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Response of bagasse and wheat straw recycled pulps to refining, Solutions! & TAPPI JOURNAL, October 2004, Vol. 3(10) (349KB)

Response of bagasse and wheat straw recycled pulps to refining, Solutions! & TAPPI JOURNAL, October 2004, Vol. 3(10) (349KB)

Optimization of In-Refiner Brightening with H2O2 for Product

Optimization of In-Refiner Brightening with H2O2 for Production of High Brightness Mechanical Printing Paper, 1995 Pulping Conference Proceedings

TMP Mill Improvements Through Advances in Single Direction Refiner Plate Design, 1999 International Mechanical Pulping Conference Proceedings

TMP Mill Improvements Through Advances in Single Direction Refiner Plate Design, 1999 International Mechanical Pulping Conference Proceedings

A targeted approach to produce energy-efficient packaging materials from high-yield pulp, TAPPI Journal August 2025

ABSTRACT: Unlike fossil-based plastics, wood-based packaging materials can be produced in an ecofriendly manner using wood chip residuals from sawmills and pulpwood. To produce high-yield pulp like chemithermomechanical pulps (CTMPs) for paperboard and liquid packaging, it is crucial to reduce the electric energy consumption during fiber separation. The ultimate objective is to revolutionize paperboard production by achieving a middle-layer CTMP process that consumes less than 200 kilowatt-hours per metric ton (kWh/t), significantly improving from the current 500•600 kWh/t energy demand. Optimizing the CTMP impregnation process of sodium sulfite (Na2SO3) in wood chips is crucial for achieving uniform softening, ideally at the fiber level. The properties of the fibers are significantly affected by the content of lignin sulfonates within the walls of the fiber and the middle lamellae. In this study, we employed in-house developed X-ray fluorescence (XRF) techniques, validated by beamline measurements, to map the distribution of sulfonated lignin within fibers. It also seemed possible to enhance the surface area of lignin-rich pulp fibers while losing minimal bulk by refining them with well-optimized low consistency (LC) refining. We aimed to achieve a highly efficient separation of coniferous wood fibers by co-optimizing the sulfonation and the temperature in the preheater and chip refiner. Additionally, we explored how lignin’s softening behavior and potential crosslinking influence subsequent unit operations, including pressing, peroxide bleaching, and drying, following the defibration process. In defibration during chip refining, the maximum softening of wood fibers is preferred to maximize fiber preservation and minimize energy consumption. However, optimizing the stiffness of finished pulp fibers is preferable to reduce bulk loss during paperboard production. It can strive to optimize processes to develop stronger, lighter, and more sustainable composite packaging materials. Reducing environmental impact and electric energy can help create a more sustainable future.

Innovative Filling Design Driving Optimization of Dispersion Systems, 18PaperCon

Innovative Filling Design Driving Optimization of Dispersion Systems, 18PaperCon

A Systems Thinking Approach: Institutional Memory Loss in Pulp and Paper Industry, TAPPICon25

Vibrating foil improves paper properties, Solutions!, Online

Vibrating foil improves paper properties, Solutions!, Online Exclusives, October 2003

Introduction to Pulp and Paper Technology Course

This training event is among the highest rated of all TAPPI courses! Offers introductory- and intermediate-level content covering technology, including “what” happens, and “why” things happen. This course provides the foundation for learning advanced topics more quickly.

A tour of pm4 at kruger wayagamack, quebec, canada, Solution

A tour of pm4 at kruger wayagamack, quebec, canada, Solutions!, Online Exclusives, May 2003