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Root cause analysis of cationic polymer additive efficiency decline in virgin and recycle containerboard mills, TAPPI Journal January 2020

ABSTRACT: It is well known that retention, drainage and strength polymers struggle to perform (if at all) in virgin containerboard mills. In-depth studies have been undertaken in this area for more than seven years, investigating the issue from all directions. A key finding of this work is that soluble lignin is detrimental to chemical efficiency. A strong correlation exists between decreased chemical efficiency and high soluble lignin. Both recycled systems and virgin systems have been studied, and this correlation holds true regardless of furnish. The primary area of concern is virgin container-board, because these mills tend to have the highest lignin levels. Some highly closed recycled mills can also build elevated lignin levels that can negatively affect chemical efficiency.

Journal articles
Magazine articles
Open Access
Understanding conductivity and soda loss

Understanding conductivity and soda loss

Journal articles
Open Access
Bleaching optimization at WestRock mill in Covington, Virgi

Bleaching optimization at WestRock mill in Covington, Virginia, TAPPI JOURNAL September 2016

Journal articles
Open Access
Using white liquor as the alkali source in oxygen delignific

Using white liquor as the alkali source in oxygen delignification, TAPPI JOURNAL September 2016

Journal articles
Magazine articles
Open Access
Does the kappa number method accurately reflect lignin content in nonwood pulps?, TAPPI Journal November 2018

Does the kappa number method accurately reflect lignin content in nonwood pulps?, TAPPI Journal November 2018

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Magazine articles
Open Access
Rewet in wet pressing of paper, TAPPI JOURNAL September 2018

Rewet in wet pressing of paper, TAPPI JOURNAL September 2018

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Open Access
Static and dynamic sorption of lignin removed Populus euramericana, TAPPI JOURNAL February 2018

Static and dynamic sorption of lignin removed Populus euramericana, TAPPI JOURNAL February 2018

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Open Access
Contrasting underlying mechanisms of different barrier coating types, TAPPI Journal January 2018

Contrasting underlying mechanisms of different barrier coating types, TAPPI Journal January 2018

Journal articles
Magazine articles
Open Access
Effects of lignin chemistry on oxygen delignification performance, TAPPI JOURNAL July 2018

Effects of lignin chemistry on oxygen delignification performance, TAPPI JOURNAL July 2018

Journal articles
Magazine articles
Open Access
Lignin — a promising biomass resource, TAPPI JOURNAL March 2018

Lignin — a promising biomass resource, TAPPI JOURNAL March 2018

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