Kinetic Impact
Pressure exerted by the reed against the fell of the cloth ensures the correct insertion of weft yarns. Beat-up dynamic force measures this energy in Newtons during high-speed loom operation. The force must be high enough to pack the weft tightly but low enough to avoid damaging the warp yarns.
Density Regulation
Achieving a specific pick count in linen fabric requires a precise adjustment of the loom’s mechanical settings. If the beat-up dynamic force is too low, the fabric will have an open and irregular structure that fails to meet buyer specifications. Conversely, excessive force can cause the reed to crush the flax fibers and create permanent marks in the cloth.
Digital sensors in modern rapier looms allow for real-time monitoring of this impact energy.
Component Stress
Longevity of the loom reed and the slay mechanism is directly linked to the intensity of the beat-up cycle. Constant high-energy impacts lead to faster wear on the mechanical parts and increase the frequency of maintenance intervals. Mills track the beat-up dynamic force in the machine log to predict when a reed replacement will be necessary.
Stable force levels throughout a production run result in a cloth with a perfectly uniform appearance and handle.
