THE EVALUATION OF EXPERIMENTAL FABRICS AS ALTERNATES FOR STANDARD WOOL FABRICS
Quarterly rept. no. 10 for period ending 25 Dec 1953
HARRIS RESEARCH LABS INC WASHINGTON DC
Pagination or Media Count:
Since alteration in the wicking behavior is the result of blending of synthetics with wool, some questions have been raised as to the consequences of this phenomenon in warmth and comfort of clothing. Experiments were conducted analagous to two differing types of use situations 1 that corresponding to moist-warm conditions in which a single layer of cloth is in contact with a moist skin and one face freely exposed to the wind, and 2 that corresponding to cold weather conditions in which multilayers of fabrics are used and free exposure of some of the component layers is absent. Under conditions in which free exposure of the moist fabric to air is prevented, as in the interior layers of arctic assemblies the wet thermal resistance is not related to the wicking character of the fabric. This is demonstrated by the similar wet thermal resistance of underwear made of wool and shrink-resistant wool, and of nylon and water repellent nylon. A comparison of methods now used for measuring wicking was made in order to determine whether any one of the methods was potentially suitable for specification purposes. With a group of fabrics differing widely in this property, very good agreement was found with the vertical strip method, a horizontal strip method and the drop absorption technique.