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Magazine articles
Open Access
Industry leaders: jukka harmala leads stora enso into new global age, TAPPI JOURNAL, May 2000, Vol. 83(5)

Industry leaders: jukka harmala leads stora enso into new global age, TAPPI JOURNAL, May 2000, Vol. 83(5)

Magazine articles
Open Access
A personal mount st. helens experience, TAPPI JOURNAL, May 2000, Vol. 83(5)

A personal mount st. helens experience, TAPPI JOURNAL, May 2000, Vol. 83(5)

Magazine articles
Open Access
Energy: recovering capital and cutting costs, TAPPI JOURNAL, November 2000, Vol. 83(11)

Energy: recovering capital and cutting costs, TAPPI JOURNAL, November 2000, Vol. 83(11)

Magazine articles
Open Access
What's new with tappi test methods?, TAPPI JOURNAL, September 2000, Vol. 83(9)

What's new with tappi test methods?, TAPPI JOURNAL, September 2000, Vol. 83(9)

Journal articles
Magazine articles
Open Access
Kraft pulp viscosity as a predictor of paper strength: Its uses and abuses, TAPPI Journal October 2023

ABSTRACT: For bleached kraft pulps, two factors govern paper strength: the individual fiber strength, and the bond strength that adheres the individual fibers together in the paper matrix. Inherent fiber strength is related to the length of the carbohydrate polymers, also known as the degree of polymerization (DP). Average DP (DP) is inferred by performing pulp viscosity measurements. Under certain circumstances during kraft pulping and bleaching, the average polymer lengths can be shortened, resulting in lower pulp viscosity, and may indicate fiber damage. Fiber damage typically manifests itself as a reduction in tear strength for well-bonded handsheets.This paper will review the literature on how pulp viscosity can predict paper/fiber strength and how it can be used as a diagnostic tool. It can be a means to monitor pulp quality during pulping and bleaching, as well as to alert when such operations approach a critical threshold. However, viscosity losses must be carefully and judiciously analyzed. Like most diagnostic tools, viscosity measurements can be misused and abused, which can lead to incorrect inferences about intrinsic fiber strength. This review will also cover these misuses. The overall goal is to provide the papermaker a better understanding of what pulp viscosity is, how it correlates to potential sheet strength, and what its limitations are. It will be illustrated that when pulp viscosity drops below a critical value, it will indicate an appreciable deterioration in the paper’s tear and tensile strength.

Magazine articles
Open Access
Views from the top: ceos offer global perspectives on the pulp and paper industries, TAPPI JOURNAL, August 1999, Vol. 82(8)

Views from the top: ceos offer global perspectives on the pulp and paper industries, TAPPI JOURNAL, August 1999, Vol. 82(8)

Magazine articles
Open Access
UGA warnell school of forest resources builds mobile lab for wastewater analyses and management, TAPPI JOURNAL, December 1999, Vol. 82(12)

UGA warnell school of forest resources builds mobile lab for wastewater analyses and management, TAPPI JOURNAL, December 1999, Vol. 82(12)

Magazine articles
Open Access
On management: energy and the pulp and paper industry - how will electric utility deregulation affect You?, TAPPI JOURNAL, March 1998, Vol. 81(3)

On management: energy and the pulp and paper industry - how will electric utility deregulation affect You?, TAPPI JOURNAL, March 1998, Vol. 81(3)

Magazine articles
Open Access
English as a first and second language - part 6: avoiding grammar traps, TAPPI JOURNAL, September 1998, Vol. 81(9)

English as a first and second language - part 6: avoiding grammar traps, TAPPI JOURNAL, September 1998, Vol. 81(9)

Magazine articles
Open Access
Mondi in south africa, TAPPI JOURNAL, April 1999, Vol. 82(4)

Mondi in south africa, TAPPI JOURNAL, April 1999, Vol. 82(4)

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