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Journal articles
Using multi-method analysis to identify challenging paper machine deposits and defects, TAPPI Journal March 2025
ABSTRACT: Based on its speed and versatility, Fourier transform infrared (FTIR) spectroscopy is the industry’s common starting point for analysis of a paper machine deposit or defect sample. However, certain contaminants and papermaking process additives cannot be precisely identified solely by infrared spectral interpretation. This lack of specificity could lead to a misinterpretation of the composition of the deposit or defect. A multi-method analysis uses data from two or more analytical techniques, including FTIR spectroscopy, microbiological staining/phase contrast microscopy, pyrolysis-gas chromatography/mass spectrometry (Pyro-GC/MS), and scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX), to produce a more specific assessment of a sample’s composition. This paper discusses the use of a multi-method analysis in deposit and defect analysis and presents several case studies that demonstrate how this comprehensive approach can often produce an interpretation result of greater conviction and value to the papermaker.
Journal articles
Editorial: The emergence of AI in additives development, TAPPI Journal March 2025
ABSTRACT: The continuing evolution of artificial intelligence (AI) and its penetration into the core of the world of papermaking were undeniable at TAPPICon 2024 and especially within the content presented and sponsored by TAPPI’s Papermaking Additives Committee. On one side of the spectrum, there were traditional methods of chemical development and application grounded in natural intelligence, while on the other, there was the emerging presence of algorithmic decision-making and machine learning within the development cycle. The latter technology is brimming with the kind of promise that could reshape how additives are conceived, developed, and applied, turning what was once a matter of trial and error into something far more precise and previously out of reach.
Journal articles
Application of AI-based approach to control the papermaking process, TAPPI Journal March 2025
ABSTRACT: This paper explores AI’s role in revolutionizing the pulp and paper industry, and specifically in predicting wet tensile strength (WTS) for specialty-grade papers. Leveraging eLIXA technology, a 90-day study achieved a 15% reduction in chemical dosage and an 80% decrease in wet tensile standard deviation. The real-time dosage prediction led to optimizing the wet strength resin (WSR) consumption and improved process reliability. The self-learning models exhibited adaptability to changing variables, ensuring their robustness. Overall, this study highlights AI’s transformative impact on efficiency, cost savings, and product quality within the dynamic landscape of papermaking. The approach used for wet strength optimization has been used to optimize other aspects of pulp and paper production.
Journal articles
Improved barrier performance with microfibrillated cellulose, TAPPI Journal March 2025
ABSTRACT: In this work, the impact of microfibrillated cellulose (MFC) on the properties of water-based barrier coatings intended for food packaging have been explored. Commercially available MFC was used for improving the rheology and water retention of three different commercially available dispersion coatings (acrylic, styrene acrylic, and polylactic acid). Coatings were applied by rod to paper, and barrier properties were tested by measuring air permeability and water barrier properties. Results clearly showed that addition of MFC to water-based dispersion coatings improved the barrier performance of the final coatings.
Journal articles
KCL-Pakka: A Tool for Simulating Paper Properties, TAPPI JOURNAL, May 1998, Vol. 81(5)
KCL-Pakka: A Tool for Simulating Paper Properties, TAPPI JOURNAL, May 1998, Vol. 81(5)
Journal articles
Using Confocal Microscopy to Characterize the Collapse Behavior of Fibers, TAPPI JOURNAL, May 1998, Vol. 81(5)
Using Confocal Microscopy to Characterize the Collapse Behavior of Fibers, TAPPI JOURNAL, May 1998, Vol. 81(5)
Journal articles
Paper friction influence of measurement conditions, TAPPI JOURNAL, May 1998, Vol. 81(5)
Paper friction influence of measurement conditions, TAPPI JOURNAL, May 1998, Vol. 81(5)
Journal articles
Comparing coating heads on a pilot coater: A call for reliable results, TAPPI JOURNAL, May 1998, Vol. 81(5)
Comparing coating heads on a pilot coater: a call for reliable results, TAPPI JOURNAL, May 1998, Vol. 81(5)
Journal articles
Rheological investigations of caco3 slurries in the metering nip of a metering size press, TAPPI JOURNAL, May 1998, Vol. 81(5)
Rheological investigations of caco3 slurries in the metering nip of a metering size press, TAPPI JOURNAL, May 1998, Vol. 81(5)
Journal articles
Coating structure for obtaining high print gloss, TAPPI JOURNAL, May 1998, Vol. 81(5)
Coating structure for obtaining high print gloss, TAPPI JOURNAL, May 1998, Vol. 81(5)