Quantifying Anti Friction Lubricant Protection Limits for Elastane Cores under High Drag Jet Processing
Sustaining a 1.8 percent ester lubricant film on elastane cores prevents elastomeric rupture when jet nozzle pressure exceeds 2.2 bar.
Yield Retention
Efficiency Metric
Ratio of finished fabric weight or area to the starting greige fabric input during wet processing and finishing operations defines the primary measure of yield efficiency in textile mills. Maintaining high yield retention is essential for mill profitability, as it minimizes fabric loss and waste during scouring, bleaching, and dyeing. This metric is tracked for every production batch.
Processing Shrinkage
Fabric loses weight during preparation due to the removal of natural waxes, oils, and sizing starch. If the processing tension is too high, the fabric will stretch in length but shrink in width, reducing the yield retention of the batch. Finishing mills use stenters to control the finished width and weight of the fabric.
Cost Management
Textile contracts are often based on a specific finished weight per square meter or linear yard. A low yield retention means the mill must use more raw material to produce the contracted volume of finished fabric. This increase in production cost directly reduces the profit margin of the mill.
Quality Control
Quality teams measure the fabric weight and width at the end of the finishing line to calculate this metric. Comparing the finished measurements to the greige input determines the yield retention of the run. Adjusting the stenter settings and overfeed ratios helps optimize this value and ensures the fabric meets buyer specifications.