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Webinars
Recycling Multilayer Plastic Packaging by Solvent-Targeted Recovery and Precipitation Webinar
The Solvent-Targeted Recovery and Precipitation (STRAP) process is a platform technology for recycling multicomponent plastics, including multilayer plastic films. I will describe the basic
Webinars
How Predictive Maintenance Can Turn Data into Action in the Pulp and Paper Industry
How Predictive Maintenance Can Turn Data into Action in the Pulp and Paper Industry Does your maintenance program have a lot of data but struggle to produce actionable outcomes? Predictive
Flexible Packaging
The latest Flexible Packaging focused events, news, educational resources, publications, standards and conference documents.
TAPPI News
An Accent on Innovation
An Accent on Innovation On May 13, 2014, Eric Fletty and I had the opportunity to visit with one of TAPPI’s Sustaining Member companies, Kadant Inc., at its Kadant Johnson facility in Three Rivers,
News
Sack and kraft packaging demand is shifting to consumer application
JOHN NELSON World demand for sack and kraft paper used in packaging is set for healthy annual growth of three percent across the next five years, according to the latest exclusive research from Smithers Pira.
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
Rheological indicators to predict the extrusion coating performance of LDPE, TAPPI JOURNAL, December 2005, Vol. 4(12) (92 KB)
Rheological indicators to predict the extrusion coating performance of LDPE, TAPPI JOURNAL, December 2005, Vol. 4(12) (92 KB)
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
High-value adhesives for a low-cost process, TAPPI JOURNAL, August 1997, Vol. 80(8)
High-value adhesives for a low-cost process, TAPPI JOURNAL, August 1997, Vol. 80(8)
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)