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Magazine articles
Creasing severity and reverse-side cracking, TAPPI Journal April 2020
ABSTRACT: Crease cracking can be detrimental to the functionality and appearance of paperboard-based packaging. The effect of creasing severity on the degree of reverse-side crease cracking (bead-side of the crease) of paperboard was investigated. Samples were creased with a range of rule and channel geometries, and the cracking degree was quantified as the percent of cracked length relative to the total length of the crease. The cracking degree was typically below 5% at low crease penetration depths, but was exponentially higher beyond a critical penetration depth. A rule and channel combination with a wider clearance shifted the critical depth to larger values. The creasing severity parameter, termed the creasing draw, converged the cracking degree data from different rule and channel combinations to a single curve. The creasing draw was derived from the same analytical expres-sions as the transverse shear strain and quantifies the length of paper that is drawn into the channel during creasing. The critical draw is defined as the draw at which cracking becomes greater than 5%, which corresponds with the point at which cracking becomes exponential. The critical draw is a material/system parameter that defines the level below which cracking is minimal.
Journal articles
Editorial: Revisiting recycling forums past, TAPPI JOURNAL J
Editorial: Revisiting recycling forums past, TAPPI JOURNAL January 2016
Magazine articles
How to use alum with cationic dispersed rosin size, TAPPI JO
How to use alum with cationic dispersed rosin size, TAPPI JOURNAL May 2016
Journal articles
Magazine articles
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
Effect of conductivity on paper and board machine performanc
Effect of conductivity on paper and board machine performance— a review and new experiences, TAPPI JOURNAL October 2017
Journal articles
Sizing performance and hydrolysis resistance of alkyl oleate succinic anhydrides, Solutions! & TAPPI JOURNAL, July 2004, Vol. 3(7) (251KB)
Sizing performance and hydrolysis resistance of alkyl oleate succinic anhydrides, Solutions! & TAPPI JOURNAL, July 2004, Vol. 3(7) (251KB)
Journal articles
Evaluation of cut quality of woodfree coated papers, TAPPI JOURNAL September 2013
Evaluation of cut quality of woodfree coated papers, TAPPI JOURNAL September 2013
Journal articles
Role of particle size and preflocculation of talc in improvement of paper properties, TAPPI JOURNAL April 2014
Role of particle size and preflocculation of talc in improvement of paper properties, TAPPI JOURNAL April 2014
Journal articles
Effect of reduced pulp xylan content on wet end chemistry and paper properties â?? a pilot scale study, TAPPI JOURNAL February 2014
Effect of reduced pulp xylan content on wet end chemistry and paper properties — a pilot scale study, TAPPI JOURNAL February 2014
Journal articles
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