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Role of Hair Coverage and Sweating for Textile Friction on the Forearm

  • 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.

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Document Type:Article
Author:Jingchun Lyu, Novaf ÖzgünORCiD, David J. Kondziela, Roland BennewitzORCiD
Parent Title (English):Tribology letters
First Page:100
Year of first Publication:2020
Release Date:2022/08/30
Tag:comfort; hair; skin friction; sweating; textiles
Impact:03.190 (2020)
Funding Information:German Research Council (SE 1425/14-1)
Research Departments:Interaktive Oberflächen
DDC classes:500 Naturwissenschaften und Mathematik / 530 Physik
Open Access:Open Access
Signature:INM 2020/093
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International