Textile and apparel products are among the most commonly sourced goods from China, and they present a unique set of quality challenges. Fabric quality can vary between dye lots, stitching consistency depends on individual operators, and sizing is notoriously subjective. A thorough apparel inspection requires specialized knowledge of textile evaluation, garment construction, and relevant standards.

Fabric Quality Evaluation

Fabric is the foundation of any garment. If the fabric is defective, even the best construction cannot save the product. Fabric quality checks should include:

• Fabric type and composition: Verify that the fabric matches the specified material and fiber content. This often requires laboratory testing for definitive confirmation, but inspectors can perform basic checks like burn tests and visual comparison.
• Fabric weight and thickness: Measure fabric weight (usually in GSM — grams per square meter) and compare against specifications. Significant deviations indicate wrong fabric or quality issues.
• Color and shade matching: Compare production fabric against the approved color standard (usually a Pantone number or approved sample). Use a gray scale for shade rating (ISO 105-A02). Check for side-to-side and end-to-end shading within rolls.
• Visual fabric defects: Check for holes, tears, stains, slubs, broken yarns, misweaves, misprints, and other visual imperfections. The 4-point system is the industry standard for fabric defect grading.
• Hand feel: Compare the feel of production fabric against the approved sample. Differences in softness, stiffness, or drape indicate different fabric composition or finishing.
• Pattern alignment: For patterned fabrics, check that patterns align correctly at seams and that the pattern scale matches the sample.

Garment Construction and Stitching

Construction quality is where most apparel defects occur. Key checkpoints include:

• Stitching quality: Check for skipped stitches, broken stitches, loose threads, uneven stitch density, and tension issues. Every seam should be secure and neat.
• Seam strength: Pull-test critical seams to ensure they do not come apart under normal stress. Seam slippage is a common quality failure.
• Stitch type appropriateness: Verify that the correct stitch types are used for each seam (e.g., overlock for raw edges, chain stitch for stretch, flat-felled for durability).
• Pattern matching: Stripes, plaids, and prints should match at seams. Poor pattern matching is a sign of low-quality cutting and sewing.
• Hems and cuffs: Check that hems are even, clean, and properly finished. No raw edges should be visible.
• Reinforcement at stress points: Pocket openings, zipper flys, button plackets, and shoulder seams should have bartacks or reinforced stitching.
• Trim and accessories: Verify buttons, zippers, snaps, labels, drawstrings, and other trims are correct and securely attached.

Measurement and Sizing

Sizing is one of the most common sources of apparel quality complaints and returns. Each garment must be measured against the size specification sheet with tolerances.

Common measurement points include:

• Chest / bust width
• Shoulder width
• Sleeve length
• Body length (front and back)
• Waist width
• Hip width
• Inseam and outseam length (for pants)
• Collar size

Measurements should be taken with the garment laid flat and without stretching. Spec sheets should include tolerances (commonly +/- 1cm or +/- 0.5 inch depending on the measurement point). It is important to measure multiple samples across all sizes in the size run — a factory may produce size Medium correctly but have issues with size XL, or vice versa.

Common Pitfall: Only Checking One Size

A common mistake in apparel inspection is only checking one or two sizes and assuming the rest are correct. In many cases, the factory uses a different pattern for each size, and grading errors can result in smaller or larger sizes being way off spec while the middle size is fine.

This is especially common with new styles or when a factory is inexperienced with a particular fit. The sample size (usually Medium or Large) might be perfect because it was sewn carefully for the buyer's approval, but the extreme sizes were graded by someone less experienced and contain significant errors.

Best practice: Always include samples from multiple sizes in your inspection, ideally the smallest and largest sizes plus at least one middle size. This catches grading errors that checking only the sample size would miss. If you are working with a new factory or a new style, consider measuring every size in the size run during the first production run.

On-Site Testing for Textiles

While lab testing is needed for comprehensive textile evaluation, several tests can be performed on-site during inspection:

• Rubbing / crock test: Tests color transfer from the fabric when rubbed (dry and wet), using a crockmeter or manual method. Based on ISO 105-X12 / AATCC 8.
• Wash fastness (spot test): A basic check of colorfastness to washing, though full testing requires a lab.
• Seam slippage test: Applies force to a seam to check if the yarns pull apart.
• Bursting strength: For knit fabrics, checks resistance to bursting under pressure.
• Metal detection: Passing garments through a metal detector to check for broken needles, which is both a quality issue and a safety concern.

For critical requirements like flammability, AZO dye content, formaldehyde levels, or fiber content verification, samples should be sent to an accredited laboratory for testing.

Labeling and Packaging

Apparel labeling requirements are extensive and vary by country. Important label checks include:

• Care labels: Must include fiber content, country of origin, care instructions, and RN/CA number (for US/Canada). Permanent and legible.
• Size labels: Correct size designation matching the garment.
• Brand labels: Correct brand label, properly sewn in.
• Hang tags: Correct content, price (if applicable), barcodes.
• Special labels: Flammability warnings (children's sleepwear), "Made in China" country of origin labels, eco-labels.

Conclusion

Apparel and textile inspection requires specialized knowledge of fabrics, garment construction, and textile standards. A general inspector who does not understand the 4-point fabric grading system or cannot assess stitch quality will miss important defects.

If you are sourcing apparel or textiles from China, work with an inspection partner that has dedicated textile and garment inspectors with experience in your product category. Contact QCANT at cs@QCANT.com for professional textile and apparel quality inspection services — our garment inspectors bring decades of combined experience in the apparel manufacturing industry.