• The Journal of the Convergence on Culture Technology
• /
• v.6 no.4
• /
• pp.275-281
• /
• 2020

We studied the dyeability and functionality of silks dyed singly with Caesalpinia sappan, Dactylopius coccus, combination-dyed with Caesalpinia sappan and Phellodendron Amurense Rupr., and with Dactylopius coccus and Phellodendron Amurense Rupr.. The color of silk dyed singly with Caesalpinia sappan was Red with Hue of 2.2 R, the color of silk dyed singly with Dactylopius coccus was Reddish Purple with Hue of 3.0 RP, The color of silk combination-dyed with Caesalpinia sappan and Phellodendron Amurense Rupr. was 2.7YR being in the Orange family, and the color of silk combination-dyed with Dactylopius coccus and Phellodendron Amurense Rupr. was Red with Hue of 4.3R. In the case of antimicrobial activity, except for silk dyed only with Dactylopius coccus, the other three types of dyed silk showed excellent antimicrobial activity against Staphylococcus aureus achieving higher than 91.1% of bacteria reduction rate. Against Klebsiella pneumoniae, silk combination-dyed with Dactylopius coccus and Phellodendron Amurense Rupr., and with Caesalpinia sappan and Phellodendron Amurense Rupr. presented very excellent antimicrobial property achieving bacteria reduction rate of 99.9%.