SIG entered an strategic partnership with PulPac, the global leader in Dry Molded Fiber technology. Together, the two companies will establish an exclusive development program for the creation and large-scale production of the next generation of paper-based closures for SIG’s aseptic cartons, moving one step closer to SIG’s target to raise the paper content in its aseptic cartons to 90% including closure by 2030.
In its mission to create a fully regenerative food packaging system, SIG is steadily increasing the paper content of its aseptic cartons, to enhance renewability, and further reduce carbon footprints and the use of fossil-based materials. This year, SIG aims to reach an interim target of 85% paper content (excluding closures) and, by 2030, to incorporate paper-based closures to move beyond 90% paper content overall.
PulPac’s Dry Molded Fiber technology is based on forming a dry web of fibers to build cutting-edge responsible solutions instead of creating materials from a fiber slurry. This is resulting in minimized water usage in the molding process alongside several additional benefits like lower CO2 emissions compared to plastic solutions. The technology also offers unparalleled design flexibility and is engineered for high-volume production.
For aseptic carton packs, SIG uses post-application of its closures, only after the products have been filled into the packaging and the cartons have been securely sealed in the aseptic zone of the SIG filling machine. The precise post-application of the closures using closure applicators developed and built by SIG does not interfere with the aseptic process and ensures that the products remain safely protected. This post-application process lays the foundation for a plug-and-play solution of paper-based closures, which in future will be applied to the closed packaging in the same way as plastic closures without changing the production process.
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