Textile Quality Control: A Buyer’s Checklist

A textile order can meet the agreed price and delivery date and still become a commercial failure if the product does not meet the required quality.

For buyers, textile quality control should therefore begin before production starts, not when finished goods are already packed for shipment.

Effective quality control involves several stages:

• Defining specifications
• Approving samples
• Checking raw materials
• Monitoring production
• Testing performance
• Inspecting finished goods
• Verifying packaging
• Documenting results

The objective is not to create a perfect product with zero variation. Textile manufacturing naturally involves tolerances.

The objective is to ensure that the delivered product remains within the agreed specifications and acceptable quality limits.

If you are still selecting suppliers, first see our guide on How to Verify a Textile Manufacturer Before Ordering.

1. Define Quality Before Production

The first rule of textile quality control is simple:

Quality cannot be inspected into a product if it was never clearly defined.

A buyer cannot reasonably reject a product for failing a requirement that was never communicated.

Before production, the specification should describe the characteristics that matter.

For fabric, this may include:

• Fiber composition
• Construction
• GSM
• Width
• Color
• Stretch
• Shrinkage
• Pilling resistance
• Colorfastness
• Surface appearance
• Finish
• Defect tolerance
• Packaging

For garments:

• Fabric
• Measurements
• Size tolerances
• Stitching
• Seam construction
• Trims
• Labels
• Printing
• Embroidery
• Washing
• Color
• Packaging

For yarn:

• Fiber content
• Yarn count
• Spinning method
• Twist
• Strength
• Evenness
• Hairiness
• Moisture conditions where relevant
• Package weight
• Cone specification

A buyer should therefore think of quality control as beginning with the technical specification, not with the final inspection.

2. Establish Acceptable Tolerances

Textiles are not precision-machined metal components.

Small variations can occur in:

• GSM
• Width
• Shade
• Measurements
• Shrinkage
• Roll length
• Yarn count
• Stitch density

Therefore, specifications should include tolerances where appropriate.

For example:

Target GSM: 180 GSM ±5%

or:

Chest measurement: 52 cm ±1 cm

Without tolerances, a requirement such as:

“180 GSM exactly”

may be unrealistic for commercial textile production.

The correct tolerance depends on:

• Product
• Manufacturing process
• End use
• Buyer standard
• Testing method
• Commercial agreement

The important point is that buyer and supplier agree on the tolerance before bulk production.

3. Approve a Reference Sample

An approved sample can become one of the most important quality references in an order.

Depending on the product, this may be:

• Fabric swatch
• Lab dip
• Strike-off
• Yarn sample
• Garment fit sample
• Size-set sample
• Pre-production sample

For garments, the pre-production sample is particularly important because it should represent the construction intended for bulk production.

Once approved, retain a reference sample whenever practical.

This is sometimes called a:

golden sample

or

approved reference sample.

During later inspection, production can then be compared against something physical rather than relying only on descriptions.

4. Check Raw Materials Before Production

Many quality problems originate in raw materials.

If unsuitable material enters production, correcting the problem later may be expensive or impossible.

For fabric production, raw-material checks may involve:

• Yarn count
• Fiber composition
• Lot consistency
• Color
• Strength
• Contamination

For garment manufacturing, buyers may need to verify:

• Main fabric
• Lining
• Rib
• Zippers
• Buttons
• Elastic
• Thread
• Labels
• Printing materials
• Packaging

The supplier should also separate different material lots where lot variation could affect the final product.

5. Control Fabric GSM

GSM means:

grams per square metre

and represents fabric mass per unit area.

It is one of the most frequently specified textile parameters.

For example:

Single jersey
100% cotton
180 GSM

If production arrives at 150 GSM instead of the agreed 180 GSM, the product may have a significantly different:

• Hand feel
• Opacity
• Durability
• Draping behavior
• Consumption
• Cost

GSM should therefore be checked according to an agreed testing method and tolerance.

We will also prepare a separate detailed guide on Fabric GSM, because this subject deserves its own article.

6. Check Fabric Width

Fabric width affects both quality and garment consumption.

