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Journal articles
Technical evaluation: methods for sealing paper/foil aseptic food packages, TAPPI JOURNAL, June 1997, Vol. 80(6)
Technical evaluation: methods for sealing paper/foil aseptic food packages, TAPPI JOURNAL, June 1997, Vol. 80(6)
Journal articles
A comparison of the oil, oxygen, and water-vapor permeation rates of various polyethylene blown films, TAPPI JOURNAL, March 1997, Vol. 80(3)
A comparison of the oil, oxygen, and water-vapor permeation rates of various polyethylene blown films, TAPPI JOURNAL, March 1997, Vol. 80(3)
Journal articles
Study of corrugated liner paper and bondability by hot-melt adhesives, TAPPI JOURNAL, September 1997, Vol. 80(9)
Study of corrugated liner paper and bondability by hot-melt adhesives, TAPPI JOURNAL, September 1997, Vol. 80(9)
Journal articles
The roll of hot melt adhesives in sift-proof sealing, TAPPI JOURNAL, April 1998, Vol. 81(4)
The roll of hot melt adhesives in sift-proof sealing, TAPPI JOURNAL, April 1998, Vol. 81(4)
Journal articles
Editorial: Design considerations for developing high-quality flexible packaging laminates, TAPPI Journal July 2025
ABSTRACT: The global flexible packaging industry has constantly evolved by developing new materials, film design, polymer processing techniques, and machinery to overcome challenges posed by consumer demands, regulation, and societal pressure. While achieving superior quality and improved mechanical film attributes has always been the cornerstone for new technical developments in this industry, the end-of life shortcoming for most plastic films has driven the value chain to strive harder to design and develop sustainable packaging structures.
Journal articles
19th European PLACE Conference highlights challenges of balancing sustainability with product protection, TAPPI Journal July 2025
ABSTRACT: The European PLACE (Polymers, Laminates, Adhesives, Coatings and Extrusion) Committee was founded in 2023 with the goal of continuing a biennial conference for the flexible packaging and converting industry, including converters, OEMs, raw materials suppliers, and academia. Previous iterations of the PLACE Conference were organized by TAPPI, but the new European Place Committee has now found a home within bdvi e.V. (Bund Deutscher Verpackungsingenieure), which is the Association of German Packaging Engineers, a registered nonprofit organization.
Journal articles
Editorial: Design considerations for developing high-quality flexible packaging laminates, TAPPI Journal July 2025
ABSTRACT: The global flexible packaging industry has constantly evolved by developing new materials, film design, polymer processing techniques, and machinery to overcome challenges posed by consumer demands, regulation, and societal pressure. While achieving superior quality and improved mechanical film attributes has always been the cornerstone for new technical developments in this industry, the end-of life shortcoming for most plastic films has driven the value chain to strive harder to design and develop sustainable packaging structures.
Journal articles
19th European PLACE Conference highlights challenges of balancing sustainability with product protection, TAPPI Journal July 2025
ABSTRACT: The European PLACE (Polymers, Laminates, Adhesives, Coatings and Extrusion) Committee was founded in 2023 with the goal of continuing a biennial conference for the flexible packaging and converting industry, including converters, OEMs, raw materials suppliers, and academia. Previous iterations of the PLACE Conference were organized by TAPPI, but the new European Place Committee has now found a home within bdvi e.V. (Bund Deutscher Verpackungsingenieure), which is the Association of German Packaging Engineers, a registered nonprofit organization.
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.
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.