Loom Efficiency Losses on Fine Setts and Who Absorbs Them
Fine warp setts collapse loom efficiency through yarn cling and stops; buyers absorb costs via sett surcharges unless target efficiency caps are contracted.
Four-Point Grading System
Defect Calculation
Inspection protocols in commercial flax mills quantify cloth irregularities by assigning penalty points based on the size of individual blemishes. The four-point grading system provides a numeric framework where inspectors identify holes, slubs or knots to assign scores from one to four per linear yard. A count of points represents the total accumulated defects within a fabric roll relative to its length.
Mills maintain these records on a technical summary sheet to determine whether the material meets contractual quality requirements. Buyers rely on this data to differentiate between acceptable yardage and irregular stock prone to processing failure during garment assembly.
Point Assignment
Inspectors examine linen across a lighted table to spot imperfections while marking them with small adhesive strips. A small hole or thin spot typically carries a single point, while larger flaws earn higher values according to the established size thresholds. This assessment identifies consistent issues in the spinning or loom stages.
Operators aggregate these findings to calculate the total points per hundred square yards of finished cloth. If the total exceeds the agreed threshold, the entire batch moves to secondary sales rather than the primary export channel.
Grade Verification
Standards for mill output differ from those requested by international textile retailers who set their own acceptance limits for incoming shipments. Procurement contracts often specify a maximum penalty point allowance to ensure consistent results during industrial cutting and sewing operations. Production managers use the recorded data to adjust tension settings on finishing equipment or to replace faulty spindles in the spinning phase.
Fibre strength remains independent of surface appearance, but visual consistency determines the market price of the final roll.