Stress Maximum
Dynamic forces exerted on the longitudinal threads during the opening of the shed reach their highest point at the moment of maximum displacement. The warp tension peak identifies the specific millinewton or gram force value recorded when the heddles are at their full height. This measurement is fundamental for preventing the overstretching of delicate flax fibres.
It is captured using high speed tension meters during the machine setup phase. Precise monitoring helps to avoid permanent deformation of the yarn.
Fibre Threshold
Every variety of linen yarn has a breaking point that must never be exceeded by the mechanical action of the loom. If the warp tension peak is too high, the yarn will snap repeatedly and create knots that ruin the fabric surface. Adjusting the let-off motion or the shed geometry can lower these force spikes.
Stable tension is the foundation of a smooth weaving operation.
Loom Calibration
Variations in the peak occur as the diameter of the warp beam decreases throughout the production run. Monitoring the warp tension peak allows for real time adjustments to the electronic control systems. This prevents the cloth from becoming tighter as the beam empties.
Consistent force application across the entire length of the warp ensures the final linen fabric has a uniform hand feel.
