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.
Edge-to-Edge Shade Variance
Color Discrepancy
Textile rolls occasionally display a gradual shift in color intensity or hue across the width of the fabric from one selvage to the other. When garment panels are cut from different parts of such a roll, edge-to-edge shade variance becomes apparent in the assembled clothing. This variation is a critical quality issue in batch dyeing.
Dye houses measure this metric using spectrophotometers to ensure consistency across the fabric width.
Chemical Cause
Uneven temperature distribution or inconsistent squeeze-roller pressure across the dye pad causes the dye to fix unevenly. If the liquid dye resides longer or under more pressure on one side of the fabric, the chemical pickup increases. This imbalance yields a darker hue on one edge.
Visual Effect
The resulting fabric shows a distinct gradient that makes garment parts look mismatched. Garment factories cannot use these rolls for solid-color production without careful panel sorting. Such sorting increases cutting and sewing times.
Control Protocol
Preventing the issue demands uniform pressure across all pad rollers and regular calibration of the heating elements. Technical staff should test the wet pickup at the left, center, and right sections of the dye pad. Consistent flow rate of the dye liquor is also essential.