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Journal articles
Open Access
Use of enzymes for reduction in refining energy - laboratory

Use of enzymes for reduction in refining energy - laboratory studies, TAPPI JOURNAL, November 2006

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.

Journal articles
Open Access
Deinking laser-print paper using ultrasound, TAPPI JOURNAL, March 1994, Vol. 77(3)

Deinking laser-print paper using ultrasound, TAPPI JOURNAL, March 1994, Vol. 77(3)

Journal articles
Open Access
Accurate determination of six common fillers in fine papers, newsprint, and recycled stock by x-ray fluorescence spectrometry, TAPPI JOURNAL, April 1995, Vol. 78(4)

Accurate determination of six common fillers in fine papers, newsprint, and recycled stock by x-ray fluorescence spectrometry, TAPPI JOURNAL, April 1995, Vol. 78(4)

Magazine articles
Open Access
Drying: New lime mud dryer kiln helps James Riverâ??s Pennington, AL, mill meet environmental restrictions, December 1995 Tappi Journal [95Dec37.pdf]

New lime mud dryer kiln helps james river's pennington, al, mill meet environmental restrictions, TAPPI JOURNAL, December 1995, Vol. 78(12)

Journal articles
Open Access
Effects of temperature and oxygen concentration on potassium and chloride enrichment during black-liquor combustion, December 1995 Tappi Journal [95Dec67.pdf]

Effects of temperature and oxygen concentration on potassium and chloride enrichment during black-liquor combustion, TAPPI JOURNAL, December 1995, Vol. 78(12)

Journal articles
Open Access
Fiber fractionation as a method of improving handsheet properties after repeated recycling, TAPPI JOURNAL, May 1995, Vol. 78(5)

Fiber fractionation as a method of improving handsheet properties after repeated recycling, TAPPI JOURNAL, May 1995, Vol. 78(5)

Journal articles
Open Access
Photoyellowing of mechanical pulps - part 2: activation spectra for light-induced yellowing of newsprint paper by polychromatic radiation, TAPPI JOURNAL, May 1995, Vol. 78(5)

Photoyellowing of mechanical pulps - part 2: activation spectra for light-induced yellowing of newsprint paper by polychromatic radiation, TAPPI JOURNAL, May 1995, Vol. 78(5)

Journal articles
Open Access
Surface characterization of non-chlorine-bleached pulp fibers and calcium carbonate Coatings using inverse gas chromatography, TAPPI JOURNAL, May 1995, Vol. 78(5)

Surface characterization of non-chlorine-bleached pulp fibers and calcium carbonate Coatings using inverse gas chromatography, TAPPI JOURNAL, May 1995, Vol. 78(5)

Journal articles
Open Access
NO2 treatment of kraft pulp followed by oxygen bleaching influence of black liquor, TAPPI JOURNAL, February 1990, Vol. 73(2)

NO2 treatment of kraft pulp followed by oxygen bleaching influence of black liquor, TAPPI JOURNAL, February 1990, Vol. 73(2)

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