Abstract
Wool and silk fabrics dyed with Kayakalan Black 2RL (C. I. Acid Black 155) were plasmatreated with O2, N2, Ar, NH3, and CF4 gases. Part of the dyed fabric was plasma-treated after silicone resin treatment. While O2 plasma treatment considerably increased the color depth, other gases had so significant effect on the depth. Although, silicone resin treatment itself increased the color depth because of the low refractive index, aftertreatment with O2 plasma was not effective. The O2 plasma treatment formed many microcraters on the fiber surface, but N2, Ar, NH3, and CF4 gases did not, Judging from the results of scanning electron microscope (SEM) and electron spectroscopy for chemical analysis (ESCA), it is considered that the microcrater formation by the O2 plasma treatment plays an important role in increasing the color depth.
