Run Delamination and Tunneling Defect Log — Free

Inspection Context

Inspection date and time recorded

Line, machine, or roll identifier documented

Product, substrate, and laminate structure identified

Inspector name and shift recorded

Inspection stage confirmed

Reference work order, batch, or lot number recorded

Relevant SOP or control plan referenced

Defect Identification

Delamination present critical (required)

Visible separation of bonded layers, edge lift, or loss of adhesion between laminate plies.

Yes No N/A

Tunneling present critical (required)

Channeling, raised lanes, or air paths running through the roll structure.

Yes No N/A

Bubble or blister defects present

Yes No N/A

Wrinkles, waviness, or telescoping present

Yes No N/A

Defect severity rated critical (required)

Note (optional)

Defect location on roll recorded

Record edge, center, lead end, tail end, or measured web position.

Approximate defect length or affected area recorded

Suspected Cause Review

Adhesive mix ratio or coat weight out of target

Check for under-application, over-application, incorrect mix ratio, or uneven adhesive distribution.

Yes No N/A

Web tension or rewind tension out of target

Check for excessive, uneven, or fluctuating tension that could contribute to tunneling or layer separation.

Yes No N/A

Nip pressure, dwell, or lamination temperature out of target

Yes No N/A

Substrate moisture, contamination, or surface energy issue suspected

Yes No N/A

Roll handling, storage, or curing time issue suspected

Yes No N/A

Most likely root cause selected

Corrective Action and Containment

Affected roll placed on hold or quarantined critical (required)

Non-conforming material must be clearly identified and prevented from use or shipment.

Yes No N/A

Immediate process adjustment made

Note (optional)

Corrective action documented with owner and due date

Rework, scrap, or customer notification decision recorded

Note (optional)

Follow-up verification scheduled

Evidence and Attestation

Photo evidence attached for defect and affected area

Measurement or gauge reading recorded if applicable

Inspector attestation completed critical (required)

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Run: Delamination and Tunneling Defect Log

Inspection Context

Defect Identification

Suspected Cause Review

Corrective Action and Containment

Evidence and Attestation

Get your results