The Impact of Top Dot Shapes of the Printing Plate on Dot Formation in Flexography

The top dot shape is an important element of plate dot geometry which has a significant effect on dot formation on the prints. There are several key parameters that can affect individual dot deformation: nip engagement, line ruling and dot geometry. The main question is how these parameters affect d...

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Main Authors: Dean Valdec, Petar Miljković, Darijo Čerepinko
Format: Article
Language:English
Published: Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek 2018-01-01
Series:Tehnički Vjesnik
Subjects:
Online Access:https://hrcak.srce.hr/file/293221
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author Dean Valdec
Petar Miljković
Darijo Čerepinko
author_facet Dean Valdec
Petar Miljković
Darijo Čerepinko
author_sort Dean Valdec
collection DOAJ
description The top dot shape is an important element of plate dot geometry which has a significant effect on dot formation on the prints. There are several key parameters that can affect individual dot deformation: nip engagement, line ruling and dot geometry. The main question is how these parameters affect dot deformation. This paper researches the issues regarding print quality in highlights, especially dot formation on print at lighter and higher pressure which leads to inconsistency in the printing process like loss of highlight detail and unpredictable dot gain. The purpose of this research is to improve the understanding of the effect of nip engagement on dot deformation and to determine how top dot shapes affect dot formation. A test image was printed with cyan UV ink on aluminium foil on the pre-printed opaque white ink with plates of different types of top dot shapes, round and flat. The images were taken from the prints and analysed by using ImageJ software. All the important parameters of dot formation including uniformity of density, dot sharpness and dot roundness were evaluated. The results highlight the importance of the top dot shape in plate dot geometry which has a significant effect on print dot formation.
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spelling doaj.art-d429e6e74c914ade8f5ddbf2eb1721bd2024-04-15T14:44:39ZengFaculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in OsijekTehnički Vjesnik1330-36511848-63392018-01-0125259660210.17559/TV-20161003121341The Impact of Top Dot Shapes of the Printing Plate on Dot Formation in FlexographyDean Valdec0Petar Miljković1Darijo Čerepinko2University North, Trg dr. Žarka Dolinara 1, 48000 Koprivnica, CroatiaUniversity North, Trg dr. Žarka Dolinara 1, 48000 Koprivnica, CroatiaUniversity North, Trg dr. Žarka Dolinara 1, 48000 Koprivnica, CroatiaThe top dot shape is an important element of plate dot geometry which has a significant effect on dot formation on the prints. There are several key parameters that can affect individual dot deformation: nip engagement, line ruling and dot geometry. The main question is how these parameters affect dot deformation. This paper researches the issues regarding print quality in highlights, especially dot formation on print at lighter and higher pressure which leads to inconsistency in the printing process like loss of highlight detail and unpredictable dot gain. The purpose of this research is to improve the understanding of the effect of nip engagement on dot deformation and to determine how top dot shapes affect dot formation. A test image was printed with cyan UV ink on aluminium foil on the pre-printed opaque white ink with plates of different types of top dot shapes, round and flat. The images were taken from the prints and analysed by using ImageJ software. All the important parameters of dot formation including uniformity of density, dot sharpness and dot roundness were evaluated. The results highlight the importance of the top dot shape in plate dot geometry which has a significant effect on print dot formation.https://hrcak.srce.hr/file/293221dot formationflexographyprint qualitytop dots shape
spellingShingle Dean Valdec
Petar Miljković
Darijo Čerepinko
The Impact of Top Dot Shapes of the Printing Plate on Dot Formation in Flexography
Tehnički Vjesnik
dot formation
flexography
print quality
top dots shape
title The Impact of Top Dot Shapes of the Printing Plate on Dot Formation in Flexography
title_full The Impact of Top Dot Shapes of the Printing Plate on Dot Formation in Flexography
title_fullStr The Impact of Top Dot Shapes of the Printing Plate on Dot Formation in Flexography
title_full_unstemmed The Impact of Top Dot Shapes of the Printing Plate on Dot Formation in Flexography
title_short The Impact of Top Dot Shapes of the Printing Plate on Dot Formation in Flexography
title_sort impact of top dot shapes of the printing plate on dot formation in flexography
topic dot formation
flexography
print quality
top dots shape
url https://hrcak.srce.hr/file/293221
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