The production of core yarns has continuously grown since about the middle of the sixties. Meanwhile, approx. 10 million ring spindles worldwide produce core yarns.
The spinning of core yarn is costly and complicated. Irrespective of these handicaps, the demand for such yarns is continuously growing. Growth rates of 200,000 to 300,000 spindles per year are expected in future, too.
Core yarns consist of a filament core covered by staple fibres. This design permits to ideally combine the advantages of filaments (elastomers) like high strength or high elongation, with those of the staple fibres like textile appearance and touch, moisture absorption or expansion (cotton) or light resistance etc. The essential quality characteristic of core yarns is the best possible coverage of the filament core with the least possible slippage of the covering fibres. SUESSEN has supplied for many years most different devices to produce core yarns and goes on with this tradition offering new, until now unrivalled products like EliCore and EliCoreTwist for the manufacture of compact core yarns.
About the Author
The author is the Technical Director Ring Spinning, SUESSEN