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On-machine visible dirt measurement on moving sheets and the relationships to standard laboratory methods, TAPPI Journal August 2020

ABSTRACT: There has been a proliferation of new sensors to measure on-machine dirt specks that employ different technologies and methodologies to perform measurements. The differences in the on-machine technologies are discussed in terms of the TAPPI and ISO standard laboratory test methods with respect to dirt detection using light reflected from, or light transmitted through, the sheet. Also discussed are the requirements for measuring sta-tistically representative areas of the sheet; the difference between the dirt physical size and Equivalent Black Area (EBA) size; and the implication of these issues when specifying cleanliness acceptance criteria.This technical brief describes on-machine visible dirt measurement’s relationship to standard laboratory testing.

Journal articles
Magazine articles
Standards
Open Access
Relating bending stiffness measurements across various free span lengths, TAPPI Journal August 2020

ABSTRACT: Bending stiffness should be an intrinsic property of a material, so it is puzzling that the TAPPI Standard Test Method T 836 “Bending stiffness, four point method” specifies span lengths when testing different types of corrugated fiberboard. These specified spans often limit the samples that can be measured with this method. To better understand the relationship between bending stiffness and span length, we performed measurements on a range of materials at different spans. The results provide a practical tool enabling comparison of bending stiffness measurements made at various span lengths. Additionally, this note discusses several areas that could serve as the foundation for more fundamental work exploring the bending behavior of corrugated board.

Journal articles
Magazine articles
Open Access
Editorial: Looking back and looking forward: Paper physics and the paper industry, TAPPI Journal October 2018

Editorial: Looking back and looking forward: Paper physics and the paper industry, TAPPI Journal October 2018

Journal articles
Magazine articles
Open Access
From biorefineries to bioproducts: conversion of pretreated pulp from biorefining streams to lignocellullose nanofibers, TAPPI Journal April 2019

ABSTRACT: This study investigates the use of pretreatment and enzymatic hydrolysis side streams and conver-sion to lignocellulose nanofibers. We used a steam-exploded and partial enzymatic hydrolyzed hardwood pulp and an organosolv pretreated softwood pulp to prepare lignocellulose nanofibers (LCNF) via microfluidization. The ener-gies applied on fibrillation were estimated to examine the energy consumption levels of LCNF production. The ener-gy consumptions of the fibrillation processes of the hardwood LCNF production and the softwood LCNF production were about 7040-14080 kWh/ton and 4640 kWh/ton on a dry material basis, respectively. The morphology and dimension of developed hardwood and softwood LCNFs and the stability and rheological behavior of their suspen-sions were investigated and are discussed.

Journal articles
Magazine articles
Open Access
Editorial: Foam forming: Technology of many opportunities, TAPPI JOURNAL August 2019

ABSTRACT: Over the past ten years, the forest sector has faced big changes due to the decreased demand of printing papers and the fast growth in packaging and tissue products. Weekly news on the marine waste problem and global warming have raised public awareness and stimulated increased interest in bio-based materials, chemicals, and fuels.

Journal articles
Magazine articles
Open Access
Editorial: Remembering Phil Clark: A Coating “Master Man”, TAPPI JOURNAL July 2018

Editorial: Remembering Phil Clark: A Coating “Master Man”, TAPPI JOURNAL July 2018

Journal articles
Magazine articles
Open Access
Effect of pH and enzymes on strength of recycled fibers during refining, TAPPI JOURNAL July 2018

Effect of pH and enzymes on strength of recycled fibers during refining, TAPPI JOURNAL July 2018

Journal articles
Magazine articles
Open Access
Editorial: TAPPI Journal 2017 Best Research Paper Award recognizes recycling technology, TAPPI JOURNAL June 2018

Editorial: TAPPI Journal 2017 Best Research Paper Award recognizes recycling technology, TAPPI JOURNAL June 2018

Journal articles
Magazine articles
Open Access
Controlling porosity and density of nanocellulose aerogels for superhydrophobic light materials, TAPPI JOURNAL March 2018

Controlling porosity and density of nanocellulose aerogels for superhydrophobic light materials, TAPPI JOURNAL March 2018

Journal articles
Magazine articles
Open Access
TAPPI Journal 2016 Best Research Paper Award: Mining Big Dat

TAPPI Journal 2016 Best Research Paper Award: Mining Big Data to improve pulping and papermaking operations, TAPPI JOURNAL April 2017

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