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Textile Research Journal
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Wicking of Spin Finishes and Related Liquids into Continuous Filament Yarns

Y.K. Kamath

TRI/Princeton. P.O. Box 625, Princeton. New Jersey 08542, U.S.A.

S.B. Hornby

TRI/Princeton. P.O. Box 625, Princeton. New Jersey 08542, U.S.A.

H.-D. Weigmann

TRI/Princeton. P.O. Box 625, Princeton. New Jersey 08542, U.S.A.

M.F. Wilde

TRI/Princeton. P.O. Box 625, Princeton. New Jersey 08542, U.S.A.

Using a simple electronic method for measuring wicking times, we have shown that horizontal wicking of liquids into continuous filament yarns follows the Lucas-Wash burn equation. We have investigated the effects of the liquid properties, viscosity, and surface tension, and of the liquid-solid interaction parameter cos {theta}a. We have found that transient effects due to surfactant adsorption play a significant role in wicking, and that cos {theta}a values of ~0.7 or higher are necessary for wicking to take place. Certain kinds of fluorosurfactants seem to have a considerable negative effect on the wicking of model finishes in yarns and on the distribution of these finishes on the surfaces of constituent fibers.

Textile Research Journal, Vol. 64, No. 1, 33-40 (1994)
DOI: 10.1177/004051759406400104
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