Delamination

Problem

The separation of an overlaminate from the print.

Cause 1

Inadequate roller temperature fails to activate adhesive on the overlaminate.

Solution 1

Increase temperature setting on rollers or heat shoes.

Cause 2

Processing speed is too fast, preventing the adhesive from contacting the rollers or heat shoes long enough to achieve activation threshold.

Solution 2

Slow processing speed.

Cause 3

Pressure on the laminating rolls or pull rolls may not be sufficient.

Solution 3

• Increase pressure on laminating rolls.
• Increase pressure on pull rolls.

Cause 4

Failure to seal edges. Combined materials may be too thick for the heat/pressure capability of the laminator.

Solution 4

• Select thinner laminating films.
• Purchase a heavier-duty laminator.