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Pixelle Mill in Jay, ME, Jay, ME, Paper360º September/October 2024

Paper360°’s 2025 Power List, Paper360º September/October 2025

Employee Selection Can Help Weather the ´Silver Tsunami’, Paper360º January/February 2020

Employee Selection Can Help Weather the ´Silver Tsunami’, Paper360º January/February 2020

Business Cycles • Questions Executives Need to Ask, Paper360º January/February 2020

Business Cycles • Questions Executives Need to Ask, Paper360º January/February 2020

The Paper360° 2020 TOP 50 POWER LIST, Paper360º July/August 2020

The Paper360° 2020 TOP 50 POWER LIST, Paper360º July/August 2020

The Coronavirus and the European Pulp and Paper Industry, Paper360º May/June 2020

The Coronavirus and the European Pulp and Paper Industry, Paper360º May/June 2020

Wood Market Dynamics and the Impact on Pulp and Paper: Current Trends, November/December 2023 Paper360º

Graphic Packaging International: Safety Never Stops, Paper3

Graphic Packaging International: Safety Never Stops, Paper360º January/February 2022

Coping Mechanisms for the Carbon Clampdown, Paper360º May/June 2022

Multifunctional barrier coating systems created by multilayer curtain coating, TAPPI Journal November 2023

ABSTRACT: Functional coatings are applied to paper and paperboard substrates to provide resistance, or a barrier, against media such as oil and grease, water, water vapor, and oxygen, for applications such as food packaging, food service, and other non-food packaging. Today, there is increasing interest in developing recyclable and more sustainable approaches for producing these types of packages. This paper focuses on water-based barrier coatings (WBBC) for oil and grease resistance (OGR), water, moisture vapor transmission rate (MVTR), and oxygen barrier performance. The main goal is to create coated systems that can achieve more than one barrier property using multilayer curtain coating (MLCC) in a single application step. One advantage is in optimizing coating material cost with the use of functional chemistry in confined layers where performance is balanced within the coating layered structure. This allows simultaneous application of layers of different polymer types in one step to achieve the appropriate performance needs for a given barrier application. This paper provides working examples of using MLCC to create coating structures with multiple barrier properties in a single application pass. Barrier polymers studied include styrene butadiene, styrene acrylate, starch-containing emulsions, and polyvinyl alcohol. The paper also shows the effect of increasing the pigment volume concentration with platy clay or fine ground calcium carbonate on MVTR and OGR barrier properties.