Abstract
In a series of studies on the wettability of textile assemblies, apparent contact angles (ϕ) of wax-coated monofilament nylon and polyester mesh screens to water were measured to investigate the effect of the woven structure on the repellency of textiles. Expressions for the liquid-solid and liquid-air interfaces per unit of macroscopic surface area in the Cassie-Baxter equation ( f 1 and f2, respectively) have been derived for mesh screens using several models to calculate the apparent contact angles (ϕ A) theoretically. Comparison with experimental data has shown that the apparent advancing contact angles of water on wax-coated mesh screens can be quantitatively predicted by the Cassie-Baxter equation when the geometrical structure of the surface is accurately defined.
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