Subcontracted Finishing Steps Appearing after the Audit Scope Closes
Subcontracted finishing steps executed outside audited mill boundaries alter fabric fastness, strength, and chemical safety without triggering primary quality controls.
Compacting Over-Feed
Mechanical Adjustment
Precise control of fabric tension during the shrink-proofing process allows for the management of longitudinal dimensions. Utilizing a compacting over-feed involves delivering the fabric into the machine at a higher velocity than the exit rollers to force the loops or yarns into a relaxed state. This technique is fundamental for cotton knitwear where the structural geometry tends to elongate during wet processing and drying.
Mechanism Action
The primary goal is to counteract the stretching that occurs in earlier production stages. When the compacting over-feed is engaged, the excess material is compressed between a feeder roll and a thick rubber belt. This physical compression reorients the fibres.
Dimension Control
Residual shrinkage in the finished garment is directly linked to the success of this mechanical intervention. Proper use of compacting over-feed ensures that the fabric does not contract excessively when the consumer first launders the item. Achieving a zero percent shrinkage rate often requires a specific percentage of over-feed calculated based on the fabric weight and construction.
Production Outcome
The resulting textile exhibits a fuller hand and improved thickness because the density of the stitches increases. While over-feeding improves stability, excessive rates can lead to fabric waving. Regular calibration maintains consistency.