Some Theoretical Considerations of the Dyeing of Cellulose Acetate with Disperse Dyes

Abstract

Theoretical aspects of the disperse dyeing of secondary cellulose acetate are considered. Two models for the dyeing process are develpoed provisionally, one based on mixing of polymer segments with absorbed molecules, one based on absorption onto sites within the fiber. From a consideration of the experimental results available, the model based on mixing is rejected as unsatisfactury. The model based on absorption onto sites is quatitativety consistent with most of the experimental results available. Although both models are crude approximations, the qualitative agreement with experiment shown by the site model offers the possibility that it may be used as a stepping stone to further experiments and development of a more exact theory of disperse dyeing for cellulose acetate.

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