Dyeability and Antimicrobial Activity of Lycopus lucidus Turcz

In this research, the dyeing properties of Lycopus lucidus Turcz on cotton and silk fabrics were evalu-ated to establish a scientific database of natural dyes. The optimum dyeing conditions were identified with K/S values depending on the dyeing concentration, temperature, time, and pH. For the optimum con-ditions, the color changes for different synthetic mordants were observed as L, a*, b * and H, V, C. The color fastness after dyeing and mordanting was also examined. Additionally, the antibiosis of Lycopus lucidus Turcz was examined. The results were as follows: For the cotton, the optimized dyeing conditions were 300 % (o.w.f.), 50 o C, 40 min., and pH 5. For the silk fabric, the conditions were 450 % (o.w.f.), 70 o C, 60 min., and pH 4. The K/S value of dyed cotton improved about 1.03-2.78 folds after mordanting. The fabric color was yellow in the absence of mordanting, while it was reddish yellow after post-mordanting with FFC. Although the color changed with the mordanting method and mordant, the overall hue wa