| 摘要 |
PROBLEM TO BE SOLVED: To provide an electroconductive conjugate fiber hardly causing abrasion and delamination of a conjugated component in a production step, and capable of keeping the initial good electroconductive properties even when the fiber is used as a fiber product for a long period. SOLUTION: This electroconductive conjugate fiber consisting of an electroconductive polymer layer (A) having a multi-branch-shaped cross section having three or more protrusions and 0.05-0.80 modified cross section degree, and comprising a thermoplastic polyamide containing 15-50 wt.% electroconductive carbon black, and a protective polymer layer (B) comprising a thermoplastic polyamide is regulated so that the electroconductive polymer layer (A) may be exposed at the tip of each protruded part in an arbitrary cross section, and the protective polymer layer (B) may occupy 50-97 wt.% of the total fiber weight and may be a thermoplastic polyamide obtained by polymerizing an aromatic dicarboxylic acid component and a 6-12C aliphatic alkylenediamine component. |
