Translating Metric Fibre Number into Wet Spun Line Yarn Limits
Metric fibre number defines wet-spun line yarn limits by establishing the minimum cross-sectional elementary fibre count required to sustain drafting tension.
Bast Ribbon Division
Fibre Sorting
Industrial grading protocols categorize raw flax harvests by length, tensile strength and residual moisture before mechanical separation begins on the mill floor. Bast Ribbon Division designates the primary sorting stage where workers evaluate harvested stems by natural color and stalk diameter prior to retting tanks. Raw material batches move across wooden sorting tables under standardized northern daylight illumination to ensure color consistency across export lots.
Inspectors pull five stems from every bundle to test breaking strain using a hand-held tensiometer calibrated in newtons. Moisture meters inserted at three points along each selected stalk must read below fourteen percent before the batch passes to the retting vats. Stems failing the moisture threshold return to drying racks for twenty four hours regardless of production schedules.
Grade Differentiation
Mill operators separate raw fibre grades from finished cloth classifications because processing alters physical properties entirely. Bast Ribbon Division records appear in the batch ledger alongside supplier identification numbers and field origin codes. Buyer acceptance criteria demand zero foreign matter inclusion, whereas internal mill standards tolerate up to one percent residual cortical tissue by dry weight.
Inspectors reject lots containing mildew staining regardless of tensile measurements because fungal degradation weakens subsequent spinning performance. Looms process finished yarn according to thread count density per square centimeter, a metric entirely disconnected from raw stalk diameter evaluations. Mill managers sign daily inventory sheets confirming that sorting parameters match purchase contract specifications before releasing material to the breaking machines.
Export Documentation
Customs declarations require exact botanical classifications to satisfy international agricultural trade regulations governing natural textile fibers. Bast Ribbon Division metrics supply the baseline tonnage figures entered into shipping manifests destined for overseas spinning mills. Port inspectors review the accompanying inspection certificate to verify that moisture content declarations match actual cargo conditions upon loading.
Shipping clerks archive carbon copies of the original grading sheets for five years to satisfy regulatory compliance audits conducted by trade ministries. Foreign buyers inspect receiving dock samples against these archived records to settle financial disputes concerning material quality discrepancies.