Air Jet Spun Yarn Mechanics in Elastic Woven Fabrics
Air jet core-spun yarns deliver torque-free, pill-resistant elastic wovens by locking polyurethane filaments inside parallel staple cores bound by vortex wrappers.
Profiled Reed Insertion
Insertion Technique
Air-jet weaving process utilizes a specialized reed with a hollow channel to guide the filling yarn across the loom. The profiled reed insertion method relies on this tunnel to contain the air blast and maintain the velocity of the yarn over long distances. This configuration allows for the production of wider fabrics at higher speeds than traditional flat reed systems.
Mechanical Component
Concave shapes on the face of the reed wires form a continuous path for the air and the yarn. During the profiled reed insertion, sub-nozzles located along the width of the loom provide timed pulses of air to keep the yarn moving. This synchronized action ensures the weft reaches the receiving side without tangling or losing speed.
Operational Benefit
Reduced air consumption is achieved because the tunnel focuses the energy of the blast directly on the yarn. A mill running these reeds can operate at speeds exceeding 1000 picks per minute while maintaining high efficiency. The design also reduces the stress on the warp yarns by minimizing the contact area.
Alignment Limit
Precision in the alignment of the reed is necessary to prevent the yarn from escaping the channel. Worn or damaged wires can cause snagging and stop the loom.