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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.
Journal articles
Magazine articles
Kingsport Celebrates Its Centennial, Paper360º November/Dec
Kingsport Celebrates Its Centennial, Paper360º November/December 2016
Journal articles
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Ready to Compete for Another Century, Paper360º September/Oc
Ready to Compete for Another Century, Paper360º September/October 2017
Journal articles
Magazine articles
Industry 4.0: New Lexicon, No Limits, Paper360º September/October 2021
Industry 4.0: New Lexicon, No Limits, Paper360º September/October 2021
Journal articles
Magazine articles
Practical Strategies to Reduce Pulp and Paper Mill Energy Use, Paper360º July/August 2018
Practical Strategies to Reduce Pulp and Paper Mill Energy Use, Paper360º July/August 2018
Journal articles
Magazine articles
RISI’s 2018 Asian CEO of the Year, Paper360º May/June 2018
RISI’s 2018 Asian CEO of the Year, Paper360º May/June 2018
Journal articles
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Leading for Change: 2023 TAPPI Award Winners, Paper360º May/June 2023
Journal articles
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Pulp in a Frenzy, Paper360º, January/February 2018
Pulp in a Frenzy, Paper360º, January/February 2018
Journal articles
Magazine articles
The Trade War Threat Looms, Paper360º January/February 2019
The Trade War Threat Looms, Paper360º January/February 2019
Journal articles
Magazine articles
Machine Learning and Improved Performance, Paper360º July/August 2018
Machine Learning and Improved Performance, Paper360º July/August 2018