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.
Author: | Emanuele Martorana, Frank W. a Campo, Heinz Ziegler, Hans-Helmut Jühe |
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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 |