Fibre Separation
Processing raw flax straw into distinct constituent parts happens inside the mill facility during mechanical scutching, where fluted iron rollers break the woody core before rotating wooden blades beat away the shattered shive from the linen strands. Production engineers govern residual shive percentages within the line fibre through calibrated striking force, stopping application at the point where excessive blade impact damages ultimate cellulose length.
Grade Classification
Raw material evaluation takes place immediately after line fibre emerges from the machine, separating high tensile grade strands destined for fine wet spinning from shorter tow fractions routed to carded dry spinning systems. Mills record these initial quality tiers inside the batch inspection ledger using specific breaking length thresholds, separating them strictly from subsequent yarn count classifications and woven fabric aesthetic grades.
Buyer Acceptance
Mill quality control documents establish export readiness against specific contractual parameters negotiated prior to shipment, distinguishing internal factory benchmarks from external purchaser tolerance limits. Overseas importers evaluate delivered consignments against agreed moisture regain figures and breaking tenacity limits, rejecting lots that exceed permissible shive contamination levels. Finished linen fabric performance depends entirely upon how effectively this preliminary primary separation removes woody impurities without weakening the underlying plant structure.
