Inline Coating Technology Expands Application Possibilities
Driven by the discussions about recycling targets for plastic packaging, mono-material packaging structures like biaxially oriented polypropylene (BOPP) or polyethylene (BOPE) films, are receiving more and more interest due to better packaging sortability and quality improvement of recycling material.
The future packaging designs of traditionally used aluminum metallized films or aluminum foil demand a transparent barrier solution such as AlOx, SiOx, or EVOH. Here the inline coating technology offers a number of significant advantages for BOPP and BOPE applications.
Key Benefits of Inline Coating
Inline coating technology provides sustainable solutions for the packaging industry that prioritize recyclability and cost efficiency. By applying thin and consistent coatings to BOPP and BOPE films, the technology improves the sortability and quality of recycled materials, thus paving the way for a sustainable future.
Application of Brückner’s Inline Coating Technology
Brückner’s newly developed technology is installed between the machine film orientation (MDO) and the transverse film orientation (TDO). A wet chemical treatment is applied directly inline, providing a tailored base-layer (primer) for the subsequent AlOx/SiOx metallizing step. This technology can be used in regular 3-layer BOPP or BOPE film stretching lines. The metallization layer is perfectly bonded and homogeneously distributed across the entire film width, providing excellent oxygen and water vapor barrier values comparable to high barrier films such as metallized BOPET or aluminum foil.
The coating material is water-based, transparent, and nanoscale (typically < 100nm), resulting in minimal environmental impact and recyclability issues that comply with laws and regulations. Compared to any barrier solution containing EVOH, inline coating is even more economical and stable in the long-term without decay.
Why choose Brückner as supplier?
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