Why are my laminated items getting heat wrinkles?

Heat wrinkles form when the film hasn’t cooled properly before coming off the back of the machine. You want your laminated document to cool below the melt temperature of the film while it’s still being pulled tight between the rollers—this is the main reason that laminators have fans on them—to cool the item, not to cool the machine down.The fix for heat wrinkles is to slow the machine speed down slightly so that the item has a chance to cool before exiting the back of the machine.