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Magazine articles
TAPPI JOURNAL November 1999; Vol. 82; No. 11 - 1999 Coating
TAPPI JOURNAL November 1999; Vol. 82; No. 11 - 1999 Coating and Graphic Arts Conference, TAPPI JOURNAL, November 1999, Vol. 82(11)
Magazine articles
TAPPI JOURNAL November 1999; Vol. 82; No. 11 - Industry Lead
TAPPI JOURNAL November 1999; Vol. 82; No. 11 - Industry Leaders: George Glatfelter Keeps Family-led Company Focused and Committed, TAPPI JOURNAL, November 1999, Vol. 82(11)
Magazine articles
TAPPI exhibit opens in epcot for the world to see, TAPPI JOU
TAPPI exhibit opens in epcot for the world to see, TAPPI JOURNAL, November 1999, Vol. 82(11)
Magazine articles
How will integrated gasification impact kraft pulping and chemical recovery, TAPPI JOURNAL, September 1999, Vol. 82(9)
How will integrated gasification impact kraft pulping and chemical recovery, TAPPI JOURNAL, September 1999, Vol. 82(9)
Magazine articles
International mechanical pulping conference, TAPPI JOURNAL,
International mechanical pulping conference, TAPPI JOURNAL, October 1999, Vol. 82(10)
Magazine articles
TAPPI view: a view to our future, TAPPI JOURNAL, September 1
TAPPI view: a view to our future, TAPPI JOURNAL, September 1999, Vol. 82(9)
Magazine articles
TAPPI view: renaissance for the millennium, TAPPI JOURNAL, S
TAPPI view: renaissance for the millennium, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
Magazine articles
Editorial: Reflections on the Page equation, laboratory work, and new concepts, TAPPI Journal May 2022
ABSTRACT: I began teaching paper physics to undergraduates in the late 1980s when the recognized giants in the field were still actively debating their subjects in the literature and scientific conferences.
Journal articles
Magazine articles
Improving refining efficiency with deflocculation, TAPPI Journal May 2022
ABSTRACT: The ability to load a refiner requires the formation of a fiber mat between opposing refiner bars. One of the consequences of this is the formation of flocs that persist through the refiner grooves and exit the refiner. These flocs interfere with sheet strength, requiring additional energy to make up the strength deficit. In addition, flocs can initiate string formation, resulting in machine efficiency issues such as cross-machine profile deterioration and the downtime required to correct it. Novel refiner plate modifications have been shown to improve refining efficiency in otherwise identical refiner plates. Energy savings are typically around 15% of gross refining energy on the basis of the treated stock, although much higher reductions have also been seen. Addressing this previously underappreciated flaw in conventional refining enables greenhouse gas reduction and other benefits related to sheet strength and machine efficiency.
Journal articles
Magazine articles
Web instability in the open draw and the impact on paper machine efficiency, TAPPI Journal May 2022
ABSTRACT: Paper is most likely to break in the first open draw on a paper machine where it is unsupported, wettest, and weakest. Tension is applied to peel the web from the roll surface, as well as minimize web flutter in the open draw. The average tension is well below the breaking point and is often set by adjusting the speed difference between the press and the next machine element by visually observing the behavior of the web. However, machine direction variations caused by instabilities in the paper machine can cause tension swings that exceed the strength of the web. Measurement of the web’s release point from press rolls on pilot and commercial paper machines was used to identify the cause of tension instabilities. Variations in the speed of the paper machine drives and the work of adhesion from the press roll surface were identified as key factors. Fluctuations of paper moisture, which affects the elastic modulus and strength of the web, appear to be less important.