Process and apparatus for manufacturing a folded yarn which contains at least one main yarn component and an integrated highly elastic yarn component

摘要

A process and an apparatus for manufacturing a folded yarn which contains at least one main yarn component based on staple fibres or continuous filaments and a further integrated or embedded highly elastic yarn component which, compared with the main yarn component, has a significantly higher extensibility of up to 400% are designed in such a way, using the two-for-one twisting or direct calibration principle, the highly elastic yarn component, having been given the necessary extension, is brought together with the main yarn component between the point of entry of at least one main yarn component into the yarn inlet tube of the two-for-one twisting spindle and the thread-guide eyelet confining the upper end of the yarn balloon formed.