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Journal articles
Assessing real-life sealant performance in flexible packaging, "the PLACE", October 2000
Assessing real-life sealant performance in flexible packaging, "the PLACE", October 2000
Journal articles
Effect of extrusion coating parameters on polyester adhesion - a line study - (209KB), "the PLACE"; February 2002
Effect of extrusion coating parameters on polyester adhesion - a line study - (209KB), "the PLACE" February 2002
Journal articles
The influence of die design and extensional rheology on the onset of 'wave' interfacial instabilities in coextrusion flows, "the PLACE" January 2002
The influence of die design and extensional rheology on the onset of 'wave' interfacial instabilities in coextrusion flows, "the PLACE" January 2002
Journal articles
Temperature switchable membranes for packaging fresh produce, "the PLACE", November 2000
Temperature switchable membranes for packaging fresh produce, "the PLACE", November 2000
Journal articles
Hot melt adhesives comprising crystalline and amorphous polymers, "the PLACE", December 2001
Hot melt adhesives comprising crystalline and amorphous polymers, "the PLACE", December 2001
Journal articles
Study on ultraviolet cured hot melt pressure sensitive adhesives for windshield stickers, "the PLACE", December 2001
Study on ultraviolet cured hot melt pressure sensitive adhesives for windshield stickers, "the PLACE", December 2001
Journal articles
The effects of comonomer type on the blown film performance of lldpe resins made using a metallocene single-site catalyst, "the PLACE" February 2001
The effects of comonomer type on the blown film performance of lldpe resins made using a metallocene single-site catalyst, "the PLACE" February 2001
Journal articles
Metallocene copolymers for extrusion coating applications designed specifically for exceptional ultimate hot tack and high temperature hot tack strength, "the PLACE" March 2001
Metallocene copolymers for extrusion coating applications designed specifically for exceptional ultimate hot tack and high temperature hot tack strength, "the PLACE" March 2001
Journal articles
Pellet transfer - preventative measures employed to reduce streamer formation, "the PLACE", May 2001
Pellet transfer - preventative measures employed to reduce streamer formation, "the PLACE", May 2001
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.