Quality Control in Apparel Manufacturing: What to Check

Quality control failures are one of the most costly mistakes in clothing manufacturing. A bulk order with significant defects can mean thousands of dollars in losses — return shipping costs, customer refunds, and damaged brand reputation. This guide explains the systematic approach to quality control that protects your business.

The AQL System

The Acceptable Quality Limit (AQL) system is the international standard for sampling-based inspection. It defines how many units to inspect from a batch and the acceptable defect threshold.

**Common AQL levels for apparel:**

How it works: For an order of 1,000 units at AQL 2.5, you would inspect approximately 80 units. If you find more than 5 major defects, the batch fails inspection.

Types of Defects

Critical Defects (Zero Tolerance)

Major Defects (Will Cause Returns)

Minor Defects (Acceptable in Small Numbers)

The Pre-Shipment Inspection Checklist

Workmanship Inspection

1. Examine stitching quality: consistent tension, no skipped stitches

2. Check seam strength: pull test on key seams

3. Inspect all hems: folded correctly, uniform width

4. Examine zipper: opens and closes smoothly, properly attached

5. Check buttons and snaps: properly attached, functional

6. Inspect pockets: properly positioned, fully functional

7. Examine waistband/cuffs: uniform width, properly attached

8. Check label placement: brand, care, size labels correctly positioned

Measurement Verification

Measure 10% of the units in the batch (minimum 10 pieces). Check all critical measurements:

Print and Embroidery Inspection

1. Color accuracy vs. approved Pantone references

2. Placement accuracy vs. approved position spec

3. Print clarity and edge definition

4. Embroidery thread density and coverage

5. Print feel test: properly cured screen print should not crack when flexed

Fabric and Color Inspection

1. Color consistency: batch dye lot variation is normal but should be minimal

2. Fabric defects: holes, snags, shade variation

3. Color fastness: wet rub test (rub damp white cloth firmly against garment)

4. Pilling resistance: visual inspection of high-friction areas

Pre-Production and In-Line Inspection

For large orders, QC should start before final production:

Pre-Production: Verify fabric and trims match specifications before cutting begins. A brief factory visit or fabric swatch approval stage prevents major issues.

In-Line: Inspect 20-30% of units during production. This allows defects to be caught and corrected before the full batch is completed.

Final/Pre-Shipment: Full AQL inspection before goods leave the factory.

Using Third-Party Inspection Services

For brands that cannot inspect in person, third-party QC services provide professional inspection:

Cost: $200-350 per man-day. A typical 1,000-unit inspection takes 1-2 man-days.

Building a Quality Partnership

The most effective quality control is built into the manufacturer relationship, not just enforced at the end. At Mughal Apparel, we:

Contact Mughal Apparel to discuss your quality standards and inspection requirements.