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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.

Conference papers
Regulatory and Sustainability Initiatives Lead to Improved Polyaminopolyamide-epichlorohydrin (PAE) Wet Strength Resins and Paper Products, 18PaperCon

Regulatory and Sustainability Initiatives Lead to Improved Polyaminopolyamide-epichlorohydrin (PAE) Wet Strength Resins and Paper Products, 18PaperCon

Conference papers
Enzymatic Treatment of Recycled Pulp for Improved Inter-Fiber Bonding and Pulp Drainage, 18PaperCon

Enzymatic Treatment of Recycled Pulp for Improved Inter-Fiber Bonding and Pulp Drainage, 18PaperCon

Conference papers
Evaluating the Contrast of Planar Periodic Patterns on Paper, 18PaperCon

Evaluating the Contrast of Planar Periodic Patterns on Paper, 18PaperCon

Conference papers
Fuzzy Control On A Fluff Pulp Machine To Reduce Consistency and Moisture Variability, 18PaperCon

Fuzzy Control On A Fluff Pulp Machine To Reduce Consistency and Moisture Variability, 18PaperCon

Conference papers
Monitoring Cross-Thickness Distributions of Fines and CMF by Dyeing and Optical Measurement, 18PaperCon

Monitoring Cross-Thickness Distributions of Fines and CMF by Dyeing and Optical Measurement, 18PaperCon

Journal articles
Magazine articles
Preventive Maintenance Cards, Anyone?, Paper360º March/April 2020

Preventive Maintenance Cards, Anyone?, Paper360º March/April 2020

Journal articles
Magazine articles
Open Access
The use of hollow sphere pigments as strength additives in paper and paperboard coatings—Part 2: Optimization in paperboard formulations for opacity and strength, TAPPI Journal November 2020

ABSTRACT: This report aims to summarize the efforts in testing the properties of coatings for paperboard utilizing hollow sphere pigments (HSPs). HSPs are known to effectively scatter light and replace titanium dioxide (TiO2) in architectural coating formulations. The effect of the particle size and void fraction was evaluated, along with many coating parameters, including level of addition, binder chemistry, and blends of two HSPs. The small HSPs that have optimized voids for scattering light showed equivalent strength to the TiO2-containing control. The strength data was surprising, particularly the improvement in strength for coatings containing large particle size HSPs. Because of this increase in strength, four parts of binder could be removed, which allowed for higher brightness while not compromising other properties, including hot melt glueability. These trends held true using different binder chemistries (styrene acrylic, vinyl acrylic, and styrene butadiene). Upon refining the formulations further, blends of two HSPs showed further benefit.

Conference papers
Effect of Fiber Structure on Edge-Wicking in a Highly Sized Paper, 19PaperCon

Effect of Fiber Structure on Edge-Wicking in a Highly Sized Paper, 19PaperCon

Conference papers
Electroactive Papers, Films, Filaments, Aerogels, and Hydrogels to Realize the Future of Bio-based Electronics, 19PaperCon

Electroactive Papers, Films, Filaments, Aerogels, and Hydrogels to Realize the Future of Bio-based Electronics, 19PaperCon