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Reliability and SafetyPart 1: The Link Between Personnel Safety and Equipment Reliability, Paper360º May/June 2022

How China Came to Dominate Market for Lithium Batteries, Paper360º May/June 2022

Want to be Successful? Implement Systems and Seize Opportunities, November/December 2023 Paper360º

What is Our Industry’s Most Critical Workforce Need?, Paper360º March/April 2021

What is Our Industry’s Most Critical Workforce Need?, Paper360º March/April 2021

TAPPI News,Paper360º July/August 2021

TAPPI News,Paper360º July/August 2021

Thinking Beyond the Basement, Paper360º July/August 2021

Thinking Beyond the Basement, Paper360º July/August 2021

Uruguay Prepares to Open a Gateway to the World, Paper360º July/August 2021

Uruguay Prepares to Open a Gateway to the World, Paper360º July/August 2021

Water chemistry challenges in pulping and papermaking • fundamentals and practical insights: Part 2: Conductivity, charge, and hardness, TAPPI Journal June 2023

ABSTRACT: Although water is essential to the papermaking process, papermakers often overlook its importance and focus on fibers, fillers, and chemical additives. A better understanding of water properties and chemical interactions associated with water at the wet end leads to a sound foundation for high-quality paper production and smooth operation. Water is an excellent solvent for ionic substances, both organic and inorganic. These substances contribute to system conductivity, charge, and hardness and significantly impact the papermaking process. Part 1 of this paper, published in TAPPI J. 21(6): 313(2022), discussed fundamental water properties, water chemistry, and the impact of pH on pulping and papermaking operations. In this paper, we review definitions, sources, and the typical symptoms of the effect of conductivity, charge, and hardness on the productivity of the papermaking process. Sources of conductivity, charge, and hardness impacting these factors, measurement methods, and available correction strategies for their control are also discussed.

TAPPI Journal, Paper360º January/February 2023

Effects of tissue additives on copy paper forming and properties, TAPPI Journal February 2024

ABSTRACT: Laboratory tests were conducted in an effort to determine the effects on paper machine process attributes and the properties of paper made from recycled copy paper furnish upon the addition of chemical agents that are commonly used in the production of hygiene tissue products. Due to continuing growth in tissue and towel grades of paper, such agents are experiencing greater usage. Charge titration test results revealed that certain dry strength agents associated with tissue manufacturing have the potential to shift the balance of charge in papermaking furnish to less negative or even positive values. Creping adhesive was found to contribute to fine particle retention, especially when present at relatively high levels. Release aid and a polyacrylate dispersant had the opposite effect. Low addition levels of both a creping adhesive and a debonding agent surprisingly increased a wide range of strength attributes of paper handsheets in comparison to sheets prepared from unaltered recycled copy paper furnish. The debonding agent decreased paper strength at higher levels of addition. Such effects appear to depend not only on the expected effects of agents themselves, but also on how they affect the charge balance of the wet-end system.