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Journal articles
Magazine articles
Open Access
Editorial: The changing face of the coated paper industry, TAPPI JOURNAL January 2018

Editorial: The changing face of the coated paper industry, TAPPI JOURNAL January 2018

Journal articles
Magazine articles
Open Access
Contrasting underlying mechanisms of different barrier coating types, TAPPI Journal January 2018

Contrasting underlying mechanisms of different barrier coating types, TAPPI Journal January 2018

Journal articles
Magazine articles
Open Access
Print quality of flexographic printed paperboard related to coating composition and structure, TAPPI Journal January 2018

Print quality of flexographic printed paperboard related to coating composition and structure, TAPPI Journal January 2018

Journal articles
Open Access
The Effectiveness of TAED on the Peroxide Bleaching

The Effectiveness of TAED on the Peroxide Bleaching of Mechanical, Chemical, and Recycled Pulp

Journal articles
Open Access
Introducing molasses as a new additive in papermaking, TAPPI JOURNAL, August 2007

Introducing molasses as a new additive in papermaking, TAPPI JOURNAL, August 2007

Journal articles
Open Access
Spectroscopic imaging ellipsometry of wood fiber cell walls: a comparison with confocal microscopy, TAPPI JOURNAL, August 2007

Spectroscopic imaging ellipsometry of wood fiber cell walls: a comparison with confocal microscopy, TAPPI JOURNAL, August 2007

Journal articles
Open Access
A study of in-plane and z-direction strength of coating layers with varying latex content, TAPPI JOURNAL December 2007

A study of in-plane and z-direction strength of coating layers with varying latex content, TAPPI JOURNAL December 2007

Journal articles
Open Access
Blended amphoteric PAMs: Hight performance as retention aids, TAPPI JOURNAL December 2007

Blended amphoteric PAMs: Hight performance as retention aids, TAPPI JOURNAL December 2007

Journal articles
Open Access
A method for evaluating ink mileage in gravure printing, TAPPI JOURNAL December 2007

A method for evaluating ink mileage in gravure printing, TAPPI JOURNAL December 2007

Journal articles
Magazine articles
Open Access
Upscaling of foam forming technology for pilot scale, TAPPI JOURNAL August 2019

ABSTRACT: The need for production cost savings and changes in the global paper and board industry during recent years have been constants. Changes in the global paper and board industry during past years have increased the need for more cost-efficient processes and production technologies. It is known that in paper and board production, foam typically leads to problems in the process rather than improvements in production efficiency. Foam forming technology, where foam is used as a carrier phase and a flowing medium, exploits the properties of dispersive foam. In this study, the possibility of applying foam forming technology to paper applications was investigated using a pilot scale paper forming environment modified for foam forming from conventional water forming. According to the results, the shape of jet-to-wire ratios was the same in both forming methods, but in the case of foam forming, the achieved scale of jet-to-wire ratio and MD/CD-ratio were wider and not behaving sensitively to shear changes in the forming section as a water forming process would. This kind of behavior would be beneficial when upscaling foam technology to the production scale. The dryness results after the forming section indicated the improvement in dewatering, especially when foam density was at the lowest level (i.e., air content was at the highest level). In addition, the dryness results after the pressing section indicated a faster increase in the dryness level as a function of foam density, with all density levels compared to the corresponding water formed sheets. According to the study, the bonding level of water- and foam-laid structures were at the same level when the highest wet pressing value was applied. The results of the study show that the strength loss often associated with foam forming can be compensat-ed for successfully through wet pressing.

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