Buyers should distinguish between terms such as:

• Total width
• Finished width
• Usable width
• Tubular width
• Open width

For garment production, usable width can be particularly important.

A fabric may technically measure 180 cm across but have edge areas that cannot effectively be used in cutting.

If usable width is lower than expected, garment fabric consumption may increase.

Therefore width should be measured and documented rather than assumed.

7. Check Fabric Weight and Width Together

Price, GSM and width should not be evaluated independently.

Consider two fabrics:

Fabric A

180 GSM
180 cm usable width

Fabric B

180 GSM
165 cm usable width

Even at the same price per kilogram, these fabrics may generate different garment consumption and cutting efficiency.

This is one reason why supplier quotations should be normalized before selection.

See How to Compare Textile Supplier Quotations for the commercial side of this comparison.

8. Inspect Fabric Appearance

Visual inspection remains an important part of fabric quality control.

Possible defects include:

• Holes
• Stains
• Oil marks
• Broken yarns
• Slubs
• Barre
• Knitting lines
• Weaving faults
• Creases
• Shade variation
• Printing defects
• Uneven finishing
• Contamination

The acceptable defect level depends on the agreement between buyer and supplier.

For roll goods, manufacturers and inspectors may use structured defect-scoring systems such as the 4-Point System to classify visible fabric defects.

The exact inspection method should be agreed before shipment when fabric appearance is commercially important.

9. Check Shade Variation

Color consistency is one of the most common concerns in textile production.

Variation may occur:

• Between dye lots
• Between rolls
• Within a roll
• Between panels
• Between garment batches

This can create serious problems during garment assembly.

For example, two garment panels cut from visibly different shade lots may produce a finished garment with noticeable color variation.

Useful controls include:

• Lab-dip approval
• Dye-lot identification
• Shade grouping
• Roll-to-roll comparison
• Light-box evaluation
• Instrumental color measurement where appropriate

For critical colors, buyer and supplier should agree on how color will be approved.

10. Check Shrinkage

Textile materials can change dimension after washing or finishing.

For example, a T-shirt may look correct before washing but become too short after the first wash.

Shrinkage can affect:

• Fabric width
• Fabric length
• Garment measurements
• Fit
• Pattern calculations

A requirement might state:

Maximum shrinkage after specified washing: 5%

But the washing method must also be defined.

Results can vary depending on:

• Temperature
• Washing cycle
• Detergent
• Drying method
• Number of washes

Therefore a shrinkage requirement without a test method can create ambiguity.

11. Test Colorfastness

Colorfastness describes how well a textile maintains its color under particular conditions.

Depending on the product, relevant tests may include resistance to:

• Washing
• Rubbing
• Perspiration
• Water
• Light
• Chlorinated water
• Seawater

Not every product requires every test.

For example, swimwear and upholstery may have very different performance requirements.

Testing should be selected according to intended use.

12. Check Pilling Performance

Pilling occurs when small fiber balls form on the surface of a textile due to rubbing and wear.

It can significantly affect perceived garment quality.

Products particularly sensitive to pilling concerns may include:

• Knitted fabrics
• Sweaters
• Fleece
• Polyester blends
• Brushed fabrics

A fabric can look excellent when newly produced but deteriorate rapidly during use.

This is why appearance testing can be important for products where surface durability matters.

13. Check Fabric Stretch and Recovery

For stretch fabrics, simply measuring elastane percentage is not enough.

Two fabrics containing:

95% cotton / 5% elastane

can behave differently.

Important properties may include:

• Stretch percentage
• Direction of stretch
• Recovery
• Permanent deformation
• Growth after wear

This is particularly important for:

• Leggings
• Activewear
• Underwear
• Slim-fit garments
• Stretch trousers

A fabric that stretches adequately but fails to recover may lose shape during use.

14. Check Garment Measurements

For garment production, measurement inspection should be based on an agreed size specification.

Common measurement points may include:

• Chest
• Waist
• Hip
• Body length
• Sleeve length
• Shoulder width
• Inseam
• Outseam
• Rise
• Leg opening

Each measurement should have an agreed tolerance.

For example:

The exact tolerances depend on product and buyer requirements.

