未利用植物色素と媒染金属の相互作用とその色相

概要

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Silk dyeing using natural dyestuff extracted from apple branches was examined about the possibility of useful dyeing and other way of application. Hue of dyed silk cloth was compared with the cloth dyed by model compounds. Six kinds of tannic compounds were chosen as model compounds for the dyestuff extracted from apple branches. Mordant metals were Fe3＋, Cu2＋, Sn4＋, Al3＋ and Cr6＋, The hue of dyed cloth was measured on a spectrophotometer and XYZ colorimetric system and CIEL*a*b* color space were both employed to evaluate the hue.Silk cloths could be dyed into the hue covering from yellowish to reddish brown. Some compounds similar to Catechol and PyrogalloI would be contained in the color extracted from apple branches. Dominant wavelength（λd）of dyed cloths were not influenced by the dyestuff concentration, and were almost constant. By mordant treatment, （λd）values were shifted to long wavelength with the increase of dyestuff concentration in order of Cu＞Al＞Cr≒ Sn except Fe.
長野県短期大学の論文
1998-12-00