Konica Minolta KIP Color 80 - Manual (Page 26)

KIP Certified AutoCAD Driver
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reproduced or distributed in any form without express written permission from KIP.  2012 KIP. vii_iv
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Color Trapping
When one color totally surrounds another, they must have either a choke or
spread relationship. The examples below illustrate applications of choking
and spreading. Notice that when a dominant color is surrounded by a
submissive color, the dominant color chokes the submissive color (it draws
the submissive color underneath its edges). Conversely, when a submissive
color is surrounded by a dominant color, it spreads into the dominant color
(bottom example, at right).
Black Trapping
In general, trapping is the overlapping of colors to prevent mis-registration and the resulting gaps of
paper showing through (The image bellow is exaggerated to show the mis-registration).
Without Black Trapping With Black Trapping