Establishing Standard Mass Balance Scrap Tolerances across High Count Wet Spun Linen Runs
Fine count wet spun linen mass balance requires deducting 2.5 to 4.5 percent pectin dissolution loss and count-adjusted mechanical scrap from dry input mass.
Unearned Mass Credits
Accounting Discrepancy
Material tracking systems in spinning mills must prevent the inflation of yarn yield records by adjusting for changes in moisture content. In these production records, unearned mass credits occur when a mill records the weight of damp yarn as high-quality fibre output without adjusting for excess water weight. This discrepancy distorts the efficiency records and can lead to weight disputes with international buyers.
Detection Process
Quality control inspectors weigh yarn bobbins after they have been dried to the standard moisture regain percentage. If the yarn has not been dried, the recorded weight will include these unearned mass credits from the water added during wet spinning. The laboratory uses oven dry weight tests to calculate the true dry weight of the yarn batch.
If the yarn moisture is found to be above the twelve percent limit, the accountant subtracts the excess weight from the production totals. This adjustment ensures that the reported yields are based on actual fibre content.
Financial Consequence
Adjusting the production records prevents the mill from overcharging the buyer and violating the shipment contract. The finance manager reviews these weight corrections during the monthly inventory audit. Accurate yield records ensure that the mill operates within its budget.
This step maintains the accuracy of the mill’s financial reports.