Garment shrinkage testing before production in Turkey: a buyer’s wash-test checklist

Start with the product's intended care route

Define how the customer is expected to wash and dry the product and which destination-market care information the buyer intends to approve. A test performed under one temperature and drying route does not automatically answer what will happen under another. The test plan and proposed care instruction should describe compatible conditions.

State the product category, intended use, fabric article, colour, finish and sample revision. If the garment includes lining, rib, binding, elastic or decoration, identify those components because different dimensional behaviour can change the complete product even when the main fabric result appears acceptable.

Choose whether to test fabric, garment or both

A fabric test can support material approval before cutting. A finished-garment test can show how fabric, seams, construction, components and finishing behave together. Decide which question each test must answer rather than treating the two specimens as interchangeable.

Record whether the material comes from a development swatch, proposed bulk lot or finished garment. A result from an earlier article, colour or finish should not silently become the approval for a changed production material.

• Fabric article, colour and finish
• Garment style, size and sample revision
• Test stage and responsible party
• Decision the result must support

Lock the washing and drying procedure

Name the agreed laboratory or buyer procedure and capture its relevant options: machine or hand route, temperature, programme, detergent, load or ballast where applicable, and drying method. ISO 6330 provides standard domestic washing and drying procedures for textile testing; AATCC TM135 addresses dimensional change in fabrics and TM150 addresses garments after home laundering. The buyer should specify the current method and selected conditions appropriate to the programme.

State how many care cycles the report must cover. One cycle and a repeated-cycle programme answer different questions. Do not compare two supplier reports unless their specimen preparation, washing, drying and cycle conditions are equivalent.

Define the measurements before the test

For fabric, mark and record the directions to be measured. For a garment, use named points of measure from the approved specification and identify whether the item is laid flat, closed, relaxed or otherwise prepared. Record the unit, measuring method and any conditioning or waiting period required by the selected procedure.

Take and retain the pre-test values before laundering. The report should show the initial and final measurements, the calculated dimensional change for each direction or point, the sign convention used for shrinkage or growth, and any measurement that could not be assessed reliably.

Review shape and appearance, not only a percentage

Length and width change do not describe every outcome. Inspect twisting or skew, seam puckering, edge rolling, differential movement between panels, loss of symmetry and changes at rib, elastic, lining or closures. Photograph the specimen consistently before and after care when visual evidence will support the decision.

Check print, embroidery, labels and surface finish where they are present on the tested garment. Record colour, texture, cracking, distortion or attachment findings separately from dimensional measurements so one acceptable number does not hide another product issue.

Set product-specific acceptance criteria

There is no responsible universal shrinkage percentage for every fibre, construction, finish, silhouette and care route. The buyer should define limits for the relevant directions or garment measurements in relation to fit, grading, construction and the intended customer experience. Record those limits before reviewing the result.

State who can accept, reject or conditionally approve a result and what a conditional decision requires. If pattern dimensions or finished-garment measurements will be adjusted to account for expected change, identify the revised product-file version and require a confirming sample where appropriate.

Connect the result to pattern, size chart and care information

A wash-test report should trigger a documented product decision. Link it to the fabric approval, pattern revision, finished-measurement chart and sample used for fit approval. When the result changes the garment specification, the updated measurements and tolerance record must become the production reference.

Review care wording and symbols through the buyer's destination-market compliance process. A factory wash result alone does not determine every legal labelling obligation or justify a performance claim. Approve only the wording supported for the particular product and intended market.

Control bulk lots and substitutions

Identify which fabric lot, finish and garment sample the approved result represents. Agree whether a bulk-lot check is required and what evidence must be reviewed before cutting or shipment. Keep the report with the material and sample approvals rather than as an unlinked laboratory attachment.

A change in supplier article, fibre mix, construction, dyeing or finishing can reopen dimensional-stability approval. Define the substitution and retest route in writing so an unavailable material is not replaced on description alone.

Send Konsey Textile a wash-test-ready brief

Konsey Textile's custom and private-label workflows begin from buyer documentation and can coordinate fabric, sample, garment, finishing and quality-control decisions for the specific programme. Send the tech pack, fabric article and colour, proposed care route, measurement chart, required test method and conditions, cycle count, acceptance criteria and the decision deadline.

Ask the team to confirm who will prepare the specimen, where the test will be performed, which report will be returned and which development step depends on the result. Testing responsibility, timing, cost and production implications should be agreed for that order rather than assumed from a general service description.

Use one wash-test decision record

For one jersey top, record the fabric article and lot, garment sample revision, selected wash and drying conditions, cycle count and pre- and post-test measurements. Add the acceptance limits, photographs, reviewer and decision. If the finish changes, the record shows why a new test may be required.

• Specimen, method and care-cycle conditions
• Initial and final dimensional results
• Acceptance decision and affected product revision

Production routes for this brief

• Custom Clothing Manufacturer in Turkey
• Private Label Clothing Manufacturer in Turkey

Review the service directory or send your brief to Konsey Textile.

Related buyer guides

• How to choose a Turkish clothing manufacturer: a buyer’s checklist
• Private-label clothing manufacturer in Turkey: how to write an RFQ
• Custom clothing manufacturing in Turkey: a sample approval checklist