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Magazine articles
Open Access
Editor's Note: An Ideal Raw Material for Pulp and Paper, TAP

Editor's Note: An Ideal Raw Material for Pulp and Paper, TAPPI JOURNAL March 2010

Magazine articles
Open Access
A waste management program for paper mill sludge high in ash, TAPPI JOURNAL, April 1990, Vol. 73(4)

A waste management program for paper mill sludge high in ash, TAPPI JOURNAL, April 1990, Vol. 73(4)

Magazine articles
Open Access
A financial analysis of north american pulp and paper companies, TAPPI JOURNAL, July 2000, Vol. 83(7)

A financial analysis of north american pulp and paper companies, TAPPI JOURNAL, July 2000, Vol. 83(7)

Magazine articles
Open Access
Managing technology - a critical contribution to competitiveness, TAPPI JOURNAL, June 2000, Vol. 83(6)

Managing technology - a critical contribution to competitiveness, TAPPI JOURNAL, June 2000, Vol. 83(6)

Magazine articles
Open Access
Mount st. helens - 20 years of recovery, TAPPI JOURNAL, May 2000, Vol. 83(5)

Mount st. helens - 20 years of recovery, TAPPI JOURNAL, May 2000, Vol. 83(5)

Magazine articles
Open Access
Pitfalls of trading market pulp on the internet, TAPPI JOURNAL, November 2000, Vol. 83(11)

Pitfalls of trading market pulp on the internet, TAPPI JOURNAL, November 2000, Vol. 83(11)

Magazine articles
Open Access
The role of science in setting the environmental agenda, TAPPI JOURNAL, September 2000, Vol. 83(9)

The role of science in setting the environmental agenda, TAPPI JOURNAL, September 2000, Vol. 83(9)

Magazine articles
Open Access
The r & t system: everyone is responsible for innovation, TAPPI JOURNAL, September 2000, Vol. 83(9)

The r & t system: everyone is responsible for innovation, TAPPI JOURNAL, September 2000, Vol. 83(9)

Magazine articles
Open Access
What does it take to get my paper published?, TAPPI JOURNAL,

What does it take to get my paper published?, TAPPI JOURNAL, March 2002, Vol. 1(1) (62KB)

Journal articles
Magazine articles
Open Access
Dynamic out-of-plane compression of paperboard — Influence of impact velocity on the surface, TAPPI Journal February 2024

ABSTRACT: Processes that convert paperboard into finished products include, for example, printing, where the paperboard is subjected to rapid Z-directional (ZD) compression in the print nip. However, measuring and evaluating the relevant properties in the thickness direction of paperboard are not necessarily straightforward or easy. Measuring at relevant, millisecond deformation rates further complicates the problem. The aim of the present work is to elucidate some of the influences on the compressive stiffness. Both the initial material response and the overall compressibility of the paperboard is studied. In this project, the effect on the material response from the surface structure and the millisecond timescale recovery is explored.The method utilized is a machine called the Rapid ZD-tester. The device drops a probe in freefall on the substrate and records the probe position, thus acquiring the deformation of the substrate. The probe is also allowed to bounce several times on the surface for consecutive impacts before being lifted for the next drop. To investigate the time dependent stiffness behavior, the probe is dropped several times at the same XY position on the paperboard from different heights, thus achieving different impact velocities. The material response from drops and bounces combined allows study of the short-term recovery of the material. The material in the study is commercial paperboard. The paperboard samples are compared to material where the surface has been smoothed by grinding it. Our study shows that there is a non-permanent reduction in thickness and a stiffening per bounce of the probe, indicating a compaction that has not recovered in the millisecond timescale. Additionally, a higher impact velocity has an initial stiffening effect on the paperboard, and this is reduced by smoothing the surface.

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