Mechanical Adjuster
Loom configurations that control warp separation during weaving allow for independent movement of upper and lower warp sheets. Utilizing asymmetric dobby shedding helps minimize yarn abrasion on flax threads which have low elasticity and high surface roughness. The mill setting card records the height differences set between the upper and lower sheets to prevent structural damage.
This mechanical adjustment ensures that the more fragile warp yarns undergo less displacement than the stronger ones during the shed opening. Adjusters systematically check the shed geometry at each loom start to ensure that the yarn clearance remains consistent across the entire width of the reed.
Tension Balance
Equalizing tension across flax warp sheets during shed opening is difficult due to the low elongation of linen fibers. Standard practices require calculating the stress on both sheets during yarn crossover. Lower warp tension prevents yarn snapping while upper sheet elevation determines the pick spacing on heavy canvas.
These values are checked against the mill’s internal yarn stress profile before production begins.
Weaving Quality
Eliminating warp breaks improves the overall weave efficiency and reduces fabric defects. Fabric grade is evaluated at the gray cloth inspection table using the standard export inspection protocol. An uneven shed opening minimizes yarn hairiness that often leads to fabric fuzz.
Mills document these quality grades in the daily loom output report.
