Fig. 3From: A timeline for the introduction of synthetic dyestuffs in Japan during the late Edo and Meiji periodsSERS spectra of the natural dyestuffs analyzed in the prints. Spectrum (b) is obtained from a red area in a print dated 1865. Signals of reference safflower red (a) were detected. Spectrum (c) is obtained from a red area in a print dated 1872. Signals of reference carmine (Winsor & Newton carmine lake, spectrum d) were detectedBack to article page