Linear Density
Length per unit mass defines the fineness of flax yarn across international spinning standards. The metric count system designates the number of thousand-meter lengths contained within a single kilogram of fibre. High values denote thinner, more refined yarns suitable for fine shirting, whereas low values identify heavy, coarse threads used in industrial sacking or canvas.
Spinning mills calibrate their production machines to this inverse ratio to maintain consistency across output batches.
Production Verification
Lab technicians measure samples under controlled humidity to ensure the moisture regain level remains constant during weighing. Flax fibres expand or contract based on ambient air, so the weight assessment requires a standardized drying procedure before calculation. Inspectors compare the recorded metric count against the buyer specification document provided in the initial contract.
Discrepancies at this stage trigger an immediate adjustment to the drafting rollers on the spinning frame.
Commercial Application
Buyers use the classification to determine price points and structural performance for specific woven textiles. Yarns with higher counts command a premium because of the additional processing time and raw material selection required for production. Mills document these figures on shipping manifests to confirm the identity of goods during transit and customs inspection.
Accurate numerical assignment dictates the tensile strength and drape of the finished cloth product.