Dynamic ink oil absorption in a pigmented porous coating medium studied by near-infrared diffuse reflectance spectroscopy

Carl-Mikael Tåg (Corresponding Author), Maunu Toiviainen, Cathy Ridgway, Mikko Juuti, Patrick A.C. Gane

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

The rate of absorption (both long and short timescale) of typical heatset offset printing ink oils, namely mineral and linseed oil, has been studied on model ground calcium carbonate coating pigment tablets containing various amounts of either styrene–acrylic or styrene–butadiene binder. The pore structure characteristics of the tablets were determined using mercury intrusion porosimetry. The movement of the oils both on the surface of and within the porous structure of the pigment/binder tablets was studied under the influence of pressure-less capillary flow with subsequent diffusion through the connected void volume of the tablet. The wetting was analyzed by near-infrared (NIR) diffuse reflectance spectroscopy both as a single probe measurement and by hyperspectral imaging. The results showed that the rate of oil filling the structure was strongly dependent on the binder amount in the structure as well as the binder chemistry (oil- or non-absorbing binder), which supports previous findings. The liquid properties, and especially the viscosity of the liquid (oil), influenced the absorption rate. The gradients in absorbance indicated the presence of latex blocking access to some pores and reducing connectivity.
Original languageEnglish
Pages (from-to)145-160
JournalTransport in Porous Media
Volume99
Issue number1
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

Fingerprint

Ink
Binders
Oils
Tablets
Spectroscopy
Infrared radiation
Coatings
Pigments
Linseed Oil
Offset printing
Capillary flow
Mineral Oil
Calcium Carbonate
Mineral oils
Latex
Liquids
Calcium carbonate
Pore structure
Latexes
Mercury

Keywords

  • linseed oil
  • mineral oil
  • offset printing
  • porous media
  • wetting

Cite this

Tåg, Carl-Mikael ; Toiviainen, Maunu ; Ridgway, Cathy ; Juuti, Mikko ; Gane, Patrick A.C. / Dynamic ink oil absorption in a pigmented porous coating medium studied by near-infrared diffuse reflectance spectroscopy. In: Transport in Porous Media. 2013 ; Vol. 99, No. 1. pp. 145-160.
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title = "Dynamic ink oil absorption in a pigmented porous coating medium studied by near-infrared diffuse reflectance spectroscopy",
abstract = "The rate of absorption (both long and short timescale) of typical heatset offset printing ink oils, namely mineral and linseed oil, has been studied on model ground calcium carbonate coating pigment tablets containing various amounts of either styrene–acrylic or styrene–butadiene binder. The pore structure characteristics of the tablets were determined using mercury intrusion porosimetry. The movement of the oils both on the surface of and within the porous structure of the pigment/binder tablets was studied under the influence of pressure-less capillary flow with subsequent diffusion through the connected void volume of the tablet. The wetting was analyzed by near-infrared (NIR) diffuse reflectance spectroscopy both as a single probe measurement and by hyperspectral imaging. The results showed that the rate of oil filling the structure was strongly dependent on the binder amount in the structure as well as the binder chemistry (oil- or non-absorbing binder), which supports previous findings. The liquid properties, and especially the viscosity of the liquid (oil), influenced the absorption rate. The gradients in absorbance indicated the presence of latex blocking access to some pores and reducing connectivity.",
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Dynamic ink oil absorption in a pigmented porous coating medium studied by near-infrared diffuse reflectance spectroscopy. / Tåg, Carl-Mikael (Corresponding Author); Toiviainen, Maunu; Ridgway, Cathy; Juuti, Mikko; Gane, Patrick A.C.

In: Transport in Porous Media, Vol. 99, No. 1, 2013, p. 145-160.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Dynamic ink oil absorption in a pigmented porous coating medium studied by near-infrared diffuse reflectance spectroscopy

AU - Tåg, Carl-Mikael

AU - Toiviainen, Maunu

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AU - Juuti, Mikko

AU - Gane, Patrick A.C.

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N2 - The rate of absorption (both long and short timescale) of typical heatset offset printing ink oils, namely mineral and linseed oil, has been studied on model ground calcium carbonate coating pigment tablets containing various amounts of either styrene–acrylic or styrene–butadiene binder. The pore structure characteristics of the tablets were determined using mercury intrusion porosimetry. The movement of the oils both on the surface of and within the porous structure of the pigment/binder tablets was studied under the influence of pressure-less capillary flow with subsequent diffusion through the connected void volume of the tablet. The wetting was analyzed by near-infrared (NIR) diffuse reflectance spectroscopy both as a single probe measurement and by hyperspectral imaging. The results showed that the rate of oil filling the structure was strongly dependent on the binder amount in the structure as well as the binder chemistry (oil- or non-absorbing binder), which supports previous findings. The liquid properties, and especially the viscosity of the liquid (oil), influenced the absorption rate. The gradients in absorbance indicated the presence of latex blocking access to some pores and reducing connectivity.

AB - The rate of absorption (both long and short timescale) of typical heatset offset printing ink oils, namely mineral and linseed oil, has been studied on model ground calcium carbonate coating pigment tablets containing various amounts of either styrene–acrylic or styrene–butadiene binder. The pore structure characteristics of the tablets were determined using mercury intrusion porosimetry. The movement of the oils both on the surface of and within the porous structure of the pigment/binder tablets was studied under the influence of pressure-less capillary flow with subsequent diffusion through the connected void volume of the tablet. The wetting was analyzed by near-infrared (NIR) diffuse reflectance spectroscopy both as a single probe measurement and by hyperspectral imaging. The results showed that the rate of oil filling the structure was strongly dependent on the binder amount in the structure as well as the binder chemistry (oil- or non-absorbing binder), which supports previous findings. The liquid properties, and especially the viscosity of the liquid (oil), influenced the absorption rate. The gradients in absorbance indicated the presence of latex blocking access to some pores and reducing connectivity.

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KW - porous media

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