Warp Tension
Resistance forces acting upon flax yarns occur when contact between the moving fibre and the stationary separation rods generates thermal energy. Lease rod friction identifies this drag as the strands pass through the lease field during the sizing or weaving preparation phase. Higher counts of broken ends develop whenever the surface condition of the ceramic or steel rods exceeds the threshold for acceptable drag.
Precise calculation of this tension informs the selection of rod materials and the necessary lubrication cycles during production.
Surface Calibration
Regular maintenance of the contact points prevents accumulation of starch residue or fibre debris. Technicians verify rod smoothness using specialized gauges that measure the micro-topography of the contact surface. Contamination on the rods forces a change in the resistance profile of the warp sheet as it travels toward the heddles.
Uniformity across the width of the machine ensures that edge ends undergo the same strain as those positioned at the center of the beam. A lack of consistency here introduces irregular stretch patterns into the final textile structure.
Material Load
Mechanical strain upon the yarn leads to physical fatigue and permanent deformation if the rod alignment deviates from the specified path. Excessive drag accelerates the shedding of fibres which deposits dust throughout the spinning or weaving room. Lowering the angle of contact reduces the total force applied to the flax strands and extends the life of the loom components.
Stable tension environments support the production of consistent fabric quality across long production runs. High levels of drag increase the failure rate of delicate yarns during periods of high humidity.
