Relay Nozzle

Pneumatic Coordination

The dense and irregular structure of linen yarn requires precise control of the air stream. Activations of each relay nozzle must be synchronized with the position of the weft yarn tip as it travels from the insertion side to the receiving side. An incorrect timing sequence can cause the yarn to buckle or stall inside the shed, resulting in a weaving stop.

This synchronization is managed by the microprocessor control of the loom, adjusting the blow duration to match the yarn weight.

Pressure Optimization

Excessive air pressure from the auxiliary blowers can untwist the wet-spun linen yarn or cause yarn damage. Adjusting the relay nozzle air pressure prevents yarn disintegration while maintaining sufficient carry force. Lower pressure also reduces compressed air consumption, which decreases the operational energy cost of the mill.