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Journal articles
Open Access
Thermal stability of paper fillers: a strong case for a low temperature paper ashing, TAPPI JOURNAL, March 1996, Vol. 79(3)

Thermal stability of paper fillers: a strong case for a low temperature paper ashing, TAPPI JOURNAL, March 1996, Vol. 79(3)

Journal articles
Open Access
Effect of basestock formation on paper coating, TAPPI JOURNAL, May 1996, Vol. 79(5)

Effect of basestock formation on paper coating, TAPPI JOURNAL, May 1996, Vol. 79(5)

Journal articles
Open Access
Consolidation of pigmented coatings: development of porous structure, TAPPI JOURNAL, May 1996, Vol. 79(5)

Consolidation of pigmented coatings: development of porous structure, TAPPI JOURNAL, May 1996, Vol. 79(5)

Journal articles
Open Access
Coating with patterned rolls and rods, TAPPI JOURNAL, May 1996, Vol. 79(5)

Coating with patterned rolls and rods, TAPPI JOURNAL, May 1996, Vol. 79(5)

Journal articles
Open Access
Sampling error in measurement of dirt in pulp and paper, TAPPI JOURNAL, May 1996, Vol. 79(5)

Sampling error in measurement of dirt in pulp and paper, TAPPI JOURNAL, May 1996, Vol. 79(5)

Journal articles
Open Access
Cluster rule nears the end of the tunnel, TAPPI JOURNAL, May 1996, Vol. 79(5)

Cluster rule nears the end of the tunnel, TAPPI JOURNAL, May 1996, Vol. 79(5)

Journal articles
Open Access
Press section performance, TAPPI JOURNAL, November 1996, Vol. 79(11)

Press section performance, TAPPI JOURNAL, November 1996, Vol. 79(11)

Journal articles
Open Access
Reviewing a technology that avoids premounting printing plates, TAPPI JOURNAL, November 1996, Vol. 79(11)

Reviewing a technology that avoids premounting printing plates, TAPPI JOURNAL, November 1996, Vol. 79(11)

Journal articles
Magazine articles
Open Access
A case study review of wood ash land application programs in North America, TAPPI Journal February 2021

ABSTRACT: Several regulatory agencies and universities have published guidelines addressing the use of wood ash as liming material for agricultural land and as a soil amendment and fertilizer. This paper summarizes the experiences collected from several forest products facility-sponsored agricultural application programs across North America. These case studies are characterized in terms of the quality of the wood ash involved in the agricultural application, approval requirements, recommended management practices, agricultural benefits of wood ash, and challenges confronted by ash generators and farmers during storage, handling, and land application of wood ash.Reported benefits associated with land-applying wood ash include increasing the pH of acidic soils, improving soil quality, and increasing crop yields. Farmers apply wood ash on their land because in addition to its liming value, it has been shown to effectively fertilize the soil while maintaining soil pH at a level that is optimal for plant growth. Given the content of calcium, potassium, and magnesium that wood ash supplies to the soil, wood ash also improves soil tilth. Wood ash has also proven to be a cost-effective alternative to agricultural lime, especially in rural areas where access to commercial agricultural lime is limited. Some of the challenges identified in the review of case studies include lengthy application approvals in some jurisdictions; weather-related issues associated with delivery, storage, and application of wood ash; maintaining consistent ash quality; inaccurate assessment of required ash testing; potential increased equipment maintenance; and misconceptions on the part of some farmers and government agencies regarding the effect and efficacy of wood ash on soil quality and crop productivity.

Journal articles
Open Access
A method to produce paperboard with a lightweight low-density coating, TAPPI Journal November 2025

ABSTRACT: In this work, a method is described in which a coating layer is produced that consists of a network of bubble-shaped air-filled voids within the coating. This is accomplished by instantaneously flash-drying all the water in the coating as it exits the application nip. The nip is formed between a polished chrome drum and a deformable press roll. The combination of the drum temperature, nip pressure, and nip width allow for sufficient energy to be transferred to the coating to completely flash-dry the coating material. The pressure within the nip is sufficient to allow the coating to superheat within the nip, then flash boil as it exits the nip. This boiling effect and resulting expansion are constrained by the roll surface, resulting in a coated surface that mirrors the polished chrome surface. The coating immobilizes while in the process of boiling, which preserves the bubble structure. With a coat weight of 5 g/m2, a flat, smooth surface is produced. This process was scaled up to a mill production machine layout and run at speeds as high as 450 m/min.

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