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Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º January/February 2017

TAPPI Journal Summaries, Paper360º January/February 2017

Journal articles
Magazine articles
Riding the Rails, Paper360º, July/August 2017

Riding the Rails, Paper360º, July/August 2017

Journal articles
Magazine articles
Paper Chemistry: What’s New, What’s Next, Paper360º March/

Paper Chemistry: What’s New, What’s Next, Paper360º March/April 2017

Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º May/June 2018

TAPPI Journal Summaries, Paper360º May/June 2018

Journal articles
Magazine articles
The PPI Top 100, Paper360º September/October 2017

The PPI Top 100, Paper360º September/October 2017

Journal articles
Magazine articles
TAPPI JOURNAL Summaries, Paper360º September/October 2017

TAPPI JOURNAL Summaries, Paper360º September/October 2017

Journal articles
Magazine articles
Wood Pulp: The New Cotton for the Garment Industry?, Paper360 May/June 2019

Wood Pulp: The New Cotton for the Garment Industry?, Paper360 May/June 2019

Journal articles
Magazine articles
To Canfor, Pulp is Much More than a Commodity, Paper360º September/October 2019

To Canfor, Pulp is Much More than a Commodity, Paper360º September/October 2019

Journal articles
Magazine articles
Open Access
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.

Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º July/August 2020

TAPPI Journal Summaries, Paper360º July/August 2020

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