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Open Access
Guest Editorial: Coating research addresses new product demands in response to global pandemic, TAPPI Journal November 2020

ABSTRACT: For all of us, the year 2020 has been one of significant challenge. Our communities, companies, institutions, organizations, and families have had to make many tough decisions and change our way of life as a result of the global pandemic.

Journal articles
Magazine articles
Open Access
Pigmented aqueous barrier coatings, TAPPI Journal November 2020

ABSTRACT: The desire for more sustainable packaging has led to the development of new packaging materials that are fiber based. Aqueous coatings are a pathway to improve the recyclability of these materials. Pigments used in these coatings can improve the performance of the coating and reduce cost while further improving the recyclability. Mineral pigments are also considered to be compost neutral. In this paper, we provide the reader a better fundamental understanding of the mechanisms by which pigments work in barrier coatings. A pigment’s mineralogy and physical characteristics are important to how it will perform, and there have been recent pigment developments that improve coating performance. This paper shows that some pigments are better than others in particular barrier applications. Also, pigmented base or pre-coats can be used to prepare the surface for more highly functional coatings that go on top, improving the barrier function of packaging material and reducing overall cost. Finally, the converting operation is of major importance in driving formulation choices for barrier applications.

Journal articles
Magazine articles
Open Access
On the nominal transverse shear strai to characterize the severity of creasing, TAPPI JOURNAL April 2018

On the nominal transverse shear strai to characterize the severity of creasing, TAPPI JOURNAL April 2018

Journal articles
Magazine articles
Open Access
Ultrastructural Behavior of Cell Wall Polysaxxharides, TAPPI Journal April 2022

ABSTRACT: Considerable information on the ultrastructural organization of the plant cell wall and the supermolecular arragement of the cell wall components, in particular of cellulose, has been obtained with the electron microscope.

Journal articles
Magazine articles
Open Access
The chemistry of aluminu salts in papermaking, TAPPI Journal April 2022

ABSTRACT: Alum and related aluminum salts are used exxtensively in a variety of papermaking operations. The versatility of these aluminum additives stems from the ability of the various aluinum species to adsorb and interact with the other materials in the papermaking system.

Journal articles
Magazine articles
Open Access
Furnishing autohydrolyzed poplar weakly alkaline P-RC APMP to make lightweight coated base paper, TAPPI Journal February 2022

ABSTRACT: This work investigated the effects of autohydrolysis pretreatment severity on poplar (Populus tomentosa Carr.) woodchips used to make a type of high-yield pulp (HYP) known as preconditioning followed by refiner chemical treatment, alkaline peroxide mechanical pulp (P-RC APMP). It also investigated the ratios for partially replacing sodium hydroxide (NaOH) with magnesium oxide (MgO) in the high-consistency (HC) retention stage of the P-RC APMP process on the obtained HYP’s properties. The results show that the pretreatment severity of autohydrolysis at combined hydrolysis factor (CHF) = 10.77 and the 50 wt% ratio for partially substituting NaOH with MgO were the optimum conditions for making light-weight coated (LWC) base paper. Compared to the conventional P-RC APMP, the optimized P-RC APMP had similar bulk and higher tensile, burst, and tear indices, as well as opacity, but a slightly lower ISO brightness. When the optimized P-RC APMP and commercial softwood bleached sulfate pulp (SBKP) were blended to make LWC base paper, the most favorable pulp furnish was comprised of 50% optimized P-RC APMP and 50% commercial SBKP. The obtained LWC base paper handsheet had better bulk, and its other properties could also meet the require-ments of LWC base paper.

Magazine articles
Open Access
Adding value: industry trend reflects shift in customer/supplier relationships, TAPPI JOURNAL, May 1998, Vol. 81(5)

Adding value: industry trend reflects shift in customer/supplier relationships, TAPPI JOURNAL, May 1998, Vol. 81(5)

Magazine articles
Open Access
Contributing causes and risk reduction of crevice corrosion, TAPPI JOURNAL, November 1998, Vol. 81(11)

Contributing causes and risk reduction of crevice corrosion, TAPPI JOURNAL, November 1998, Vol. 81(11)

Magazine articles
Open Access
English as a first and second language - part 6: avoiding grammar traps, TAPPI JOURNAL, September 1998, Vol. 81(9)

English as a first and second language - part 6: avoiding grammar traps, TAPPI JOURNAL, September 1998, Vol. 81(9)

Magazine articles
Open Access
Technology spotlight: the paper machine of tomorrow - maintenance and engineering, TAPPI JOURNAL, September 1998, Vol. 81(9)

Technology spotlight: the paper machine of tomorrow - maintenance and engineering, TAPPI JOURNAL, September 1998, Vol. 81(9)

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