Example of neutral densities for process colors:
Cyan
0.61
Magenta
0.76
Yellow
0.16
Black
1.70
The neutral density of a non-100 percent value can be calculated from
the area coverage (0-100 percent) and the neutral density of the ink.
The neutral density of a composite color is the sum of neutral densities
for all of the separations.
About overprint conversion
The refine process handles overprints and knockouts two ways:
●
Manually
●
Automatically
You use the manual feature by setting options (
Set Colors to
Knockout
,
Set Black to Overprint
,
Set Rich Black to Overprint
,
Set
Overprint CMYK White to Knockout
,
Enable Gray Overprint
) in the
ColorConvert
section of the refine process template.
Regardless of whether or not you select the manual overprint
conversion settings, the system performs some automatic overprint
and knockout conversions. This section describes how the system
automatically handles the following overprint and knockout
conversions:
●
Die line overprint: The system overprints all objects in the Prinergy
color database that are designated as die lines.
●
Transparent overprint: The system overprints all objects in the
Prinergy color database that are designated as transparent. This
feature resolves a QuarkXPress issue with varnishes.
About overprint handling
Overprint handling is a feature in the
ColorConvert
section of the
process template that helps to prevent overprinting objects from
generating unintended knockouts. You can apply overprint handling in
the refine, loose page output, and imposition output process templates.
The following examples show the effects of using overprint handling.
About overprint conversion
257
