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Journal articles
Open Access
Market projections of cellulose nanomaterial-enabled products - Part 2: Volume estimates, TAPPI JOURNAL June 2014

Market projections of cellulose nanomaterial-enabled products - Part 2: Volume estimates, TAPPI JOURNAL June 2014

Journal articles
Open Access
Technical Evaluation: Methods for Sealing Paper/Foil Aseptic

Technical Evaluation: Methods for Sealing Paper/Foil Aseptic Food Packages, 1996 Polymers, Laminations & Coatings Conference Proceedings

Journal articles
Open Access
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
Open Access
Understanding coating strength at the molecular and microscopic level, TAPPI JOURNAL June 2015

Understanding coating strength at the molecular and microscopic level, TAPPI JOURNAL June 2015

Journal articles
Open Access
Techniques for package printing and design, September 1988, TAPPI Journal 88SEP137

Techniques for package printing and design, TAPPI JOURNAL September 1988

Journal articles
Open Access
Using dynamic mechanical spectroscopy to improve the performance of hot melt adhesives, TAPPI JOURNAL March 1989

Using dynamic mechanical spectroscopy to improve the performance of hot melt adhesives, TAPPI JOURNAL March 1989

Journal articles
Open Access
Flexible nonwoven composites for food packaging, TAPPI JOURNAL, May 1991, Vol. 74(5)

Flexible nonwoven composites for food packaging, TAPPI JOURNAL, May 1991, Vol. 74(5)

Journal articles
Open Access
Print-registration control in a rotogravure printing press combined with extrusion-coating or lamination processes, TAPPI JOURNAL, March 1995, Vol. 78(3)

Print-registration control in a rotogravure printing press combined with extrusion-coating or lamination processes, TAPPI JOURNAL, March 1995, Vol. 78(3)

Journal articles
Open Access
High-barrier packaging with liquid crystal polymers, TAPPI JOURNAL, June 1997, Vol. 80(6)

High-barrier packaging with liquid crystal polymers, TAPPI JOURNAL, June 1997, Vol. 80(6)

Journal articles
Open Access
High-performance hot melts for bonding polar and nonpolar substrates, TAPPI JOURNAL, June 1997, Vol. 80(6)

High-performance hot melts for bonding polar and nonpolar substrates, TAPPI JOURNAL, June 1997, Vol. 80(6)

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