green rays at E and F are more or lessabsorbed. This explains the cause of its much redder ap-pearance in artificial lights. Such a shade when dyed onfabrics exhibits strange dichroic properties ; its deeper shadesappearing much redder than its lighter tints. Spectrum No. 2 of Fig. 41 represents… … ABODE F G H Fig. 41.—Absorption spectra of a sage-green colour. No. 1 composed ofnaphthol yellow and methyl violet. No. 2, of naphthol yellow, woolgreen and a little red. Both colours match each other in daylight, butnot in gaslight. They have differently constructed spectra. on wool, their…
Color in the textile industries · Dyes and dyeing
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