SchäferRolls SUCCES STORY HybriFlex
HybriFlex Pressure Roll Cover in Corona Treatment
Film Manufacturing: Say Goodbye to Backside Treatment!
Preventing unwanted backside treatment while ensuring stable machine operation: The SchäferRolls dual-layer roll cover significantly enhances production performance in the corona treatment of BOPP films.
One of the world’s leading manufacturers of BOPP and specialty films approached us with a challenge: to minimize unwanted backside treatment in the corona station while extending the service life of their pressure roll covers. At the same time, production speed had to remain at the highest level — without increasing roll pressure.
Our Approach: the patented HybriFlex dual-layer pressure roll cover. Thanks to the exceptional damping properties of its compressible inner layer, HybriFlex ensures consistent nip conditions. The highly wear-resistant outer layer provides the ideal foundation for extended service life.
Our Promise: HybriFlex guarantees outstanding durability, stable nip conditions, and smooth operation.
The customer tested the pressure roll cover in production — and the results exceeded expectations. The compressible inner layer of the HybriFlex cover maintains even nip pressure, preventing air gaps between the film web and the corona treatment roll. The result: Minimized backside treatment and maximum corona treatment efficiency — even under the most demanding conditions. The service life of the roll cover has also been significantly extended – at the highest machine speeds and without increased contact pressure.
The film manufacturer is convinced of the performance of the HybriFlex pressure roll cover and is now successfully using it in additional BOPP plants worldwide.
Moreover, the HybriFlex system has already been successfully implemented by other renowned manufacturers of BOPP and specialty films. It has proven its effectiveness in various applications, significantly extending service life and sustainably improving process stability. A leading machinery manufacturer for film production lines has also tested and adopted the system multiple times – a clear indication of its high customer value.
The Results
Improved product quality by avoiding backside treatment
Efficient corona treatment at the highest operating speed and constant contact pressure
Extended service life interval with reliable process stability
Customer
International manufacturer of BOPP and specialty films
Roll Application
Pressure roll in the corona section
Machine Data
Stretching Line
Machine width: 6.800 mm
Product: Specialty films with a thickness range of 12–60 µm
