Spinning Tolerance
Measured mass per unit length defines how many hanks of eight hundred twenty yards fit into a single pound of wet spun flax during routine production at a Chinese mill. Inspectors rely upon yarn count 14 lea to confirm that wet spinning frames deliver appropriate linear density before wet yarn moves toward sizing vats and weaving looms. Commercial buyers stipulate this precise fineness within purchase contracts to regulate fabric weight and drape characteristics for finished linen shipments.
Production operators check this numerical threshold against reference samples pulled from ring frames during each shift change. Laboratories record measured variations within production control logs attached directly to export bales.
Mill Acceptance
Individual spinning mills apply strict internal tolerances around linear density parameters to maintain consistent yarn geometry across multi ton flax lots. Operators calculate mass deviations against designated limits before raw yarn leaves the spinning floor for subsequent wet processing stages. Export auditors verify these mill records against physical samples drawn at random from packed bundles destined for international markets.
Commercial agreements between Chinese producers and overseas garment houses tie financial settlement directly to these laboratory measurements. Factories discard bobbins exceeding permitted linear variance thresholds before finishing departments receive the material for final washing and softening treatments.
Contractual Boundary
Commercial purchase agreements distinguish between factory process standards and external buyer acceptance criteria during final dispute resolution over sub standard shipments. Buyers reject delivery batches whenever measured linear density deviates beyond agreed contractual limits regardless of internal mill adjustments made during spinning operations. International trade rules determine financial liability when third party laboratories discover mass discrepancies within delivered flax yarn packages.
Mill managers adjust mechanical draft rollers whenever testing reveals systematic drift away from target specifications during continuous wet spinning runs. Commercial arbitration panels rely upon established testing protocols to resolve disagreements regarding yarn mass parameters between producers and purchasing agents.