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Ink-lift-off during offset printing: A novel mechanism behind ink-paper coating adhesion failure
RISE, Innventia.
RISE, Innventia.
OMYA Development AG, Switzerland.
OMYA Development AG, Switzerland; Aalto University, Finland.
2015 (English)In: Journal of Adhesion Science and Technology, ISSN 0169-4243, E-ISSN 1568-5616, Vol. 29, no 5, p. 370-391Article in journal (Refereed) Published
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Abstract [en]

This paper reports on a special pilot coating and industrial printing trial designed to gain fundamental knowledge on ink adhesion failure on coated papers. We found that ink adhesion failure resulted in white spots without ink on the paper, referred to as uncovered areas and these spots gave print mottle problems. The white spots were due to two fundamentally different types of ink adhesion failure. One is the well-known ink rejection, which simply means that ink is not transferred to the surface. The other is a new type of ink adhesion failure, confirming a previous hypothesis suggested from laboratory observations. We refer to this as ink-lift-off adhesion failure, meaning that ink initially deposited on the paper surface becomes lifted off from the surface in a subsequent print unit. Adhesion failure by this mechanism was seen to occur more frequently than failure due to the well-known ink rejection.

Place, publisher, year, edition, pages
2015. Vol. 29, no 5, p. 370-391
Keywords [en]
adhesion failure, GCC-based coating, ink adhesion, offset, print mottle, uncovered area
National Category
Media Engineering
Identifiers
URN: urn:nbn:se:ri:diva-781DOI: 10.1080/01694243.2014.989650Scopus ID: 2-s2.0-84920177011OAI: oai:DiVA.org:ri-781DiVA, id: diva2:970756
Available from: 2016-09-14 Created: 2016-08-03 Last updated: 2019-07-05Bibliographically approved

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