Effect of blanket properties on web tension in offset printing

Merja Kariniemi, Markku Parola, Artem Kulachenko, Joonas Sorvari, Leo von Hertzen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

VTT and KCL together with several companies in the printing value chain have studied how to control web tension in different parts of a printing press. Extensive trials on printing presses, at pilot scale and at laboratory scale have yielded data for modeling work. Modeling was carried out with statistical methods and by finite element method (FEM). Results show the extent to which paper and printing blankets affect tension formation in a printing press. The main emphasis of this paper is on the effect different printing blanket types have on web tension. It was found that printing blankets have a clear effect on web tension. The degree of tension change is affected by the type of blanket, nip pressure, distances between the blankets, moisture, paper properties and the combination of blanket types in different printing units. Depending on their feeding properties and their effect on web tension, in general, the blankets can be distinguished as negative, neutral and positive. Also the blanket's effect on web tension is influenced strongly by the type of adjacent blankets. The interactions of fountain solution, ink, nip, blanket and paper had also an effect on the tension formation. The paper experiences a very high rate of strain inside the printing nips, which can affect the paper's response and therefore tension after the nips. Results suggest that tension cannot be solely predicted with the elastic paper properties measured by conventional methods.
Original languageEnglish
Title of host publicationAdvances in Printing and Media Technology. Vol. XXXVII
Subtitle of host publicationProceedings of the 37th International Research Conference of iarigai
PublisherIARIGAI - International Association of Research Organizations for the Printing, Information and Communication Industries
Pages267-276
ISBN (Electronic)978-3-9870704-5-7
ISBN (Print)978-3-9812704-2-6
Publication statusPublished - 2010
MoE publication typeA4 Article in a conference publication
Event37th International Research Conference of iarigai - Montreal, Canada
Duration: 12 Sep 201015 Sep 2010

Conference

Conference37th International Research Conference of iarigai
CountryCanada
CityMontreal
Period12/09/1015/09/10

Fingerprint

Offset printing
Printing
Printing presses
Fountains
Ink
Statistical methods
Moisture
Finite element method
Industry

Keywords

  • offset printing
  • web tension
  • runnability
  • printing blanket
  • paper

Cite this

Kariniemi, M., Parola, M., Kulachenko, A., Sorvari, J., & von Hertzen, L. (2010). Effect of blanket properties on web tension in offset printing. In Advances in Printing and Media Technology. Vol. XXXVII: Proceedings of the 37th International Research Conference of iarigai (pp. 267-276). IARIGAI - International Association of Research Organizations for the Printing, Information and Communication Industries.
Kariniemi, Merja ; Parola, Markku ; Kulachenko, Artem ; Sorvari, Joonas ; von Hertzen, Leo. / Effect of blanket properties on web tension in offset printing. Advances in Printing and Media Technology. Vol. XXXVII: Proceedings of the 37th International Research Conference of iarigai. IARIGAI - International Association of Research Organizations for the Printing, Information and Communication Industries, 2010. pp. 267-276
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title = "Effect of blanket properties on web tension in offset printing",
abstract = "VTT and KCL together with several companies in the printing value chain have studied how to control web tension in different parts of a printing press. Extensive trials on printing presses, at pilot scale and at laboratory scale have yielded data for modeling work. Modeling was carried out with statistical methods and by finite element method (FEM). Results show the extent to which paper and printing blankets affect tension formation in a printing press. The main emphasis of this paper is on the effect different printing blanket types have on web tension. It was found that printing blankets have a clear effect on web tension. The degree of tension change is affected by the type of blanket, nip pressure, distances between the blankets, moisture, paper properties and the combination of blanket types in different printing units. Depending on their feeding properties and their effect on web tension, in general, the blankets can be distinguished as negative, neutral and positive. Also the blanket's effect on web tension is influenced strongly by the type of adjacent blankets. The interactions of fountain solution, ink, nip, blanket and paper had also an effect on the tension formation. The paper experiences a very high rate of strain inside the printing nips, which can affect the paper's response and therefore tension after the nips. Results suggest that tension cannot be solely predicted with the elastic paper properties measured by conventional methods.",
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Kariniemi, M, Parola, M, Kulachenko, A, Sorvari, J & von Hertzen, L 2010, Effect of blanket properties on web tension in offset printing. in Advances in Printing and Media Technology. Vol. XXXVII: Proceedings of the 37th International Research Conference of iarigai. IARIGAI - International Association of Research Organizations for the Printing, Information and Communication Industries, pp. 267-276, 37th International Research Conference of iarigai, Montreal, Canada, 12/09/10.

