1. Institute of High Polymer Research, Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda 386-8567, Japan,
2. Institute of High Polymer Research, Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda 386-8567, Japan
3. ENSAIT, Ecole Nationale Supérieure des Arts et Industries Textiles, 9, rue de l'Ermitage, 59100 Roubaix, France