Application of Purified Lawsone as Natural Dye on Cotton and Silk Fabric

Table 1

Maximum exhaustion of lawsone dye by cotton and silk fabrics.

Fabric dyed with lawsone	Dye exhaustion (%)
Cotton without mordant	52
Cotton premordanted with tartaric acid	61
Cotton premordanted with CuSO4	72
Cotton premordanted with alum	68
Silk without mordant	71
Silk premordanted with tartaric acid	77
Silk premordanted with CuSO4	82
Silk premordanted with alum	80