Real-time monitoring of bubble size distribution in a foam forming process

Antti Koponen (Corresponding Author), Hannu Eloranta, Ari Jäsberg, Markus Honkanen, Harri Kiiskinen

    Research output: Contribution to journalArticleScientificpeer-review

    11 Citations (Scopus)


    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.
    Original languageEnglish
    Pages (from-to)487-494
    Number of pages8
    JournalTappi Journal
    Issue number8
    Publication statusPublished - Aug 2019
    MoE publication typeA1 Journal article-refereed


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