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Journal articles
Techniques for package printing and design, September 1988, TAPPI Journal 88SEP137
Techniques for package printing and design, TAPPI JOURNAL September 1988
Journal articles
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
Using the solubility parameter to design polyvinylidene chloride copolymers for improved hot tack performance in coatings, TAPPI JOURNAL, April 1990, Vol. 73(4)
Using the solubility parameter to design polyvinylidene chloride copolymers for improved hot tack performance in coatings, TAPPI JOURNAL, April 1990, Vol. 73(4)
Journal articles
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
Polymers, laminations and coatings conference, TAPPI JOURNAL, January 1990, Vol. 73(1)
Polymers, laminations and coatings conference, TAPPI JOURNAL, January 1990, Vol. 73(1)
Journal articles
New modified hydrocarbon resins: an alternative to styrenated terpene resins in hot melts, TAPPI JOURNAL, June 1990, Vol. 73(6)
New modified hydrocarbon resins: an alternative to styrenated terpene resins in hot melts, TAPPI JOURNAL, June 1990, Vol. 73(6)
Journal articles
Improved methods for packaging copy paper with hot melts, TAPPI JOURNAL, November 1993, Vol. 76(11)
Improved methods for packaging copy paper with hot melts, TAPPI JOURNAL, November 1993, Vol. 76(11)
Journal articles
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
High-performance reactive hot melts, TAPPI JOURNAL, October 1994, Vol. 77(10)
High-performance reactive hot melts, TAPPI JOURNAL, October 1994, Vol. 77(10)
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.