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Table Of Content
    1. Kiefel
    2. News
    3. New recycling options for printed PP films
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    New recycling options for printed PP films

    13 Jan 2022

    Successful thermoforming of films with a recycled component from post-industrial waste.

    The research initiative PrintCYC, of which KIEFEL GmbH is a member, has gained further insights into promoting the circular economy of plastic packaging through material recycling. PU-based printing inks allowed the production of color-stable, odorless and defect-free recyclates from fully printed PP-based packaging films by mechanical material recycling, incorporated into flat films without any problems and deep-drawn on thermoforming machines from Kiefel with lower energy consumption. This will open up new possibilities for recycling post-industrial printed film waste and potential for zero-waste production along the value chain of PP-based packaging for packaging manufacturers.

     

    Alternative to non-food packaging made from virgin material

    Kiefel has successfully thermoformed both colored trays and cups from the recycled PP flat films, on the KMD and KTR series machines. "The machine set-tings practically did not have to be changed from processing of new material," emphasizes Olaf Tanner, Head of Project and Product Management in the Packaging division at Kiefel.
    "The shape, appearance and functionality of the deep-drawn, recycled packaging is so good that it represents a real alternative to non-food packaging made from virgin material."

     

    Energy savings of up to 20%

    In addition, with the increasing proportion of recycled material, savings of up to 20% in heating energy could be observed in the production of deep-drawn PP cups compared to virgin material. This effect can even be further enhanced through the use of dark recyclates due to the better heat absorption. “As a re-sult, we can operate our machines with a shorter heating time,” adds Tanner.

    This opens up interesting possibilities for packaging manufacturers to reduce the proportion of new materials in their containers to contribute to the climate and to save energy.

     

    Production of recycled PP flat films

    The recyclates have also been incorporated up to 100% into the middle layer of ABA flat film structures of different thicknesses (500 μm, 800 μm) without any issues. The use of extrusion technology, equipped with a single screw without degassing or a twin screw with degassing, has proven equally suitable for producing color films free of defects and odors with excellent thickness uniformity and stretchability.

     

    About PrintCYC

    PrintCYC is an initiative along the entire packaging value chain for the recycling of printed films. The consortium utilizes fact-based industrial tests to showcase solutions for a circular economy of printed PP-based packaging films. The initiative includes the machine suppliers Brückner Maschinenbau. Kiefel and PackSys Global, Profol, the specialist for flat films made of PP (polypropylene), the printing ink manufacturer hubergroup Print Solutions, and Erema, the specialist for recycling technology. The initiative is coordinated by Dr. Annett Kaeding-Koppers, an independent consultant for sustainable packaging solutions.

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    Our PDF documents for more detailed information.

    PrintCYC - Neue Recycling-Optionen für bedruckte PP-Folien.pdf

    PrintCYC - Neue Recycling-Optionen für bedruckte PP-Folien.pdf

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    PrintCYC - New recycling options for printed PP films.pdf

    PrintCYC - New recycling options for printed PP films.pdf

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    More News

    News & information from Kiefel

    18 Mar 2025

    Kiefel Employee Sven Engelmann Awarded the Prestigious SPE President’s Cup

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    10 Mar 2025

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    07 Feb 2025

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    19 Nov 2024

    Kiefel strengthens its global market focus with its strategy for the future

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    06 Nov 2024

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    05 Nov 2024

    Kiefel is optimizing its product portfolio and expanding its efficient system business

    Kiefel GmbH, a market leading company for thermoforming and joining technology and member of the Brückner Group, is announcing a structural reorientation and therefore an accompanying consolidation of its sites. 
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    19 Sep 2024

    Sustainability report paves the way for a successful future

    The Brückner Group has published its latest sustainability report. The voluntary report provides a comprehensive overview of environmental, social and governance (ESG) activities in the 2023 fiscal year.
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    02 Sep 2024

    Kiefel the innovation leader under new management: Matt Sieverding becomes CEO

    Kiefel GmbH, a market-leading company for thermoforming and joining technology and a member of the Brückner Group, is undergoing a change in management: Matthias Sieverding, previously CEO/President of the Brückner Group’s USA platform company,...
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    13 May 2024

    Innovation and Success at Chinaplas 2024

    Thousands of visitors, a successful presentation of our new automation solution and signing ceremonies marked our presence at Chinaplas 2024, Asia's largest plastics and rubber trade fair.
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    07 Mar 2024

    First Packaging Dialogue Day Asia-Pacific: successful event with Kiefel's turnkey solutions

    In a groundbreaking event, Kiefel, turnkey solution provider in the Asia-Pacific region, recently hosted the first-ever Packaging Dialogue Day at the new Brueckner Group Asia-Pacific facility in Rayong, Thailand.
    Find out more
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