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Journal articles
Open Access
Valves: corrosion and maintenance, TAPPI JOURNAL, August 1993, Vol. 76(8)

Valves: corrosion and maintenance, TAPPI JOURNAL, August 1993, Vol. 76(8)

Journal articles
Open Access
Size reversion in alkaline papermaking, TAPPI JOURNAL, August 1993, Vol. 76(8)

Size reversion in alkaline papermaking, TAPPI JOURNAL, August 1993, Vol. 76(8)

Journal articles
Open Access
Xylanase treatment for the bleaching of softwood kraft pulps: the effect of chlorine dioxide substitution, TAPPI JOURNAL, August 1993, Vol. 76(8)

Xylanase treatment for the bleaching of softwood kraft pulps: the effect of chlorine dioxide substitution, TAPPI JOURNAL, August 1993, Vol. 76(8)

Journal articles
Open Access
Drying and recycling of primary sludge at champion international, TAPPI JOURNAL, August 1993, Vol. 76(8)

Drying and recycling of primary sludge at champion international, TAPPI JOURNAL, August 1993, Vol. 76(8)

Journal articles
Open Access
Pigmenting and soft calendering of printing papers, TAPPI JOURNAL, December 1993, Vol. 76(12)

Pigmenting and soft calendering of printing papers, TAPPI JOURNAL, December 1993, Vol. 76(12)

Journal articles
Open Access
Polyelectrolyte interactions with papermaking fibers: the mechanism of surface-charge decay, TAPPI JOURNAL, December 1993, Vol. 76(12)

Polyelectrolyte interactions with papermaking fibers: the mechanism of surface-charge decay, TAPPI JOURNAL, December 1993, Vol. 76(12)

Journal articles
Open Access
ISO 9000 requirements for pulp and paper testing equipment maintenance, TAPPI JOURNAL, February 1993, Vol. 76(2)

ISO 9000 requirements for pulp and paper testing equipment maintenance, TAPPI JOURNAL, February 1993, Vol. 76(2)

Journal articles
Open Access
Use of uv-visible diffuse reflectance spectroscopy for chromophore research on wood fibers: a review, TAPPI JOURNAL, February 1993, Vol. 76(2)

Use of uv-visible diffuse reflectance spectroscopy for chromophore research on wood fibers: a review, TAPPI JOURNAL, February 1993, Vol. 76(2)

Journal articles
Open Access
Persulfates as repulping reagents for neutral/alkaline wet-strength broke, TAPPI JOURNAL, February 1993, Vol. 76(2)

Persulfates as repulping reagents for neutral/alkaline wet-strength broke, TAPPI JOURNAL, February 1993, Vol. 76(2)

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.

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