Search

TAPPI Journal Summaries, Paper360º September/October 2019

TAPPI Journal Summaries, Paper360º September/October 2019

TAPPI Journal Summaries, Paper360º July/August 2020

TAPPI Journal Summaries, Paper360º July/August 2020

TAPPI Journal Summaries, Paper360º May/June 2018

TAPPI Journal Summaries, Paper360º May/June 2018

TAPPI Journal Summaries, Paper360º January/February 2017

TAPPI Journal Summaries, Paper360º January/February 2017

TAPPI Journal Summaries, Paper360º January/February 2024

TAPPI Journal Summaries, Paper360º March/April 2020

TAPPI Journal Summaries, Paper360º March/April 2020

TAPPI Journal Summaries, Paper360º May/June 2020

TAPPI Journal Summaries, Paper360º May/June 2020

The winding mechanics of laminate webs, TAPPI Journal February 2020

ABSTRACT: Models that describe the residual stresses due to winding single-layer webs at the end of roll-to-roll manufacturing machines are mature. These models have been used to reduce or avoid defects that are due to winding. Many laminated products exist where two or more webs have been joined to form a thicker composite web. The properties of the web layers provide a unique functionality to the product being manufactured. No laminate winding models exist in the literature. This paper will focus on the development of a laminate winding model and laboratory test verification of the model.

We’ve Got Good Chemistry: Innovations Papermakers Need to Know About, Paper360º March/April 2020

We’ve Got Good Chemistry: Innovations Papermakers Need to Know About, Paper360º March/April 2020

Characterizing rheological behavior and fluidization of highly refined furnishes, TAPPI Journal April 2024

ABSTRACT: In this work, highly refined softwood bleached kraft pulp (SWBKP) furnishes, referred to here as XFC, were studied from the perspective of fiber suspension handling in processing. The rheology of the furnishes was studied with a rotational rheometer using a non-standard flow geometry to understand the viscosity development at different consistencies and the impact of temperature. For fluidization analysis during pipe flow, two optical methods were implemented; namely, optical coherence tomography (OCT) and high-speed video (HSV) imaging. The OCT was used to determine the small-scale floc structures near the pipe wall where the shear stress is highest, and the HSV imaging was applied for observing flow instabilities and XFC suspension uniformity at the pipe scale. All these issues can be significant in deciding the minimum flow rate required for a process pipe to get sufficient fluidization of XFC suspensions.