Loom Interruption Fault
Transverse band defects created across fabric width due to loom stoppage and subsequent restart instability represent common visual weaving flaws. Stop marks define density variations or pick spacing changes occurring at the fell line when a weaving machine halts for warp break repair or weft supply depletion. Grey cloth inspection logs document stop mark counts and positions per fabric roll.
Mechanical Fell Behavior
Instantaneous loom stoppage causes immediate warp tension decay and stress relaxation in the woven cloth. Mechanical creep alters the physical position of the fabric fell relative to the stationary reed while the loom remains motionless. Upon restarting, the pick beating mechanism delivers unequal beat-up force on the first few picks, creating a dense line or thin gap across the cloth.
Electronic let-off and take-up systems counter this movement by executing automated motor compensation steps during loom startup sequences. Stiff flax yarns exhibit minimal elasticity, amplifying stop mark visibility compared to softer synthetic or cotton fabrics.
Fabric Defect Classification
Quality control guidelines categorize stop marks as major or minor visual faults depending on line width and visibility under standard light. Fabrics containing excessive stop mark occurrences are downgraded to second-grade quality prior to dyeing or export.