Extrusion Coaing with PVOH to Produce High? Barrier Paper? Based Packaging, 24FlexPack Conference

In this paper, we will discuss the process of extrusion coating polyvinyl alcohol (PVOH) to produce high-barrier paper-based packaging. As flexible packaging companies look to replace traditional multi-layer packaging with recyclable for compostable alternatives, many are considering the use of paper-based packaging and biopolymers or bio‐based resins to achieve similar properties with improved and end-of-life options. Another consideration is that extrudable PVOH is fully water soluble in the recycling process. Incorporating paper and extrudable PVOH in the extrusion coating process comes with a unique set of challenges. In this paper, we will present a solution for extrusion coating PVOH on paper, including the processing parameters, equipment, water-based primer and conditions necessary for success. We will also discuss opportunities for making more advanced structures, building on this solutjion.

TAPPI conference proceedings and presentations, technical papers, and publication articles provide technical and management data and solutions on topics covering the Pulp, Paper, Tissue, Corrugated Packaging, Flexible Packaging, Nanotechnology and Converting Industries.

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