This paper reviews the basic theories of moisture and liquid transport. The methods used to measure liquid-substrate interaction are summarized, compared and discussed as to use. The wetting properties of fibres, yarns, fabrics, chemically-modified fibres and chemically-treated fabrics as determined by many researchers are presented, as well as the results of moisture transfer from fabric layer to fabric layer. Recommendations are proposed for areas where additional research is required on wetting properties to provide a more adequate base for the intelligent design of wicking systems for clothing.
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