The dispersion mechanism of a DDT solution in a variety of woven fabric structures is described. The dispersion is illustrated by scanning electron microscope (SEM) micrographs and related to fiber morphology, fabric geometry, weight, and finish. The kinetics of dispersion is related to the size and shape of the dispersion area and to the concentration of radioactive-labeled DDT. Findings show that final location of DDT within textile substrates is related to fiber content and morphology, fabric geometry, and finish. Fiber irregularities serve as deposit sinks for the chemical soil. The finish influences soil dispersion by making the fiber surface smoother. Fabric weight and geometry determine the size and shape of the dispersion area. The maximum concentration of DDT deposit is found to be at the outermost boundary of the dispersion area, not at the center.
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