Yarns made from core-seed filaments and preparation methods thereof

摘要

All core-sheath filaments in the yarn, the ratio A (%) of core-sheath filaments with (M ± 0.1M)% of the sheath content in the volume before and after each core-sheath filament at the same time, simultaneously and simultaneously The core of the core-sheath filament by extruding a spinnable polymer with or without additional single component filaments, characterized by meeting the conditions A≤100, M≥0.5 and A≥30 + (0.1M) ⁸ F) a sheath obtained from which at least almost all core-sheath filaments consist of a core-sheath filament having a complete sheath.