Linear Density
Measurement of mass per unit length defines the physical coarseness of a continuous filament or yarn strand. A decitex rating quantifies the specific weight in grams of ten thousand metres of material. Precision in this calculation relies on consistent moisture regain values because water weight distorts the final mass result.
Standard laboratory testing protocols require a controlled atmosphere to ensure the weight reflected on the scale represents the fibre substance alone rather than environmental humidity.
Production Verification
Spinning mills employ this metric during the drafting process to ensure the extruded flax fibre maintains uniformity throughout the batch. Quality control officers check the decitex rating against the technical specification sheet provided by the buyer to confirm the yarn thickness meets the loom requirements for specific fabric densities. Deviation beyond the tolerance limit causes uneven tension during warping or mechanical failure during high speed weaving cycles.
Adjustments to the drawing frame rollers rectify these discrepancies before the material moves to the winding stage.
Acceptance Criteria
Commercial contracts for linen trade designate the acceptable range for this measurement to prevent inconsistencies in finished cloth weight or handle. Export documentation includes the verified mean value from the final spinning stage to provide traceability for the end buyer. Buyers perform independent audits upon receipt of the shipment to verify that the delivered weight matches the mill certificate.
Large variances between the mill record and the buyer test result trigger a revaluation of the lot quality or a price adjustment based on the actual material content. This rating provides the primary quantitative baseline for settling quality disputes between processors and manufacturers.
