Friction of textiles on the human forearm is an important factor in comfort sensations of garments. We built an experiment to measure friction for textiles sliding on the forearm under loading conditions which are characteristic for wearing shirts or jackets. The hair coverage of the participants’ forearm was quantified by image analysis of photographs of the arm in the region of contact. Friction results for five standard textiles suggest to treat hair coverage in two classes. Sweating after physical activity leads to an increase of friction by factors of 2 to 5 for participants with less hairy forearms, while an increase by a factor of 1 to 1.7 only was found for participants with more hairy forearms. We introduce a method of wetting the forearm of study participants in a controlled way with water, which results in similar friction as for the sweating forearm after physical activity. The method allows for efficient studies of the role of skin moisture for friction including varying hair coverage of the skin.

纺织品在人前臂上的摩擦是服装舒适感的重要因素。我们建立了一个实验，以测量在负载条件下在前臂上滑动的纺织品的摩擦力，这是穿衬衫或夹克的特征。通过对接触区域中手臂照片的图像分析来量化参与者前臂的头发覆盖范围。五种标准纺织品的摩擦结果表明，可以分为两类来处理头发覆盖率。运动后出汗会导致前臂毛发较少的参与者的摩擦力增加2到5倍，而前臂毛发较多的参与者的摩擦力却增加1到1.7倍。我们介绍了一种以受控方式用水润湿研究参与者前臂的方法，导致运动后前臂出汗的摩擦力相似。该方法可以有效研究皮肤水分对摩擦的作用，包括改变皮肤的毛发覆盖范围。