Garment defects list: Common types, causes & solutions

Skipped stitch defect in denim

Introduction`

In my 11 years of experience in Denim Washing and Quality Control at Ha-meem Group, I have seen that 3-5% of garments become defective even after final QC. Defective garments fail to meet buyer specifications for quality, measurement, or safety. For a factory, one defective garment can mean a whole shipment fails. For a buyer like H&M or Zara, it means a claim and a return. In this guide, I will share the real garment defects list that we check in our QC table every day.

Defective garments

Defective garments pose a significant challenge for both manufacturers and consumers in the fashion industry. These garments fall short of meeting the expected standards in terms of quality, safety, or functionality.

While manufacturers strive for excellence and quality control measures aim to minimize defects during production processes, it is inevitable that some defective garments reach consumers. Customers should be aware of these potential issues so they can exercise their rights to replacements or refunds when necessary.

What causes defective garments?

1. Manufacturing Errors (45% defects): Wrong SPI, skipped stitch, needle cut. Mostly happens due to unskilled operators and rushed production.

2. Fabric Defects (30%): We get fabric from the supplier with holes, shading, and GSM variation. If fabric inspection (4-point system) is not done, it goes to cutting.

3. Sizing / Pattern Mistake: In denim, after-wash shrinkage is not calculated properly. A 32 waist becomes 30 after washing.

4. Poor Trims & Accessories: Cheap zipper from local market breaks after 2 washes.

5. No In-line QC: Many factories only do final QC. Defects must be caught in cutting, sewing, and finishing — not at the end.

Skipped stitch defect in denim

Complete garment defects list - 15 common defects (With category)

We divide defects into 3 grades: Critical, Major, and Minor. Buyers never accept Critical defects.

Defect Type

Example

Grade

How to Check

Sewing defects

Skipped Stitch, Open Seam, Uneven Stitching, Puckering

Major

Check seam strength, 7-8 SPI for denim

Fabric defects

Hole, slub, Shading, Crease Mark, Color Bleeding

Major/Critical

4-Point Fabric Inspection

Sizing defects

Out of Tolerance (+/- 1cm), Twisted Leg, Leg Length Difference

Major

Measurement with pattern

Finishing defects

Broken Button, Zipper Wavy, Loose Thread, Dirty Spot

Minor/Major

100% checking at the finishing table

Wash defects

High-Low Shading, Back Staining, Needle Mark

Major

Wash standard vs bulk

Skipped stitch defect in denim

Impact of defective garments - Why must you control it?

1. For the factory: My experience: If a shipment has more than 2.5% AQL failure, the buyer will do a 100% inspection at the factory's cost. That's a $ 2,000- $ 5,000 loss.

2. For brand reputation: One viral video of a broken zipper can destroy a brand.

3. For the environment: In Bangladesh, 5-7% of rejected garments go to the Jhut market or landfill. It's a huge waste.

5 Proven solutions to reduce defective garments (What we do in our factory)

1. Implement 4 QC stages: Don't depend on final QC only. Do: Incoming Fabric QC -> Cut Panel Check -> Inline QC (hourly) -> End Line QC -> Final AQL 2.5.

2. Use a QC check sheet: For each style, make a defect list with photos. Operators will understand better.

3. Train operators on critical defects: I train my operators to identify the top 5 defects of that style before production starts.

4. Maintain needle & machine policy: Change needle every 2 days for denim, maintain SPI. Most skipped stitches happen from a damaged needle.

5. 100% wash approval: Never start bulk wash without buyer-approved wash standard and shrinkage test.

Conclusion

Defective garments can never be 0%, but you can bring them from 10% to under 2% with a proper QC system. The key is to catch defects in the early stage, not in finishing. It poses significant challenges within the fashion industry as they undermine consumer satisfaction, harms brand reputation, and leads to economic losses for businesses involved while negatively impacting the environment through increased waste generation. By addressing root causes such as manufacturing errors or design flaws through enhanced quality control measures, improved supplier collaboration, investment in automation technologies, and thorough testing protocols, the fashion industry can strive to reduce the occurrence of defective garments.

 

FAQs:

What is AQL in garment defects?

A: AQL is Acceptable Quality Limit. Most buyers accept AQL 2.5 for major defects. That means in 100 pcs, a maximum of 2.5% major defects are allowed.

Q: What are critical defects in garments?

A: Critical defects are those that are unsafe for the customer. Examples: a sharp needle left in the garment, a broken needle, and toxic chemicals.

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