The Kinetics of Fading of Dyes and the Filter Effect

Abstract
A study of the kinetics of fading for a series of model disperse dyes on nylon 6.6 and direct dyes on cellulose is described. The results confirm the importance of the filtereffect in determining the rates of fading, and a rate equation which allows for the filter effect is given. It is shown that this equation holds for the change in the rate of fading with concentration of several direct dyes on cellulose.

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