1. Department of Clothing and Textiles, Pai Chai University, 155-40 Baejae-ro (Doma-Dong), Seo-gu, Daejeon, 35345, South Korea
2. School of Materials Science and Engineering, Gwangju Institute of Sci. and Tech. (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju, 61005, South Korea