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The PPI Top 100, Paper360º September/October 2017

The PPI Top 100, Paper360º September/October 2017

New Technology Pays Dividends for Metsä Board Husum, Paper360º January/February 2023

Meeting the Future Through Knowledge Sharing and Connection, Paper360º March/April 2023

Small Jobs in Maintenance, Paper360º March/April 2023

Uruguay Prepares to Open a Gateway to the World, Paper360º July/August 2021

Uruguay Prepares to Open a Gateway to the World, Paper360º July/August 2021

The Paper360° 2021 TOP 50 POWER LIST, Paper360º July/August 2021

The Paper360° 2021 TOP 50 POWER LIST, Paper360º July/August 2021

Communicate, Collaborate: Steve Voorhees on Impactful Leadership, Paper360º November/December 2020

Communicate, Collaborate: Steve Voorhees on Impactful Leadership, Paper360º November/December 2020

What is Our Industry’s Most Critical Workforce Need?, Paper360º March/April 2021

What is Our Industry’s Most Critical Workforce Need?, Paper360º March/April 2021

Leadership in Maintenance: Wastefulness, Paper360º November/December 2021

Leadership in Maintenance: Wastefulness, Paper360º November/December 2021

Multilayering of conventional latex-based dispersion coatings containing small amounts of silica nanospheres: Runnability on a pilot scale flexographic coater and barrier performance, TAPPI Journal November 2023

ABSTRACT: The addition of functional coatings to packaging materials is a key requirement for increasing their performance and creating innovative packaging solutions. Flexography, a cost-effective printing method commonly used to print information and graphics directly onto a wide variety of packaging substrates, shows good potential for applying functional coatings. In this study, conventional clay-latex coating formulations containing approximately 1.3 wt% silica nanospheres were applied to a linerboard using a pilot scale flexographic printing web press. The performance of multilayered silica nanosphere-based coatings was compared with conventional coatings containing talc and/or wax dispersion in terms of coating grammage, runnability, and barrier performance. Coating grammage increased with an increased number of coating layers and a significant decrease in both the water vapor transmission rate (WVTR) and the direct water uptake of water (Cobb 120 wettability test) was observed for coatings containing silica nanoparticles. In general, the silica nanosphere-based coatings performed better than talc-based coatings. Talc/wax-based coatings had the highest variation in surface roughness due to an uneven distribution and variations of coating layers.