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Unlocking the Potential: SAF and CTO in the Pulp and Paper Industry, Paper360º September/October 2023

TAPPI News, Paper360º September/October 2023

Metsä Tissue: Sustainability and Digitalization Taking Key Roles in the Future, Tissue360º Spring/Summer 2023

Owning Safety, Tissue360º Spring/Summer 2023

Owning Safety, Tissue360º Spring/Summer 2023

Sunset Converting and Körber Find AfH Converting Success in Adversity, Tissue360º Spring/Summer 2023

Energy Optimization Key to Cost Savings in Tissue Mills, Tissue360º Spring/Summer 2023

Challenges and Solutions: The Tissue Industry in Europe, Tissue360º Spring/Summer 2023

A New Energy Source, a New Challenge, Tissue360º Spring/Summer 2023

A New Energy Source, a New Challenge, Tissue360º Spring/Summ

Editorial: Celebrating an industry giant: Dr. Peter W. Hart, TAPPI Journal April 2024

ABSTRACT: On February 19, 1915, at the annual meeting of the American Paper and Pulp Association held at the Waldorf-Astoria Hotel in New York, a group of 35 people formed a new division called the “Technical Section of the American Paper and Pulp Association” with the objectives to: (1) stimulate interest in the science of pulp and papermaking; (2) provide means for the inter-change of ideas among its members; and (3) encourage original investigation. At that meeting, Professor Ralph H. McKee of the University of Maine (1909-1916) spoke. Professor McKee had initiated the first college course in Pulp and Paper in the United States. In his remarks he stated:

Characterizing rheological behavior and fluidization of highly refined furnishes, TAPPI Journal April 2024

ABSTRACT: In this work, highly refined softwood bleached kraft pulp (SWBKP) furnishes, referred to here as XFC, were studied from the perspective of fiber suspension handling in processing. The rheology of the furnishes was studied with a rotational rheometer using a non-standard flow geometry to understand the viscosity development at different consistencies and the impact of temperature. For fluidization analysis during pipe flow, two optical methods were implemented; namely, optical coherence tomography (OCT) and high-speed video (HSV) imaging. The OCT was used to determine the small-scale floc structures near the pipe wall where the shear stress is highest, and the HSV imaging was applied for observing flow instabilities and XFC suspension uniformity at the pipe scale. All these issues can be significant in deciding the minimum flow rate required for a process pipe to get sufficient fluidization of XFC suspensions.