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Journal articles
Magazine articles
Open Access
Surface energy considerations for offset printing of coated paper and paperboard, TAPPI Journal November 2023

ABSTRACT: Offset printing of coated paper involves the complex interactions of ink with a surface that is characterized by three major properties: roughness, porosity, and related pore network structure and surface chemistry (related to surface free energy [SFE]). The effects of porosity and roughness are relatively well understood and are documented in the literature, whereas the influence of surface chemistry is much less studied and therefore the focus of this paper. The key results shown include: i) Coating porosity has a negligible effect on SFE determination by contact angle using two fluids. ii) The chemistry of the latex polymer in the coating formulation dominates the influence on SFE compared to pigment, with any surface energy differences present in the pigment being almost completely masked by latex. iii) Wetting agent and corona treatment can impact water absorption rate and surface spreading of water, resulting in small differences in printability. Increasing the concentration of the surfactant on a coated surface indicates switching orientation of the surfactant molecules, giving a “step wise” printing result. When looking to improve offset printability by selection of different pigments, the variation in SFE is less important than variation in either surface roughness or porosity.

Magazine articles
Open Access
What does it take to get my paper published?, TAPPI JOURNAL,

What does it take to get my paper published?, TAPPI JOURNAL, March 2002, Vol. 1(1) (62KB)

Magazine articles
Open Access
Corrosion in lower furnace of kraft recovery boilersâ??in-situ characterization of corrosive environments, Solutions! & TAPPI JOURNAL, February 2004, Vol. 3(2) (179KB)

Corrosion in lower furnace of kraft recovery boilers–in-situ characterization of corrosive environments, Solutions! & TAPPI JOURNAL, February 2004, Vol. 3(2) (179KB)

Magazine articles
Open Access
Editor's Note: Bright future for coating at ACFS, TAPPI JOUR

Editor's Note: Bright future for coating at ACFS, TAPPI JOURNAL November 2010

Magazine articles
Open Access
Global multi-pigment savvy from imerys, TAPPI JOURNAL, June 2000, Vol. 83(6)

Global multi-pigment savvy from imerys, TAPPI JOURNAL, June 2000, Vol. 83(6)

Magazine articles
Open Access
Vendor, supplier, or partner, TAPPI JOURNAL, June 2000, Vol. 83(6)

Vendor, supplier, or partner, TAPPI JOURNAL, June 2000, Vol. 83(6)

Magazine articles
Open Access
Managing technology - a critical contribution to competitiveness, TAPPI JOURNAL, June 2000, Vol. 83(6)

Managing technology - a critical contribution to competitiveness, TAPPI JOURNAL, June 2000, Vol. 83(6)

Magazine articles
Open Access
Bay state paper company: a mill that reinvented itself, TAPPI JOURNAL, March 2000, Vol. 83(3)

Bay state paper company: a mill that reinvented itself, TAPPI JOURNAL, March 2000, Vol. 83(3)

Magazine articles
Open Access
Technology utilization in mills, TAPPI JOURNAL, March 2000, Vol. 83(3)

Technology utilization in mills, TAPPI JOURNAL, March 2000, Vol. 83(3)

Magazine articles
Open Access
Mount st. helens - 20 years of recovery, TAPPI JOURNAL, May 2000, Vol. 83(5)

Mount st. helens - 20 years of recovery, TAPPI JOURNAL, May 2000, Vol. 83(5)

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