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Journal articles
Open Access
Changes in solid particle fractions of coating color in low- and high-speed blade coating, TAPPI JOURNAL June 2013

Changes in solid particle fractions of coating color in low- and high-speed blade coating, TAPPI JOURNAL June 2013

Journal articles
Open Access
Editorial: TAPPI Fellows: A distinguished industry group, TAPPI JOURNAL May 2013

Editorial: TAPPI Fellows: A distinguished industry group, TAPPI JOURNAL May 2013

Journal articles
Open Access
Coat weight control in bent blade mode, TAPPI JOURNAL May 2013

Coat weight control in bent blade mode, TAPPI JOURNAL May 2013

Journal articles
Open Access
Modeling of Bagginess Due to Storage of Paper Reels With Ridges, TAPPI JOURNAL September 2009

Modeling of Bagginess Due to Storage of Paper Reels With Ridges, TAPPI JOURNAL September 2009

Journal articles
Open Access
Application of Imaging Reflectometry to Studies of Print Mottle on Commercially Printed Coated Papers, TAPPI JOURNAL January 2008

Application of Imaging Reflectometry to Studies of Print Mottle on Commercially Printed Coated Papers, TAPPI JOURNAL January 2008

Journal articles
Open Access
The influence of paper surface energy on multicolor offset print mottling, TAPPI JOURNAL February 2013

The influence of paper surface energy on multicolor offset print mottling, TAPPI JOURNAL February 2013

Journal articles
Open Access
Editorial: Revisiting recycling forums past, TAPPI JOURNAL J

Editorial: Revisiting recycling forums past, TAPPI JOURNAL January 2016

Journal articles
Open Access
Does kraft hardwood and softwood pulp viscosity correlate to

Does kraft hardwood and softwood pulp viscosity correlate to paper properties?, October 2016 TAPPI JOURNAL

Journal articles
Magazine articles
Open Access
Creating adaptive predictions for packaging-critical quality parameters using advanced analytics and machine learning, TAPPI Journal November 2019

ABSTRACT: Packaging manufacturers are challenged to achieve consistent strength targets and maximize pro-duction while reducing costs through smarter fiber utilization, chemical optimization, energy reduction, and more. With innovative instrumentation readily accessible, mills are collecting vast amounts of data that provide them with ever increasing visibility into their processes. Turning this visibility into actionable insight is key to successfully exceeding customer expectations and reducing costs. Predictive analytics supported by machine learning can provide real-time quality measures that remain robust and accurate in the face of changing machine conditions. These adaptive quality “soft sensors” allow for more informed, on-the-fly process changes; fast change detection; and process control optimization without requiring periodic model tuning.The use of predictive modeling in the paper industry has increased in recent years; however, little attention has been given to packaging finished quality. The use of machine learning to maintain prediction relevancy under ever-changing machine conditions is novel. In this paper, we demonstrate the process of establishing real-time, adaptive quality predictions in an industry focused on reel-to-reel quality control, and we discuss the value created through the availability and use of real-time critical quality.

Journal articles
Magazine articles
Open Access
Critical parameters for tall oil separation I: The importance of ration of fatty acids to rosin acids, TAPPI Journal September 2019

ABSTRACT: Tall oil is a valuable byproduct in chemical pulping of wood, and its fractions have a large spectrum of applications as chemical precursors, detergents, and fuel. High recovery of tall oil is important for the economic and environmental profile of chemical pulp mills. The purpose of this study was to investigate critical parameters of tall oil separation from black liquor. To investigate this in a controlled way, we developed a model test system using a “synthetic” black liquor (active cooking chemicals OH- and HS- ions), a complete process for soap skimming, and determination of recovered tall oil based on solvent extraction and colorimetric analysis, with good reproducibility. We used the developed system to study the effect of the ratio of fatty acids to rosin acids on tall oil separation. When high amounts of rosin acids were present, tall oil recovery was low, while high content of fatty acids above 60% significantly promoted tall oil separation. Therefore, manipulating the content of fatty acids in black liquor before the soap skimming step can significantly affect the tall oil solubility, and hence its separation. The findings open up chemical ways to improve the tall oil yield.

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