Natural dyeing characteristics of korean traditional paper with smoke tree (Cotinus coggygria Scop)

The purpose of this study was to estimate natural dyeing properties of Korean traditional paper (Hanji). We dyed the Korean traditional paper with dyestuff which extracted from wood meal of Cotinus coggygria Scop (smoke tree) using hot-water, ethanol and K2CO3 solution. As mordants, 0.5% of AIK(SO 4)2, FeCb, and CuCH3(COO)2 solution were used respectively. The color of dyed Hanji mainly depended on not the methods of extraction but the kinds of mordant. The dyed Hanji mordant with AIK(SO4)2 colored vivid yellow, FeCl2 colored dark olive, and CuCH3(COO)2 colored brown and/or orange. The dyed Hanji with hot-water extractive had the highest K/S value and ethanol and K2CO3 solution extractives were followed. The K/S value of dyed Hanji mordant with A1K(SO4)2 was higher than that of FeCl2 and CuCH3(COO)2. The dyeing effectiveness of after-mordanting method was superior to the others but sim-mordanting method was the worst.