Defect category
Fabric Defects
Woven and knit fabric defects visible on inspection frames and light tables before cutting.
Defects in this category
F-01
Slub
- Classification guidance
- buyer defined
- Detection stage
- Incoming fabric inspection before relaxation
Immediate containment
- Identify and segregate the affected roll
- Map the affected length before cutting
Disposition
Compare location and appearance with the buyer defect manual; release, panel-replace or reject only under authorised criteria.
Evidence to retain
- Roll number and metre position
- Inspection-frame observation reference
Common causes
- Uneven yarn thickness
- Yarn contamination
Prevention
- Yarn incoming inspection
- Supplier scorecard
F-02
Shade variation
- Classification guidance
- buyer defined
- Detection stage
- Roll-to-roll shade review and cut-panel audit
Immediate containment
- Quarantine mixed shade groups
- Stop bundle mixing across shade bands
Disposition
Hold affected bundles until shade-band reconciliation and buyer-authorised disposition.
Evidence to retain
- Shade band ID
- Roll and bundle traceability
- Approved shade standard reference
Common causes
- Dye lot difference
- Batch mixing
Prevention
- Shade grouping
- Roll-to-roll shade band control
F-03
Broken end / hole
- Classification guidance
- buyer defined
- Detection stage
- Incoming fabric inspection and cut-panel check
Immediate containment
- Mark and isolate the damaged area
- Trace panels cut from the affected section
Disposition
Classify by size, location and product use under the buyer manual; escalate any possible safety or exposure risk.
Evidence to retain
- Roll map and metre position
- Panel or unit identifier
- Measurement of opening
Common causes
- Warp breakage
- Needle damage in knitting
Prevention
- Loom and knitting machine maintenance
Decision guidance
Prioritise defects by frequency and downstream cost, not by severity alone. Use the causes listed above to drive root-cause analysis and the prevention actions to build standing containment in your process. Verify each corrective action with a post-CAPA audit before closing.