| 摘要 |
<p>This invention provides a process for melt-spinning a hollow conjugate filament splittable into spontaneously texturing sub-filaments. The process comprises extruding a hollow molten stream formed from axially extending segments of dissimilar polymers arranged alternately in side-by-side adhering relationship to form the hollow molten stream. The stream is then quenched under conditions sufficient to form a filament and the filament is then withdrawn from the stream at a predetermined spinning speed. The polymers, the spinning speed and the quenching conditions are sufficient to form a filament characterized in that sub-filaments split from the filament possess substantial latent torqueless helical crimp. A hollow conjugate filament being substantially free of crimp with subfilaments possessing substantial latent torqueless helical crimp is also disclosed.</p> |
