Range: 1% to 100%
Default: 100%
Trap Color Scaling
Lightens the intensity of the trap color.
Trap color scaling helps to make traps in sensitive trapping
situations less noticeable, for example, when trapping pastels.
Scaling reduces the visibility of traps by reducing the amount of
each component ink relative to its contribution to the trap color.
The system applies the
Trap Color Scaling
value to the
separation values of the trap that originates from the lighter
color (when neutral densities are compared).
A setting of 0 makes the traps invisible because all separations
of the trap color become equal to the darker color. A setting of
100 turns
Trap Color Scaling
off.
Range: 0 to 100%
Default: 100%
The
Trap Color Scaling
option in the
Color Settings
section lets
you override this setting for specific colors.
Keepaway Mode
Applies an opaque white trap to eligible color intersections. An
eligible color intersection is one that is between adjacent
objects painted by different inks. That is, each object is painted
by at least one ink that does not paint the other.
A keepaway trap is also called a
knockout
trap or a
reverse
trap.
Keepaway mode is used in packaging trapping.
Black
These options determine how Prinergy handles black and rich black.
You can set a particular separation to
Treat Color as Black
in the
Prinergy Color Editor. This option is available with the PDF Trapper
JTP.
Black Width Scaling
Calculates the black trap width as a percentage of the
Trap
Width
value. The additional margin ensures that any support
screens for a rich black don't peek out from under the black.
A 100% setting pulls back an object's color separations, except
for the black, the same distance as the trap width used on the
240
Chapter 10—Refining
