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Journal articles
Packaging and extrusion technologies share conference spotlight, TAPPI JOURNAL, December 1996, Vol. 79(12)
Packaging and extrusion technologies share conference spotlight, TAPPI JOURNAL, December 1996, Vol. 79(12)
Journal articles
Alpha tocopherol as an antioxidant for extrusion coating polymers, TAPPI JOURNAL, April 1995, Vol. 78(4)
Alpha tocopherol as an antioxidant for extrusion coating polymers, TAPPI JOURNAL, April 1995, Vol. 78(4)
Journal articles
Characterization of vapor deposited aluminum coatings on oriented polypropylene films, TAPPI JOURNAL, April 1994, Vol. 77(4)
Characterization of vapor deposited aluminum coatings on oriented polypropylene films, TAPPI JOURNAL, April 1994, Vol. 77(4)
Journal articles
Starch-based hot melts for adhesive applications, TAPPI JOURNAL, September 1994, Vol. 77(9)
Starch-based hot melts for adhesive applications, TAPPI JOURNAL, September 1994, Vol. 77(9)
Journal articles
The ball is in your court The CONEG Challenge and industryâ??s response
The ball is in your court The CONEG Challenge and industry’s response
Journal articles
Measurement and control of biaxially oriented films for coating, laminating, and packaging applications, TAPPI JOURNAL, April 1993, Vol. 76(4)
Measurement and control of biaxially oriented films for coating, laminating, and packaging applications, TAPPI JOURNAL, April 1993, Vol. 76(4)
Journal articles
The role of specific gravity for removal of hot melt adhesives in recyclable grades, TAPPI JOURNAL, September 1992, Vol. 75(9)
The role of specific gravity for removal of hot melt adhesives in recyclable grades, TAPPI JOURNAL, September 1992, Vol. 75(9)
Journal articles
Accelerated electron-cured, hot melt pressure-sensitive adhesives provide improved plasticizer and heat resistance, TAPPI JOURNAL, February 1991, Vol. 74(2)
Accelerated electron-cured, hot melt pressure-sensitive adhesives provide improved plasticizer and heat resistance, TAPPI JOURNAL, February 1991, Vol. 74(2)
Journal articles
The evolution of conductive coatings, TAPPI JOURNAL, December 1990, Vol. 73(12)
The evolution of conductive coatings, TAPPI JOURNAL, December 1990, Vol. 73(12)
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.