The Importance of Quality Control in Garment Manufacturing
- Pitsinee Pannasuriyaporn
- Oct 29
- 2 min read
In the garment industry, Quality Control (QC) plays a crucial role in ensuring that every product leaving the factory meets consistent standards of quality, safety, and customer satisfaction.
Quality inspection is not only performed at the final stage but begins from the selection of raw materials and continues through every step until the final packaging and shipment.
1. Fabric Inspection
Before cutting, fabrics are carefully checked for:
Shrinkage Test: Fabrics are washed and measured to determine shrinkage percentage. If it exceeds 3–5%, the lot must be pre-shrunk or replaced.
Purpose: To prevent garments from shrinking after washing.
Color Check: Using a Color Light Box, colors are compared with the approved “Lab Dip” or “Color Standard.”
Purpose: To maintain consistent color across all fabric lots under different lighting conditions.
Fabric Defect Check: Detects stains, pulled yarns, holes, or uneven dyeing before cutting.

2. Pre-Production Check
Before mass production, QC inspects logos, embroidery, prints, colors, and positions to match the approved PPS (Pre-Production Sample).
Verify logo position according to the Tech Pack.
Confirm colors and artwork according to the Pantone reference.
Ensure embroidery/print surface is smooth, not wrinkled or peeling.
Purpose: To prevent large-scale production errors before sewing begins.

3. In-Line Inspection
QC conducts random inspections during sewing to maintain consistent standards.
Check seam appearance and stitching strength.
Measure garment dimensions to match specifications.
Reconfirm embroidery or logo placement accuracy.
4. Final QC (100%)
After sewing, every piece is checked before ironing and packing.
Measure garments within the approved tolerance range.
Check cleanliness, stains, or oil marks.
Inspect seams, labels, and overall workmanship.

5. Needle Detection
Before packing, all garments pass through a Needle Detector Machine to ensure no metal fragments such as broken needles remain inside.
Purpose: To ensure safety for end users — a requirement especially important for exports to Japan, Korea, and Europe.
Quality control in garment manufacturing requires attention to detail at every step — from fabrics to finishing. A strong QC system reduces defects, builds customer confidence, and ensures long-term satisfaction.

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