Core and Effect Yarn Systems in Air Texturing
topic
Air texturing machines feed two or more yarn components at different overfeed rates, with the effect yarn fed at higher overfeed of 20 to 60 percent forming the surface loops that provide bulk and texture while the core yarn fed at lower overfeed of 0 to 5 percent provides the structural strength and dimensional stability of the composite air-textured yarn, enabling the combination of different fibre types in core and effect positions for functional performance design.
Role
Enables the design of air-textured composite yarns with differentiated core and surface properties by separately controlling the overfeed of each component yarn that determines the proportion of each yarn component forming surface loops versus core structure, allowing combination of synthetic core for strength with natural fibre effect for surface aesthetics or elastane core for stretch with textured effect for cover in functional yarn structures.