
Wide Range of Applications
Technical films are becoming increasingly popular because without them, many everyday and future-oriented applications would not exist: Displays and screens, cell phones, electric vehicles, printed electronics, insulation for cables and wires, membrane switches in motors and transformers, stationary energy storage or solar cells. Electromobility applications are the major drivers in this area, requiring new line concepts – often specially customized – for the production of various high-tech films. Our simultaneous technology (LISIM®) in particular, in which the film is stretched in both directions at the same time, is particularly well suited for applications with demanding technical requirements. This is used, for example, for ultra-thin films with thicknesses of just a few micrometers (thousandths of a millimeter).
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Our Technical Solutions
Battery Separator Films
Batteries provide the energy for many everyday applications, such as cell phones, laptops and notebooks, mobile household or garden appliances and electric vehicles. They are also necessary for stationary energy storage. Separator films play a crucial role in the production of batteries and have a number of advantages:
high puncture resistance
controlled ion flow for higher performance and energy efficiency
complies with national and international regulations

Capacitor Films
Renewable and alternative energies, electromobility and its charging infrastructure, automation and digitalization go hand in hand with a growing demand for high-performance capacitors, especially in the field of ultra-thin and ultra-high temperature electronic capacitors. PP capacitors produced on our lines have valuable properties:
frequency and temperature independence
high pulse stability
high breakdown voltage
producible in the thinnest thicknesses below 3µm

Composite Current Collector Film
Composite current collector films represent a technological approach for advanced battery systems. Depending on the battery design, they can help support certain safety-related requirements while also influencing characteristics such as energy density, throughput, and system stability. Compared to conventional aluminum or copper current collectors, these films offer several potential advantages:
high puncture resistance
increased energy density by up to 10 %
raw material savings of copper aluminum for significant reduction in CO2 emissions

Optical Films
Polyester film is used in a wide range of optical applications with sensitive surface requirements, including touch panel substrates, reflective films, and protective films. We offer solutions with special coating technologies, including for high-quality cleanroom technology, that offer various advantages:
scratch-free surfaces for efficient productivity
high transparency for high-quality optical applications
good adhesion to various substrate layers

Solar Backsheets
The backsheet is a protective layer on the back of solar cell modules. It helps protect the module from moisture and other environmental influences while supporting the long-term functionality of the solar panel. Our latest highlight: lines for the production of durable films for outdoor use.

Flexible Electronics and Printed Circuit Boards
Flexible hybrid electronics offer new possibilities for many “smart” products such as organic displays and photovoltaics, medical sensors and printed batteries. The production of the films required for these applications must meet strict standards to ensure the required properties:
specific surface properties for ultra-high barrier
very good mechanical properties
suitability for clean room environments

Industrial Films
Industrial films are a fundamental component in a wide variety of applications: insulation, membrane switches in motors and transformers, protective and separating films and motor insulation films are just a few examples. The manufacturing and designing of the necessary stretching lines requires meeting the specific technical requirements of various industries.

Beyond the Headlines
Explore developments, technologies, and projects that are transforming industries and unlocking new opportunities.


Entire Technology Expands Optical Film Capacity with Second Brückner Line

Boheng Starts up its First Brückner BOPET Optical Film Line
