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Journal of the Korean Home Economics Association 2005;43(7):109-116.
견섬유의 코치닐 염색에서 염욕의 액성과 매염제가 미치는 영향
Effect of the Dye Bath and Mordants on the Dyeing of Silk Fabric using Cochineal
Dong-Won Jeon, Kim Kyung-Sun, Kim Jong-Jun
Dept. of Clothing and Textiles, Ewha Womans University
ABSTRACT
Using buffer solutions, consisting of pH 4, 5, 6, 7, and 8, silk fiber fabric specimens, pre-mordanted with one of the mordanting agents, Sn, Al, Cu, Cr, and Fe, were dyed using cochineal dyestuff. The color of the dyed silk fabric specimens was predominantly red(R) for the acidic range of pH 4 and 5, and predominantly purple(RP) for the neutral range of pH 6,7, with 8, with the pH boundary differentiating between the shades being between pH 5 and 6. As a general trend, the chroma value decreased as the pH changed from acid to alkali, and the highest chroma value us attained between pH 4 and 5. Regardless of the mordanting conditions, the trend was that ΔΕ showed the highest measured value in the acidic range of pH 4 and 5, and it dropped abruptly after the pH 6.
Keywords: 완충용액, buffer solution, 채도, chroma, , silk, 코치닐, Cochineal
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