Airborne Force Distribution
Atmospheric pressure gradients within high-speed spinning machinery generate pneumatic shear stress. Internal airflow drag forces act against the exposed surface of the flax fibre during the rapid transfer through pneumatic suction nozzles. This interaction determines the probability of mechanical fibre damage at the feed stage.
Material Resistance
Internal cohesion between individual bast fibres counters the displacement force exerted by these air currents. Resistance to this deformation depends on the length of the fibre and the presence of residual pectin after the retting process. Weakened bond strength between fibre bundles increases the likelihood of breakage during extraction from the carding mechanism.
Fibre segments that sustain high loads often exhibit frayed ends or thinning points.
Quality Verification
Technical standards for spinning performance require the minimization of pneumatic shear stress to maintain the integrity of the long line. Inspection of the finished yarn under magnification shows surface variations that originate from air friction experienced during the initial drafting. High values on the tension sensor during the pneumatic transport stage correlate with a reduction in the ultimate tensile strength of the processed material.
Excess turbulence at the nozzle entry point creates inconsistent yarn diameters and lowers the total yield of high-grade flax output.
