To prevent overlapping spot colors from either printing over or knocking out the underlying spot color, remove one of the spot colors where they overlap.
Use a printed sample of the overprinted inks to adjust your screen display to help you predict how colors will look when printed.
Note: In some cases, such as varnish and bump plates, you may want colors to overprint. To adjust overlapping spot colors:
1 In the Channels palette, select the spot channel with the color you want to print.
2 Choose Select > Load Selection.
To quickly select an image in a channel, hold down Ctrl (Windows) or Command (Mac OS), and click the channel in the Channels palette.
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