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Improving Paper Wet-strength by Means Hot-Pressing and Increased Lignin Content in Pulp Fibers, 19PaperCon

Improving Paper Wet-strength by Means Hot-Pressing and Increased Lignin Content in Pulp Fibers, 19PaperCon

Textile-Like Materials with Foam Forming on a Paper Machine, 19PaperCon

Textile-Like Materials with Foam Forming on a Paper Machine, 19PaperCon

Pilot Scale Production of Interactive Zinc Oxide Paper and its Multiple Applicability, 19PaperCon

Pilot Scale Production of Interactive Zinc Oxide Paper and its Multiple Applicability, 19PaperCon

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

Mechanical Properties of Free Standing Pigmented Coating Lay

Mechanical Properties of Free Standing Pigmented Coating Layers With Latex and Starch as binder: Bending ,Tensile and Picking Properties, PaperCon 2017

Surface application of cellulose nanofibrils to fine paper u

Surface application of cellulose nanofibrils to fine paper using different base sheet freeness levels, PaperCon 2017

Labeled Cellulose for EHS Studies, TAPPICon25

Measurement and control of extensional viscosity in barrier coating dispersions, TAPPI Journal November 2023

ABSTRACT: This study aimed to understand the effect of various rheological additives on the extensional viscosity of barrier coating dispersions, as well as to understand the role extensional viscosity plays in stabilizing a liquid curtain. The apparent extensional viscosity was measured using two devices that create accelerating flows: a capillary viscometer and an orifice rheometer. Additives tested include several polyvinyl alcohols, a high molecular weight polyethylene oxide, and carboxymethylcellulose. Extensional viscosity plays a significant role in stabilizing a liquid curtain, as it slows down hole expansion and prevents impurities and disturbances from causing holes in the first place. Some of the additives could substantially increase the extensional viscosity of the dispersions without increasing the shear viscosity outside the typical range of processability for a curtain coater. Some of the additives exhibited coil-stretch transition, meaning they start increasing extensional viscosity above a certain extension rate. Polymers with low chain lengths exhibited finite extensibility, which indicates the polymer chain has fully extended and cannot provide further extensional viscosity, even though the extending force is increased. Polymeric additives with stiff or branched chains significantly raised shear viscosity without increasing extensional viscosity. Both methods could reliably measure extensional viscosity in curtain coating barrier dispersions.

Mechanistic Aspects of Nanocellulose•Cationic Starch•Colloidal Silica Systems for Papermaking, TAPPICon 2023

The Use of Minerals in Fibre Based Packaging & Pulp Moulding, TAPPICon 2023