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Journal articles
Maintenance and repair of energy-efficient integral horsepower low-voltage motors, TAPPI JOURNAL, November 1997, Vol. 80(11)
Maintenance and repair of energy-efficient integral horsepower low-voltage motors, TAPPI JOURNAL, November 1997, Vol. 80(11)
Journal articles
Plant maintenance: changing from a necessary evil to a profit center, TAPPI JOURNAL, November 1997, Vol. 80(11)
Plant maintenance: changing from a necessary evil to a profit center, TAPPI JOURNAL, November 1997, Vol. 80(11)
Journal articles
Capital effectiveness of the paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)
Capital effectiveness of the paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)
Journal articles
Financial performance, capital expenditures, and international activities of the north american pulp and paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)
Financial performance, capital expenditures, and international activities of the north american pulp and paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)
Journal articles
The impact of web oven parameters on 20 degrees print gloss, TAPPI JOURNAL, October 1994, Vol. 77(10)
The impact of web oven parameters on 20 degrees print gloss, TAPPI JOURNAL, October 1994, Vol. 77(10)
Journal articles
Bleached fiber from occ, TAPPI JOURNAL, September 1994, Vol. 77(9)
Bleached fiber from occ, TAPPI JOURNAL, September 1994, Vol. 77(9)
Journal articles
Stability and chemical resistance of forming fabrics to wet-end boilout conditions, TAPPI JOURNAL, April 1995, Vol. 78(4)
Stability and chemical resistance of forming fabrics to wet-end boilout conditions, TAPPI JOURNAL, April 1995, Vol. 78(4)
Journal articles
Characterization of refined papermaking pulps using hydrodynamic parameters from filtration analysis, TAPPI JOURNAL May 2015
Characterization of refined papermaking pulps using hydrodynamic parameters from filtration analysis, TAPPI JOURNAL May 2015
Journal articles
Optimization of optical coverage of board surfaces with assessment of light scattering and absorption using mineral as a coating component, TAPPI Journal June 2026
ABSTRACT: One of the primary functions of mineral inclusion into paper or paperboard is to improve the optical performance of the substrate. A coating may be applied to a sheet in order to cover a dark base, to improve the sheet opacity, to give the correct smoothness and gloss, or to give a suitable surface on which to print. The brightness of a pigment has long been used as a guide for pigment choice in paper and board. However, the measured paper brightness is a function of color and light absorption (K) of the coating and base and the light scattering (S) within the sheet resulting from interfaces with different refractive index. The optical performance can be quantified by measuring the S&K coefficients as described by the Kubelka-Munk model/theory in a filled or coated paper sheet. In coating, this is often assessed as a function of coat weight, and the corresponding physical sheet properties are assessed at the same time; for example, the correct gloss, smoothness, point-to-point uniformity, and printability. The optical performance in the sheet is often not directly related to the pigment brightness, but is largely a function of the particle packing within the sheet and coating layer. In the first and second main sections of this work, respectively, we show how S&K calculations from the Kubelka- Munk equations can be used in coated sheets to determine the optical performance and how this can be used as a predictive tool for the final sheet performance. This is presented for base sheets with different starting brightness. The third section of this work focuses on how mineral combinations in coatings can be used to improve the light scattering and consequently the optical performance of the board. We include theoretical considerations and then finally share a case study for improvement on the optical properties of recycled board.
Journal articles
Magazine articles
Considerations in managing wastewater odor at pulp and paper operations, TAPPI Journal March 2022
ABSTRACT: Many pulp and paper mills are, at least periodically, faced with the release of odors that can migrate offsite and be considered a nuisance by nearby residents. At chemical pulp mills, perceptible odors associated with reduced sulfur compounds (RSCs) are common, many of which are highly perceptible owing to their low odor thresholds. As releases of RSCs and other odorous substances from production processes are progressively controlled, the proportional contribution from wastewater treatment systems to areal odors can increase. This review paper summarizes important fundamentals of odor generation, source identification, and control. Common odorous substances are identified, and mechanisms for their generation are summarized. Approaches for measuring odorous substances are detailed to enable more effective management, and various odor control strategies are discussed.