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Journal articles
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TAPPI News, Paper360º January/February 2020

TAPPI News, Paper360º January/February 2020

Journal articles
Magazine articles
Open Access
Editorial: Vamsi Jasti: New nonwovens expert joins TAPPI Journal editorial board, TAPPI Journal July 2020

ABSTRACT: TAPPI and the TAPPI JOURNAL (TJ) editorial staff would like to welcome a new member to the TJ Editorial Board, Vamsi Krishna Jasti, Ph.D., a nonwovens product development scientist and product development manager at Ahlstrom-Munksjo Nonwovens LLC in Windsor Locks, CT, USA. He has more than 10 years of professional and academic experience n the area of fibert processing, product development, nonwovens processing, surface modification, and static electrification in countries ranging from India and Germany to China and the United States.

Journal articles
Magazine articles
Over the Wire Summaries, Paper360º July/August 2020

Over the Wire Summaries, Paper360º July/August 2020

Journal articles
Magazine articles
The Paper360° 2020 TOP 50 POWER LIST, Paper360º July/August 2020

The Paper360° 2020 TOP 50 POWER LIST, Paper360º July/August 2020

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Magazine articles
Use of Ozone for Cooling Towers. Paper360º July/August 2020

Use of Ozone for Cooling Towers. Paper360º July/August 2020

Journal articles
Magazine articles
Coronavirus to Alter Global Toilet Paper & Tissue Production, Paper360º July/August 2020

Coronavirus to Alter Global Toilet Paper & Tissue Production, Paper360º July/August 2020

Journal articles
Magazine articles
Open Access
Guest Editorial: Fifty years with TAPPI: A personal and professional perspective, TAPPI Journal June 2020

ABSTRACT: While reflecting on this being my 50th year in TAPPI, it dwaned on me that my father Murray must also have been a TAPPI member for a similar length of time and that he probably joined TAPPI for the same reasons--we both had just started our first jobs in the pulp and paper industry and wanted to learn ecerything we could about the underlying technology.

Journal articles
Magazine articles
Open Access
Editorial: TAPPI Journal 2019 Best Research Paper addresses hard scale formation in green liquor pipelines, TAPPI Journal March 2020

ABSTRACT: TAPPI and the TAPPI Journal (TJ) Editorial Board would like congratulate the authors of the 2019 TAPPI Journal Best Research Paper Award: Alisha Giglio, Vladimiros Papangelakis, and Honghi Tran. Their paper, “The solubility of calcium carbonate in green liquor handling systems,” appeared on p. 595 of the October 2019 issue. This kraft recovery cycle research was recognized by the TJ Editorial Board for its innovation, creativity, scientific merit, and clear expression of ideas.

Journal articles
Magazine articles
Open Access
Editorial: Looking forward, looking back, TAPPI Journal January 2022

ABSTRACT: Much like 2020, 2021 was another year of remarkable highs and lows delivered by the COVID-19 pandemic. Vaccines, variants, and infection surges altered the way we behaved personally and professionally last year. As we move into 2022, we are now grappling with health and business concerns from the omicron variant that has overwhelmed hospitals in some areas and contributed to a global supply chain crisis. The ability to adjust has once again become a key skill in adapting to our shifting “new normal.”

Journal articles
Magazine articles
Open Access
Preparing prehydrolyzed kraft dissolving pulp via phosphotungstic acid prehydrolysis from grape branches, TAPPI Journal January 2022

ABSTRACT: Dissolving pulp was successful prepared via phosphotungstic acid (PTA) prehydrolysis kraft (PHK) cooking followed by an elementary chlorine-free (ECF) bleaching process from grape branches. The effects of prehydrolysis temperature, reaction time, and PTA concentration that potentially affect the quality of dissolving pulp product on chemical components of pulp were studied via an orthogonal experiment. The structure of lignin was activated during the PTA prehydrolysis phase, and lignin was easily removed during the following cooking process. Thus, relatively mild conditions (140°C, 100 min) can be used in the cooking process. During the prehydrolysis phase, temperature exhibited the most significant influence on the cellulose purity of the obtained pulp fiber, followed by reaction time and PTA concentration. The optimized prehydrolysis conditions were as follows: prehydrolysis temperature, 145°C; reaction time, 75 min; and PTA concentration, 1 wt%. Whether the excessively high prehydrolysis temperature or prolonging the reaction time did not favor the retention of long chain cellulose, the delignification selectivity for the cooking process could not be further improved by excessive PTA loading. Under these prehydrolysis conditions, 94.1% and 29.0% for a-cellulose content and total yield could be achieved after the given cooking and bleaching conditions, respectively. Moreover, the chemical structure and crystal form of cellulose were scarcely changed after PTA prehydrolysis, which could be confirmed by results from Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). PTA prehydrolysis could be considered as an alternative method for preparing PHK dissolving pulp under relatively mild cooking conditions.

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