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Clear Re-Tort Packaging Via Extrusion Lamination, 2009 Flexible Packaging - Trends & Technology Development Symposium
Clear Re-Tort Packaging Via Extrusion Lamination, 2009 Flexible Packaging - Trends & Technology Development Symposium
Books
Handbook of Paper & Paperboard Packaging Technology, 2nd Ed.
Handbook of Paper & Paperboard Packaging Technology, 2nd Ed.
Conference papers
Specialty Paper Opportunities in Flexible Packaging, 2006 PLACE Conference
Specialty Paper Opportunities in Flexible Packaging, 2006 PLACE Conference
Conference papers
Neck-in and edge forming phenomenon in extrusion coating - U
Neck-in and edge forming phenomenon in extrusion coating - Utilisation of representative non-dimensional numbers, 2017 European PLACE Conference
Blown Film Extrusion, It Starts Here, 2010 PLACE Conference
Blown Film Extrusion, It Starts Here, 2010 PLACE Conference
STATUS & POTENTIAL FLEXIBLE PACKAGING IN INDIA, 2009 Flexible Packaging - Trends & Technology Development Symposium
STATUS & POTENTIAL FLEXIBLE PACKAGING IN INDIA, 2009 Flexible Packaging - Trends & Technology Development Symposium
Strengths and Weaknesses in the Packaging Industry Around the World, 2009 Flexible Packaging - Trends & Technology Development Symposium
Strengths and Weaknesses in the Packaging Industry Around the World, 2009 Flexible Packaging - Trends & Technology Development Symposium
Journal articles
Data-efficient determination of machine-specific process windows in thermoforming using the example of PCR materials, TAPPI Journal July 2025
ABSTRACT: In an industrial context, process windows for thermoplastics in thermoforming processes are still often determined through time-consuming trial-and-error approaches. This results in increased effort when commissioning new machines, implementing new technologies, or substituting sheet materials. One key reason is the lack of methods that allow for efficient, process-related assessment of material behavior and a quantitative definition of a “target state” of the heated sheet in relation to geometry and process conditions. In this study, we present the In-Situ Thermoforming Characterization (ITC) method as an application-oriented approach that enables format-independent evaluation of material behavior directly within the forming station of a thermoforming system. The method was successfully applied to a material substitution case, replacing conventional virgin polypropylene (PP) with post-consumer recyclate (PCR) — in this case, recycled PP (rPP) — in the production of a defined cup geometry. The results enabled the transfer of existing process knowledge from the virgin material to the recyclate, thereby accelerating material qualification. Based on the collected data, material behavior under process conditions could be mapped within the design space, making it possible to identify machine settings that deliver equivalent forming results in our test setup. Overall, the method shows strong potential for efficient and precise determination of machine-specific process windows.
Atomic Layer Deposition Process for Barrier Applications of Flexible Packaging, 2010 PLACE Conference
Atomic Layer Deposition Process for Barrier Applications of Flexible Packaging, 2010 PLACE Conference
Journal articles
Local delamination in pharmaceutical blister packages • A thermomechanical theory on buckling of heat-sealed composite laminates in flexible packaging, TAPPI Journal July 2025
ABSTRACT: Pharmaceutical blister packages consist of cavities made from a thick polymeric form foil and a thin aluminum lid foil. Heat-sealing technology is usually used to bond the lid foil to the form foil. Occasionally, the sealed area shows buckling defects of the lid foil, which allow contamination to enter into the cavity. A contaminated product is a worst-case scenario for pharmaceutical production and must be avoided. We discuss a thermomechanical theory on buckling defects in blister packages and derive strategies to avoid these. The theory is based on the assumption that the seal of a blister packaging behaves like a laminate of thin composite layers under compressive load. Literature research on buckling of thin laminated films, thermal behavior of polymers, and seal strength of heat-sealed polymers provides the technical and physical background to elaborate the theory. The theory comprises three elements: an initial condition regarding thermal load and precedent defects; a buckling condition; and a crack propagation condition. The plausibility of the theory is verified using model calculations and heat-seal tests. The paper concludes with strategies against buckling of heat-sealed lid foils and an outlook on other applications in laminating and coating of polymer films.