1. a College of Textiles and Clothing, Tianjin Polytechnic University, 63, Chen Lin Zhuang Road, HeDong District, Tianjin City, P.R. China, 300160
2. b College of Textiles and Clothing, Tianjin Polytechnic University, 63, Chen Lin Zhuang Road, HeDong District, Tianjin City, P.R. China, 300160
3. c Doctoral Student, Retailing and Consumer Sciences, Univ. of Arizona, PO Box 210033, Tucson, AZ, 85721–0033, USA