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Journal articles
Optimum location of softwood sulfate pulp in three-ply office paper, TAPPI JOURNAL, June 1999, Vol. 82(6)
Optimum location of softwood sulfate pulp in three-ply office paper, TAPPI JOURNAL, June 1999, Vol. 82(6)
Journal articles
A batch light-scattering study of microgel formation in film resins, TAPPI JOURNAL, June 1999, Vol. 82(6)
A batch light-scattering study of microgel formation in film resins, TAPPI JOURNAL, June 1999, Vol. 82(6)
Journal articles
Fundamentals of flotation deinking, TAPPI JOURNAL, March 1999, Vol. 82(3)
Fundamentals of flotation deinking, TAPPI JOURNAL, March 1999, Vol. 82(3)
Journal articles
Using on-siteâ??produced alkaline peroxide For pulp bleaching, TAPPI JOURNAL, March 1999, Vol. 82(3)
Using on-site–produced alkaline peroxide For pulp bleaching, TAPPI JOURNAL, March 1999, Vol. 82(3)
Journal articles
Identification of a tmp wood chip refiner with implications for process control, TAPPI JOURNAL, May 1999, Vol. 82(5)
Identification of a tmp wood chip refiner with implications for process control, TAPPI JOURNAL, May 1999, Vol. 82(5)
Journal articles
TAPPI JOURNAL November 1999; Vol. 82; No. 11 - Evaluation of Surfactants as Digester Additives for Kraft Softwood Pulping, TAPPI JOURNAL, November 1999, Vol. 82(11)
TAPPI JOURNAL November 1999; Vol. 82; No. 11 - Evaluation of Surfactants as Digester Additives for Kraft Softwood Pulping, TAPPI JOURNAL, November 1999, Vol. 82(11)
Journal articles
Black liquor gasification: a combination approach, TAPPI JOURNAL, November 1999, Vol. 82(11)
Black liquor gasification: a combination approach, TAPPI JOURNAL, November 1999, Vol. 82(11)
Journal articles
Trends in sweden for closed cycle recovery of tcf bleach filtrates in integrated kraft pulp production, TAPPI JOURNAL, October 1999, Vol. 82(10)
Trends in sweden for closed cycle recovery of tcf bleach filtrates in integrated kraft pulp production, TAPPI JOURNAL, October 1999, Vol. 82(10)
Journal articles
Chlorine dioxide bleaching of single species samples of three hardwood kraft pulps: oak, maple and gum, TAPPI JOURNAL, October 1999, Vol. 82(10)
Chlorine dioxide bleaching of single species samples of three hardwood kraft pulps: oak, maple and gum, TAPPI JOURNAL, October 1999, Vol. 82(10)
Journal articles
Magazine articles
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.