Before bulk production, record the fabric reference, what has been approved and which stage can proceed. Construction, color and prototype performance may need separate decisions. A lab dip can settle the color choice while fit or usable width remains open.
The physical sample belongs with its written record, including the specification revision, sample date and person responsible for each decision. That record is what the supplier and buyer can return to if a later delivery differs.
Identify the purpose of each sample
Use sample names consistently with the supplier. The following working categories help separate decisions; agree the names and sequence that apply to your order.
| Sample purpose | Decision it supports | Evidence still needed |
|---|---|---|
| Construction or quality reference | Material appearance, handle and proposed structure | Checks on the later production lot |
| Lab dip | Color development on an identified substrate | Other required properties and bulk color checks |
| Prototype or development yardage | Cutting, sewing, fit and component behavior | Inspection of the final shipment |
| Production-lot sample | Checks on the identified sampled material | Agreed sampling basis for any lot-level conclusion |
CottonWorks describes lab dips as a color-development and approval step and notes that scaling a formula into production can involve adjustments. Keep color approval connected to the actual substrate and later production checks. CottonWorks Lab Dip Process
Check appearance under agreed conditions
Compare the submitted sample with the retained reference using consistent viewing conditions. Record face and reverse, opening pattern, visible defects and the intended color reference. For a mesh, include the background or adjacent material when judging show-through.
Lighting matters in color assessment. CottonWorks identifies the object, illumination and observer as factors in color perception. A photograph viewed on two different screens is therefore an incomplete approval basis when color matching is critical. CottonWorks Dyeing Basics
Specify who can approve a color deviation and retain the accepted reference. A reply such as looks fine needs the sample code and approval scope beside it.
Check dimensions and function separately
Confirm the proposed composition, GSM and usable width against the fabric specification, then evaluate the properties that matter to the finished component. Mark each result as a supplied declaration, an internal development observation or a laboratory result.
For washable products, assess the relevant care behavior. AATCC TM135 addresses length and width changes after home laundering. Agree the washing and drying conditions before interpreting a result; a single unspecified shrinkage figure is not enough to compare samples. AATCC TM135
Make a prototype with the intended seams, binding and adjacent materials where those affect performance. Record whether the approval covers the fabric alone or the assembled component, and identify any changes needed before production.
Agree how production will be checked
Separate visual grading, laboratory testing and lot sampling. ASTM D5430 addresses examining and grading fabric visually. ISO 2859-1 addresses attribute-based acceptance sampling. Record their findings separately so a visual grade and a sampling decision remain understandable. ASTM D5430, ISO 2859-1
For the actual order, agree the inspection unit, defect definitions, sample selection, acceptance rules and handling of failed results. If using a point-grading method, specify the method and threshold. If using an AQL-based plan, have the responsible quality professional define the applicable plan rather than copying an AQL number without its context.
Report the inspected sample or lot scope clearly; sample-based approval is not a claim that every meter was examined.
Record approval and manage changes
Use a short approval record containing:
- Fabric, color, finish and specification revision.
- Physical sample identifiers and retained-sample locations.
- Approved characteristics and their acceptance criteria.
- Test or inspection references, with results and unresolved exceptions.
- Approver, date and the stage authorized to proceed.
- Changes that require another approval.
An unresolved exception should name the next action and its owner. If production is allowed to proceed with a specific exception, record that decision clearly instead of presenting an unconditional approval.
Before shipment, link the inspection evidence to the relevant lots. On receipt, check the delivered identifiers and quantities against the order and retain the agreed evidence for any discrepancy.