The first step for quality control is to understand, establish & accept the customers' quality requirements.
Shade Matching, Fabric Construction, GSM (grams per square metre), Whales & courses if required, Diameter, Dyeing Levelness.
Packing & Assortment, Fabric Defects, Workmanship Defects, General Defects, Measurement Deviations.
It has various AQL levels from 0.040 to 25 for Accepting or Rejecting the lots. Normally for Garment industry, the AQL levels of 2.5, 4.0 and 6.5 are followed.
Checking cutting quality, patterns, cut parts, sewing process, do 100% inspection of stitched pieces and move quality garment for finishing.
All the above checks are necessary to avoid failure of final inspection, rejection of shipments and control over manufacturing cost.