Standard Industrial Inspection Protocols for Greige Fabric Sett Verification
Verify greige fabric sett on tensionless, conditioned swatches under ISO 7211-2 to prevent finished weight deficits and enforce contract chargeback limits.
Filling Picks per Inch
Density Metric
The count of horizontal yarns inserted across the width of a woven fabric determines its weight, structural stability, and production cost. Quality control teams measure filling picks per inch to verify that the woven structure matches the technical specification sheet. This parameter is dictated by the rate at which the fabric is drawn through the loom during weaving.
It represents one of the primary checkpoints in both on-loom monitoring and final fabric inspection.
Loom Regulation
Loom regulation controls this density by adjusting the speed of the take-up mechanism relative to the speed of the insertion mechanism. A slower take-up speed allows more picks to be packed into each inch of fabric, increasing its density and weight. Conversely, a faster take-up speed spreads the picks out, resulting in a lighter and more open weave.
The loom operator must calibrate these settings with precision to ensure that yarn tension does not cause the pick count to fluctuate across the length of the roll.
Fabric Performance
Fabric performance depends directly on the stability of this horizontal yarn density. Insufficient pick counts can lead to seam slippage, where warp yarns slide along the filling yarns under stress, causing the garment seams to fail. In contrast, an excessively high count can make the fabric stiff, reducing its drape and making it difficult to sew.
Maintaining the specified pick density is therefore essential for both mechanical durability and aesthetic quality.
Trade Verification
Trade verification of this count involves the use of a counting glass or an automated thread counter at the inspection table. A discrepancy between the measured count and the contract specification can lead to shipment delays or price adjustments. This measurement is a central element of contractual compliance in textile manufacturing.