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News
Best Papers highlight new research in Coating & Graphic Arts, Process Control
By Monica Shaw (The following is excerpted from the June, 2017 issue of TAPPI Journal, an industry-leading peer-reviewed research publication available every month to TAPPI members.)
News
TJ 2016 Best Research Paper: Mining Big Data to improve pulping and papermaking operations
By Monica Shaw TAPPI and the TAPPI Journal (TJ) Editorial Board have selected the 2016 TAPPI Journal Best Research Paper Award winning paper: “Leveraging mill-wide big data sets for process and quality improvement in paperboard production,” authored by Jianzhong Fu and Peter W. Hart. The paper appeared on p. 309 of the May 2016 issue. This research was recognized by the Editorial Board for its innovation, creativity, scientific merit, and clear expression of ideas among the eight nominated papers.
News
Paper Airplane Day is a thing, and it’s terrific
We all love holidays, but we gripe about them too: Long drives through snowstorms. Over-commercialization. Weird sweaters. Diet-busting meals that take forever to prepare and clean up after. True, “the holidays” offer a great reason to gather for fun with family and friends—but most holidays don’t focus the fun nearly enough on something that really matters to Ahead of the Curve readers: PAPER. What if you could celebrate a holiday with none of the hassle, but ALL of the paper? That’s National Paper Airplane Day.
News
Women in Manufacturing: Making an Impact
The Manufacturing Institute, Deloitte and APICS have released a study titled “Women in Manufacturing: Stepping up to make an impact that matters.”
News
APPI plants trees to commemorate its 100th anniversary
To help celebrate its 100th anniversary in 2015, TAPPI, along with RockTenn, Valmet, TREES Atlanta, and members of the Dekalb County community, planted 100 trees in Decatur, Georgia.
News
TAPPI's southeast Ambassador's program identifies knowledge that pulp mills need
Earlier this year, TAPPI members and staff visited several pulp mills in the southeastern U.S., as part of the TAPPI Ambassador program.
News
Latest NPTA Quarterly Paper Industry Economic Outlook Report Provides Insights on 2015 and Beyond
NPTA, the association for the paper distribution channel, recently released the winter 2015 Quarterly Paper Industry Economic Outlook Report which included macroeconomic data to specific product categories directly related to the paper, print and publishing industries.
News
Engineered Softwood Could Transform Pulp, Paper, Biofuel Industries
April 20, 2015. Scientists today demonstrated the potential for softwoods to process more easily into pulp and paper if engineered to incorporate a key feature of hardwoods.
Journal articles
Water and grease resistance of paperboard coated with long chain cellulose fatty acid esters using electrostatic powder coating, TAPPI Journal April 2026
ABSTRACT: Fiber-based materials used for foodservice, takeaway, and other packaging applications must typically provide water and grease resistance. Simultaneously, there is growing interest towards bio-based and renewable barrier coatings. In this study we applied thermoplastic long chain fatty acid cellulose esters onto paperboard using electrostatic powder coating to create barrier properties of interest. Electrostatic powder coating provides a water-free process to tackle moisture-induced quality issues and to provide an even coating layer. Cellulose octanoate and palmitate esters were produced in pilot scale. These were ground into fine particles using liquid nitrogen and applied onto paperboard sheets using an electrostatic powder gun. The loosely packed coatings were fixed and fused onto the paperboard by hot pressing. We characterized the coated sheets for coating thickness, contact angles with water, water absorption, grease resistance (KIT), and olive oil barrier. Two commercial polyethylene powders were used as references. Our results indicated that the long chain cellulose fatty acid ester coatings were thermoplastic and hydrophobic with contact angles above 100°. Water absorption was similar to the reference coatings. While grease resistance was lower than with the references, the cellulose ester coatings slowed down diffusion of olive oil through the paperboard. Cellulose octanoate ester with a lower melt viscosity already provided smooth coatings after the initial hot pressing step, while in most cases, the second post hot pressing step further improved the barrier properties.
Journal articles
Permeability simulation for filled paper based on three-dimensional structural model developed by X-ray computed tomography scanning, TAPPI Journal March 2026
ABSTRACT: In this study, an in-depth exploration of filled paper was conducted to understand its structural and permeability characteristics. Cotton linter pulp and precipitated calcium carbonate (PCC) filler were utilized to prepare pure fiber paper, and PCC1 and PCC2 filled papers with different filler particle sizes. Then, the pore structure parameters of paper samples were characterized by mercury intrusion porosimetry, and the X-ray computed tomography (X-CT) scanning was carried out. Subsequently, the 3D microstructures were established based on the X-CT slice images, and the filler characteristic parameters and filler 3D distribution were quantitatively analyzed. Finally, permeation simulations in the thickness and horizontal directions were performed. The findings indicate that filling changes the paper porosity, and the pore tortuosity varies with direction. The estimated pore•throat radius distribution shows specific patterns for different papers. The fillers have different distribution characteristics in the paper samples. Moreover, the paper permeability differs with direction, with smallsized filler having a significant impact on fluid penetration in the thickness direction. Overall, this study provides an effective method for investigating internal paper filler and its distribution, which contributes to the understanding of paper structure•performance relationships.