ANALYSIS OF FLEXOGRAPHY RASTER ANGLE IN OFFSET PRINTING ABOUT THE ∆E OVERPRINT VALUE

Erwandi Widyanata

Abstract


Abstract — Some printing technique have distinctive screen angle. Offset printing have
certain screenangle, there is Cyan = 15º, Magenta = 45º, Yellow = 0º/90º, and key 75º. While
on Flexography printing have different certain with Offset printing. Flexography need
deviation 7,5º every angle, becoming Cyan = 22,5º, Magenta = 52,5º, Yellow = 7,5º, and key
82,5º. Special for yellow, screen angle must 0º or 90º because it have lowest contrast value. If
set out of 0º or 90, it will be high distortion. Element overprint can help to showingeffect from
color distortion because on element oveprint having 2 pile up raster. Significantdistortion can
measured and controled. Therefor need researched how effect of applied different screen
angle. Thisresearch using 20 sample by Flexography angle and 20 sampleby Offset angle were
printed using the Offset printing technique and then measured the CIELab value in Blue.
Result of this research is the occurrence of significant color deviation due to changes in the
raster angle.




DOI: https://doi.org/10.46961/kreator.v4i2.370

Refbacks

  • There are currently no refbacks.



Indexed by:

 


Kreator

Politeknik Negeri Media Kreatif.

JL. Srengseng Sawah, Jagakarsa, Jakarta 12640 Indonesia

Email: jurnalkreator@polimedia.ac.id

p-ISSN 2354-9505 | e-ISSN 2548-9542