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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
Open Access
Upgrading OCC and Recycled Liner Pulps by Medium-Consistency Ozone Treatment, TAPPI JOURNAL, February 2007

Upgrading OCC and Recycled Liner Pulps by Medium-Consistency Ozone Treatment, TAPPI JOURNAL, February 2007

Journal articles
Magazine articles
Open Access
Rewet in wet pressing of paper, TAPPI JOURNAL September 2018

Rewet in wet pressing of paper, TAPPI JOURNAL September 2018

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.

Journal articles
Magazine articles
Open Access
Citrus-based hydrocolloids: A water retention aid and rheology modifier for paper coatings, TAPPI Journal July 2019

ABSTRACT: The rheological and dewatering behavior of an aqueous pigmented coating system not only affects the machine runnability but also affects the product quality. The current study describes the use of natural hydrocol-loids derived from citrus peel fibers as a rheology modifier in paper coating applications. The results were compared with carboxymethyl cellulose (CMC) in a typical paper coating system. Water retention of the coating formulation was increased by 56% with citrus peel fibers compared to a default coating, and it also was higher than a CMC-containing coating. The Brookfield viscosity of paper coatings was found to increase with citrus peel fibers. Compared to CMC, different citrus peel fibers containing coating recipes were able to achieve similar or higher water retention values, with no change or a slight increase in viscosity. Coatings were applied on linerboard using the Mayer rod-coating method, and all basic properties of paper were measured to assess the impact of citrus peel fiber on the functional value of the coatings. Paper properties were improved with coated paper containing citrus peel fibers, including brightness, porosity, smoothness, surface bonding strength, and ink absorption.

Journal articles
Open Access
Combined effect of fiber fines and dissolved organics on tissue properties, TAPPI JOURNAL April 1988 88APR141

Combined effect of fiber fines and dissolved organics on tissue properties, TAPPI JOURNAL April 1988

Journal articles
Open Access
Measurement of strains in a paper tensile specimen using computer vision and digital image correlation-Part 2: Tensile specimen test, TAPPI JOURNAL April 1988 88APR153

Measurement of strains in a paper tensile specimen using computer vision and digital image correlation-Part 2: Tensile specimen test, TAPPI JOURNAL April 1988

Journal articles
Open Access
Fourth press operation in Japan, TAPPI JOURNAL April 1988 88APR83

Fourth press operation in Japan, TAPPI JOURNAL April 1988

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