um, are understood to be the blue and violet class. § 16. The colours of the spectrum consist of unmixed or • i K 14 THE SCIENCE OF COLOITB MIXING. homogeneous lights, and they cannot be further decomposedinto any other colours. Thus, for example, the green or theviolet rays of the spectrum, when… … Fig. 3.—Simple method of obtaining a spectrum. are pure and unmixed colours. The various hues seen ineveryday life—the dyes and pigments and the colours offlowers, etc.—are never homogeneous, but are mixtures ofvarious differently coloured rays. The foregoing diagram,Fig. 2, shows how the purity of…
Color in the textile industries · Dyes and dyeing
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