Warp Tension Equalisation After Drawing-In
topic
Warp tension equalisation after drawing-in and mounting the warp beam on the loom uses the loom let-off and take-up systems to advance the warp by one full shed cycle before commencing production, equalising tension in the drawn-in warp ends that may have varying slack from the drawing-in operation, with individual end tensioning by weighted tensioning rods or spring tensioners at the warp beam being available on some loom designs to correct residual tension non-uniformities that the let-off system cannot equalise.
Role
Removes the tension irregularities introduced during drawing-in that would cause variable shed formation and elevated initial warp break rate at the start of weaving production if uncorrected, with proper tension equalisation before the first pick insertion preventing the cluster of warp breaks that characteristically occurs at warp start-up from tension non-uniformity accumulated during drawing-in and warp mounting operations.
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