Kilos in against Metres out at a Jiangsu Mill Audit
Reconciling raw European flax dry mass against finished fabric metres out exposes certified fiber dilution, protecting buyers from origin fraud in Jiangsu mills.
Hackling Comb Loss
Fibre Waste
Hackling comb loss identifies the fraction of raw flax line fibre converted into shorter tow or dust during the mechanical alignment process. Operators measure this parameter at the hackling machine as the disparity between the input weight of stricks and the total yield of cleaned line fibre. High percentages signal excessive breakage of long fibres caused by blunt pins or incorrect spacing within the comb beds.
Production Variance
Internal quality management records this data point for each batch to monitor the mechanical condition of the pins and the setting of the feed speed. Technicians adjust the pressure and the rotational velocity of the drums when the weight of the short fibre fraction deviates from the expected baseline for a specific quality of raw flax. This adjustment protects the value of the final line fibre while keeping the production of low-value tow within prescribed limits.
Economic Consequence
Direct financial impact flows from this metric because line fibre holds a substantially higher market valuation than hackled tow. Mills calculate the cumulative loss across a full shift to determine the operational efficiency of the dressing line and the necessity for immediate pin replacement. Consistent management of this extraction rate prevents the degradation of long fibre lots during the cleaning stage and ensures that the final output meets the specifications required for high-speed spinning frames.