Causes of Missing Dots in Rotogravure Printing

  • This work has shown that the number of local defects (craters) beyond certain limit values correlates very well with the number of missing dots, and therefore the surface topography of the paper has definitely the greatest impact on printability in rotogravure. The deepenings have an average depth of 2-5 μm and diameters between 50-250 μm. When ESA is used bigger craters as regards depth and diameter are necessary to cause missing dots. However, not all missing dots can be explained and described by means of surface topography. Non-topographic factors, such as electric properties of papers (especially when using the ESA), fibre and filler distribution, ink absorbency or microscopic compressibility can also have an influence on printability as regards missing dots. Paper independent factors (e.g. printing ink or printing machine) may also have a certain influence on missing dots.

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Metadaten
Author:Emanuele Martorana, Frank W. a Campo, Heinz Ziegler, Hans-Helmut Jühe
URN:urn:nbn:de:bvb:m347-opus-153
Document Type:Conference Proceeding
Language:English
Date of Publication (online):2021/11/16
Year of first Publication:2006
Publishing Institution:Hochschule für angewandte Wissenschaften München
Creating Corporation:Hochschule für Angewandte Wissenschaften München
Contributing Corporation:15. Internationales Münchner Papier-Symposium
Release Date:2021/11/16
GND Keyword:DrucktechnikGND; PapierGND
Page Number:17
Note:
Deutsche Ausgabe unter dem Titel: Ursachen von Missing Dots im Tiefdruck
Departments and Institutes:Fakultäten der Hochschule München / FK 05 Fakultät für Technische Systeme, Prozesse und Kommunikation
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 60 Technik
Illustrations:grafische Darstellung/en
Licence (German):Keine CC-Lizenz, es gilt der Veröffentlichungsvertrag und das Deutsche Urheberrecht
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