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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
Adhesion with purpose: The value of primers in sustainable flexible packaging, TAPPI Journal July 2025
ABSTRACT: Primers play a crucial role in flexible packaging by providing adhesion, enhancing performance, and improving the overall quality of packaging structures. As the packaging industry shifts towards more sustainable solutions, it brings new challenges for meeting adhesion requirements. Different types of sustainable materials, with their complicated physical and chemical properties, usually result in poor adhesion in extrusion coating or extrusion lamination, whether this is due to fast crystallization, secondary crystallization, low processing temperature, lack of functional groups, or a combination thereof. Water-based primers ensure that these innovations meet both functional and environmental standards for the packaging of tomorrow. Conventional water-based primers, including polyethyleneimine (PEI) and ethylene acrylic acid (EAA), offer significant advantages in sustainable packaging design by chemically modifying the surface of the substrate to enhance adhesion. In this study, we will discuss adhesion issues in three case studies involving sustainable packaging materials: (1) extrusion coating of polyvinyl alcohol (PVOH) on paper; (2) extrusion lamination of paper and metallized film with starch biopolymer; and (3) extrusion coating of polyhydroxyalkanoates (PHA) on paper. These cases represent three adhesion challenges related to sustainable materials, namely fast crystallization rate, low processing temperature, and secondary crystallization. A three-step adhesion improvement procedure was employed to identify the proper primer in each case study. This procedure included a wetting-out test with primer, an adhesion test, and an extrusion test with priming. In our results, strong fiber tearing or destructive bonds were achieved in each case with the help of water-based primers. These results demonstrate the value of water-based primers in enabling the transition to more sustainable packaging structures without compromising performance.
Journal articles
Downgauge paper overwrap films using mlldpe blends, TAPPI JOURNAL, April 2000, Vol. 83(4)
Downgauge paper overwrap films using mlldpe blends, TAPPI JOURNAL, April 2000, Vol. 83(4)
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
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
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)
Conference papers
Adhesives for sanitary napkins, TAPPI JOURNAL, August 1990, Vol. 73(8)
Adhesives for sanitary napkins, TAPPI JOURNAL, August 1990, Vol. 73(8)
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)