15. Inspect Stitching and Seams

Garment inspection should include workmanship.

Possible defects include:

• Open seams
• Skipped stitches
• Broken stitches
• Loose threads
• Uneven stitching
• Puckering
• Incorrect seam allowance
• Misaligned panels
• Poor reinforcement
• Incorrect stitch density

Certain areas deserve special attention because they experience greater stress.

Examples include:

• Pocket corners
• Crotch seams
• Armholes
• Waistbands
• Zipper attachments
• Button attachments

The inspection should reflect the actual end use of the garment.

16. Check Printing and Embroidery

Printed or embroidered products require additional quality controls.

For printing:

• Position
• Size
• Color
• Registration
• Coverage
• Cracking
• Adhesion
• Wash durability

For embroidery:

• Position
• Thread color
• Density
• Stitch quality
• Loose threads
• Fabric distortion
• Backing material

The approved artwork and sample should be available during inspection.

17. Check Labels and Branding

Label mistakes can make otherwise acceptable goods commercially unusable.

Check:

• Brand label
• Size label
• Care label
• Fiber composition
• Country-of-origin information where required
• Barcode
• Hangtag
• Product code

Also verify:

• Position
• Spelling
• Language
• Size
• Color
• Orientation

A product can pass physical quality inspection and still fail commercially because of incorrect labeling.

18. Perform In-Process Quality Control

Waiting until production is 100% complete can be risky.

In-process inspection allows problems to be identified while they can still be corrected.

This may occur when:

• Fabric production has started
• Cutting is underway
• Sewing is partially completed
• Printing is in progress

For example, if the first 1,000 garments have an incorrect measurement, identifying the problem before another 20,000 pieces are produced can greatly reduce losses.

Quality control should therefore be viewed as a production process, not merely a final event.

19. Use Final Inspection Before Shipment

Once production is substantially complete, a final inspection can verify whether finished goods meet the order requirements.

A final inspection may include:

• Quantity
• Workmanship
• Measurements
• Appearance
• Function
• Packaging
• Labels
• Carton markings

For significant orders, buyers may use their own quality team or an independent inspection company.

The appropriate level of inspection should reflect order value and risk.

20. Understand AQL Sampling

Large orders are rarely inspected piece by piece.

Instead, statistical sampling may be used.

One commonly used concept is:

AQL — Acceptance Quality Limit

AQL inspection uses a sample drawn from the shipment and evaluates defects according to predetermined criteria.

Defects are commonly classified as:

• Critical
• Major
• Minor

Critical defect

A defect that may present a safety issue or make the product fundamentally unacceptable.

Major defect

A defect likely to cause rejection by the customer or substantially reduce usability.

Minor defect

A defect that does not significantly affect function but falls below the expected workmanship standard.

The sampling plan, inspection level and acceptable limits should be agreed according to the buyer's quality requirements.

AQL should not be interpreted as:

“This percentage of defective products is acceptable in the shipment.”

It is a statistical acceptance-sampling method, not simply a permitted defect percentage.

21. Check Packing Before Shipment

Packaging is part of quality.

For garments, verify:

• Folding
• Individual bag
• Size sticker
• Barcode
• Hangtag
• Assortment
• Carton quantity
• Carton markings

For fabric:

• Roll wrapping
• Roll identification
• Roll length
• Lot number
• Gross/net weight
• Protective packaging

Poor packaging can damage otherwise acceptable goods during transport.

22. Check Quantity

Final quality control should also verify quantity.

Questions include:

• Is total quantity correct?
• Is quantity per color correct?
• Is quantity per size correct?
• Is carton assortment correct?
• Are roll quantities correct?

For garments, an order of 10,000 pieces is not correct if total quantity is correct but the size ratio is wrong.

Therefore quantity verification should be performed by SKU, size, color or other relevant classification.

23. Maintain Traceability

Traceability becomes increasingly important when problems appear after delivery.

Useful information may include:

• Production lot
• Yarn lot
• Dye lot
• Fabric roll number
• Cutting batch
• Production line
• Inspection date
• Carton number

Suppose a buyer discovers a shade problem after delivery.

