Corona Treater Dyne Level Verification Log

Inspection log for recording surface dyne readings on corona-treated film to verify adequate surface energy for ink and adhesive adhesion before printing or lamination.

Inspection Details

• Inspection date and time
• Production line or asset ID
• Film grade / material description
• Downstream process
• Reference SOP or work instruction

Film and Treatment Identification

• Roll, lot, or batch number
• Treatment side identified and marked
• Corona treatment applied on correct side
• Line speed at time of treatment
• Treatment settings or power level recorded

Dyne Readings and Surface Energy

• Target dyne level for this job
• Dyne reading at left edge
• Dyne reading at center
• Dyne reading at right edge
• Readings are uniform across the web
• Surface energy meets minimum requirement for adhesion
  Confirm the treated surface is at least 8-10 mN/m above the ink or adhesive surface tension target used for the job.

Condition, Deficiencies, and Corrective Action

• Any deficiency or non-conformance observed
• Corrective action taken
• Retest performed after adjustment
• Retest dyne reading

Closeout and Attestation

• Film released for printing or lamination
• Inspector signature
• Supervisor review required