Application of Montmorillonite in Dyeing on Silk Fabric with Mugwort

The montmorillonite was took as mordant in dyeing on silk fabrics with mugwort natural dyes.Silk fabrics were dyed by mordanting.The color feature value and color fastness were tested and were compared with that of the silk fabrics dyed with direct dyeing and alum mordanting dyeing.The results show that,as a mordant,when the amount of montmorillonite is 5g•L-1,the fabric dyeing depth is the highest.The color fastness of the silk fabrics dyed with montmorillonite mordanting is higher than that of silk fabrics dyed with direct dyeing,and the color fastness grade is equal with that of silk fabrics dyed with mordant metal salts.