Wrinkles are occasionally observed when using self-wound overlaminate films. Unfortunately understanding and troubleshooting the causes of wrinkles is a complex proposition. Any or all of the issues listed below may cause wrinkles during web handling.
- Gauge variation of the web
- Uneven roll tension (wind) from core to outer wrap
- Variations in temperature and humidity
- Roller misalignment and/or imbalance
- Long, unsupported web lengths
- Machine vibration