If every roll and carton can be traced to its production batch, the affected goods may be isolated.

Without traceability, a small problem can force the buyer to investigate the entire order.

24. Keep Inspection Records

Quality control should produce records.

These can include:

• Inspection reports
• Test reports
• Photographs
• Measurement sheets
• Approved samples
• Lab-dip approvals
• Defect records
• Corrective-action reports

Documentation provides evidence of what was inspected and can help identify recurring problems.

It also reduces dependence on memory or informal messaging.

25. Use Laboratory Testing Where Necessary

Visual inspection cannot determine every textile property.

Laboratory testing may be necessary for:

• Fiber composition
• GSM
• Shrinkage
• Colorfastness
• Tensile strength
• Tear strength
• Seam strength
• Pilling
• Abrasion
• Dimensional stability
• Chemical compliance

The appropriate tests depend on the product and market.

Do not test everything simply because a test exists.

Testing should answer a specific quality or compliance requirement.

26. Separate Quality Control From Certification

A certified product can still contain manufacturing defects.

Likewise, a well-made product may still fail a required certification or regulatory requirement.

Therefore:

Certification and quality control are related but different.

Certification may verify compliance with a specific standard or system.

Quality control verifies whether the actual goods meet the buyer's agreed requirements.

Both may be necessary.

27. Do Not Rely Only on Supplier Self-Inspection

Supplier quality control is important.

But for high-value or high-risk orders, independent verification may also be appropriate.

The level of control can increase with:

• Order value
• New supplier relationship
• Product complexity
• Previous quality problems
• Strict retailer requirements
• Tight delivery schedule

A first order from an unknown supplier may justify more inspection than the fiftieth successful order from a long-established supplier.

28. Create a Corrective Action Process

Finding a defect is only useful if it leads to corrective action.

When a problem is identified, determine:

1. What happened?
2. How many products are affected?
3. Why did it happen?
4. Can affected goods be repaired?
5. What process change is required?
6. How will recurrence be prevented?

For example:

Problem: Incorrect garment measurement
Cause: Wrong pattern version used
Correction: Recut affected panels
Prevention: Pattern-version control before cutting

This approach is more useful than simply telling a supplier:

“Quality is bad.”

Specific defects produce specific corrective actions.

29. Build Quality Into the Purchase Order

Important quality requirements should be documented in the commercial agreement or purchase order where appropriate.

The documentation may reference:

• Specification
• Approved sample
• Tolerances
• Testing
• Inspection criteria
• Packaging
• Quantity
• Certification
• Acceptance procedure

This reduces disputes later.

Before reaching this stage, buyers should ensure that the supplier quotation reflects the same requirements.

See How to Request a Textile Quotation: RFQ Guide.

30. Textile Quality Control Checklist

Before production:

• Product specification approved
• Tolerances agreed
• Sample approved
• Color approved
• Materials confirmed
• Labels confirmed
• Testing requirements defined
• Packaging confirmed

During production:

• Raw materials checked
• GSM checked
• Width checked
• Shade monitored
• Measurements checked
• Workmanship inspected
• Production problems corrected

Before shipment:

• Finished goods inspected
• Quantity verified
• Measurements checked
• Defects classified
• Testing completed if required
• Labels checked
• Packaging checked
• Carton markings verified
• Inspection report reviewed

The Most Important Principle

Textile quality control should not be treated as:

Production finished → inspect → hope everything is correct.

A stronger system is:

Specification → Sample → Raw Material Control → Production Control → Testing → Final Inspection → Shipment

Each stage reduces uncertainty before the next stage begins.

The earlier a defect is detected, the easier and less expensive it is usually to correct.

Find Textile Manufacturers and Suppliers

Buyers can browse textile companies on TurkishTextile.org across yarn, fabric, garments, home textiles, accessories, machinery and related textile categories.

If you have a specific requirement, you can also create a buying request describing your:

• Product
• Specification
• Quantity
• Destination
• Quality requirements

For guidance on preparing the request, see How to Write a Textile Buying Request.

A detailed sourcing request makes it easier for suppliers to understand not only what you want to buy, but also what quality level you expect.