OUR MIXING. A few of these compound shades are considered under thetertiary colours. It is an interesting experiment to observe with thepocket spectroscope the formation of an orange by theaddition of a little red to a yellow. A solution of naphtholyellow or picric acid gives a beautiful bright… … Fig. 35.—Showing the gradual increase in absorption of the spectrum byadding red to yellow to produce orange. (A) represents absorptionspectrum of any of the aniline yellow dyes. (B) with slight additionof red. (C) a full orange colour by admixture of yellow and red.(D) represents the absorption of…
Color in the textile industries · Dyes and dyeing
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