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Journal articles
Magazine articles
Open Access
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
Magazine articles
Open Access
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.

Conference papers
Opening/Welcome Remarks, 17th TAPPI European PLACE Conference

Opening/Welcome Remarks, 17th TAPPI European PLACE Conference

Conference papers
Plastics or Planet? A View into the Future, 17th TAPPI European PLACE Conference

Plastics or Planet? A View into the Future, 17th TAPPI European PLACE Conference

Conference papers
Role of Packaging in LCA of food products in preventing food waste, 17th TAPPI European PLACE Conference

Role of Packaging in LCA of food products in preventing food waste, 17th TAPPI European PLACE Conference

Conference papers
Adhesives and Coatings for Circular Flexible Packaging, 17th TAPPI European PLACE Conference

Adhesives and Coatings for Circular Flexible Packaging, 17th TAPPI European PLACE Conference

Conference papers
The Path to Formable Cellulose-Based Barrier Solutions in Packaging, 17th TAPPI European PLACE Conference

The Path to Formable Cellulose-Based Barrier Solutions in Packaging, 17th TAPPI European PLACE Conference

Conference papers
Developing Successful Supervisors, 2006 Papermakerâ??s Conference

Developing Successful Supervisors, 2006 Papermaker’s Conference

Conference papers
Optimizing Machine Efficiency Through Fibre Quality Management, 2006 Papermakerâ??s Conference

Optimizing Machine Efficiency Through Fibre Quality Management, 2006 Papermaker’s Conference

Conference papers
Energy Conservation Program Overview Stora Enso North Americ

Energy Conservation Program Overview Stora Enso North American Operations, 2006 Papermaker’s Conference

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