Paper Title
Dyeing Properties and Functionality of Cotton and Silk Dyed with Fermented Indigo and Fresh Indigo
Abstract
This study looks into the stainability and functionality of the cotton and silk dyed with fermented indigo and fresh
indigo leaves as a research preceding the development of cultural crafted products using the functional fabrics dyed
Obangsaek. The CIELAB measurements of the cotton and silk dyed with fermented indigo and fresh indigo leaves showed
34.17, 37.26 and 66.55 for L*, -4.20, -4.58 and -15.15 for a*, and -20.45, -22.37 and -10.04 for b* respectively, while the
Munsell measurements exhibited 1.7BG, 1.0PB and 2.5B in color, 3.3, 3.6 and 6.5 of brightness, and 0.9, 5.4 and 4.0 of
chroma respectively. On the whole, fabrics dyed with fermented indigo and fresh indigo leaves showed high dyeing fastness
unlike fabrics dyed with any other natural dye. The fabrics dyed also exhibited SPF 50+, an outstanding sun blocking
performance. The deodorization rate of the fabrics dyed appeared low level, in 23.5~45.9% range. The dyed fabrics showed
a 95.0, 99.7 and 99.9% of excellent antimicrobial activity against staphylococcus aureus respectively, while they almost did
not appeared antimicrobial activity against Klebsiella pneumoniae.
Keywords: Stainability, Functionality, Fermented indigo, Fresh indigo leaves, Natural Dyeing