Reed Congestion
Excessive concentration of warp threads in the reed dents causes increased friction and limits yarn mobility during shed changes. The occurrence of warp end crowding arises when the drawing-in plan or the reed selection places too many ends per dent for the specified yarn diameter. This tight spacing prevents the flax fibers from moving freely, leading to high yarn abrasion during weaving.
Damage Mechanism
Increased mechanical contact between neighboring yarns under high loom tension leads to hairiness and structural failures. As warp end crowding persists, the protective size coating on the flax yarn scrapes off, resulting in clingy ends that fail to separate when the shed opens. This lack of separation causes the weft pick to catch on the warp yarn, producing floats and stitching errors that diminish the textile’s grade.
The loom operator must regularly inspect the reed for lint buildup and adjust harness timing to facilitate a cleaner shed opening, which helps reduce the abrasive impact of the clustered yarn on the reed wires.
Pattern Correction
Re-drawing the warp threads through a wider reed with fewer ends per dent resolves the spacing issue and restores normal yarn movement. Technicians record any adjustments made to the drawing-in instructions in the loom setup book to prevent repeat occurrences of the defect. This correction ensures the fabric density aligns with the target specifications while minimizing weaving stops.
