Defect category

Fabric Defects

Woven and knit fabric defects visible on inspection frames and light tables before cutting.

By Sanjeewa Dehiwalage · Reviewed

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.

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