Applying Section XI Note 7 Criteria to Borderline Linen Goods
Applying Section XI Note 7 requires auditing mill edge finishes, drawn threads, and cutting geometry to prevent high-duty Chapter 63 customs reclassifications.
Knotted Fringes
Fringe Security
Warp preparation requires securing loose yarn ends before mechanical finishing begins, and knotted fringes emerge directly from this preparatory safeguard during manual loom dressing. Chinese mills handle this operational stage by twisting and tying individual warp threads into stable terminal bunches immediately beyond the reed. Flax supply variations dictate the frequency of these hand ties, because weak or short staple fibers slip out of standard heddle arrangements during high tension shed formation.
Technical supervisors inspect every beam layout for uniform knot tension before signing the production docket that authorizes shuttle insertion.
Termination Inspection
Loom output grading relies on strict evaluation parameters that separate raw fiber quality from finished cloth characteristics. Examiners assess knotted fringes against buyer acceptance criteria rather than relying on the internal mill standard used during daily spinning checks. Export documentation requires precise verification of fringe integrity, ensuring terminal knots remain secure through alkaline scouring, bleaching and final calendering treatments.
Defective fringe ties allow adjacent warp yarns to unravel during wet processing, which immediately downgrades commercial fabric classification to scrap status.
Terminal Mechanics
Mechanical finishing exerts extreme longitudinal pull on fabric edges, making proper fringe stabilization essential for preventing catastrophic warp displacement. Tension loads distribute evenly across the knotted fringe array during tenter frame drying, stopping lateral distortion before the cloth reaches final rolling tables. Commercial buyers reject shipments possessing uneven fringe lengths because downstream garment assembly equipment depends on exact edge alignment for automated cutting.
Terminal density calculations determine the exact yarn count required inside each individual knot to withstand high velocity steam pressing without slippage.