Apparel Quality Control: What Every Buyer Should Check
A factory-level quality control checklist for garment orders. Catch defects before they ship — not after.
Quality control in apparel isn't just about checking for loose threads. A proper QC process catches issues at four stages of production.
Stage 1: Pre-Production (Fabric & Trim Check)
Before cutting begins, verify:
- **Fabric weight** — Use a GSM scale to confirm the fabric matches the spec
- **Color consistency** — Check dye lot numbers across all rolls of fabric
- **Shrinkage** — Wash test a fabric sample to confirm shrinkage rates
- **Trim verification** — Thread, zippers, buttons, labels all match the spec sheet
Stage 2: In-Line Production (During Cutting & Sewing)
While garments are being made:
- **Cutting accuracy** — Are pattern pieces aligned with the grain line?
- **Stitch quality** — Stitches per inch (SPI): 8-12 for most garments
- **Seam strength** — Pull test to check for seam slippage
- **Size grading** — Random check that each size matches the measurement spec
Stage 3: Final Random Inspection (AQL)
Before shipment, inspect a random sample using AQL (Acceptable Quality Limit):
| Order Quantity | Sample Size | Critical Defects | Major Defects | Minor Defects |
|----------------|-------------|------------------|---------------|---------------|
| 50-100 | 5 | 0 | 1 | 2 |
| 101-500 | 20 | 0 | 2 | 4 |
| 501-1000 | 32 | 0 | 3 | 5 |
| 1000+ | 80 | 0 | 5 | 7 |
Defect Classification
- **Critical:** Safety hazard, holes, chemical smell — zero tolerance
- **Major:** Wrong size, color mismatch, crooked print, broken zipper
- **Minor:** Loose thread, slightly crooked label, 1/4" off in length
Stage 4: Pre-Shipment Check
Final verification before the container is sealed:
- Quantity count vs. packing list
- Carton weight and dimensions
- Label placement and barcode readability
- Poly bag quality and carton condition
How BOAZ Handles QC
Every order goes through these four stages. We provide photos and video at each stage. Third-party inspection firms (SGS, Bureau Veritas) are welcome at the factory at any time.
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