Abstract
To evaluate comfort factors of the fabrics, yarn contact angles have been measured. The measurement was made by using a microscope attached with a newly developed specimen mounting device. Variables examined in the experiment were fiber type, yarn twist level, and fluid type. All produced a significant effect on the contact angle of twisted yarn, and the results could be rationalized on the basis of the known concepts related to the contact angle with fibrous materials. The methodology used and the results obtained were discussed in detail.