和颜色变化的程度与金属离子的含量有关。

In order to study the effect of metal ion mordanting on the dyeing performance of wool with natural dyes,madder pigment was selected to dye wool fabrics.On the basis of optimizing the dyeing process conditions,the influence of metal ion mordanting on the dyeing performance of madder pigment wool fabrics was explored.The research results indicate that the color fastness of wool fabrics can be effectively improved by mordant treatment.The color fastness to light reaches level 4,and other color fastness levels are higher than or equal to level 3-4.The color yield of dyed fabrics significantly increased after being dyed with different metal ions,and the color characteristic values of mordant dyed wool fabric show significant changes.The analysis of surface elements on fabrics indicates that the degree of improvement in color fastness and color change is related to the content of metal ions.