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Journal articles
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A tour of Scandinavian research facilities sparks ideas for cooperation, TAPPI JOURNAL, January 1998, Vol. 81(1)

A tour of scandinavian research facilities sparks ideas for cooperation, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Subscription Access
Case study: power company operates Alabama mill's 'energy island', TAPPI JOURNAL, January 1998, Vol. 81(1)

Case study: power company operates alabama mill's 'energy island', TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Subscription Access
Focusing on the future of paper machines, TAPPI JOURNAL, January 1998, Vol. 81(1)

Focusing on the future of paper machines, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Subscription Access
Influence of coating composition on web release in high speed film transfer coating, TAPPI JOURNAL, January 1998, Vol. 81(1)

Influence of coating composition on web release in high speed film transfer coating, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Subscription Access
The role of analytical winding dynamics in winder design, TAPPI JOURNAL, January 1998, Vol. 81(1)

The role of analytical winding dynamics in winder design, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Subscription Access
Tools of the hedging trade, TAPPI JOURNAL, January 1998, Vol

Tools of the hedging trade, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Open Access
89APR177

MD microstriations in paper: a two-sided shrinkage phenomenon?, TAPPI JOURNAL April 1989

Journal articles
Open Access
A method to produce paperboard with a lightweight low-density coating, TAPPI Journal November 2025

ABSTRACT: In this work, a method is described in which a coating layer is produced that consists of a network of bubble-shaped air-filled voids within the coating. This is accomplished by instantaneously flash-drying all the water in the coating as it exits the application nip. The nip is formed between a polished chrome drum and a deformable press roll. The combination of the drum temperature, nip pressure, and nip width allow for sufficient energy to be transferred to the coating to completely flash-dry the coating material. The pressure within the nip is sufficient to allow the coating to superheat within the nip, then flash boil as it exits the nip. This boiling effect and resulting expansion are constrained by the roll surface, resulting in a coated surface that mirrors the polished chrome surface. The coating immobilizes while in the process of boiling, which preserves the bubble structure. With a coat weight of 5 g/m2, a flat, smooth surface is produced. This process was scaled up to a mill production machine layout and run at speeds as high as 450 m/min.

Journal articles
Open Access
Editorial: Coating innovations for driving the next generation of sustainable packaging, TAPPI Journal November 2025

Welcome to the 2025 Special Coating Issue of TAPPI Journal. As we reflect on developments in 2025, the industry’s focus on sustainable packaging continues to sharpen, bringing several critical coating challenges and opportunities into view.

Journal articles
Open Access
Predictive advisory solutions for chemistry management, control, and optimization, TAPPI Journal March 2025

ABSTRACT: Process runnability and end-product quality in paper and board making are often connected to chemistry. Typically, monitoring of the chemistry status is based on a few laboratory measurements and a limited number of online specific chemistry-related measurements. Therefore, mill personnel do not have real-time transparency of the chemistry related phenomena, which can cause production instability, including deposition, higher chemical consumption, quality issues in the end-product and runnability problems. Machine learning techniques have been used to establish soft sensor models and to detect abnormalities. Furthermore, these soft sensors prove to be most useful when combined with expert-driven interpretation. This study is aimed at utilizing a hybrid solution comprising chemistry and physics models and machine learning models for stabilizing chemistry-related processes in paper and board production. The principal idea is to combine chemistry/physics models and machine learning models in a fashion close to white box modeling. A cornerstone in the approach is to formulate explanations of the findings from the models; that is, to explain in plain text what the findings mean and how operational changes can mitigate the identified risks. The approach has been demonstrated for several different applications, including deposit control in the wet end, both raw water treatment and usage, and wastewater treatment. This approach provides mill personnel with knowledge of identified phenomena and recommendations on how to stabilize chemistry-related processes. Instead of using close to black box machine learning models, a hybrid solution including chemistry/physics models can enhance the performance of artificial intelligence (AI) deployed systems. A successful way of gaining the trust from mill personnel is by creating a plain text explanation of the findings from the hybrid models. The correlation between the likelihood of a phenomena and disturbance and the explanations are derived and validated by application and chemistry and physics experts.

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