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Mitigating Electronic Corrosion in Modern Pulp and Paper Mills, TAPPICon26

Cell Configurations in the ANOVA Interaction Model to Identify Two-Dimensional Patterns in Reel Data, International Control Systems Conference (TAPPICon26)

LCA as a Catalyst: Driving Resiliency Innovation and Strategy through the Pulp & Paper Industry, TAPPICon26

Prioritizing Transformative Energy Efficiency Technologies in the Pulp and Paper Sector Through Levelized Cost of Conserved Energy, TAPPICon26

Optimization of the usage of oxygen in the O2 delignification process, TAPPICon26

Effect of Brownstock Washing and Carryover on the Function of the Oxygen Delignification Process, TAPPICon26

A pathway to large-scale surface modification of CNF-coated food serving containers made from lignocellulosic materials, Advanced Coating Symposium (TAPPICon26)

Deinking of Flexographic Newsprint, 2008 Engineering, Pulping and Environmental Conference

Deinking of Flexographic Newsprint, 2008 Engineering, Pulping and Environmental Conference

Viscoelastic web curl due to storage in wound rolls, TAPPI Journal July 2020

ABSTRACT: Winding is often the final operation in a roll-to-roll manufacturing process. Web materials, i.e., materials that are thin compared to their length, are wound into rolls because this form is the only practical means to store them. The resulting bending strains and associated stresses are large for thick webs and laminates. As many webs are viscoelastic on some time scale, bending stresses lead to creep and inhomogeneous changes in length. When the web material is unwound and cut into discrete samples, a residual curvature remains. This curvature, called curl, is the inability for the web to lie flat at no tension. Curl is an undesirable web defect that causes loss of productivity in a subsequent web process. This paper describes the development and implementation of modeling and experimental tools to explore and mitigate curl in homogenous webs. Two theoretical and numerical methods that allow the prediction of curl in a web are developed: a winding software based on bending recovery theory, and the implementation of dynamic simula-tions of winding. One experimental method is developed that directly measures the curl online by taking advantage of the anticlastic bending resulting from the curl. These methods are demonstrated for a low-density polyethylene web.

Reinforcement Learning Techniques To Support Industrial Process Control, TAPPICon25