Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Event Type
Collections
Development of paper quality parameter measurement in China, TAPPI Journal May 2022
ABSTRACT: Paper quality parameters are important indicators of paper production, such as paper moisture, basis weight, ash content, strength, and so on. This study focuses on the online measurement methods and development of paper basis weight, moisture, and ash measuring. First, the measurable paper parameters and quality control system products in China are analyzed. Then, the basis weight measurement methods, accuracy, and development are given in the range of 10~1000 g/m2. Third, the distinction between infrared and microwave methods for moisture measurement is discussed. Finally, the ash measurement is introduced. Production and consumption of tissue paper in China have continually increased during the past decade. Near-infrared light technology is mature for the measurement of paper parameters in the range of 10~200 g/m2 basis weight. However, the near-infrared online measurement of tissue paper is not widely used, and few tissue paper lines are equipped with this type of quality control system in China. Therefore, technology for near-infrared measurement of basis weight has a great potential market in the field of tissue paper production. This article analyzes the future development trend of near-infrared light in tissue paper basis weight measurement and summarizes the difficulties in near-infrared light measurement of tissue paper basis weight.
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.
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.
News
Bioenergy Technologies Office Allocates US$1 Million for Round 2 of the DOE’s Small Business Vouchers Pilot
The U.S. Department of Energy (DOE) Small Business Vouchers (SBV) Pilot, which is part of DOE’s Office of Energy Efficiency and Renewable Energy’s (EERE’s) National Laboratory Impact Initiative, in collaboration with national laboratories, supports small businesses to advance energy technology and help transform our biomass resources into commercially successful, high-performance biofuels, bioproducts, and biopower.
News
Bringing the safety message home: PPSA annual meeting meets the challenge of change
Moving to Mobile for its 73rd annual event, the Pulp & Paper Safety Association (PPSA) conference program touched all the bases, practical and theoretical, and then some. Nancy Garry, HRP Associates, also led a full day session dealing with the fundamentals of OSHA compliance in the paper industry.
News
Top 6 Coolest Things About the Paper Industry
Sarah Dawkins, Solenis TAPPI’s Young Professionals Division promotes the future of our industry by recognizing members’ creativity and drive while encouraging them to become more personally involved in the industry. As our future leaders and innovators, we’ve invited members of the YP Division to share their insights with Ahead of the Curve readers.
News
Paper Industry Hall of Fame Honors Six
“To celebrate all things paper – the wonder and the legacy” is the established mission of the Paper Industry International Hall of Fame in Appleton, Wisconsin. Since its first induction ceremony in 1995, the Hall of Fame has worked to recognize individuals who, through their inventions, initiative and efforts, have built or improved paper and allied industries worldwide.
News
Creating 3D-printed prostheses from forest raw materials
How can an artificial limb be made a little less… artificial? When it is produced using renewable forest materials to create a highly-customizable, more environmentally-friendly prosthetic at a more reasonable cost for patients and providers.
News
An early glimpse at APP’s OKI Mill, Sumatra
This look at APP’s new mill, due to open later this year in Ogan Komering Ilir (OKI), South Sumatra, is an excerpt from a feature appearing in the upcoming July/August issue of Paper360° and is offered here as a preview for Ahead of the Curve readers.
News
UK exit likely to have very limited near-term effects on the pulp market
Kurt Schaefer, RISI The UK voted in June to exit the European Union, surprising most observers and raising many questions and concerns.