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Journal articles
88oct155
Multi-ply sheet formation on inclined-wire formers, TAPPI JOURNAL October 1988
Journal articles
88oct163
Measuring oxygen transmission rates of packaging films under humid conditions, TAPPI JOURNAL October 1988
Journal articles
88oct173
The effect of grafting on the paper properties of wood pulp, TAPPI JOURNAL October 1988
Journal articles
88oct62
Towards an international standard method for the edgewise compression test of corrugated board-a second opinion, TAPPI JOURNAL October 1988
Journal articles
88oct83
Cut-Size paper packaging of the "80s and beyond, TAPPI JOURNAL October 1988
Journal articles
Magazine articles
Efficiency is Key for High Capacities, Paper360º March/April 2022
Efficiency is Key for High Capacities, Paper360º March/April 2022
Journal articles
Magazine articles
Meet ASPI’s 2022 Awards Recipients, Paper360º March/April 2022
Meet ASPI’s 2022 Awards Recipients, Paper360º March/April 2022
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.