1. a Department of Dyeing and Finishing , Kyungpook National University , Taegu , 702-701 , Korea
2. b School of Textiles, Yeungnam University , Kyongsan , 712-749 , Korea
3. c Department of Chemical Engineering , Kwangwoon University , Wolgye-dong, Nowon-gu, Seoul , 139-701 , Korea
4. d Electronic Materials and Devices Research Center, Korea Institute of Science and Technology , P. O. Box 131, Cheongryang, Seoul , 130-650 , Korea
5. e School of Textiles, Yeungnam University , 214-1 Daedong, Kyongsan , 712-749 , South Korea