New silica coating pigment for inkjet papers from mining industry sidestreams

Taina Lamminmäki, Eija Kenttä, Hille Rautkoski, John Bacher, Sebastian Teir, John Kettle, Juha Sarlin

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Silica is commonly used as an ingredient in the coatings of inkjet papers because of its capability to provide a coating layer structure combining a high pore volume, into which all the applied inkjet ink can transfer, and a suitable pore size distribution for very quick ink absorption. Nowadays, the production of silica pigment is quite expensive, and therefore, it would be advantageous to find a cheaper raw material source. In this study, the raw material was Greek olivine from magnesite mine sidestreams. The silica pigment was produced at laboratory scale by using nitric acid as a solvent. The target of this work was to clarify how this produced silica pigment is suited for inkjet coating pigments. The coating colors were applied by a laboratory rod coater on fine base paper and white-top kraftliner, and the coated surfaces were printed with a home and office area inkjet printer. The results showed that the produced olivine-based silica pigment has a potential in matt inkjet coatings. The coating of the produced silica pigment increased the print density, decreased the print-through, and diminished the bleeding of fine paper and white-top kraftliner board. However, further development work is needed to improve the pigment brightness to a more acceptable level, and to control the particle size at the nitric acid dissolution.
Original languageEnglish
Pages (from-to)224-234
Number of pages11
JournalJournal of Surface Engineered Materials and Advanced Technology
Volume3
Issue number3
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

Fingerprint

mining industry
pigment
coating
silica
nitric acid
olivine
magnesite
dissolution
particle size

Keywords

  • silica
  • coating pigment
  • inkjet printing
  • print quality
  • ink penetration
  • ionic charge
  • dye transfer process

Cite this

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title = "New silica coating pigment for inkjet papers from mining industry sidestreams",
abstract = "Silica is commonly used as an ingredient in the coatings of inkjet papers because of its capability to provide a coating layer structure combining a high pore volume, into which all the applied inkjet ink can transfer, and a suitable pore size distribution for very quick ink absorption. Nowadays, the production of silica pigment is quite expensive, and therefore, it would be advantageous to find a cheaper raw material source. In this study, the raw material was Greek olivine from magnesite mine sidestreams. The silica pigment was produced at laboratory scale by using nitric acid as a solvent. The target of this work was to clarify how this produced silica pigment is suited for inkjet coating pigments. The coating colors were applied by a laboratory rod coater on fine base paper and white-top kraftliner, and the coated surfaces were printed with a home and office area inkjet printer. The results showed that the produced olivine-based silica pigment has a potential in matt inkjet coatings. The coating of the produced silica pigment increased the print density, decreased the print-through, and diminished the bleeding of fine paper and white-top kraftliner board. However, further development work is needed to improve the pigment brightness to a more acceptable level, and to control the particle size at the nitric acid dissolution.",
keywords = "silica, coating pigment, inkjet printing, print quality, ink penetration, ionic charge, dye transfer process",
author = "Taina Lamminm{\"a}ki and Eija Kentt{\"a} and Hille Rautkoski and John Bacher and Sebastian Teir and John Kettle and Juha Sarlin",
note = "Project code: 32693 Promine",
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New silica coating pigment for inkjet papers from mining industry sidestreams. / Lamminmäki, Taina; Kenttä, Eija; Rautkoski, Hille; Bacher, John; Teir, Sebastian; Kettle, John; Sarlin, Juha.

In: Journal of Surface Engineered Materials and Advanced Technology, Vol. 3, No. 3, 2013, p. 224-234.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Lamminmäki, Taina

AU - Kenttä, Eija

AU - Rautkoski, Hille

AU - Bacher, John

AU - Teir, Sebastian

AU - Kettle, John

AU - Sarlin, Juha

N1 - Project code: 32693 Promine

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N2 - Silica is commonly used as an ingredient in the coatings of inkjet papers because of its capability to provide a coating layer structure combining a high pore volume, into which all the applied inkjet ink can transfer, and a suitable pore size distribution for very quick ink absorption. Nowadays, the production of silica pigment is quite expensive, and therefore, it would be advantageous to find a cheaper raw material source. In this study, the raw material was Greek olivine from magnesite mine sidestreams. The silica pigment was produced at laboratory scale by using nitric acid as a solvent. The target of this work was to clarify how this produced silica pigment is suited for inkjet coating pigments. The coating colors were applied by a laboratory rod coater on fine base paper and white-top kraftliner, and the coated surfaces were printed with a home and office area inkjet printer. The results showed that the produced olivine-based silica pigment has a potential in matt inkjet coatings. The coating of the produced silica pigment increased the print density, decreased the print-through, and diminished the bleeding of fine paper and white-top kraftliner board. However, further development work is needed to improve the pigment brightness to a more acceptable level, and to control the particle size at the nitric acid dissolution.

AB - Silica is commonly used as an ingredient in the coatings of inkjet papers because of its capability to provide a coating layer structure combining a high pore volume, into which all the applied inkjet ink can transfer, and a suitable pore size distribution for very quick ink absorption. Nowadays, the production of silica pigment is quite expensive, and therefore, it would be advantageous to find a cheaper raw material source. In this study, the raw material was Greek olivine from magnesite mine sidestreams. The silica pigment was produced at laboratory scale by using nitric acid as a solvent. The target of this work was to clarify how this produced silica pigment is suited for inkjet coating pigments. The coating colors were applied by a laboratory rod coater on fine base paper and white-top kraftliner, and the coated surfaces were printed with a home and office area inkjet printer. The results showed that the produced olivine-based silica pigment has a potential in matt inkjet coatings. The coating of the produced silica pigment increased the print density, decreased the print-through, and diminished the bleeding of fine paper and white-top kraftliner board. However, further development work is needed to improve the pigment brightness to a more acceptable level, and to control the particle size at the nitric acid dissolution.

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KW - print quality

KW - ink penetration

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KW - dye transfer process

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