Affiliation:
1. College of Human Ecology, Cornell University, Ithaca, New York 14850, U. S. A.
Abstract
The retention of individual fatty soils, in both the presence and absence of clay soil, on repeatedly soiled, aged, and washed unfinished Dacron/cotton blend was studied by means of a double-label radioactive tracer analysis. Fatty soil retention was influenced by unsaturation, polarity and chain length, but the presence of clay soil was not a significant factor under the experimental conditions employed. Fabric yellowing was measured on samples soiled with clay and pairs of fatty soils and on appropriate controls. None of the organic soils caused observable yellowing in the absence of clay. While clay soil alone contributed significantly to residual yellowness, additional yellowing occurred on samples soiled with clay, oleic acid, and triolein. It was hy pothesized that the yellowing behavior observed when clay, oleic acid and triolein were present was due primarily to the embedding of pigmented particulate soil in a polymerized fatty film during the second clay soiling process.
Subject
Polymers and Plastics,Chemical Engineering (miscellaneous)
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