Effect of blanket properties on web tension in offset printing. / Kariniemi, Merja; Parola, Markku; Kulachenko, Artem; Sorvari, Joonas; von Hertzen, Leo.

Advances in Printing and Media Technology. Vol. XXXVII: Proceedings of the 37th International Research Conference of iarigai. IARIGAI - International Association of Research Organizations for the Printing, Information and Communication Industries, 2010. p. 267-276.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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AU - Sorvari, Joonas

AU - von Hertzen, Leo

PY - 2010

Y1 - 2010

N2 - VTT and KCL together with several companies in the printing value chain have studied how to control web tension in different parts of a printing press. Extensive trials on printing presses, at pilot scale and at laboratory scale have yielded data for modeling work. Modeling was carried out with statistical methods and by finite element method (FEM). Results show the extent to which paper and printing blankets affect tension formation in a printing press. The main emphasis of this paper is on the effect different printing blanket types have on web tension. It was found that printing blankets have a clear effect on web tension. The degree of tension change is affected by the type of blanket, nip pressure, distances between the blankets, moisture, paper properties and the combination of blanket types in different printing units. Depending on their feeding properties and their effect on web tension, in general, the blankets can be distinguished as negative, neutral and positive. Also the blanket's effect on web tension is influenced strongly by the type of adjacent blankets. The interactions of fountain solution, ink, nip, blanket and paper had also an effect on the tension formation. The paper experiences a very high rate of strain inside the printing nips, which can affect the paper's response and therefore tension after the nips. Results suggest that tension cannot be solely predicted with the elastic paper properties measured by conventional methods.

AB - VTT and KCL together with several companies in the printing value chain have studied how to control web tension in different parts of a printing press. Extensive trials on printing presses, at pilot scale and at laboratory scale have yielded data for modeling work. Modeling was carried out with statistical methods and by finite element method (FEM). Results show the extent to which paper and printing blankets affect tension formation in a printing press. The main emphasis of this paper is on the effect different printing blanket types have on web tension. It was found that printing blankets have a clear effect on web tension. The degree of tension change is affected by the type of blanket, nip pressure, distances between the blankets, moisture, paper properties and the combination of blanket types in different printing units. Depending on their feeding properties and their effect on web tension, in general, the blankets can be distinguished as negative, neutral and positive. Also the blanket's effect on web tension is influenced strongly by the type of adjacent blankets. The interactions of fountain solution, ink, nip, blanket and paper had also an effect on the tension formation. The paper experiences a very high rate of strain inside the printing nips, which can affect the paper's response and therefore tension after the nips. Results suggest that tension cannot be solely predicted with the elastic paper properties measured by conventional methods.

KW - offset printing

KW - web tension

KW - runnability

KW - printing blanket

KW - paper

M3 - Conference article in proceedings

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SP - 267

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BT - Advances in Printing and Media Technology. Vol. XXXVII

PB - IARIGAI - International Association of Research Organizations for the Printing, Information and Communication Industries

ER -

Kariniemi M, Parola M, Kulachenko A, Sorvari J, von Hertzen L. Effect of blanket properties on web tension in offset printing. In Advances in Printing and Media Technology. Vol. XXXVII: Proceedings of the 37th International Research Conference of iarigai. IARIGAI - International Association of Research Organizations for the Printing, Information and Communication Industries. 2010. p. 267-276