Commercial Weight Recalculation Methods for Raw Textile Fiber Import Lots
Commercial weight recalculation adjusts raw fiber invoice mass by adding official contractual moisture regain allowances to laboratory verified oven-dry fiber mass.
Scoured Wool Yield
Cleaned Fibre Percentage
Raw grease wool undergoes a standardized washing procedure to determine the proportion of oven-dry, alcohol-extractable, and ash-free wool fibre present in a given lot. Scoured wool yield identifies the dry mass remaining after the removal of vegetable matter, grease, and dirt through industrial scouring processes. Trading contracts use this metric to establish the clean base price of a consignment upon arrival at a processing mill.
Processing Baseline
Testing facilities extract core samples from bales to simulate the volume of fibre available for spinning after the removal of contaminants. Technicians weigh the samples before and after removing moisture and non-wool impurities through mechanical and chemical means. This calculation provides the basis for financial settlement between the grower and the buyer because grease wool contains heavy loads of natural lanolin and earth.
Laboratory standards prescribe the specific solvent concentrations used to guarantee the removal of all fats from the sample.
Calculation Basis
Variations in climate or farming conditions produce different levels of suint and dust which alter the weight of a raw bale without changing the underlying quantity of usable fibre. Scoured wool yield removes these environmental variables to fix a common denominator for valuation. Mills rely on this dry weight because the presence of moisture artificially inflates the cost per kilogram of the raw material.
Accurate measurement protects the purchaser against paying for waste weight that exits the system during the first wash.
Commercial Impact
Final payment adjustments depend on the comparison between the delivered yield and the estimated quality listed on the shipping manifest. Discrepancies between the laboratory result and the commercial estimate force a reconciliation of the invoice to reflect the actual clean fibre delivered to the floor. The assessment provides the definitive weight used to allocate overhead costs and raw material consumption in the production of finished yarn.
Determining Standard Moisture Regain Values in Raw Textile Fibre Imports
Commercial mass calculations adjust raw import dock weights to certified oven-dry mass plus standard moisture regain values for exact invoice settlement.