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Pigmented aqueous barrier coatings, TAPPI Journal November 2020
ABSTRACT: The desire for more sustainable packaging has led to the development of new packaging materials that are fiber based. Aqueous coatings are a pathway to improve the recyclability of these materials. Pigments used in these coatings can improve the performance of the coating and reduce cost while further improving the recyclability. Mineral pigments are also considered to be compost neutral. In this paper, we provide the reader a better fundamental understanding of the mechanisms by which pigments work in barrier coatings. A pigment’s mineralogy and physical characteristics are important to how it will perform, and there have been recent pigment developments that improve coating performance. This paper shows that some pigments are better than others in particular barrier applications. Also, pigmented base or pre-coats can be used to prepare the surface for more highly functional coatings that go on top, improving the barrier function of packaging material and reducing overall cost. Finally, the converting operation is of major importance in driving formulation choices for barrier applications.
Journal articles
Magazine articles
Real-time monitoring of bubble size distribution in a foam forming process, TAPPI JOURNAL August 2019
ABSTRACT: Foam forming is an intricate option to lessen fiber flocculation and to get better energy and water efficiency when making fiber-based products. Developed during the 1970s, this approach has recently received renewed attention, mainly because it also offers possibilities to widen the fiber-based product portfolios with novel and more valuable products. In addition to air content, bubble size is the most important property of foam. Foam quality control is essential for building real-world foam forming processes. In this work, we show how bubble size can be monitored with direct optical imaging in real time in real process conditions, and how such analysis helps adjust foam quality and discover process faults in foam forming.
Journal articles
Editorial: TAPPI JOURNAL 2014 Best Research Paper Award highlights potential of cavitation-jet deinking, TAPPI JOURNAL April 2015
Editorial: TAPPI JOURNAL 2014 Best Research Paper Award highlights potential of cavitation-jet deinking, TAPPI JOURNAL April 2015
Journal articles
Guest Editorial: Highlighting the role of fluid mechanics, TAPPI JOURNAL May 2015
Guest Editorial: Highlighting the role of fluid mechanics, TAPPI JOURNAL May 2015
Journal articles
Development of laboratory wet creping method to evaluate and control pulp quality for tissue, TAPPI JOURNAL May 2015
Development of laboratory wet creping method to evaluate and control pulp quality for tissue, TAPPI JOURNAL May 2015
Journal articles
Thin coatings for paper by foam coating, TAPPI JOURNAL July 2014
Thin coatings for paper by foam coating, TAPPI JOURNAL July 2014
Journal articles
Forming fabric weave-scale variations in paper filler content, TAPPI JOURNAL November 2013
Forming fabric weave-scale variations in paper filler content, TAPPI JOURNAL November 2013
Journal articles
Conference review: Recycling sessions at TAPPI PEERS, TAPPI JOURNAL February 2012
Conference review: Recycling sessions at TAPPI PEERS, TAPPI JOURNAL February 2012
Journal articles
Paper machine white water deaeration and two-stage flotation with channel flow, TAPPI JOURNAL July 2012
Paper machine white water deaeration and two-stage flotation with channel flow, TAPPI JOURNAL July 2012
Journal articles
Deinking of inkjet digital nonimpact printing, TAPPI JOURNAL September 2012
Deinking of inkjet digital nonimpact printing, TAPPI JOURNAL September 2012