Abstract
The diffusion of disperse dyes in various polymer films has been studied by a microdensitometric technique. The films were dyed in aqueous dye dispersions, in presence and in absence of dyeing accelerants, and in solutions of dye in organic solvents. Dyeing of appropriately pretreated films conformed to the model of Fickian sorption, whereas dyeing of polymer films in the presence of dyeing accelerants showed in some instances marked deviations from this model. These results are discussed in terms of modern theories of diffusion.
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