ELASTIC SYNTHETIC POLYMER FILAMENT WITH MULTI-LOBATED CROSS-SECTIONAL PROFILE

摘要

An elastic synthetic polymer filament having a multi-lobated cross-sectional profile is composed of (A) a filamentary axial constituent extending along the longitudinal axis of the filament, and (B) 3 to 8 filamentary lobe constituents radically protruding from and extending along the filamentary axial constituent each having a constricted portion thereof through which each filamentary lobe constituent is connected to the filamentary axial constituent, the cross-section of the filament satisfying the relationship (I): $wherein\; d1\; is\; a\; largest\; cross-sectional\; width\; of\; each\; filamentary\; lobe\; constituent\; (C).\mathop{\mathrm{image}}$