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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
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Progress in foam forming technology, TAPPI JOURNAL August 2019
ABSTRACT: This paper summarizes recent developments in foam forming that were mainly carried out in pilot scale. In addition to improving the efficiency of existing processes and allowing better uniformity in material, a wide variety of raw materials can be utilized in foam forming. The focus of this paper is thin webs—papers, boards and foam-laid nonwovens, along with the pilot scale results obtained at VTT in Finland. For paper and board grades, the most direct advantage of foam forming is the potential to produce very uniform webs from longer and coarser fibers and obtain material savings through that. Another main point is increased solids content after a wet press, which may lead to significant energy savings in thermal drying. Finally, the potential to introduce “difficult” raw materials like long synthetic or manmade fibers into a papermaking process enables the manufacturing of novel products in an existing production line. This paper also briefly discusses other interesting foam-based applications, including insulation and absorbing materials, foam-laid nonwovens, and materials for replacing plastics.
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Making Our Mills Safer, Tissue360º Fall/Winter 2019
Making Our Mills Safer, Tissue360º Fall/Winter 2019
Journal articles
Magazine articles
Tissue Industry News, Tissue360º Fall/Winter 2019
Tissue Industry News, Tissue360º Fall/Winter 2019
Journal articles
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SetPoint: Tissue Making—from a Chemicals Viewpoint, Tissue36
SetPoint: Tissue Making—from a Chemicals Viewpoint, Tissue360º Fall/Winter 2012
Journal articles
Magazine articles
Orchids Paper Products Grows with the Times, Tissue360º Fall
Orchids Paper Products Grows with the Times, Tissue360º Fall/Winter 2012
Journal articles
Magazine articles
Guest Editorial: Paper and bioprocess engineering at SUNY-ES
Guest Editorial: Paper and bioprocess engineering at SUNY-ESF, TAPPI JOURNAL January 2012
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Guest Editorial: J.Y. Zhu: Adapting and transforming the ind
Guest Editorial: J.Y. Zhu: Adapting and transforming the industry, TAPPI JOURNAL July 2012
Journal articles
Magazine articles
TAPPI News, Tissue360º Spring/Summer 2013
TAPPI News, Tissue360º Spring/Summer 2013
Journal articles
Magazine articles
Increased Capital Spending in North American Tissue Industry
Increased Capital Spending in North American Tissue Industry Pushes TAD Capacity to 30 Percent, Tissue360º Spring/Summer 2013